US147312A - Improvement in perforators for automatic telegraphy - Google Patents

Description

2 Sheeis--She'e,t 2., T. A. EDISDN.,

Perforatnrs for Automatic Telagra'pvhy. N0.147,3l2, Patented Feb.l0,1874..

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UNH@ STATES'PATENTOFFICE frnOMAs A. noisoi, or* nlcififamefsnw Jn'nsnr, Assieson "To ,HIMSELF AND GnonGn HAnnrnGroN, or WASHINGTON, D. e.

IMPROVEMENT IN PERFORATORIS FIOR AUTOMATIC TELEGRAPHV.

Specification forming part of Letters Patent No. 147,31 2, dated Februarv 1 0, 11.74 application'led l 'July 29, 1873.

Caen' 75.

' New Jersey, have invented an Improi-ement in Machinery'for Perforating Paper for use in Automatic Telegraphing, of which tlie following .is a specification: l

. This invention isv an improvementupon that set forth in Letters Patent No. 121,601, granted to me December 5,1871, and a reference is hereby expressly made to said patent for a more full and complete description of those parts which areherin only generally referred My present improvement relates to the paper-carrier which feeds the paper, and to themeans for giving the feed-motion-to said paper-carrier. l

ln the drawing, Figure 1 is a pla-n, partia1l5` in section, of a portion of my machine. Fig. 2 is an end eleva-tion of the paper-feed and dies; and Fig. 3 is a detached section, showing one of the cams a-nd slide-bars for giving the feed-motion, and also showing the cam for actuating the presser-lever.

The linger-keys a a. are in two ranges, and mounted on the fnlcrnnrsbaits l; b', and to these keys the vertical slide-bars e e are jointed. The eams f j' are secured to said slide-bars, and they aetuate the presserlevers e e and sldeplates 7.1 7.', which latter .operate the punches I, that perforate the strip of paper in the die Im n, and these parts thus far described are similar in etmstrnetion and operation to the corresponding parts set l'orth in aforesaid patent. The rock-shaft 1", which gives lmotion to the paper-carrier, is mounted in the frame d', and upon this shaft are the cams s', One for each slide-bar e, and each ea-m is made with the arms 12 and 13,' and is upon a hab clamped to said shaft by a set-screw. lhe roller 15 upon the slidebar 0 takes against the arm 12 Ot'lv", and gives a partial rotation to the shat't i", when the bar c is moved by a linger-kebI being depressed, and thea-mount of motion given to said shat't is determined. by the arm 13 of s', which 'comes against the rear ot' the eam-platefon e, as lshown in Fig. il, or against the bar c itself, and acts as a stop to prevent the shaft being turned beyond the point necessaryor giving the proper motion tothe papercarrier t.

These cams s' are easily adjustedv upon the shaft fr', and each cam is positioned so that when a linger-key is depressed, said shaft isv only turned the amount` required for moving the carrier t,.and feeding the paper for the character that is perforated by the depression ot' that key.

The rock-shaft v gives mot-ion to the papera:

carrier t by the arm u', and this carrier* made with a thin meta-l plate, t1, which moves infront of the fence s, and to this plate t1 the paper is clamped by the pawl u when said paper and carrier are moved forward, and said pawl is turned and lifted from o' the paper and plate when the carrier is moved back' ward.

To operate this pawl :1,1 employ the springarni f` and rack r, and this arm is secured to the pivot upon which the pawl u turns. As the carrier t moves backward', the end of the arm enters between two of the teeth of r, and said arm being diagonal to said rack r, the arm yields to accommodate. itselfl to the more ment of the carrier, and in so doing acts as a. lever and swings the pa-wl u ottl of the paper to the position shown by dotted lines in Fig. 1. The pawl uis kept in this position by the end of the arm f1 riding over the teeth of the raek during the ent-ire backward movement Ot' the carrier. Upon the carrier moving forward, the spring-arm swings the pawl u and brings it4 in col'ltz'let'with the paper,and clamps it firmly to the plate t, and said paper isfed ori' carried ibrward by said plate and paw1,.the

spring riding t2 over the ends of the teeth andi' The spring fi" keeps the strip of paper in lts proper position holdin g the pawl to the paper.

aga-inst -thc fence s, and, by its friction, prevents the paper being carried bymomentum a-t'tei the carrier stops.

The operation ot' this machine, as before mentioned, is similar to that set forth in aforesaid patent, the punches i perforating the paper during the time the carrier is moving back` 2 'Megane ward, und this ,backward movement is a dis,` anisni, substantially as and for the purpose.; I

tance equal to ttie'spaco for the eharaeter that set forth. y is perforz'tteri` and the intervening distance.. 2. The spring-arm t2 upon-the pawlu, in

'The spring 16 returns theparts to their norcombination With'the rack lv and reciprocating mal position, and I remark that by this oonmeehanism,.substantially as set forth. struction the adjustment of the paper-feed is. Signed by ine this 24th day of March, A. D. Yvery easily made, and the parts are light and 1873, v not liable to become injured or disarranged. l.

'I claim as my invention- THOMAb A EDISON' 1. The stops 13 and oalnarms l2 upon the 'Witnessesz shafty o', in combination With the linger-keys a GEO. T. PINCKNEY,

a', slides c, rollers l5, and papenfeeding meeh- CEAS. H. SMITH.

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