US1407509A - Typewriting machine - Google Patents

Description

L H. BARR.

TYPEWRITING MACHINE.

APPLICATION FILED JULY 6. 191B.

Patented Feb. 21, 11922;

4 SHEETSSHEET I.

INVENTDR fizm dww WITNESSES jgm 5 M Hi5 ATTORNEY J. BARR.

TYPEWRITING MACHINE- APPLICATION FVILED .IULYG, 191s. 1,4@?,509, Patented Feb. 21, 1922.

4 SHEETS-SHEET 2.

4 SHEETS-SHEET 3- 1 BARR. TYPEWRITING MACHINE.

APPLICATION FILED JULY 6, 1918.

Patented. Feb. 21, 1922.

INVENTEIR fiwi HIS A RNEV WITNEEISES J. H. BARR.

TYPEWRITING MACHINE.

APPLICATION FILED'JULY 6,1918.

1,407,509, Patented Feb. 21, 1922.

4 SHEETS-SHEETA.

WITNEESESY I INVENTUR X @4111. MW

H15 ATruRNEv chines, of which the following is a specifica- UNHTE stars.

JOmI' ELIBARR, OF NEW YORK, N. Y., ASQIGNOR T0 REMTTNGTON TYPE-WRITER. COM- raraitr caries.

PM, 01E ILION, NEW YORK, A. CORPORATION OE NEW YORK.

TYPEWBITING' noaaoa.

Specification of Letters Patent. Patented Fab, 21, 11922,

Application filed July 6, 1918. Serial No. 243,587.

To all whom may comma Be it known that 1, JOHN H. Bank, citi-' zen of the United States, and resident of the borough of Manhattan, city of .New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Typewriting Mation.

My invention relates to typewriting machines and it has for its principal object to provide an improved typewriting machine capable of being expanded into position or condition for use and to be compacted into a smaller space for convenience in carrying about. i V

To the above and other ends my invention consistsin certain features of construction and combinations and arrangements of chinerwith the casing removed, the machine being shown in expanded position.

F igure' 2 is a partial plan view of the same.

Figure 3 is a view like Fig. 1 but with the machine in compacted position.

Figures 4 and 5 are front to rear vertical sectional views, the former showing the machine compacted, and'the latter expanded. Figure 6 is a perspective view of a portion of the mechanism whereby the expanding and-collapsing of the machine is efl'ected, the parts being shown in expanded position.

Figure 7 is a reduced diagrammatic side view of the machine in extended position, the linkages concerned in the compacting of the machine being represented by heavy lines.-

Figure 8 is a similar view, showing the machine compacted.

My invention is here shown embodied in a machine which in many respects is similar to that shown in m prior application filed May 21, 1918, Sr. 0. 235,812; but some of the features of the present invention are capable of embodiment in machines difierparticularly pointed out in the ing considerably both from that shown insaid prior application and also from the one shown-in'the present drawings.

The framework of the machine shown in the drawings may be said to comprise three principal parts, all of which are stationary when the machine'is in use but which are relatively movable from compacted position to expanded position, and. vice versa, said.

three parts consisting of a base 1, a type action frame 2 and a type bar rest 3. The

rear ends. This casting is so shaped and machined as to comprise a type bar segment 8 and a sub-lever segment 10, lying'substantially in horizontal planes, the latter in front of the former. This casting also includes right and left-hand extensions '11 which are secured to the side plates 5. It will be seen that the type action frame 2 may be roughly described as a rectangular frame, as viewed from above.

Referrin to Figs. 1 and 3 and also to Figs. 7 an 8, the base 1 and frame 2 are connected by forward links 12 and rear links 13, the four links being parallel and being pivoted to the base 1 at 14 and to the frame 2 on pivot screws 15. When the machine is expanded these links stand nearly upright or a little past the center, and when the machine is compacted they lie toward the front of the machine and more nearlyhorizontal, the frame 2 in this position being down against and almost in the pan-like base 1. hen the machine is moved to its expanded position the motion of the parts is arrested by lugs 16 of the links 12 striking against projecting parts of the front plate 6 of the frame 2. Any suitable means can, it desired, be provided for fastening the frame'2 in its elevated position but no such means is shown in the present drawings.

