USRE17208E

USRE17208E - Process of and machine for perforating

Info

Publication number: USRE17208E
Authority: US
Publication date: 1929-02-05

Description

Feb. s, 1929. R@ 17,203

P. R. GLASS PROCESS 0F AND `MACHUIE FOR PERFORATING Original Filed Oct. 11. 1919 2 sheetssneet 1 f4. 502s 0 Y n l fg?" j 17' 132 14a 144 Feb. 5, 1929.

P. R. GLASS PROCESS OF AND MACHINE FOR PERFORATING Original Filed Oct. l1. 1919 2 Sheets-Sheet 2 Reissued Feb. 5, 1929.

UNITED STATES PATENT OFFICE.

PERLEY R. GLASS, OF WAYLAND, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEVJ JERSEY, A CORPORATION 0F NEW JERSEY.

PROCESS 0F AND MACHINE FOR PERFOEATING.

Original No. 1,448,210, dated March 13, 1923, Serial No. 323,99?, led October 11, 1919.

Renewed June 14,

1922, Serial No. 568,238. Application for reissue filed July 3, 1924. Serial No. 724,126.

This invent ion relates to methods of and machines for pertiratin@r and is herein set forth by way of illustration with special reference to forming an ornamental row of punch holes or pcrforations along; the margins of pieces of upper leather which are to be used in the manufacture ot' hoots and shoes. According to a usual practice. prior to my inventionY stock to he perforated was positioned between a tiexilgrle non-metallic hacking' member` such as a` strip of paper. and a punch, the latter beinpT reciprocatcd to pcrforatc the stock and penetrate the hacking;l strip without coming into contact with whatever support was used hehind the hacking strip. The paper was fed foriiard after every punching and there was no attempt to use a transverse dimension of the paper, such as its thickness. by punching a prcdeteriuiucd pluralit)Y of times in a given localityY prior to the next forward feed movement of the hacking strip. lllhile by such practice verja satisfactory work might he accomplished. the high cost of the paper backing' strip 'was a considerable item and corresliondingr disadvantage.

An object ot this invention, accordingly, is to reduce the amount of hacking material incl! in performing a ggivcn amount of perforatingr. Considering the invention in its nutliod aspect.. l accomplish this hy automaticallr feeding tln` hacking material intermittently not onlyy in the direction of its length hut also in :mother direction transversely to its` forward feed movement. Although ther transverse feed may, if desired, be widthwise of the strip, I preferably give it a transverse feed in the direction of its thickness thus utilizing the same portion of the non-metallic hacking nienxher to receive a portar-ating instrument, such as a punch, at thc conclusion ot' cach oi' a `series of perforation' operations. the perforatingr instrum. nt twine so maniyriulatcd or controlled as to pemftrate the barking strip without passing througl'i it at each of the perforating movements carried. out against a given portion of the hackingv member.

in importanti feature ot my invention in its machiiisA aspect is the provision of a perf0- rating machine in which perlorating means is nioi'ed relatively to stock positioned against si. marking strip, the hacking strip and the periorating means being so controlled that at each of a series of perforating movements the perforating means penetrates the saine portion of the backing strip Without passing entirely therethrough. In the niachine which I have illustrated for purposes of exempliiication, the punch has a uniform stroke and the backing .strip is moved ver)7 slightly towards the punch after each of several strokes so as to utilize as nearly as is practicable its entire thickness. and is fed lengthwise only after almost its entire thickness has been so utilized.

Further features oft the invention include the provision in such a machine of means for holding;l the hacking strip feeding' and controlling mechanism out of operative position, in case it is desired to punch directliT against the punch block, without interfering with the operation of the other parts of the machine and in the provision of a work support mounted to he readily moved out of the Wav when it' is desired to operate upon stock of such a' shape that the Work support is inconvenient.

Another feature of the invention relates to an improved i'nechauism for operating upon and feeding the work. ln, the embodiment shown, a stem is mounted to reciprocate in an overhanging arm to cause the punch to pei't'm'atc the work and the punch is mounted in a slideivay of the reciprocating stem to move rearwardly for feedingr the Work in alinen'lent with the ovm-hangincV arm.

These and other aspects of the process of my invention, and features of the machine thereof, including certain details of construction and combinations of parts, will he dcscrihed in connection with au illustrative machine and pointed out in the appended claims, It is to be distinctly understood, however. that said illustrated machine is to he considered as disclosed for purposes of exempliiication and that in v invention is not intended to he limited thereto.

Referring to the accompanying drawings in which like reference characters indicate like parts in the several figures,-

Fig. 1 is a side elevation ol' the machine with Vcertain parts broken away to show certain details of construction;

Fig. `2 a perspective View with certain llt) parts hroken away to show more clearly the construction ot the machine;

Fig. 8 is a detail view showing the relation et' the work to the punch and the hacking trip:

Figs. at and 5 are assembled and disassembled views, respectively, of parts of the barking strip controlling mechanism; and

Fig. t3 is a cross-sectional view through the .deans for adjusting the work 'feeding movement ot the punch.

