US577554A - Registering mechanism for printing-presses - Google Patents

Description

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N O S U H S W m d 0 M W REGISTERING MECHANISM FOR PRINTING PRESSES. .No. 57'7,554.

Patented Feb. 23, 1897.

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v W. S. HUSON. REGISTERING MECHANISM FOR PRINTING PRESSES.

No. 577,554. I Patented Feb.'23. 1897.

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NITED STATES PATENT OFFICE.

WINFIELD S. HUSON, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO THE CAMPBELL PRINTING PRESS AND MANUFACTURING COMPANY, OF

NEW YORK.

REGISTERING MECHANISM FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 577,554, dated February 23, 1897.

Application filed May 28, 1892. Serial No. 434,813. (No model.)

Specification.

The aim of this invention is to produce a new and improved registering mechanism for prlnting-presses which will secure absolute 1 and perfect register between the impressioncylinder and the reciprocating bed of a printing-press. I

The invention is especially designed and adapted for use in connection with the two or multi revolution single or multi cylinder printing-press, though of course the same may be adopted and used with any form of cylinder printing-press, and with this understanding I will further describe my invention as applied to the ordinary well-known tworevolution cylinder printing-press.

My invention consists of the device described and claimed in this specification and illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a printingpress with my invention applied thereto, the front framing being broken to show the bed. Fig. 2 is a sectional plan of one of the side frames, showing the cams mounted thereon. Figs. 3 and 4 are sectional views taken on line 3 3 of Fig. 1, Fig. 3 showing the registering-rack in mesh and Fig. 4 the registeringrack out of mesh. Fig. 5 is a section taken on line 5 5 of Fig. 1, the parts being in the same position as shown in Fig. 3; and Figs. 6 and 7 are views similar to Figs. 3 and 4, illustrating a modification.

Referring to the drawings and in detail, A represents the impression-cylinder of a cylinder printing-press, and B a registering gear or segment secured to the side of the same in any of the well-known ways. The usual reciprocating bed is represented by C, and on the bed is mounted the laterally-shifting registering-rack D. This registering-rack consists of the rack proper, which is adapted when moved to engage the registering-gear to lie partly on the bed C, as shown in Fig.

3, and the rack has a downward-extending naled a shaft G which extends nearly the whole length of the bed, as indicated in dotted lines in Fig. 1, and fastened on this shaft is a gear or pinion G, with which rack H meshes. Another'rack I is fitted so as to slide laterally into the bed under the shelf d, and this rack I engages the under side of the pinion G, as shown. On the outside of this rack I is secured or fastened a roller J. On the other end of the shaft G is fastened another pinion Gr, similar to pinion G, and extending inwardly from the rack D, opposite to this pinion G, is the rack H, similar to rack H, which engages the top of the pinion G. Thus as the shaft G is oscillated the rack D will be moved outwardly and inwardly at two points. Of course by adding other gears in the case of a long bed the rack could be moved at more than two points.

On the side frame K are arranged two cams L and M. These cams are arranged in different horizontal planes, as shown, and are oppositely inclined, and are so arranged that when the bed has reached the limit of its for- .ward or printing stroke to the left the roller should be backed up, as it is technically called.

If the cam-surfaces were arranged in the same plane and the rollers also in the same planeif the bed should be backed up, for instance, before the proper roller has actedthe wrong roller would engage one of the cams, as when one roller is moved inwardly the other is moved outwardly.

On the side of the registering-gear is secured a guard-ring N, which extends ontwardly to a little more than to cover the outside of the teeth, and the function of this guard-ring N is to keep the rack in mesh with the gear after the same has been moved inwardly, as shown in Fig. 3, and to keep the rack out of mesh when the same is shifted to clear the gear, as shown in Fig. 4.

The guard-ring N is important because by the use of the same the registering rack and gear cannot become accidentally engaged or disengaged to affect the proper operation or smash the teeth.

