US580117A - Type-writing machine - Google Patents

Description

(No Model.) 3 SheetsSheet 1.

G. G. W. PEGK.

TYPE WRITING} MACHINE.

No. 580,117. Patented Apr. '6, 1897.

WITNESSES INVENTOR:

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No. 580,117. Patented Apr. 6. 1897.

INVENTOR; mum 64. M By his Attorney WITNESSES:

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CARLTON O. W. PEOK, OF NEW YORK, N. Y., ASSIGNOR TO THE IVYOKOFF, SEAMANS & BENEDICT, OF ILION, NEIV YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 580,117, dated April 6, 1897.

Application filed July 6, 1896, Serial No. 598,094. (No model.)

To all whom it may concern:

Be it known that I, CARLTON 0. WV. PECK, a citizen of the United States, and a resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-W'riting Machines, of which the following is a specification.

My improvements relate, first, to the provision of means for enabling the operator to effect afeed of the carriage two letter-spaces simultaneously with the impression of the last letter of a word, and, secondly, to the provision of means whereby the paper-carriage I 5 may be retracted a letter-space to enable the insertion of a letter which may have been skipped, or the making of a correction, without using the release-key or pushing the carriage back by direct application of the hand. My improvements consist in the several features of construction and combinations of devices hereinafter more fully described, and particularly pointed out in the appended claims. 2 5 In the accompanying drawings, Figure 1 is a top plan view of a Brooks type-writing machine involving my improvements, the paper-carriage, type-bars, 850., being omitted to conduce to clearness. Fig. 2 is a central longitudinal vertical section with the carriage and type-bars therein. Fig. 3 is a detail perspective view of the carriage-retracting devices. liig. 4 is a vertical section taken at the line so a: of Fig. 1, but with part of the car- 55 riage added; and Fig. 5 is an enlarged perspective view of. the carriage escapement mechanism and the means relating to the first part of my invention.

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

1 designates the general framework of the machine; 2, the paper-carriage; 3, the guiderails therefor; 4,the type-bars 5,the connect- 5' ing-rods, and 6 the key-levers for operating said type bars. The said levers are ful crumed upon a cross-bar 7 and pass through slotted guide-plates 8 and 9, arranged transversely of themachine and attached to the side frames.

The carriage, as usual, is provided with a spring-drum 10, a pulling-cord 11, and a vertically-arranged feed-rack 12, with which cooperates the usual rigid dog 13 and the pivoted springacted dog l4, both of which dogs are mounted on an arm or lug 15, rising from a rock-shaft or rocker-bar l6,extending across the machine and provided with end pivots 1'7.

From said rocker-bar extend rearwardly two arms 18, to which are attached a universal bar 19. The said universal bar likewise eX- tends across the machine and hangs over the rear arms of the letter or character keylevers 6, the arrangement being such, as usual, that when the button or key ends of said levers are depressed their rear ends rise and lift the universal bar, thereby rocking the bar 16 and causing the dogs to vibrate forwardly,a spring 20 being provided to return the rocking frame, composed of the bars 16, 18, and 19, to its normal position upon release of the keylever.

The feeding-dog 14 is pivoted on a forwardly-projecting stud 21 and is provided with a spring 22, which operates to throw the upper or working end of the dog toward the right, viewed from the front of the machine, when said dog is rocked out of engagement with the rack, a notch of which it normally occupies, and when in its normal position the upper portion of the dog bears against a fixed stop 23 on the arm 15. Said dog is provided with a lateral arm 24, which extends toward the right, which arm is adapted to cooperate with either of two movable stops or devices forming a part of the means whereby the first part of my invention is carried out.

