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Nov. 19, 1946.
I
2,411,402
F. c. wENDT
TYPEWRITING MAcHïNE
`Filed. Jan. 25, 1945
.
2 Sheets-Sheet 1
i
¿7%
ORNEYS
Nov. 19, 1946.
2,411,402
F. c. WENDT
TYPEWRVITINC MACHINE
2 sheets-sheet 2
Filed Jan. - 25, 1945
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INVENTOR
BY
'
E' C. ¿UenCZ?
Éaßrímn r’
/Ãéa A Tron NEYs'
Y
2,411,402
Patented Nov. 19, 1946
_ UNITED STATE
s PATENT ottimi.,l
2,411,402
TYPEWRITING MACHINE
` Frederick C. `Wendt, Copiague, N. Y., assignor to
Royal Typewriter Company, Inc., New York,
N. Y., a corporation of New York
'
Application January 25, 1945, Serial No. 574,469
‘2 Claims. (C1. 197-153)
2
This invention relates to typewriting machines
and more particularly to equipment for mount
ing and feeding thin ribbons, such as carbon pa
per strips, used for example in manifolding op
»erations
It has been common, in known constructions of
this class, to mount rolls of such ribbon on spin
dles, axles or the like and to provide some sort
of special device for resisting rotation of the axle
or the roll core orjournal for preventing `over
throwing of the rolls and consequent feeding off
ings, in which:
writer equipped With roll mounting apparatus
ing shown in elevation‘and others in verticalsecn.
tion.;
.
Figure 2;
,
.
,
i
Q
Figure 4 is a vertical `section on the line 4-4
of Figure 2;
_
,
.
Figure 5 is a fragmentary top plan view oiïa
which dispenses with the necessity of using such
special retarding devices but which nevertheless
prevents inertia overthrowing of the ribbon rolls.
Another object of the invention is to provide
a roll mounting of the character referred to in
which inertia overthrowing is preventedby fric
tion of an exterior surface of the roll, preferably
its peripheral surface, resting directly on a
smooth, unbroken part of the roll mounting.
Another object of the invention is to provide
modified form of latch member and ribbon guide
and cooperating parts; and
`
`
Figure 6 is a fragmentary elevational view’ of
the latch member and ribbon guide shown .in
Figure 5 as viewed when looking in the direction
of the arrow a in Figure 5, ribbons being shown
in section.
.
,
f
Reference is made to the application of John
J. Kittel, Serial No.`589,406, ñled April 20, 1945,
in whichV is disclosed a typewriter ribbon roll
mounting having some characteristics in common
a roll mounting of the kind referred to which is
so constructed as to permit any one of a plu
with the .subject matter disclosed in the~present
rality of ribbon rolls to be removed without dis
application.
,
Another object of the invention is to provide
a typewriter ribbon roll mounting adapted to
support and prevent inertia overthrowing of rib
bon rolls not wound upon cores as well as the
`
Another object of the invention is to provide
a. ribbon roll mounting of the character referred
to in which the retarding or overthrow prevent
ing action decreases as the mass of the roll de
creases so that the retarding action will not be
unnecessarily `great at any time although the
inertia, of the roll decreases as its diameter and
weight are diminished by unwinding of ribbon.
Another object of the invention is to provide
a roll mounting of the kind referred to in which
a pan or the like for supporting a roll is provided
with vertical walls on opposite sides of .and im- ,
mediately adjacent the rol1 for maintaining the
i
A further object of the invention is to provide
a, ribbon roll mounting as referred to above
equipped with a top or cover which is so >shaped
and mounted that when moved to open position
it will remain situated close to the pan, resulting
in desirable compactness of the whole roll mount
ing structure.
,
.Figure 3 is a vertical section on the line 3,-,.-3 of
’ vide a simple and efficient ribbon roll mounting
roll properly positioned Within the pan.
.
embodying the invention in a preferred form;
Figure 2 is an enlarged scale rear view of the
construction .shown` in Figure 1, some partsbe
An object of the -present invention is to pro
more usual core-wound rolls.
.
Figure 1 is a fragmentary top View of a type
of surplus ribbon. ,
turbing the other rolls.
`
reading of the following detailed description, th
appended claims, and the accompanying draw
'
.
