USRE10311E - Paper-perforating machine - Google Patents

Description

' 4 Sheets-Sheet 1 R. T. SMITH.

PAPER PBRFORAT-ING MACHINE.

m v a atorzu y Reissue Apr. 1O 1883.

120$ @zz JmziA,

m Val 672) 1 awr 4 Sheets-Sheet 3. R. T. SMITH. 1 PAPER PERFORATING MACHINE.

Reissued Apr. 10, 1883. V

r 48heeta-8heet 4. R. T. SMITH.

PAPER PERFORATING MACHINE.

. Reissued Apr. 10 1883.

tion with the feeding-apparatus.

UNITED? STATES PATIENT OFFICE.-

noswnm. cr. surin, on XASIIUA, mew nam'snum'.

PAPER-PERFORATING MACHINE.

sPEcImcATIdN forming part of Reissned Letcars Patent m; 10,311, dated A ril 10. 1883.

Original No. .IlZLErPl, dated November .3. 15*".

and useful im 'irovemcntsiu Machines for Ier-.

foratin g Paper for Automatic Organs, of which the following isa" specification.

My invention relatesto that class of perforating-machines for which Lettersl'ateut,0 the United States were granted anequpon the B'ith dayof January, A. D. 1880, No. 223,866; and it consists in certain improvements upon the mechanism therein shown anddescribed.

Referring to the drawings forming part of this application, Figure l is a side elevation. Fig. '1! is a vertical cross-section taken upon theliue I .r, Fig. l. 3 is aplau a portion of the frame for supporting the feeding mechanism. Fig.4is a view upon an enlarged scale of the clamp-bar used in connec- Fig. 5 is a section taken in a. plane passing vertically through theperforatiugmechanism from front torear at a'poiutabout -midwaybetween the standards. Fig. 6 isaperspective view, showin g the perforating meehanisrn,the feeding apparatus not being shown.

' feeding the paper sheets to the 'perforators.

the shaft of one of the feed-rolls;

As therein shown, said mechanism consists substantially of two rolls, between which the paper passes, said rolls being tightly pressed together. By the friction or grip of these rolls upou'the paper it is drawn step by step above the perforating-punches,.the revolution of the rolls being effected by a pitman on the main shaft, by which a reciprocating motion is given to a pawl-carrier vibrating upou A pawl mounted on this carriereugages with a ratchet rigidly mounted on the shaft of the roll, and the throw of this pawl is regulated by nuts, adjustable upon a threaded portion of the pitman, in the manner fullyset forth-in the specification of my said patent. I have stated in that specification that the utmost accuracy is necessary in the construction andcomhiuatiou of these parts, as it is absolutely essential to securcthc highest degree of precision in the showing Applicatimrior reissue filed Felmiary 19, List.

stcp-by-step nioyemeut or feed imparted to the pnpersheeh- This method of feeding by means of rolls issubje'ct to some ohjeclion, especially when a number of sheets are fed and .perforatedat the same'time: as the paper ot'the roll s,oru|itil1l ic mum s separated and the sheets broughtjnto true msition. This diiiiculty is causedflhy n e emismm. grip of the rolls, which prevents tin uatnral tendency of the paper-t0 restore' i tsellgz'umh'r [hunt-{inn ol' the guides, to itsproperiposition. Ahn'covcr, as said rolls act successively upon each part of the web, even a slight. misdirection of one ot.the sheets is immediately taken up and will he pcrpctuated and increased. It will not infrequently happen, also, that when several sheets are beingQpertbrated si'niultallconslv one will run outonone side and one upon the other, or even several upon each side, tlu-reby ruining the papeg'or'a considerable quantity thereof, and causing greatloss of time also.