A platen 17 is mounted in a carriage 18 which is connected by ball bearings 20 with carria e rails 21 secured to brackets 22. Said rackets constitute parts of a shift frame the balance of which is not shown no they are pivoted on a pivot wire 25 lying in a groove .in the rear face of the type bar segment 8, which segment has a series of radial slots 26, Fig. 5, to guide said type bars. Each of the type bars has on the heel 'type bars.

thereof several gear teeth 27 followed by a concentric part 28; The sub-lever segment 10 has a series of sub-levers 30 mounted therein in radial slots 31 and pivoted on a wire 32, and each provided with a restoring spring 29. Each of said sub-levers at its rear end is made of segmental form having a concave edge 33 adapted to the smooth part 28 of the ty 9. bar and having also gear teeth 34 adapte to the gear teeth 27. It will be recognized that the gearing between the sub-levers 30 and the type bars 24 is of the general sort some times called Geneva gearing.

Each of the sub-levers 30 is connected by a depending link 35 with a secondary sublever 36 which in tfirn is connected by a vertical link 37 with a printing key lever 38, said key levers having keys 40 on their forward ends. The front plate 6 of the frame 2 has the form of a double comb.

plate having long slots in its lower part, whichguide the key levers 38, and having shorter slots in its upper part, in which the sub-levers 36 are pivoted. Said sublevers 36 extend directly front and back of the machine whereas the sub-levers 30 radiate from the printin center of the machine as will be understoo from Fig. 2. It will also be understood that the sub-levers 30 are all alike, whereas the sub-levers 36 are of varying len ths, those near the middle of the system eing the shortest and said sub-levers increasing in length towards the sides of the s stem. The links 35 are all at the rear en s of the several levers 36 and the links 37 are variously located in order to bring about the desired equality of leverage of the several keys on their respective The key levers 38 extend toward the rear of the machine beneath the casting 7 and they are all pivoted at their rear ends on a wire 41 secured in a comb plate 42 having the form of an angle iron, the horizontal flange of which is secured by screws 43 to the under side of the castin 7.

From what has been sai it will be perceived that when theframe of the machine is changed from compacted to expanded condition and vice versa the entire type action and also the platen and carriage move with the frame 2.

The type'bar system is itself expansible and compactible by movin the type bars individually to change the ormation of the system or set of type bars from the expanded formation illustrated in Figs. 1, 2 and 5 to the compacted formation illustrated in Figs. 3 and 4. The Geneva gearing between the type bars and their sub-levers 30 constitutes part of the means wherebythis change of formation of the type bar system is made possible. In the expanded formation each type bar stands up as shownv in Fig. 5 where it will be seen that the first of the teeth 27 is in engagement with the rack on the end of the sub-lever. But if the type bar be dropped down from its Fig. 5 to its Fig. 4 position the sub-lever will be moved but a slight distance when the smooth part 28 of the heel of the type bar runs into mesh with the concave 33 of the sub-lever, whereupon the type bar moves independently of the sub-lever and is capable of dropping down to the horizontal position shown in Fig. 4 without causing further downward motion of the rear end of the sub-lever 30 and upward motion of the key 40. In this. position, the type bar locks the sub-lever 30 frame 2, so that the compactingof the frame 2 with relation to the base 1 and the compacting of the type bar system itself with relation to the frame 2, automatically take place together. Said type rest 3 is here shown as consisting of an arc-shaped bar or rod covered with suitable soft or elastic material and supported at its ends in arms or brackets 44 to which said type rest is secured by screws 45, Figs. ,1 and 2, each passing through one of the brackets 44 and threaded into theend" of the rod. The brackets 44 consist of prolongations of links 46 one on each side of the machine and each pivoted or jointed at 47to an upward and forward extension 48 of the link 13 which connects thebase 1 with the frame 2. It will be perceived that the pivot 47 is further from the pivot 14 than is the pivot 15 so that the link 46 will move up and down further than the frame 2. Moreover, the extension 48 of the link 13 extends much more nearly horizontal than the part of said link between the pivots 14 and 15. By comparing Figs. 1 and 3 it will be perceived that the actual motion of the type rest 3' from the machine the type rest is nearly in the same horizontal plane as the pivot wire 25 of the type bars whereas in the'expanded position 831d type rest stands considerably above said pivot wire.