The illustrated machine is provided with a main trame 10 in which is suitably journaled a drive shaftt 12 provided with a pair of cams t4 and 1G for controlling the work feeding movement and the perj'orating movement ot the perforatine; tool. herein illustrated as a punch 1R having three punch tubes 10 arranged in a triangle as indicated in Fig. 3. Provided with a pair ot suitable surfaces engagingr cam tti is a hit'urcated lever 20 tulcrumed at 22 to the main trame and pivoted at its upper end to a link 24: connected also with the knuckle 26 ot' the punch reciprocating toggle 2S. The two members of toggle 28 are pivoted at 30 and 32 to the main Jframe near the outer end of its overhanging arm and to a suitable part, such as sleeve 3l. of the punch reciprocatingr mechaaism, respectively. Suitable bearings 36 and 3S are provided in the forwardly extending portion et the main frame to guide the reciprocation of the punch 18 and the parts oi the machine which reciprocate therewith. .tdjustahlv connected to the sleeve 34 is a stem provided at its lower end with a groove forming a slideivay t2 in which the punch is reciprocated for work feeding movement in a direction at right angles to its per toi-ating movement, as will he hereinafter de .s'criheit Suitahle mechanism may conveniently hc hrovidcd tor adjusting stem 4t) with respect to sleeve 234, that shown being substantialtvY in accordance with the disclosure ol' latent No. 1310.420, granted January 2, 1000, to (diaries l. Stanhon. and consisting ol' a Wedge stl passing through a slot in the stem 40 and adjustable with respect thereto by means of a hand screw etti. ledge t4 hears also against sleeve il with the result that the adjustment of the wedge moves stem it0 relativelyY to sleeve let. Stein lil is provided with a second slot -t-R through which passes a pin F10 engaging the upper end oi sleeve I5 and adiiustahli' held in contact therewith liv spring 52 and a screw .51- threaded into the upper end ot' stem `it). as clearlyY shown in crosssection in Fie'. 1. lt will thus he apparent that the iiertoratingl reeiprocation and the limiti of downward movement ot punch 1S can he conveniently adjusted by means of screw 46.

Adjustahl connected to the main frame of the machine adjacent to the punch 1S is an edge gage GO and on the side of the punch remote therefrom is shown a presser Jfoot (i2 mounted at the lower end ot' a rod tit sliding in bearings at 66 and 68 for reciprocating movement on the main trame. Rod 64 is provided at its upper end with a roll 70 engaging a cam surface 72 at the upper end of a lever 74 pivoted at 76 in the main trame and provided at its lower end with a handle 78 h v which the presser toot may he raised manually when desired. Slidahllv engaging a block 80 connected to the knuckle of toggle 28 is a lever 82 fulcrumed also at 'T6 to the main trame. A screw 84 passes through slot 80 in an arm projecting from lever 74 and is threaded in lever 82. (See Fig. l.) Bearing against this screw Si is a spring S8 the thrust at the other end of which is taken up h v a screw threaded in level' 74. To adjust the normal position of screw Sit with respect to lever 74. there may convenientlyv he. provided a screw 92. It Will thus he seen that the throwingof the toggle 2S will oscillate lever Tt and move cani 72 which of such a torni as periodically to elevate rod Get to raise the presser foot (i2 from work engaging position, the projecting portion of the cam heing so arranged that presser toot 62 is held in elevated position while the work feeding movement of punch 18 takes place. As the upper end or" lever 74 moves towards the right, as illustrated in Fig. 1, rod 64 and the presser foot move downwardly under the action oi gravity.

This Work feeding movement of the punch 18 is effected by means ot a mechanism comprising a cam 14 on the main drive shaft engaging a hell crank lever pivoted at 102 to the main frame and provided in its upwardly extending arm with a slot 104. Fulcruined on an eccentric stud 100 (Fig. (il within the main frame is another lever 10hI provided with a slot parallel to slot 104. Passing through

slots

104 and 110 and pro vided with suitahle hearing members 111 therein is a pivot 112 carried hy a link 11.4 connected at its upper end to a rod titi adv justahle in a slot- 118 in the main trame to which it may he clamped hy a wing nut 120. The rod 116 may he conveniently provided with a pointer 122. and adjacent the path ol movement of this pointer ther(` is shown a scale 124 to indicate. the extent oi' the work feeding movement of the punch. livoted at to lever 108 is a link 12S connected at its other end to a sleeve through which passes a stem 132 guided for horizontal reeiprrwation at its upper end in the groove formed in the end of the member 40. said stem 132 carrying at its lower end the punch 1S. The sleeve 130 is guided for horizontal work feeding reciprocation in a fixed guide on the frame. It will thus he seen that oscillation of bell crank lever 1.00 will through pin 112 oscillate lever 108 with the resulting reciprocation of link 128 and work feeding recip llt) rocation of the punch, Variation of the position of pivot pin 112I relative to the fulernms 102 and 10G of

levers

100 and 108 will, it is apparent, very the extent of the Work feeding movement of the punch. The Work feeding:r movement is rearwardly away from the operetor and in elinement with the overhanging arm of the frame 10.

llflonnted on shaft 12 is :i skew gen1' 140 engaging: n similari' gein.' 142 mounted on ehn'lt 144 curried` horizontally in u bracket 148 zul-- justnbliv connected to the nmin frame, ne will be hereinufler more fully (.leeerilgled, und provided ai its iorn'urd end with n worm 141i meshing' with worm wheel 148 rotatably monnetd on a vertically movable etud 14S). Formed integral with the. upper surface of Worin wheel 148 are e` series of inclined earn surfaces 151) and n corresponding series of protnbei'uncee4 151 ne clearly shown in Fig. 5, the former engegineIr n eompernting serieu o1 cum Surfaces 152 formed on the lower une fece o1 :i punch block carrying' member or anvil 154` rigid With stud 14S) and carrying punch plaie or block 158. Extending' rndiul ly vfrom member 154 is n Series o'l pine 157. correeponding; in number and Spacing to the protuberencee 151. Stud 149 is restrained from rotary movement by means of a` pin and slot eonnection 158 ns shown in F ig. 4. @ein surfaces 150 und 152 nre convenientl)Y held in contact by spring 16() bearing against n ehenlder near the lower end of stud 149 und e cooperntitng' shoulder 162 formed in bearing 164 Supporting' the stud 149 in the mein freine. l'etween its ends shaft 144 is provided with n pinion 170 meshing' with spur geur 172 formed ri {Iid with :ein 174 and jonrnaled :at 176 in an upwardly extending pro jeetion of frame member 143. Oseilletable about a pivot 178 is a lever 180 Carrying at one end n roll 182 hearing' nguinei :ind moved by oem 174. The other end oi lever 18() is curved :u: clnrly shown in Fig. 2 und in provided on itsy upper surface with n wey ug'ninet Whieh benre e` roll 182 mounted in the end of n pnwl 184 pivoted at 186 to a roeking Support 188 eerried by bracket 148 and to a link 189 connected et its other end to lever 108 and rcciprocnited thereby. This pnwl is provided with :i Spring 190 tending to hold it in engagement with e ratchet 192. Rigid with relehet 192 and supported also by the member 188 ie one of :1 pair of bevel genre 194 :ind 196. the latter of which is jonrnuled on en cxleneion of brncliet member 142i nud ie' formed rigid with n roll 198. A roll 200 in eurried b v u lever Q02 m'ljustuhly tnlerumml :uliueent to the roll 198 and movable with reepeet thereto by means oi" a. screw 04 to grip n. peper backing strip es will later appear.

