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Патент USA US2408454

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' Oct- 1, 1945'
I
2,408,453
J. L. STIXRUD
SHORTHAND 'TYPEWRITING MACHINE
Filed Jan. 13, 1945
2 Sheets-Sheet 1
JOHNL. STIXRWB,
INVENTQR
I ATTORNEY? ‘
Oct. 1,- 1946.
J. L. STIXRUD
SHORTHAND TYPEWIR‘ITIING MACHINE
Filed Jan. _1s, 1945'
2, 8,453‘ ~
2 Sheets~Sheet 2
__
5%.
JOHN L . STIXRUD,
INVENTOR
ATTORNEY
Patented Oct. 1,
2,408,453
Y‘ UNITED - STATES ‘ PATENT OFFICE
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72,408,453
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SHORTHAND TYPEWRITING MACHINE
,
161m L. Stixrud, Los Angeles', Calif.
_
_ ' Application January 13, 1945, Serial No. 572,588
_ 11.0mm. \(01.197-9)' :
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' 1
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Thisinvention relates to certain ‘new and use
ful improvements in typewriting machines and
deals particularly with that type of machine
which is directed to phonetic writing whereby the
of Fig. 2,v
the use of codes
line 4-4 of Fig. 2_,
.
'
'
a
Fig. 5 is an elevational view showing an exag
'
to represent the missing let;
,
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Fig. 4 is a fragmentary sectional view taken on
spoken language may be‘ rapidly typed without
ters.
2
Fig. 3 is'a sectionalview taken on line 3—3
gerated forward position of thepivotal connec- ‘
.
The present invention embodies the broad prin
ciples outlined in my co-pending application ?led
'Novemlber 8, 1943, Ser. No. 509,514 but includes
certain modi?cations and ‘structural details by 1
which a marked improvement-in the operation<
tions between the printing members and the parts
v which actuate them. 2
~
Referring more in detail to the drawings, 10
designates side frame plates, each‘ having .leg
portions ll—ll by which the machine is sup- '
ported. Each leg may be offset as'at I2 with an
of the machine will be noted.--1
‘ The primary object of the present case resides
feet '- may be fastened.
in the simple yet eiiicient manner of‘initially
."Rotatably. mounted between the frame plates‘
aperture 13 therein to which'rubberv cushions or
selecting and then subsequently. printinglthe. se
key.
‘
‘
'
A further object resides in the mechanical con
plished. Directly in front of the platen I4 is a '
20 series of printing members 22, each having an.
able printing members by which the printing
arcuate. face, bearing type characters designated
l5, l6,- I‘I,,l_8 and I9. These printing members
are. actuated'from keys positioned at the, front
-mem'bers are properly positioned upon the 'de
‘
A still further object'of thevinventionresides'
in the novel manner of arranging the several
.
V
"25
keys on horizontal pivotswhereby a tilting ac- .
actuated in alikemanner a description of the ~
operation of one will ‘be suf?cientfor a clear un
derstanding of the complete operation of the ma- 7
' printingof the character when the'key. is fully ‘
depressed.
Another object of the invention resides in the‘
.,
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v
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._
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30
novel manner of coupling the action of two of
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chine;
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Each printing member “is pivotally connected
by means of Pins Hand 22 to the upper ends of
said keys to accomplish the printing. of certain
characters. I
of the machine'through the medium‘ of ‘longitudi
nally‘extendingconnecting' bar members. In
view of the ‘fact that-eachprinting member is
tion may be had to make the various selections:
of the desired characters and then to ‘cause a
V
Y
which supports the paper .or other strip mate
rial upon which the printing‘ isitov be accom-'
'
nections between the back keys and the mov
pression of the selected‘key.' ' '
I
l0 at the far» end of the machine is a platen M
lected character upon the depression of~the char
actered
'
arms 23 and 24 respectively. Pin 22 works in a
vertically disposed slot 22a in the arm 24. The '
>
A further object of the invention resides in the 35 purpose of the slot 22a is topermit. the arm .24
novel arrangement of letters and char'acters'to be I
to move at a, slower speed than the arm 23. As
printed.
will be noted the arm 24 is slightly longer than
These‘and other objects ‘will readily be pre- '
the arm 23, this being for a purpose-hereinafter
sented to those skilled in this particular art, when ~
the [following speci?cation is read in connection
with the attached drawings, wherein ‘like parts
are designated by‘ similar reference characters
throughout the several views.
