US1477024A - Collecting mechanism for printed sheets - Google Patents

Description

Dec. 11, 1923.

P. AITCHISON COLLECTING MECHANISM FOR PRINTED SHEETS Filed Aug. 10, 1921 In ven tor:

reunite Dec. 11,1923.

UNITED STATES PETEBZAITOHISON, OF NEW ROCHELLE, NEW YORK,- ASSIGNOB TO AMERICA-ll I! PATENT OFFICE.

' /NOTECOHPANY, NEW YORK, Ni Y., A CORPORATION OF NEW YORK.

COLLECTING macnamsmron rnm'rnn snnn'rs.

Application fled'August 10, 1921. Serial 10.401449.

To all whomez't may concern:

Be it known that I, PETER AITCHISON, a subject of the King of the United Kingdom of Great Britain and Ireland, residing at "-8 New Rochelle, in the county ofWestchejster and State of New York, "have invented certain new and useful Improvementsin Collecting Mechanisms for Printed Sheets, of i which the following isa specification, refer- 10 ence being had therein to theaccompanying drawings, which form a part thereof. .My invention relates to collecting mechanisms for printed sheets, and more articularly to a novel mechanism adapte to unwind a roll of continuous strip or web having wound therein dampened printed sheets and accumulating the sheets in a pile or stack soras to be in convenient form forthe subsequent rapid feeding thereof to a printing press in making succeeding impressions,

or transfer to thefinishing room for trimm'ing, numbering or for other purposes-incidental to the completion of a printing job.

I have heretofore devised a process of tre ting printed dampened sheets which C011, tem hilates the winding of such'sheets in a I continuous stri or web of paper or other similar materia coated -or impregnated with cerasine, 'apan, parafiin, or other waxes or :0 material aving no afi'mity for the ink used in makin an impression and substantially 'impermea le to air and moisture, so as to avoid the necessity for redampening the sheets for succeeding impressions and preas serving the finish of the paper as well aspreventing offsetting upon the strip or web. *Heretofore I have experienced difliculty in collecting the sheets-thus wound in the strip or web, with sufiicient. rapidity and 40 convenience to" facilitate their subsequent handling either in feeding them to a press upon the making of another imprint, or for the finishing room, it havin heretofore been necessaryto remove the printed sheets from 46 the stri or web and pile or stack them by a hand. uch method of removal directfrom 'the roll while feeding toa'press, interferes with the routine handling ofsuch sheets whereby printed sheets will be delive diand thus impairs the efiiciency of the feeder. Furthermore, the feeder is ordinarily positioned well above the floor of the press room,

and the organization of a press is such that the roll cannot be ositioned convenient to the feeder so as to eliver the sheets one at a time with a rapidity commensurate with the feeding operation.

With these conditions in mind, I have deremoved from the roll of strip or web, and

-thus collected in a pile or stack sufficiently rapidly to avoid an exposure to the air for an interval which will tend to dry the paper appreciably, and without having the hand 0 an operator, contact with each sheet.

By utilizing the strip or web itself to con-- vey the sheets directly to the collecting shelf, it is merely necessary to provide strippers which will separate the printed sheets from said stri or Web to whidh the inked surface of t e paper has a tendency to adhere. This means of transferring the printed sheet from the strip or web to the roll avoid the necessity for using delivery tapes and preeludes possible wrinkling or distortion of the aper sheets.

T e manner of unwinding and rewinding the stri or web not only results in the deco lecting of'the sheets, but at the same time forms a reelv of said strip or web after removal of the sheets. so that it may be removed from the collecting 'machme and mounted directly in a press preparatory to receivingfreshly printed sheets.-

The invention consists primarily in a collecting mechanism for rinted sheets embodying therein a collecing shelf, a guide roller adjacent and'abov'e said shelf about which a strip or web is adapted to as rectly from said strip or web to said shelf,

- bearings fgr a roll of continuous strip or web having rinted sheets wound therein, and a rewin .reel adapted to receive said strip or web after the printed sheets have passed therefrom and been stacked or piled upon the shelf; and in such othernovel features of construction and combination of parts as are hereinafter set forth and described, and more particularly pointed out.

in the, claims hereto appended.

