US1805510A - Machine for folding and scalloping paper sheets - Google Patents

Description

1 1931. s. J. CAMPBELL I 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 5 Sheets-Sheet l IN V EN TOR.

ATTORNEY May 19, 1931. s. .1. CAMPBELL 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 5 Sheets-Sheet 2 INVENTOR.

J2 ag/1%.

ATTORNEY May 19, 1931. a. J. CAMPBELL 7 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 3 Sheets-Sheet 5 INVENTOR'. ZJWUZ/ BY /g@ j j) ATTORNEY 4 front standards 11 support a top rail 13and Patented May 19, 1931 UNITED STATES SAMUEL LGAMPBELL, or GREEN BAY, wls'consm, lissrenon TO HUDSON-SHARP 1mv PATENT? OFFICE.

cnmn comenxorennnnnmr, WISCONSIN, A c'onronerron or WISCONSIN MACHINE non nonnrrrohivn SGALLOPING rhrnn snnn'rs Application ineemi ustie, 1929. Serial No. 38 ,767;

This invention relates to a machine privmarily designed for scalloping :the edges of paper napkins and folding the same by continuous' operation. The machine is designed to scallop the edges of the paper web as the same is being fed through the machine,- and to thereafter sever the, web into sectionsof the required length, andto cross-scallop the sections in the cross-cuttingoperatiomandfinaland toeutzofl'stripson trimmings 29 from the: edges, of the paper "as it is fed forwardly ly to completely fold the napkinsintoform for=ultimate delivery.- --The'product" of the machine, therefore, is a napkinscalloped on all four of its edges and folded'to'four or more plies in condition for packaging and shipment. I The machine, as a whole, is of the generaltype shown in Patent No.'1,666,086, issued April 17 1928, and the particular devices constituting the present invention'are in the nature of modifications or attachments thereto, so that it is notdeemed necessary to describe in full detail all of the features of the machine, as a whole, except 'inso faras may be necessary to a full and" complete 'understandingof' the special features'of the present invention.

In the drawings, Figure 1 is a planview 1 ofthe machine. Figure-2 is afront view of .the machine. "And Figure-Bisa sectional elevation taken on line 33 of Figure 2:

a The "machine as shown is of 'duplicatexfon mation, so that a descriptionxof one section orcunit thereof will sufiice for both; g

- The machine comprises underframes 10,.

I from eachof which springs'upwardly a front standard lland a rear standard 12. I The the rear standards support a similar top rail 14. The front and rear rails13 andl l are web '17 is'fed. The rails13 also afford a support lforrupwardly extending .journal. moune ings 18\and 19, the former of which terminates in an overhanging head 20 through which: is entered anadjustingscrew 21 which s-means for the adjustment of a journal block 22 which mounts a shaft 23. A lower journal block 24 affords a mounting for a lower shaft 25 which carries a roller 26. The sha'ft 23 affords amounting for a pair of scalloping rolls 27, each havinga scalloping die 28' of" sinuous or undulating formation whichyin coactionlwith the roll 26, serve to givea scalloped edging to the paper web 17 through themachine. The scalloping rolls 27 are preferably adjustable on the shaft 23, sothat'the width of theicut may be varied.

' 1 After passing through the scalloping mechanism; the paper web proceeds inwardlyover a triangular forming plate 31 which serves to give a longitudinal fold to the advancing ers 33 and34, the-former of which is provided with an anvil 35 and the latter of which is provided with a cross-cutting scalloping die 36,1so that as therolls 33 and34r rotate they will measure ofl' predetermined lengths of the web and sever the same along an undu latingjor scalloped line giving the necessary cross-cut to complete the cutting of the napkins jAfter passingthrough the rollers 33 and 34, the advancing web is led between the roller 33 and a folding roller 37, where it is cross-folded by the action of an oscillating folder blade 38 of the character set forth and Y described in Patent No.- 1,666,086. However, the folding and delivery mechanism forms no portion of the I present invention: and 1t is therefore not necessary to describe the same in further detail. V Oneof the shafts 25 is provided atone end with a sprocket 39; which is driven .by a

sprocket chain 40, and positive rotation is impartedifrom the shaft 23 by intermeshing spur an idle roller 30 and thence downwardly over gears 41. The roller 34 is driven by intermeshing beveled pinions 42 which derive power from a shaft 43. Suitable gearing 44 is provided for positively driving the rollers 33 and 32, and sprocket mechanism 45 imparts rotation to the other one of the shafts 25 which, through adequate gearing and connections, imparts a driving movement to the sprocket chain 40 which drives the other sh aft 25. It is not deemed necessary to describe in detail the method of driving the various mechanisms which are so arranged as to properly time the operation of the scalloping dies.

