US472870A - Type writing machine - Google Patents

Description

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' E. ALFORD.

TYPE WRITING MACHINE. No. 472,870. Patented Apr; 12, 1892. r 5 4 a 'wmv ssss //v VEN TOR ATTORNEYS (No Mode 1.) 2 Sheets--8heet 2 E. A. FORD. TYPE WRITING MACHINE.

N0. 472,8 0. Patented Apr. 12, 1892.

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- UNITED STATES PATMTIM ES EUGENE A. FORD, OF NEw YORK, N. Y.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 472,870, dated April 12, 1892.

Application filed June 15, 1891.

To aZZ whom it may concern.-

Be it known that I, EUGENE A. FORD, of New York city, in the county and State of New York, have invented a new and Improved Type-W'riting Machine, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which Figure 1 is a plan view, partly in section, of my improved type-writing machine. Fig. 2 is a vertical longitudinal section. Fig. 3 is an end elevation of the type-bars, showing the type-bar guide; and Fig. 4 is an enlarged plan view of the carriage feeding mechanism.

Similar letters of reference indicate corresponding parts in all the views.

The object of my invention is to-construct a simple and efficient type-writing machine in which the type-bars will be made to register accurately and in which a large number of characters may be printed with few keys.

My object is further to provide a simple and eificient quick-acting carriage feeding mechanism.

My invention consists in the combination and arrangement of parts, as hereinafter described, and pointed out in the claims.

To the base A, which supports all the working parts of the machine, are attached rearwardly-curved pillars B, supporting rods a b, and upon the said rods are loosely placed the end pieces 0 of the frame of the paper-carriage 0. In the said frame is supported the paper-supporting roller D. The end pieces 0 are connected by a longitudinal bar cl, carrying a double rack-bar 6. Between ears f, projecting rearwardly from the support g, are placed the pawls hi. The said pawls are held in place by a pin j, projecting through the ears 40 f and through a circular hole in the pawl'i and an oblong hole in the pawl h. The pawl h is provided with a right-angled arm is, furnished with a downwardly projecting .V- shaped finger l, which engages the teeth of the rear surface of the rack-bar e. The pawl is furnished with'a V-shaped finger m, which engages the forward side of the rack-bar e. In the pawl h, near its free end, is inserted an adj I'lStlllg-SCIQW n, which normally rests upon the side of the pawl 2' at its free end. The pawl h is held in engagement with the Serial No. 396,215. (No model.)

teeth of the rear side of the rack-bar by a spiral spring 0, connected with the pawl and with a fixed support. The pawl-and-ratchet mechanism is operated by a rod 19 in the man ner presently to be described.

To a fixed support in front of the papersupporting roller D is pivoted .a triangular type-bar guide E, the smaller end of the guide, adjoining the paper-supporting rollerD, being provided with an opening of the width and height of the 7 end of one of the type-bars. The narrower end of the guide E normally rests upon the top of the support g, so that the guide is used in this position while prints ing the frequently-recurring letters and characters. In standards q r, attached to the base A, are pivoted levers s if, provided at their rear ends with studs 1) w for engaging and lifting the type-bar guide E. The stud 'w is made shorter than the stud 1), so that when the le ver 25 is tilted and the stud is raised until the free end of the lever t strikes the angled upper end of the support 9 the type-bar guideE will be raised sufficiently to bring the central letter or character on the end of the type-bar into position for printing. In asimilar manner the longer stud 4), carried by the lever s, will raise the type-bar guide E when the said lever is moved, so as to bring the lower character on the end of the type-bar into position .for printing. The forward ends of the levers s t are connected with rods a b, which extend upwardly through the casing F of the machine, and are provided at their upper ends with finger-pieces c d, so that by pressing these keys the type-bar guide may be raised in the manner described.

In standards 6, secured to the baseA near the front thereof, are pivoted the key-levers G, which are connected with type-bars H and with rods I, exte'ndingfthrough the casing F and provided at their upper ends with fingerpieces f. ating levers, and parts connected therewith are alike in all respects as to position in the machine and the form of their free ends, a description of one bar and the mechanism connected therewith will answer for the whole.

The lever .G is formed of the longer arm g, the shorter arm h, and the weighted arm 2", extending approximately at right angles in As all of the type-bars, type-oper-.

type-bar, as shown in Fig. 3.

The free end of the type-bar H is widened, and in the present case carries type for producing three letters or characters. the characters may be brought into position for printing by tilting the guideE in the manner already described. To permit of this movement of the guideand at the same time to preserve the alignment of the type, the end of thetype-baris provided above and below with convex projections It. The rod 1 of the carriage-feeding mechanism is pivoted to aportion of th'e'lever Z, which turns on fixed pivots in the lower partof the machine-casing, and connected at their upper ends by a rod m, Thesaid' rod lies in the path of a projection n on: the lower edge of the type: bar, so that a'sthe'type-bar is'm'ov'ed' forward the'im'pact of th ejprojectionn' on the rod m" moves forward the rod 10, which pushes the pawl; forw'ard,so as to bring the projection m into engagement withth eteeth o n the front siide'ofthe ratchet-bar e, at se ame time, ihrougiruwmeai m of the screw 02, pushing the triangularfingerl out of engagement with the ratchet-teeth on the back side of the bar 6, thereby releasing the bar from the pawl" h and causing it to beheld by the pawl cl the same time the spring 0' draws the pawl it forward ready for re-engagement with the ratchet-bar after its release, which occurs when the rod 19 moves forward, allowing the pawl 43 to slip out of'engageme'nt with the ratchet-ban The carriage after the release of the ratchet-bar in the manner described is moved forward one notch by a spring or weight in the usual way.

