US1342186A - Typewriting-machine - Google Patents

Description

33 28 32 l 26 ..-:I: 30833 .52 l 26 magha 25 24 54 WITNESSES iNVENTUR H15 ATTURNEY Patented June 1,1920.

UNITED STATES earner QFFHCE.

GEORGE A. SEIB, 0E ILION, NEW Yonk, AssIeEon T0] nEivrrive'roiv TYPEWRITER COMPANY, or ILION, NEW YORK, ACOR1ORATION on NEW YORK.

Specification of Letters Patent.

Application filed February 10, 1919. Serial No. 276,050.

To all whom it may concern:

Be it known that I, GEORGE A. SEIB, citizen of the United States, and resident of Ilion, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Typewriting- Machines, of which the following is a specication.

My invention relates to typewriting machines, and it has for its principal object to provide an improved mount or bearing for certain parts of such machines. The immediate specific object of the invention is to provide an improved mount for the socalled oscillator of one form of Reming ton typewriters, said oscillator being a rocking frame constituting part of the universal bar mechanism; but the invention" is capable of use in other situations than the precise one mentioned. By my improvements provide a better mount and bearing than was formerly employed and especially in respect to the facility with which it may be accurately adjusted so as to avoid undue friction in the parts and so as to cause the universal bar to be operated freely and in a uniform manner by all ofthe type bars and in turn to operate thedog rocker always to the same extent.

To the above and otherends my invention consists in certain features of construction and combinations and arrangements of parts all of which will be fully set forth herein and particularly pointed out in the claims. i r

One formof my invention is illustrated in the accompanying drawings in which- Figure 1 is a front to rear vertical sec tional view of so much of a Remington typewriter as is necessary to illustrate the embodiment of my invention therein, the section as to most of the parts being taken on the line a: or of Fig. 2 and looking in the direction of the arrow at said line, and the type bar segment being shown in central section. V I V Fig. 2 is a rear elevation of my invention, part of the frame being shown in section on the line y 3/ of Fig. 1 and someof the parts being shown in section on another line.

Fig. 3 is an isometricview of some of the my present invention.

parts separated from oneanother for clearer illustration. I

Fig. 4 is a fragmentar View, partly in section, on the line a z of ig. 2. r

The main frame of the typewriting machine shown in the drawings includes among other things a top plate 1 supported from a base by four posts 2, a fragment of one of which is shown. A type bar segment Sis secured to the top plate 1 and is formed with a series of radial slots 1in which. type bars 5 are mounted in a manner commonin the art, said type bars being pivoted on ,a wire 6 mounted in a suitable slot in the rear face of the segment. An arc-shaped uniface of the segment 3 and said universalbar is adapted to be struck by apart 10 of each from the middle part thereof and a guide pin 12 projects from said ear toward'the front of the machine through a hole in the segment 3. Said universal bar also has projecting rearward therefrom two integral arms 13 which at their rear ends are pivoted by means of screws 14 on upstanding arms 15 constituting parts of the oscillator. Said oscillator comprises also a cross bar or rock shaft 16 and a third upright arm 17, the last forked at its upper end and having a screw 18 which is embraced by the forked forward end of alink or push bar 20 which at its rear end is arranged to operate the dog rocker'(n0t shown) of the machine. I have shown mounted on the oscillator a sheet metal arm 21 which is secured to the cross bar or rock shaft 16 by means of two screws'22 but this arm constitutes no part ,of The function of it is to cooperate'in certainrespects with the ribbon vibratormechanism of the machine, although the arm doesnot operate said vibrator mechanism.

The oscillator isapivotally mounted on: two cone pivots 23 which in the present instance are shown as screws passing Patented June '1, 1920.

versal bar 7 lies in a slot 8 cut in the rear through threaded bosses 24 fixed to or integral with the lower ends of plates or mounts 25, fastened by means of screws 26 to the sides of brackets or lugs 27 depending from the top plate 1, which brackets are surfaced off on one side for the purpose. In the present instance these two brackets or lugs 27 are cast integral with said top plate and in former machines they have extended down to and beyond the rock shaft 16 and the pivot screws 23 have been screwed through these brackets. This former method of mounting the pivot screws admitted of the adjustment of said pivots in a right and left-hand direction but not in any other direction. By my invention I give to said pivots a universal adjustment. To that end the screws 26 pass through holes 28, Fig. 3, in. the plates 25, said holes being larger than the shanks of the screws so as to admit of the necessary adjustment of each of the plates both in an up and down direction and also in a front and back direction. In order to prevent disturbance of the adjustment of the plates by the act of tightening the screws 26, a washer 30 is provided on each of said plates, said washer having two holes, one for each of the two screws 26.

