US1159011A - Paper-guide for printing-presses. - Google Patents

Description

M- 1. GARLICK.

PAPER GUIDE FOR PRINTING PRESSES.

1 APPLICATION FILED MAILZ. 1914.

1,159,01 l Patented NOV. '2, 1915.

mm MLM PAPER-suini: ron rjniNzrINGi-innssns.

nissen.

Specification of Letters Ijatent.

MARK-J. GABLICK, or DALL-ns, TEXAS;

i Patented Nov.- 2,- 1915.v

Appiit'aiion inea March a, i914: Aserial Nofsarssi;

To all whom t may concern.'

Beit known that I, MARKA'ljGARnICK, av

citizen ofthe United States of`America,'re siding at Dallas, in the countyv of Dallas and State of Texas, have invented certain new and useful Improvements in Paper-v Guides for Printing-Presses, and I dohereby declare the followinglto be a full, clear, and exact descriptionof thelinvention, such as will enable others-skilled' in the art to which it appertains to make and use the same;` l rllhis invention relates to improvements in paper guides for printingpresses, and more f particularly to such guides for stop' cylinder printing presses, in which the cylinder is intermittently rotated 'and remains' sta'- tionary during a part of the operationV of the machine. at which time the paper is fed to proper place relative to the cylinder, and the object of thisinvention is to provide guides which will properly locate the paper irrespective of the position of the same; to provide such guides of a simple substantial form, and to provide the device with various novel features as hereinafter more fully described and particularly pointed out in the claim.

'lt has been customary in printing presses to provide guides against which the edge j of thepaper is thrust to adjust it to proper position, and these guides have heretofore been attached to the frame of the machine. Consequently in stop cylinder machines, it has been necessary to provide means for stopping the cylinder accurately at a certain position relative to the guides so that each successive sheet of paper fed to the cylinder and adjusted by means of the guides, would be clamped upon the cylinder in exactly the same position. This accurate adjustment is especially required in connection with two color work, or such printing as requires more than one impression upon the same sheet of paper, where it is necessary to have the paper adjusted on the cylinder each time the impression is made, with extreme accuracy so that the succeeding impression will register exactly with the preceding one.

It has been found very difiicult to construct mechanism which will, during the rapid operation of the machine, stop the cylinder each time in exactly the proper position relative to the guides, and consequently this type of a machine has heretofore been objectionable.

i5 This.l invention is" intendedv to provide a paperv Vgui-de Afor stop 1 cylinder presses', which willlobviate the objectionable "features above mentioned, and it consistsessentiallyin providing-jstopsfixed to thei'cylind'er and mov- 'able therewith, so that in whatever position the lcylinder -stops, the'l paper fed to the guides thereon will always be accurately'adjusted relative to the cylinder.

f The device :also embodies certain spring v tongues fixed! to the frame of the machine, p

"whichv guide the paper to thestops on the cylinder-,fand which also engage the paper after .the cylinder commences its rotation,

and-press the paper-firmly thereto, stretching Ait smoothly 'over the surface thereof, and `the device is vprovided with Avarious other novel `features-of construction `and arrangement, as. will? more fully appear byreference :to thev accompanying drawings,` in

which 2+ i Y -Figure 1 is a perspective view of aportion of a printing press, showing the cylinder and paper guides embodying this invention applied inoperative position thereto; Fig. 2

is an enlarged transverse section of a portion of the cylinder illustrating details of the invention, and showing :the dierent parts-'in the position they assume .when the cylinder is 1n stopped position; and Fig. 3

shows the same'parts asFig. 2 after the cylinder has commenced its rotation.

the'figuresV 1 y l represents the cylinder of Ia printing press of the stop cylinder type, the ysaid cylinderbeingjournaled in suitable bearings 2 in the frame and intermittently rotated by ordinary means (not shown). This cylinder is adapted to remain idle during that portion of the operation of the machine in Like numbersrefer tolike parts in Vall of which the bed carrying the type moves on its return or idle stroke, and it is during this. time that the paper 3 is fed to the cylinder from the feeding board 4. At the beginning ofthe return or printing stroke of the bed, grippers 5 mounted on the cylinder, are released and permitted to engage the edge of the paper clamping it to thecylinder, which immediately begins to rotate and carries the paper upon its surface into conl tact with the type on the bed.- These parts of the machine are all old and well-known and may be of any ordinary form.V

To adjust the paper tothe proper position on the cylinder, paper guides are provthe stops to be adjusted relative to the p eriphery of the cylinder whereby a more accurate adjustmentrof the paper may be obtained. The guides also comprise the guiding spring tongues 9, which are attachedto a rod l0 extending parallel with the cylinder and detachably fixed to the frame of the machine. These spring tongues normally press against the surface of the cylinder, but are raised away from the said surface by the stops G as they pass under the tongues, and

it is during that portion of the revolution of the cylinder in which the stops engage the tongues and raise them from Ythe cylinder, that the said cylinder is stopped and remains idle. When the cylinder isidle, and the tongues 9 raised from the surface thereof, the paper 3 is fed to the cylinder, being guided by the tongues 9 and adjusted to the proper position by engagement with the stop 6. The grippers 5 are neXt released and thecylinder commences to rotate, carrying the paper with it, and asthe stops 6 pass from beneath the spring tongues 9, the latter are released and allowed to engage the paper as shown in F ig. 3, pressing it firmly against the surface of the cylinder and stretching it evenly thereon so that it will not be wrinkled when it is engaged by the type. The rod l0, on which the tongues 9 are supported, is detachably connected to the frame of the machine by having its respective ends inserted in openings in the said frame and preferably retained therein by means of set screws 11. The arc-shaped fingers l2, which partially surround the cylinder to insure the retention of the paper in contact therewith until it is engaged by the ience in making the machine ready for operation.

lt will be understood that the use of this device is not necessarily limited to the so kcalled stop cylinder presses, but may be used on other cylinder presses as well, such for instance as a proof press where the cylinder is rotated manually and may be stopped at will at any point of its rotation.

lhat I claim is In a printing press, a cylinder having a longitudinal recess in its periphery, a shaft located in said recess, members mounted on said shaft, stops mounted on said shaft alongside said members and extending out ward beyond the periphery of the cylinder' and having lateral alining projections intermediate their ends which extend beyond the edges of said members and slightly curved slots which extend across the stops and into said lateral projections, and screws secured to said members and extending through the slots of the respective stops to adjust the stops about the axis of the shaft.

In testimony whereof aflix my signature in presence of two witnesses.-

MARK J. GARLCK.

Witnesses GEO. D. HALsnLL, J. J DioKnY.

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

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