US1578436A - Sheet-control mechanism - Google Patents

Description

March 30 1926. 1,578,436 7 F. HERB SHEET CONTROL MECHANISM 7 '0 all whom it may concern 1,578,436 ENTZQFFICE- FREDERICK HERR'OF; Biaoo LYN, NEW. Yong, assrenoerr Mnsirn nss remvrnn'rs, I

- .TO B. HOE nNnoo.,,I1\T c., or NEW,YO-RK N. Y,",'A oonroaarron onnnw YORK;

seam-common (MECHANISM.

Application filed Ma ne, 1924. Seria1 "No.-'7 1 2,519; 1

Be .it known that I, Fnnn'nnion HERB,- a citizen of the UnitedStates, residing at :Brooklyn, county of Kings, and State of New York, have invented certain new anduseful Improvements in Sheet-Control .l\ Iecl1a-11ism, fully described and represented in the following specification and the ac-,- con'ipanying."drawings, forming a part of This invention relates to certain improvements in devices forforwarding paper in the form of a web or sheetscut therefrom and is an improvement on the sheet control mechanism of my prior Patent No. 1,474,364. As set forth in that patent, in certain types of paper handling machinery, such for. 111

stance,'as a-rotary folder, the web is forwarded to a rotary carrier or folding cylinder and between it and a co-operating abutment, usually a cutting cylinder which acts to cut asheet from the web. Such carriers are provided. with sheet takinga devices which maybe in the forni'ofpins. These pins, when employed, take the head of each sheet and carry it partially around vthe cylinder. around, a sheetlength is'cut from the web.

It may happen that there will be a slack,

in the web which would cause the cutting cylinders to operate too soon andyto pro-j duce what is technically known as a high cut. This trouble is overcome'with the construction shown inmy patent abovereferred to, in which thereis provided yielding friction members which act to hold the sheet taut and in proper position for the cutting,

these yielding bearers being arranged: in

fixed relation with the cylinder. I It frequently happens, "however, that web of difl'erent'wldths are run on the same ma chine and bearers are arrangedinfixed relation with the cylinder. While suitable for aistandard width web, these would not be in the right position for a narrower web, as for instance, where a newspaper is changed, say from six to four columns. The special object of the present invention is to provide a bearer construction in which the bearer is adjustable widthwi se of the member on which it is carried so that it can beadjusted to coveranywidth web which may be passing through the machine.

A further object of the invention is to provide a simple and efiicient construction by As the pins take the sheet ed on the-member.

ly referred toqin view, the invention con sists in certain novel parts, arrangements and combination which will be described in connection with the accompanying drawwhichthe bearers maybe adjustably mount- 7 lViththese'and other obiects not specificabw 'ings, "and'the novel features point'edontinthe claims hereunto annexed Referring to these drawings 7 65 r-xfFi'gure 1 isa side elevation of so' much of a rotary sheetcarrier as necessary for,

an understanding of the invention;

bigure 2 is across sectional view on an j l l'ged scale, the section b i taken the hue AA f Fi 1 and I t Figure 3 is an enlarged faceview ofthe bearer. 4 v

Referringnow to these drawings, the in ventionl hasbeen illustrated asemployed,

with a'rotary folderof a printing, machine in which a printed Web is cut and folded. It will be understood, however, that the invention is applicable for handling a web or sheets cut therefrom from a source other than a printing machine. I

In these drawlngs, 1 indicatesfside frames ofany suitabl'echaracter for supporting the parts, In the particular construction illus trated the Web Whas sheets cut therefrom which are foldedby a7'rot'ary folder. As illustrated, such a folder is provided in the form of'a "cylinder 2 supported ona shaft;

2 suitably journaled in 'theside "frames 1' of the machine, before referred to; 1. This cylinder 1s provided with sheet-taking devices intheformof 'sets" of pins 3, 4." In

the particular construction shown the cylinder is capacitated to take-two sheets aroundand the two setsof pinsi3,'4 are carried in arms 5, 6 on operating shafts 7, 8, these shafts being operated toproject and withdraw the, pins atthe proper times through the proper mechanism used for this 'p ur pose and {not here illustrated. The folding 100 is-effected by a rotary folding blade 9 car- V ried on a shaft 10, this blade tucking the product to be folded into the bite of folding'ofi rolls 11,12." The folding blade is operated as usual in this type of-folder by means of a gear 13 on the folding'blade shaft, this gear meshin with" an internal gear 14 fixedly mounted onthe frame of thernachine. v i

Gmoperating'with this folding cylinder is '2 an abutment 1betit een which and the [cylinder the sheet is forwarded, In the particular construction illustrated where sheets are to be cut from th'e web, this abutment ism the form of a cylinder lfi carried on a shaft 16.1

The cylinder is provided with a cutting blade 17 and the cylinder 2 is provided with the usualco operating woods 18. As shown,

the cylinder is a collecting-cylinder,'be-

ing half the diameter of the folding cylinder and is provided with sheet taking devices in the form of pins 19, it'beingwvun .derstoodfthat when collecting," one lot-the sets of pins on the folding' cylinder will be @silenced.

In the openation ,offthis' type of folder,

the leading end of the web is taken by one of {the sets of :pins, as the pins 3, and

carried part wayaround the cylinder 2. As it gets-to the folding off position the cut- ;ting: blade 1;? operates to sever the sheet.

It may happen that ,there is a slack in the I web, in which :eyent the cut will come in the {wrong place.

