US1038487A - Feed-guide for printing-presses. - Google Patents

Description

W. P. BREWER 8: A. KNOBEL. FEED GUIDE FOR PRINTING PRESSES. APPLICATION FILED'JAN. 9, 1911.

Patented Sept. '10, 1912.

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To all whom may ooncem' Be it known thatwe, Wnmra'n F. Ban and ABRAHAM Known, citizens "of the for Printing-Presses, of which the following i I is a s ecificatiom,

This invention relates to guides for printingpresses, and some 0! the objects of our improvement are, simplicit ofconstructiou and operation, facility an rapidit of adjustment, firmness, permanence o adjustment, to" avoid puncturing or otherwise in printing jur-ing the tym an sheet, to, uickly-attain micrometric a ustment, eas' y and accurately' to feed pa er with rough ed es, strength, and ,dura ility. These and 0t er objects we attain by means of the devices illustrated inin which-- p Figure 1 is a top lan view Fig. 2, a side elevation of the si e guide- Fig. '3, a side fthe accompanying drawings,

el..vation of [a bottom gu-i e, showing the 2B section being? made on the line 'A-B of Fig.

'1; and, Fig; bottom guide.

bail-and the platen partly in section, the

flis arear end View of the Similar reference numbers refer to similar parts throughout the several views of the.

drawings.

The platen, 1, is-of the type used onplaten gresses, such as are-commonly known as platen 1 provided-with bails, 2 and3, for clam ing/a tympan'sheet, 4,. in a manner Well own. v

Inucommon practice it is customary to 'make ready for a job by sticking 'pixis in the tympan sheet to serve as guides a ainst which to feed the paper, 5, and to ho d the paper in proper register to receive the i1h-' pression. The practice oi sticking pins or Other ides into the tympan sheet is objectiona e, because'the ty' 1: sheet usually consists of paper, w ich' is easily torn; so that the ides shift out oil-register, and

when'sh' ed cannot be readjusted inthe lace but must be moved to a fresh.

same placem the tympan sheet; It is very difii cult 'to insert a pin inthe properloca-tion,

with each-guide and lnuch timeis consumedocatedggand therefore, many trials must be made before the guides are finally all ro erly ordon jobbers, and the like. The

. Specification has. Patent, Patented sept. re, 11%. Applitiation fled-January 9, 1911. Serial No. 691,57a-

order to. attaina perfectly smooth tyrn an gsuri'ace, the platen is covered with a 5 eat 'ofpress board, which is quite expensive. iT'ostick plus and other guides into this "press board, spoils the surface, so. that it Zcannot successfully he repaired, and the the guides are somewhat fag ed and hang up on the pins or other 'iies which a narrow surface or. a s arp edge. overcome the. dlficulties just mentioned by.

which 1s not inserted m the tympan sheet no'r attached thereto but is secured by. the

tympan clalnpingbail '2, is provided with a screw for micrometric ad; stment, and resents a smooth rounde against. r

p ovement'- comprises bottom gui es, 6 and ,;-and a side guide, 8. The bottom-guides 6 and: 7 comprisea' guide bar, -9,"-'wh1ch is preferably clip, '10, in

threads, 11, over a considerable length of its ceive an adjusting nut, 12. The rontnose 13,- of the bar 9 is semicircular in horizonta plan and polished, so as to provide a smooth, rounded surface against which the ap'er fnay be fed' with a sliding motion.

over the noses 13. p

The ch "10 ispreferably formedofi sheetnieta of springy temper and formed into invertedxU sha e. I The front an rear transverse square holes, 6, adapted toreceive Bar 9 with a sun slidin' fihso. that ,unlessthe press ee er 1s F W f di g P p t e does" not place the sheets against the guides with too much force, the guide pins are dis-- ftim'e is consumed in readjusting them. In,

.board consc uently cannot be used again.- f Sometimes t e edges of the paper fed, to A resent v ejhave meansof our improved guide, in which we, [have provided a strong, substantial guide,,-

surface to eed surfacacon the four corneraada'ted to reinga parts of the tympan sheet, the I s The set of guides which embed our' imscglliare in cross section, and-a w ich the gu de bar is 'slidably mounted. Bar 9 is "provided with screw.

veri paper with. jagged -edges will slide freely legs, 14 and is, of arch are form was a I V l-lO' 'I-barQdoes'not mtatew ennut. 2 is rotated and the rounded 'rlose 1tt always kept up longer than leg 15 and is adaptedfor inserpaper or the rabbet of the platen l, keep and provided with threads,

' screw or worm.

