US1537147A - Typewriter - Google Patents

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US1537147A
US1537147A US431698A US43169820A US1537147A US 1537147 A US1537147 A US 1537147A US 431698 A US431698 A US 431698A US 43169820 A US43169820 A US 43169820A US 1537147 A US1537147 A US 1537147A
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bar
type
printing
carrier
typewriter
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US431698A
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Smith Joel
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed

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  • My invention relates to improvements in typewriters, and it consists in the constructions, combinations and mode of operation herein described and claimed.
  • One of the ;foremostobjects of the invention is to provide a typewriter with provisi on for carrying capital and small letters of a plurality ofstyles of type, with means for readily shifting from one style to another without doing more than merely moving a small handle.
  • a further object of the invention is to provide a typewriter wherein oneof the important"i,eatures centers on the compound joint at'which four printing keys are gathered and so arranged that their levers may operate on one type bar in such a manner that the desired type or character may be imprinted on the paper.
  • a further object of the invention is to.
  • a further object of the invention is to provide a typewriter of durable yet simple construction, the former virtue being obtained principally through theuse of large open parts permitting light yet strongiconstruction. 7
  • a further object of the invention is to provide a typewriter wherein the working parts are covered so as not to distract the attention of the operator, and wherein there is increased visibility in writing, since the printing line is tilted toward the operator.
  • Figure 1 is a plan view of a typewriter Figures 6 and 7 are cross sections on the lines 66 and 7-7 of Figure 5,
  • Figure 8 is a detail plan view. showing the rotary type bar in place in its holder.
  • Figures 9 and 10 are cross sections on the lines 9-9 and 1010 of Figure 8,
  • Figure 11 is a side elevation illustrating the first bar carrier in place on the holder of one of the rotary type bars
  • Figures 12, 13 and 14 are detail cross sections as for example on the line 1313 of Figure 5, illustrating various shapes of the type head whereby one, two and three complete sets of type may be employed in the machine as conditions may require,
  • Figure 15 is a longitudinal section taken substantially on the line 15-15 of Figure 1, illustrating the type-shift mechanism
  • Figure 16 is adetail plan view of the eleven retrieving springs and the spring base to which therear ends are adjustably secured
  • Figure 17 is a detail elevation of the type change mechanism
  • Figure 18 is a detail view illustrating modification in the manner of connecting the hangers to the key levers
  • Figure 19 is a longitudinal section of a typewriter constructed in accordance with struction of'type bars
  • Figure 20 is a detail cross section on the line 20-20 of Figure 19, and
  • Figure 21 is an enlarged sectional view illustrating more clearly how the heel of the bar carriersjare locked together.
  • Ribbon spools 4 and 5 feed a ribbon across the printing point on the platen 2, with the I doing so by this cover.
  • the first cover acts as a catcher for the'erasings falling from the platen 2.
  • the second cover 7 shields t e type'bar in a measure from dust falling directly thereupon, but performs the more important function of concealing the working arts from the eyes of the operator, thus ena ling him to concentrate on the printingpoint which appears directly in the line of hisyision above the upper curved ed e of the cover or shield 7.
  • stop pad 8 semi-circular in shape to conform with the general layout of the type bars, and made of. some suitable soft material, provides a stop for the flanges of the various 'type bar holders as they are depressed tothe printing position upon actuating the various printing keys. It is from the position last assumed by a type bar holder, i. e. when it abuts the stop pad 8, that the type bar itself departs by virtue of its own momentum into engagement with the platen 2, to produce the ultimate printing act.
  • a rear lock 9 of a semi-circular toothed construction catches the various type bar holders as they are depressed into the printing position, so as to insure the stabilizing of the holder as the type bar departs therefrom to produce the type impression.
  • a front bar lock 10 with which parts of the type bars cooperate. It has lock teeth 11 and 12 as shown in Figure 9, there being a particular tooth formation as illustrated in Figure 9, for each of the eleven type bars.
  • the front bar lock 10 extends in a semicircle around the front of the machine, being fastened at 13 t0 s0me convenient part as for example, the shield 7 and at 14 to the brackets 15 which supportthe shield itself.
  • Extending along the same semi-circle with the front lock 10 is the shift rack 16, of which there is a fuller description under the fifth subject below. Briefly stated though, a slight movement of this shift rack simul taneously changes the letters of all of the type bars, as for example, from small'letters to capitals, with so little sound that it cannot even be heard by the operator..
  • FIG. 5 to 14 It has a rectangular type head 28 at the rear end.
  • the type head is squareincross section, as shown in Figure 13, and on each of the four faces of the head, there are four characters 29, 30, 31 and 32.
  • Two different styles of type are to be accommodated by the four faces ofthe head 28; both small and capital letters of each style.
  • one style may be that of the well-known typewriter characters, while the other may be in old English or small pica.
  • the charactersrepresented are controlled by the longitudinal row of printing keys 33, 34, 35 and 36.
  • More or less than two styles of type may be carried by the type bar .20.
  • the cross sectional face of the head 28 will then vary in accordance. When only one style of type is carried, the head will triangular in cross section as in Fi re 12, so as'to provide two faces for the ca ltal and small letters, When three styles type are to be carried, the cross sectional face of the head will be-he a agonal as in Figure 14, so as to provide six faces, two for the capital and small letters of each style respectively. On the same printate'd to change from small to capital letters of one style of type. Beyond a fixed point, every other one of the teeth of the pinion is removed to leave four lock teeth 39, running true with each of the four type faces of the head 28.
  • the type bar holder 40 has trunnions 47 fixed therein and projecting at the 2 sides, the-collar 48 forming-the bearing for the first bar carrier 43, the pintle 49 extending into the adjacent side of the second bar carrier. 44.
  • a stud 50 fixed in the sides of the carrier 45, provides the bearing for the second carrier 44.
  • a stud 51 - fixed in the sides of the carrier 46, forms the bearing for the third carrier 45.
  • the fourth carrier 46 is pivotedat 52 on the U base bear ng 53 whlch is secured at 54 to the bar joint base 55.
  • connections are made between the printing keys and bar carriers .by links 56, 57 58. and 59, the order of connection being that of the numerals.
  • the printing key 33 in the third bank from the operator, is connected to the first bar carrier 43 through the link 56.
