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Патент USA US2110347

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March 8, 1938.
E. THORELL
’
2,110,347
MANUFACTURE OF TYPEWRITER TYPES
Filed Oct. 24, 1935
‘7 Sheets-Sheet l
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'
'NVENTOR:
634% JM
I
BY
ATTORN
.
March s, 1938.
E, THORELL
2,110,347
MANUFACTURE OF TYPEWRITER TYPES
Filed 001:. 24, 1935
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7 Sheets-Sheet 2
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March 8, 1938.
E. THORELL
2,110,347
MANUFACTURE OF TYPEWRITER TYPES
Filed Oct. 24, 1935
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March 8, 1938.
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5 THQRELL
2,110,347
MANUFACTURE OF TYPEWRITER TYPES
Filed Oct. 24, 1955
7 Sheets-Sheet 4
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March 8, 1938.
E. THORELL
2,110,347
MANUFACTURE OF TYPEWRITER TYPES
Filed on. 24, 1935
v Sheets-Sheet 5
INVENTORZ
5m (7M
BY
my
March 8, 1938.
E. THORELL
'
‘2,110,347
MANUFACTU§E OF TYPEWRITER TYPES
Filed Oct. 24, 1955
7 Sheets-Sheet s"
March 8, 1938.
E, THQRELL
MANUFACTURE OF TYPEWRITER 'TYPES
Filed 001:. 24, 1935
_
,
2,110,347
‘
'7 Sheets-Sheet 7
Wk?”
_ '
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Fig.2”.
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2”
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I IH IIIH
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| NVE NTOR:
Patented Mar. 8, 1938
2,110,342
.UNITED- STATE-S PATENT OFFICE-r“, (
Edwin Thorell, West Hartford, Conn., assignor.
' to
York,
Underwood
N. Y., a corporation
Elliott Fisher
of Delaware
Company, ' ,Newi»,-_j
> ‘
E»:'- '
Application October 24, ‘1935, serial No. 46,5705; ,7 ._
8}Claims'. - (Cl.-101_—40‘1.'5>)f
" '
This invention relates to a process for making _ and the number of characters used vary of course, I .
types which may be used in typewriters of the according to the di?‘erent'machines. used;_and
noiseless or similar class of machines. In this the languageof ‘sald‘characters. ,
.
. I '. '
Heretofore types?o'f this. kind were rolled in
multiple on alarge'blank.‘_, After rolling the-type- 5
on
facetheit backs
was necessa’rylto'v
of ‘the typeéheads
mill the
andvarious
to formeach
angles
class of typewrltlng machines, the face of-the
type may belocated in an angular relationship
with
deredthe
to-agrip
type-bar,
or shank
usually
which
connected
is riveted
by or
a syssol10
tem of levers to a key on the keyboard of the
shank separately.
machine.
stated, that the angle-‘between the type-head
.
I
-
In their normal position, the types may be 10-
and shank on each type'di?‘ers from that of the 10
- cated respectively in a small arc of alcircle, a
adjoining type, it was necessary to have many
short distance in front of the revolving platen.
When one of the keys on the keyboard is depressed by the operator the corresponding type15 bar is moved by means of the system of levers
connected thereto, thus moving the selected type
to the center of, a guide usually located at the
center of the machine immediately in front of
'20
the platen.‘
.
'
different sets of formecutters to mill the shanks
and the backs of the type-heads. "It was also nec
essary to employ alnumber of di?erent'sets of
?xturesor holding devices to retain ‘the blanks '15
in their correct ‘angular relationship during the
process of forming the shanks. After theshanks
were formed, the type-heads were cutlapart,
‘
‘forming the individual types, and the subsequent
Due to the location of the types in a substantially circular arc, as previously described, the
Due to the fact, as previously ,
machining and ?nishing operations performed. 20
I
Said process presented considerable 'dimculty
shanks of said types are usually located in a di-
and proved costly in both the initial equipment
rection substantially radial to said arc. When
installation required and in its operation. 'It has
also proven to be wasteful of material.
"
the type-bar is moved toward the platen, the type25 nead is in a position substantially parallel to the
vertical platen plane. There are usually forty or
An object of this invention is to evolve a proc- 25
ess for making types in a Simple. inexpensive and
more different types on the conventional machine,
accurate manner. Thus thereis evolved. a novel
twenty or more‘ of which may be located on each
side of the center line of the machine, in a circular arc, as vpreviously described. On the central types, the position of the type-head is usually
substantially parallel to the vertical plane of the
method of rolling the type-lace and character
of each type from a novel individual blank in a
Substantially continuous novel process, Said I‘OIl- 30
ins: operation being performed on a rolling press
with novel equipment.
_
platen, and the path of said type-head in moving
toward the platen is substantially perpendicular
thereto. Thus, on the central types, the typehead and shank are substantially perpendicular
The type-blenk-l‘od-mlling step of this inven
tion produces each character in'a substantially
?niShed form, and at the Same time vforms the 35
head of the type in the form of Wings extending
to one another.
-
. The’ types located at the outer ends of the circular arc have'the type-faces substantially paral110 lel to the vertical plane of the platen, with their
. from ‘the central shank, said wings containing
the head in substantially the required thickness,
With the excess material at the sldes- After the
rolling Process there are taken the Steps of ?ash- 40
shanks substantially radial to the circular arc. ihg. milling and punching, all Of which are here
The type-head and shank thus are in van acute inafter described in detail. There are additional
angular relationship with oneanother. On the steps of hardening. numbering and plating- A11
intermediate types, the face of each type, when Operations are comparatively simple, and the
it strikes the platen, is parallel to the plane of novel apparatus for clamping the types and Per- 45
forming the various machining operations is of
said platen. The shanks, however, are substan
tially radial to the aforesaid circular arc. The
angle between the type-head and the shank varies
in the respective types from the substantially per
pendicular relationship common to the central
6.0
a comparatively simple design.
.
The novel blank-rod preferably‘ used is_ rolled
with a. thick head, having a depending shank of l
substantially the shape and thickness, required "
types to the very acute angle of the outer types.
As the types may all be located symmetrically
for the ?nished type, and the blank rod is out > -'
about the center line, there are thus ten or more
different angular relationships between the type
heads and the shanks of the respective types. On
a machine of this class, the angle between the
Due to the fact that the blank is left substantially
in theinitial form, and very little excess material
is formed on the head during the rolling process,
the use of this type of blank results in economy
type-head and shank of a type on one side of the
of material.
center line is substantially equal to the angle of
the corresponding type on vthe opposite side of
the center line. The number of different angles
into strips of the length required for each‘ type.
