US529932A - Emil meier - Google Patents

Description

(NdModeL) E. MEIER. BRAKE ATTACHMENT FOR INK ROLLERS. No. 529,932. Patented Nov. 27,1894.

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UNITED STATES PATENT OFFICE.

EMIL MEIER, OF NEW YORK, N. Y.

B RAKE ATTACHMENT FOR INK-ROLLERS.

SPECIFICATION forming part of LettersPatent No. 529,932, datedNovenl'ber 27, 1894. Application filed December 28, 1893- Serial No. 494,930. (No model.)

To (ZZZ whom it may concern.-

Be it known that I, EMIL MEIER, of the city, county, and State of New York, have invented a new and Improved Brake Attachment for Ink-Rollers, of which the following is a full, clear, and exact description.

lVIy invention relates to improvements in printing presses and particularly to attachments for the ordinary angle or distributing rollers. These, as it is well known, are usually made of glue and molasses, and have endwlse as well as rotary movement and are turned by contact with the inking table. If riders are used on the angle rollers, the increased heft causes the rollers to be struck with too great force by the table and they soon get out of shape, and if they are not used, the rollers, on account of their weight, turn freely after being struck by the table, so that when the table, on its return stroke, comesin contact with the rollers, it meets them while the rollers are turning in the reverse direc tion to the movement ofthe table, and injurious friction results.

The object of my inventionis to produce a very simple andinexpensive spring brake attachment, which may be applied to the shafts and angle rollers, which is adjustable so as to fit rollers arranged at diflerent distances apart, and which is adapted to clasp the shafts in such a manner as to permit the usual endwise and the necessary rotary movements of the rollers, but to prevent the rollers from rotating except when in actual contact with the table. v

To these ends my invention consists of cortainfeatures of construction and combinaangle rollers, these being shown in their customary position adjacent to the reciprocating inking table of a printing press. Fig. 2 is a detail planview of the attachment embodying my invention. Fig. 3 is an end elevation, partly in vertical section on the line 33 of Fig. 2, showing also the application and Fig. 4 is a vertical section on the line 4;&

of Fig. 3. p

The angle rollers are of the usual kind and arranged in the customary way, being carried by shafts 11 which have reduced ends 12 forming the journals, these being hung in the slotted posts 13 on the press 14 in the usual manner, and the journals 12 are free to slide for a limited distance in the posts. The angle rollers contact with the table 15, which is exactly the usual kind, and which has at its front edge a swinging contact bar 15 to first engage the rollers.

The rollers are usually arranged in pairs, and consequently I provide a spring brake attachment which is adapted to be applied to a pair of the roller shafts. In this attachment a pair-of upper shoes 16-and lower shoes 17 are used, which are adapted to clasp the shafts 11, see Figs. 3 and 4, and as they are pressed together by a spring as described below, and the friction of the shoes on the shafts is sufficient to stop the rotation of the shafts as soon as the rollers are out of contact with the table. The shoes 16 and 17 are carried by upper and lower plates or brackets 18 and 19, the former being bent downward in the middle, as shown at 20, so as to the better act as a guide for the connecting bolt 21 which is fastened rigidly to the lower plate 19 and slides freely through the bent portion of the upper plate 18, the bolt having at its upper end a head22 between which and the lower portion of the bend 20, in the'upper plate, is a spiral spring 23, which is coiled around the bolt and the pressure of which is sufficient to force the plates together hard enough to cause the shoes 16 and 17 to press with considerable friction on the shafts 11, and thus when the shafts are set in motion by the table the shoes will stop them as soon as the table leaves the rollers. It will be seen that the spring 23 may be made just strong enough to have the desired effect on the brake shoes. The upper and lower plates 18 and 19 are slotted longitudinallynear the ends, as shown at 24, and fastening screws 25 project through the slots and into the shoes 16 and 17, thus holding the shoes in place, and it will be seen that this arrangement enables the shoes to be adjusted longitudinally in relation to the ice plates so that they may be made to fit properly on the roller shafts 11, which may be at different distances apart.

When the brake attachment is to be applied to a pair of rollers, the pairs of shoes are arranged the proper distance apart so that they may fit nicely on the shafts of the rollers, and the head 22 of the bolt is then grasped and the lower plate 19 with the shoes 17 turned at right angles to the upper plate, as shown in Fig. 2, thus permitting the lower plate and the lower shoes to be pushed downward between-the adjacent roller shafts, and the shoes 17 are then turned back parallel with the shoes 16 and permitted to spring upward against the shafts, after which the shoes 16 and 17 will clasp the two shafts as clearly 'illustrated in Fig. 3.

By reference to Fig. 4: it will be seen that the upper shoes 16 are longer than the lower shoes and the shoes 16 are longer than the longitudinal movement or stroke of the rollers with which they are connected, so that there is no danger of a shoe 16 dropping down on the journal 12 so as to cause the shoe to prevent the necessary endwise movement of the roller.

It will be seen that the attachment is very simple and inexpensive, that it may be readily applied to the shafts of the rollers, and that it is an easy matter to adjust the tension of the spring 23 in such a way as to permit the rotation of the rollers and yet stop them as soon as the table passes out of contact with parallel shafts, substantially as described.

2. A device of the kind described, comprising an upper and lower plate, the upper plate having a depending middle bend, a springpressed bolt secured to the lower plate and slidable in the bend of the upper plate, and brake shoes carried near the ends of the two plates and adapted to clasp parallel shafts, substantially as described.

3. A device of the kind described, com prisingbpposite plates, a spring for pressing the plates together, and shoes carried by the plates and adapted to clasp parallel shafts, one shoe of each pair being longer than the other, substantially as described.

EMIL MEIER.

Witnesses:

WARREN B. HUTCHINSON, C. SEDGWIOK.

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