The manner of adjusting the oscillator pivots :may be as follows :The universal bar is mounted on the oscillator by means of the screws 14:, and said universal bar is put in place in the machine with the guide pin 12 inserted in its guide opening in the segment 3. .Meanwhile the plates, mounts or hangers 25 have been put in position with the screws 26 screwed in only enough to hold said plates lightly in position but not tight enough to prevent slipping of the plates in any direction and the screws 23 are partially withdrawn so that their coned or tapered ends are loose in the tapered ends or sockets of the rock shaft 16. The universal bar is then pressed firmly toward the front of the machine so that it lies fiat and true against the forward wall or bottom of the slot 8 at all points. I As the universal bar occupies an arc of approximately onethird of a circle this will position the arms 13 exactly both as to front and back position and also up and down and also toward theright and left. With the universal bar held'firmly in this position the screws 23 are cautiously screwed into proper engagement w1th the conical depressions in the ends of the rockshaft 16. As each pivot is screwed intoits said depression it automatically alines itself with said' depression. For example, if the screw is arlittle too low the act of bringing it into the conical depression in the end of therockshaft 16 7 tends to cam the screw and its plate 25 upward. As these screws approach arbearing fit'in the ends of the rock shaft, if the two process of adjustment.

screws are not in exact alinement in a front and back direction with the position of the rock shaft as determined by the rigidly held arms 13, then one of the screws will be moved slightly toward the front or the rear as the occasion requires. Thus if one of the arms 13 is a little longer than the other or if the two arms 15 are not in exact parellelism one end of the shaft will be a little nearer to the front of the machine than the other end, but the screws will automatically accommodate themselves to the situation by the slipping of the plates 25 forward or back, as required. Also if the two arms 13. are not in exact parallelism but if the rear end of one of them is a shade higher than that of the other, the'corresponding end of the rock shaft will also be a little higher. 1

and the screw 23 at that end of the shaft will accommodate itself to the situation by causing its plate or hanger 25 to be slipped:

slightly upward. The adjustment of said hangers can be assisted by a light tapping of the parts with some tool. When the adof these-screws causes a little binding on the pivot screws this can readily be remedied by a slight adjustment of said screws or sometimes by merely striking the parts smartly with a tool. It will be perceived that with this construction the adjustment of the universal bar is made with accuracy and'with The adjustment required, is merely that which is needed on account of.

great facility.

the inaccuracies of manufacture, which inaccuraciesusually are slight. Underthe old construction any lack of parallelism in the two arms 15 had to be corrected by bending one of said arms and any lack of parallel;

ism in the two arms 13 had to be similarly If the tightening, j'

corrected so as to adapt the rock shaft 16- with precision tothe unchangeable position of the pivot screws 23. This was a much more laborious and time-ccnsumlng process and was much less likely to result in ap'erfect adjustment. It will be understood that any. imperfection in this adjustment is likely to result in some cramping of the parts due to a lack of proper coordination between the oscillator and the guide pin 12 and also it is likely to result in the different type bars acting differently on the universal bar as they would do if the front face of. said universal bar were not in exact par allelism with the bottom of the slot 8. p

In order to provide for the possibility of the adjustment of the plates 25 becoming disturbedat some time, as, for example, by a repairman disassembling the parts and failing to put them back properly, I provide}. I

means for making the adjustment perm-anent, althoughit will be understood that least of my invention. I/Vhen the plates 25 are manufactured each of them is made with the two holes 31 conveniently spaced apart. After the adjustment has been completed the workman can insert a hand-drill .into each of these holes 31 and drill on into the bracket 27 holes 32 exactly matching the holes 31, and he can then drive dowel pins 33 through the holes 31 and into the holes 32, taking care to give said pins a tighter fit in the bracket 27 than they have in the plate 25. By this means any accidental displacement of the plates is prevented, and even if they are removed they will be put back into the exact positions to which they had been originally adjusted. In case it is ever necessary to change the adjustment of the plates 25, the pins 33 can, of course be removed, and, if desired, new dowel holes can be drilled.

