US1318337A

US1318337A - Ginia

Info

Publication number: US1318337A
Authority: US
Publication date: 1919-10-07
Anticipated expiration: 1936-10-07

Description

Pzlwned Omi. 7, N19.

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on TED sra'rn'l s PATE' omnes. lHENRY A.' wise woon, lor new :rome N. Y., AssIeNoR 'ro woon Nnwsrnrnn MACHINERY conrom'rron, or New You, N. Y., A conronarmn or vm- FOLDING-normas.

substance for application seria1'1ro.,773,919,a1a :une 16,1913. This appncation mea January :'11, 1919. Serial No. 274,219.

To all whom. t may. concern Be it known that LfHENRY A. WISE Voon, g'itudinal fiutin a citizen of theUnited States, residing at New York, in the county of New York and State of New' York, have invented new, and

useful,Folding-Rollers, of which' the following is a specification.

This case is substituted for my applicationl 4toprovide means whereby the folding rolls of a rotary folding mechanism. can grip `the sheet to be folded without pressing. it between two metallic surfaces, whereby the smearing of the interior sheets will be avoided and yet the rolls can secure a good grip on the sheets. The invention involves improvements in the construction of .the rolls.

Reference is to be had tothe accompanying drawings in which;

Figure 1 is an end view of a foldingcylin` der with folding rolls therefor constructed in accordance with this invention;

Fig. 2 is a plan of one of these rolls;

Fig. 3 is a sectional View of a portion of the rolls on the line 3 3 of Fig. 1 on enlarged scale; and

Fig. 4 is a transverse sectional view of the same.

As is well known, folding rolls usually employed cause a great deal of sm-ut because they have to fbite hard on a sheet t o hold it and thus they press its freshly inked 1nter1or surfaces together. This' frequently causes one sheet to smear the other. This has been a point of considerable difficultybecause the sheets must be given a good grip to prevent their slipping haci( and to cause them to bc delivered rgciact. 'time with the mechanism. Yet if the sheets are pressed hard at any point except at the margins the smearing above mentioned is likely to occur.

This invention is shown as applied in connection with a folding cylinder 10 having the usual folding blade 11. In order to overcome the above'mentioned difficulties, the two

folding rollers

12 and 13 are provided with surface flutings.

In the form shown the surfacesof the 'two

rollers

12 and 13 are' provided with lonutings 15. of rows of teeth 16, the outer surfacesl of which lie in a cylindrical surface. two rolls are so set up that the projections or teeth of one register with the indentations f Patented oet-.- 7, 1919:

14 and. :circumferential l. Thisresults'm the formation or depressions of the'other, as indicate/din Figs. 1, 3 and 4:. In this wayit will be seen that-the sheet isalways supported between two points or lines on one side and.

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engaged substantially midway between'them by a tooth'or projection on the other side. Thos the `sheet is gripped with suflicieiit- -firmuess to cause it 'to be passed throu h the rolls accurately and properly and to'l def' posited in thedelivery belts (not shown).`

squarely and accurately. Yet at no oint isV the sheet gripped between two meta lic surfares. 4Consequently the offset and smut are substantially avoided.

'Although I have illustrated and described only'one form ofthe invention,.I am aware'. of the fact that xriodlficationscan be made A therein andthat' the projections and depressions can be arranged in man forms on the surfaces of the rolls 'without eparting from the scope 'of the invention as expressed in the claims.

Therefore, I. do not wish to be limtediin 8o these respects, but what I do claim is 1. VThe combination in a-foldin' mechanism, of afpair of folding rolls having their cylindrical surfaces provided -wi'th longitudinal and circumferential grooves, thus providing rows of square fiat-topped projee.

tions, said rolls being arranged to have the projections 4of each one register with grooves of the other. 2. In a folding mechanism, the combmation of a pair of folding rolls having their cylindrical surfaces provided with crossing grooves, whereby a plurality of' rows of flattopped projections are provided, said rolls being arranged so that the pro'yeetmns of each one register with. the grooves of -the` otl ier.

affixed my signature.

In testimony whereof I have 'hereunto