US1078657A - Paper-guide for presses. - Google Patents

Description

L. BAKKE.

PAPER G'UIDE FOR PRESSES.

APPLIOATION FILED 11111.15, 1912. BENBWED SEPT. 5, 1913.

1,078,657. Patented Nov. 18, 1913.

COLUMBIA PLANuaRAPl-I co.. WASHINGTON, D. C,

drmifran srnrns PATENT ortica..

nnoronn BAKKE, or cHICAGo, ILgniNoisl.`

VPersn-GUIDE Fon PRESSES.

Specification of Letters Patent.

Patented Nov. A18, 11913.

Application filed aanuaryis, `1912, serial No. 671,284. Renewed :september 5, 11913. serialno. 788,322.

To @ZZ whom t may concern.'

Be it known` that I, LEOPOLD BAKKE, a citizen of the United States, and a resident of Chicago, in the county o-f Cook and State ofIllinois, have invented certain new and useful Improvements in Paper-Guides for Presses, of which the following is -a full, clear, and exact specication.

My invention is "concerned with stop guides for presses adapted to control the feeding of the paper to be printed 'to the presses so accurately that the exact registration demanded in two-color and similar work can be readily and'easilysecured. In

Vdevices of this type which have been used prior to my invention, the spring' guides lated and adjusted which directed 'the paper to the sheet-stop plates always stood at the same `distance above theunder duide' strips, and this distance must be sutcient to accommodate the thick and heavy paper or bristol board that is sometimes printed. If thin paper was to be printed, the edges, not being held down close to the under guides, might be curved or curled up so that the gripper fingers in swinging down on the edges of the sheets would strike the curled-up edges standing above the proper level and knock the sheet back a little, with the result that the 4exact registration required for two`col`or and similar work was no-t necessarily secured. To obviate this diiliculty, by my invention I provide means by which the distance of the spring `guides above thekunder guides at the sheet-stop plates may be accurately regufor any thicknesses of paper, so that no matter how thin the paper, it will not have any 'space to curl up at the edges and possibly be knocked back out of exact registration by the gripper fingers.

Another' feature of my invention is. a novel construction whereby I am enabled to produce ya stop plate that shall have a vastly greater life than tho-se heretofore used,` a-nd to 'this end, instead yof making astop plate always presenting the same stop surface to the edge of the sheet, I have made one in which four different stop surfaces can be successively vpresented by means of a simple adjustmen.

To 1illustrate 'my invention, I annex `hereto `a sheet of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which,-

Figure 1 is a fragmentary view of a porporting plate,

tio-n of a press having my invention applied thereto; Fig. 2 is aview on a larger scale, inV section on the line A-A of Fig. 3, through the stop plate and directly associated members of a front guide embodying my invention; Fig. 3 is a transverse section on the line B-B of Fig. 2; Fig. t is a similar view in section on the line G-fC of Fig;`

2;; Fig. 5 i-s a plan view insection on 'the line D-fDof Fig. 2;

view.

In Fig. 1, 10 indicates th-e'framework -of a the yunder guides on the surface of saidV board, with which the front guide shown cooperates.A The supporting sleeves 14, each` of which has a supporting rod'l, which is longitudinally adjustable therein by any de'- sired means (such, for instance, as is shown in my Patent No. 1,011,009, dated December 5, V1911) to adjust the position :of `the'stop plates,- are secu-red on the rock shaft 16, which carries the vcrank arm 17 'connected by the link 18 with thev customary-cam mechanism by which'the Afront guidesa-re thrown up at the proper time to allow the paper to be 'carried on to the cylinder and down at the proper time to serve as the sto-p when the sheets are fed into posit-ion.

The mechanism ythus far described may be of any desired construction, and forms no part of my present invention.