In order, then-fore, to obtain a more accurate feedot the paper and to avoid the objections mentioned. 1 have devised a new method of feeding the paper Sheet or sheets, which consists in drawing the" paper through --the machine by means o't'elipsorclamps, which are successively;applied'to the web or webs at a point near the .jna'chiiw, each new engagement being mzulehcfore'tlw preceding one is discontinued. These clipsor clamps being applied to the paper at convenient intervals, and each clamp receding from the machine after it is applied, a free space is left between the pointof attachment and the guides, thereby allowing sutficient lateral movement to permit the adjustment of each web by the action of the guides. Moreover, as theclip's grasp the webs at a point near ,said guides where they are most likely to be in place, it is evident that, even it any displacement occurs, the sncccssive engagement of-the clamps will constantly tend'to correct-stint. dis-placen1en-t;and ilejstorojmost care 'inaccuracies will frequently occur.

the'she'ets'to' their proper position. Tofcarry out this method I have devised a feeding apparatus consisting of a supporting device upon which the paper may rest, and to which the required 'stepqnotiou is imparted and ,de-

tachable clamps adapted to engage successively and at proper intervals with the paper and draw it under the'die-plate,.eachsucceeding clump being applied beforethe preceding one is'removed. This method of feeding, to-

gether with tlifapparatus by which it'is car ried into effect, constitutes the first part of my invention. A

, -In my said patent ot' January 27, 1880, I

have also shown rand described certain mechanism for imparting a feed moveinen't'to the-sten-- cil, or pattern sheet. This, as shown, is accom plished by the rcvolutiouot" the rol'loverwhich the stencilpas'ses, and with which it en-gages by teeth br cogs placed at of near th'e'ends'of said roll, and entering pertpratio'ns which are" ,f rined nearle'ach edgepf the stencil-sheet.

o acorrespouding error in the arrangement of It is e\ 'idelit that great care must betaken'in forming these pertbratiou'sjn order that each the perforations cut in the'paper sheet. I have therefore invented "and incorporated with the perforatingmechanism-devices for automatically cutting these perforations ina;

blank. stencil'sheet, the arrangement -beinguch thatsaid sheet is fed'to the punches, which- .perforate itsedg'es, by the. same'mechani'sm' which at the same time'is feeding the paper to the perforators. The perforationsin each edge of the stencil form 'a species of rack'f'and they are cut by suitable punchesarranged and operi I ated in the manner hereinafterdescribed. This rack-cutting mechanism of my invention. v

In the process of preparing a stencil-sheet it is necessary to divide its surface into equal forms the second part parts or spaces before it passesinto the hands of the composer, who lays off upon the sur-' face the several sound-openin gs to becut, designati'ng their relative position and lengthby suitable marks upon the sheet, the perforations being afterward cut with a malletandpunch'.

To enable him to correctly arrangethese open ings with relation to each other, as well as to determine the lengthofeach one," ithas here-- tofore beencnstomaryto draw a series o'ftra'us verse lines upon the surface oftli e sheet, sepa rated-by equal intervals, and exactly parallel with each other. This work 'r'eq'uiresthe' utmost care, since the 'harmon y of the music and the entireexecution depend upon the accw racy with which these sound-openings are are ranged and cut- Heretofore this ruling of the stencil-'sheet has been done -by hand. :It is found, however, thatth'e constant repetition of the parallel'li'nes hasa tendency to confuse the eye of the operator, and even with the utiltio'reovei hand-laborflot. this kind is so slow and requires so much care and attention that it adds considerably to the cost of producing the music-paper. and ineorporated with the perforating and rackcuttin g mechanism an apparatus for automatically marking the surface of the blank stencilsheet, with as-many series of dots or points arranged transversely of the sheet as there are dilferent series or rows ofcuttings or soundopenings to be formed therein. This is accomplished by a number of pen'cils or marking-l points, set in areci'procating frame and brought after each feed movement into contact with the stencil. When finished the surface of the shee't will show a; number of dots anranged ex- --act'ly-in parallel lines, both longitudinally and transversely, with eequal intervals between.

exactlyinthe line'in whichthe openings are to bercut, ands-the;iuterval hetweeu any two of the marked dotsisequat to the space out out by-a 'si n gle stroke etthe perforating-punch 'or, in other. words,tothelength of the shortest note unsound-opening used, This markin'g apparatus, which. is, combined with the rackentting mechanism, constitutes the third p'art'of my:inventi m.; .5 3 I 4 V In -order to-cons'eyagclear .ideaof the improvements .which'form my present invention,