Furthermore, the whole strain oi carrying the sheet is at the pins and .in'case of a am, particularlywhere multiple products are being handled, tears or other injury to the sheet are veryliable to happen. In accordance with the invention means are provided for yieldingly engaging the products for preventing this and these means are mounted and arranged so that they may beadjusted widthwise of the cylinder to WVhile the specific construction of these means maybe-varied, in the particular construetion shown,- they are in the form of yielding {segments which; may be conven= ientlyp-iormed of steel strips.

stnuctions. these segments have a bodily yielding unovement, being. normally projected beyond the cylinder walls so as to engage the paper, but yieldingly mounted so as to yield somewhat if a thick. product ';is passing through the machine. To pro- Ivide this yielding movement the bearer segmerits are,'as shown, spring seated, being seated against springs indicated by the numeral 21.- In the best constructions, tur- .ther1nore,to afford ,a good engagement with the. product, the segments have a roughened or milled faoe,as shown at '22 in: F ig.-3. In

accordance with the invention thesev segments are mounted in the cylinder so that they may be adjusted widthWise thereof so as to engage the sheet at the margin points,

that is, at points 'betweentheprinted sur engage products of different, rwfidths. r

faces so as to avoid smutting otthesheet.

lVhile the specific construction for etl'ecting V thismay be somewhat varied, the cylinder is provided.withlo ie or more recesses; 23, two such [recesses] being sh0m1;in;t;11e particular constructionillustrated, see Fig. '1. The segments are mounted in boxes "2 L adapted to havea sliding movement in the recesses 1and the segments are retained in the boxes by reducing the ends thereof, as shown at 25, these'reduced vends taken under flanges 26 formingthe top of the box.

These boxes 24. are adjustably secured inthe cyli-nder in any suitable manner.

In the particular construction illustrated the re- .cesses 23 Tare provided with longitudinal grooves :27, and the boxes are provided at each side with cars 28 in which are vclampingf nuts 29. V Thelower ends of theseiclamp ing nuts have (see Fig. 2) oppositely inoli-ned faces 'w'hioh jengag'egthe sides of thegrro'oves 2.7., thesegroovesbeing, as shown at 81, under-cut toreceive the inclined sides ofthe nuts. 7 P

- Nith this construction the bearer segments may be veasily and quickly adjusted,

to anydesired position on the cylinder so 5 'as to engagelmargins' of sheets of widely arying widths, and a very eflicient construction is provided. H

The folding cylinder Qfinay be driven in any suitable manner, as from -a miter gear 32 on thecylinder shaft. ,T'he cylinder I shaftvat its other end also carries a gear 33 which meshes with. a gear Seon theend of a shaft '35 whic'hcarriesone of the tolding rolls, as the rollwll before referred to. The rolls 1'1, .12" aref'intergeared by gears :36 so asyto rotatertogether in opposite directions to {fold off the products tucked" be tween .them by the folding blade;

. With the construction shown and dcscribed, a. veryefiicient and easily :manipw lated device has'been provided tor handling sheets so as toprevent injury ztothe sheet andto prevent high cuttingwhen thesheets are cut-from the web, While the specific form and means for adijusting'the friction segments orbearers have'ibeen described in the preferred forms, it will be understood that various forms might "be employed and -mountedto efiect the purposes of the inven tion, "andit will. be understood. that the invention will include changes and variations in' the form and mounting of the bearer segments. lVhatI claim is: 'j

1. The combination ofa; rotary carrier having' sheet taking devices, a co-operating abutment bet-we'en'which' and; the carrier a product passes, yielding friction devices car- .ried by one of the @members and enga ing the product, and means for movin -"the riction devlces-w-idthwise of the surface of the member.

a 2. The combination of a rotary carrier having sheet taking devices, a co-operating abutment between which and the carrier a product passes, yielding friction devices carried by the rotary carrier, and means for moving the friction devices widthwise of the surface of the carrier. t

t 3. The combination of a rotary carrier having sheet taking devices, a co-operating abutment between which and the carrier a product passes, and yielding friction devices arrangedin sets carried by one of the members, each of the friction devices being movable widthwise of the member. H

e. The combination of a rotarycylinder having sheet taking devices, a co-operating abutment between which and the cylinder a product passes, recesses in the cylinder, holders movable widthwise in the recesses, and bearer segments mounted in the holders.

5. The combination of a rotary cylinder havingsheet taking devices, a co-operating V abutment between which and the cylinder a I mounted in the holders.

' product passes, recesses in the cylinder, hold ers having a sldewise sliding movement in holders in adder, means for locking the seated bearers usted position, and spring 7. Thecoinbiiiatioir of arotary cylinder having sheet taking devices, face-operating] abutment between which and the cylinder product-passes, recesses in thefcylinder,

grooves n the recesses, holders having a sidewise movement in the recesses, means carried by the'holder and co op'erating with the grooves to secure the holders in the recesses, j and bearers in the holders. 7 e 8. The combinatioir'ofa rotai'y cylinder r having sheet taking devices,a co-operating abutment between which. and the carrier a 1 product passes, recesses in the cylinder, grooves in the recesses, holders having a sidewise movement in the recesses, friction bearers in the holders, and means carried by the holders and engaging the grooves for locking the holders in tCl.]UStQCl'pO Slt1OD.

9. The combination of a rotary folding cylinder havingsheet takingpins, a co-oper ating cutting cylinder between'which cyliii ders a product passes, yielding friction devices located on the folding cylinder in front ofthe pins, and mea'nsfor positioning the friction devices at various points widthwise of the surface of the cylinder.

10. The combination of a rotary cylinder having sheettaking devices, a co-operating abutment betweenwhich and the cylinder a product passes, holders movable widthwise of the cylinder, and bearer segmentsinount- 7 -ed in the holders. ers having a sidewise movement in the cylin-f In testimony whereof, I have hereunto set I my hand.

FREDERICK HERB.

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