US1565109A

US1565109A - Apparatus for feeding webs is correct register

Info

Publication number: US1565109A
Authority: US
Publication date: 1925-12-08
Anticipated expiration: 1942-12-08

Description

Dec. 8, 1925'- w. ROSE' IPPARATUS FOR FEEDING WEBS IN CORRECT REGISTER" Filed March 1, 1923 3 Sheets-Sheet 1 By hzlsfltameys MMM Dec. 8, 1925' 1.565.109

w. ROSE APPARATUS FOR FEEDING WEI-SS IN CORRECT REGISTER F led March 1. 1923 3 Sheets-Sheet 2 fnuentor h ZZZL'a/n [Pose W. ROSE APPARATUS FOR FEEDING WEBS IN CORRECT REGISTER Dec. 8, 1925- Filed March 1,

W W ma w w W WW Patented Dec. 8, 1925.

PATENT FFICE.

" WILLIAM ROSE, OF GAINSBOROUGH, ENGLAND.

APPARATUS FOR FEEDING WEBS IN CORRECT REGISTER.

Application filed March 1, 1923.

To all whom it may concern Be it known that I, lViLLLur Rose, a subject of the King of Great Britain, residing at Albion lVorks, Gainsborough, in the county of Lincoln, England, have invented new and useful Improvements in Apparatus for Feeding Webs in Correct Register, of which the following is a specification.

This invention relates to apparatus for feeding strips, or webs, of paper, or other material, in correct register, relatively to cutting, embossing, or other, devices, and is more especially intended for feeding, from a roll, to a cutting device, a strip of paper, having thereon, at equal distances apart, printed matter, or the like, and, for brevity, we will describe the said invention as so applied, from which its other applicatons will also be understood, it being generally applicable for feeding strips, or webs, of paper, or other material, in correct register, for all purposes, so that snccessive portions of the strip, or web, are brought into correct position relatively to its length.

The principal object of this invention is to provide a simple and efficient apparatus whereby the strip, or web, is fed with great accuracy so that any designs, or other matter, which may be printed thereon or otherwise applied thereto, will be successively brought into proper position relatively to the device which is to operate upon the strip, or web.

Presnming, as aforesaid, that a strip of paper with designs, or letterpress, (which we will refer to as printings), printed at equal distances upon it is to be fed to a cutting machine; the said strip has perforations at intervals therein in accordance with the length of the labels, wrappers, sheets, or the like, to be out therefrom, and in exact and predetermined position relatively to the said printings.

According to this invention the strip is led between a first pair of rotating rollers, then through a retarding device, and after wards between a second pair of rotating rollers, provided with a device which will engage the said perforations and thereby bring the strip into such position. that the said second pair of rollers will feed the said strip in exact position for cutting. The said engaging device referably consists of a projection, or toot on one of the Serial No. 622,232.

rollers of the said second pair; a corresponding cavity, or groove, being provided in the other roller of the said second pair, the said projection, or tooth, being so positioned as to engage at the proper times, with the successive perforations in the strip.

Each of the said pairs of rollers will intermittently feed the strip in the direction towards the cutting device, this being effected by portions of the peripheral surfaces of the rollers of each pair, which bear upon the strip between them, there being a gap between these peripheral surfaces so that, during the rotation of the rollers, the operative and inoperative portions thereof are alternately opposed to the strip, the pairs of rollers being so set, relatively to each other, that, during a portion of the time the second pair of rollers is feeding the strip forward, from the aforesaid retarding device, the first pair of rollers is not in operative engagement with the strip, and. alternatively, during a portion of the time the said first pair of rollers is feeding the strip towards the said retarding device, the operative surfaces of the second pair of rollers are not in engagement with the strip, but at this particular time, the said tooth, or projection, (which has engaged one of the said perforations in the strip) feeds the said strip forward from the said retarding device.

The said retarding device is supported between the first pair of rollers, and the second pair of rollers, in such a position as to cause the strip at this part to be deviated from a plane tangentially disposed relatively to the peripheries of both of the said pairs of rollers.