patentgranted me January,27, 188,(l, I will brieflyset forth ,thorprincjpal features of the machine shownaud described insaid patent, and will 'then-pointout-more definitely the parts which belongtc my presentinvention. =l\iy.-.said .patenthshows a machine for perforating-'music-paper.inwhicha series of independent pnnchea f v (see Ei'g. 5, of the accompanyingdrawingsgare used toeutthe sheet D, which. is-fedbetween a'die and a stripper' plate directly abovetheperforators. An automatic'select-ion of these punches is effected by-n eans :of dogs G, controlled by a corresponding series of arms, H, having pins m, which engage with the'stencil I! as it passes over: a grooved stencil-roll, K", the dogs G beingbtought'under and into engagement with theirpunches when the. pins m [drop through the perforations in thestenciknand, on the othenhand, being held out of engagement with the punchesas-long as thepinfsmrest upon themnperforated portions ot' the stencil L. The d'o'gsG are mounted npon'a reciprocating carrier-frame, M, which .is drivemupward between-thefeedmovements of the stencil and 1 the paperisheetr :By this upward movement a" those dogs. which are in engagement with any of the punches f operate said punches by :drivingithem up: through thepaper, while the other-punches; notfengaged by the dogs rcmain-idle. Afterjeach stroke the dogs G are tea: yoke-carrier, P, which is mountcd by a spring, 1?, uponthe carrier-frame M. A pivhave therefore invented- Ea'ch lorigitudinal-rowfof these dots is located and -to-aid t-in distinguishing them from the all-withdrawn from beneath the punches, and the arms 11 raised bymeansot' a yoke attached oted lever, P, actuated by a cam, a, on the main shaft, throws the yoke-carrier P backward as soon as the carrier-frameMdescends, causing the yoke 12 to retract all the dogs G, thereby raising all the arms H and lifting the pins m clear of the stencil until the latter has been fed a single step forward. As soon as this feed movement is completed the cam a.

leaves the lever P, and the spring P throws the yoke 10 forward,'allowing the arms H to drop and bring their pins m into engagement with the stencil, thereby effecting a new selection of the perforators. The arms H are drawn downward by either spiral springss beneath the said.arms or by light leaf-springs secured to the carrier-frame M,'a'nd bearing against the rear edges of the pivoted dogs G. The punches f after each stroke are drawn downward by a yoke, n, which strikes upon a.

tooth, 0, upon the back of each punch. This yoke n is attached to the carrier-frame, and the descent of said carrier after each stroke draws all the punches down, and clears them from the paper sheet in time to permit its being fed one step forward.

My said patent of January 2.7, 1880, also dcscribes certain mechanism for imparting intermittent rotary motion to the stencil-roll and to the feed-rolls which move the paper; but this portion of said machine requires no mention, as it does not enter into my present invention.

I will first describe that portion of my invention by which the rack is cut in the stencil-sheet, together with the apparatus by which its surface is marked to prepare it for the composer.

Above the die and stripper plates E F, between which the paper sheets pass, I place a support for a second stripper-plate, T,. extending from side to side'of the machine, and having two die-plates Tone on each side-as seen in Figs.'2 and 5. In the same line with the perforating-punches f, I place two rackcutting punches, f'fone at each end of the line of paper-perforators f. These rack-cut-v ting punches are in all respects similar to the perforators f, except that they are longer and somewhat smaller, to correspond exactly with the size and shape of the teeth e upon the ends of the stencil-roll K". Upon the back of each punch f is formed a tooth similar to the tooth 0, (seen in Fig. 5,) and adapted-toengagewith the yoke n in the same manner.

Upon each end of the carrier-frame M is mounted a dog, G, directly beneath the rack-- cutter f. These dogs are similar to those which operate the peri'orators, and are provided with arms H, the ends of which are slightly bent or curved outward, as seen in Fig. 2, their extremities being provided with pins similar to the pins m on the arms H. Upon each end of the stencil-roll K is a disk, D, having notches or cavities a a formed in its peripheries. These notches are located at equal distances from each other, and, as may be seenin Figs. 2 and 6,-they are placed ex- I'actly opposite to the teeth 6 on the ends of the stencil-roll. By curving the arms H outward the pins upon their extremities are brought directly over the notched disks D, and it is these pins will fall at regular intervals into the notches in said disks, and will thereby cause the dogs G to engage with the rack-cutters f and operate them.