Penning over the puneh bleek 156 e hurle ing member illustrated in Fig'. 3 as e etrip of peper 210 passing from a grooved strip holder reel 211 (Fig. 1) between rolle 198 und 2110 und from them through hollow guide tube 21.2 to punching position on the punch block 156.

The main treme of the machine ie provided with :i guidewuy 221) in which in a. co-opereting; guide member 22'? shown at the lower lefthund portion of Fig. 2 und formed on the end ol the brochet member 143. Members 2311 and i222 muy be clamped in :nfljiustml position by mennel of' u hund :Screw 224. lt should be noted here ther the bushing' drip feeding` :and ronirolliug' menne' mounled on :ind enizport-:fd b v brochet member 14% of 1hr Yirruue with the result thnt seid brncelit muy be clemped in the operative poeition shown in the dre. *inge or it muy be moved and clun'ipeil in euch poeition that genre' 142 und 14H nre in non-n'ieshine relation on euch occasione` ns it may be deeired to use the nuichine without utilizing lhe bucking Strip un. for instance. it' it in de Hired to perform the punching operntion directly nnjniuet :i ini-inl er other enitnble puns'h block without tlnl interposition of the backing; etrip.

The nierl'fine muy conveniently be provided with u uei'li support Shown ne n table consist ing of two parte 22)() .find 232 pivoted ne indiened et i234 (eee Fir'. to the mein 'treme und ndzlpled to support the Work :is indirnled in Figi. 8. Wheu. however, it is desired to opere to upon work. such as e cloned 'ni;ip,\vliicl1 cnn not be convenientlyv Supported on n lint Surface, the, two parte of the Work tnble muy be swung about pivotee larray i'roni one another und from the puneh.

In operation. the punch (leeeende to perlorae the :Stoch und purtly to penetrate the banking strip and then ie relieved und rise` 'li;,),'htlT out ol the bucking Ietrip while etill in engagementnith the slocl-. The punch ie; next moved horizoninlly to feed the ynoch. Then more4 verticnliy und theren inter rei urns; hrnizontnlly :it un upper level lo its originel posit ion. I will non' describe the mode or operation ol' the l'eed roll meehenie'm for cou-- trollingV the position el end it'eedingl the hurl:i ing strip. A supply o l paper or other backing' materiel is carried by the iroovee'l holder reel Q11, passing from there between rolle 198 and 2110 und through guide 212 over the pnnrh bleek 156. Assuming that the punch block ie in ite lowcsl position. ne indicuted in Fin'. 4, it will be raised slightly ne' cum .enrtneeu 1513 nre rotntcd. The gearing; i;: :fo timed, in the mei-bine illuslrnted. ilnil the puurh liorli will he rained n dietance einneirhui leu. 'ihm'. one-fifth of the thickness of tbz barking nl rip between eneh two punching opei';iion'--:. com surfncee being moved one hrentiM-lil'lh of e. revolution` that ie one-fifth the length o i" euch com eurl'nee. between consecutive punch ing' operntione, until e'l'ler tive punchingy operations it hns been raised n distance.

lil]

a lmost` hut not quite, equal to the thickness ot the paper so that if another punching.;` operation were performed against the same portion ol' the hacking strip the punch would come into mulenirabl)Y close proximity to the punch hlock. At this time pawl iSl is swungr into contact with ratrhet. 192 through the operation ot its spring this` being permitted hy the loweringlr et the left-hand end (as viewed in Figa. l and 2) of lever 18D and upon the reciprolfation otl link 189 mores the ratchet a Step thuA imeratinziv roll 19S to toed or poeh the -v strip ot' paper tn'wnrd prel'eralily just enough to clear the punch holes and present a new hac-kine Surface to the punch. While this is taking place. the punch hloek is held in its elevated punition hy mean of the pin:-l 15T supported hy the protuhm-:mees4 Lil. Immediatel)V thereaflt er as ram Surfaces io() are rotated in the direction ol" the arrow in Fin'. 5, Stud 149 snaps hack into its4 lmvern'ioet. position carrying with it, olE course,` the punch block lt. lt will thus he eeen that the punch operates in a uniform path to pcrt'orm the perioratinnoperations and that the punch hlock and hark'inflstrp are moved a` short din-- tance towards the punch tor each of a series ot' pert'oratinplr operations and thereafter the haekinggf Strip iS moved lonlg'iti'ulinallyY and the punch block is held temporarily elevated.` and then the punch hlock and hacking Strip are moved downwardly a distance equal to the Sum of the preceding upward movements thus leaving the hacking` Strip at its original level ready for a repetition ot the foregoing.

Iiarinrj described my inrention, what Vl claim as new and desire to Secure hy Lettera vPatent ot' the United States is:

1. The procese of pertorating Stock which roneiste in positioning a portion ol stock with the location ot a desired perforation against a tthrou hacking member. perforatinrl the Stork h5' a r-nitahle instrument and in the, same operation penetrating the hacking' memher` reducingr the distance hetween the instrument and the hacking member, positioning an unpertorated portion ot stock against` the previonelr penetrated portion of the hackingr inemher and causing the pertoratirrglr instrument to per'liorate the Stock as het'ore and to penetrate the parking' mexuher to a. greater depth than in the preceding operation to ennre a clean eut perforation.

