US506352A - Type-writing machine - Google Patents

Description

l TYPE WRITING MAGHINR u 2. .,.fu nu. .e .nv s m e e h s 2 E N I .m BA BM WN .H BM G.W .Du D.. Y T

(No Model.)

Patented ont. 10, 1893.-

r NrrEn TATES ATENT EErcE.

GEORGE B. WEBB, OE NEW YORK, N. Y., AssIGNOR, BY MEsNE ASSIGNMENTS, To THE WYOEOEE, sEAMANs a BENEDIOT, OE NEw YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 506,352, dated October 10, 1893. Application filed December 26, 1890. Renewed March 13, 1893. Serial No. 465,730. (No model.)

. New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My present invention relates to the carriage-feeding or escapement mechanism of .type-writing machines, and has for its main object to provide means whereby the papercarriage may be released either after the irnpression has been made or before the impression has been made, at the will of the operator. f

In the machines heretofore made the escapement devices were arranged to release the carriage after the type-bar had ascended and printed-and when it was about half-way back to its normal position of rest. To this arrangement numerous objections exist, which maybe overcome by releasing the carriage while the type-bar is moving to print and by printing while the carriage is in actual transit from one notchor space to the next, all as more fully set. forth in another application filed by me simultaneously with this. As some operators may, however, desire to have machines which work onthe old plan of releasement and some on. the new, I have devised means whereby the machine is capable of adjustment for either plan, thus avoiding the necessity of building two kinds of machines to suit the tastes or desires of all purchasers.

My invention consists in the features ofy construction and combinations of devices hereinafter more fully described and partic-y detail sectional View of the dogs arranged to operatev on what I call the new plan, the parts being in their normal positions or at rest. Fig. 4 is a similarview of the same arrangement but with the.V parts in their shifted or working positions. Fig. 5 is an enlarged detail elevation viewed from the front of the machine, and Fig. 6 is a perspective view of the same.

In the several views the same part will be found designated by the same numeral of reference.

The machine represented generally is the well-known Remington machine, 1 designating the frame-work, 2 the top-plate or typering, 3 the type-bars, 4 the connecting-rods, 5 the key-levers, 6 the type-rest or basket, 7 the paper-carriage, 8 the platen of said carriage, 9 the spring-actuated driving or propelling drum or disk, and 10 the pulling band or belt connecting the same with the papercarriage.

The paper-carriage is provided at its rear side with anti-friction wheels 11 which travel on a hinge-and-guide-rail12 mounted in supports 13 on the framework or top-plate.

To the rear of the paper-carriage is hinged as usual a frame 14, which is provided with a vertically-arranged feed-rack.

Beneath the key-levers is a transverse universal-bar 16, connected at each end bya link 17 to a cross-bar 18 which is joined to a rockerarm 19 pivoted at 20 in ears 2l at the lower end of an upright dog-holder 22, which is provided with lateral trunnions 23, supported by pivot-pins or journals 24, fixed in lugs 25 on the rear side of a depending bracket or plate 26.

4On one of the trunnions is arranged a collar 27 to which is connected one end of a volute returning-spring 28, the other end of which is hooked over a bar 29, formed by cutting an opening 30 in the bracket or plate 26. The tension of said spring may be increased or diminished by an adjusting screw 3l as heretofore.

The dog-holder is provided with an oifset 32 to which and to the dog-holder is pivoted at 33 the lower end of a dog 34, for which is provided a coiled-spring 35. The said spring is connected at one end to the dog-holder and at its other end bears against the dog 34, to force it toward the right, looking from the front of the machine, and against a cushioned stop 36, on the end of a bar, which is attached to the dog-holder by a screw 37, passing IOO through an elongated slot 3S, and which is adjustable lengthwise to govern the throw of said dog, by a screw 39 and nut 39, as heretofore. The said dog 34 is preferably made in two parts, the said parts being pivoted together at 40. The upper' end of the lower portion is provided with a lateral jaw 4l, and the lower end of the upper portion is provided with a similar' jaw 42, the said jaws being beveled or chamfered to provide on the right hand side a space 43 to permit of the upper portion being vibrated about the pivot 40, and against the tension of a spring 44,whose function is to normally hold the .upper portion of the dog upright and the said jaws in contact or closed as seen at Fig. l. The upper end of the dog-holder is providedin rear of the dog 34 with a rigid or fixed dog 45, which is secured in position by a screw 46.

To the back of the dog 45 is attached by a screw 47 an arm or plate 43 which extends forwardly past the dog 34 and supports a third dog 49, which is pivoted at 50 to said arm 43 and which is provided with a lateral extension 51, against which presses a spiral spring 52, whose purpose is to hold said dog normally upright and in contact with the side of the arm 48, which forms an abutment for said dog, as well as for the dog 34, when the carriage-feed is taking place.