  • the printing keys 34 and 35 follow in order, being connected to the second and third carriers 44 and 45 through the links 57 and 58, the last carrier 46 being connected with the uppermost printing key 36 through the link 59.
  • a modification of the manner of connecting the links to the key levers, is illuslinks may be depressed as outlined above, without disturbing the key levers.
  • a retrieving spring 68 returns the type bar 20, and all appended parts, to the normal position against the felt or rubber sound-absorbin pad 69 with which the shield 7 is faced on the inside.
  • the spring 68 is long and thus applies an easy tension on its type bar.
  • the rear end is connected to the spring base-70 through the link 71, the front end being connected to one arm of the pivoted spring crank 72 from the other arm of which there is a spring connecting link 73 extending to the yoke 44, the latter in turn pivoted to the front of the holder guard 41.
  • Adjustments in the tension of the spring 68 may be. made by inserting the link 71 in the various ones of the radial holes 75 in the spring base. There may also be an adjustment of tension of all retrieving springs by providing the ring base 70 with slots in which the holding screws are set, enabling sliding the base back and forth as may be required.
  • a piece 76 risingup from the sides and extending across in the shape of a shoulder 77 provides a stop for the key levers as they rise to the rest positions.
  • Lengths of small, steel wire 78, extending between the shoulder 77 and base of the piece 76 provide spacers betweenthe key lever and materially aid in reducing friction by keeping the levers true to their positions, since they run rather close at the points' where thespacers are placed.
  • Key lever retrieving springs 7 9" are located -near the pivots at the back.
  • a slotted guide 80 embraces the key levers where they drop lowest beneath their ivotal points, so as to keep; the levers in. t eir correct. positions.
  • the printing operation 7 may now be more readilyunderstoodf N ormally, the machine prints small letters, it
  • the spacing mechanism is now supposed to operate, presuming that the key 33 has been released.
  • strike the key 34 This moves the lever 64 on its pivot, draws down the link 57, together with the second bar carrier 44 to which it is connected, thus rocking the parts on the second pivot 50 and causing the second character on the type head 28, counting down from the top, to en age the platen 2 at the printing point.
  • Thls character is the letter In the first instance, the bar carrier 43 carried the holder 40 and type bar 20 with it. In the second instance, the bar carrier 44 carried the carrier 43, holder 40 and type I bar 20 with it.
  • the lever 65 Upon striking the key 35, the lever 65 will draw down the link 58 and its bar carrier 45, moving the carriers 44, 43, the holder 40 and type bar 20 beneath it.
  • This third printing operation brings the third pivot 51 into play, causing-the third character on the type head 28 to strike the
  • the variouspivots are progressively nearer the platen and through this arrangement the various characters are made to engage at the printingpomt as they are brought into operation'- The same principle of operation prevailswhen the key 36 is struck.
  • the carrier 46 being ac tuated by the link 59 and lever 66, carries three bar carriers beneath it, together with the holder 40and type bar 20.
  • the pivot 52 which now comes into play, being. nearest the platen 2,,causes the lowermost charactor to engage at the printing point.
  • the shortest lever 63 of those in the three banks mentioned has the longest link connection 56 to the first bar carrier 43.
  • the next longest lever 64 has a little shorter linkconnection 57 to the second carrier 44, while the lever '65, longest of all, has a still shorter link connection 57 to the third carrier 45.
  • the increased leverage serves to equalize the increase oi weight of parts operated.
  • a shaft 87 extends from side to side of the frame 1, being mounted in bearings 88,
  • crank 89 to one arm of which the left shift *key 84 is pivotally attached, and to the other arm of which the connecting strap 90 is likewisepivotally attached.
  • crank 89 is formed with across strap 91 from which a crank arm of the other shift key 84 extends since the strap goes across the machine to the right side.
  • the stop 93 of the strap 90 works between the pads 94 of stop studs 95, which are part of a block "96 secured to a part of the frame.
  • the re trieving spring 97 connected between a lug 98,fixed on the block 96 and a suitable lug on the strap 90, holds the stop 93- against the upper pad 94and keeps the shift keys 84 in the uppermost position'in readiness to be Depression of one of the shift keys 84 causes a movement of the shift rack 16 to the right consequently rolling all of the type bars toward the right the distance 'of two teeth, bringing the right type face under into the printing position.
  • This right type face is composed of capital letters of the style of type now in use, for example, small
  • the retrieving spring 97 restores all parts to the original position, the type bars being then rolled 90 toward the left to present the small letters to the platen as before.
  • the type change action is produced by lifting thetype change latch 99 from the now-alimng notches 100, 101, in
  • stop means 99- which may consist of a screw the shank of which passes-through a slot 100 in the rack.
  • type bar carriers 48, 44", 45 and 46 is preferable in a model of this machine, having a short bartravel, as for example, in models carrying from two sets of type down to one set, the construction of bar carriers described in the first form of the invention; being more-particularly adapted to'models of three or more sets of types.
  • the bar carriers instead of locking the bar carriers together at the top, as clearly shown in Figure 2, the bar carriers now extend toward the back of the machine from the crank connections of the hangers 58, etc., by which the key levers etc. actuate them, onlythe top. carrier 43' remaining extended position.
  • the comgound ]01Ilt now takes the shape of a fis -hook, the shorter end being the lower part, where all carriers crossover from side to side in continued connection, 43 bein underneath, 44
  • T1118 lock comes torest against the ad 105 of the stop plate 106, the points of t e superposed carriers at the lock being slotted at 107 in Fi ure 21, to engage the lock piece 108.
  • the innermost carrier 43' is seen to have laterally extended flanges 109 on which all of the other carriers rest'.
  • the construction is lainly shown in' Figure. 20.
  • the concentration of types on the type bar is also of importance,-because it enables bringing the operating parts closer together, and so make a more compact machine. It
  • thetype heads 28 canbe made in three or more faces, thus accommodating one or more complete sets oft e'.
  • a typewriter including a type bar with l a series ofcharacters, a plurality ofbar'carriers pivoted to each other but progressively nearer the printing point, and a plurality of printing keys respectively in connection with the various carriers, for moving the type bar on any of the pivots accordingly as the keys are depressed causing corresponding characters to strike the printing point.