The upper part of the link 46 and bracket 44 is guided in the compacting and expanding movements by links or arms 50, one at each side of the machine and pivoted at 51 to the links 46. Said links '50 extend toward the frontof the machine where they are secured rigidly to the ends of a transverse rock shaft 52 journaled at its ends in the side plates 5 of the frame 2. As here shown the links 50 are secured in place on the ends of said shaft by screws 53. The end of the shaft may be squared or otherwiseshaped so that the links 50 are rigid on said shaft whereby the two ends of the type rest are compelled tomove up and down to the same extent.

In my prior application, Serial No. 235,812, hereinbefore referred to, the type rest had an up and down motion for the same purpose as the type rest 3 in the present case; but in said prior application the type rest was mounted on a top plate which moved bodily up and down, and the links 50 were not employed.

From all that has been said it will be seen that when the machine is in. its expanded position, shown in Fig. 1, the type action is at a convenient elevation above the desk and the type bars stand up at a convenient angle to be operated by the keys,

which cause them to be thrown toward the rear and downward to strike against the upper face of the platen 17; whereas when the machine is in its compacted position the entire type action frame 2 is lowered as much as possible and also the type bars themselves are dropped back into horizontal positions, so that the up and down dimension of the machine, as a whole, isgreatly reduced. It will also be'perceivedthat in 7 in under the rear keys 40, whereby the length of the machine is materially reduced.

Moreover, as will hereinafter appear, thiscompacting of the keyboard takes place,

automatically in conjunction with the other compacting movements of the machine.

Some of the key, levers 38 are so con- .structed as to be capable of a telescopic lonof the levers of the two forward rows is made in two parts, the rear part pivoted on the wire 41 and extending to just in front of the cross bar or comb plate 6 where it terminates in a loop 55 extending upward and embracin the forward part of the key lever, which orward part projects toward the front of the machine and has the key 40 mounted thereon. This forward part of the key lever lies on top of and edge to edge to the lower and rear part of said key lever, extending into the machine some distance behind the comb plate 6 and having on its rear end a loop 56 extending downward and embracing the rear section of the key lever. The construction is such that the key' canbe pushed toward the rear of the machine as will be understood by comparing Figs. 4 and 5, the "upper and forward section, of the key lever sliding over" the upper edge of the lower and rear section, said upper section sliding through the forward loop 55 and the rear loop56 sliding Y secured at its ends to two levers or side bars 57 which are pivoted at their rear ends on the wire 41 and which are of the telescopic construction just above described, each of said levers 57 being made in two sections, the same as the telescopic key levers 38. This construction 'of space bar and key lever whereby the keyboard is made contractible is more fully shown and described and is claimed in my prior Patent No. 1,267,356, dated May 28, 1918. In the present case this constructlon is claimed only in combination with other expansible and contractible features of the machine. In the present in stance, however, there are detail differences between the construction of the space bar of the present machine and that shown in my prior patent just referred to, and these difleren'ces will be understood by reference to C Fig. 6. The rear-sections 58 of the space key levers 57 haveeach a part 60 bent off from? part of its under edge toward the outside of the machine, said part being thence bent upward as shown to form a flange. This bent-over part of the lever, extending as it does a .little down from the lower edge of the section 58, has notches cut therein to form a series of rack teeth 61. Moreover,

