US260792A - shedlock - Google Patents

Description

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A. SHEDLOGK. PRINTING PRESS.

N0.260,72, Patentediuly11,;1882.

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AQSHEDLOCKL.

- PRINTING PRESS.

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UNITED STATES PATENT OFFICE.

ALFRED SHEDLOGK,'OF NEW YORK, ASSIGNOR TO GEORGE P. BYRNE, TRUSTEE, OF BROOKLYN, NEW YORK.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 260,792, dated July 11, 1882.

Application filed May 4, 1881.

ters Patentofthe United States No. 168,635,

granted to Griffith and'Byrne, October 11, 1875 and it has for its objectto increase the form capacity without materially adding to the size of the press, and to cause the ink-rollers to properly travel over the form andink-distributing surface. The form-bed, instead of being a plane cut from a cylindrical body, is a plane forming one of the sides of a flattened body, and the ink-rollers are caused to roll'.'

movement by cams formed'on the ends of the. flattened body, and which are driven by means.

of suitable moving connections attached to the gear-wheels running on bearings provided therefor at the ends of the stationary flattened body, said gear-wheels being actuated from the driving-shaft of the press by means of wheels orpinions thereon, all of which will be 'fully understood by reference to the accompanying drawings, forming part of this specification, in which Figure 1, Sheet 1, isa front elevation of my improvements in printing-presses. Fig. 2, Sheet 1, is a side elevation of the same. Fig. 3, Sheet 1,is an end view of the flattened body, showing the ink-rollers in different positions. Fig. 4, Sheet 1, is a sectional view out through one of the ink-roller carriers. Fig. 5, Sheet 2, is an'end elevation of a modificatiompartly in section. Fig. 6, Sheet 2, is a front elevation of the same. Fig. 7, Sheet 2, is acentral section of one of the roller-carriers enlarged; and Fig. 8, Sheet 2, is a plan view of the same.

Referring to Figs. 1, 2, 3, and 4, the flattened (ModeL) body a, which forms the type-bed a and inkdistributing surface a is rigidly secured in position by its end hubs fitting into recesses on the tops of the side frames, 1) b.

The ink=roller carriers, of which there is one at each end of the flattened body for each pair of ink-rollers, consist of the piece 0, provided with the roller d, arranged to bear against the internal face of the flange-cam 0, formed at each end of the body a, and the plate f, provided with a lug which fits into arectangular opening in the piece 0, and two lugs, f,which bear against the sides of the piece 0, leaving the plate f and piece 0 free to move up and down in relation to each other; but they are "prevented from separating laterally by the grooved roller g, which rotates on a stud secured in the lug of the platef, which fits into the rectangular opening in the piece 0.

p The end journals of the ink-rollers h it work in open bearings in the plate f, as shown in Fig. 2, and they are held against the inledistributin g surface a and the faceof the type,

which would be held in a chase slipped down I the inside of the flanges (shown in Fig. 1) at the ends of the type-bed a, by means of a spiral spring, '5, placed between the top of the lug on plate f in the rectangular opening of the piecec and the upper side of said opening,which spring at the same time holds theroller 01 against the internal face of the came; and, referringto Fig.3, it will be seenthat the internal face of the camflange e is so shaped in relation to the outside of the body a that the ink-rollers h h and roller 01, when in contact with their respective bearing-surfaces, maintain the same relative position to one another in Whatever part of the body a they may be, as illustrated by the dotted similar and equal-sized triangles connecting the centers of the three sets of circles, 72. h d, h 7811*, and 71, 71. 01 so that there will be no movement imparted to the spring 2' as the ink-rollers h h are perfectly cylindrical, in

a which case the screw 1, which passes through the top of the piece 0, can be set down so as to touch the top of the lug on the plate f, thus virtually making piece 0 and plate f solid; but I prefer under ordinary circumstances to leave a little space between the ends of the screws and the lugs, and to keep the ink-rollers to their work by means of the springs 2' i.

To remove and replace the ink-rollers h h, the screws l are backed sulficiently to allow the plates f to be raised against the action of the springs 'i, so that the open bearings in the plates f leave the journals of the rollers h free.

The ink-roller carriers at both ends of the body a are alike, and there may be any number of them necessary to hold the required number of ink-rollers, one pair only and two pairs of ink-rollers being shown in the drawings. They are caused to revolve around the body a by the grooved rollers g, fitting into flanged radial grooves in m on the inside faces of the gear-wheels or drivers at n, rotating on the hubs of the body a and driven by the gear wheels or pinions n, secured to the drivingshaft it.

