US1535153A - Typewriting machine - Google Patents

Description

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M. GARBELL TYPEWRITING MACHINE Filed March l0, 1924 4 Sheets-Sheet 2 @April 2s, 1925.

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1,535,153 M. GARBELL TYPEWRITING MACHINE Fild March 10, -1924 4 Sheets-Shet 4 fwehzof' MW Maz @arbe/I estaria ELL, OF CHICAGO, JILLXNOS.

TYPEWRITING MACHINE.

.Application led Mar-ch 10, 1924.

To all 107mm t may concern.'

Be it known that I, MAX GARBELL, a citizen ot' the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and uset'ul Improvements `in Typewriting Machines, of which the following is a speciication.

The invention relates to typewriting machines and primarily to that type whose construction permits the machine to be collapsed and arranged to provide a compact structure to facilitate its being transported with convenience or stored away without consuminev an creat amount of s ace and which is also capable of being quickly and easily set up for use when this is desired.

-The invention has among `its various objects the provision of a simplified type bar actuating mechanism which is direct in its action and which is capable of aiiording the necessary movement to properly actuate the type bar and in addition permits the type bar to assume a position which adds to the compactness of the structure when arranged in a collapsed condition and to accomplish these advantages without the necessity of employing links, etc., to permit the necessary movement of these parts.

It is an object ot the invention to provide a platen carriage escape mechanism and to actuate the escape mechanism upon each actuation ot' a type bar by means provided upon the type bars.

In addition to the above it is an object to provide a basket capable of permitting the type bars, key levers, space bar lever, shit't key levers and certain gear segments to be secured thereto and supported thereby.

lt is another object to employ a segmental toothed rack and to connect a key lever directly to it and to associate a type bar provided with a segmental pinion with said toothed rack so that the action of the key lever will be transmitted directly to the type bar.

lt is a further object to provide the type bar with a cam shaped portion for the purpose ot' engaging an escapenient which controls the platen movement in one direction.

rlhe invention will be explained and more readily understood when readin conjunction with the accompanying drawings, which illustrate various constructions of which the invention is susceptible, it being Serial No. 698,032.

therefore obvious that other changes and other modifications may be resorted to without departing from the spirit of the invention as expressed in the appended claims forming a part hereof.

Referring to the drawings,-

Fig. 1 is a central section of a typewriter embodying the invention and showing one of the type bars in elevated position from which it may be moved to accomplish the printing.

Fig. 2 is a view similar to Fig. 1 showing one of the type bars and certain other elements of the structure in a lowered or collapsed position.

Fig. 3 is a top plan view of a typewriter' embodying the features illustrated in Figs. 1 and 2.

Fig. 4 is a section taken on line 4-4 of Fig. y3.

Fig. 5 is a detail view of the basket to which the various key levers, type bars, and type bar actuating mechanism are secured, an

Fig. 6 is a section illustrating a modified type bar actuating construction.

The machine disclosed in the drawings is of the tour-bank key type.

One feature of the invention relates to a type bar actuating mechanism, and in view ofthe fact that the mechanism for actuating one of these type bars is identical in construction and operation with another, an explanation of one will sutlice for an understanding of all. These type bars are adapted to co-operate with a platen mounted on a carriage which is movable transversely of the machine in the usual manner. A platen carriage escapement is provided and is adapted to be engaged and operated so as to release the escapement which controls the movement of the carriage in one direction upon each actuation of a type bar.

The type bar actuating mechanism includes a key lever 10 which is pivoted at 11 to the basket 12. This key lever 10 has an upwardly extending element 13 the extremity of which is forked as indicated at 14. The relative relation of the element 13 and the main part of the key lever 10 produces what is generally known as a bell crank lever. The element 13 of the key lever is provided to engage and actuate a toothed segment 15 vpivoted at 16 to a suitable portion of the basket hereinbefore referred to.

This toothed segment or rack bar 15 is provided with a laterally extending arm 17 to which is attached one end-of a coil spring 18 the opposite end being secured to a stationary part of the frame work such as 19. The element 13 is directly connected to the toothed segment 15 through the medium of a pin 20.