'
'
described. The arm 23 has a forwardly extend
40 ing ?nger,v 25 while the arm v24 has a slightly
longer ?nger '26. Each ?nger and arm construc
tion just described constitutes arbell crank lever which is pivotally ‘mounted on the cross shaft 21
'
In the drawings I have illustrated the preferred
supported between the frame plates Ill-all]. , "
embodiment of my invention, but it is to‘be un 45 ' A cross rod 28 is also mounted within thev side -_
frame plates. Ill-l0 and is spaced forwardly‘ in
derstood that certain variations'ther'efrom may
be resorted to without sacri?cing any of the spirit ‘
of the present invention. ~
In the drawings: w
.
Fig. 1 shows a plan view
parallel ‘relation to thecross shaft 21. Pivotally '
mounted on’ the cross rod 28 are a series of pairs
'
of the machine, omit
50,
ting certain parts to show underlying .construction,
'
'
Fig. 2 is a side new with was of the'frame.
broken awayto more clearlyillustrate some of
the detailed parts of the mechanism,
‘
of key bars, said :bars beingv designated ;29-.;3?.
Each bar 29-30 has a relatively short, ?nger ex-,
I “tension'as shown at 3| and 32 respectively. The
?nger 32 ,which'connects with the, ?nger 26 is
slightlylshorter than 3| in order to impart a '
slower motion-.to the arm.“ and thus cause a
-55 horizontal movement of the printing member 20.
2,408,453
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4
the printing member to swing on the pivot 2!
when the pair of key bars- 29-30 are rocked
until the printing character l5 moves into the
simultaneously.
printing position.
Attached to the upper portion of each of the
arms 23 and 2A is a spring 33 and 33a, the oppo—
site end of each spring being respectively fas
tened to the hooks 3d and 3411. which are carried
by a cross bar 35. The tension of the springs
Sit-33a results in the return of the operating
bars to their normal set position after each oper
ation. The key. bars are limited‘i'n' their return '
movement by a pad element 36 which is carried
by the cross support 51.
The pivotally mounted bell crank levers. on I
the cross shaft 2‘! are separated by spacers-38
and also the ‘bar elements which are pivotally
The continued downward
movement of the key bar causes'the underside of
the key plate to contact with the underlying part
49 of the adjacent bar and therefore couples
both bars 29 and 30 in their action which results
in the printing of the selected character.
The printing of any of the characters in the
second line of the row A of keys is accomplished
by'pressing on the key over‘ the selected char~
acter. The initial portion of the downward
movement of the key bar swings the printing
plate ‘to move the printing character it into
printing position. The key plate then contacts
the underlying portion 40 of the adjacent key bar
and the ?nal portion of the downward movement
The key bars 29 and 33 each have a T shaped‘ 7' of the key bar results in the forward printing
movement‘ of the selected character.
arm extending upwardly from their forward end.
When pressure is applied to two keys at their
The adjacent inner endsof these arms are ar
adjacent
inner edges both key bars are actuated
ranged. in' overlapping relation as suggested (at
in. unison which results in the Printing of the.
40 and ‘lea. The opposite ends of these-Tarms
supported on the cross rod 28 are separated by
spacers
t9.
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are formed with a bevelled upper surface M—llla.
The medial portions of these T arms have a ?at
surface as indicated at ill-42a, Key plates
éd-t?a are pivotally attached as suggested at
charaeters 1.1 on the printing member.
Theprinting of the characters the'line ‘2 cf.‘
row. 13 ‘(33, .K._.'G, L, etc-l is-accomplished by-0p-
crating the keys. in 'just the same manner as.
lid-4M to the T arms so that they normally rest
on the flat surfaces Q2—42a.. The under surface
that described in connection with line i of row
Ail-fella extend beneath the key plates 43a and
43 of the opposite key bar.
with line 2 of row A and results in‘the printing
A and results in the printing of the character at
[9 being printed, and the printing 'of the Char-1*;
of each key plate 43-4341 which overhangs the
.R. etc-i is by
bevelled surfaces lit-Ma may be padded with a 30 esters in line I .of row 3 (F. C,
the same action as that described in trialled-i011v
sound reducing material; The overlapping ends
As will be noted from the illustrationsuggested>
in Fig. 1 the key plates stand £3311 are attached
to the upper ends of the key bars 29 and El] and
are arranged in two rows, designated A and B.
In advance of these rows A and B there is also
shown a third row as indicated at C. These last
mentioned keys are coupled together transversely
instead of longitudinally as suggested in keys A
and B, but their action is practically the same in
the operation of the typing members.
.
The key bars leading to the keys in row C are
designated Al?—4l. The forward ends of these
barshave an upwardly extended portion 48 upon
which a key 49 is pivotally mounted atpll‘ért. The -_
upper: surface of't'h'e portion€1l8 forward‘of'the,
pivot'is bevelled as at 58.
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The bar 46 has an angular extending arm '51 >
while the bar 61 is bent as indicated at 52. The
keys are each provided with a forwardly proe
jecting ‘arm 53 which extends over the angular
arm 5! and the bent portion 52. The bar 41 is
widened at 54 with a flange 55 at the upper end
and a flange 55 at the lower edge, as shown in .