Instead of the grooved roller 9, rectangular blocks may be used, adapted to slide in the flanged radial grooves m m and, instead of the flanged radial grooves m m and grooved rollers g being employed to drive the ink-roller carriers, they may be substituted by links connected to them and pivoted to the sides of the gear-wheels n n; and the form of the body a may be varied-as, for instance, its general formgnay be elliptical, with the flat surface for the typebed a.

or represents a chase holding a form, x, placed in the grooves on the sides of the typebed a. The dotted lines 3 Fig. 2, represent the platen of the press. ts actuating mechanism is not here shown, as I propose to use for this purpose the devices illustrated in the before-mentioned patent to Griflith and Byrne, No. 16S,635,dated October 11, 1875. The gearwheels 11 a revolve in the direction indicated by the arrow z. Fig. 2.

In the modification shown in Figs. 5, 6, 7, and 8 the main piece 0 of the roller-carrier has a dovetail groove in its face, which is adjacent to the cam 0, and in which fits the sliding piece 1). The cam-roller d is pivoted to this slide To hold the carrier in place when the ink-rollers h h are removed, I make the cam e a closed cam by forming the face 0 on the end of the body a.

The slide 12 has a projection, 11, which fits into an opening formed in the upper end of the main piece 0, and to the top of this projection is attached, by means of a screw, the small half-elliptical spring 1', the ends of which bear on the top of the main piece 0 between the lugs, to prevent it jarring out of place when the press is running; and should the spring 1- from any cause break, the main piece 0 is prevented from moving outward sufficiently to free the journals of the ink-rollers h by reason of it coming in contact with the saddlepiece r.

When it is desired to remove from or replace the ink-rollers in the press the spring a and saddle r are turned around into a right-angular position, as shown at Fig. 6, in the upper carrier, which allows the main piece 0 to be raised until the open bearings clear the journals of the ink-rollers h.

Two pairs of ink-rollers are here shown, the carriers of each pair being constructed as above described, and the main piece 0 of each carrier is connected to the wheel n by means of the link 8, the one end of the links of the two carriers at each end of the body a being pivoted to the side of the wheels at by one stud, as shown at s, so that as the wheel a revolves on the hub of the body a the carriers of the front pair of ink-rollers are pushed around the body a and the carriers of the second pair are pulled around the body a.

Fig. 5 is an end view of the body and ink roller carriers with the wheel it removed, and Fig. 6 is a front elevation of one end of the body, 850. In Fig. 8 the half-elliptical spring is removed to more clearly show the construction of the carrier.

If it is desired to operate the press with only one ink-roller to each pair of carriers, or with only one pair of ink-rollers, then in place of the ink-rollers removed I propose to use plain rods with bearing-rollers the size of the inkrollers on their ends to cause the carriers to travel around the cams c, the same as when the ink-rollers are used.

I wish it understood that 1 do not claim broadly ink-rollers adaped to be rotated around a fixed body which constitutes the type-bed and ink-distributing surface, as such is shown in the before-mentioned patentto Grf'lflillll and Byrne; but

What I claim, and desire to secure by Let ters Iatent, is-

1. As an improvement in printing presses, the stationary body forming the type-bed and ink-distributing surface, and provided with a flange-cam at each end, ink-roller carriers having eacha roller attached thereto, adapted to work against theinternal faces of the flan gecams, and open bearings for the ink-rollers, and. rotating wheels on the hubs of the fixed body connected to the ink-roller carriers, substantially as and for the purpose hereinbefore set forth.

2. In a printing-press, a stationary irregularly-formed ink-distributing and chase-holding body, having at each end an irregularlyformed flange-cam, in combination with two ink-rollers and their carriers, provided with bearing-rollers adapted to work on the internal faces of the cams and hold the ink-rollers firmly to the periphery of the body in all positions, substantiallyin themanner and for the purpose hereinbefore set forth.

3. In a printing-press, in combination, the flattened body a, provided with the cams e, the ink-roller carriers 0, provided with rollers d, and drivers n a, connected by moving connections to the ink roller carriers, substanziallily as and for the purposes hereinbefore set 'ort 4. In combination, the inkrollers h h, plate and the ink-rollers h h, in combination, con- 1', sliding on piece 0, provided with roller 61, spring i, and cam e, substantially in the man: Her and for the the purposes hereinbefore set forth.

5. The flanged radial grooves m m on driver n, the grooved roller g, the ink-roller carrier f c d, cam e on the end of the flattened body a,

manner and for the purpose set forth.

my hand this 30th day of April, A. D. 1881.

JOHN D. SHEDLOGK, H. D. WILLIAMS.

strueted and operating substantially in the In testimony whereof I have hereunto set

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