US124907A - Improvement in printing-presses - Google Patents

Description

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Printing Press. 1 No. 124,907I Patented March26,1872.

`Pacented March 26, i872.

Printing Press.

THOMAS N. MORSE.

through the same.

THOMAS N. MORS, OF FAIRHAVEN, MASSACHUSETTS.

IMPROVEMENT IN P RlNTING-PRESSES.

Specification forming part of Letters Patent No. 124,907, dated March 26, 1872.

To all whom 'it may concern: j Y

Be it known that I, THOMAS N. MORSE, of Fairhaven, in the county of Bristol and State of Massachusetts, have invented a new and Improved Printing-Press; and I-do hereby declare the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing making a part of this speciiication, in whichy Figure 1, Plate 1, is an elevation of one side of the improved press. Fig. 2, Plate l, is a section taken longitudinally and vertically Fig. 3, Plate 2, is an elevation of one end of the press. Fig. 4, Plate 2, is a sectional view in detail of the ink-font, inking-rollers, and revolving impression-cylinder. Fig. 5, Plate 3, is a sectional view in detail, showing the devices for giving 11p-anddown motions to the inking-rollers and impression-cylinder. Figs. 6 and 7, Plate 3, show the flier in detail, its adjustable paper-rest, and adjustable hub. Fig. 8f, Plate 3, is a view of the cam and its yoke at the end of the flierrod, for vibrating the flier.

Similar letters of reference indicate corresponding parts in the several figures. This invention relates to cylinder printingpresses wherein the cylinder makes two revolutions to every movement of the type-bed; and has for its Object, mainly, the giving of positive movements tothe different parts of the press, as will be hereinafter explained.

The following description of my invention will enable others skilled in the art to understand it.

In the accompanying drawing, A represents the frame ofthe press, and Al is the inclined feed-table, from which the sheets of paper are fed to the nippers on the impression-cylinder R. C represents ahorizontal rectilinear reciprocating type-bed, which, by means of guides a a, working in grooved ways B B, is prevented from lateral displacement. The type-bed has an extension, C', applied centrally to its bottom side, and extending longitudinally from one end to the other of it. On one side of this oblong extension C', a contintinuous rack, b, is formed, with an intermediatecentrally-arranged rib, b', as shown in Fig. 2, Plate l. \\This rack consists of two horizontal rows of teeth terminating at both extremities in semicircular gears. Within the continuous rack plays a pinion spur wheel, c, which is keyed on the driving-shaft s of the` machine, and the end of which is extended bevond the said pinion c, so as to roll on the rib b when the pinion is in gear with the upper row of rack-teeth b, and thus keep the pinion in gear therewith. The driving shaft s is supported by two bearings, the inner one of which is vertically slotted, to allow the shaft with its pinion c the required vertical play to follow the teeth of the continuous rack above and below the rib b. It will thus be seen that rotary motion imparted to the shaft sin one direction, will impart a rectilinear reciprocating motion to the type-bed C. On the outer end of the driving-shaft s a pinion, c', is keyed, which engages with a large spur-wheel, D, on a shaft, Gr, and also with a smaller spur-wheel, D1, on a short shaft-,61. The wheel D1 engages with a wheel, D2, which is on the shaftf, which passes through vertical oblong slots 6, made through the sid es of the frame A,so as to allow the impression-cylinder to be raised and lowered bodily, as will be hereinafter explained. This impression-cylinder is provided with gripers for taking the sheets from the feed-table A and carrying them down upon the type-bed, and afterward delivering them to endless tapes, which convey them to the ier K. The spur-wheel D2 engages with a pinion, D3 on the shaft g'of a movable inkin groller, L, on the opposite end of the shaft of which is another spur-wheel, D5, corresponding in size to the wheel D3. The spur-wheel D5, on one side of the shaft g, engages with a spur-wheel, D, on the shaft 'i of an inkingroller, P', which works in the ink-fount H. A roller, P, is arranged between the two rollers L and P', for transferring ink from the latter to the former roller. The shaft g of inkingroller L passes through oblong slots 8, which are made through the sides of the frame A, and which are inclined toward the ink-fountain at an angle of about twenty degrees. The shaft g also passes through oblong slots 7,2 which are made through inclined forked eX- tensions E of vibrating arms o o, which slots are inclined at an angle of about forty-five degrees, more or less. The arms o are pivoted at their lower ends to the inner sides of the frame A, andv receive into the forked ends of their extensions E the journals h of the ink-- doctor P. The shaft g has its bearings in the upper' ends of two rods, E E, which are arranged on the outside of the frame A, and,