2. The prot-eee ot' perl'oratinp; Stork which eousintrl in 'posit ioninfj a portion of Stock with the location of e. deeired perl'oration against a hacking' memher. operating' a pertoratinn tool through n nnil'orm predetermined path so ae to pertorat e the. Stock and slightly penetrate the hackingr melnher` movingl the hacking; memher nearer to the instrument.. positioning an unpertorated portion ot stock with the location ol" a deeired perforation against the previously penetrated portion of the hack,-

innr memher, and operating the perforating tool eo as to pert'orate the stock and penetrate the hacking' member to a greater depth than that ot the previousl penetration.

3. The process of perfor'atingl Stock which coin-lists in positioning a portion of Ietock with the location ot' a desired perforation against a liackinn' memher, perl'orating the stock hy a nuitalfile inetrument; and at the same operation penetrating. without paseingi' through the hacking memher` reducinglr the diet-ance hetween the instrument and the haekini,lr memller.y poaitioning: another portion of said Stock with the location ot a deeired perforation against the preriourdy penetrated portion of the hacking member. and can-ing;r the instrument to per iorate the Stork and penetrate the hackingY memher to a greater depth than in the ln'ccei'ling operation hut without passing therethrough.

4. The procese of perloratiingl stock which consiste' in cans-ing a Suitahle instrument to perforate a piece ot Stock iliositioned against a hackingl Strip and penetrate the hacking Strip` moving the Stock a short distance, and operatingr the pertrrira ting instrument So as to penetrate the hackinUr Strip in the Same place as in the previene operation and to a greater depth hut Without passingr therethrough.

5. The procefre of pertorating;r Stock which consists in performing a series of stock pertorating operations against the same port ion ot a hacking" member, moving the hackine.r niemher and causing the perforating instrument at each pertorating movement after the tiret to penetrate the hacking member to a Slightly greater depth than at its previoual perforation to ensure clean cut perforatione.

6. The process of perforating stock which consiste in poeitioningr a piece of stock with the location ot a desired perforation against the hacking Strip and alternatelyv perforation the stock with a -Quit ahle instrument and moringf the piece ot stock a Step forward so as to produce a row ot' il'iert'orations therein, the instrument at each perforation* movement penetrating the hacking strip to a Slightly .greater depth than at its previous perforation.

'i'. The process ot pertoratixrar stock which consiats in sequentially positi(mini;r portions ot a. piece. of stock hetwoen and in operative. relation to a hackingr member and a perforating inetrument` and causing :1 eeriee of relative niorementno't the hacking1r memher and the perforatinl .instrument to form the desired pertorations` the. relative morementa` heinn .euch that. at the tiret` movement ol a Series1 the per'toratinginstrument penetrates the hacking; member, and at each movement after the First of Said series the tool penetrates the hackingr memhcr to a 'depth zgreater than it penetrated :it the prfedinn1 movement.

R. The proveen nt rnfrforating atoute "erhielt consists in sequentially positioning portions or" stock with the locations of desired perforations in the stock between and in operative relation to a hacking memher and apertorating' instrument, causing a series ot relative mori-,ments nl the hacking' member and the performing instrument to torni the desired peri'inations` thc relative n'lovements heilig such that at the'tirst vn'imf'enient of a series the pcrtoratingl instrument penetrates the hacking1 meniher, and at each movement atter the tiret ot' said series the pertorating instrument pcnetratcs thc haeliinn' member to a dejith greater than that to which it penetrated at the prmrf-iding,r movement, and moving the hacking# memher a step transversely to the direction ot said relative movements after cach ot said eci-ies ot relative movements.

t). The procesn ot' pertorating stock which consists in positirmingg` a piece of stock with the location ot' a desired perforation against a hacking strip, repeatedly operating a perfor-(ning instrument through a uniform predetermined path so as to pertorate the stock, moving the stock a step forward hetween successive pcrforating: operations, and moving; the hacking mcmher a. short distance toward the pertoratinn tool hetwcen successive pcrtoratiug' operations.

10. The process of pert'orating stock Which consists in positioning a piece of stock With the location ot a desired perforation against a hacking strip, repeatedly operating a perforatingi instrument through a uniform path so as' repeatedly to perforate the stock, moving' the stock a step forward hetvveen successive pertorating operations, moving the hacking;- strip a short distance toward the pertorating instrument after each of a series ot' pertorating operations, and moving the hal-kine' strip after the last perforating operation oi' the series a step longitudinally and a distance awa)Y troni the perforating tool equal to the sum ot its movement toward the tool, thus leaving the hacking strip in position for :i rcpci tfon ol thc foregoing.

i1. The process ot' perfor-ating stock which consists in positioning a piece of stock with the location of a desired perforation against a hackingn strip, repeatedly operating a pertorating instrument through a uniform path so as repeatedly to pcrforate the stock, moving the stock a step foi-Ward between suoces ive peri'orating operations, moving the hacking strip a short distance toward the performing instrument after each of ase'ies ot performing); operations, holding the hackin;lr strip in its position nearest to the perforating' instrument While rootingr the hacking strip a stop longitudinally, and then moving the hacking' .strip a distance away from the perioratinn' tool equal to the sinn of its movement toward the tool` thus leaving the hacking' stripiu position for a repetition of the toregoi ng.

12. In a perforating machine, the combina tion ot' a punch, a punch hiocli, a hacking strip supported by the punch block, means for causing the punch to pertorate the work and partly penetrate the hacking strip, and means for moving the punch hlocli and the strip in the direction ot the punch to utilize the thickness of thc strip as a hackinl for a series ot' pert'oratiupi movements of the punch.

i3. In a perforating machine, the combination ot' a punch, a, punch block, a hacking strip supported hy the punch hloclt, means for operating the punch to pertorate the Work and partly penetrate the hacking' strip, meansl tor moving the punch block and the strip in the direction ot the punch to utilize the thickness ot' the strip as a hacking tor a series of perioratinfg nmvenients ot the punch, means tor returning the punch block to its original position a i'tcr the series of per- 't'orating movements ot' the punch, and means for moving the hacking strip across the punch hlock in readiness for a new series of performing movements.