the upper section 57 of each ofsaid levers has a similar flanged rack on its upper ed which is bent first outward toward the si e of the machine and thence downward and so cut-as to form rack teeth 62. A pinion 63 has its teeth engaging the rack teeth 61 and 62, said pinion being guided andheld in place in engagement with the upper and lowerracks by the vertical flanges of the racks. It will be perceived that the construction is such that each of the racks comprises a .sort of groove between the bent-over flange and the main body of the lever and this groove is of such character as to prevent the displacement si'dewise of the pinion 63. Said pinion is journaled on a stud secured in place by a screw 64, which screw passes through the forward end of an approximately horizontal link 65 and which at its rear end is pivoted at 66 to a lever 67 which at 68 is pivoted to the side plate 5 of the frame 2. ,When the machine is in the expanded position shown in Figs. 1 and 6 the pinion 63 is in engagement with the forward end of the rack 61 and with the rear end of the rack 62; but if the space bar 54 be pushed toward the rear of the machine to the position shown in Fig. 3 the rack 62 will cause the pinion 63 to roll along the rack 61, the pinion moving toward the rear of the machine just half as far as the space bar moves. In this rearward motion the pinion carries with it the link 65 and the lower end of the lever 67. Saidlever 67 is integral with'a segmental rack 70 lying forward of the pivot 68 and meshingwith another rack 71 secured, as by rivets 72, to the link 50 which guides the up and down movement of the link 46 and type rest 3. It will be perceived therefore that if, with the parts standing as shown in Figs. 1 and 7, the space bar 54 be pushed toward the rear, the lever 67 will be rocked, the racks 70 and 71 and the link 50 will be moved downward and the type rest 3 will move downward also. Moreover, the links 50 being connected to the links 46, and these being connected asdescribed with the links 13, said links 13 will also be carried down at the same time movin the entire upper parts of the machine to t e compacted position shown in Figs. 3 and 8. If, on the other hand, the frame 2 itself be moved up or down carryin the links 46 with it as has been descri it will be obvious that this motion will be communicated through the racks 71 and 70, lever 67, etc., to the space bar, causing the said space bar and tele scoping printing key levers to be moved forward or rearward. It will, of course, be understood that the lever 67 or its equivalent can be connected to the space key levers by means other than the pinions 63, etc., here shown; but said pinions are advantageous in reducing the long motion of the space frame to a shorter motion of the lever 67.

In the present machine as in that shown carries the telescopic key levers 38 with it. To this end each of said key levers of the front two rows has a vertical edge 73 which is acted on by the rear edge of the space bar to push said key levers into the machine to the position shown in Fig. 4. In order to pull said printing key levers out to their expanded positions when the space bar moves forward, a bar 74 is provided which lies acrom the tops of all of the rear sections of the printing key levers 38 and just at the rear of the rear ends of the forward or telescoping sections of such of said key levers as have the telescopic action. Said bar 74 is secured to the rear ends of two links 75 one at each side of the machine and each pivoted at 76 to one of the telescopic sections 57 of the space key levers. When the space bar is moved toward the front of the machine it draws this bar 74 with it and said bar, acting on the rear ends of the upper sections of the printing key levers, pulls all of said key levers out into their positions for use as shown in Figs. 1 and 2.

It will be perceived that when one machine is in its expanded condition ready for which carries most of the mechanism, is at a suitable elevation above the desk and above the base 1, the type bars are held up in 'position to be operated without having to move through a very large angle and the keyboard is expanded in the usual formation of typewriter keyboards; and it will also be perceived that when the machine is moved to compacted position the frame 2 drops down into and onto the base 1; the space bar and the forward rows of keys are moved into contracted relationship with the other keys and with one another; and the'type bars are dropped down into their compacted formation and into close relation with the rest of the machine so that the entire space occupied by the machine is greatly reduced.

It will be seen that the links .65 and 75 are both so connected with the space key levers and that they are so disposed as to allow of the down and up motion of said space key levers without disturbing either the levers 67 or the bar 74. In respect to said bar 74 the present machine is an improvement over that shown in my prior Patent No. 1,267,356, hereinbefore referred to. In said patent a bar which performs the general function of the bar 74, is mounted on the forward sections of the space key levers themselves so that this bar moves up and down with the space key and in case it was in actual contact with the rear end of the telescopic section of one of the printing key levers it would rub against said section. In the present instance the bar 74 simply rests on top of the rear sections of the printing key levers and does not move up and down with the space bar, this being due, of course, to the fact that the links 75 are pivoted to the space key levers as described.