Formed as an extension of the rocker-arm 19 is an arm or bracket 53, arranged in rear of the dog-holder to the upper end of which is pivoted at 54, a cam-lever 55, having two flat faces 56 and 57 adapted to contactwith the back surface of the dog-holder. The said camlever is designed to move the dog-holder about its pivot-pins or adjust its position and the dogs thereonrelatively to the feed-rack. When the lever is turned so that its face 56 rests against the dog-holder, the latter is adjusted to a position to throw the dog 49 out of use, as seen at Fig. 1, and in this adjustment of the `parts the machine is arranged for operation in accordance with the old plan of `carriage-feed. lVhen the lever is turned so that its face 57 lies in contact with the dog-holder, the latter is adjusted to a posi-` tion to throw the rigid dog 45 into disuse, as seen at Figs. 3 and 4, and in this adjustment` of the parts of the machine is arranged for operation in accordance with the new plan ofl construction is preferred on account of the ease and quietness with which the carriage may be returned to the right after completing a line, said dog ryielding readily at its up-` per pivot as the teeth of the rack bob over the point of the dog.

The dog 45 I designate the carriage detaining-dog as it operates to detain the carriage when the dog 34 is out of engagement with the rack, in edecting the old kind of feed.

The dog 49 I designate the carriage-holding-dog as it serves to hold the carriage when the machine is not being used and when the parts are adjusted for the new kind of feed.

Referring to Fig. 2, the parts are arranged for the old feed and normally the feedingdog 34 stands in engagement with the rack and in contact with the. cross-bar 43 to which it has been moved by the superior force of the carriage driving-mechanism. p

It' a key-lever be depressed the type-bar will be lifted to make its impression and at the same time the feeding-dog 34 will be rocked forward out of engagement with the rack and the detaining-dog 45 rocked into e11- gagement therewith, to prevent any movement of the carriage. As soon as the feedingdog is withdrawn from the rack its spring 35 throws it to the right one notch against the stop 36, as illustrated at Fig. 5, but out of the plane of the rack. When the key-lever is rcleased the type-bar descends and while descending and when about half-way back to its seat or rest, the spring 2S returns the dogholder and rocks thedetaining-dog 45 out of the rack and the feeding-dog 34 back into the rack but in rear of the tooth it formerly engaged. The instant this takes place, the driving-power is free to act andthe carriage is moved onward, with the feeding-dog 34 until the latter abuis against the cross-bar 4S and comes into line with the dog 45, when the carriage is arrested. In themeantime the typebar has arrived at its seat.

When it is desired to have the carriage-feed step-by-step in the new way, and the parts have been adjusted as shown at Fig. 3, it will be observed `that the holding-dog 49 stands normallyin engagement withthe rack, in lieu of the feeding dog 34, as inFig. 2. By reason of the pivoted construction of this dog 49, the carriagemay be returned at the end of a line easily and noiselessly, but if this feature be not desired the dog 49 may be maderigidor fixed in thesame manner that the dog 45 is. If a key-lever be depressed the type-bar will be elevated as before, but when it is about half-way up to print, the dogholder rocking simultaneously `(throingh the universal-bar and the connections referred to) throws the holding-dog 49 forward out of engagement with the rack and the feeding-dog 34 into engagement therewith, as seen in Fig. 4. l/Vhen this occurs the carriage commences its feeding movement and continues until the feeding-dog has been straightened up and brought into contact with the cross-bar 48. The movement of the type-bar is so timed as that while the carriage is in transit (and `preferably at the beginning of itstravel when it is moving slowly or has moved about two or three thou- IOO IIO

sandths of an inch) the type completes its as-v cent and eifects its impression.

During the descent of the type-barand at about the middle of its return stroke the feeding-dog is rocked out of the rack and the holding-dog rocked in as seen at Fig. 8. While the type-bar is finishing its movement to its seat, the feeding-dog under the inliuence of its spring 35 is vibrated to the right one notch as before.

It is evident that quite a number of changes in detail construction may be made without departing from the gist of my invention.

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

1. In a type-writing machine, the combina-- tion with a paper-carriage having a feed-rack,

of three dogs adjustable relatively to said rack to release the' carriage either before-or after the impression has been made, at the will of the operator; substantially as described.

2. In a typewriting machine, the combina tion with a paper-carriage having a feed-rack,

of three dogs, mounted upon a pivoted dog-v holder, and a lever for moving said dog-holder and adjusting said dogs relatively to said rack; in order that the carriage may be released either before or after theimpression has been made at the pleasure of the operator, substantially as described. Y

4. In a type-writing machine, the combination with a paper-carriage having a feed-rack,

uating said rocker-arm; substantially as set forth.

5. In a type-writing machine, the combina- .tion vwith a paper-carriage having a rack, of a vibratory dog-holder, a holding-dog, a detaining-dog,and an intermediate feeding-dog; the combination and arrangement being such, as described, that the said dogs may be adjusted to release the carriage either before or after the impression has been made at the pleasure of the operator, substantially as set forth.

6. In a type-writing machine, the combination with a paper-carriage having a rack, of a vibratory dog-holder, a rigid detaining-dog, a pivoted spring-acting holding dog, and a pivoted spring-acting, fee`dingdog arranged between the holding-dog and the detaining dog: the combination and arrangement being such, as described, that the said dogs may be adj usted to release the carriage either before or after the impression has been made at theA pleasure of the operator, substantially as set forth.

7. In a type-writing machine, the combina-vv New York and State of New York, this 18th' day of. December, A. D. 1890. Y

GEORGEB. WEBB.

Witnessesz- GEO. W. WEIFFENBAOH, JACOB FELBEL.

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