I4. In a perfor-ating machine, the combination ot' a punch, a punch block, a hacking` strip supported hy the punch block, means for operating the pizneh, and automatic means tor reducing the distance between theV punch hlocit and the punch duringr a series of reciprocating movements ot the punch to utilize thc thickness oi' the strip as a i'iaeli'ing.

15. In a perforating machine, the combination of a punch, a punch hlock, a hacking;- strip supported hy the punch block, means for operating the punch, automatic means for reducing the distance between the punch hlock and the punch during a series ot' recipro iating' movements of the punch to utilize the thickness ot' thc strip as a hacking, and .means for moving the hacking strip across the punch block for a new series ot' pertorating movenients of the punch.

ln a perforating machine, the conihinationot a punch, aipunch block having a hacking' strip, means for operatinzf,r thc punch, Vand means, operable during a series` ot' operating movenicnin oi' the punch, for moving' the hacking strip towards the punch a total distance less than the thickness ot the hacking strip to utilize the thickness of the Vhacking strip.

l?, In a periorating machine, the comhination otl :i punch, a punch block, a hacking strip supported hy the punch block, means for opcrating'the punch. means, operable duringi serien of operatingr movements of the punch, for movinglr the hacking' strip toward the punch a total distance loss than the thickness of the hacking strip, and means for tecilinn the hacking strip across the punch hloclc after cach `series ot operating' moveincnts ot the punch.

ich ln a pertorating machine, the coinhination of a perforating tool constructed and arranged to operate against a backing member, and automatic means for reducing the distance between the backing member and the perforating tool during a series of operating movements of the perforating tool to utilize the thickness of the backing member.

19. In a perforating machine, the combination of a backing strip, a perforating tool constructed and arranged to operate against the backing strip, means for operating the perforatingr tool, and means for moving the backing member towards the perforating tool during a series of operating movements of the perforating tool to utilize the thickness of the backing member.

20. In a perforating machine, the combination of a punch, a punch block, a backing strip, means for feeding,r the backing strip step-by-step over the punch block, and means for operating the punch and punch block to perform a series of successive punching operations without feeding movement of the backing strip after each step of the feeding movement of the backing strip.

2l. In a perforating machine, the combination ot' a punch, a backing strip, automatic means for feeding the backing strip step-bystep, and means for operating the punch to perform a series of successive punching operations against the same portion of the backing strip after each step of the feed thereof.

22. In a perforating machine, the combination of a perforating tool, a backing member against which the perforating tool operates, and means for operating said tool and for moving the backing member towards the tool during a series of perforating operations a distance less than the thickness of the backing member to utilize the thickness of the backing member.

23. In a perforating machine, the combination of a perforating tool for performing a series of perforating movements, a backing member against which the perforating tool operates, and power-operated means for moving the backing member a short distance towards the tool during each perforating movement of the tool, the total movement of the backing member during the series of movements of the tool being insufficient to cause the tool to pass through the backin(T member.

24. In a perfor-ating machine, the combination of a punch constructed and arranged to operate against a backing strip, a backing strip, feeding means to move relatively the punch and backing strip step-by-step, means to cause a series of relative stock perforating and backing strip penetrating movements of the punch and backing strip after each step of the relative feeding movement of the punch and backing strip, and means to cause the punch to penetrate the backing strip to a slightly greater depth at each successive movement of the series.

25. In a perforating machine, the combination of a punch, a punch block, a backing member supported on the punch block, means for moving the punch block in the direction of the punch to utilize the thickness of the backing member for a series of punching operations, and means thereafter' to move the punch block away from the punch a distance equal to the lirst movement.

26. In a perforating machine, the combination of a punch, a punch block, a backing strip, means for moving the punch block in the direction of the punch to utilize the thickness of the backing member for a series of pimching operations, means thereafter to move the punch block away from the punch to its original position, and means for feeding the backing strip over the punch block in readiness for a new series of punching operations.

27. In a perforating machine, the combination of a backing strip, a punch constructed and arranged to operate against the backing strip, means to feed the strip forward stepby-step, and automatic means to move thrl strip transversely to the direction of its forward movement.

28. In a perforating machine, the combination of a backing member, a perforating tool arranged to operate against the backing` member, means to move the tool towards and from the backing member for a series of stock perforatin operations, and means, operable automatica ly during the series of stock perforating operations, to move the backing member towards the tool to utilize the thickness of the backing member.

29. In a perfor-ating machine, the combination of a backing member, a perforating tool constructed and arranged to operate against the backing member, and automatic means to move the backing member a short distance towards the tool for every successive perforating operation to utilize the thickness of the backing member for a series of perforatingl operations.

30. In a perforating machine, the combination of a backing member, a perforating tool constructed and arranged to operate against the backing member, means to produce a series of equal successive perforating movements of said tool, and means automatically to decrease the distance between said tool and said backing member between consecutive pairs of a series of successive perforating movements.

31. In a perforating machine, the combination of a backing strip, a punch constructed and arranged to operate against the backing strip, means to cause a number of series of relative stock perforating and backing strip penetrating movements of the punch and backing strip, and means1 under the control of the machine. to feed the strip a step forA ward after each series of stock perforating lll) and backing strip penetrating movements.

32. ln a l1ertorating,r machine, the combination ot .'1 backing' strip. a punch constructed and arranged to operate againa-:t the backing' strip, means to Vfeed the strip forward stepby-step, means to cause a series of relative stock perlorati-ng4 and barking' strip penetrating movements of the punch and backing strip between ,successive feeding movements ot' the strip, and means to cause the punch to penctraie the backing` strip to a slightly `greater depth at tach successive niovenmn ol a series.

l'). ln a pe1"1'o1fati11l machine, the combination ot a backing' strip,11 punch constructed and arranged to operate against thel backing strip.1ne:1ns1'o more the backinglr strip a short distance towards Ehe punch lor each ot a series ot punching operations, and means to move the strip a step forward and to its orig'- inal distance trom the punch after the last punch ingn operation ot sa id series.