`The invention may be embodied in various
kinds oi- maniiolding machines or typewriters
constructed or equipped for >performing `mani
foldingoperations or other operations in which it
is necessary .to feed a ribbon from a roll carried
on the machine. Inasmuch as the invention re
) sides inthe novel ribbon roll Supporting equip
ment, and in the »combination of such equipment
with other parts which themselves may be of a
conventional nature, the drawings show the
known or conventional structure only partially.
Included in the illustrated known construction
is a typewriter main frame A on which a car
riage generally designated B is mounted for let
ter spacingand return travel. The carriageB
»comprises spaced end plates, one of which _is
shown at I, connected by carriage >frame mem
bers, one of which -is shown at 2. ,A platen >3
is mounted on Ithe carriage to be disposed behind
the work sheets and carbon strips or ribbons.
Ribbon mounting means R constructed inac
cordance with the invention is mounted onthe
rear of the frame A by brackets 4. Strips of
ribbon R1, R2, R3, R4, R5, R6, R7, Ra extending
from the ribbon mounting means R are guided
and fed along the Writing line by `suitable mech
‘
Other objectsV will >become apparent from a “ _ anism, such `for example as the ribbon guiding
2,411,402
3
and feeding mechanism disclosed in the patent to
Myers and Handley 1,890,547. As shown in Fig
ure 1 a bracket 5 mounted on the end plate I
provides a mounting for a Vplurality of guide fin
gers 6, 1, 8, 9, I0 and I I around which the rib
bons RL--R8 are trained respectively as shown
in Figure 1 and from .which theribbonsextend
to a front guide roller I2 also journalled on the '
4
sections 3l and 32. The section 3| comprises a
semi-circular pan carried by a bracket 33 which
extends rearwardly from the typewriter main
frame A and is braced by a member 34 attached to
the main frame A. The pan includes a bottom 35
of semi-cylindrical shape with a straight wall 36
extendingupwardly alongside ,the bracket 33 and
terminating` just 'below a horizonta1 lip 31 at the
bracket 5. A11 of the ribbons extend from the
top of the bracket 33. Partition walls 38 divide
guide roller I2 in front of the platen 3 along. io .the
supporting pan into a plurality of compart
the writing line thereof for being interleaved with ' ments for receiving the rolls rl-rû respectively.
work sheets (not shown) in a known> manner. L
" The ribbon rolls are supported on the pan’s curv
Mechanisrn for feeding the ribbons along the „
ingly dished bottoinwith their axes horizontal
and withltheir lower periphera] portions resting
platen writing line includes'a hand lever 'I3 piv
oted as at I4 on the bracket 5. Rockable withv the
directly on the pan bottom which provides the
lever I3 is a cam I5 adapted to cooperate with
suitable mechanism, for example mechanism as
sole support for the rolls. Ribbons Rl-R‘ï` are
led from therolls rl-rs respectively over the lip
shown in the aforesaid Myers and Handley Pat
31 to the guide rollers 6-I I as shown in Figure 1.
ent 1,890,547, for pulling the ribbons along the
The
pan side walls and the Vertical par
platen .writing line towards the operator’s right, 20 titionvertical
wallsv38 are located immediately adjacent
that i'sto the left as viewed in Figure 1. i The rib
the rolls r1~ï8 and maintaingthe rolls properly
bons may have additional tension imposed Kon
positioned
and out of contact with each> other,
them during operation of the lever I3 by mech
‘thus 1;‘.~reve1î1tingv rubbing of the rolls- againsteach
anism similar to that shownv in the Degener Pat
en_t `1,890,563. A pack of leaf springs I6 is 25
A cover 39 for the supporting pan 35 comprises
mounted onthe bracket 5 and each ribbon is ex
a
curved
part 45 concentric with the semi-.circular
tended between two adjacent _springs of the pack.
pan; a fiat part 4I adapted to extend over the lip
When> thellev’er I3 is rocked counter-clockwise, as
31, and side wallsr42 pivotedas at 43 onv the pan
-viewed in’Figure l; the cam I5 actuates a follower
35,
substantially atv the axis of the pan semi-circle.
vroller vI1 to rock a lever I8 pivoted as at I5 on the 30 _Flanges
Y 44 at the sides of the top fiat partg4I' en
braeket> 5. ' This pulls on a link 25 and spring 2I
gage
the
lip 31 to hold the flat Dart up enoughgto
to rocka lever 22 pivoted on a ñXed ear 23. A
other.
cam 24ifast with" the lever 22 is thereby rocked
against La spring arm 25 mounted as at 26 on the
Abracket 5,.thereby pushing the free end of the
arm 25 against and> compressing the pack of
4springs I5 and imposing a frictional drag on the
'
‘
provide a slit 45 between the lip‘31 andthe jñat
The ribbons R1~R6 >can be fed `freely n
through the slit 45 when the cover
39 is in closed
part 4I.