The said retarding device preferably consists of a plate, or block, secured to the frame of the apparatus, and a brake-piece supported in such manner as to press, with but slight pressure, the strip upon the said plate, or block, and prevent the strip advancing at this place unless drawn, or pulled, through the retaining device by the second pair of rollers, or by the projection,

n A v1 2] Figure l is a plan, of an. apparatus constructed in; accordance with our 'i-ii'vention.

Figure 2 is a side elei'ation, partly in sece and the intervening retarding device. is a plan of a portion oi? strip of paper to be dealt With she i'inp; convenient relative a rangeinent ot the perforations and printings.

Referring to Figures 1 and It; i represents the framework which supports the various parts of the apparatus.

A main driving -spindle 2 is .inonn ed in bearings carried i the franteworlr; the said shaft having secured to it, a toothed Wheel 3, to convey movements oft rotation therefrom to the rotatable rollers.

The upper roller land a lower roller o constitute the first pair of rotntahle rollers and the upper roller 6 and nor roller i constitute the second pair of i'otatahl rellers.

The rollers and T, are secured respeetively to the spindles 8 and '10 ion alled in bearings 02 rried by the fl'itlllQW-fi) A toothed wheel 11 is secured to one end of the spindle and a sin'iiler toothed Wheel 12 is secured to the corresponding end oi the spindle 8.

An intermediate toothed Wheel is secured t a short spindle re hearing 15 on one side of the framework and, retained. in position by the collar 16.

A spindle 17 is supported by, but is Jo rotatable in, hosses n, the framework and the toothed Wheel 18 is rotatably carried on the end ot the spindle 17. By means of the gearing described rota-tire iveii'ient is transmitted from the main drivir pir lie 2 through the toothed Wheels 2-5, 1:3 and il in the spindle l0 and thence by means of

toothed Wheels

18 and 12 to the spindle 8.

The upper roller l of the first pair of rotating; rollers is secured to a .i'piniile i which is journalled in hearings Eli} and 53th carried by

areas

21 and 21. pi'v'otally sup tion and Figures 3 and i are longitudinal sections showing different positions oi: the first and second pairs oi roll a lo ported at their upper ends upon s spin: e 22 carried in bosses on the lirninei.

The upper roller 6 of the second pair of rotating; rollers is secured to a spinele 24l- WlllCll journalled in hearings and. 25

carried by

arms

26 and 26" pivotalljv supported at their upper ends upon the aforeraid spindle 22. Lugs 27 and 27, enteni'l upwards respectively from the

arms

21 and 21* and

similar lugs

28 and 28*, extend from the

arms

26 and 26 the lugs 27 coming opposite the lug 28 and the hip; 27 coming opposite the lug 28 and a spring 29 being placed between each pair of lugs so opposed and acting to retain the upper rollers l and 6 in contact with the strip as it passes between the said pairs of rolleru.

ieenioe The ends o1 the spindl and 52 5: have seemed ell pinmarked respe "F iieh on; f: like pinionu spindles of the lower po .7 s provided V correspond). iroi'ided in the perip (3 of the said The projection or too to engage the proper 'rations in the r s are arranged 3 alone the said ositions relati ioct: causes a disposi-rd r lati first and second pairs of rollers.

ilhe aforesaid retarding: device prises a brake-piece 239 the endrt or nions, oi? which slots 4-0 in the f 37. The said brake piece pressing wit 1 z s it pressure, the strip 355 against a pe tion ell oil the iolocl: do the eby the strip 33 ai'ivencino" at this i drai 'n, or pulled, by the seeond pair oit ers. or h the pro ectioin or tooth o l; 1Y1 .2 I l l inereoi.