In Figs. 5 and 6 the registering-rack R instead of being mounted to slide laterally is pivoted so as to turn laterally out of engagement with the gear B. In this case the rack R is secured to an arm S, which is fastened on a shaft Q, which is jonrnaled on the side of the bed, as shown, and on this shaft Q are fastened gears G and G similar to those in the previous device. Rack 1, having a roller .I, is mounted underneath the gear G, as in the previous device, and rack P, having a roller E, is mounted to engage the gear G, and this rack P corresponds to the rack II of the previous device. The rollers and cams are arranged in this modification substantially as in the other device, so that theroller E will engage when the bed is at its righthand extreme and move the rack laterally inwardly, and so that the roller J will engage when the bed is at its left-hand extreme and move the rack laterally outwardly. Thus the action of this modification is substantially the same as that of the previous device. The guard-ring N is also used in this device to perform the same function as in the previous device. Thus it will be seen that I have invented a device by which the bed and cylinder are positively geared together on the printing-stroke and by which they are entirely independent on the retrograde stroke of the bed, and a device by which the rack will be prevented from improperly engaging the registering-gear,'and whereby the same is held in engagement with the gear at the proper time. A starter segment and rack might be added, if desired, to help the registering gear and rack to properly engage.

The device herein shown and described may be greatly varied by a skilled mechanic without departing from the scope of my invention as expressed in the claims.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a cylinder printing-press the combination of an impression-cylinder having a registering-gear connected to the same, a reciprocating bed having a registering-rack adapted to coact with said registering-gear, and means for shifting said rack laterally so that the rack and the gear will be in mesh on one stroke, and out of mesh on the other stroke of the bed, substantially as described.

2. In a cylinder printing-press, the eombination of the impression-cylinder having a registeringgear secured to the same, the reciprocating bed having a registering-rack mounted on the same, means for moving one of the members of said registering mechanism laterally, and a guard secured to the stationary member of the registering mechanism, whereby the moving member of the registering mechanism will be held in place while the mechanisms are cooperating, substantially as described.

3. In a cylinder printing-press, the combination of the impression-cylinder having a registering-gear, the reciprocating bed carrying a cooperating registering-rack, means for moving said rack laterally, so that the same will alternately engage and disengage said registering-gear, and a guard secured to the side of said gear, substantially as described.

4. The combination in a cylinder printingpress of the impression-eylinder A having the registering-gear 13 secured to the same, the reciprocating bed 0 having the register-' ing-rack D, suitable rollers mounted to move said rack, and stationary cams on the frame, the whole arranged so that the rack will be moved in to mesh with the gear as the bed makes its forward or printing stroke, and so that the rack will be moved laterally out to clear the registering-gear as the bed makes its retrograde or return stroke, substantially as described.

5. The combination in a cylinder printingpress of the impression-cylinder A having the registering-gear 13 secured to the same, the reciprocating bed having the registering rack D mounted on the same, said rack having a roller E and rack II, pinion G which said rack engages, and rack I engaging the other side of pinion G and having a suitable roller .I on the outside end thereof, and suitable cams mounted on the side frame, the whole arranged to operate as described.

6. The combination in a cylinder printin gpress, of the i1npressiolrcylinder having a registering-gear secured to the same, the reciprocating bed having a registering-rack adapted to coact with said registering-gear, means for shifting said rack laterally in and out of engagement with said registering-gear, and connections whereby said rack will be positively operated at two different points, substantially as described.

7. The combination in a cylinder printingpress, of the impression-cylinder A having the registering-gear 13 secured to the same, the reciprocating bed having the registeringrack D mounted on the same, said rack havshifted at two points, substantially as deing a roller E and rack H, a pinion G which scribed.

said rack engages, shaft G on which said In testimony whereof I have hereunto set pinion is mounted, rack I engaging the other my hand in the presence of two subscribing 5 side of pinion G, and having a suitable roller Witnesses.

J on the outside end thereof, suitable cams mounted on the side frame, arranged to op- WINE IELD HUSON' erate as described, pinion G mounted on Witnesses: said shaft G and rack H cooperating with LOUIS W. SOUTHGATE,

10 said pinion G whereby said rack D will be E. M. IIEALY.

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