US1887331A - Perforator - Google Patents

Description

Nov. 8, 1932. w. P. sHoMAkER -1,887,331

PERFORATOR Filed Aug. 26, 1931 Patented Nov. 8, 1932 g I i WESLEY r; snomknn, F in'rcm ronn; "VIRGINIA "-PERTORATOR empplidationz it-le(li-A'ugnsc- 26;:1-931; '=Seria-1'No.55 9j5S2.- I

r 'Thepresentinvention relates to perforalines and-in retracted position in dotted lines. tors, and morepa-rticularly toa perforatol V --Referring to the drawing 10 designates a fOIUSBiIliCOIlIlGCtiOD with-"envelopes,sheets cylinder-over which envelopes 11', sheets --or and other-like articles across which it'ishdeother articles to lie-perforated arepassed; the -sired toform a line of perforations. I .saine beingmovcd between. the cylinder 10 Anobject 10f the presentrinvention iswto :and a-perforatingidisc 12. The disc 12 is'- provide a perforator withimprovedmeans provided with pointed teethyor given any for-temporarily'renderingthesame inoperaother suitable construction to formthe pertive in connection with certain envelopes forationszin theenvelopellg andithe dise 12 -01 sheetsifwh-ich pass 'zthroughstheamechais mounted upon a ashaft-18 which carries (so nism: and whichmaybe operated-by striker clamping discs 14 secured to the shaftatopfingers or othertrip means-,rsuch-asa disclosed -posite sides of the -perforating disci12' to in connection with cry-pendingv application 'securethe latte-r firmly totheshaft. Serial No. 557 ,1-65; filedAu-gust. 1 L, 1-931. .T-heshaftrl3 is provided ionlone end with a 15 Another object of the"present-inventionis removable washer 15which is secured torthe 0-5 v toi id v u o tfor a perf ating disc, shaft by a screw16orthelikewhiletheoppm' which normally-holds the discs-in position site'end of the shaftilii carries apulley 17b} for operation upon-the envelope,-hut which means of which the (shaft: is continuously when tripped will automatically:-raiseuthe rotated, Theoppositeendsxof thegshaft 15 perforatingdisc-out=oftherline-of eon-tact are-:mounted. in bearing a'rms '18 andilthe 20 with the envelope, so that the dism-may be washer 15 isadaptedto'iengage, against the :maintained *at: a constant-predetermined 1 outerface of oneofrthe arms .18, so: as to hold speed of" rotationtopreventtinjnryitoathe the shaft 13 from longitudinal displacement disc and envelope :when-the disc is-again refrom thea-rms. "The arms .18. a e provided :5 leased-and moved into operating position, "at-OneBdgera-nd-intermdiate their n with ,It i a;further-objectiof-the i ve tio t shoulders19zandthe upper ends ofthearins provide a construction of-this character (18 areconnectedlto PI'iHgSQO which extend wherein-there is a-miniinumamountof.strain pwardly from the arms and rearwardly at th ti hm h ii operaopposite SldBS ofthe bracket head=21 fornortion andalso when tripped. inally urging the arms 18 in an upward 'direc- 15o The invention also aimsitoe rovideamech- 010m a o o swing rearwardly against anism wherein the edge of the envelopenis eopp fi sldes'of the The had not-upset asit-isbrought int t t ith 21 isprovidediatits'low'er end with spaced the'peiforatom the object :heingcarried out p n ng forkfarms 22 which di po w 1 b 11 ti di t t d.- t at opposite sides of the discs 12 and'l band .ti i id i i fith c f ti di wh1ch are. prov 1dedw1th longitudinal slots 23 With the foregoing and other objectsin nwhlch-ls freelyi slidable th ppo i end View the invention. mh more. if 11 d portions ofthe shaft 13, so that the shaft with scribed hereinafter, .-ancl -=wi11- be more 'parhe pcrforatlng lsc 12 may. move lengthwise ticularly pointed out in the claims appended "wlthin the fork arms 22 toward and fromthe h t 1 cylinder 10.

Inthe drawing; wherein-like-symbols refer 118M121 s P QY a opp ite Sides -to-1ikeror corresponding :parts 1 throughout Wlth downwardly faclng ul e 2 1 1 the several views, ed to receivethereagainstthe shoulders 19 Figure lis. aside elevation of a 'perforator of. thehearing iarInsY18-whenthe latter are constructed-according tothe present invenswiung:forwardlyiagainst the tension of the itionpthetrip mechanism-=being shown 'in -spri ngs 20 -for holding:the perforating.disc dotted linesyand -l2againstthe'cylinder'10. lhe brackethead "Figure 2 iswan' end-view whereof with the 21 is provided with inclined or cam faces 25, at I e perforating discin operative position in full the rear ends ofvthe shoulders 24and .0ver 9 a set screw 27 adapted to enter the socket and engage against the side of abracket arm 28 for adjustably holding the bracket head on the arm, and the arm is providediwith a clan1p'29 adapted toeng age a supporting" frame rod 30 for rigidly holdin the arm adjusted position thereon.