  • a typewriter including a type bar with a series of characters, means equal in numbar to that of the characters for individually throwing the type bar farther to cause the respective characters to strike at the printing point, said carrier means being mutually interlocked to prevent side play; and an equal pluralitypf printing keys with individual connections to the respective carriers.
  • a typewriter including a type bar with a series of characters, a plurality of members by which the type bar is supported, pivoted upon each other at places progressive] nearer the printing point; an equal plura ity of printing keys, and separate connec tions from the individual keys'to the respective members, accumulatively moving said members on progressively nearer pivots to variously advance individual characters to the printing point in accordance with the printing key selected.
  • a typewriter including a single type bar with a plurality of characters, an equal plurality of means for depressing the'bar to print by the respective characters, an equal plurality of-printing keys with successively longer levers, and an equal plurality of conneotions between the lovers and carrier means, of successively lesser lengths as they join successively longer levers for the purpose of compensating in leverage the increase in weight of the carrier means actuated by the various keys.
  • a typewriter including a type bar with a 'plurality of type faces, a lock member, a pinion by means of which the bar is rotated,
  • teeth of a predetermined number for each face having teeth of a predetermined number for each face; certain of the teeth being removed at a predetermined place to leave a predetermined number for each type face to engage and lock said member when the type bar is moved to the printing point.
  • a typewriter including a type bar with a plurality of characters on one type face, means for depressing the type bar to carry the various characters to the printing point, imposed on the bar and superposed one upon the other; and printing keys, equal in number to that of the carrier means, with connections to the latter for accumulatively actuating the carrier means in accordance with the key depressed.
  • a typewriter including a type bar with a plurality of characters on one type face, means for depressing the type bar to carry the various characters to the printing point, imposed on the bar and superposed one upon the other; printing keys, equal in number to that of the carrier means, with progressively longer levers; and connections between the levers and individual carrierineans, becoming shorter as the longer levers are attached to, and being connected to the successive carrier means as they accumulate, thereby producing an increase in leverage as the weight on the type bar increases.
  • a typewriter including a type bar with characters of different type styles on a plurality of axially disposed faces, means for ordinarily rotating the bar in one direction to bring the capitals of one style into the printing position, and associated means for turning the bar in the opposite direction to place another style in the position formerly occupied by the first, said bring the capitals of said second style into the printing position.
  • a typewriter including a multi-faced type bar, with means for turning the various faces into the printing position; shifting means rockably mounted in respect to said bar, means carried by the shifting means in engagement with the turning means of the bar for ordinarily turning the bar within at prescribed zone, and means associated with said engaging means enabling turning the bar in another direction independently of said shifting means, for'bringing other faces into the printing position.
  • a typewriter including a type bar, a plurality of carrier means. for individually depressing the bar, and means engaging ,said carrier means when in the rest position, to keep the parts in place.
  • a typewriter including a type bar with a plurality'of characters, and carrier means individuallyrepresenting the respective charactezs, so arranged in respect toeach other as to prevent side motion of the type bar at any time.
  • a typewriter including a type bar with a plurality of characters, carrier means for depressing thebar to the printing positions, superposed on the bar and themselves and individually representing the respective characters, said means being flanged to prevent lateral. movement of the type bar or any underlying carrier.
  • a typewriter including a type bar with 'aplurality of characters, carrier means superposed on the bar and on themselves for individually depressing the bar to the printing positions, means included therein for preventing side motion of the bar or said carrier means, and relatively fixed means for engaging the top and heel of the outermost carrier means for stabilizing the structure in the rest position.
  • a typewriter having closely spaced levers with connections, running to a single type bar, and spacing means consisting of wire strands between the close levers, also aiding to reduce friction.
  • a typewriter including a type bar with a plurality of characters, an equal plurality of printing keys controlling the one bar, and individual connections between the keys and bar to move the-individual characcarrier, each including portions nested.
  • each other to form a lock against lateral movement, and each including stopmeans for abutting an adjacent stop pad.
  • a typewriter including a type bar
  • I means for actuating it including a plurality of bar carriers, one having engagement with the bar; and a fixed lock iece engageable by nested and slottedportlons of said carrler.
  • atypewriter means to operate a straight multi-faced type bar, said means having working elements of but two .kinds, namely; bar carriers and bearing pivots for the'same, ⁇ one carrier being built and pivoted inside of and to the other, with bearings rising from each outside carrier, each bearing set higher than the other to throw said multi-faced type bar in line with the joint pivots across a platen in the act of printing.
  • a typewriter having a type bar, a plurality of nested carriers for independently actuating the type bar, and means which is fixed relatively to the type bar engageable by onecarrier to stabilize all of the others.
  • I 26. A typewriter having a type bar, and a plurality of carriers 'for independently actuating the type bar, the carriers being nested, one being in direct engagement with the type bar.
  • a typewriter havinga type bar, a bar carrier in engagement therewith, a plurality of. similar bar carriers cooperating with the vfirst for independently actuatin the type bar throughlsaid first carrier, eac carrier including portions nested within each a other; a-stop pad, and stop means on the carriers to engage'the pad.
  • a type bar having an integral type face, a holder'by which the bar is carried, a carrier adapted to engage the holderto depress it to the printing point, means to arrest the carrier at a predetermined place causing'the departure of theholder and type bar by momentum and-the procedure of the type face to the printing point, and means upon which the carrier and-holder have a common pivotal support so that thevabove functions may be carried 30.
  • a typewriter having a type bar, lock teeth formed on the type bar, a holder by which the type bar is carried and upon which it is normally revoluble, means embodied in the holder disposed in respect to said lock means to form a. guard, and a lock bar. having teeth defining recesses adapted to be entered by certain of said lock teeth and said guard to steady the holder and also keep the type bar from turning when in the printing position.
  • a typewriter having a teeth formed on the type bar, a-holder which is co-extensive with the type bar, means at one end of the holder in which the type bar has one bearing support, means at the other end of the holder providing a guard for said lock teeth-and in which the type bar has another bearing support, a lock bar having recesses beneath which said other end of the holder andsaid lock teeth are normallydisposedenabling rotation of the type bar inits bearings, carrier means en- -gaging' the holder in which carrier means .keep the type .bar from rotating.
  • typewriter having a type bar provided'witlnlockteeth and type faces, a
  • type bar lock 33.