,
‘
"
'
‘
It is thus apparent that the invention includes
a'comparatively simple individual rolling process,
without taking cumbersome steps of shank-form 60
aims“;
and
t in a very simnle ,manner.~
_
'
time being peraendicmarew'tbe
detaiirva'riotu steps
of making-‘tho'aioremen- ,
carrying ‘out said We
‘
‘The type-blank consists of‘a
having a‘longitudinal shank. IA shaped rod is
cutinto appropriate lengths for the individual
types. The shape may bear-“resemblance to a
squarewlre or rod,.irom,one iace oi'which pro
'~
the concluding portion oi’ the stroke oiv ‘every
a
as well aathe ndvel machines and
devices and other appliances. employed
E?types,
'
ing type from an scute’ang'lo ‘t0 li?aht
uired
t
a
'rhehex‘tstep is to‘score or grove the true. .
thereby demarking. the iiash portions
the‘
sidesotthetypeitselLv ,- 1
' Subsequently theaeside‘iiash portions aren
mo‘ved. for the next‘ operation is to trim the sides .
oi the‘types byamilling cutter, which. as‘aoon
as it strikes the-type. breaks-oi‘! the ?ashes along 10
the scored lines:
‘
'
Theportions oi’ ?ash remaining at the top and
' i iectsa longitudinal‘iiang'ei; 'l‘he'stock'iurnishes ‘bottom-oi each type are ‘nextmilled om‘by a
the metal for the type-faces. whilegtbe ?ange 1_ milling operation which forms a bevel ‘or cham
, ier onthe' type-ends, to serve as means for guid
‘furnishesv the material for the Wile-shanks
type-guide
‘ In..the'noiselessytype oi ‘m'eehinener which ing 'thejftypes into the‘
are designed, the type-carriers work , oi" the typewriter. Said sitecsuise is in the form
in verticaljplanes. which converge to the‘ print- 1 oi’ a rectangular ‘slot with a"
‘1 ing point; By its key,‘eachcarr_ier,is thrust rear
"Watt!!! against the platen; 'rhet'yoe 1! attached
'"to‘itsjcarrie‘r by a shank which is injth‘e' plane
enlargement. ;
.The'next operation is to ‘mn'ove'a littleirom
each end on one side of the‘ty‘pe, thus making
the ‘samea ‘tri?ejnarrower at, its end toiit the
of the carrier, .wli‘ile the‘typ'e-i'ac‘e ?ts ‘to, the.‘ oneside oi’ the iixed type-guide oi’ the typewriter
platen. "Thes'hank is,‘ therefore, at an angleto ‘against which the type isthrust by the
the‘type-tace. ‘The angles ‘otdiil'erentjshanks
Next rivetwholes are made‘ior use in, attach
ing the‘, ?nished typeto the type-bar.
>
vary, in consonance with the positionjoi.’ the in
dividual typeset-net in. the system- At the mid Q There are then made cuts in‘ the
“dle'oi. the machine,- the shank‘islfatabout fa
lower-ends oi, the type. in? the natureoil‘clear
vsnces, to'p‘ermit the type to enter the ?xed guide,
sides of the system, the shank isahout ‘45 degrees coming to: rest against the side of the‘?xed guide
to the type-face. ~The engiessraduatedehd to which the'type is thrust by the type-bar. .1
increase in sharpness‘jrom; the ‘middle to the ' Theeight central types. that is a group oiiiour
sideso't the type-barsystem."
j
‘oneach side of the centrala line oi’ the machine,
Each‘type, however, is formed from one blank. then have clearances cut in'itheir top and bottom
with‘i'tsiiange or'shank, and the ‘blanks ,are side portions, these clearances preventing. the
. rightjangleto the type-face. ‘At ,the extreme
.30
‘
C5-
GI "the ‘same forall or‘ many types. ""l‘hepositionbt '
the shank portion with ‘reterenc'e to .thestock
portion is not changed, but“ thedirection oi pres
sure of the type-dies uponthelstock portion varies
for di?erent types, owing-to the different posi
tions in which the similar blanks aremountedvin
Fth‘e'pr‘ess and presented to the‘ type-die._ ;;
type-die, which usuallyhas' a rolling‘mo
,tion,‘ keeps 'the same position and motion‘ in the
machine,‘ but the blanks are
45
in a variety '
of positions, and presented in correspondingly
types? fouling upon the tyne-Elude as they ap:
proach the platen. "
Y
I o
Other features and advantagesiwilly'hereine
aiter'appearth
.
a
,
-
In‘theaccompanyingdrawings,
‘
Q
‘ Figure 1 is a diagrammatic plan view reproach;
tatlon of a portion of a typewriter oi" the'noise
less class, showing the position of several ‘types
with relation to the platen, the types being 'in
their
home‘position.
.-
'
>
. t Figure 2'isa partial elevation 01' certain of‘ the
diii’erent ways to the type-dies. Accordingly, the
rrparts contained in Figure ,1, showing two types
blank-dies have recesses in which to mount the 'imounted
on a single type-bar, a common feature
shanks, and are‘provided with means for sup
oi noiseless typewriters.
portins ‘the stock at the tyne-mums operation- , j Figure 3 is a plan view oi onehi!v the
By simply inserting any .‘blan'kin, the desired
mount in‘ the ‘press; to give the blank" the de-‘ located, types'in printing position against the
sired position, and, then" by ‘rolling the type-die Y platen, with one of the directional lugs 01 the
thereover, there is produced a type, having a type-head in contact withan edge of the type
rather‘ broad lateral spread or?a'sh; overlying
guide.
‘
'
‘
i
‘ Figure 4 is a‘similar representation of one of
65 the top‘ surface of the ‘mount or blank die-"1 With ' ‘ theendtypes.
a
‘V
i
-
di?ereht rolling‘ dies _ therev are ‘used .diii'erent
,mounts" or- blank-holder dies, the mountsbeing
‘distinguished from one another,‘ mainly by the
diilerent positions in whichthey holdthe amiss
respectively.
‘
"
"
‘ There are enoughi‘blank-holding ‘dies to give‘
Figure 5 'is- an elevation, partially in section, -
showing the type-guide,‘ with a type-head ~in
printingtposition.
‘
‘
-
-
Y‘ I"
Figure 6 illustrates a completed type-head.
‘if-Figure‘ "I is a side-elevation oi the opened‘ die,
withone Jaw ‘removed, showingthe die-opening
sldeoi they'prin‘ting'point inthe typewriter; The ‘ plunger and: the ‘locking wedge.
the right positions to all‘the types‘used on‘ one
a is a side elevation '01 the die,‘ with one
';same dies ‘are used rot-‘the;
heir, or 1
the-types, for ‘which
th y arefmerely jaw removed, showing the die-closing member
reversed in‘ positions, ing‘the' press. '1,
The product ot‘theiirst operativef steps
‘a
,typethavlhs‘a ?ash at’anansle tithe
In most instances‘ the triangle‘
.
, By‘this step, thereis also lei't'ior iori'ned, at
703 the
ends of the‘blank,ia quantum of stockli'r'om
which, at subsequent ,_ operations, there
‘amped theguiding bortions thetiehter'the ?xed
guide 01' the, typewriter, and (thereby
75 change the direction‘oi movement of the advanc
‘forcing the blank into
andthe wedge"
A‘ tightened asainst'the die-head.)
‘ ‘
Flgureiiisa‘section throughthedie utn'isesih”
v holding the'blank during the process of rolling.
The dieis shown in the‘open position with the
Y blank in position. ‘
70
Figure ‘10 is a section through the die of ll'lg- ‘
ure‘9. showing the die'closcd by the action of thev "
die-closing
-
‘
Figure i1 is a perspective view of the blank bar
3
2,110,847
stock as it is received from the rolling mill, with
the type-segments illustrated by dotted lines.
Figure 11‘ shows a die for a central type.
Figure 12 is a partial section and side eleva
tion of the rolling press, showing the die ‘and
blank in position for the rolling operation.
Figure I; is a general perspective view of- the
urally being at an end-type, as 38, Figures 1
and 4.
-
Y
> _
When a key on thekeyboardjs depressed, the
corresponding type-bar 24 carries the type from
its home position in the arc Z-Z to a position
where it contacts the guide 31. The edges 39',
40‘ of the lugs 39, 40, Figure 6, of a type
rolling press used in performing the: rolling op
head contact edges such as 4!, “I of a pair of
erations on the type-head from the blank to the 'notches 42 and 42‘. formed in the center of the
10 rolled type.
'
Figures 13b and libL show the types and the
blanks from which they are produced. The
blanks are alike, but they are shown in angular
positions corresponding to the positions occupied
Figure 14 is a perspective which shows the
grooved ejector used in removing the rolled type
from the press ‘after the completion of the rolling
operation.