IH. In a stcp-by-sfep perl'orating 1nachi110, the combination ot' a `melting member, a punch operating against the backing member, power-1perated n cans to more the backing' member step-blv-step transversely to the 11irection ot punching' movement ol the punch, and means to operate the punch to perform a series ot' perioratincl operations on a` piece ot' stock b 'tween said step-l'1Iv-stc1l1 movements.

35. In a strp-by-step performing' machine, the combination of a backing member, a p0rforating' tool operatingr against the hacking member, means constructed and arranged to operate t be pertorating' tool to perform a sueeession o1 series of pert'oratingy operations on a piece otI stock, all the pertorating' operations ot the tool in each series being directed against the saine portion of the hacking1 member, and means operatingr automatically to move the backing member between the successive series.

8G. In a pert'orating` machine, the combination ot a punch, a backing strip, means constructed and arranged to operate said punch against the backing strip, mechanism to feed and control the position ol' the backingl strip, a bracket for supporting said mechanism, and means Ytor holding said bracket with its mechanism out of operative position and at the same time leaving said punch operating means in operative condition.

3T. In a pert'orating machine, the combination of a punch, a punch block, a backing strip, means tor feeding the backingr strip over the punch block, and a cam for moving the punch block and the backing strip in the direction ot the punch to ensure clean cut perforations.

3S. In a perforating machine, the combination of a periorating` tool constructed and arranged to operate against a backing' 1110mber, a punch block supporting the backing' member and having a cam surface termed thereon, a cam member engaging said cam surface, and mechanism for rotating said cam member and moving the punch block to utilize the thickness olf the backing` strip for a series of punching operations.

39. In a pertorating machine, the combination ot' a punch, a punch block, means for feeding a backingl strip thereover, a cam member operatively connecte-1l to the punch block, a second earn member having; a form complenwntal to the first and er1-operating therewith, and means to rotate one of said cam members to transmit a rectilinear movement to said punch block.

40. In a per t'orating' machine, the combination ot' a punch, a punch block, a pair ot opposing rolls tor feeding,v a barking strip therebetween and over the punch block, and a rotatable cam member tor movinplr the punch block in the direction of the punch.

41. In a pertorating` machine, the combination of a pertorating tool constructed and arranged to opcrat1 against a backing;` strip, a pair ot' opposed rolls, means tor intermittently actuating one 0i' said rolls to feed the backing member forward and past the perfor-ating position otsaid tool, a 011111 constructed and arranged to more the backing member toward the tool after each movement of the backing` member past the tool, and means to operate the pertoratinga tool after each movement oit the backing' member.

42. In a perlorating machine, a shatt having' a cam member and a punch block rigidly connected thereto, means to restrain the shaft against rotary movement but permit longitudinal movement thereoi. a second cam member co-operating with the lirst. and means for rotating said second cam member to transmit longitudinal movement through said tirst cam member and said shaft to the punch block.

43. In a perforatinfr machine, a shaft having a cam member and a punch block operativelj,7 connected thereto, means for restraining the punch block against rotary movement, a second cam member 11o-operating with the first, and means to rotate one ot said cam members to transmit a rectilinear movement to said punch block.

44. In a pertorating machine, a shaft having,Y a cam member and a punch block operatively connected thereto, means for restraining the punch block against rotary movenient,- a second cam member ctn-operating with the first, means to rotate one of said cam members to transmit a rectilinear movement to said punch block, and means operative after a rectilinear movement to feed a backing strip a step forward over said punch block.

15. In a perforatingr machine. a shat't having;r a cam member and a punch block operatively connected thereto, means for restraining the punch block against rotarv movement, a` second cam member ce1-operating with lUO the rst, means to rotate one of said cam members to transmit a rectilinear movement to said punch block, and means operative after a rertilinear movement to feed a backing strip a step forward over said punch block and to return said punch block to its original position.

46. In a perforation machine, a lever provided with a slot, means for uniformly oseillating said lever, a second lever provided with a slot ha ving.` its length in the same general direction as that of the slot in the first lever. a member passing' through said slots and bearing against the walls thereof. means Jtor supporting said member adjustably to vary the amplitude ol' the oscillations transA mitted therebyY trom the first lever to the seeond. a link connected to said second lever. and a punch connected to said linlr. tor reciprocation thereby.

47. In a machine ot the class described. a level' provided with a slot. means t'or oscilbiting said lever. a second lever provided with a slot having its length in the same general direction as that ot the slot in the tirst lever. a member pass-iupY through said slots and bearing against the walls thereof. means for supporting;l said meniiiwr adjustably to vary the amplitude of the oscillation trans mitted thereby from the tirst lever to the serond. a sleeve connected to said second lever for horizontal rcciprocation, and a tool car-- rbving` stem guided by said sleeve for vertical reciprocation.

18. ln a machine ot the class described. the combination ot' a pertorating' tool. a punch bloeit against which the tool tmerates, and a. work table to support the work in operative relation to the tool constructed and arranged to be moved into and ont ot work supporting position.

il). ln :i machine of the class described, the combination of an ope ating tool, and a di vided work table to support the work in operative relation to the tool` the parts of said divided work table being severallyY pivoted to be swung' simultaneously into and out ot work supporting position.

In). ln a machine ot' the class described, the combination of an operating tool.y and a divided work table. the parts ot' said table be- ,ingv severallyY pivoted to a support distant vtrom said tool and constructed and arranged to swing' trom a meeting work-supporting position to a separated out-otthe-waiY position.

5l. ln a perforating machine, an overhanging,l arm, a member mounted for reciprocating movement in the arm and having a lateral groove at the end forming a slidewav therein parallel to the overhanging arm, an operatingr member mounted tor lateral 'feeding movement in the slidewarv. and means for sliding the operating member to feed the work in alinement with the arm.