Spaced lengthwise of the supporting frame rod 30 is a socket clamp '31 carrying a set "screw 32 adapted to engage against a bearing arm 33, which 1s seated 1n the socket of the clamp 31 and which is provided at its outer end with a bearing 34 adapted to retain theregular relation in a rock shaft 35, which is disposed substantially in parallel relation with the frame rod 30; The shaft'35 carries at one side thereof a sleeve 36 engaging against one side of the bearing 34 and which is" Xed in desired anupon the shaft 35 by a set i vent the perforating of desired envelopes or sheets 11, and for this purpose, the-mechascrew 37.

The sleeve 36 provided at one side with a radially disposed post or stud-38 to which one end of a spring 39 is secured, the other end of the spring being looped or otherwise secured upon the frame rod 30, so as to exert tension upon the sleeve 36 and the shaft 35 to turn in one direction. 1

The rock shaft 35 is provided upon its end and at the opposite side ofpthe bearing 34 with'a crank-arm 40 to which is pivoteda V trip rod .41 which extends to a" suitablepoint of the envelope handling mechanism and which, as shown in dotted lines in Figure 1,

fmay be connected to a spring pressed lever '42 lying in the path of a'strikerfinger43 'for'swinging the lever 42 and moving the rod 41 at times; f

' Y The rock shaft 35 is provided upon its 0pposite end with an end socket 44 adapted .to interfit with the non circular end of a cam shaft 45, which is journaled through the rear .end portion of the bracket head 21; and which practically constitutes the rear edges of the fork arms 22. The'cam shaft 45 carries a pair of cams 46 which are disposed against the opposite outer faces of the fork arms 22 in line with the bearing arms 18, and are adapted, as shown 1n Figure 2, to engage against the rear edges of the arms 18 and swlng the latter forwardly agamst the tension of the springs when the rock shaft and the cam shaft 45 are turned. I

" In use','the c l amps 29 and 31 may be adj usted lengthwise of the's'uporting frame rod 30 to dispose the perforating'disci12 inline with the portions of the envelopes or sheets 11 which are to be perforated as they move over the cylinder 10; The correct adjustment of the disc l2'with respect to the cylinder 10 may be obtained by moving the bracket head 21 on the bracket arm 28 and securing the parts in adjusted position by the set screw 27. The corresponding adjustment is also made between the clamp 31 and the bearing arm 33, the latter being moved in the socket of the clamp 31 and fixed in adjusted posi- "thereof beneath the shoulders 24 of the bracknism is provided with oneor more striker fingers 43 adapted to engage the lever 42 of the machine and thus move the rod 41 of the perforator. The rod 41 swings the arm in a direction'to turn the rockshaft 35 againstthe tension of the spring 39. The

rock shaft 35'turns the cam shaft and swings the cams 46 backwardlyaway from the bearing arms 18. 'The springs 20 now 'draw the bearing arms 18 backwa-rdlyfrom beneath the shoulders 24 of the bracket head '21 andat the same time drawing the arms 18 upwardly to an extent sufficient to raise the perforating disc 12 out of the line of contact with the envelopes or sheets 11. This action is permitted as the cam or inclined faces '25 at the-rear ends of the shoulders 24 extend upwardly and rearwardly, so that the shoulders 19 of the bearing arms may ride upwardly over the faces 25 and thus admit of the upward sliding movement of theshaft 13 in the slots 23 of the fork 22. When the disc 12 is thus retracted, it-is still maintained in estate of rotation with the speed unchanged.

Thus when the rod 41 is released, the spring 39 returns the parts to normal position and the cams 46 force the bearing arms 18 forwardly and downwardly to interlock the shoulders and move the perforating disc 12 back into the line of operation. There will be no slipping. jarring or upsetting" of the teethwith respect to the perforatingdisc 12, and there will thus be no mutilation of'the envelopes 11 during this return movemento-f the perforat ng disc. The operation is automatic and smooth without jar or sudden takeup of any of the parts which arev adapted lit) to rotate when operating. It is also seen that the adjustment may be quickly and easily effected as the rock shaft is detachably engaged with the cam shaft by means of the end socket 44 of the rock shaft. The bracket head 21 may thus be first adjusted into the proper line of feed with respect to the en-' velopes l1, and after this ad ustment is ob tained the rock shaft 35 with its connected and supporting parts may then'be adjusted to accommodate the adjustment of the perforating disc 12.