VThe outer end of the supporting arm 15 is rigidly secured in the block 19, which is and Fig; 6 isa top plan riveted to the rear of the vert-ical supporting plate 20 which I preferably employ. This vertical supporting plate 20 is preferably provided with the reduced and tu-rned over upper end 21, which has the slot 22 therein, through which passes the Unthreaded portion ofthe screw 23, which is preferably provided-with the milled head 24C 'by which itis manipulated. A shoulder 25 is provided, together with a collar 26 secured on the body of the screw beneath the end 20 of the supso that the screw is free to turn in said plate without having any :movement relative thereto other than that Yof rotation. The two spring guides 27 arerof a customary construction, but in my preferred Y form ext-end substantially parallel .to the under guide 13, Va considerable distance in advance of the stop plate with which they are associated, land are preferably connected lil@- the screwand ating with the supporting plate are suiii-VY ,j harder-than yis l Y .l5

,edges by the projections Y by the shallower projection 34, so that the projections to the commonbody portion l28, which 'is slotted at 29 to embrace the screw, and has the lends 30 adjoining 'the' slot 29 turned down, as shown inFig. 2, sufficiently so that the turned down' end copercient l to hold the spring guides in position. While I might, so far as the main object of my invention is concerned, form thef'stop Vsurface on `the supporting plate 20, I'pref-y erably employ an entirely distinct and separate stop plate 31, which is preferably composed of some hard or hardened met-al, much ldesirable to use for the supporting plate 20. This plate 31 isl ofunform ythickness throughout, and onboth its top'and bottom edges Visfprovided with av pair of recesses 32 bounded on theirY outer 33, and/separated 33` can cooperate withthe edges of the under guides 13 and accurately position the stop plate. 31 relative to said under 34, as seen in Figs. 3

33 extend slightly below and embrace the same.k The plate 31 is t which always press up, ,the same distance above i the verticalf distance between f screws 35 are employed,

A by reversing this To obviate this diihculty,

1 turned-over edges yprovided with a couple of aperturesthrough' which the screws 35 may be passed and threadedinto the supporting plate 20, soy that stopplate 31, top and bottom, and forward and back, I have no less than four distinct surfaces vwhich-mayV be successively employed,.andvas the edges of the-.paper being printed eventually wear the stop surfaces sufficiently so that the adjustment becomes inaccurate, it adds greatly to the life of the guide to provide these four contact surfaces, and, as aforesaid, the plate 31 may ybe made of much harder material than is convenient to use in the construction of the supporting plate 20L l j As I havel Stated in the opening of` the specification, with the construction thus far described, the ends of the spring guides 20, would always be at thev under guides 13; If paper ofia thickness substantially equal to under guides 13V and the bottom of the spring guides 27 at'the stop plate were always employed, this construction would be entirely satisfactory; but where very thin paper is fused, it is possible Vfor the edges of the paper to curve or curl up adjacent ythe spring guides 27 and at the point where the gripper fingers contact with the paper, so that said gripper fingers willfllrnocl the paper back. I employ thev ad- -which preferablyl has ,the 37 'embracing Athe edges of the plates 2O and31, so` as to be guided thereon iii its Vvertical movement; Where the justing plate 36,

the top` of the rvance of` the stop plate, a

the slots 38 areA scr`ews,'r"and I preferably form' thetshallow lrecesses 39 ont-he under surface to engage the ends of-thespring guides and prevent their lateral displacement, At the upper end of'this adjusting plate, VI form the' turned over endet), through whichthe screw 23 is threaded, so that by A i screw theadjustingjplate ,may be raised orV turning the 'aforesaid lowered andthe ends of the spring guides '27 be adjusted very near tothe upper surfaceof the under guides '13 for correspondingly thin paper, or adjusted some 1distance therefrom to permitV the useof heavy-paper or bristol board. VWhenV the plate 36 has been moved to the" exact adj ust-mentV desired Y jby turning theV screw 23, thelock nutr'll is the turned-over end'f f screwed down against l0 so as to lock the parts securely inthe desired position-0f adjust-ment.