52. In a perforating machine, a frame having' alined bearings7 a stem mounted for reci procating movement in the bearings, a sleeve mounted for reeiprocation in a fixed guide on the trame, an operating member mounted to slide in the sleeve to engage the work and to slide with the sleeve for feeding' movement ot the work, connections between the stem and the operatingA member to allow tet-ding movenu'nt of the latter. and means for reeiprorating the stem and thtl operating member to treat the work.

53. ln a` perfomtingl machine, a member mounted for reciprocating movement and having' a lateral slidewav therein.v an operating member mounted i'or lateral leedin, T movement in the slidewav, a sleeve surroundine` the operating member 'to guide it for work-engaging movement with respect, to said sleeve. and means for moving` the sleeve 'to impart feeding movement to the operatingl member.

.ti-l. 1n a perforating machine, a frame, an operating1 member mounted for reciprocation in the frame. toggle mechanism tor actuating the operating member to treat the work, a presser foot. and connections from the toggle mechanism 'to the presser toot for moving; the latter awaY vfrom the work when the operating member is actuated.

In a perorating machine, a trarne, an operating member mounted for rcciprot'ation in the frame, toggle mechanism tor actuatingthe operating member to treat the work, a presser foot, a cam member to control the presser foot, and connections between the toggle mechanism and theI cam member to artuate the presser foot.

56. In a perforatingr machine, a stem mounted for reciprocation and having a horizontal slideway therein extending from trout to rear, mechanism for reciprocating the stem, a pertorating tool mounted it'or horizontal feeding movement in the slideway. and means for sliding the pert'orating tool to feed the work rearwai'dlpv away from the operator.

57. ln a machine ot' the class described, a slidable stem, a trame having!y bearings for guiding said stein, a lined guidewav arranged transversely to said stem. a sleeve mounted to ,slide along said guideway tor work toeding movement, an operating member constructed and arranged to slide within said sleeve for worlt enga;ingy movement. means tor sliding the stem, and a connection between said stem and said operatingl member constructed and arranged to impart work engaging movement to said operating! member and allow Work feeding movement transversely of the stem.

58. In a machine of the class described. in combination. a backing' strip, a pei't'orating tool. means for operating' the tool to perforate a piece ot' stock and to penetrate,

without passing through, the backing1 etrip, automatic means for feeding the hacking strip atep-hy-atep in the direction of its length to utilize the length of the Strip. and menne` controlled hiv the machine 'For tendine the hacking .atrip in a direction at right angles to it4 YForward i'eed movement to une up the .etrip in another dinlenaion.

lill. In a utep-h v-utcp perforatini;V machine. a hacking` utrip, a peri'o: atingv tool, means for actuating the tool to per'torate a piece of stock and to penetrate, Without passing through7 thc hacking' strip. meanal tor actuating` the tool in another direction to feed the stoel( tep-liy-atep over 'the hacking' Strip. menne for feeding the hacking sat1-ip step-bystcp in the direction ol' its length to utilize the length of the ntrip. and automatic means for feeding;V the haunting strip in a direction trannverne to its1 foruuird feed movement to une up the strip in another dimension.

U0. In a step-hy-Sicp perforating;F machine. a Work support, an arm overhanging the Work Support. a n'orl; feeding punch, and means for recipr(:eatingl the punch in a direction parallel to the over-hanging arm to t'eed the` work in alinement with `aid arm.

G1. In a perforating machine. in combination. a punch. a movable punch plate. a hack-4 ing stri p extending across and adapted to he fed over said punch plate, means Afior aetnating the punch to punch and teed the Worl. and means operating in timed relation to the punch movements for raising the punch plate to maintain the hacking' Strip in ite elevated position during the Vfeeding; movement ot the strip.

(i2. ln a perfo 1ating;l machine. a movable punch plate` a work tendine' punch. an elongated hacking' strip adapted to he 'ted acroen uaid punch plate. menne for eansingthe punch to rece( e trom the hacking;- strip preparatory to 'feeding the Work. and means for holding the punch plate in elevated position during the feeding' movement of the hackingi Strip.

63. In a pertoratingr machine. a punch. a punch plate. a hackingr strip. meane for actuatingi the punch to punch and feed the Work consul-acted and arranged to efl'ect a relief movement ol the punch prior to its feed movement. and uieann controlleiil hv the machine For elevating the punch plate in a direction opposite to the relief movement ol the punch.

(il. ln a perl'orating machine. in combination., :i punch plate. a hackingr Strip extending over said punch plate. a` punch. meanaA 'for actuating the punch to iced the vvorh slepdiy-ntep. and meantor raining;` the punch plate and holding it in its hiifhest position duringl certain periodicallj.Y recurrent feeding movements ol` the punch.

(ih. ln a pertorat-ing machine. in combina tion. a hackingA `@trip` a punch. a cri-operating: punch plate beneath the hacking: trip. means 'for actuating the punch to feed the Work stephy-utep. and means for intermittently raising said punch plate through a range less than the thicknesa` of the hacking strip and holding' it there during the Work teeding movement of the punch with leen Frequency than the ntep-liy-step feed ol'` the work.

(lo. ln a pertorating' machine in combination. a work 'feeding punch. a punch plate. a liaclcine' Strip extending across the punch plate. means tor causing relative movement of approach between the punch and punch plate to pei-forato the Work and penetrate the hacking strip, means for canning a relative relief movement ot' the punch and punch plate to allow the punch to leave the hacking strip and l'ced the Work, and means lor inter mittenti)Y holdinfi the punch plate in elevated position dnrinl;Y the leerling movement of the punch.

67. In a perfor-ating machin-e. in combina.- tion. a` punch plate. a hackingr Strip leading over Said punch plate. Work feeding punch, means tor actuating.' the punch to pertorate the work and to penetrate without passing' through the hacking `strip` means VFor removing the punch troni the hacking' Strip preparatorv to feeding the work. and meann tor intermittently raining: the punch plate through a range less than the thicknens of the hacking Strip and holding it in its position of greatest elevation during the Strip feeding movement.