From the foregoing explanation of this structure, it is apparent that a direct connection is afforded between the key lever 10 and the toothed segment 15 which thus eliminates the necessity of the employment of elements such as links to pro'vide the connection. The toothed segment 15 co-operates with gear teeth 21 provided upon an end of each type bar 22, the latter being pivoted at 23 to the basket clearly illustrated in Fig. 5. It is evident that upon the depression of the key lever that the action thereof will he transmitted to the type bar through the agency of the toothed segment 15, the teeth of which engage with the teeth provided upon an end of the type bar. By referring to Fig. 2, it will be seen that this structure permits a type bar such as 22 to assume a lowered or collapsed position, or, in other words, to be moved from the substantially vertical position thereof shown in Fig. 1 to a substantially horizontal position, which will reduce the dimension of the machine and result in providing a more compact arrangement which may be more conveniently transported or stored in a relatively smaller space.

By reference to Fig. 2, it will be seen that when the type bars are arranged in a horizontal or collapsed position, the action of a coil spring such as 18-upon the toothed segment 15, tends to maintain the type bar in this last named position, in which position it will remain until again caused to assume the full line position thereof shown in Fig. 1. By referring to Fig. 1, it will be seen that the type bars such as 22 when in their elevated position, rest against a stop or cushion generally designated 23, which is of a curved and segmental formation so that it may readily cooperate with all of the type bars when the latter are arranged in the position shown in Fig. 1. This stop or cushion 23 is clearly-shown in Figs. 3 and 4 and includes a frame 25 which extends from one side of the frame of the machine such as 26 to the other 27. This cushion 23 and the frame to which it is att-ached, is adapted to assume an elevated position as clearly shown in Fig. 1, and also a lowered position as illustrated in Fig. 2 depending upon whether or not it is desired to arrange the type bars in either of the positions shown in Figs. 1 and 2. The cushion or stop generally designated 23 is provided with the downwardly extending arms 2S and 29 which are arranged adjacent but in spaced relation to the sides 26 and 27 of the machine frame. The

resales side 26 is lprovided with an arcuate slot 30 within which is adapted to move a portionof a holding element 3l which is connected with the projection 32 extending from the downwardly projecting portion 28 of the frame 25.

The structure associated with the stopor cushion 23 to allow it to move from the position shown in Fig. 1 to that illustrated in Fig. 2, is such that the cushion 23 is moved through parallel planes during its movement to and from one or the other of the positions illustrated in said figures. To accomplish this parallel movement', links 33 and 34 are pivotally and respectively connected to the downwardly projecting members 28 and 29 at 35 and 3G, and these links 33 and 34 are in turn pivotally connected to a suitable portion of the structure at 37 and 38, which will thus maintain the cushion 23 and its frame work in the horizontal position there of illustrated in Figs. l and 2. From the foregoing description of the structure it is manifest that an arrangement is provided whereby the type bars may be moved to and from the position thereof shown in Figs. 1 and 2 and that a direct connection is afforded between the key levers and the actuating mechanism for the type bars whereby the type bars may be moved to and from printing position relative to the platen of the machine. It'is also manifest that an arrangement is provided whereby the cushion is movable to and from a raised or lowered position depending upon whether or not it is desired to set up the machine for use or cause its parts to be collapsed so that it may be conveniently carried and transported.