  • a typewriter having a type bar provided with teeth. and type faces, a holder point, lock means, and a plurality of means having bearing means in which the type bar to independently operate the holder and type is revoluble, one of said bearing means formbar ,each time bringing the guard and said 10 ing a guard around the teeth; means in suedeth at another place into engagement with manent engagement with the teeth at one said lock means.

Description

May 12, 1925.
J. SMITH TYPEWRITER Filed Dec. 18 1920 e Sheets-Sheet z INVENTOI? Joel S WITNESSES mith ' May 12, 1925.
, 1,537,147 J. SMITH TYPEWRITER Filed Dec. 18, 1920 WITNESSES IN l/EN TOR Joel Smith. 4
A TTOR/VE V8 May 12, 1925 J. SMITH TYPEWRITER Filed Dec. 18, 1920 6 Sheets-Sheet 4;
C "C Q I 'Lvmrok Joel Smith.
ATTORNEYS 0 0 NE F E 8 No m0 hm WITNESSES May 12, 1925.
J. SMITH TYPEWRITER Filed'Dec. 1a, 1920 5 Sheets-Sheet 5 WITNESSES W x J IIVl/E/VTOR Joel Smlih.
ATTORNEYS May12, 1925. I 1,537,147
Q WITNESSES r00,
J. SMITH TYPEWRITER Filed Dec. 18, 1920 6 Sheets-Sheet -6 a INVENTOR A TTUH/VEYS I n w}. Il I l Patented my .12, 1925.
1 UNITED STATES JOEL smrn, or mom, mcmem.
mnwm'rnn.
Application filed December 18, 1920. Serial 1T0. 431,898.
To all whom it may concern:
Be it known that I, JOEL SMITH, a citizen of the United States, and a resident of Moran, in the county of Mackinac and State of Michigan, have invented certain new and useful Improvements in Ty ewriters, of which the following is a speci cation.
My invention relates to improvements in typewriters, and it consists in the constructions, combinations and mode of operation herein described and claimed.
One of the ;foremostobjects of the invention is to provide a typewriter with provisi on for carrying capital and small letters of a plurality ofstyles of type, with means for readily shifting from one style to another without doing more than merely moving a small handle.
A further object of the invention is to provide a typewriter wherein oneof the important"i,eatures centers on the compound joint at'which four printing keys are gathered and so arranged that their levers may operate on one type bar in such a manner that the desired type or character may be imprinted on the paper.
A further object of the invention is to.
' capital and small letters, there being means for readily turning all of the type bars of the machine simultaneously to bring the desired kind of type into readiness for printing, the shifting from small to capital letters or from one kind of type to another, be ing done with no noise whatever.
A further object of the invention is to provide a typewriter of durable yet simple construction, the former virtue being obtained principally through theuse of large open parts permitting light yet strongiconstruction. 7
A further object of the invention is to provide a typewriter wherein the working parts are covered so as not to distract the attention of the operator, and wherein there is increased visibility in writing, since the printing line is tilted toward the operator.
Other objects and advantages will appear" in the followingspecification, reference being had to the accompanying drawings, in which Figure 1 is a plan view of a typewriter Figures 6 and 7 are cross sections on the lines 66 and 7-7 of Figure 5,
Figure 8 is a detail plan view. showing the rotary type bar in place in its holder.
Figures 9 and 10 are cross sections on the lines 9-9 and 1010 ofFigure 8,
Figure 11 is a side elevation illustrating the first bar carrier in place on the holder of one of the rotary type bars,
Figures 12, 13 and 14 are detail cross sections as for example on the line 1313 of Figure 5, illustrating various shapes of the type head whereby one, two and three complete sets of type may be employed in the machine as conditions may require,
Figure 15 is a longitudinal section taken substantially on the line 15-15 of Figure 1, illustrating the type-shift mechanism,
Figure 16 is adetail plan view of the eleven retrieving springs and the spring base to which therear ends are adjustably secured,
Figure 17 is a detail elevation of the type change mechanism,
Figure 18, is a detail view illustrating modification in the manner of connecting the hangers to the key levers,
Figure 19is a longitudinal section of a typewriter constructed in accordance with struction of'type bars,
Figure 20 is a detail cross section on the line 20-20 of Figure 19, and
Figure 21 is an enlarged sectional view illustrating more clearly how the heel of the bar carriersjare locked together.
In order that the invention may be quickly understood, the description of the construction and mode of operation is subdivided into the following subjects, occurring in the order of their importance: (1) general construction; (2) rotary type bar; (3) compound joints; (4) printing operation; (5) letter shift action; (6) type change action; (7) the modified construction, and (8) rsum of advantages. Considering these in the order named,
(1) The general construction by step, because any desired spacing mechanism may be employed without affecting the operation of thereal invention, to the illustration of which the drawings are solely confined.
Ribbon spools 4 and 5 feed a ribbon across the printing point on the platen 2, with the I doing so by this cover.
- customary stey-by-step motion, the mechamsm for doing this being, omitted from the illustration for the reason stated above.v
Most of the mechanism is concealed from view b covers 6 and 7, perhaps best illustrated in Figure 2. The first cover acts as a catcher for the'erasings falling from the platen 2.
A veryobjectionable feature common to the majority of typewriters now known, is entirely obviated by the provision of the cover 6. Little or no dirt can get into the inside of the'machine, being prevented from It is an easy matter to sweep out what dirt does accumulate in the trou h of the cover. The second cover 7 shields t e type'bar in a measure from dust falling directly thereupon, but performs the more important function of concealing the working arts from the eyes of the operator, thus ena ling him to concentrate on the printingpoint which appears directly in the line of hisyision above the upper curved ed e of the cover or shield 7.
, stop pad 8, semi-circular in shape to conform with the general layout of the type bars, and made of. some suitable soft material, provides a stop for the flanges of the various 'type bar holders as they are depressed tothe printing position upon actuating the various printing keys. It is from the position last assumed by a type bar holder, i. e. when it abuts the stop pad 8, that the type bar itself departs by virtue of its own momentum into engagement with the platen 2, to produce the ultimate printing act.
A rear lock 9, of a semi-circular toothed construction, catches the various type bar holders as they are depressed into the printing position, so as to insure the stabilizing of the holder as the type bar departs therefrom to produce the type impression. There is also a front bar lock 10 with which parts of the type bars cooperate. It has lock teeth 11 and 12 as shown in Figure 9, there being a particular tooth formation as illustrated in Figure 9, for each of the eleven type bars.