The blank stencil-sheet L is fed over the bed-plate T, its two edges passing under the die-plates T T. It may be taken from a roll, 0", mounted in standards A which, forthe sake of convenience, I place nearlyover the roll B, from which the paper is taken. It will be noted by reference to Fig. 2 that the edges of the blank stencil'sheet pass beneath the die-plates T T, while nearly the entire surface of the sheet is exposed, for a purpose to be presently described. It willalso be noted, by reference to the same figure, that the rackcuttingpunches are in the same vertical plane with the teeth 6 on the ends of the stencilroll. l

The stripper and die plates T and T T rest upon solid supports A bolted to the side standards, A, of the machine. A. socket-bearing is formed in each of these supports to receive a pin, H passing down through the dieplate T into the block upon which said plate is mounted, and adapted to move smoothly up and down in its socket. Upon these pins H is mounted a horizontal bar or support, G, consisting of two metal plates, g1 g separated from each other by blocks G G, inserted be tween the ends of the plates, and bolted in place by nuts H H upon the pins 11. A series of perforations is formed in the plates g g, and vertical wires or marking-pencils W are placed therein, supported at a suitable height by washers d, attached to each pencil, and resting upon the lower plate, 9 Between these washersand the upper plate, 9 are are held down, while at the same time they will yield to any upward force strong enough to compress the springs n ceive the ends of two vertically-reciprocating rods, one on each side of the machine-being attached by nuts a a. A project-ing plate, m is attached to each side of the machine, at some distance below the support G and between the blocks Dand said platesm -is placed a strong spiral spring, N surrounding the rod 1 These springs sustain the support G at such a height that the pencils W are suspended with their points a short distance above the bed-plate T. The supporting-frame G lS 16- ciprocated vertically by means of the rods or bars I which are linked at their lower ends to a lever, M having one of its ends pivoted to the machine. A cam, K on the main shaft of the machine vibrates this lever, and at each revolution of the shaft this cam draws the rods downward, depressing the support Gr far enough to bring the points of the pencils \V evident that as the stencil-roll K revolves The blocks D are extended outward, and re IEO placed spiral springs, n, by which the pencils into contact with the bed-plate T, over which the blank stencil-sheet is fed. The springs a yield sufiiciently to bringevery one of the pencils into perfect contact with the sheet.

I have already directed attention to the fact that the rack-cutting punches f are in the same vertical plane with the teeth 0 upon the ends of the stencil-roll. It will also be noticed that the number of pencils \V corresponds with the number ofperforators f, and that each pencil marks in the exact line of cut of the corresponding-punch below. (See Fig. 2. It should be remarked that in the drawin gs I have illustrated two of the perforators only, although the number usually employed is from fourteen (14) to thirty-nine. (39.) Whatever the number may be, the marking-pencils W should correspond therewith.

I shall describe hereinafter the manner of feeding the blank stencil-sheet, whereby each feed movement is equal to the space or length of a single cut of the punch. It follows, therefore, that the blank stericilsheet after passing through the machine will have its-surface marked in the manner shown in Fig. 3 of the drawings, the longitudinal rows of dots being in the line of the cuttings to be made, while the distance between any two dots, measured lengthwise of the sheet, is equal to the length of a single cut of the perforator. It therefore indicates the length of the shortest sound-opening formed in the sheet. In other words, it

represents a note of the lowest value as music is ordinarily written upon the stafi'. Prepared in this manner, the blank stencil-sheet is ready to be delivered to the composer, who lays off upon its surface an given musical composition. His markings are made in the diflerent longitudinal lines of dots, substantially in the manner indicated by the markings represented in Fig. 3. The sheet is afterward perforated by a hand stamp or punch, the operator cutting out the spaces marked by the composer. When finished it is ready to be pntupon the machine, as shown at L, Fig. 5, and from this stencil any number of musicsheets may be cut by the automatic mechanism already patented to me.

Wires, carbon pencils, or any other suitable marking device may be used for marking the blank stencil; but if wires are used sheets of impression-paper may be laid under them but this may not be essential, as the sharpened points of the wires will indent the paper sufficiently to render their markings very distinct.

I may add that the marking of the stencilsheet, as above described, may be effected in a machine having no especial devices for that purpose. By merely passing the sheet over the stencil -roll and operating the machine the pins m on the arms B may be used as markers, or pencils may be-placed on the said arms. The latter, being lifted by the yoke p at every revolution of the shaft, and being lowered again after each feed inoveinelit of the stencil-roll, are evidently adapted to be used for marking in the manner described, al-

i applied.

thus-Eu the process is longer. Moreover, the perforating mechanism cannot be used while the sheet is being marked in this manner, whereas in my present invention any number of blank stencil-sheets may be prepared without interrupting the action of the perforating mechanism in any manner.