A type bar guide 39 is also secured to the basket generally designated 12 and extends towards the platen 4l. The platen is mounted upon a carriage generally designated l2 which is automatically operable in one direct-ion by means of a spring or other mechanism such as is usually provided for this purpose. The carriage 42 is mounted upon a slidable frame 43 slidable with relation to a supportimer frame -l-l the latter of which is pivoted at 45 and has a forwardly projecting arm 4G which is bifurcated as indicated at 47 to receive a pin or projection 48 extendingr from the shift Ikey lever 49 which is pivoted at 5() to the main frame of the machine. Upon the depression or elevation of the shift key lever 49, the frame 44, platen carriage 43, and platen will be swung forwardly and rearwardly with respect to the front of the machine through an arc struck from the pivot 45. This arrangement is provided for the purpose of permitting capitals, numerals, or other characters provided upon the type bars, to'be brought into alignment with other written matter provided upon the page or sheet of paper being Written upon. From the foregoing explanation of this structure, it is evident that a simple yet effective structure is provided for the accomplishment of this last named feature. A s previously stated, a means is provided for actuating an escapement which allows the carriage to be 'moved endwise upon each actuation of one of the type bars such as 22. A means'is also provided and connected with the escapement which is operable through the medium of a space bar lever. To accomplish the actuation of the escapement each time a type bar is actuated so as to permit the carriage to move the distance of one character, each of the type bars is provided with a cam face 51, which when a type bar is moved to a printing position, engages with the universal bar 52 also illustrated in Fig. 4. This universal bar 52 extends infront and in the path of movement of the cam portions 5l so that it may be readily engaged by the cams to cause the movement of the escapement 53 so as to permit the carriage to move end-wise of the machine. The universal bar 52 includes the arms 54 and 55 which are respectively pivotcd to a suitable stationary portion of the machine such as indicated at 56. This universal bar is further provided with the rearwardly extending arms 57 and 58 which are in turn pivotally connected with the arms suchas 59, which are in turn secured to the shaft 60, journaled at its opposite ends in a suitable portion of the main frame as indicated at 61 and 62. A coil spring 63 is arranged upon the shaft and acts to move the `universal bar 62 towards the position thereof shown in Fig. l when releasedby the cam portions 51 of the type bars 22.

A rearwardly projecting element 64 is constructed to provide a'detent or holding element 65, which normally engages a pinion 66 provided upon a shaft the opposite end of which is provided with a similar pinion 67 the latter of which co-operates' with a rack 68 which is part of the platen carriage 4Q. The detent or holding element 65 by virtue of its engagement with the pinion 66, prevents the movement of the carriage in an endwise direction, in which position the carriage will be maintained until the universal bar and its associated mechanism is actuated through the medium of the cam 51 of a type bar 22 to move the detent 65, on the pivot 60, so as to release the pinion 66. Upon the movement of the universal bar and its associated mechanism by the cam portion of a type bar upon its pivot 60 so as to release the detent 65 from the pinion 66, a movable holding element 67a is caused to engage the pinion 66 and permit the movement of the carriage Ain an end-wise direction a certain predetermined degree. This holding element 67? is pivoted at 68 to the part -53 and is provided with a projection 69 clearly shown in Fi-g. 3, which projection is designed to engage a stop 70 and limit the movement of the carriage in its end-wise travel in one direction. A spring 7l is employed to restore the movable holding element 6'?a to its normal position, which position it will assume upon the movement of the universal bar 52 to its normal position or the position thereof shown in Fig. l, this latter movemen-t of the universal bar being caused by the coil spring 63.

A means is provided for manually operating the escapement so as to permit the carriage to be shifted end-wise relatively to and independently of the type bars 22. This last named mechanism includes a space bar lever 72 pivoted at 73 having the upwardly extending portion 7 et which is provided with a slot 75 in which one end of a link 7 5 is arranged so that when the universal 'bar and its associated mechanism is moved by the type bar,said space bar will not be affected. To accomplish the movement of the escapement through the medium of the spacer bar 72, the space bar and the escapement are connected together by means of said link 75, thus upon the depression of the space bar, the movement thereof will be transmitted to the escapement which will actuate the escapement and allow the carriage to be moved end-wise a certain predetermined distance as hereinbefore described.

The modified structure shown in Fig. 6 corresponds with that previously described with respect to the type bar actuating mechanism, but differs in that the type bar cushion 23a is stationary and mounted in a carrier 23 which is immovably secured to the main frame of the machine.

From the foregoing explanation of the structure it is manifest that a simple and effective structure is provided for directly actuating the type bars upon each actuation of the key levers, and that said means permits the type bars to be raised and lowered into and from a printing position so as to atl'ord the compactness necessary in a typewriting machine of this character. lt is further manifest that the structure is such that the type bar cushion may be raised and lowered upon the raising and lowering of the type bars. It is also evident the a simple and effective construction is provided for ,moving the platen carriage transversely of the length of the platen so as to position the platen to permit different characters to be brought into alignment with others provided upon the sheet being printed.