To provide for spacing withoutprinting, an angled lever 0', pivoted in astandardprojecting from the base A, is connected at one end by a rod 19' with the levers l, and is pivotallyconnected at the other end with the rod g, which extends upwardly through the easing and is furnished with a finger-piece r. Wheneverit is desired to space without print ing,the pressure of the finger upon the fin ger-piece r tilts the lever 0,, pushes forward therod p, and releases the feeding mechanism in the manner already described. An inking-ribbon of the usual description will be interposed between the type-bar guide E and the paper supported by the roller D.

To facilitate cleaning the type, the sides of the type-bar guide E are provided with hinged doors 8, which may be opened for the introduction of a brush. The central type-bars Either of are-made straight; but the lateral ones are curvedslightly to accommodate them to the type-bar guides.

Having thus described my invention, I claim as new and desire to secure by Letters Patentj 4 1. In a type-writing machine, the combination of a series of type-bars H, the fixed slotted guide J, the triangular type-bar guide E- for causing the type-bearing ends of the typebars to register, and the type-bar-actuating mechanism consisting of levers G, rods Land finger-pieces f, substantially as specified.

2 The combination, with the horizontal plat-en, of the vertically-swinging hollow guide having its sides converging'toward the platen, levers; acting against the lower side of the hollow guide to raise itrinto two new positions, a'series of type-bars havingyertieallyaligned type or characters on, their'forward ends, and operating devicesfor projecting the type-bars forwardly through the hollow guide and its contracted forwardend in'topcon't'act with theplaten or paper thereon substantially assetforth; w w j l 3 In a typewriter, the combination,w'ith a series of type-bars converging at theirforward ends, each provided" with verticallyaligned type or characters, and keys having-a lever connection with the rear ends of the bars, of a hollow vertically-swinging guide hinged at its rear endand having a, contracted'opening atitsforward end of a size tofirmly guide the forward endof a single type-bar,vcr tieally-' swinging levers beneath the saidhollow guide and constructed to raise itsforwardendinto two new positions, an a key'rne'chanism adja: cent to the keys of the type-bars to beopera'ted simultaneously therewith or separately and connected with the guide-elevating levers,

substantially as setforth. r

4:. The combination, with a series of'horizontal levers pivoted near their forward ends, a series of converging typebars pivoted'at their lower ends to the long arms of saidlevers and inclined upwardly and forwardly there} froni, vertically-aligned. type or',c'l1a1'acters on the forward end of said bars, and a series of vertically-extending key-rods pivotedat their lower ends to the forward ends ofsaid levers to raise the type-bars into a horizontal po si tion and project them forwardly to a cornmon printing-point, of a'vertically-swinging' hollow guide pivoted at its rear'end adjacent to the upper forward ends of the type-bars, and levers acting on the said hollow guide to elevate its free end into two new positions,

substantiallyas set forth.

5'. The combination, with the inclinedconverging type-bars,each having on its forward end Vertically-aligned type or characters, the keys connected with said bars, and a stationary bar having vertical slots, through which the converging upper ends of the type-bars pass, of a'vertically-swinging hollow guide pivoted at its rear end adjacent to the upper forward ends of the type-bars and tapering macro s forwardly to receive and firmly guide the printing end of a single type-bar, and keyactuated levers acting on the lower side of the hollow guide to raise it into two newpositions, substantially as set forth.

6. The combination, with the verticallyswinging hollowtype-bar guide and a rest limiting the downward movement of its forward end, of the vertically-swinging key-levers extending forwardly under said guide and beneath its rest to engage the latter when their forward. ends are swung up, and upwardly-projecting studs on the forward ends of said levers and one projecting higher than the other to engage the lower side of the hollow guide and raise its forward end into two new positions, substantially as set forth.

7. The combination, with the paper-carriage, its spacing mechanism having a keyoperated rod, and intermediate vertical levers pivoted between ,their ends to the said rod and connected at their upper ends by a cross bar or rod, of the inclined type-bars crossing at their forward ends the said cross-bar and having depending lugs to engage it and rock the vertical levers forwardly to actuate the spacing mechanism, vertically-aligned type or characters on the forward ends of the said bars, keys for actuating the type-bars, and a vertically-swinging hollow guide contracted at its forward end to form a common printing-opening and pivoted'at its rear end adjacent to the upper ends of the type-bars, and key-operated levers acting on the lower side of the hollow guide to raise its forward end to two new positions, substantially as set forth.

8. In a type-writing machine, the combination of the type-bars H, provided with projections n, the levers Z, and pawl-and-ratchet mechanism connected with the paper-carriage and arranged to be operated by the impact of the type bar through the'levers Zv and their connections, substantially as specified.

9. In a type-writing machine, the combination, with the paper-carriage and printing mechanism, of the double ratchet-bar e, attached to the paper-carriage, the pawl i, adapted to engage one side of the ratchet-bar, the slotted pawl h, adapted to engage the opposite side of the ratchet-bar, the adj ustingscrew n, inserted in the pawl h and bearing upon the pawl 'i, and the retractilespring 0, connected with the pawl h and with a fixed support, substantially as specified.

E. A. FORD.

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