-
35
'
used in co-operation with the rolling press to 20
form the type head and'shank and give the cor
Figure 16 is a diagrammatic front elevation of ‘ rect angular relationship between type head and
the die in the open position, showing the pick-off shank preferably has two jaws 5| and 52. Jaw
?ngers in position to lift the rolled type out of 5| is formed with a vertical rectangular channel
53 having‘a vertical side 64 and a tapered side 25
the die.
Figure 1'7 is similar to Figure 16, showing the 65, the latter sloping uniformly from top to bot
rolled type being carried on the pick-off ?ngers. tom. A vertical rectangular abutment’ 54 in
tegral with law 52 is'formed to enter vand par
Figure 18 shows the rolled type after it is de
tially occupy channel 53 when the two jaws are
livered from the rolling press.
‘
Figure 19 is a front elevation showing the vise brought into intimate contact, one side of abut
used in holding the rolled type and the tool used ment 54 contacting the vertical side of channel
53 so as to leave a substantially L-shaped opening
in scoring the type-head in preparation for re
remaining.
~
moval of the ?ash.
A
slidable
die-head
55
having a width substan
Figure 20 is an end elevation of the wheel
which mounts the viws of Figure 19, showing tially equal to that of the abutment occupies the
space immediately in front of the abutment.
additionally the scoring tool and the ejector hav
Die-head 55 has formed therein a longitudinal
ing ejected a scored type-head.
,
Figure 21 shows the vise used in clamping the shoulder 55‘, which, during the rolling operation,
type after the scoring operation; the type being
Figure 22 is a representation of the milling op
eration for forming the bevels on the ends of the
type.
,
Figure 23 is a representation of the operation
v45 for milling the guiding lugs at the ends of each
type.
-
.
Figure 24 is a representation of the clearance
milling operation milling both ends of the shank
will form a shoulder 43 on the under side of the
finished type 30. This shoulder serves as a gage 40
for all of the later milling operations. The
thickness of the type from the top of the shoulder
43 to the surface of ‘the type-character 44 is the
same for all of the types.’ A locking wedge 56
(Figures '7, 8, and 26) having oneside tapered 45
to match that of channel 53 occupies the remain
ing space and serves as a means of locking die
head 55 in position. The wedge'56 and die-head
55 are operatively associated by means of a
so as to clear one side of the type-guide.
tongue 51 formed on the wedge, engaging a suit
Figure 25 is a representation of the bevel mill- _ able recess 58 in the side of the die-head. An
ing operation (used on the eight centrally located
types only) .
Figure 26 illustrates the parts separated that
55
type head and shank.
The novel die 50 (see Figures 11', 15 and26)
40 in position for milling the sides of the type-head‘.
50
obvious, therefore. that ‘the angle given such
edges must co-operate with the angle‘between
Figure 15 is a partially sectional representation
of the type-blank being rolled.
20
30
an angular relation to the platen to one sub
stantially perpendicular thereto, thus insuring
the correct printing pressure and position. -It is
15 in the various graded dies.
25
guide 31, see Figures 3, 4_, and 5. The purpose
of this contact is to de?ect the path of the type;
head, changing the direction of its travel from
make up the die.
'
In a typewriter of the noiseless class, the set of
types 30 is arranged in a'substantially circular
arc Z-Z, as shown in Figure 1, a short distance
forward of the platen 3|. The types on one side
of a center line X--X of the machineiare. sym
60 metrical with similarly located or complementary
types on the opposite side of the center line. The
type-heads 32 are substantially parallel to the
vertical plane of the platen.
The respective shanks 33 of the types are riv
50
extension 59 depending from the bottom die
head 55. to a point below the bottom surface of
jaws 5| and 52 serves as a means of disengaging
the. die-head andthe wedge from contact with 55
the jaws 5| and 52, an upward pressure on exten
sion 59 lifting the die-head 55 and associated
wedge 56.
’
For rolling any type in which the type-head 32
forms an acute angle with the shank 33, such as 60'
an end-type 38, a portion of the top of the abut
ment 54 on the jaw 52 of the die is chamfered
at 60, as indicated ‘in, Figure 9, to an angle corre
sponding to the angle between the type-head and.
the shank of the type, the length of such chamfer 65
eted or otherwise secured to type-bars 34, located being substantially equal to the type-shank. Two
radially with respect to the arc Z- Z. The type substantially semi-cylindrical grooves, as 6|, are
' heads 35 of the central types 36 (Figures 1 and 3) also milled out at the top of the bevelled surface
are substantially perpendicular to their shanks of the abutment 54 to provide for the formation
33, as the path of these types is approximately of the lugs 33 and." at the ends of the rolled 70
perpendicular to the plane of the guide 37. The type 30 (see Figure 18) , which lugs will later be
machined, to form the direction guiding lug faces
angle between the type head ‘and shank of in
dividual types becomes increasingly acute as the 39“, 40‘ which contact the edge of the guide 31
position of the type-bars ranges from the center (see Figures 3 and 4). The surface 62 below
the top of the die-head .55 is bevelled to a corre 75
75 to the ends of the arc, the most acute angle nat
65
4
1.110,“?
V
spending angle,‘ to overlie the chamfer *0. in‘ to rotate with the lower‘gear ll. Over an arc
, parallel relationship, the space I! (Figure 10) _ ll extending between the teeth 00 and II on the
" between the surfaces when in operating position gear II said gear is blanked.‘ The lower gear OI
being equal, to the thickness of the type-head . is similarly blanked over an are It sons .to be
?shankltseeli‘igurew.
,
intermittently .driven by gear ll. The blanked‘
,.
ll'or‘rolling an oppositely positioned end-type, - ' portion ofgear >88 is arranged to act as a debut
in which the angle between. the head and shank is I as it engages the blanked portion of gear ll. thus; .
' the
that of (type 38. but oppositely‘!!
posed, the‘same die my be used. The die‘ 5.
when inserted in the die-bed, l-llmis. however.
preventing any rotation of gear I! although gear
83 is constantly rotating.- The sprocket ll lacon
nectedby a'suitable chain drive 82 to the lower‘ 10
reversed in order that all of the characters may
sprocket ll, said sprocket 08 being carried by a
be engraved on the rolling dies . i'll in a uniform
‘ manner, and the 'rolling',diesfuniforrnly mounted
shaft 04, suitably journalled in an extension II
in the press.- For any other pair. of types, the
15
angle between the respective ‘heads and shanks
will ‘be correspondingly equal for each type al
from a gear chamber 80.‘ ,
,
p
‘A rock-shaft; I1 is suitably iiournalledto the
left column ‘II. of the machine, and carries at its
outer end _a rearwardly extending arm II which‘
though less acute than they angle’ between the . is pivotally connected by.;a pin .9 and a rigid. link
head‘ and shank‘of the'fend-type I8, and the die: I" to a, pin ill. on the web of sprocket, ll.‘ The »
vhead II and the abutment 54 of the die 5.0. are inneror machine end of shaft ~91 has fixed thereto
20
correspondingly beveled .to the appropriate'a'ngle.
an arm III! which at its rear end is' removably
There mayjthus, be eleven or more different
fastened‘ by a bracket!" to an ejector I“.
sets of dies I0, ‘depending uponthe number of,
Aroller ll?ismountedonapin Ill flxedtothe
angles. required between the type heads ‘and . web of sprocket II. A Geneva follower I II, which
shanks, to form a set of type. Reversing the dies
cut therein or attached thereto four equally
25 allows the press to roll the forty-two or more types i_ spaced radial slots H3‘, H3", “3°, “id, is secured
required per machine using one quarter the num.- ~ to a rotatableshaft I“ mounted on the gear
ber of dies. There are two types on each type
chamber 90. A helical gear ll! located within
' bar. Each bar hasa substantial duplicate on the gear chamber 96 is also mounted on the shaft
opposite side ofythe printing center and having i so as to be driven by Geneva follower “2., Gear
80
m is in mesh with a similar helical gear in, ‘
Figure 11 shows the blank‘bar preferably of secured to a vertical shaft ll'l, vwhich at its upper
cold-rolled drawn steelhas, it is received from' end is secured to or integral with a die-bed Ill.
alikeangle;
’
_
,
i,
.
v
.