Referring to the drawings,

- Fig. 1 is a side elevation of amechanismone end of an inclined collecting or receiving shelf 12 provided with the usualstop flange 13. The frame of the machine 10* is free ofobstructions between the side frames.

which are propferly positioned and held by means of suita le stay rods 14. f

Mounted between suitable bearing brack- 'ets '15 and 16 carried by the brackets 11 rebeari spectively, is a uide roller 17 of small radius positioned 'between the collecting or receivin shelf, 12 and suitable bearings 18 on the ame 10 fora reel 19 containing a roll of continuous strip or web having wound therein sheets of dampened printed paper20 asshown upon the shelf 12. The roller 17 is preferably positioned above the bearings 18 so as to avoid too great an inclin ion of the strip or web between said ro er and'the roll upon the reel 19' with changes in the diameter of said roll with the progressive actuation of the machine. The reel 119 is removably mounted in the 8. Garried by the frame 10 in any convenient position are open bearings 21 adapted to receive a rewind reel 22, these bearings 21 being sitioned upon the same side of in somewhat a matter of choice and determ1ned by the guiding mechanism for the strip or weh. Preferably the bearings 21 .are located at the endjof-the machine" opposite to that where the shelf 12 is located, suitable guide. rollers 23, 24 and 25- being "arranged upon a frame 26 intermediate the bearings 18 and 21.

' 'The said guide rollers 23 and 25 are arranged-upon a horizontal plane above the axis of the bearings 18, theroller 24 being lan view. of a fragmentary like parts in both the" roller17=as the bearing-'18 their location be'-- arrangement of rollers will relieve the strip or web from stresses which would tend to tearsame or destroy the finish thereof, and

also will compensate in a measure for the constant variance in the inclination of the strip or web due to the change in diameters of the rolls upon the reels 19 and 22.

Mounted'upon brackets 27 upon op ite sides of the machine adjacent and low the guide roller 17 are a uence of stripper fingers 28, the ends ofwhlch terminate adjacent, or bear lightly upon, thestrip or web passing about said guide roller. The space between the brackets 27 is free of o structions aside from said stripper fingers so as to provide clearance for the passage of the sheets 20 along said fingers until they are discharged upon the shelf 12.

Carried by the brackets 29 are slotted" guides 30 extendin upwardly above'said rackets respective y, mounted in which guides is a weighted roller 31 adapted to continuously bear upon the surface of the rollof strip or web upon the reel 22 while 5 permitting the. gradual increase in the diameter of this roll. Leading from adjacent the top of the slot in the guides 30 is an inclined offset slot 32 adapted to receive the arbors of the roll 31 and to hold saidroll in a position where it will not interefere with the free mounting of the reel in, or the removal of the filledroll from, the machine.

The-arrangement of .the guide rollers 17 and 23, above the bearings 18 andupon opposite sides thereof, will rmit the utilization of the lower circum erence of the roll upon the reel 19 as a guide for the or web in passing through the machine, and cause the ing the ro to assist in transmitting rota as l movement to said roll and reel, an

more .fullyappearhereinafter, will serve as portion of the strip or web engaga keeper to retain the printed sheets upon the strip or web until they reach the delivery stri pers 28. v

T e machine is operated by means of a hand crank applied to the end of the reel 22, or if desire any desired means for mechanically rptating said reel ma be subing mastituted, the'actuating means not terial to the invention. The necessity for the presence of, an attendant and the avoidance of excessively highspeeds makethe method of application'of power to the machine a matter of indifference since it may be hand-operated without an ntial loss of capacity; The construction of the collecting or receiving shelf '12 is immaterial to-the resent invention, and if desired any other esimd shelf maybe substituted for that shown.

The operation of the herein mechanism is substantially as follows positione above therollers 23 and 25. This The reel 19 containinga roll of continuous l livery mechanism, and mounted in the bearings 18. The end of the web is then passed over the guide roller 17, brought down-;

wardly'between the brackets and 16 and passed under the lower periphery of the roll 10 upon the reel 19, and about the guide rollers- 23 24 and 25 and fixed to the reel 22.