On the rocker-bar 16 is pivoted, on the plain portion of a screw 25, a stop 26 and also a parallel stop 27. The stop 26 has an integral o ear or lug 28, to which is attached the inner end of a wire 29, whose outer end is attached to one arm of a bell-crank 30, pivoted at 31 on a stand or bracket 32, which is secured to the framework. Attached at one end to the 5 other end of said bell-crank is another wire 33, whose opposite end is attached to the vertical arm 34 of a horizontally-arranged bail 35, which extends across the machine under all of the forward arms of the key-levers and I00 which is pivoted at 36 to brackets 37, secured to the rear comb or guide plate 8. A spring 38 is provided to hold said bail up against the key-levers and to return it and its connected movable parts to their normal positions upon release of the key-levers. The second stop 27 has an arm 39, which projects toward the left and rests upon the up er edge of the rear arm of the space-key lever 40, which is likewise fulcrumed upon the cross bar 7 and which is adapted to actuate the universal bar 19 when the bar or key-head 41 at its forward end is depressed.

By the means described when a letter-key is depressed alone the carriage feeds one letter-space only, and when the space-key lever is depressed alone the carriage likewise feeds one letter-space only, but when a letter-key and the space-key are depressed conjointly then the carriage feeds two letter-spaces; but I do not claim this improvement broadly, because it is the invention of Byron A. Brooks, whose application for patent was filed simultaneously with this and became Patent No. 572,289, dated December 1, 1896.

The feeding movements of the carriage are effected in the following manner: When any letter-key is struck alone, it vibrates the universal bar 19 and throws the pivoted dog 1% forward out of the rack and the detainingdog 13 into the rack. At the same time the said lever depresses the bail 35, thereby rocking the arm 34, and the movements of the wires or links and the bell-crank cause the pivoted stop 26, which normally stands under the end of the arm 24, to be withdrawn or vibrated toward the right out of the reach of said arm ,which,immediately the dog letleaves the rack, is vibrated downwardly by means of the spring 22, which at the same moment causes the dog-point or working end to vibrate toward the right. The withdrawal of the stop 26 does not, however, have any effect upon the independent stop 27, which at this time remains in its normal position and acts to arrest the downward vibration of said arm 2% and to limit the vibration of the dog 14 to a distance of one tooth or notch of the feedrack. Hence when the key-lever is released and the dog returns to engagement with the rack the paper-carriage will feed the distance of one letter-spa ce only. When the spacekey is depressed, the dog 1a is rocked out of the rack 4, and at the same time the arm 39 is raised and the stop 27 is vibrated toward the right independently of the stop 26. The stop 26 is at this time prevented from like vibration by reason of the provision in the bail of a notch a2, which permits the forward arm of the space-key lever to descend without imparting any motion to said bail and its connected parts. Hence by the mechanism shown and described it will be seen that when either stop is moved the other is left stationary and serves to arrest the vibration of the dog and limit it to a one-space movement.

Now when it may be desired to effect a double-space movement of the carriage any letter-key and the space-key are simultaneously depressed, and when so actuated both the stops 26 and 27 will be vibrated toward the right entirely out of the path of vibration of the arm 24, and the dog will move for a distance of two notches on the feed-rack, and so that when the said keys are released the carriage-will feed the desired two spaces. WVhen both stops are withdrawn, as just explained, the dog is restricted to a two-space vibration by means of a lug 43 on its left-hand side,which at this time comes in contact with the stop or pin 23 on the arm 15.

Thus it will be seen that simple and elfective means are provided whereby during the ordinary type-impressions the carriage is enabled to feed only one letter-space distance, and whereby during the ordinary space-key movement the carriage is likewise enabled to feed but a single letter-space, and by which also when any letter-key and the space-key are simultaneously depressed in the ordinary way the carriage may be fed a double space precisely in accordance with the Brooks invention and without the use of any auxiliary key or any change in the ordinary or regular operations or movements of the letter-keys and the space-key.

I shall now describe the construction and mode of operation of the means for retracting the paper-carriage.