25'
v
' the rolling mill, with the head 'lleilush with one
side of the ‘thin~ shank ‘II and substantially per
35 pendicular thereto. This head may be of square,
rectangularT-section or of other suitable cross
section, depending upon the detailed method of
operation to be followed, in making thetype.
~ The shank _‘II is bevelled at its lower, outer edge, _
40 .as at 13. s -'
This bar is cut'lnto‘blank's 12 of the proper
As the gear I! is intermittently driven. by the
constantly rotating gear II,‘ the sprocket O8 is
likewise intermittently driven. At‘a point dur 35.
ing the rotationof sprocket 93, the roller I ‘ID will
slidably engage a slot in the Geneva follower 'I I1, -
urging the Geneva follower and its associated
gear ll! into a quarter revolution. As the'shaft
III is secured at its upper end to the die-bed Ill, 40
and as the shaft is driven by the gearing I li‘and ,
1 length for the forming er. the ?nished type. The "N6, the die-bed III will thus be rotated in
head ‘10 of the blank 12 contains enough material
counterclockwise quarter revolution steps. The
to-form the type-head and character. ‘ As the
timing mechanism is so arranged as to have the ,
45 bar from ,which this blank is cut is cold-?nished,
idle periods of die-bed Ill equal to the‘duration' 45
‘the thickness of \theqshank ‘II is uniform‘ and - of the type-rolling process.
practically equalto the ?nished type-shank thick
It will be understood that although the pre
ness required. iOnlyeone form’ of-type-stock bar. ceding desoription hasspeci?cally mentioned a
is required for the. manufacture of all of the types four position intermittent movement of ‘ shaft
usedin the typewriter-
.
.-
-
_
-
g
.
When thedie, is opened as at Figure 9 by rais
“1, an intermittent movement ‘having any 50
reasonable number‘of stations can be accom
ing the die-head [5, the two/beveled surfaces 60' ' plished by ,a‘suitable alteration of the timing
and 82 provide aspace 63 for the insertion‘ of the
mechanism.
,
v
_
The vertical mounting “8, which depends from
shank ‘ll of theblank 12. The die is closed by
lowering the die-head 55 and gripping it between. the stationary bed I" and carries gear chamber 55
the sides of the channel,“ by means of the wedge ' 96 at its lower'end, journals shaft III. The bot-,
56, see Figures? and 8. When .the die is closed, tom of the stationarymachine-bed I29 rests on
the bevelled surface 62. of the die-head and 80 the top surface of thejbase ‘II. The bottom of
of the jaw-abutment grip the shank ‘ll tightly and revolving bed I 2| bears against the top of the
' vstationary bed'llll and is thereby maintained in
60. hold ,,it_ in position for the‘rolling operation.
The rolling press, Figures 12 and 13, has two . a horizontal position. ' The die-bed H8 rests on
vertical columns 15 and 16 connected by an arch the upper surface of the revolving bed Iii "and is
‘II at the top. These vertical columns are fastened connected to it as'iby pins in so as to cause the '
"at vtheir respective bases to a table or machine simultaneous rotation of the revolving bed.‘
65 base ‘II. A shaft 19, preferably journaled at 80
The die-bed ,Ill has four or more operating
and Ii in the two vertical columns ‘I5 and‘ ‘I8, is stationsA, B,_C, and D, Figure 13. Where there.
connected at one end to an electric motor or other _ arefour stations-theyare located 90’: apart ‘and
power source 82 by a gear train 82' or other suit
four square or rectangular holes I28‘; I28", ill‘, ,
-able means of. transmission, and is ‘fitted at its
‘opposite end with a timing gear”. A team 84
is mounted at the center of the shaft 19 between
the two columns.’ Thetiming gear 83; meshes
.i2l°,are cut-in the die-bed to receive the dies II.
The bed is revolved intermittently by means of 70
the train of gears and the chain-drive previously I
described. The extension is depending fromthe
with and drives, agear I5 journaledon a shaft
lower end of the die-head B5 is provided for lift‘- ~ ‘
88, mounted at the outside of the column 1'... ‘A
ing the die-head and opening the die. For .each
die, a plunger I 24 is slidably ?tted in a cylindricali
chain-sprocket 81 is mounted on shaft 80‘ so as
2,110,347
hole in the revolving bed I 2 I, the upper end of said
be inserted through the hole I 45 in order to raise
plunger abutting the end of ~the extension 59 on
the \wedge I28 and the front jaw of the die so _
the die-head. The lower end of the plunger I24
rides in a cammed channel I25, preferably cut in
the stationary bed I20 below the revolving bed
as to remove the die 50 from the press. The other
I2I. The cam I25a raises the plunger I24 and
lifts- the die-head 55, thus opening the die at a
When the die 50 is reversed, as previously de
scribed, notch I44 and wedge I28 are located over
predetermined point in its path, usually immedi
the front hole I45.
ately ahead of station D. The die remains open
10 until/it has passed station A where the operator
inserts the blank 12 in theopened space 63 be
tween the beveled surfaces 80 and 82.
-
jaw may be likewise lifted by inserting a pin
through the rear hole “8..
_
.
.
,
"
A sliding frame I50 is supported at its sides by _
channels I5I formed in or attached to the vertical 10
columns 15 and 18. The channels guide frame
I50 in free vertical ‘movement. In a forwardly ex
Between the outer edge of any rectangular tending yoke- I52 integral with frame I50, 9.
hole, as I23" in the die-bed H8, and the jaw of horizontal shaft I53 is fitted, at the center‘ of
which, immediately below the cam 84, a cam‘ 15
15 the die 50, a wedge I28, Figure 12, which tapers in
thickness from top to bottom, is inserted. This roller I54 is journaled, so as ‘to rotate freely on
wedge locks the die in its position in the die-bed. ‘shaft I53. Shaft I53 is eccentrically mounted in.
In rolling a type in which the shank 33 inclines I frame I50 so as to provide for a vertical adjust
ment of roller I54,.the adjusting means compris
in an opposite direction from~~that shown in Fig
20 ure 18, but where the angle between the type- 7 ing a‘rotatable wheel I53“.
~
head 32 and shank 33 is the same, the same die 50
is used. his necessary only to reverse the die in
The lower portion of the yoke I52 is formed
into a rack‘ I55 having toothed extremities I58
the hole I23“, the wedge ?tting against the jaw
and I51 and a planar central surface I58. ~
20
Two supports I59 ‘and I80 with rack-toothed
of the die,‘ in thesame manner.
The outer circumference of the revolving bed~ surfaces are located at the machine-bed v18 and
25
I2I is slotted at four equally spaced points I21‘, are disposed in the same vertical plane as the rack'
I21‘), I21°, I21d, corresponding to the locations of I55 butare spaced outside of the toothed rack
the die-holes I23“, etcl, in the bed. A detent—bar extremities I58-and I51. At least one of the sup
J28 preferably rectangular and having a square ports, such as I59, is mounted on a suitable spring
I8I which urges the support in an upward direc 30
30 nose to engage the slots I21“, etc., is slidably ?t-'
ted in a suitable guide I29, preferably an inverted
tion.
channel-member having a closed rear wall I30
and secured to the stationary bed‘at the rear of
the machine. A compression spring I3I,~inter
35 posed between bar I28 and the rear wall I30 of
guide I29, reacts to urge the detent-bar I28 for
wardly.