The front bar lock 10'extends in a semicircle around the front of the machine, being fastened at 13 t0 s0me convenient part as for example, the shield 7 and at 14 to the brackets 15 which supportthe shield itself. Extending along the same semi-circle with the front lock 10 is the shift rack 16, of which there is a fuller description under the fifth subject below. Briefly stated though, a slight movement of this shift rack simul taneously changes the letters of all of the type bars, as for example, from small'letters to capitals, with so little sound that it cannot even be heard by the operator..
It has been stated that there are eleven type bars, designated 17, 18, 19, 20, 21 22, 23, 24, 25,26 and 27 in Figure 1'- It is about the type bar 20, and its associated parts, that the description below largely centers, the
type bar 20 being selected merely as an ex (2) The rotary type bar 20,
the details of which are shown in Figures 5 to 14. It has a rectangular type head 28 at the rear end. In this particular instance, the type head is squareincross section, as shown in Figure 13, and on each of the four faces of the head, there are four characters 29, 30, 31 and 32.
Two different styles of type are to be accommodated by the four faces ofthe head 28; both small and capital letters of each style. For example, one style may be that of the well-known typewriter characters, while the other may be in old English or small pica. The charactersrepresented are controlled by the longitudinal row of printing keys 33, 34, 35 and 36.
More or less than two styles of type may be carried by the type bar .20. The cross sectional face of the head 28 will then vary in accordance. When only one style of type is carried, the head will triangular in cross section as in Fi re 12, so as'to provide two faces for the ca ltal and small letters, When three styles type are to be carried, the cross sectional face of the head will be-he a agonal as in Figure 14, so as to provide six faces, two for the capital and small letters of each style respectively. On the same printate'd to change from small to capital letters of one style of type. Beyond a fixed point, every other one of the teeth of the pinion is removed to leave four lock teeth 39, running true with each of the four type faces of the head 28.
The uppermost one of these lock teeth 39 rises into engagement with the central notch 12 of the front bar lock 10 at every act ofprinting, thus holding the corresponding type face of the bar 20 true whilethe printing is being done.
There is a holder 40,-for the type bar 20. It is narrow for a major part of its length,
' diverging at the front to form a guard 41 which embraces the lock teeth 39 and provides a bearing for the front extremity of the type bar. The rear end of the type bar has a bearing support 42 from the holder. The holder moves as an integral part of the bar, but the type bar 20 has a free rotary movement in the bearings 41, 42, when operated to change type, by the shifting of the rack 16 over the pinion 37. The sides of the guard 41 enter the notches 11 in the front lock bar 10 when a printing position is assumed, as illustrated in Figure 9. Consider now 3) The oompownd joint,
keys as, 34., 35 and 36.
These bar carriers are pivoted one upon the other, as illustrated in Figure 4, thus constituting the compound joint to which so much importance is attached because through its functions the various type faces are made to strike at the common printing point. The type bar holder 40 has trunnions 47 fixed therein and projecting at the 2 sides, the-collar 48 forming-the bearing for the first bar carrier 43, the pintle 49 extending into the adjacent side of the second bar carrier. 44.
A stud 50, fixed in the sides of the carrier 45, provides the bearing for the second carrier 44. Similarly, a stud 51,- fixed in the sides of the carrier 46, forms the bearing for the third carrier 45. Finally, the fourth carrier 46 is pivotedat 52 on the U base bear ng 53 whlch is secured at 54 to the bar joint base 55. v
So it will be seen that one bar. carrier is hung upon the other'and they collectively bear down on the holder 40 in such numbers as represented by the associated printing keys. The first carrier 43 will bear down singly, but the fourth bar carrier 46 will bear down all carriers beneath it, and the type head 28 is thrown forwardly that distance as represented by the various pivots 49, etc. When the first carrier 43 is actuated, the movement occurs from the top pivot 49 and the.rest remain immovable. When the fourth bar carrier 46 is engaged, the whole structure moves as one on the lowermost stationary pivot 52, the parts then assuming the position illustrated in Figure 3.
Connections are made between the printing keys and bar carriers .by links 56, 57 58. and 59, the order of connection being that of the numerals. For example, the printing key 33, in the third bank from the operator, is connected to the first bar carrier 43 through the link 56. 7 The printing keys 34 and 35 follow in order, being connected to the second and third carriers 44 and 45 through the links 57 and 58, the last carrier 46 being connected with the uppermost printing key 36 through the link 59.
The reason for connecting the last carrier to the uppermost printing key is that the characters on the uppermost bank are used less frequently than the other printingcharacters, thus the arrangement made entails a lesser amount of work on the part of the operator, since each depression of a printing key in the uppermost bank means the carrying of all of the bar carriers beneath the upper one 46. Slot and pin connections 60, 61, as illustrated in the instance of the link 58 in Figure 2, join the various links to the levers 63, 64,65 and 66 of the printing keys. The various hangers may thus move with the bar carriers without disturbing the printing keys themselves.
A modification of the manner of connecting the links to the key levers, is illuslinks may be depressed as outlined above, without disturbing the key levers.
A retrieving spring 68 returns the type bar 20, and all appended parts, to the normal position against the felt or rubber sound-absorbin pad 69 with which the shield 7 is faced on the inside. There is one retrieving spring for each type bar 17, 18 etc, there being consequently eleven, in number as shown in Figure 16. The spring 68 is long and thus applies an easy tension on its type bar.
The rear end is connected to the spring base-70 through the link 71, the front end being connected to one arm of the pivoted spring crank 72 from the other arm of which there is a spring connecting link 73 extending to the yoke 44, the latter in turn pivoted to the front of the holder guard 41.
Adjustments in the tension of the spring 68 may be. made by inserting the link 71 in the various ones of the radial holes 75 in the spring base. There may also be an adjustment of tension of all retrieving springs by providing the ring base 70 with slots in which the holding screws are set, enabling sliding the base back and forth as may be required. A piece 76 risingup from the sides and extending across in the shape of a shoulder 77 provides a stop for the key levers as they rise to the rest positions. Lengths of small, steel wire 78, extending between the shoulder 77 and base of the piece 76, provide spacers betweenthe key lever and materially aid in reducing friction by keeping the levers true to their positions, since they run rather close at the points' where thespacers are placed.
