US9993A - Improvement in printing-presses - Google Patents

Description

' NITED STATES PATENT OEEICE.

CHARLES MONTAGUE, OF PITTSFIELD, MASSA()HUSET'IS.l

MPROVEMENT IN PRINTING-PRESSES Specification forming part of Letters Patent N o. 9,993, dated September (i, 1853.

T0 @ZZ whom, t may concern.:

Be it known that I, CHARLES MONTAGUE, of Pittseld, in the county of Berkshire and State of Massachusetts, have invented anew and Improved Printing-Press for Printing on a Continuous Sheet; and I do hereby declare that the following` is a full and exact description thereof, reference being had to the accompanying drawings, making part of this 4specitication- Figure l being a longitudinal vertical section of the press, and Fig. 2 a section of adetached part thereof.

Like letters designate corresponding parts in both figures.

" vI make use of a horizontal bed B, to which` -a crank Gand connecting-rod H orother suitable means.

The ink-'rollers o o o, dac., for distributing,` .the ink to the form n: at each stroke of the bed are supplied with ink from a large roller D, situated below the bed, by means of traveling rollers. yr fr', turning in the vibratory ends of conducting-arms q q, which `are ar-Y ranged land operated in the following `manner, viz: They are attached' to vibratory rollers p j), around which pass cordst t, as shown in Fig. l, whose other ends are attached to a springs or other elastic holder secured to the drivingdever Cin such a manner that the left cord t will be straightened and turn its roller p, so as to carry thelett arm and roller qand 9' up to the lett ink-rollers when theI driving-lever C passes to the'right, as shown -in Fig. l, While at the saine time the right cord is loosened, so as to let down the right conducting-roller to the large roller D, and vice versa. The use of the spring s is to obviate the difficulty of adjusting a positive action of the lever C on said conducting-rollers with sufficient exactness and to produce an elastic pressure of the said conducting-rollers on thei'r'respective ink-rollers o o o.

The' continuous sheet a is,a first wound around a roller g at one end of the press. .It is then vpassed down under the pressure-cylinder A and thence up around awinding-cylinder F. at the other end of the press, ready to be wound upon a roller f, which rests on said cylinder E, turning and moving up and down inn guides j, so that it may adjust itself to the dierent sizes it assumes as the sheet is received thereon. A cog-Wheel Z) on one end of the pressure-cylinder communicates motion by the rack 7c from the bed to said cylinder and through cog-Wheels c c c c precisely equal motion to two rollers (Z (l, one on each side of the cylinder. The winding-cylinder E is geared by cog-wheels c c tothe. lefthand roller d in such a manner that its periphery will move just twice asfast as the peripheries of the cylinder A and rollers cl d. Small rollers e e e are situated, respectively, below the cylinder E and rollers el d, so near as to hold the sheet a, which passes over them, in contact with said cylinders and rollers, as represented in Fig. 1.

The cylinder E is provided with a coupling device, by which it is caused to revolve only in one direction-viz., that indicated by the ar'rowin Fig. l-and reinainsstationary during the opposite movement of the rest of the press. Any convenient and suitable device may be employed for that purpose. I usually employ that represented in the drawings and most clearly shown in Fig. 2, which is a central section of that end of the cylinder E to which' the device is attached. The -cog-wheel c( is provided with a short tube or elongated hub extending over the shaft Z into. a recess in the end of the cylinder, which tube terminates inI a disk m, Whose face is formed into a series fof radial notches with perpendicular sides in one direction and oblique sides in the other direction, which titinto corresponding notches in reverse at the bottom of the recess of the cylinder. Said.' disk is pressed intothe recess by al spring fn, whichl thuscouples the cogavheel c to the cylinder E when revolving in one direction, (indicated by the arrow in Fig. 1,) but allows it to slip without turning said cylinderwhen moving in the other direction.

Between the Winding-cylinder E and the adjacent roller d is situated a feed-roller h, which-rests upon the sheetor web of paper turning and moving up and down in slots or staples Said feed-roller is of a suitable weight to enable the friction of the rollers fl d and ce and of the pressure-cylinder and form, when' in motion, with the papento raise said roller by straightening the sheet beneath it, but so that it will sink to thev bottom of its slotted bearings and' draw down the paper with it as soon as the rollers d d and pressre-cylindercease to turn and the form 'leaves the paper at the end of each stroke-of the bed.

rlhe operation of the press is in the following manner, to wit: Suppose the. press to be in the position in which the bed B. is just becylinder, but just as much more by straightening the slack under the roller h, thereby raising said roller and the paper beneathit to the position indicated by the dotted lines, Fig. l. As soon as the bed comes to the end of its stroke and clears the pressure-cylinderA said roller h falls back to the bottom of its slots, and thereby brings forward enough of the paperfrom the roller g for an impression. Then when the opposite stroke ot' the bed is madeihe Winding-Cylinder E remain Stationary and prevents the-sheet from unwinding again; but that part-of the sheet under the pressure-cylindenis carried back as much as the periphery of the pressure-cylinder moves or sufficient for one impression, thereby again bringing up the roller h to the position shown by the dotted lines. As soon as this stroke is finished the said'roller again falls to the bottom of' its slotted bearings and brings' forward again that portion of the sheet which was carried back and impressed in the-last stroke, and the press thus assumes the same position, as shown in the drawings, ready vfor another forward stroke. By this arrangement anim.- pression is taken at each stroke of the bed upon a continuous sheet. When one side of the. said sheet has thus been printed, the rollerf is put inthe place of the roller g and the other side ofthe sheet printed, during which'operation a device may be employed for cutting off each copy as fast as printed, instead of winding the sheet again upon a roller.

.Having thus fully described my improved printing-press for printing on a continuous sheet, what I claim4 therein as new, and desire to secure by Letters Patent, is

l. The combination of the intermittently- Winding cylinder E'and feed-roller h or their equivalents with the reciprocating pressurecylinder A, bed B, and rollers d d and e e e, arranged and operating in such a manner'as to successively make an' impression on the continuous sheet at each movement of the bed, substantially as herein set forth.

2. In combination with a double set ofvinking-rollers, the arrangementof the arms q q' proved printing-'press signed by me this 23d day of March, 1853.

CHARLES MONTAGUE. Witnesses:

J. S. BROWN, GEo. A. C. SMITH.

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