.
-
The guide has a suitable opening I32 to expose
rack-teeth I33 cut into the upper surface of
40 detent-bar I28 and to provide access for the
actuating lever I34, the lower end of which has
teeth in engagement with the rack-teeth I33.
The actuating lever I34 may be in the form of a
bell-crank, pivoted on a shaft I35 suitably secured
45 to the machine-frame. The rearwardly extend
ing arm I38 is also secured to shaft I35 and is
pivotally connected by means of a pin I31 and link
I38 to a cam-roller I39 mounted on an arm I40,
which is pivoted at I4I to the machine-bed 18.
50 Cam I42 mounted on shaft 94 so as to rotate
with the sprocket 93 imparts a substantially ver
tical motion to link I38, which is translated into
a horizontal movement of detent-bar I28.
The cam I42 engages the roller I39 immediately
55 prior to the engagement of roller IIO with a slot
of the Geneva follower II2, so as to withdraw the
detent-bar I28, in opposition to spring I3I, prior
to and during the rotation of the die-bed II8 to
the next operating station. When the next oper
60 ating station is reached, the engagement of cam
I 42 and roller I39 will terminate, and spring I3I
will be free to drive the detent-bar I28 into en
gagement with a slot, as I21°, so as to prevent the
further rotation of the die-bed during the rolling
process.
’
'
As indicated on Figure 12, the bottom of the die
~
-
'
' A pair of rollers I82 and- I83 having toothed
extermities I84, I85 and I88,.I81, mesh with each
other and have their curved surfaces in contact.
The upper roller I82 contacts the plane surface
of the rack I55, with the roller-teeth I84, I85,‘
meshing additionally with the rack-teeth I58 and
I51. The toothed‘bearings I88 and I89 of the '
lower roller mesh with the rack-teeth of the sup
ports I59 and I80.
49
Because the rollers aregiven only a limited
rotation, the front and rear surfaces can be
planar, as shown in Figure 13. The bottom sur
face of the lower roller I83 is additionally cut
away, leaving only a central portion I10 of full 45
radius, in which portion the character-forming
die I1 I , having a portion of its outer surface equal
to the width of a type 30 shaped to conform to
the roller surface, is removably inserted and suit
ably locked. The character-forming'die I1I (see 50
Figure 15) has female impressions 44“, Figure
15, of the required type-characters 44 cut into its
surface I1 I“, so as to form the characters in relief
on the type-head blank 12 with the application of
suitable rolling pressure.
-
I
55
' A shaft I12, journalled at the rear of the press,
has an eccentric I13 ?tted thereon, the shaft and
eccentric being continuously rotated during the
press operation by a gear-train or other connec
tion to the outside power source 82. The gear 60
train 829-, which serves to connect the shaft 19
to the power source 82, preferably is so designed
as to give a 25-1 ratio between the rotation of
eccentric I13 and shaft 19. An arm I14, journaled
on the eccentric I13, is pivotally connected by 65
means of a link I15 and a pin I18 to an arm
I11 ?xed to the rear side of the upper roller
holes I45 and I48 which extend through the base I82. The reciprocal motion given to the arm I 14
18, the stationary bed I20 and the revolving bed by the eccentric thereby imparts a forward and
I2I are located so that the front hole I45 is lo . rearward rotation to the rollers I82 and I83, with 70
cated at the juncture between the front notch the upper roller I82 rolling against rack-surface
I58, lower roller I83 rolling against the type
I43 and the wedge I28, and the rear hole I48
corresponds to the position of the notch I44, blank 12 and the-various meshing gear-teeth and
when the die is at the front of the press-station rack-teeth assuring a positive alignment of the
'
75
75 A. A suitable rod or pin (notshown) may thus rollers.
' 50 has at its ends two’ notches I43 and I44. Two
"8,119,847 a '
‘
downwardly/extending die-closingmem
.
'1 ‘preferably-consisting“
m fastened to through'mediumof yoke)": and
theyoke III‘, has a‘ rectangular lower extremity" rollers Island Ill-was cam“ continues tem
psraileltothedie-bed-lllanddilbosedexactly tate,theconstantlyincreasing radiusoftheramp“
The lower extremity has
a is‘! exerts'a correspondingly increased prelim-sv
_
‘notch l-‘lvl cut therein'to ‘engage the headof the on the'die I‘Il‘and thelbla‘nkfli. The combina
type-blank ‘II and has a ?at surface lllto en ‘tion'ofthe increasing‘pressure and
Y
sue the raised‘die-headfll'
.
<
.
moticn :of the die; I'll workstthe 'metal‘of‘ the
, At-station "B". the depthiof the“ cammed chan ‘ type-bar blank-head, ‘ll? into the
~10 ' nel‘ lilxin which the die-opening plunger 124' formedin the die-ll. importing the shaped the
over ‘station ‘'8!’
. rides has reached a‘pointwhich will permit the
die 'to the type-blank "metal, and giving-the,
closingzofthe die-head ls and?the correctalign jshank "substantially itsexact shape,“and its‘.
1
‘mentof the blank‘ ‘I! in the die ‘I. - The die
exact angle in relation to‘ the now rolled type;
head II with the‘ associated wedge I. may drop ‘ head II,
15 and 16. When the point
1d bygravity, and the-blank 12 may
Y
en be read“y
I” on_ the cam-surface is reached the shape of 16
~ for the rollingjo'perationr
the type-head and shank is substantially
> 1__>However,.'_the' diegclosing
pletedéand the characters “inrelief
sur- 1
1 made positive by the downward motionof the‘ arm. 1' faceof the type-head "have taken shape,'seeb
I", which occurs as frame Ill descends during . - Figures l5and1l6. - Duringthedwell period-‘bee
operation.
the
process of rolling a blank ‘I! at the next 4 tween thepoints island: as on the cam-surface;
"C." 1 Thedie I. therefore is positively . the pressure of the rolling dieon the, type prac- "
closed ‘and locked. at‘station "B" by the pressure ‘ tically becomes ‘zero and-the‘characters ‘.4 are
’ of'arm.» "I on. the die-head ll,;which is-forced ‘given their ilnishednaccurate.;form.. The wings
a’ down ?ush with'the su'riace of. theldie so. ‘As the
‘I, ‘I on the rolled type-head‘were in the process
die-head I‘ and thelocking wedge as arepperas" [of formation throughout ‘the rolling’ operation.
tively associated, closing the die serves additional‘ f's'aid wingabeing, composed of the flash, or excess
1'
' metal.~ Point III on them marks the/‘end‘of
For aligning thedie "relatively to the rice“, th’ehlrollihg/ operation.‘ which; for the custo
the..rolling die |'|l,‘there is provided anadjuste type'trstock metal, usually takes twenty‘strokes‘"
:ly to‘lock its
7
mary
.