It is obvious that various changes and modifications may be madeiinthe details of construction and design of the above specifically described embodiment of this invention Without depart ng from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims:

lVhat is claimed is 1. In a perforator for envelopes and the like passing over a cylinder, a bracket head, a shaft mounted in the outer end of the head and adapted for bodily movement therein toward and from the cylinder, means for continuously turning the shaft, a perforating disc mounted on the shaft, means for maintaining the perforating disc normally in the line of feed of the envelopes, and automatic trip actuated means operable on the shaft for shifting the same in the bracket head to at times retract the perforating disc from the cylinder.

2. In a perforator for envelopes passing over a cylinder, a perforating disc, shiftable supporting means for the disc, means for con, tinuously turning the disc, yieldable means normally urging the disc from the cylinder out of the line of operation on the envelopes, spring means operable on said first means for normally ma ntaining the latter in position to project the perforating disc into the line of feed for operation on the envelopes, and trip means operable on said last named means for rendering the same inoperative to admit operat on of the first means and the retraction of the perforating disc.

3. In a perforator, a perforating disc, means for continuously rotating the disc, means for retracting the disc out of operative pos tion, realeasable means normally acting on said retracting means to maintain the disc in projected position for operation, and trip means operable upon said releasable means for actuating the latter to release the retracting means; whereby said disc may be retracted.

4. In a perforator, a bracket, means for supporting the bracket, a shaft movably mounted in-the bracket into projected and 'retracted postions, a perforating disc mounted on the shaft, bearing members for said shaft, said bearing; members and said bracket having interlocking shoulders for maintaining the bearing: members;..and. the shaft; in ipro' jected position, springs between the bearing members and the bracket. fornormally moving thexbeari'ngl members i to disengage the shoulders and retract. the bearing members andttheishaft, a :cam shaft mounted on the brackelg camslonthe cam shaft for engaging I .the bearing members tolmove the same into pro ected position and interlock the shoulf ders, a rock 'shaftconnected-to the cam shaft, spring means engaging the rock shaft to urge the isame'ttoturn in-a directionto hold-the camsagainstsaidbearing members andmaintain-the latter inpro1ectedpos1t1on, anditrlp means connected to the rock shaft for at times tonturn' the latter against the spring'and relieve =said cams from pressure against the bearing :members; whereby the springs of the bearing members mayretractthe latter.

An envelope perforator comprising a bracket. head, means for adjustably supporting the bracket head, said bracket head hav ing a slotted fork at its outer end and'outwardly facing shoulders with backwardly and inwardly inclined cam faces leading from the shoulders at opposite sides of the fork, a pair I of bearing arms disposed at opposite sides of the fork, a shaft mounted in said bearing arms, a disc mounted on the shaft in the fork,

means for continuously turning the disc, cam means mounted on the bracket head for mov ing said bearing arms against said cam faces and beneath the shoulders of the bracket head to maintain the shaft and discin projectedosition s rin means connected between the bearing arms and the bracket head for urg ing the spring arms inwardly and rearwardly of the head for retracting the shaft and theperforating disc, a spring operated rock shaft connected to the cam means for normally urging the cam means against said hearing arms, and trip operated means connected to the rock shaft formoving the same in a direction to relieve the cam means from the bearing arms.

6. In a perforator adapted to perforate envelopes or the like passing over a cylinder, a perforating disc, supporting means for the disc, means for rotating the ;disc, locking means biased to a released position for holding the disc in the line of feed of the envelopes, and trip releasable means normally op- I 7 1y rotating the shaft and disc, a pair of bearing members mounted on the shaft at oppo v I I site sides of the forkand having inwardly facing shoulders adapted toseat against-the shoulders of the bracket head, springs between the inner rear portion of the bracket head and the inner ends of said bearing arms for drawing thebearing members and the shaft backwardly to unseat the shoulders of j Y i the bearing member and retract the perforating disc,'a'cam shaft mounted in the lower rear portion of the bracket head, cams on the camshaft disposed in line with the rear edges of the bearing members and trip released means connected to the cam shaft for normally urging the cams against said bearing members to advance the shoulders thereof over said cam faces and beneath the shoulders. of the bracket head.

In testimony whereof I affix mysignature. i

WESLEY P. SHOMAKER.

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