constructed with oblong slotted yokes on their lower ends, through which a cam-shaft, G, passes. By means of lifting-cams 4, (of the form shown in Fig. 4,) which are keyed on the shaft G, and studs 3 on the rods E, the inkroller L is raised and depressed once in every revolution of the shaft G. When the inkroller L is raised, it is moved toward the font H by the slots 8, which operation causes the ink-doctor P to be moved away from the fontroller by means of the slot 7 in arms 0, and brought in contact with the roller L. Wvhen the roller L is depressed the doctor P will be moved over in contact with the fountain-roller I. The fountain H, in which the ink-roller turns, has for its bottom a flexible scraperplate, r, which is secured fast at o to the fountain-trough, while its lower edge, which is in contact with the roller P', is free to be adjusted by means of set-screws t, arranged at proper distances apart from one end to the other of the said trough. The ends of the screws t are attached to the scraper r by swivel-joints. By means of screws thus applied to the flexible scraper r, the edge thereof can be adjusted toward or from the roller P', and when a small form of type is to be printed from, part ofthe scraper can be set up tightly against the roller P', so as to prevent part of this roller from feeding to the roller l), while the other part of the scraper can be adjusted to supply the ink in more or less quantities,as may be required. The extremities of the impression -cylinder shaft j' have their bearings in vertically adjustable pieces N, which are arranged inside of frame A, and extended down so as to receive through them the shaft G. The openings through the pieces N, through which shaft G passes, are oblong, and present to the shaft on top inclined planes, as shown in Fig. 5. To these pieces N studs w are applied, which are acted on by means of cams X on shaft G, so as to lift the impression-cylinder free from the surface of the type on the bed or platen G at every return or backward stroke thereof, and cause the said cylinder to descend and produce an impression at the proper times.

When, from any cause, it is desired to prevent the impression cylinder from being brought down upon the type-bed by the. cams X, I am enabled to throw up the said'cylinder ont ofthe way, whether the machine be in operation or at rest. This is done by means of rods F, which are pivoted to the lower extended toes of pieces N, and also pivoted by their curved ends at c to crank-arms F1, on a horizontal turning rod,2. On rod 2 is a lever-handle, F2, by vibrating which the pieces N, with their impression-cylinder, can be raised and depressed. The curved ends of the rods F and the crank-arm F1, allow the points 'u to pass far enough below the axis of the rod 2 to lock the pieces N when down, as represented in Figs. 2 and 5.

The vibrating flier K is composed of parallel teeth inserted into an oscillating head, Q, which has its end bearings in brackets T. This head Q has a collar, j, secured to it near one end by means of a set-screw, af, shown by Fig. 7 5 and it also has a pitman-rod, J, pivoted to it in a slot made in its periphery. The opposite end of the rod J is yoked, and has an oblong slot through it, as shown in Fig. 8, and through said slot passes the cam-shaft G. A pin, y', on the yoke, enters an irregularly-curved groove, q, in a cam, m, which is keyed on the shaft G, which imparts intermittent vibrating motions to the ilier. It will be seen that part of said cam-groove q is concentric to the axis of the shaft G. This retains the iier for a moment at rest in aposition to receive a sheet from the tapes. A part of the cam qpresentsa long arc. This gives the quick movement to the flier in carrying oft' the sheet, and a part of the cam presents a short curve, which returns the dier slowly to a position for receiving another sheet. These irregular movements are all produced by the operation of a single cani acting directly upon the ier-rod J. By means of the collar and its set-screw the flier can be adjust- A ed to a nicety for receiving the sheets and delivering them.

A prin tin g-press ofthe kind herein described requires a flier which is adapted for receiving and delivering sheets Ofdiferent sizes. This I accomplish in a very simple mannerto wit: I apply a strip, k, of suitable width to the tines of the tlier, so that it can be adjusted and set at diiferent distances from the head Q. I may either employ set-screws or depend on the friction of the tines at the points where they pass through said strip, for holding it at vdifferent points. This strip can be readily adjusted for receiving sheets of different sizes, and gauging their edges as they are delivered upon the receivingtable.

When the inking-roller L is depressed it supplies ink to rollers, (not shown in the drawing,) which transfer the ink to the form of type as it passes beneath them. In practice, these rollers will be arranged directly beneath the roller L, and in such relation to them that when this roller L is depressed it will bear upon said transferring-rollers and supply them with ink. A

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

l. The rods F and the shaft 2, in combination with the lifting-pieces N, inclined slot n, cam x, and studs w, and impression-cylinder R, operating substantially as described.

2. The rollers L and I), in combination with the slotted Aand bifurcated portions E on vibrating arms o, the inclined slots `S, through the frame A, a-nd the lit'ting-rods E, substantially as described.

THOMAS N. MORSE. Witnesses: Y

J on G. TRIPP, REUBEN NYE.

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