Fig. 3. The bar it has an‘inwardly directed
bearing 51 which is positioned ‘medially between
the flanges 55 and. 55.
‘
The general operation_ of the-machine is as
follows: The ‘initial movement of the key bars
merely causes a movement of the printing mem
ber to select the character to be printed and the
?nal downward portion of the bar movement coll
ples the adjacent bar to'cause a forward move
ment of the printing member which results in
the printing of the character. A more detailed
description of the operation is as follows.
Any of the characters in the ?rst line of row
character at is being printed.
I
y
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The printing of the characters on row C of the
key plates" will now be described. ‘To print the
character U the Operator presses on the key plate
over this character. The initial portion of the
downward movement of the key bar swingsthe
printing plate to move the printing character it
into printing position. The arm .53 then contacts
the arm 5| and the ?nal portion of the downi
ward movement of the key bar results in the for
ward printing movement of the selected char- .
acter. ,The application of pressure over the Y
character results in the selection and?nal print
ing of. thecharacter' .on line‘ 16 of the printingvv
member.
'.
p
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Pressure on. the key plateover the character A
will cause the'keyv'pla-te to tip liftingthe arm
.
vinto a higher position above the arm 5L1 The
purpose of the tipping-is to get the arm
out
of the Wayto permitthe key bars to be operative
ly‘connected by means of the ?anges 55- and to
and the bearing 51.
Thus when the pressure is
applied over the character A the key bar will
move downward causing the printing member to
move the printing character l9 into printing po~
sition. The flange 55 then contacts the bearing
5! .of the adjacent key bar and the ?nal portion
of the movement of the key bar results in the £01"
Ward printing movement of the selected char
acter. The applicationof pressure above the
character E will cause the bearing El to move
downward causing the letter'which appears in
_.line lion the printing memberto move into
printing position. The bearing 5'! new contacts
the flange 5.6 of the adjacent keybar and the
printing of the selected character-results. When
both keys are pressed by straddling them with a
thumb or ?nger .the character ‘I,’ which is. ar
ranged in line H on the printing member will
be impressed against the paper strip on the
A of the keys may be printed by depressing the
key plate at a point directly above-the charac._
ter. This results in the pivotal movement of the
platen.
key plate and when the plate contacts with'thei
In a shorthand machine equipped with my key- '
bevelled surface of the key bar, that ‘particular
key bar starts downward movement which causes 75 .board where a multiple selective printing is ac.
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2,408,453
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complished by the .co-action of , two keypla'tes
then, actuating bothof said bars simultaneously
certain requirements mustbe met in the arrange-'
ment of the letters, numerals and characters to
to subsequently move‘v the. printing member for
ward to print the selected character, said print
ing member and said pair of actuatingbars be
ing, so constructed and arranged that theinitial
actuating ‘ofsaid one of said bars causes aslower
motion .of said printing member than the subse
quent motion moving the printing member for
insure easeof operation and a simple. method of ‘
writing. .As a'plurality of types are vattached tov
one ‘ printing member it is important that none
of these letters so placed will appear together
when writing words or syllables. Thus S, _T,.and
ward to printing position.
.
R must appear on different key units while. V,
3. In a machine of the character described,
S, .F, B can safely be attached to one and the 10
comprising a plurality of printing members each
sameprinting member as they do not form com
bearing a series of printing characters, a pair.
binations when writing words and syllables- This
of actuating levers each having a pivotal cone
method of arrangement has been carried out
throughout the keyboard. 1, To promote ease" of
nection with a printing member arranged there
writing awkward ?nger positions must be avoided.
Letters appearing in'the extreme rows should not
be printed at the same time. The ?rst row is
therefore reserved for numerals. The letters in
'between whereinone pivotal connection is ver-v
ticallyspaced-above the other, a pair ofkey bars
each operatively connected to one of said actu
ating levers. and a plurality of keys coupled in
pairs to actuate the key bars ?rst individually to
the ?fth row seldom if ever appear in combina
tions with letters in the second row. The letters 20 cause an initial selection and then jointly to
most frequently used and which form combina-.
cause a ?nal printing of the characters on said
printing member.
tions are found in the three central rows and re
quire only a slight movement of the ?ngers in
operation. The ?fth key unit from the left is
not used in phonetic writing to avoid unnecessary
movement of the left hand. The two units of keys
reserved for the vowels are so arranged that a
4. The subject matter of claim 3 and, said keys
and key bars being constructed and arranged in
such a manner that an overlapping connection is
provided between one key bar and the key of the
other key bar.
‘
complete series of vowel sounds can be expressed,
removing any chance of misreading a word.