so ing device in the form of a screw ‘Ill, Figure 12. of-the rolling die;
30
The screw has collars which straddle’ a stationary ' The rolled type a (Figure is) as itu ‘rams ‘
' - ledgelll, and‘when turned the threaded rear . by this process thus-‘consists of a-type-head ‘82
end of~the screw shifts the stationary bed Ill substantially complyingin thickness and shape a '
with the die-bed Ill forwardly or’backwardly. . .to;_the ?nished type-‘head “(Figures 8.4. and .6)‘ Jr ‘
Suitable means ‘(not shown) are‘ provided to with ‘a certain amount of excess vmaterial or ?ash
maintain the adjustment. .The vertical mount-s projecting from the sidesgin the form 01 wins: ;»
ing I it, the top of which is connected to or integral u, 4', lugs ll and II molded at: theendslol the
with the stationary bed I", is also moved with type-head beneath the head; a ‘shank 38 formed:
the die-bed. I I8 and the bed I".- As the die-bed Sat-the correct angle ‘relativeato‘the head‘and a5
H. is attached tothevertical shaft “I; which gaging shoulder ii. The ‘characters ll insub
is in turnjournaled "within the vertical mounting stantially their .iinished form ‘are formed in relief
ii... any horizontal movement ‘of the stationary on ‘the: face ‘of the type;head. ‘ The type-bar is
‘ bed “[18 transmitted through'shaft ll'l to-die
thrust endwise to abut against gage U“ when i type
bedj‘l Is,‘ and consequently to the die 50, holding is riveted to bar.
a blank 12. Similar adjustment is provided at;v -, The continued rotation‘ of‘lthe
allows the
one. side of thestationary bed tolaterally adjust frame Ill and the cam-roller lllto rise by‘ the
th'edie "with relation to therolling die 'I ‘II, the ‘reaction of spring‘ Ill
it reaches thejde
position of which is substantially ?xed with'rela ' pressed surface I" of the
During this‘pe
tion to-the' center of the press: In this manner, - riod the pressure on the rollingdieis entirely-re
the'blank ‘I! may be. moved to the exact center
- vof‘the rolling die to insure a correct relationship
' between the blank and‘ the rolling ‘die In during‘
the rolling operation.
-
The contour of the earn .4 is?as follows: The
lieved andv the rolling dieyis raised‘out of engage- ‘
ment with theirolled type 8., see Figure 13. ‘ ‘At
or ‘about thispoint,thej*die-bed H8 is rotated .
, through an angle 0190', bringing thenext‘die II
from station 13 to station‘C under the rolling die‘.
56 radius of the cam from the center ‘I! to the ,cam- - and the process is repeated. .
.With my invention,'therefore, what ordinarily _ I
point
surfaceI“increases'continuously
until a suitable pointfromja
I" is reached,j~
starting
would require at least'an operation‘ to form the ' thus providing a ramp!" for starting. the roll
type-head ‘and a‘i'rolling operation to: form the I _ '
ing'operation. From the point vlll'on the‘cam ' characters is accomplished in one continuous op-‘
60
surface to the point I", the radius is substantial ‘eration by the combination of gradually applied
ly constant, providing a dwell ll!‘ during which vertical pressure and simultaneous. oscillation‘ to’
the‘ rolling. operation is completed. After the a rocking die.
'
' point m leaves the roller no, there is: a ‘deep
,‘After leaving station C,‘the next movement‘ of l
depression I" in the cam-surface to permit the the die-bed Ill brings the plunger Ill into con-'1
66 rolling‘die' toraiseunder action of the springs tact with the‘ramp I25‘ of the cam-track I26. 06
lil‘. to clear the'die i5 and the blank 12 while lThe'sliding of ‘the plunger ‘on the cam-"ramp! ‘
the die~bed is'turned to another station.
when the die 50 has been positively closed by
. > the?action of arm "I, the next quarter revolur
causes the plunger to liftTthe’die-head 58, thus ‘
freeing the rolled type irasjseen in’ Figures 14.‘
and 18. " The opening of the- die
lifts the
70v tion of die-bed l‘ll brings die ‘II and blank 12 into ' Just previously rolled type'sogthat the ?ash ‘4! is 70
‘ operating position under therolling die I'll, which ‘
‘with roller‘ l?'is continuously being rocked back
and forth. ‘The cam“, continuouslyrotating
115
now spaced from the die-bedlils. Thisaction‘
occurs before the die reaches station D.
- During the rotation of thedie-bed m‘ and as I
-with shaft 1s, brings the point no on its surface
the‘opened die II with the rolled type ‘30 therein!
into engagement with the cam-roller I“, exert
approaches station D, the ejector I“ previously
7
2,110,347
mentioned is brought into operative position, Fig
ures 14 and 16, by the downward .motion of arm
I02, which by reason of its operative association
with the timing gears 83 and 35 and sprocket 93
(a is synchronized with the',movement oi’ the die- -
bed H8. The machineend of the ejector I04 is
provided with two pick-off ?ngers I05 and I 03,
the ends of which are curved and disposed in
advance of station D. The ?ngers are formed at
10
the ends of the plates I01 and I08 comprising the
bottom of the ejector-channel I09. The ejector
39 and 40. The wheel 203 is mounted vertically
on a revolving shaft 204, which is rotated in
termittently, by means of a “power source (not
shown). There are eight or more vises spaced
equally about the circumference of the wheel 203,
each vise accommodating one type. The type 30
is inserted in the vise 200 at the station E, Figure
20. When the vise containing the type 30 reaches
the upper station F, the type-head 32 is under a
the center of the head of a scoring machine 205 10
‘which supports a vertical plunger 203 carrying
two scoring tools 201 and. 208, the space between
which is substantially equal to the required width
of the ?nished type-head 32. The scoring tools
201 and 208 form two parallel notches 209 on the
and 16) the right wing 45 of the rolled typehead , sides of the type-head 32, as indicated in Figure
.32 slides on to the inside ?nger I05 and rides up 19. The space between the scoring tools 201 and
on it, bringing the rolled type’ 30 to a position 208 is occupied by a pad 2 I0 which may be made
of rubber or other compressible material. The
where the shank 33 is practically clear of the 'die
20 space 63, see Figure 17. At approximately this rubber pad 2I0 is under compression during the 20
point, the left wing 40 of thetype-head 32, now scoring operation, and when the plunger 206 is
clear of the lifted die-head, rides on to the outer raised, after the completion of the scoring
?nger I06 and before the die-bed I I8 has stopped operation, padv 2I0 expands and presses against
at station D, the»rolled type 30 has been removed the type-head 32 and holds the type 30 in
position.
'
from the die 50, the wings 45 and '46 of the type
head resting on the channel-plates I01, I08 of
The rotation of the wheel brings the vise 200
the ejector I04 as shown in Figure 17. During the to one of the lower stations H, when the scored
period in which the next type-blank'is being type 30 will be pushed out of the vise 200 by
rolled, the arm I02 is rocked upward about shaft means such as the ejector-bar 2“ which co
30 91, tilting the ejector upward, and the rolled type , operates with the plunger 206. A new rolled type 30
30 slides by gravity along the channel I09 of the 30 is then manually inserted when the vise 200
ejector and falls into a suitable receptacle I95. again reaches station E at the side of the wheel,
A proper curve is given the channel I09 to remove and the operation continues. As there are eight
?nger I05 is in advance of the other ?nger and
passes at one side of the type under the lifted
?ash 45 as the die 50 approaches station D. As
the die 50 travels to its station D (see Figures 14
the rolled type in a direction of the shank 33, so or more vises on the wheel, the revolution of
that there is no interference during the rotation which is continuous; with the'exception :of the
of the die-bed I I8 to station D. It will be under I stops madejor carrying out the scoring oper
stood that the ejector may be removed from the ation, this entire operation is therefore substan- _
bracket I03 for changingthe ejector to co-operate
with the type being rolled, as the direction in
40
which the. type-shank 33 is inclined from the
for all of the types, as the space between the
jaws 20I and 202 accommodates the shanks 33
perpendicular determines which of the two ejec
tor-?ngers I05 and I03 is to engage the type ?rst,
regardless of the angle between shank 33 and
and also determines the curvature of the ?ngers >
After the scoring operation, the scored type 30
is placed in a vise 2I5, Figure 21. This vise con
sists of two jaws 2I6 and 2I1, the upper ends of 45
which are shaped to form the clamping surfaces
2I8 and 2I9, which are located at-the proper an
gle for clamping the shank 33 of the score type
30 to bring-the type-head 32 into» a substantially
I05 and I06.