There are a number of parts of the machine shown in the drawings and which have menace not heretofore been referred to. A letter feed rack 77 ismo'unted on the carriage 18 and it has its rack teeth on the upper edge thereof in position to be e aged by any suitable feed dogs 78, conventionally shown in the drawings. Said feed dogs, and in fact the entire carriage feed mechanism, can be of any suitable description but as here shown said dogs are loosely mounted on a transverse rock shaft 80 which at its ends is connected, by means not shown, with lever arms 81 on the forward end of which is mounted a universal bar 82, that underlies the printing key levers and the space key levers. Said rock shaft 80 has rigidly mounted thereon an arm 83 loosely connected at 84: with an. arm 85 ofthe device on which the feed dogs/78 are mounted, the

loose connection 84 being of such character.

, spools 87. The machine can be equipped with any suitable paper feed devices 90. In- Fig. 2 there is shown a fragment of a top plate 91 which is secured to the side plates- 5 of the frame 2 through the instrumentality of cars 92 bent off from said side plates.

Various changes can be made in the details of construction and arrangement without departing from my inventlon. I

What I claim as new and desireto secure by Letters Patent, is

the combination of a set of type bars, a set of keys for operating said type bars, means for changing the formation of said set of type bars to an extended formation ready for use and to a compacted formation, and connected means for changing the formation of said set of keys.

2. In a compactible typewriting machine, the combination of a set oftype bars, a set of key levers including telescopic key levers connected with said typebars, and mecha nism for simultaneousl telescoping said telescopic key levers an changing the formation of said set of type bars from an extended formation ready for use 'to a compacted formation. K

3. In a compactible typewriting machine, the combination of a set of printing key levers and connected printinginstrumentalities, means for compacting the dimensions of said set of ke levers towards the .back of the machine, an means operatively connected with the first recited compacting means for compacting the machine vertically.

including a keyboard and printing instrumentalities, the combination of means for shortening the dimensions of said keyboard to compact the machine horizontally, and

means operatively connected with said short-- ening means for compacting the machine vertically.

5. In a compactible typewriting machine, 7

the combination of a keyboard, type mechanism, and compacting means including means for depressings the'type mechanism into compacted position and for fore-shortening the keyboard.

6.'In a typewriting machine, the combination" of a pivoted type bar, a telescopic key lever for operating said typebar, and means for simultaneously dropping said type bar back, to a compacted position and for telescopically fore-shortening said. key lever.

7 In a compactible typewriting machine, the combination of a telescopic key lever,

lever, and means for simultaneously drop-. ping said type bar back to a compacted position, disconnecting said type bar from said key lever and telescopically fore-shortening said keylever. v

8. In a compactible typewriting machine, the combination of a keyboard, type mechanism'connected with said keyboard, means for moving said type.mechanism into a compact position, means for fore-shortening said keyboard, and geared connections between the last two recited means.

a' pivoted type bar connected with said key 7 9..In. a typewriting machine, the com- 4 bars into extended formation and into come 1. In a compactible typewriting machine,

pact formation, a space bar that can 'be moved toward the rear of the machine into compact position, and a gearedconnection between said space bar and said type rest.

10. In a compactible typewriting ma- 12. In. a compactible typewriting machine, the combination of a oontractible keyboard, a compactible type mechanism, and a com actible frame.

13. *a compactible typewriting machine, the. combination of telescopic key levers, compactible type mechanism, and a compactible frame.

85 A 4:. In a compactible typewriting machine 14. In 'a typewriting machine, the comchine, the combination of telescopic key levers, a bar extending across said levers and movable to telescope them, a compactible frame, and .means whereby the motion of said bar to telescope said key levers 1s con- 1 nected with the means for compacting said frame.