, cutting rolls. which are accurately timed to sever the once folded web by an undulating cross-cut, after which the napkins are finally folded and fed to the point of delivery. The mechanism is one which permits the scalloping operation to be rapidly and accurately formed without complicating or otherwise interfering with the feeding and folding operations, so that the napkins willbe fed, out and I folded by the continuous process and delivand with scalloped edges in condition to be packed and shipped.

' I claim:

1. In a machine of the class described, the combination of a frame adapted to support a paper roll, roller means for producing a scalloped edge cut along each edge of the paper web as it is fed from the roll and means for directing the elimination from the machine ofthe trimmed ofi' edges, a former plate located beyond the edging means and adapted to longitudinally fold the paper web, crosscutting roller means located beyond the former plate. one of said rolls being provided with a scallop cutting die adapted to cross-cut the folded paper web along the cutting line, and

means for positively driving the edging cutters and the cross cutters in timed relation to one another.

2. In a machine of the class described, the

combination of a frame adapted to support a paper roll, roller means for producing a Y scalloped edge out along each edge of the paper web as it is fed from the roll and means for directing the elimination from the machine of the trimmed ofi edges, a former cross-cutting roller means located beyond the former plate, one of said rolls being provided with a scallop cutting die adapted to crosscut the folded paper web along the cutting line, means for positively driving the edging cutters and the cross cutters in timed relation to one another, and folder mechanism located beyond the cross-cutting rollers and adapted to cross-fold the severed sheets.

3. In a machine of the class described, the combination of a frame adapted to support a paper roll, roller means for imparting a scalloped out to each edge of the paper web as it is fed from the roller and means for directing the elimination from the machine of the trimmed of! edges, a triangular former plate located beyond the scalloping roller 1 means and adapted to longitudinally fold a paper web. and a pair of cross-cutting rollers located below the former plate and in transverse relation to the edging roller means, one of the cross-cutting rollers being provided with an undulating die adapted to produce a scalloped cross-cut.

4. In a machine of the class described, the combination of a frame adapted to support a paper roll, 'roller'means for imparting a scalloped cut to each edge of the paper web as it is fed from the roller and means for directing the elimination from the machine of the trimmed ofi'edges, a triangular former plate located beyond the scalloping roller means and adapted to longitudinally fold a paper web, a pair of cross-cutting rollers lo cated below the former plate and in transverse relation to the edging roller means. one of the cross-cutting rollers being provided with'an undulating die adapted to produce a scallopedcross-cnt, and an oscillating fold ingblade located below the cross-cutting rollers and adapted to impart a cross-fold to the severedpaper sheet delivered from the crosscutting rollers.

5'. In a machine of the class described, the combination of means for supporting a roll of paper, roller means located in alignment with the marginal lines of travel of the paper web for scalloping the edges of the paper web as it is fed from the roll means for direoting the elimination from the machine of the trimmed ofl edges. means beyond the scalloping roller means for longitudinallv folding the scallo ed paper web. cross cutting means bevond the folding means and adapted to provide a scalloped out across the paper web. and means for positively driving the edge .scalloping and cross scalloping means.

6. In a machine of the class described. the combination of means for supporting a roll of paper. roller means located in alignment with the marginal line of travel of the paper web for scalloping the edges of the paper web as it is fed from the roll. means for directing the elimination from the machine of the trimmed off edges, means beyond the sealloping roller means for longitudinally fold-- ing the scalloped paper web, cross cutting means beyond the folding means and adapted to provide a scalloped cut across the folded paper Web, means for positively driving the edge scalloping and cross scallopingr means, and cross folding means adapted to, receive theonce folded paper web from the cross cutting sea-Hoping means andadapted to cross fold the same.

In witness that I claim the foregoing I have hereunto subscribed my name this 29th day of July, 1929.

SAMUEL J. CAMPBELL.

Images