68. ln a perforating machine. in combination. a punch plate. a hacking strip leading over Said punch plate. a Work Feedingr punch. ni aus for actuatingr the punch to per'lforate the Work and to penetrate Without passing" th rough the hacking Strip. meane for removing the punch Afrom the hacking Strip preparatorvY to feeding the Work. and means for intermittently raising1 the punch block and the hacking Strip.

Tn a perfor-ating machine. a. Work feed ing' punch. an anvil, a` punch plate normally supported h rv the anvil. a hacking71 Strip extending across and adapted to he t'ed over Said )unch plate. and means for rainingT Said punch plate and hacking strip operating' automaticallv at the time ot' a Work feeding' movement of the punch.

70. In a perforatinu machine. the combina.- tion of a hacking Strip beneath a piece of Work. a punch. means tor actuating tire punch to feed the Work across the hacking Strip step hy .utep al'ter each punchingT operation. means tor varying the elevation ot' the hacking' Strip. and menne VFor causing' a trip vfeeding movement after a predetermined pluralit'iiY of punching operationa with the Strip al vave at a predetermined elevation duringr said feeding movement.

il. ln a perlorating machine. the combination of a hackinga siti-ip. a perfor-ating tool constructed and arranged to operato ugrainnt il O ,iti

the hacking strip, means for operating the perforating tool, means for moving the hacking strip towards the perforatilm` tool during a series of operating nu'ivements of the perforating toni to utilize the thickness of the hacking strip, and means tor causing a strip feeding movement after said series of operating movements while the hacking strip is at its closest approach to the tool.

TQ. ln a perforating machine. the comhination ol a punch, a punch hloek having a hacking strip adapted to support a piece of work. means for operating the punch to perforate the work and enter the strip Without passing through it` means for causing said punch intermittently to cil'cct a feeding movement of the work in a direction trani-Weise to thel direction of punching iuovuuent. and u'ieaus acting at greater iuterrals than the work feeding movement constructed and arranged to eievate the punch hlock and to hold it there during the feeding movement.

73. In a perforating machine, the comhination of a punch, a punch hlock having a hacking strip, means for operating the punch, means, operable during a series of operating movements ofthe punch, for moving the hacking strip towards the punch a total distance less than the thickness of the hacking strip to utilize the thickness of the hacking strip, and means for feeding the hacking strip in a direction transverse to the direction of punching movement.

7i. 1n a perforating machine, the comhination of a punch, a punch block, a hacking strip to cushion said punch passing over the punch hlock, means for actuating said punch to perforate the ivork and moving the same laterallyT to feed the Work, frictional means tending to advance the strip, and means for internilttcntl)v raising said punch hloek and holding it raised during a feeding movement of the hacking strip. said machine heilig coustructed and arranged so that the distance ot feeding movement of the work is u'iateuall)1 greater than the distance of ultimate feed of the hacking strip.

T5. In a perforating machine, a punch, a punch hlock, a hacking strip passing o ver said punch hlock` means' for reciprocatingl said punch to perforate the work, means for moving' said punch laterallyT to feed the work, and means for automatically elevating and lowering said punch hlock and holding it at its highest position during the feeding movement of the hacking strip.

T6. ln a perforating machine, a punch, a punch hloek, a hacking strip passing over said punch hlock, feeding rolls for said hacking strip, means for intermittentlj7 actuating said feeding rolls, means for actuatingr said punch up and down to perforate the Work and penetrate the hacking strip, means or moving said punch later-all)T intermittently, aud menus for graduali),v raising said punch block and holding it elevated during the feeding movement of the hacking strip.

77. In a perforating machine, a punch, a punch hlock, a hacking strip passing over said punch block, feeding rolls for said haeking strip, means for actuating said punch up and down to perforate the work and penetrate the hacking strip, means for moving said punch laterally intermittently, and means for intermittentlyv actuating the feeding rolls frictionally to feed the strip and holding the strip at a level higher than normal during the feeding movement of the feeding rolls.

Tt. lu a perforating machine, a work feeding punch, a punch hlock, a hacking strip passing over said punch hiock, means l'or moving the punch hlock to various elevated positions, means for actuating the punch to per torate the Work and penetrate the hacking strip, and means for intermittently advancing said hacking strip over the punch hlock comprising feed rolls for frictionally7 engaging the hacking strip and means acting in svuchronisin with the action of said feed rolls for holding the punch hlock in one of its elevated positions.

79. In a perforated machine, a Work feeding punch, a punch block, a hacking strip passing over said punch block, means for actuating the punch to pertorate the work and penetrate the hacking strip, means for intermittent@ advancing said hacking strip over the punch block after a series of Work )unchin movements comprising feed rolls Jfor frictionally engaging the hacking strip, and means for controlling the vertical position of the punch hlock in synchronism with the action of .said feed rolls.

S0. ln a perforating machine, the comi-fination of a punch, a movahle punch plate, a hacking strip adapted to he fed acres: said punch plate` means for actuating the punch to punch and feed the work, means for gradually raising the punch plate in order to utilize the full thickness of the hacking strip. and means actuated after a series of punching movements to hold the punch plate iu elevated )osition 'during the feeding movement of the hacking strip.

8l. In a perforating machine. a morahlc punch plate, a hacking strip extending across and adapted to he fed over said puuch plate, strip handling mechanism comprising mefunl for feeding the hacking st rip iutermttcutlyv and means operating in timed relation to the strip feeding' movements for gradually and inteu'mttcntly raising the punch plate to utilize the full thickness of the hacking strip, aid means being constructed and arranged to hold the backing strip in its elevated position during the feeding movements thereof.

n testimoniT whereof I have signed my name to this specification.

PERLEY li. (lniSS.

l ltl CERTIFICATE OF CORRECTION.

Reissue Patent No. 17,208. Granted February S, 1929, to

PERLEY R. GLASS.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, line 5l, claim 1, for the word "packing" read "backing"; page 10, line 93, claim 79, for the word "perforated" read "perforating"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 15th day of October, A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.