35
position.
g
.
,
~
.
When the »cover is swung to open position Vthe
curved part will swing under the pan bottom‘ so
ribbons. The drag imposed on the rubbons may
as to occupy a minimum space.
`
_be varied by adjusting a screw 21 threaded in a
`A
‘fastener
46
for
holdingthe
cover
39
inV
closed
postv 28'carried by the bracket 5 ¿and bearing 40
position includes an ear 241 Vpivoted _as at 48 on
against the pack I5.y
`
the cover 39, a latch part 49 adaptedfto extend
In operation,-when the end of a typed line is
under the pan lip 31, and a U-shaped ribbon guide
reached the lever,_I3 is operated to line-space the
part 5I) which normally guides the ribbons R’I-R8
work sheets and feed the ribbons R1-R8. When
to extend adjacentv and preferably above thepoint
a stop 29 on the lever I3 engages a stop -portion
of
egressof the ribbons R1 and R2` from the sup
3U on the bracket 5 the rocking of,V the lever is
port section 37|.>` Preferably the fastener 46 is pro
stopped and further pressure on the lever _moves
vided -v'vithaflnger piece 5IV which mayextend
the carriage B in the return direction, to the left
from the upper leg of the U'-sha'ped`guide part 5I).
asviewed in Figures 1 and 2.A rIfhe ribbons Rl-R8
K In operation when the feeding equipment pulls
will'then be slackened and'will assume the posi
"on lthe ribbons Rl--R6 to draw fresh ribbon from
tions indicated in dotted lines in Figure 2. When
"the rolls 1‘1-1'6 the latter will roll upwardly a
the next line is typedthe slack will be _taken up,
little on'th'e curvingly dished pan bottom and will
and Asubsequentoperationi of the feed lever I3-Will
slip
a little so as to allow ribbon to be drawn off.
draw more ribbon from the ribbon mounting
means R.
'
»
`
'
Y
Y Inl accordance with the invention a roll of rib
bon is vsupported by the means R in aV novel andA
very simple manner such that inertia overthrow
ing of the roll is checked so as to prevent un
The friction-between the roll'peripheries and the
pan Vbottom will prevent inertia' overthrowing of
the rolls and no surplus ribbon will be'unwound.
Thus the ribbonsy Rl-RG' extendingïfrom the
mounting section 3| will not build up to such
winding of ribbon in excess of‘that actually fed 60 lengths as could result in tangling and breakage.
When the pull on the ribbons isslackened by
by the ribbon feeding equipment, thereby elimi
movement of the carriage B in the return direc
nating danger of entangling of unnecessarily long
tion the rolls rl-erß will roll back'down `the in
stretches of unsupported ribbon. The: ribbon roll
clined vo‘rcurved part 'of >the pan bottom 35 to
is not journalled to rotate about a fixed central
axle in the usual way, but is rested bodily on a
their
Thenormal
roll supportfsection
positions shown32in isFigureV
carried
2. yby- a
supportfin the nature of laV pan, the friction be
hanger '52 secured> to one of the brackets 4 pre
tween the pan and an exterior surface of the roll,
viously referred’to. It includes a- semiècircular
preferably its peripheral surface, preventing un
pan-like bottom part 55 >witn anupstandingex
`winding rotation of the roll except when the rib
tension 54 terminating in ahorizontal -lip 55. .fa
bon is actually pulled, as by operation of the 70 partition
wall 56 ldividesthe’pan 53 intdtwo
yfeeding mechanism.
chambers which receive the rolls f77-¿T8 respec~
tively. A` topA 51 comprising a >curved 'part 55
`fo'rieight rolls rl-rß from which the ribbons , concentric with -"the semi-circular pan and> lflat
part 5,9 has sides 55 kpivoted as at Sion thepan
Eli-R8 respectively extend, and is -fo'rmed in two 75 V‘53.
Flanges vI52'onv the‘top' 51 engage the lip 55
"In 'the illustrative embodiment of the inven
tion the ribbon mounting means R has capacity
2,411,402
5
of the ribbons RIT-R8.