I have already. mentioned that in feeding the paper sheet or sheets I have found by experience that difficulty may be met with in using the feed-rolls shown in my patent, and in the opening portions of this specification I have named some of the objections to their use. For the purpose of avoiding devised a new method of feeding the paper I sheets, together with the apparatus hereinafter described for carrying it into effect. This method consists in holding the paper by means of clips or clamp bars, which are adapted to engage with the paper sheets successively and at points having a between, the arrangement being such that each clamp after performing its function is not released from engagement with the web until its successor has been brought into action. These clamps move step by step with the paper sheets and draw the latter through the machine. Moreover, each clamp engages with the paper at a point near to the machine and is released therefrom at apoint more remote. The point of attachment being not far from the guides, it is clear that not only will the clamps grasp the paper when it is in a correct position, but if displacement should occur each engagement of the clamps subsequently will tend to restore the sheet or'sheets to a true position, since the action of the guides which confine the edges of the several webs constantly tends to correct any deviation, and as the clamp recedes from the point where it was applied,the interval of unconfined web is sufticient to permit lateral movement enough to efl'ect the said result. The most important feature of this method is the successive engagement of the clamps, whereby the sevcralwebs are grasped at separate points, each new engagement being made at a point where the several sheets are correctly aligned with each other under'the action of the guides. As the paper is drawn through themachine, slight inequalities will not affect the feed, since the clamp steadily holds all which they were grasped when the clamp was It should also be noted that, as one clamp is applied before the other is released, there is no interruption of the t'eed movement. To accomplish this method of feeding I have devised the following. apparatus In front of the machine I erect a frame, A, extending any suitable distance, and firmly braced and supported, to prevent vibration. The upper part of this frame should be nearly upon a level with the stripper-plate E, so that the paper sheet may pass from the machine upon a horizontal plane, or nearly so. The top of the frame is composed of two parallel strips, A, at each end of which is journaled a roll having its top these objections I have suitable interval or space the sheets in the position in in or about in the plane of the upper side of said strips A. These strips are adapted to support an endless belt, B, which is composed of separate slats of wood b,(see Fig. 3,) riveted near each end to flexible or elastic strips of metal I)". The slats are placed close together, there being but a small space between, and each end of every slat is shod with a small rectangular plate of metal, I), which projects somewhat beyond the extremity of the slat. The length of the slats is somewhat greater than the width of the blank stencilsheet, and the plates projecting from their ends rest upon the edges of the strips A.,

At the extreme end of the frame is aroll having atits ends disks 0 c, which are notched at intervals to receive the ends of the metal plates b It is from this roll that the belt receives motion, and the notched disks 0 a, by engaging with the slats of the belt, prevent the latter from slipping on the roll.

At frequent intervals uponthe belt a slat is provided with elongated metal tips or plates, having the prolonged portion bent upward and then inward or toward each other. This construction, which is for a purpose shortly to be described, may be seen in Fig. 4, where one of the slats b is detached from the belt, thev metal plates mentioned above being indicated by the reference letterb.

To-attach the paper sheet to the belt 1 use a clamp of peculiar form. It is composed of a bar of wood, E, a little larger than the slats b, said bar having a small flat metal plate, 6, fastened to and projectingoutward from each end of the bar E, the plates'being attached to one of the vertical sides of the bar, so that they stand in a vertical plane. At the center of the bar E are placed two upright plates, at" a", between which is mounted a cam, 9, bearing against a pin, h, placed loosely in a socket in the bar. While the upper end of this pin bears against the cam g, the lower end rests on a thin steel plate, i, fastened at one end by a screw, m, to the bar, and having the other end free.

In order to fasten the paper sheet or sheets D to the belt, they are laid upon the slats, and when in proper position the clamping-bar E is placed upon them at a point where lies one of the slats having the prolonged and upwardly-bent plates 0 The ends of the bar E are inserted beneath the inwardly-bent ends of these plates until the metal pieces .or plates a come into contact with the plates I), care being taken to place the plates 6 upon that side of the plates b farthest from the machine, so that the pull of the sheets shall draw against the plates 1). When the bar E is in position the cam g is turned down into the position shown in Fig. 4, whereby the steel plate-t is firmly, clamped against the sheet, the upward pressure 'of the cam being resisted by the hooked ends of the plates b.