On a suitable supporting plate or stand 44 is mounted a bracket 45, in the ears of which is horizontally supported a rock-shaft 46, which is provided with a crank-arm 47, to which is connected the upper end of a link 48, whose lower end is attached to the rear end of a key-lever L9, pivoted at to said stand and provided at its forward end with a button or key 51. The said rock-shaft is provided at its inner or rear end with a head 52, fashioned or provided with a rearwardly-extending beveled finger 53, adapted to engage the teeth of the feed-rack 12. The said head may be attached to the rock-shaft by a setscrew 54, and said rock-shaft is preferably provided with a return ing-sprin g and with two stop- pins 56 and 57. Normally the finger 53 stands below the plane of the teeth of the feed-rack and does not interfere with the ordinary movements of the rack and papercarria-ge. hen, however, it may be desired to cause the paper-carriage to move back one letter-space to make a correction or to insert a character, the key orhead 51 is depressed, the lever a9 vibrated, the shaft 46 rocked through the intervention of the link or thrustrod 48 and the crank 47, and the finger 53, which is arranged eccentric of the long pivot or shaft -16, is caused to rise and enter one of the notches of the feed-rack, and as the pressure on the key is continued the said finger by bearing against the tooth at the right-hand side of the said notch operates to retract the carriage a letter-space distance, and while the key is thus held down and the carriage is thus retracted the desired letter-key is actuated to print the character in the space thus brought back to the impression-point. After such printing the retracting-key is released and the carriage returns to its first position under the influence of the spring-drum, and at the same time the retracting-finger, with all the movable parts between it, and the key return to their normal positions under the influence of the spring 55.

lVhen the carriage is retracted, as above described, the feeding-dog 14: yields or vibrates with the movement of the rack toward the right, but does not leave the notch with which it is in engagement, and therefore when the retracting-key is released the carriage returns to exactly the same place which it was at before the retracting-key was actuated. The pin 56 stops the return of the retracting means, under the influence of the spring 55, by striking against the bracket 45, and hence determines the normal positions of the devices comprising said means. The pin 57 strikes against the opposite edge of said bracket 45 and limits the depression of the retracting-key, and hence the swing of the finger 53 and the movement of the feed-rack in the retracting operation.

Various changes in construction 7 and arrangement may be made without departing from the several features of my invention, which of course may be embodied in other styles of machines and in connection with feed or escapement mechanisms varying considerably in detail construction.

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

1. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism including a pivoted spring-acted dog, a pair of independent movable stops each adapted to arrest the vibration of said dog and limit it to a one-space movement, letter-keys, means intermediate said letter-keys and one of said stops whereby when any of said letter-keys is depressed said stop is moved, and a space-key adapted only to move the other of said stops; the construction and arrangement being such that when both a letter-key and the space-key are simultaneously depressed both said stops are moved to enable the dog to vibrate two letter-spaces and the carriage to feed a like distance upon the release of both said depressed keys; substantially as set forth.

2. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism including a pivoted spring-acted dog, a pair of independent pivoted stops, one connected to be operated by the letter-keys and the other connected to be operated by the space-key, and both adapted to be operated simultaneously when both a letter-key and the space-key are actuated; substantially as set forth.

3. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism including a pivoted spring-acted dog having an arm, two independent pivoted stops, one of said stops having an arm arranged to be acted upon by the space-key lever, a bail adapted to be actuated by the letter-keys, and connections from said bail to the other of said stops; substantially as set forth.

4. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism including a spring-acted dog having an arm and a lug, a stop for said lug to act against, a pair of independent pivoted stops, a link connected to one of said stops and to a bell-crank, another link connected to said bell-crank and to a bail provided with a notch or cut-away, letter-ke y levers adapted to actuate said bail, a returnspring for the latter, and a space-key lever adapted to act on the other one of said pair of pivoted stops; substantially as set forth.

5. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism comprising a feedingdog and a feed-rack, a finger adapted to engage said rack mounted eccentrically on the pivot or rock-shaft, a crank on said pivot or rock-shaft, a key-lever connected to said crank for throwing the said fingerinto engagement with the feed-rack, and a spring for returning the parts substantially as set forth.

6. In a type-writing machine, the combination of a paper-carriage, a letter-space escapement mechanism comprising a feedingdog and a feed-rack, a pivot or rock-shaft having stops to limit its motions, a retracting-finger, and a crank-arm, a key-lever connected to said crank-arm, and a returning spring; substantially as set forth.

Signed at New York city, in the county of New York and State of New York, this 1st day of July, A. D. 1896.

CARLTON O. W. PEOK.

lVitnesses D. SoLIs RITTERBAND, K. E. DONOVAN.

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