‘In practice, four forms of ejector I04 are avail
able. The pick-o? ?nger under which the opened
die-head 55 passes depends on whether a left
hand or avright-hand form of type 30 is being
rolled, as previously explained, and one of the
pick-off ?ngers must pass closely over the jaw
of die 50, whereas the other must clear the opened
die-head 55, as illustrated in Figures 16 and 17.
The third and fourth forms of ejector I04 are
used with those types in which the angle between
55
tially continuous. Only one ‘type of vise is used
the ‘type-head 32 and shank 33 is nearly 90°, such
as the centrally-disposed types.
type-head 32.
.
horizontalposition. It is thus necessary to pro- I 50
vide ten or more different sets of vises, depend- ‘
ing upon the number of different angles required
between the type-heads and shanks. After the
type is inserted the vise is closed by means of a
cam 220, which is actuated by a handle 22I or
suitable means.
The die 50 remains open as the next quarter ' other
A pair of revolving milling cutters 222 and 223
turn of die-bed I I8 brings die 50 again to station '
A, at which point a new blank 12 will be inserted. mounted on a horizontal shaft 224 and spaced
While the above description is based upon one a distance apart substantially equal to the re 60
60
quired width of the type-head 32 travels across
blank and‘die, passing from one- station to the
next, it is understood that the revolving die-bed
II8 carries four or more dies 50, into each of
which a blank 12 is inserted when reaching sta
65 tion A. The rolling operation is therefore almost
the type-head and straddle-mills the sides there
of. The wings 45 and’ 46 of the scored type 30,,
if not knocked off during the handling of the
type after the scoring operation, will be removed
with the exception of the initial insertion of the
blank 12 into the die, which, although usually
performed by hand, may be accomplished by the
The vise is then opened by means ofv the cam
220 and the handle 22I, the milled type 30 re
moved and a new score'd type 30 inserted.
,The side milled type 30 is then placed in a
continuous, with the entire operation automatic,‘ during this milling operation.
701 use of a conveyor.
The rolled type 30 (Figure 18) is then removed
from the receptacle I95, and the type-head 32 is
placed between jaws 20I and 202 of a vise 200,
which is located on the wheel 203, Figure 20.
75 ‘The vise grips the gaging shoulder 43 and the lugs
suitable holding ?xture, and a pair of revolving
form cutters 225 and 226, Figure 22, beveled to
the-angle required and spaced the proper dis
tance apart to accommodate the length of the
type, travels across the face of the type 30.
65
-
.
a,11o',s4'1_
.
These cutters formthe end bevels or chamfer's/ right-hand nxed gage ‘I at Figure 3. But those
ll, indicated on‘ Figure 6.
.
typesmay
that be'beveled
areon-thei-opposite‘side
on‘the side'whlch
of thew
The beveled type 30, Figure 23, is then placed line,
in a suitable vise (not shown), the jaws of which
clamp the shank u of the type in such a posi
~ tion that one side of the type-head '2 assumes
the proper angular‘ relation required for the cor
with the left-handiixedgage ll.
'
V
‘To form thesetbe’v‘els llevtheclearanee-milled
type 80 is ‘clamped in‘ a holding ?xture or vise‘,
220;""as indicated in
" a pair ‘ofi'inilling'
rect 'milling of the guiding lugs 80 and ‘I; as at cutters‘?l'mounted on ‘ac-revolving: horisontal
80' and 40', Figure 6. vIt is necessary to provide shaft (not shown) andspaced the proper dis
10 vises with ten or more'clamping angles, depend tance apart vto provide'the necessary"clearance
“ inglupon the number of angles required between between the upper and lower notches" and "I. l
the type-head and the shank of the types in each of‘the guide ‘21
These-‘cutters 281 are
machine.
I
a
A pair of milling cutters 221 and 228 mounted
~15 on a revolving shaft 22" and spaced the re
quired distance apart‘ then'travels across the
side oi‘ the type-head 32 and mills the two guide‘
lugs "and 40 atthe ends of the type.
-
The distance ‘from the center of the type-head
20 32 to the edges of the lugs 82 and “is the
same for all‘types, so that as the edges of the
lugs strike the edges ll of the notches in guide
31, the type will be brought into the correct
printing-position of the- platen 2|.
-
._
After the lugs It and 40 are milled,»thelug
milled type III isplaced in a suitable punch-press
(not shown) ‘where the holes 41, Figure 6, are
punched into the shank." for attaching the
type 20 to the type-bar 24. Instead or punching,‘
30 the holes may be drilled in~a conventional drill
- press using single or multiple‘ drills.
After punching, the punched type 2. is placed
between 'jaws 228 and 220 of a vise .2", as ing;
dicateddn Figure 24. The Jaws 22! and 280 of
35
the vise have two faces 222 and-221 forgripping
brought againstthe sideof‘thc type II. “the
bevels llaaremill'ed at the two ends of
tothe‘depthrequired;
'
1"
9
‘
..
The end-bevelledtypeil is placed in about!‘
is
device of a suitable character, and the liolul'glv
countersunkon one side'of the shank‘ .22. This
counter-sinking operation‘iis ‘performed on all of
the types, in the conventional manner ona drill-‘
press or other suitable machine, usingeither a
single or multiple countersink.
*
Arte‘ cmmtel'?nunl the hbles, burrs raised at
vanou‘ mint‘ 0" the. $7998 by the rm"
chining operations are removed by hand-?ling
in the conventional ‘manner, using various sites
and shapes ofliiles or abrasive
"
" ‘
in In
assembling'typewriters,
order to facilitate the some'or
location of
all of ‘them
bear a distinguishing number. Thislnu'i'nber is
either stamped} or etched; on one'side of the
shank 23.
1
The types, after the machining operations are
completed, are then ‘heat-treated in the ‘convu
tional manner
to'the art in‘order to hard
the shank 133 of the punched'type 20." At the _ en them. The exact heat-treating process varies
top of one of, the jaws 210 there is a shoulder considerably depending upon the steel used in
234 which engages the shoulder “of the type
II and maintains the type-head 32 in its correct
40
position.
i
'
~
the blank and the
in ‘the types.
with"
:After
chromiumycadmium
they are‘ ‘finished or
the‘other
typessuitable‘ ma
A pairyoi' milling cutters”. mounted on alre- ' terial.‘ This Plating is performed by’using either 40
volving shaft (not shown), as indicated ‘in Fig
an electroplatingjorqother suitable process, to
ure 24, and spaced the required distance apart.‘ ' protect the suri'ace's‘oi' the type
is brought againstthe type-head 82 in order to I While the sequence of» operations indicated
45 mill out the clearance 48 at both endsvof the herein maybe followed in the process ofvinak'ing
type 30. All of the types are clearance milled, the types described, the relationship of them
but as the amount of clearance required varlm chinlng steps to one another is such that this sc
‘ 'with the different types, the movelnent‘y'ofv the ' quence‘may be altered‘in‘ a number of ways de
cutters with relation to the type-head is adjust
50 ed to obtain the proper clearance.
The same
vise may be used for all types, regardless of the
pending upon thefacility for handlingithe parts
in the'machin‘e-shop. ‘The stepsmay thus be re
7 arranged, or'two or more steps may be combined
angle‘ between the shank'and head.