The slats of the belt may be made of a single piece of metal cast in the proper form, and connected by a chain, instead 'of an elastic I hand; or a heavy strip of cloth may be used, and the feed-rolls at the-end of the frame may be covered with rubber; or, again, a large drummay be used, the paper being clamped to its periphery in the same manner in which it is fastened to the belt. The stencil-sheet blank may also be clamped to the belt-in the same manner, and may bel'ed to the rack cut ters and markers by the same apparatus. To accomplish this an idler-roll, R is journaled in standards at the end of the frame nearest the machine, there being space between the roll and thebelt to permit the passage beneath' it of the blank stencil and one or more paper sheets. The edge of the bed-plate T is slightly curved, (see Fig. 5,) and the sheetis carried therefrom down to and under the roll R and being laid upon the feeding-belt, on. top of the paper sheets, it is fastened by a clamp in the manner already set forth. By this arrangement I secure a feed for the blank stencil-sheet which is exactly equal tothe feed of the paper, and am able to prepare the stencil and cut the paper at the same time. The flexible belt passes over the rolls at the ends of the frame, and its weight is partly sustained beneath by a roll, B. To give motion to the belt I employ a pawl-and-ratchet feed similar to that shown in my patent of January 27, 1880, hereinbefore referred to.

The pitman A Y D, Fig. 1, passes from the main shaft of the" machine to the distant end of the frame, where it engages with a pawl-carrier, I, mounted on the shaft of the roll, and having an eye, d, through which the end of the pitman passes.

Upon the end of the latter, which is screw-r threaded for some distance, nuts 6" e are placedone upon each side of the eye d. By causing these nuts to approach or separate from each other the throw of the pawl 0 may be regulated and the feed movement correspondingly varied.

It may be desirable, owing to the weight and length of the pitman D to attach to the frame A a support withinwhich the end of the rod may play.

It is obvious that in using this feed an operator must attend the machine to affix and remove the clamps E which must be released before they reachithe roll 0,- a second clamp having been previously aflixed at the end nearest the machine. In this way the paper sheets and the stencil may be allowed to run off the belt upon the floor, where they may be rolled up as the perforated strips increase in length. In my present invention I feed the stencil in amanner different from that shown in my patent of January 27,1880. Instead of taking it from a pay-off roll, I let the sheet lie loosely upon the floor in a roll, as shown at L, Fig. 1. Thence it passes over the stencil-roll K" to the take-up roll K. The stencil-roll isdriven by a pawl-and-ratchet feed similar in all respects to that shown in my patent of January 27, 1880. The take-up roll K also is revolvedv by a belt, K, passing from a pulley on the'main shaft to a pulley on the shaft of the roll.

too

55 ible strips, and adapted to rest and slide upon paper web or l. The method herein described of feeding one or more Webs of paper to a perforating-machine, said method consisting in grasping the webs by clamps which are successively engaged therewith and drawn step by step through the machine, each succeeding clamp being brought into action before the preceding one is released, substantially as and for the purpose set forth.

2. The combination, in a perforating-machine, of a series of independent punches, a corresponding series of dogs adapted to engage with and to operate said punches, a pattern-sheet representing the relative length and arrangement of the sound-openings to be cut in I the paper, and by which the automatic selec tion of the punches is effected, with a feeding apparatus having a step-by-step movement, the paper sheet or sheets being held by clamps, which are engaged successively therewith, each clamp being applied to the web or webs before its predecessor is released, whereby the paperis drawn under the die-plate, each feed movement being of such length" that those punches having repeated action will cut an opening adapted to substantially as and for the purpose specified.

3. In a punching-machine, the combination,

.with the punches and their operating mechanism, of the stencil-sheet having openings of varied length and arrangement, and an endless belt to which the paper sheet or the stencil-sheet blank, or both, which they are drawn step by step over the punches, substantially as and for the purpose set forth. r

4. The combination, with the perforating mechanism, of an endless belt, the rolls at the ends of the supporting-frame A, and the removable clamp-bars E,adapted to be engaged successively with the paper web or webs carried by said belt, in the manner and for the purpose set forth.