16. In a compactible typewriting machine, the combination of a frame including two parts, movable connections between said two parts permitting motion into a compacted relation of said two parts, keys mounted in said frame, and means operatively connected with sald movable connections for moving said keys 1nto a compacted formation, whereby a compacting or expanding of the keys causes a compacting or expanding of the frame or vice versa.

17. In a compactible typewriting machine, the combination of a frame including two parts, parallel links connecting said two parts and permitting one of them to move into and out of compacted relation to the other, a set of keys mounted in said frame, and means connected with saidlinks for compacting said set of keys.

18. In a compactible typewriting machine, the combination of a frame including two parts, means connecting said two parts to allow of a motion of' one of said parts into downward compacted relation to the other, a keyboard, and means connected with the first recited means for fore-shortening said keyboard during the downward movement of the frame part.

19. In a compactible typewriting machine, the combination of a frame comprising two parts, one over the other, the'upper part carrying printing mechanism including a keyboard .movable downward toward the lower frame'part, and means for foreshortening' said keyboard during the down-.

ward movement of said upper frame part.

20. In a compactible typewriting machine, the combination of a set of type bars, means for operating the same including a set of key levers, and other connections between the key levers and "the type bars by which when the key levers are moved rear-- wardl the type bars are caused to descend.

21-. n a compactible typewriting machine, the combination of a series of keys and key levers lncluding telescopic ke levers, means extending transversely o the machine for telescoping and extending said telescopic key levers, and a collapsible frame operatively connected with said telescoping and extending means. p

22. In a compactible typewriting machine, the combination of a series of keys, means including a space bar for changing the formation of said series of keys to an expanded formation and a contracted formation, and a collapsible frame in which said keys and space bar are mounted and to which said expanding and contracting means is operatively connected.

23. In a compactible typewriting machine,'the combination with two relatively collapsible frame-parts, links connecting said frame-parts, type bars mounted in one of said frame-parts, a type rest, and supports 46 for said type rest, of means for extending and compacting said type rest with relation to. said frame-parts, said means including extensions 48 to certain of said links and horizontal guide links 50 pivoted to one of said frame-parts in front,

' board and a frame comprising side bars 57 and a transverse bar 54, said side bars bemg made 1n telescopic sections, of racks on saldsections; pinions, one running between the racks of the two sections of each side bar; and means for further compacting the machine operatively connected with said pinions.

25. In a compactible typewriting machine, the combination of a compactible set of printing keys, a space-frame comprising a space bar and side bars made in telescopic sections, racks on said telescopic sections, pinions one running between the two racks of each side bar, and means for further compacting the machine operatively connectedwith said pinion.

26. In a compactible typewriting machine, the combination of a compactible set of printing keys, a space-frame comprising a space bar and side bars made in telescopic sections, flanged racks on said. 'telescoplc sections, pinions one running between and guided by the two flanged racks of each side bar, and means for further compacting the machine operatively connected with said 28. In a compactible typewritingmachine, the combination of aset of type bars, a type rest movable to two positions to extend and compact said set of type bars, a set of printing keys, means for compacting said set of printing keys, and connections including bell cranks 67between said-key-compacting means and said type rest.

29. In a compactible typewriting machine, the combination of a' set of type bars, a type rest movable to two positions for extending and compacting said set of type bars, means for further compacting the machine, and connections including the geared segments 70 and 71 between said further compacting means and said type rest.

30. In a compactible typewritingmachine, the combination of a set of type bars; a type rest movable to two positions to extend and compact said set of type bars; con- J trolling means for said type rest including links 50 and toothed segments71; a set of printing keys; means for compacting said set of keys; and connections from the last recited compacting means to said segments 71, said connections including the levers 67 cross bar for extending said telescopic key levers, and links connecting said cross bar with said side bars and adapted to allow of the operation of said space bar for spacing purposes without bodily moving said cross bar.

Signed at Washington, in the District of Columbia, this 28th day of June, A.D.'19l 8.

JOHN H. BARR.

Witnesses:

BESSIE A. STEVENS, FREDA W, SoImFFLAR.

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