- n this manner, the reach 33 of the continuous strip or web which is" drawn from the top of the roll-upon the reel 19, serves to 1,5 convey the printed sheets to the frippers 28. The sheets,'by reason of their adhesion to the strip, will lay upon the outer surface of the reach 33 and thus be brought into the operative range of the grippers or pass 20 about the roller 17 in a relation thereto which will permit the removal of the said sheets from the strip or web. By having the roller 17 of a short radius,

- there will be a sharp bend of the strip or web adjacent the strippers 28'so that there will be a tendency of the edge, of the sheet to separate from or spring away from the strip or' web at this point, and thus avoid the necessity for the strippers bearing, with an sub- Since the roll u on the reel 22' is designed to be removed b0 ily therefrom and mountedin a printing machine, it is desirable'to have this roll compactly wound, which result is secured by means of thefloatingweighted roller 31 bearin constantly there movement by. the

l'on, guided in itsoutwar slotted guides 30. 7

.While there 'will be no ofi'setting of' ink from the printed sheets to the treated stri or web, and while theentire sheet on botii sides is dampened, which dam ness permeates the body of the sheet su ciently to make it limp when the sheet is properly mellowed, nevertheless experience has demonstrated that the freshly inked surface of the printed sheet will adhere to the strip or web while the op osite surfacethereof will not so adhere. t is this condition which makes possible the construction of machine herein described.

As the sheets arecoilected in a pile or stack upon. the shelf\12,.they will fallper- 1 fectly flat, the dampness inv the sheets while 1 in the pile servin to preserve the mellow condition of the s eet so that thereafter no .redamping is required by reason of the exposure of the sheetsto the air during and after their removal from the roll.

so stantial pressure, upon-the strip or we and is 8 9 P c to .k p the T0115 even ermit them to be spaced slightl' away strip there rom so as to avoid 'scrapingof t e sur- J face of the strip or web thereby.

, The under reach 34- of the strip or web 36 with theactuation of. the machine will,

through its engagement with the under circumference of-the roll upon the reel 19, have v I a tendency to rotate the reel and thus re- Shown n the wi g 1 g pp ent lieve the strip or web in art of the. longituthat such may be v r ed wlthollt w 40 dinal stresses particular y at; the roller 17 from 1: p scope {lithe PWQDUOII- At the same time it wiYI prevent .overrunning H mg descrlbed h mventwnywhm I of said reel 19 and will check any tendency @131!!! as n d desll'e t0 (hive Pmmcted of the printed sheets to separate therefrom, and thus cause them to ollow the upper ceeding impression so asto' utilize the strip drying out of said-sheets. e

t is not m intention to limit the mven-v hy Letters Patent, is z' 1. A collecting mechanism for printed or web with the printed sheets therein intact until they are required for a sucor-web asv-a conditioning medium to prevent tion to the precise details of-construction 4'5- reach 33 and be properly delivered to the shelf 12.

After leaving the roll upon the rs e119,

the reach 34 is passed about the guide rollers 23, 24 and 25 and wound upon the rewind 0 reel 22 to which the act-hating power for the A i s p v As iheretofore stated, the positioning of p e manner'delied.

the rollers 17, '251in't I scribed, will limit the angle-ofinclination of a the reach '33 between the rolL'a'nd the guide :r'ollerl'l, and the reach upon the rewind reel and the guide an" 25'.

' likehhood ofthe cracking of'the" surface of the strip o'r web with a, resultaiitweak'ening thereo f'aiid reduction a 34'bet'ween the roll.

sheets embodyin therein a collecting shelf,-

a'guide roller a a'ce'nt and-above-said shelf about which a strip or. web is adapted. to pass, whereby printed sheets will be delivered directly from said strip or web to; said shelf, bearings for a roll of continuous strip 9r webhavingprinted sheets wound there- -m,."-a rewind reel adapted.. to receive said or web after the. printed sheets have passed therefrom and been stacked'or piled upon the shelf, and-meansintermediate said hearings and said rewind reel. whereby the lower reach of the stri or .web, in its passage: through the machine, .-is caused to an- {g ge the'undersuriaee of th 'roll ofeonti nuous sgip; 4

- 2. sheets therein a; eollect' shelf a guide rol-ler t jacent and above sudshelt about which a or webia adaptd to for printed" therefrom and been stacked or piled upon the shelf, and a guide roller mechanism posisheets embodying therein a collectin mediate same andisaid'de'iivery chute, a rea in,

intermediate same and sai a rewind reel adapted to receive said strip tioned above the bearings for said roll of continuous strip or web and intermediate same and said rewind reel, whereby said strip or web, after delivery of the printed sheet therefrom, will be caused to bear upon the lower portion of the strip or .web upon said roll.