. Key lever retrieving springs 7 9" are located -near the pivots at the back. A slotted guide 80 embraces the key levers where they drop lowest beneath their ivotal points, so as to keep; the levers in. t eir correct. positions.
The printing operation 7 may now be more readilyunderstoodf N ormally, the machine prints small letters, it
being necessary to shift when it is desired-- to rint capitals. To print the letter r, stri e the key 33. The, lever 33 moves on its pivot, pulls the link '56 down, therebysimilarly drawing the first bar carrier 43 down until the flanges 81 of the lattertstrike the stop pad 8, from which position the type bar 20 departs a relatively short distanceby virtue of its own momentum, to the final printing position in relation to the platen 2.
Since the actuation of the printing key 33 caused the first carrier 43 to move onits pivot 48 and since that pivot stands farthest from the printing point on theplaten 2, as the reader may readily observe in *any of the normal positions illustrated, it follows that the remotest character on the type head j platen at the printing point.
28 will be brought down. This character being r, consequently the letter r will be impressed on the paper.
The spacing mechanism is now supposed to operate, presuming that the key 33 has been released. To print the letter d, strike the key 34. This moves the lever 64 on its pivot, draws down the link 57, together with the second bar carrier 44 to which it is connected, thus rocking the parts on the second pivot 50 and causing the second character on the type head 28, counting down from the top, to en age the platen 2 at the printing point. Thls character is the letter In the first instance, the bar carrier 43 carried the holder 40 and type bar 20 with it. In the second instance, the bar carrier 44 carried the carrier 43, holder 40 and type I bar 20 with it. Upon striking the key 35, the lever 65 will draw down the link 58 and its bar carrier 45, moving the carriers 44, 43, the holder 40 and type bar 20 beneath it.
This third printing operation brings the third pivot 51 into play, causing-the third character on the type head 28 to strike the The variouspivots are progressively nearer the platen and through this arrangement the various characters are made to engage at the printingpomt as they are brought into operation'- The same principle of operation prevailswhen the key 36 is struck.
In this instance the carrier 46, being ac tuated by the link 59 and lever 66, carries three bar carriers beneath it, together with the holder 40and type bar 20. The pivot 52, which now comes into play, being. nearest the platen 2,,causes the lowermost charactor to engage at the printing point. As,
pointed out above, the characters in the upper bank of keys are relativel little used and for that reason are laced 1n the up or bank. The most work 1s done on the rst three banks. of keys, counting from the operator; the lever and link connections with the various bar carriers are such as to produce an equalization of the energy requlred in operation.
To illustrate The shortest lever 63 of those in the three banks mentioned, has the longest link connection 56 to the first bar carrier 43. The next longest lever 64 has a little shorter linkconnection 57 to the second carrier 44, while the lever '65, longest of all, has a still shorter link connection 57 to the third carrier 45. Thus, the increased leverage serves to equalize the increase oi weight of parts operated.
Parting mention is madeof the fact that each time the holder 40 is depressed in a printing operation, it engages the lock 9 at the rear and 10 at the front. This double engagement holds the holder immovable and in the correct position to let the typebar i make its slight departure into the second POSltlOIl represented by the dotted lines P in Figures 3 and 11. The notches 11 and 12 are deep enough to permit the additional and heel rest locks 82 and 83 in back of the (5) The letter shift action is produced by simply depressing one or the other of the shift keys 84, whereupon all of the type heads 28 are made to simultaneously turn 90, or a quarter turn, through the movement of the shift rack 16 over the pinion 37. The shift rack holder 85, to
which the rack 16 is secured, is centrally pivoted at 86, which-central pivot coincides with the printing point on the platen 2.
, depressed.
' pica.
A shaft 87 extends from side to side of the frame 1, being mounted in bearings 88,
and carries a crank 89, to one arm of which the left shift *key 84 is pivotally attached, and to the other arm of which the connecting strap 90 is likewisepivotally attached.
The crank 89 is formed with across strap 91 from which a crank arm of the other shift key 84 extends since the strap goes across the machine to the right side.
There is a pivotal connection 92 between the strap 90 and holder 85. The stop 93 of the strap 90, works between the pads 94 of stop studs 95, which are part of a block "96 secured to a part of the frame. The re trieving spring 97, connected between a lug 98,fixed on the block 96 and a suitable lug on the strap 90, holds the stop 93- against the upper pad 94and keeps the shift keys 84 in the uppermost position'in readiness to be Depression of one of the shift keys 84 causes a movement of the shift rack 16 to the right consequently rolling all of the type bars toward the right the distance 'of two teeth, bringing the right type face under into the printing position. This right type face is composed of capital letters of the style of type now in use, for example, small Upon release of the shift key, the retrieving spring 97 restores all parts to the original position, the type bars being then rolled 90 toward the left to present the small letters to the platen as before.
(6') The type change action is produced by lifting thetype change latch 99 from the now- alimng notches 100, 101, in
the shaft rack 16 and holder 85 respectively,
and moving it toward the ,left until the notch 100 alines with the second notch 102 1n the holder. The latch 99 is now pressed down and the changing of the type Wlll have been accomplished. The shifting of the latch 90 moves the shift rack 16 a distance toward the left equal to four'teeth, as indicated by the arrow a in Figure 17, thus brlngmg the capital and small letters of the second style of type on the head 28 into the same relationship formerly assumed by that style now rotated out of operation. This can be readily be understood by considering the small diagram projected beneath the pinion at the right in Figure 17.
Shifting of the rack 16 (Fig. 17) is limited by stop means 99- which may consist of a screw the shank of which passes-through a slot 100 in the rack.
When the top head 28 is in the original position, the small a of the small pica style is beneath, a quarter-turn as when-the shift key 84 is depressed, bringing the capital A into the printing When the type change action occurs, by shifting the latch 99 to turn the type bar 180 or halfway round, as indicated by the arrow I), the old English A{ moves into the place of the small pica A, while the small old English a moves into the former place of the small letter of the other style. Thereafter, ordinary typewriting prints small old English letters, and depression of the shift key 84 moves the capitals of the old'English style around the printing position.
