US1077284A - Feed-gage for printing-presses. - Google Patents

Description

s. KUBEL. I FEED GAGE FOR PRINTING PRESSBS. APPLICATION FILED I'IUNE 10,1912.

7,2 4, Patented Nov. 4, 1913.

2 SHEETS-SHEET 1.

s. J.- KUBEL;

FEED GAGE FOR PRINTING PRESSES. 'APPLIGATION FILED JUNE 10,1912. I 1 ()77,'284 Patented Nov. 4, 1913.

2 SHBETBSHEIET 2.

, the printing surface.

STEPHEN J. KUBEL, 0F WASHING EDNy BISEBIGT,QF GOLUMBIA.

FEED-GAGE non rnni'smosrnnssns.

' Specification of Lettiersietent.

rfiatentedhlovad, 1%13.

Application filed June 10, 1912. No. 702,260.

To aZZ whom, it may concern:

Be it known that I, STEPHEN J. KUBEL, a, citizen of the United States, residing in the city of lVashington, District of Columbia have invented ceitain new and useful Im-E provements in Feed-Gages for Printing-i ,Presses; and I do hereby declare thefollow-i ing to be a full, clear, and exac d s ription; of the invention, such as will enable others; skilled in the art to which it. appertains 13 3 make and use the same.

The object of the invention is to providej means for eiiecting and controlling the adjustmentof ifieedgage mechanism for print? ing presses, from .a position usually occupied by the pressman, and therefore remote from the position of the gage mechanism.

in many types of printing presses more particularly the stop cyiinder type,-it is customary to employ gage mechanism to accurately define the position of the sheets of paper to be printed by means of at least.

three adjustable gages, one of which is usually located on the feed board and 'at least two of which are located on, or above the cylinder which carries the paper over In multiple impreslsion printing. such as lithographic color,

work, map printing and the like, absolutely. accurate registry of the successive impressions is essential. and in order to effect such registry, a very careful adjustment of all the teed gages of the press must be made by the operator. It not infrequently occurs that adjustment of the gages must be effectcd from time to time during theprogress of work. but in all cases the gages must be accurately set before a given piece of work is run through the press.

As heretofore constructed, both the side gage usually carried by the feed board and the end gages carried by or adjacent to and in cooperative relation with the cylinder have been constructed so that they may be moved from one place to another on the press to accommodate sheets of diiierent size and have also been capable of adjustmenti-n sz'tu to admit of the port-ions of the gages which engage the paper being accuratelypositioned to bring each and every impression imparted to the paper in exact registry. As"

hcreiforc practiced, the adjustment of the gases was effected by the operator stopping the press, leaving his position and setting the gages manually and tentatively, after 'WhlClLllB returned to his position, started the press and-observed the efiect of the succeed- .ing impression to ascertain the effect of the adjustment. If the first adjustment was not correct, the opera ion had to be repeated nntil an absolutely accurate adjustment was obtained, which would be evidenced by a perfect registry of the superposed impressip nsl n-theprinted sheet.

The object of the present invention is to provide means by which the adjustmentot all of; the gagesmay be effected by the operator from his position at the delivery end of the press while observing the printed sheetsdelivered, without stopping the press,

if theseveral gages are l,ocated outside of the cylinder, and requiring .a mere mo- .mentarystopping of the press it the end gages are located in or on the cylinder, thereby saving considerable timeand avoiding the necessity of running many trial sheets through the press before final and accurate adjustment of the gages is effected, which were difficulties and objections in.- herent in the former mode of adjustment of the gages.

The invention is illustrated in the accompanying drawings, in which,

Figure 1 is a side elevation of a portion of a stop cylinder press embodying the invention. Fig. 2 is an enlarged fragmentary perspective view of the press shown in Fig. 1. Fig. 3 is a fragmentary sectional view illustrating one of the end gages. Fig. .4. is

an enlarged detail view, partly in section.

of one of the side gages. Fig. 5 is a vertical section on line 55 of Fig. 4. Fig. 6 is a section on line 66 of Fig. 4. Fig. 7 is a View corresponding to Fig. 3, showing the invention applied to. an end gage mounted on or in the cylinder. Fig. 8-is an enlarged detail sectional view of the means for op erating the gage shown in Fig. 7.