6
lines in Figure 5 the cover or top 39 will be re
to limit closing of the top 51 to a position in
which a slit 33 is left for permitting free passage
leased and the ribbons Rrl and Rs will be dis
placed substantially from above the pan 35.
It will be observed that the pan bottoms 35 and
,
The top 51 is equipped with a fastener 64 piv
53 are both smooth, unbroken and free from
joints in their lower portions on which the ribbon
rolls are supported. Consequently the friction
between the rolls and the pans will be substan
tially constant over all of the roll supporting sur
oted as at 65 and having a ñnger piece 65 and a
latch part 61 adapted to extend under the lip 55.
The rolls T7 and f8 are supported in the pan
bottom 53 with their bottom peripheral portions
resting directly on the pan bottom which pro
vides the sole vertical support for the rolls. The
action of the rolls 'rl-T8 in permitting feeding of
ribbon and preventing inertia overthrowing is
like the action of the rolls r1-r6 previously de
scribed.
face portions, which assures smooth, steady slip
page between the rolls and the pans.
The apparatus disclosed embodies the inven
tion in a preferred form but it will be understood
that changes may be made in the construction
and arrangement of the parts without departing
When it is desired to insert rolls in or remove
from the invention as deñned in the claims.
I claim:
1. In a typewriting or like machine, a platen;
and means for mounting two ribbon rolls from
them ~from the support sections 3i--32, the tops
39 and 51 are turned about their pivots ¿i3 and
El to uncover the pans 35 and 53. The ribbons
T7 and rs pass over the top or cover 39 and through
the guide part 59 on the fastener 45. When the 20 which two ribbons respectively extend for being
guided and fed along the printing line of said
fastener 46 is swung to releasing position, the
platen, said mounting means including two sec
ribbons rl-rß extending through the guide part
tions arranged in tandem so that the ribbon from
50 are displaced laterally to one side of the pan
one section extends past the other section, a cover
35 so as not to interfere with removal of a roll
from the pan 35. Thus, in one operation, the 25 mounted on said other section to move to open
position to enable insertion and removal of a rib
fastener 46 is released preparatory to o-pening
bon roll and to closed position, and a guide on
the cover 39 and the ribbons r" and 1B are moved
said cover adjacent the point 0f egress of ribbon
substantially clear of the pan 35 preparatory to
from said other section and through which rib
inserting a new roll or rolls in the pan 35.
Inasmuch as no axle or pintle extends cen
30
bon from said one section is trained for being
maintained in predetermined relationship to the
ribbon extending from said other section.
may be removed at any time without disturbing
2. In a typewriting or like machine, a platen;
the other rolls. The diminishing weight of each
and means for mounting two ribbon :rolls from
roll resulting from unwinding of ribbon causes
the frictional drag or resistance to slipping on 35 which two ribbons respectively extend for being
guided and fed along the printing line of said
the supporting pan to decrease in proportion to
platen, said lmounting means including two sec
the decrease in the tendency for the roll to over
tions arranged in tandem so that the ribbon from
throw. Thus unnecessarily great drag on the
one section extends past the other section, a cover
ribbons is prevented and danger of breaking is
40 mounted on said other section to move to open
minimized.
position to enable insertion and removal of a
In the construction shown in Figures 5 and 6
ribbon roll and to closed position, a fastener for
the top 39 is adapted to be held in pan-closing
securing said cover in closed position, and a guide
position by a modified form of combined latch
part on said fastener through which ribbon from
and ribbon guide member generally designated
68. The member 68 includes an ear 69 pivoted 45 said one section is trained, said fastener being
movable to a fastening position in which said
as at 10 to the top 39 and part 1l bent down at a
guide part constrains the ribbon from said one
right angle to the ear 69 and being formed with
trally through the rolls 1'1--r8, any of the rolls
section to extend over said cover and to a re
a finger piece 12. A latch part 13 is adapted to
leased position in which said guide part deñects
project under the lip 31 for holdingthe top or
cover 39 in its closed position and a U-shaped 50 said ribbon towards one side of said cover to
provide easy access to said other section whenV
guide part 14 is adapted to overlie the slit 45 for
said cover is moved to said open position.
guiding the ribbons R’I and R8. When the mem
FREDERICK C. WENDT.
ber 68 is swung to the position shown in dotted
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