7 ('7 The modified construction in Figure 1.9,
with Figure 2 will show a similarity of construction, with the exception that in Figure 19, the formation of the type bar carrier is different. Those parts of the typewriter which are alike, are designated by similar reference characters, only the construction of the modification being here specifically considered.
The construction of type bar carriers 48, 44", 45 and 46 is preferable in a model of this machine, having a short bartravel, as for example, in models carrying from two sets of type down to one set, the construction of bar carriers described in the first form of the invention; being more-particularly adapted to'models of three or more sets of types. Instead of locking the bar carriers together at the top, as clearly shown in Figure 2, the bar carriers now extend toward the back of the machine from the crank connections of the hangers 58, etc., by which the key levers etc. actuate them, onlythe top. carrier 43' remaining extended position. I
. up over the bar holder to control and actuate the-same in the operation of printing.
Roughly considered, the comgound ]01Ilt now takes the shape of a fis -hook, the shorter end being the lower part, where all carriers crossover from side to side in continued connection, 43 bein underneath, 44
next above, 45 on top of t at, and 46 covering the whole. The carriers terminate in, what appears in side elevation, a spear head, the various carriers being nested within each other to form a look at this point, assuming the formation shown in Figure 20. T1118 lock comes torest against the ad 105 of the stop plate 106, the points of t e superposed carriers at the lock being slotted at 107 in Fi ure 21, to engage the lock piece 108.
an the underside of the spear head, the innermost carrier 43' is seen to have laterally extended flanges 109 on which all of the other carriers rest'. The construction is lainly shown in' Figure. 20. On the same line with the stop flanges 109 of the carrier 43 are stop studs 110, 111 and 112 of the carriers 44, 45 and 46, respectively, in-
tended to strike the rim 113 of the cam base 114. The pad 8 rests on this base, and the heels or stops o ;f the'various carriers engage this pad in the, operation of the type bars.
(8) A rsiwn of the advantages should be of assistance in concluding the foregoing description.
nently built into the type heads of the machine, is one of the foremost in importance because this gives the owner of one machine the advantages of Several other machines,
each having different styles of type.
The concentration of types on the type bar is also of importance,-because it enables bringing the operating parts closer together, and so make a more compact machine. It
has been fullypointed out above that thetype heads 28 canbe made in three or more faces, thus accommodating one or more complete sets oft e'.
One of the c aracters may be omitted from each type face, consequently doi'ng awa with the corresponding bankof printing eys. In suchevent, the operating principles of the machine remain the same as before. Practically no weight is moved inshifting thetypebars, the only movement in any case cons sting'fsimply of rolling the bars 90 :in one direction or 180 in the other,
The feature of a' plurality of difl'erent styles of type perma-' always stand poised ready to drop upon the slightest touch on the printing keys, the
preferred formi) obviously modifications and changes may e made without departing from the spirit of the invention or'the scope of the dams.
I claim 1. A typewriter, including a type bar with l a series ofcharacters, a plurality ofbar'carriers pivoted to each other but progressively nearer the printing point, and a plurality of printing keys respectively in connection with the various carriers, for moving the type bar on any of the pivots accordingly as the keys are depressed causing corresponding characters to strike the printing point.
2. A typewriter, including a type bar with a series of characters, means equal in numbar to that of the characters for individually throwing the type bar farther to cause the respective characters to strike at the printing point, said carrier means being mutually interlocked to prevent side play; and an equal pluralitypf printing keys with individual connections to the respective carriers.
3. The combination in a typewriter, of a type bar and a plurality of carriers for depressing it toward a printing point, nested one within the other to prevent side play.
4. A typewriter, including a type bar with a series of characters, a plurality of members by which the type bar is supported, pivoted upon each other at places progressive] nearer the printing point; an equal plura ity of printing keys, and separate connec tions from the individual keys'to the respective members, accumulatively moving said members on progressively nearer pivots to variously advance individual characters to the printing point in accordance with the printing key selected. 3
5. A typewriter, including a single type bar with a plurality of characters, an equal plurality of means for depressing the'bar to print by the respective characters, an equal plurality of-printing keys with successively longer levers, and an equal plurality of conneotions between the lovers and carrier means, of successively lesser lengths as they join successively longer levers for the purpose of compensating in leverage the increase in weight of the carrier means actuated by the various keys.
6. A typewriter, including a type bar with a 'plurality of type faces, a lock member, a pinion by means of which the bar is rotated,
having teeth of a predetermined number for each face; certain of the teeth being removed at a predetermined place to leave a predetermined number for each type face to engage and lock said member when the type bar is moved to the printing point.
7. A typewriter, including a type bar with a plurality of characters on one type face, means for depressing the type bar to carry the various characters to the printing point, imposed on the bar and superposed one upon the other; and printing keys, equal in number to that of the carrier means, with connections to the latter for accumulatively actuating the carrier means in accordance with the key depressed. 1
8. A typewriter, including a type bar with a plurality of characters on one type face, means for depressing the type bar to carry the various characters to the printing point, imposed on the bar and superposed one upon the other; printing keys, equal in number to that of the carrier means, with progressively longer levers; and connections between the levers and individual carrierineans, becoming shorter as the longer levers are attached to, and being connected to the successive carrier means as they accumulate, thereby producing an increase in leverage as the weight on the type bar increases.
9. The combination in a typewriter, of a type bar, with a pinion by which it is rotated, the pinion having teeth removedito produce locking means; and a holder in which the bar is rotatably' mounted, including'a portionembracing the pinion and lock means to form a guard. 1
10. The combination in a typewriter, of a type bar, with apinion by which it is rotated, the pinion having teeth removed to produce locking means, a holder in which the bar is rotatably mounted, including a portion embracing the pinion and locking means to form a guard, and relatively fixed locking means with which the locking means of the bar and portions of the guard engage when the bar is depressed to the printing point. I
11. The combination in a typewriter, of a bar holder including a' portion defining a guard, a type bar journalled on the holder, with a pinion and locking means housed by the guard; carrier means by which the holder and bar are actuated as. -one, and a pivotal mounting between said means and the holder permitting movement ofthe bar to the printingpoint after being depressed a predetermined distance in that direction by the carrier means.