YVhile the invention is illustrated as ap plied to the standard stop cylinder press,

it will be understood that such illustration,

na-rily employed in a press of this kind to be adjusted to various positions on said feed board according to the size and character of the paper used. The side gage a-may be of any appropriate type, and in the form indicated, comprises a spindle a provided with a threaded section a to the forward one of which is swiveled page plate a by means of a set screw a tapped into the end of the spindle a". In order to hold the gage plate firmly against the surface of the feed board, a spring a is located in a slot in the gage plate and bearing between the lower edge of the slot and the set screw it. The spindle is mounted in a bearing" block a which is adapted to be clamped to the feed board C in any desired position by means of the set screw a the threaded end of which engages one of the tapped holes D in the feed board. The bearing block is provided with a hinged cap a? which carries an adjustable block section a which can be moved up and down in the cap a 'by means of a set screw (1 to regulate the tension between the block section a and the threaded portion a of the spindle a. The hinged cap is held in cooperative relation with the base portion of the block by means of a cam. latch a pivoted to the said lower block section and engaging with a lug a. on the cap section. By releasing the cam latch, the cap section may be swung back and the gage spindle moved to any desired extent in the bearing: a for preliminary and rough adjustments. When the cap section a is located in position, the finer and final adjustment of the gage is effected by turning the spindle a to cause the screw threads thereon to traverse the nut section in the bearing block. The end of the spindle opposite the cage plate is preferably provided with a lx'nurled head or finger piece (2 whiclfadniits of the spindle being turned to adjust the page and also serves-in conjunction with a spring' a secured at one end to the cap a?" and having at its other end a ridge or rib to engage the corrugations in the periphery of the head a to hold the spindle against accidental displacement.

Secured to the end of the spindle a is a section of flexible shafting" a, which in turn is preferably secured to the end of a substantially rigid shaft a mounted in journal brackets a", attached at appropriate points to the press frame, the forward end of said shaft a beinp, journaled in a bracket a lo cated near the delivery end of the press, where the pressman or operator is usually stationed. The end of the shaft a" is provided with a suitable hand wheel a by means of which the shaft may be rotated, thereby rotating the spindle a and adjust in theposition of the gage plate a to any desired extent. The provision of the flexible shaft a not only admits of a ready operation of the gage spindle a as described, but also allows for the adjustment of the side gage a bodily to any desired position on the feed board.

The end gages Z) indicated in Figs. 1, 2 and 3, may be of any standard type or form, and as illustrated may each consist of a screw threaded spindle 6 having" thereon a gage plate 5 provided with a clip spring Z). The spindle is mounted in a bearing block 7)" which is provided with a threaded opening to receive the threads on the spindle 7), said block being secured to the usual cross rock shaft E which is mounted in the side frames of the machine. which rock shaft carries the usual splin clips or tongues and is rocked oroscillated to lift the clips and the gages out of contact with the cylinder when the latter is rotated. The end of the spindle 7) is provided-With a milled head 6 with which 35 cooperates a spring stop 5 to hold the spindle in adjusted position. A- flexible shaft section b is secured to the end of the spindle b and is in turnsecurely attached to a shaft section F)", mounted, similarly to shaft section a in bearing brackets Z2 and "c and is provided with a hand wheel D similar to that on shaft a. The flexible shaft, as will be evident, admits of the gases Z) bein; adjusted longitudinally of the rock shaft E, as may be found necessary for printing sheets of different widths.

Two of the gases Z are illustrated, but it will be understood that a greater number may be employed if found desirable and ncc- 10o essary, and in each case, the individual spindles thereof are connected to an operating hand wheel located at the delivery end of the press; by means of, a sultablc operating shaft 6 and flexible shaft connection 5 As 1105 indicated in the drawings, the respective shafts for adjusting the two end gases Z) are located on opposite sides of the press. but obviously they may be so disposed as to bring all of the shafts on the same side of the press, if desired. In fact. the location of the operatingshafts may be changed to best suit the conditions of operation. or the construction of the press, and it will be understood that the particular location indi .cated is merely by way of example. illustrated in detail in Fin. 3. the end gases 6 are shown coiiperatin'g' with the cylinder while the latter is stopped and ready to receive a sheet of paper from the feed board C, and associated with the page is one of the spring clips I referred to and one EZl'lDDEI finger H mounted upon a shaft G, such as are usually employed in presses of this type.

It will be understood that by turning the individual hand wheels 6, the gage spindles b will be adjusted in the bearing blocks 7) to bring the gage plates Z in any desired position with respectto the edge of the cylinder, and thereby to accurately define the 1130 p, 1,077,2ee

a hand operating device located near the I operating device located near the press 0ppress operators station and transmission era-tors station, shafting including afieximechanism including rotary shafting disposed between said hand operating device crating device and the adjustable gage mem- 5 and'the adjusting screw, whereby the gage ber.

plate may be moved directly by the operator In testimony whereof I .aflix my signaat his itationlto {any gefinite pioirl ltin its ture, in presence of two Witnesses.

' range 0 trave w ie t e' rinte s eets areg being delivered under obsefivation of the op- STEPHEN E 10 erator. v Witnesses:

4. A feed gage for printing presses, com- ARTHUR L. BRYANT, prising an adjustable gage member, a hand CHAS. J. ONEILL.

fiopies of this patent may be ebtained for flve cents each, by addressing the Gommissioner of Patents,

Washington, D. G.

ble shaft section connecting said hand opv15

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