I have shown the pivot screws 23 provided with lock nuts 34:.

What I claim as new and desire to secure by Letters Patent, is:

1. In a typewriting machine, the combination with a universal bar and an oscillator connected thereto, of pivots for said oscillator, said pivots having each an independent sliding adjustment transversely of the pivotal axis of said oscillator to accommodate said pivots to the pivotal axis of the oscillator as determined by the correct position of the universal bar.

2. In a typewriting machine, the combination with a universal bar and an oscillator connected thereto, of a plate to which said oscillator is pivoted, a stationary part having a surface against which said plate lies, said plate having a sliding adjustment over said surface to accommodate the center of the pivot to the correct position of said oscillator; and means for securing said plate in its adjusted position.

3. In a typewriting machine, the combination with a universal bar and an oscillator connected thereto, of a pivot for one end of said oscillator, a mount in which said pivot is adjustable lengthwise of its axis, and a stationary part to which said mount is secured with provision for a bodily adjustment of said mount transverse to said pivotal axis independently of the other end of said oscillator.

4:. In a typewriting machine, the combination with a universal bar and an oscillator connected thereto, of a plate to which said oscillator is pivoted, a part having a surface against which said plate lies and to which said plate is secured by one or more screws, said screws passing through holes in the plate larger than the screws whereby the plate can be adjusted transversely to the pivotal axis of the oscillator 5. In a typewritingmachlne, the combination with a universal bar and an oscillator connected thereto, of two pivot pins for the two ends of said oscillator, and mounts in whichsaid pivot pins are adjustably mounted, each of said mounts being itself adjustable transversely to the pivotal axis of the oscillator independently of the other mount, whereby each of the pivots can be-brought into correct relation to the oscillator after the position of the universal bar has been determined.

6. In a typewriting machine, the combination with a universal bar and an oscillator connected thereto, of two independent bearings for the two ends of said oscillator, and screws connecting said bearings with the framework of the machine, said bearings having sliding contact with said framework transverse to the pivotal axis of said oscillator, whereby said bearings before the tightening of said screws are capable of slipping on the framework to adjust them to the pivotal axis of the oscillator.

7. In a typewriting machine the combination of a rock frame, a universal bar connected to said frame, means which predetermine the correct position of said universal bar and frame, and two independent bearings for said frame each of said bearings comprising a part mounted on the stationary framework with provision for slipping transversely of the pivotal axis of the frame so as to accommodate said bearings to said pivotal axis, and means for securing said hearings in position.

8. In a typewriting machine, the combination of a rock frame, a bearing for said frame including a plate mounted for sliding adjustment transverse to the pivotal axis of said frame, screws for securing said plate in position, and dowels forrpreserving the adjustment of said plate.

9. In a typewriting machine, the combi- 'nation of a type bar segment having an arcuate slot, a universal bar of like shape adapted to seat at the bottom of said slot, arms projecting rearwardly from said universal bar, a rock-shaft having upstanding arms to meet and be connected to said arms on the universal bar, coned pivots adapted to be seated in coned depressions in the ends of said rock-shaft, hangers carrying said coned pivots and universally adjustable in planes perpendicular to the axis of said rock shaft, stationary lugs or brackets for said hangers, and means for securing said hangers after adjustment on said lugs or brackets.

10. In a typewriting machine, the combination of a universal bar adapted to be actuated by apart of each of the several type actions, a rock shaft, connections between the latter and the universal bar, adj ustable pivots for the rock shaft, adjustable mounts carryin said pivots, and fixed supports for sai mounts; said mounts being 7 independently movable on their supports so as to bring each of said pivots into the axial line of said rock shaft, the position of which is determined by the said connections when the universal bar has been located in the desired position relatively to the actuating parts of the type actions; and'means for securing said mounts in the positions to which they have been moved or adjusted as aforesaid.

Signed at Ilion, in the county ofHerkimer and State of New York this 7th day of February, A. D. 1919. J

p GEORGE A. SEIB. Witnesses:

LINNIE F. BURNETT, ANNA A. BRENNAN.

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