VhileI have vshown and'described in- A. ventionas embodied'specifically in a front f guide, it may. alsobe used in side'guid'es, as will be seen 'fromf .my-:application No.

pect to have issued simultaneously h'erewith. Vhile I have shown and described my iiivention in the Vform whichy I at present consider best adapted to carry out its purposes, it willlbe understoodthat it'iscapable of modifications, and that I do notvdesire'to be limitedin the interpretation of the following claims except: as may benecessitated by thefstateI of the prior art. l

and desire to Ysei WhatI claim as new,

the United, States,

cure by e ters Patent of is: j Y v ,.V-

Y i LpIn ardevice 'of the class described, the combination with a -sheet-stop plate adapted 'loo to be moved intoand out ofengagement v with an underY guide or surface, Vof a springY guide secured'at V one endrrelative to said stop plate and having the'other end movablerelatively fthereto to and from the under guidefand extending substantially par- Y Y allel thereto for a considerable distance in advance of the stop plate,l and means'for adjusting the exact distancel the underfsurface o-f the spring guide shall be above the upy per surface of the under guide at apoint di- -1 rectly below the bottom` of the'stop plate, said means engaging the spring guide at said point.j i

2. In aV deviceof the class described, the

combination with a sheet-stopy plate adapted to be moved into and'outY ofjengagement with an under guide or surface," of a spring guide I stop plate and having the other'end'Y movable relatively thereto guide and extending substantially parallel thereto for a considerable distance4 in'wadmember movable lto and from the bottom of the stop plate and adapted to'engage the upper spring guide immediately adjacentsaid botsecuredwat one end relative to said Y to and from the under surface of the "1 isa tom, Vand means for moving said member and securing it in any desired position of adjustment. Y

3. in a device of the class described, the

y combination With a sheet-stop plate adapted Vto be moved into and out of engagement with` an under guldeor surface,.of'a spring ing an a-pertured offset upper end, of a par-V allel adjusting plate adapted to slide vertically thereon and having an offset end, a

screw journaledV to turn in the apertured V0E-Y set end, and threaded through the offset end of the adjusting plate, and a spring guide secured at one end relative to the stopplate member and having the other end movable relatively thereto to and from the under guide and engaged by the bottom of the adj Listing-plate member,

5. in a device of the class described, the combination with a supporting plate, of a stop plate carried thereby, said plates adapted to be moved to bring the under side of the stop plate into and out of engagement with an Vunder guide or surface, of a spring guide secured at one end relative to the supporting plate and having the other end movable relatively thereto to and from the under guide, an adjusting plate sliding on the stop plat-e, a screw journaled in the supe porting plate and threaded through the adjusting plate, and means for locking the sore-iv in any desired position of adjustment.

6. l'n a device of the class described, the

combination With a supporting plate, of U- shaped spring guides secured to the top thereof at one end and passing beneath the ,bottom thereof at the other end, a stop plate having a plurality of edges recessed to cooperate with said spring guide, and means for detachably'securing said stop platoon the supporting plate with any desired one ofthe plurality `of edges coperating With the spring guide. Y

7. In a device of the class described, the combination With a supporting plate, of U- shaped spring guides secured to the top thereof at one end and passing beneath the bottom thereof at the other end, a stop plate of the'saine design on both faces and having a plurality of edges recessed to coperate With said spring guides, and means for detachably securing said stop plate on the supporting plate With either face outward and with any'desired one of the plurality of edges cooperating with the spring guides.

8. In a device of the class described, the Y combination with a supporting plate, of U- shaped spring guides secured to the top thereof at one end and passing beneath the bottom thereof at the other end, a stop plate havingl a plurality of edges recessed to cooperate vvith said spring` guides, means for detachably securing said stop plate on the supporting plate with any desired one of the plurality of edges coperating with the spring guides, an adjusting plate having overhanging edges embracing the supporting and stop plates, and means for vertically inoving said adjusting plate, for the purpose described, and securing it in any desired position of adjustment.

In Witness whereof, l have hereunto set my hand and atliXed my seal, this tenth day of January A. D. 1912.

LEOPOLD BAKKE. [11. s]

Witnesses JOHN HOWARD MCELROY, Lno. J. Dui-irais.

Copies of this patent may be obtained for five cents each, by Washington, D. C.

addressing the Commissioner of Patents,

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