The said cutting u-ei'iee "acted as follows: eeured to the inain driving a M. ir in. it strip -o of WOOl ahie Inz'iterial seemed in recess in. the seid it. 1 rotatafol supported its out 4:8 earried hy the irainin A :7 i is so cured to the spindle and .iiidii'iaf D Y WM it 'ijilti'l 21s the said 1' toother pinion iii seen engages with a (JOILQSEJOHd rotates. spindle ii thed pinion Whie is secured to in (li'ifiilfl spi re 1:.

in the example oi construction We have Lil iliustratcd the relative proportions of the several toothed wheels and pinious are such that at each rotation of the main drixing spindle 2 the rollers of the first and second pairs make one revolution, and the cutting device is operated to sever one sheet from the strip The dimensions of the'operative surface, or surfaces, of the first pair of rollers 4: and are such to ensure that the rollers intermittently feed the web forward to the block 36 and coacting brake piece 39 at a speed slightly in excess of the speed at which the web is drawn from the block and brake piece. The dimensions of the operative surfaces of the second pair of rollers (i and 7 and the position of the said surfaces relatively to the projection, or tooth, 34, are such as to ensure that each of the perforations 49 in the strip whilst the said operative surfaces are in engagement with the said strip, will in turn, by the rotation of the said second pair of rollers, be brought into such position that the projection, or tooth, 34:, will readily engage with one of the perforations 42.

Whenthe apparatus is in action the first pair of rollers 4: and 5 feeds the strip 33 towards the brake-piece 39 which temporarily arrests forward movement of the said strip so that a portion thereof assumes an arched shape (as seen in Figure 2) and accumulates between the said first pair of rollers 4 and and the retarding device constituted by the portion 41 of the block 36, and the brake-piece 39 this accumulation or arching being ensured by the upper portion 38 of the block 36 being so situated as to deviate the strip 33 from a plane tangentially disposed relatively to the peripheries of the

rollers

4 and 5, that is, to take a course longer than a straight line between the rollers at and 5 and the retaining device 39-4t1.

The pressure which the brake-piece 39 exerts upon the strip 33 is so slight that whilst the first pair of rollers 4. and 5 is feeding the strip 33 forwards towards the brake-piece 39 the projection, or tooth 34 on the lower roller 7 of the second pair of rollers will pull, or draw, the strip 33 to the necessary extent without tearing, at the perforation 42, or otherwise injuring the strip which may therefore be of thin or tissue paper of but little strength.

Whilst the second pair of rollers 6 and 7 is inoperative upon the said strip the projection, or tooth 34-, by engagement with the forward end of one of the perforations 49, moves the strip so that one of the printings 43 is brought into proper and exact position relatively to the operative portions of the peripheries of the second pair of rollers. By the continued rotation of the said rollers the strip is fed forward in correct position relatively to the cutting device, whilst the projection, or tooth, 34 passes out of engagement with the perforation 42.

For a portion of the time during which the strip 33 is being drawn, or pulled through the retarding device, by the second pair of rollers, the first pair of rollers does not engage the strip, because the inoperative surfaces of the said rollers are presented thereto and the accumulated, or arched, portion of the strip, between the said rollers and the retarding device, is easily drawn, or pulled, through the said retarding device.

Immediately before the operative surfaces of the second pair of rollers leave the strip the operative surfaces, of the first pair of rollers, again engage the strip and feed it towards the retarding device.

As the aforesaid operations are repeated, the strip is, at each operation, fed the required definite extent towards the cutting device, and will be out at the exact places required to separate the strip into the requisite lengths with the printings in proper position thereon.

\Ve do not limit ourselves to the precise details hercinbefore described and illustrated in the accompanying drawings as modifications may be made without departing from the nature of this invention; for example, instead of there being but one perforation for each length into which the strip, or web, is to be out there may be two, or more, perforations and a corresponding number of projections, or teeth, and recesses be provided on, and in, the rollers of the second pair.

What I claim is 1. In apparatus for feeding webs in correct register, the combination of two pairs of rotatable rollers and a retarding device between said pairs of rollers, in which the retarding device consists of a plate secured to the frame-work and a brake-piece adapted to temporarily arrest the forward movement of the part of the web fed towards the said retarding device by the first pair of rollers by pressing slightly upon the web until it is drawn through the said retarding device, as hereinbefore explained.

2. In apparatus for feeding webs in correct register, the combination of two pairs of rotatable rollers and a retarding device between said pairs of rollers, in which a portion of the retarding device is so shaped and arranged that the part of the web between the first pair of rollers and the retarding device is caused to properly deviate from a plane tangentially disposed relatively to the peripheries of the two pairs of rollers; as and for the purpose described.

In testimony whereof I have signed my name to this specification.

WILLIAM ROSE.