3. A collecting mechanism for printed shelf, a guide roller adjacent and above sa d shelf about which a strip or web is adapted to whereby printed sheets will be delivered directly from said strip or web to said shelf, bearings for a roll of continuous strip or web having printed sheets woundtherein, stripper fingers operative upon said strip or web adjacent said guide roller and interwind reel adapted to receive said strip or web after the printed sheets have passed therefrom and been stacked or piled upon the shelf and means intermediate said bearings and said'rewind reel whereb the lower reach of the strip or web, .in its passage through'the machine, is caused to engage the under-surface of theroll of continuous strip.

4.-A- collecting mechanism for printed sheets embodying therein a collecting shelf, a guide roller. adjacent and above said shelf about which a strip or web is adapted to pass, whereby printed sheets will be .deiivereildirectly from said strip or web to said shlf, bearings for a roll of continuous strip or whb having printed sheets wound therestripper fingers operative upon said strip or web adjacent said (guide roller and delivery chute,

or web after the prlnted sheets have passed same .and said rewind reel, whereby saiddelivery of the printed 1 ered directly shelf, bearm strip .or web therefrom and been stacked or piled upon the shelf, and a guide roller mechanism posiroll of tioned above the bearings for said strip or web and intermediate continuous strip .or web, after sheet therefrom',wil1 be caused to bear upon the lower .portionof the strip or web 'upon said roll. 1

. 5. A collecting mechanism for printed sheets embodyin therein in collecting shelf,

a guide roller a jacant and above said shelf about which a stripor'web is adapted to pass, whereby printedshee'ts will be delivfrom said strip or web to said fora rol1 of continuous aving printed sheets wound bearlngs of said roll of continuous strip or web and intermediate same and said rewind reel, whereby said strip or web, after delivcry of a printed sheet therefrom, will be caused to bear upon the lower portion of said strip or web upon said roll, and sharp bends in the strip or web adjacent said guide rollers, will be avoided.

6. A collecting mechanism for printed sheets embodying therein a collectin shelf, a guide roller adjacent and above said shelf about which a strip or web is adapted to pass, whereby printed sheets will be delivered directly from said strip or web to said shelf, bearings for a roll'of continuous strip or web having printed sheets wound therein, bearing brackets adapted to receive a rewind reel, slotted guides extending upwardly above said brackets respectively, a weighted roller slidably mounted in said guides, whereby the strip or web will be compactly rewound upon said reel and means intermediate said'bearings and said rewind reel whereby the lower reach of the strip or web, in its passage through the machine, is caused to engage the undersurface of the roll of continuous strip. 7

7. A collecting mechanism for printed sheets embodyin therein a collectin shelf, a guide roller a jacent and above said shelf about which a strip or web is adapted to pass, whereby printed sheets will be delivered directly from said strip or web to said shelf, bearings for a roll of continuous strip or web having printed sheets wound therebearing brackets ada ted to receive a rewind reel, slotted gui es extending upwardly above said brackets rcspectively, a

weighted roller slidably mounted in said guides, whereby the strip or web will be compactly rewound upon said reel, and a guide roller mechanism bearings for said roll 0 continuous strip or web and intermediate same and said rewind reel, whereby said strip or web, after delivery of the pri ted sheet therefrom, will be caused to bear upon the lower portion of the strip or web uponsaid roll. I

8. A collecting mechanism for printed sheets embodying therein a collectirfi shelf, a ide roller of smalldiameter jaoent an above said shelf about which a strip or web is adapted topless with a sharp bend, whereby printed eats will be delivered directly from said stri bearings for a roll 0 web having printed sheets wound therein, a rewind ree adapted to receive said strip or web after the printed sheets have pamed or web to said mu,

guide rollers positioned above the sitioned above thecontinuous strip or therefrom and been stacked or piled upon my signature, in the presence of two subthe shelf and means intermediate said bearscribing witnesses, this 3rd day of August, ings and said rewind reel whereby the lower 1921.. reach of the strip or web, in its passage PETER AITCHISON.

Witnesses:

' A. C. CARY, 3rd,

5 through the machlne, is caused to engage the undersurface of the roll of continuous strip. In witness whereof Ihave hereunto afiixed M. Wm];

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