_ ~ ‘ _
'
in‘ one machine onset of “machines, or be per
- In the central types '36‘ and a similar set of - formed ‘in “one holding device, to produce‘ the de
types located adjacent toland at the opposite siredv result, dependinghpon the Judgment of
55 side of the center ,line X-‘X of the typewriter (a
The invention is not - confined to types
‘9
total of eight types in the average machine), the thoseskilledinthepart.
I __
I,
one my
‘path of the type in traveling from its home typewriters,‘ for the
"invention
maybe
media
‘ position in the arc Z—Z to‘the platen ll ‘is very ' making. types for computing,‘ adding, recording,- .
nearly perpendicular to the vertical plane of the checks-writing, and “other machines." ‘
platen, as in type 36,‘ or the angle between the
plane‘of the platen 3i and the shank ll‘iof‘the
type is a ‘few degreesgless than 90', depending
upon the position of the type with relation'to the
‘center line X—X of the machine. v‘In order to
65 facilitate the vmovement of these central‘types
. when the sides of the ‘central vtype-heads, as 80,
come in‘contact with the edges 4i and ll- of‘.
The type-rolling motion hereinbefore described
may also be described as a rocking m'otiomor a
kneading motion, or other metal-working motion.
"Variations may. be resorted to within
of theinv'ention, and“ portions of the"
merits-maybe
without others: I
_
Ha‘ving'thus'dcscribed my invention, I claim: "
'‘
l.'In manufacturing, a set of typewriter-types‘,
the notches 42 and 42" in the center of the guide . '
31, the two ends at the side of these types are beveled slightly, as‘indicated at". in Figures 3 ‘
and 25.
The type'is‘beveled at the side~opposite
each 'type having a‘faceformed with atype
character, and alsoha'ving'a shank attachable
toa type-.csrrim,v the shanks'severally being dis 70
substantially as set forth, at different
the side on which the type is located with'relaé . anglesv with a; common. printing-plane’ for
tion to the center line‘of the machine in its nor- ._ types; the methddzof forming the type-charac- * ‘
mal position. In other' words, the type-bevel‘ 0"
iron the-side of the type which is gaged by ‘the
ter'io‘n each type and‘ at the same time establish
shank-angle, ‘said mm ‘mt . 7‘
9
2,110,347
cluding operating upon a type-blank, having such
shank, with a type-character-forming device
while holding said blank with said shank ?xed
at a certain angle to said character-forming de
vice, the several certain angles at which the
shanks of the blanks for the set of types are held
and ?xed relatively to the character-forming de
vice being the same as the several different angles
of the type-shanks with-said common printing
10
plane.
'
2. In manufacturing a set of typewriter types,
each type having a face formed with a type
character, and also having a shank attachable to
a type-carrier, the shanks severally being dis
posed, substantially as set forth, at different
angles with a common printing-plane for the
boss-formation, the said several angles by which
the shanks of the blanks for the set of types are
?xed relative to the character-forming stamps
being the same as the several different angles of
the type-shanks with said common printing
plane.
.
'
10
6. In manufacturing a set of typewriter-types,
each type having a head formed with a type-char
acter, and also having a single thin shank-?n,
the shank-?ns severally being disposed, substan
types; the method of forming the type-charac
tially as set forth, at different angles with a com 15
mon printing-plane for the types; the method in
which uniform type-blanks, such as 12, are used
ter on each type and at the same time establish
being in the form of a rod having a longitudinal
ing the companion shank-angle, said method in
cluding operating upon a type-blank, having such
shank, with a type-character-forming device
while holding said blank in blank-receiving
means arranged in a type-forming press to ?x the
shank at a certain angle to the character-form
ing device, the several certain angles at which
the shanks of the blanks for the set of types are
?xed relativelyto the character-forming device
being the same as the several different angles of
the type-shanks with said common printing
30
shank at a certain angle to said stamp, said die
also being arranged and used as a matrix into
which the stock is molded, by the character
forming ‘pressure of said stamp, to produce said
plane.
3. In manufacturing a set of typewriter-types,
each type having a face formed with a type
character, and also having a shank attachable to
a type-carrier, the shanks severally being dis
posed, substantially as set forth, at different
angles with a common printing-plane for the
types; the method of forming the type-charac
ters for the set of types and at the same time es
tablishing, for each type, the companion shank
angle, said method including operating upon
to produce the diverse types of the set, each blank
thicksection that constitutes stock for the head, 20
the remainder of the rod being in the thin form
of said shank-?n, said method including operat
ing upon the stock of each blank with a type
character-forming stamp while holding said
blank with said shank-?n ?xed at a certain angle 25
to said stamp, the several certain angles by which
the shank-?ns of the blanks for the set of types
are ?xed relatively to the stamp being the same as
the several different angles of the type-shanks
80
with said common printing-plane.
7. The method of producing type-blanks for
a set of typewriter-types of the character de
scribed, each type having an elongated stick on
one longitudinal side of which the type-character
is formed, and also having a single shank-form
ing ?n appendant \as a thin ?ange along the
under side of said stick, said method being di
rected to ?nishing the ?n to its final‘ thickness
while producing the blank, and therefore includ
ing rolling or drawing type-blank material into
a rod of L-shaped cross-section by suitable means
type-blanks, having such shanks, with type-char
devised to make one leg of the L of the ?nished
acter-forming devices while holding each blank thin cross-section dimension of said ?n, and to
in a type-blank receiver arranged to ?x the shank
of that blank at a certain angle to the char
acter-forming device, said method including the
use of a set of different angle-establishing type
bla'nk-receivers, one type-blank receiver for each
of the said di?‘erent angles.
4. The method as set forth in claim 3, the set
50 of types including certain pairs, in that the in
dividual types of a pair have their shanks dis
posed at the same angle to said printing-plane
but in opposite directions from the middle of the
set of types, one blank-receiver being used for
55 each such pair of types and being used reversibly
to point the shanks of that pair in said opposite
_ directions.
5. In manufacturing a set of typewriter types,
each type having a head formed with a type
character and also having a single shank-form
to ing
?n, the shanks severally being disposed, sub
stantially as set forth, at di?erent angles with
a common printing-plane for the types, each type
also having underneath said head a pronounced
65 boss-formation, such as 3!, It: the method of
forming said types from a set of blanks, each
blank having stock for the head and boss-forma
tion, and also having such shank-?n appendant
to said stock.'said method including workins
said stockv of a blank for each type with a
10 upon
character-forming stamp while holding the blank
in a blank-receiving die arranged to fix said
make the other leg of the L as a thickened stock,
such as ‘Ill, workable by means of stick and type 46
character-forming pressure dies while the ?n is
held at a certain angle in a die, the ?ns of the
blanks for the several types of said set being held
at diverse angles, as set forth.
8. The method of producing type-blanks for a
set of typewriter-types of the character described,
each type having an elongated stick on one lon
gitudinal side of which the type-character is
formed, and also having a single shank-forming
?n appendant as a thin ?ange along the under 55
side of said stick, said method being directed to
?nishing the ?n to its ?nal thickness while pro
ducing the blank, and therefore including roll
ing or drawing type-blank material into a rod of
L-shaped cross-section by suitable means de
vised to make one leg of the L of the ?nished thin
cross-section dimension of said ?n, and to make
the other leg of the L as a thickened stock, such
as ‘ll, workable by means of stick and type-char
acter-forming pressure dies while the ?n is held
at a certain angle in a die, the ?ns of the'blanks
for the several types of said set being held at di
verse- angles, as set forth, said rod being rolled
or drawn to a length affording a multiplicity of
the type-blanks, said method including cutting
up the rod of said length into said type-blanks.
‘
-
EDWIN THORELL.
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