12. The combination in a typewriter, of a bar holder including a, portion defining a guard, a type bar journalled on the holder, with a pinion and locking means housed by the guard; carrier means by .which the shifting means being capable of actin holder and bar are actuated as one, a pivotal mined distance in that direction by the carrier means, and relatively fixed locking means for engaging the locking means and the guard of the type bar when the printing point is reached.
13. A typewriter, including a type bar with characters of different type styles on a plurality of axially disposed faces, means for ordinarily rotating the bar in one direction to bring the capitals of one style into the printing position, and associated means for turning the bar in the opposite direction to place another style in the position formerly occupied by the first, said bring the capitals of said second style into the printing position. r
14. A typewriter, including a multi-faced type bar, with means for turning the various faces into the printing position; shifting means rockably mounted in respect to said bar, means carried by the shifting means in engagement with the turning means of the bar for ordinarily turning the bar within at prescribed zone, and means associated with said engaging means enabling turning the bar in another direction independently of said shifting means, for'bringing other faces into the printing position. 15. A typewriter, including a type bar, a plurality of carrier means. for individually depressing the bar, and means engaging ,said carrier means when in the rest position, to keep the parts in place.
16. A typewriter, including a type bar with a plurality'of characters, and carrier means individuallyrepresenting the respective charactezs, so arranged in respect toeach other as to prevent side motion of the type bar at any time.
17. A typewriter, including a type bar with a plurality of characters, carrier means for depressing thebar to the printing positions, superposed on the bar and themselves and individually representing the respective characters, said means being flanged to prevent lateral. movement of the type bar or any underlying carrier.
18. A typewriter, including a type bar with 'aplurality of characters, carrier means superposed on the bar and on themselves for individually depressing the bar to the printing positions, means included therein for preventing side motion of the bar or said carrier means, and relatively fixed means for engaging the top and heel of the outermost carrier means for stabilizing the structure in the rest position.
19. A typewriter, having closely spaced levers with connections, running to a single type bar, and spacing means consisting of wire strands between the close levers, also aiding to reduce friction.
20. A typewriter, including a type bar with a plurality of characters, an equal plurality of printing keys controlling the one bar, and individual connections between the keys and bar to move the-individual characcarrier, each including portions nested.
within each other to form a lock against lateral movement, and each including stopmeans for abutting an adjacent stop pad.
22. A typewriter, including a type bar,
I means for actuating it, including a plurality of bar carriers, one having engagement with the bar; and a fixed lock iece engageable by nested and slottedportlons of said carrler.
23. The combination, of a multi-faced type bar, a holder .on which the bar is rotatable, a plurality of carriers, and a compound joint connecting the carriers, through which any individual carrier can depress the holder and type bar to the printing point.
24. In atypewriter, means to operate a straight multi-faced type bar, said means having working elements of but two .kinds, namely; bar carriers and bearing pivots for the'same, \one carrier being built and pivoted inside of and to the other, with bearings rising from each outside carrier, each bearing set higher than the other to throw said multi-faced type bar in line with the joint pivots across a platen in the act of printing.
25. A typewriter having a type bar, a plurality of nested carriers for independently actuating the type bar, and means which is fixed relatively to the type bar engageable by onecarrier to stabilize all of the others. I 26. A typewriter having a type bar, and a plurality of carriers 'for independently actuating the type bar, the carriers being nested, one being in direct engagement with the type bar.
27. A typewriter havinga type bar, a bar carrier in engagement therewith, a plurality of. similar bar carriers cooperating with the vfirst for independently actuatin the type bar throughlsaid first carrier, eac carrier including portions nested within each a other; a-stop pad, and stop means on the carriers to engage'the pad.
28. In a typewriter, a compound joint mg pairs of bearings by which they are pivoted upon each other, and means to operate one, a plurality, or all of the carriers on the pivotal bearings while the rest are stabilized, and depress them together in the printing act, a compact structure being formed when two or more carriers are actuated.
29. In a typewriter, a type bar having an integral type face, a holder'by which the bar is carried, a carrier adapted to engage the holderto depress it to the printing point, means to arrest the carrier at a predetermined place causing'the departure of theholder and type bar by momentum and-the procedure of the type face to the printing point, and means upon which the carrier and-holder have a common pivotal support so that thevabove functions may be carried 30. A typewriter having a type bar, lock teeth formed on the type bar, a holder by which the type bar is carried and upon which it is normally revoluble, means embodied in the holder disposed in respect to said lock means to form a. guard, and a lock bar. having teeth defining recesses adapted to be entered by certain of said lock teeth and said guard to steady the holder and also keep the type bar from turning when in the printing position.
31. A typewriter having a teeth formed on the type bar, a-holder which is co-extensive with the type bar, means at one end of the holder in which the type bar has one bearing support, means at the other end of the holder providing a guard for said lock teeth-and in which the type bar has another bearing support, a lock bar having recesses beneath which said other end of the holder andsaid lock teeth are normallydisposedenabling rotation of the type bar inits bearings, carrier means en- -gaging' the holder in which carrier means .keep the type .bar from rotating.
-32. typewriter having a type bar provided'witlnlockteeth and type faces, a
holder having bearing means in which-the V type banisfrevoluble to present any of the type faces,jone"0f said bearing means forming a guardaround the lock teeth; a plurality of meanseachcapable of independently actuating the type bar, lock means, and means to independently operate said type bar actuating means each time bringing the guard and certain of the lock teeth into engagement with said lock means.
type bar, lock 33. A typewriter having a type bar provided with teeth. and type faces, a holder point, lock means, and a plurality of means having bearing means in which the type bar to independently operate the holder and type is revoluble, one of said bearing means formbar ,each time bringing the guard and said 10 ing a guard around the teeth; means in perteeth at another place into engagement with manent engagement with the teeth at one said lock means.- I
place adapted to revolve the type bar to present any of the faces to the printing JOEL SMITH.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469390A (en) * 1946-05-10 1949-05-10 Victor Adding Machine Co Key lever spacer and guide for stenographic machines
US4613247A (en) * 1982-07-26 1986-09-23 Fwm Enterprises, Inc. Multiple format keyboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469390A (en) * 1946-05-10 1949-05-10 Victor Adding Machine Co Key lever spacer and guide for stenographic machines
US4613247A (en) * 1982-07-26 1986-09-23 Fwm Enterprises, Inc. Multiple format keyboard

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