-5. An endless feeding-belt for perforatingmachines, composed of slats attached to flexthe upper surface of the supporting-frame A, in combination with a'detachableclamping-bar resting upon said belt, and adapted to engage with its slats, substantially as and for the purpose set forth. I v

6. The combination, with the stencil-roll,of a notched disk, a dog mounted upon a reciprocating carrier above said disk, a cutter or punch placed above the dog, and a die and stripper plate between which the edge of the give a continuous sound,

are clamped, and by stencil-sheet passes, substantially as and for the purposes set forth.

7. The eombination,with the punching mechanism, of a stencil-marking mechanism consisting of a series of marking points, wires, or pencils mounted on a reciprocating support, and adapted to be brought into contact with the stencil-sheet blank at regular intervals, substantially as and for the purpose set forth.

8. The combination, with the punching and marking apparatus, of a rack-cutting mechanism consisting of a punch or punches arranged to cut the stencil-sheet blank', said punches being controlled by corresponding dogs, which are mounted on a reciprocating carrier, and caused to engage with the rack-cutters by means of a notched disk on the stencilroll, substantially as and for the purpose'set forth.

9. The combination, with the perforating mechanism, the rack-cutting apparatus, and the marking devices, of a feeding mechanism consisting of a flexible belt passing over a suitable supporting-frame in front of the machine, adapted to feed, either separately or simnltaneously, both the paper sheet or sheets and the stencil-sheet blank, the one to the perforators'and the other to the marking and rackcutting devices, substantially as and for the purpose set forth.

10. The combinatiom'with the stencil-marking and rack-cutting mechanism, of the flexible feeding-belt and a roll mounted above it, the lower side of said roll being near the surface of the belt, and said roll being placed at the end of the'frame nearest said marking and cutting mechanism, substantially as and for the purpose specified.

'11. Aelamping-bar adapted to engage with the feeding-belt and attach the paper and'stenoil-sheet blank thereto, said bar consisting of a-block having flat vertical projections at its ends, with a cam and pin, h,iu thecenter, and a flat steel plate, 21, upon the lower side, substantially as and for the purpose set forth.

12. Aflexible feeding-belt consisting of slats connected by elastic or flexible strips, said slats being shod at their ends with projecting metal plates, certain slats in said belt being provided with plates which are prolonged and bent upward and inward .to furnish afastenin g for the clamp-bar, substantially as set forth.

13. The combination of the frame A A, the flexible belt constructed as desoribed,the roll ournaled in standards at the end of the frame and above the belt, the clamp-bar, the pitman for driving said belt,the independent punches, v

the series of selecting and operating dogs, and the marking wires or pencils, substantially as set forth,

14. Thecombinatiom'with the marking'mechauism, of the carrier M, the dogsG, having curved or outwardly-deflected arms H, the disks D, having notches a a, &c., and the stencil-roll, all substantially as and for the purpose set forth. 7

15. In a paper-perforating machine,the comhim;uou,withtheindependentdogs and pnnchism for reciprocating said bar, substantially I es, the carrier-frame on which said dogs are mounted, and the stencil-roll having notched disks mounted thereon, of the rack-cutting punches, and a series of pencils or wires adapted to be reciprocated against a bed-plate over which the stencil-sheet blank is fed, substantially as and for the purpose specified.

16. The combination, with the stencil-roll having teeth or cogs es, of a. single take-up roll, a friction-table over which the stencil passes before reaching the roll, and devices for feeding both the stencil and the take-up roll, substantiallyas and for the purposes set forth.

17. The combination, with the supportingbar G of the marking-wiresW, mounted movabiy in said bar, the springs n, and mechanas and for the purpose set forth.

18. The combination,with the marking wires or pencils \V, of the bed-plate T, the dieplates upon each side thereof, the rack-cutters f, the dogs G, having bent arms H, provided with pins, and the stencil-roll K", provided with notched disks, all substantially as and for the purpose set forth.

In testimony whereof I have hereunto signed 'my name in the presence of two subscribing wit- ROSWELL T. SMITH.

Witnesses:

CHAS. B. TILDEN, NETTA WHEELER.

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