Having thus described my invention, what I claim and desire to cover by Letters Patent is:

l. In a collapsible typewriter, the combination of a pivoted type bar adapted to be moved from a substantially horizontal position upon one side of the pivot to a vertical position and from said vertical pollt) sition to a substantially horizontal printing position upon the opposite side of said pivot, a pivoted key lever and a pivoted member providing a connection between the key lever and the type bar,l the pivot of the key lever and said member being arranged adjacent each other, the key lever being connected to said member between the ends of said member, said member having an arm extending laterally therefrom and a spring connected to said arm and reacting between said arm anda stationary part of the frame of the machine.

2. In a collapsible typewriter, the combination of a pivoted type bar adapted to be moved from a substantially horizontal position upon one side of the pivot to a vertical position and from said vertical position to a substantially horizontal printing position upon the opposite side of said pivot, a pivoted key lever and a pivoted rack bar providing a connection between the key lever and the type bar, the pivot of the key lever and said rack bar being arranged adjacent each other, the key lever being connected to said rack bar between the ends of said rack bar, said rack bar having an arm extending laterally therefrom and a spring connected to said arm and reacting between said arm and a stationary part of the .frame of the machine.

3. In-a collapsible typewriter, the combination of a pivoted type bar adapted to be moved from a substantially horizontal position upon one side of the pivot to a vertical position and from said vertical position to'a substantially horizontal printing position upon the opposite side of said pivot, a pivoted key lever and a pivoted member providing a connection between the key lever and the type bar, the pivot of the key lever and said member being arranged adjacent eachother, the key lever having an arm connected tosaid member between the ends of said member, said member having an arm extending laterally therefrom and a spring 4connected to said arm and reacting bet-Ween said arm and a stationary part of the frame of the machine.

et. In a. collapsible typewriter, the combination of a pivoted type bar adapted to be moved from a substantially horizontal position upon one side of the pivot to a vertical position and from said vertical position to a substantially horizontal printing position upon the opposite side of the pivot, a pivoted key lever having an arm, a. pivoted member lto which said arm is connected, said pivoted member providing a connection between the key lever andthe type bar, the pivot of the key lever and said member being arranged adjacent each other, the

its printing position to said substantially vertical position.

5. In a collapsible type-writer, the combination of a pivoted type bar adapted to be moved from a substantially vertical position to a substantially horizontal printing position, a pivoted key lever having an arm extending upwardly from the pivot, a pivoted member the pivot of which is located adjacent the pivot of the key lever, the arm of the key lever being connected to said member intermediate the ends of said member, a forked connection. between said arm and member, a spring connected to said member, said springbeing located at one side of the pivot of said member and connected to a stationary part of the machine trame and acting to maintain the type bar in an elevated position.

6. In a collapsible typewriter, the combination of a pivoted type bar adapted tobe moved from a substantially vertical position to a substantially horizontal printing position, a pivoted key lever having an arm extending upwardly from the pivot, a pivoted member the pivot of which is located adjacent the pivot of the key lever', the arm of the key lever being connected to said member intermediate the ends of said member, a slotted connection between said arm and member, a spring connected to said member, said spring being located at one side of the pivot of said member and connected to a stationary part of the machine frame and acting to maintain the type barl in an elevated position.

7. In a collapsible typewriter, he combination of a pivoted type bar a apted to be moved from a substantially vertical position to a substantially horizontal printing position, a pivoted key lever having an arm extending upwardly from the pivot, a pivoted member the pivot of which is located adjacent the pivot of the key lever, the arm of the key lever being connected to said member intermediate the ends of said meml ber, a slotted connect-ion between said arm and member, a spring connected to said member, said spring heilig located at one side of the pivot of said member and connected to a stationary part ot' the machine frame and acting to maintain the type bar in an elevated position, said type bar having means for engaging and actuating a carriage escapement mechanism.

MAX GARBELL.

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