. sheet 4 or the platen and hail 2, and on its may be adjusted by means of the screw or and causing cei've a nut, l2, the nut vent the nut spinning or moving after it" 14 and horizontal part 17 is greater third a right angle, so that the nose 13 is pitched of n0sel3 against the tympan'sheet yieldbar 9, similar to that of the bottom guides,

right. The horizontal portion, 17, of clip 6 is formed with" a slot, 18, adapted to rebearing against the front and rear walls'o f the slot. The freeend' of the rear leg 15 bears yieldingly against'the rear side of the nut, so as to prehas been adjusted. The'front leg 14 is tion between the tympan sheet 4 or the platen and the clamping bail 2. The leg 14'. is preferably formed with two feet, 19 and 20, which, by bottoming on the tympan' the clip 6 erect. The angle formed by leg downward and presses (Fig. 3) firmly against the tympan sheet andthe paper 5 cannot be fed under the nose. The spring temper of the clip 10 renders the pressure rear endfis curved into a horizontal U shape, to form ,a bearing pocket, '24, for worm A- knurled head, 25, 26, is provided on each end of worm 23. g It will be understood that by turning the worm23 by means of one of the knurled nuts, and shifting part 22, nose 13' is moved in the opposite direction from part 22. The entire guide is first inserted approximately'in proper position, and then worm with micrometric accuracy. Nose 13 (Fig. 2) is bent downward so as to hug the tym an. I

e also contemplate using a bottom guide (6 and 7) with abent nose 13 as a side guide and adjusting it b tapping it 1 leg '14 to slip between the platen and thebail' till the proper adjustment is attained.

Over guides and strippezs' for stripping the impression from the form are provided 'cannot rammed by pms or wires 2'7;' A hole is bored transg versely through bar 9 just behind nose 13, I 7

through -which the' point of the pin is pushed. The shank of the pin is then bent downward and across underneath bar 9 into a transverse slot or channel, 2.8, then. up ward on the opposite side, and finally forward, leaving the head ex- "over the point,

tending over the paper 5. When a longer strlpper is required,.a fresh pin or wire can be quickly inserted.

It will be appreciated'that these guides do not puncture or in any way mar the tympan sheet, and the tympan sheetmay be raised at the upper edge for an underlay and'may be shifted from its original position, without disturbing the guides. The

bottom guides may even bare ved from,

the press and replaced without disturbing the register and the side guide in this case may be quickly reinserted and adjusted. It is obvious also that the guides are firm and out of register while feeding a heavy job.

The simplicity of construction of these 3 l guides renders them easily 'and comparatively cheaply manufactured, and thus they may be sold at aprice, within the reach oil the majority of those-engaged in the art to which they pertain.

Having thus described our in ention, so

pertains may understand that any one skilled in theart to which it v In a guide for printingpresses, "a'clip,

said clip being provided with'a thin. fiat leg adapted to be inserted between the platen and the hail of a printing'press, for

the purpose of securing the guide to the press, said clip being perforated to receive V the guide bar, a threaded guide bar of polygonal cross section adjustably mounted in the perforation of said clip, a threaded adjusting'and fixing element mounted in said clip in operative relation to said bar, said clip beingformed of springy material and at such an angle that when inserted between the tympan and the bail ityieldingly presses the nose of said guide bar upon the tympan, cramps said leg so that it holds tightly between the tympan and the bail,

and cramps-said adjusting andfixing element to prevent its spinning and working.

loose in said clip. p

WILLIAM F. BREWER.- I

ABRAHAM 'KNOBEL. Witnesses: v .MARIA K. BnYNnorH, 7 ANNIEB. KNOB EL.

' Geples at this patent may be obtained for live, cents cash, by addressing the Commissioner :of Patents,

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