5. The subject matter of claim 3 and, the bars
comprising, each pair of key bars having an over
What I desire to claim is:
'
30 lapping connection for joint action after a pre
determined movement of one of said bars.
1. In a shorthand typing machine consisting of
6. In a typing machine consisting of a plural
a plurality of printing members each having a
ity of printing members each having a series of
series of printing characters, each of said print
characters peripherally spaced on its surface, a
ing members having a pair of pivoting points
plurality of actuating levers arranged in pairs
placed vertically one above the other and where
in the upper of said pivoting points consists of
with a printing member therebetween, said levers ,
being independently pivotally connected to said
a" Vertically disposed slot, a plurality of actuate
printing membenand means for actuating one of
ing bars arranged in pairs with a printing
said levers to select one of the characters on the
member therebetween, one of said bars of a pair
printing member and then actuating all of said
being pivotally connected by a pin to said print
levers to subsequently move the printing mem
ing member at one of said pivoting points and
ber forward to print the selected character, the
the other bar of said pair being pivotally con
pivotal connections between said levers and print
nected by a pin to said printing member at the
ing member being spaced one above the other and
other of said pivot points, said pins and said pair
of pivoting points constituting a coacting con 45 the pivot of one pivotal connection occupying a .
vertically disposed slot.
nection between each printing member and its
pair of associated actuating bars whereby each
7. In a machine of the kind described, com
prising a plurality of printing members each bear
bar acts as a shift key in its initial movement and
ing a series of printing characters, a pair of
as a printing bar in its ?nal movement, and
means for actuating either one of said bars to 50 levers an arm of each of which has a pivotal
connection with a printing member arranged
' select one of the characters on the printing mem
ber and for then rocking said key bars simulta
therebetween, the pivotal connection between one
arm and the printing member being vertically ar
neously to subsequently move the printing mem
ranged above the other pivotal connection be
ber forward to print the selected character.
2. In a shorthand typing ‘machine consisting
tween the other arm and the printing member, a
of a plurality of printing members each having a
pair of key bars each having a connection with
a ?nger of one of said levers, and a plurality of
series of printing characters, each of said print
keys coupled in pairs to actuate the key bars and
ing members having a pair of pivoting points
in turn the levers individually through the me
placed vertically one above the other and where
in the upper of said pivoting points consists of a 60 dium of' said ?ngers to cause an initial selection
vertically disposed slot, a plurality of actuating
and then jointly to cause a ?nal printing of the
key bars arranged in pairs with a printing mem
characters on said printing member.
8. The subject matter of claim 7 and, said
ber therebetween, one of said bars of a pair be
keys and key bars being constructed and arranged
ing pivotally connected by a pin to said printing
member at one of said pivoting points and the 65 in such a manner that an overlapping connection
is provided between one key bar and the key of
other bar of said pair being pivotally connected
by a pin to said printing member at the other of
the other key bar.
said pivot points, said pinsand said pair of pivot
/ 9. The subject matter of claim 7, and said key
ing points constituting a coacting connection be
bars each having an overlapping connection for
tween each printing member and its pair of as 70 joint action after a predetermined movement of
sociated actuating key bars whereby each bar
one of said bars.
10.- In amachine of the kind described, com-v
prising a platen, a plurality of printing members
each provided with a, plurality of types arranged
for actuating either one of said . bars to select
one of the characters on the printing member and 75 in a vertical position facingsaid platen and mov-v
acts as a shift key in its initial movement and ‘
as printing bar in its ?nal movement, and means
2,408,453
7
able in a horizontal direction to cause said types
to print on paper supported by said platen, said
printing members each having two independent
pivot points a line drawn through which extends
parallel to the printing line of said types, a pair
S
11. In a shorthand typing machine consisting
of .a plurality of printing members each bearing a
series of printing characters, a plurality of key
bars arranged in pairs and connected to said
printing members, the bars in each pair having
an overlapping connection for joint action after
of key bars, a plurality of keys coupled in pairs
a predetermined movement of one of said bars,
to actuate the key bars individually or jointly to
and key members associated with each key bar,
initially select and subsequently print vone of the
said key members being arranged in a parallel
types on said printing member, and connecting
means between said key bars and each printing 10 closely spaced relation transversely of the ma
chine whereby transverse parallel adjacent
member to perform the function ascribed to ac
edges thereof may be simultaneously depressed at
tuation of the key bars, said connecting means
their midlength portions by a ?nger of the op
comprising a pair of bell crank levers one of
erator to cause the printing of one of the char
which has an arm pivoted at one of said pivot
points and the other of which has an arm piv- 15 ' acters of the associated printing member.
oted at the other of said pivot points.
JOHN L. STIXRUD.
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