US205357A - Improvement in printing-presses - Google Patents

Description

. ZSheets-Sheet 2; C. B. GGTTRELL. Printing-Press.

No`f2o5`,357., Patented June`25,1878.

UNITED y STATES "PATENT QFFIG.

oALvEnT B. oorrnELL, or WEsrEnLY, Brione IsMLAND.

t IMPROVEMENT lN PR|NTlNGPREssEs- Specication forming part of Letters Patent No. 295,357, dated June 25, 1878 application filed May 27, 15376.V

To all whom 'it may concern:

Be it known that I, CALvER'r B.GoTfrnELL, of Westerly, in the county of Washington, inj

. the State of RhodeIsland, have invented ceri tain new and useful` Improvements in Printinglresses; and I do hereby declare that the following is a full and exact description there of, reference being had to the accompanying drawings, andV to the letters of reference marked thereon.

In printingpresses as heretofore constructed it has been exceedingly inconvenient and diiiicult to get at the impression-cylinder to arrange the hard packing, to fix the overlays, &c., on account of the close proximity to said cylinder of the delivery mechanism and feed-board, and any contrivance or construction by which a free access to the impression-cylinder may be had by the pressman (so that he might Withmore facilityu arrange Vor adjust the hard packing and overlays) must be af great desidlV eratum.` j I propose to make the machine so that the pressman may, without hinder'ance, have free and full access to the impression-cyliiider5` and to carry out this idea is the object of the irst part of my invention, which, to this end, consists in mounting the delivery mechanism, feed-board, &c., in or upon an auxiliary frame or frame-work which is capable of movement, either bodily or upon a pivot or hinge, in such manner that all the parts in rear of and adjacent to the impression-cylinder may, at the ers are hung in an auxiliary movable frame, so that by moving said frameall of said rolls may be lifted up out of "the way, there still remains the objection of having to move the frame and rolls directly by hand, and in in achines in which there are numerous rolls to be lifted or moved' the labor is considerable.

I propose now to entirely obviate the objections in this regard to presses; and to this end and object the second part of my invention consists in having the vibrating distributers and other rolls located over the ink-rollers arranged in a Vswinging or other movable frame, and in having combined with said frame a mechanism by which,'through the medium of a hand wheel, crank, or lever, the operator can, with ease and rapidity, move the said frame with its accompanying rolls out of the Way.

' To enable those skilled in theart to make and use my invention, I will proceed to more fully describe it,"referring by letters to the accompanyingdrawings, in Which- Figure 1 is a side elevation of a press embodying my several improvements. Fig. 2 is a top view of the same; and Fig.. 3 is an elevation similar to Fig. 1, butV representing the parts in different conditions, the delivery mechanism being shifted out of the way to make room for the pressman to readily get at the impression cylinder, and the auxiliary roller-frame being thrown up and forward to expose the ink-rollers, so that they may be conveniently taken out.

In the severalligures the same part will be found designated by the saine letter of reference.

A represents the usual frame or main framework of the machine, in which are mounted in the ordinary manner all the workin g parts, except the rolls located over the ink-rollers and the feed-board and delivery mechanism,which are arranged in auxiliary frames, in a manner and forpurposes to be presently explained.

B lis the impression-cylinder, with its gripershaft a and fingers b, constructed and operating in the usual manner; and C is the reciprocatory bed, which is driven back and forth in any of the known modes, and which, if the machine be a stop-cylinder, is made to propf erl y rotate the cylinder B.

In front of the impression-cylinder B are arranged, as usual, the ink-rollers, mounted in suitable bearings at c d in the main frame, and over th ese rolls are arranged the usual vibrating distributers e, and such other rolls levers, h, that are pivoted tothe frame A of the machine, and to the upper end of each of which is pivoted a connecting rod or bar, z', the other end of which is connected to an arm, j, made fast to the short shaft or hinge-pintle 7c, about the axis of which the frame D vibrates.

By means of this combination of devices, arranged as shown, the frame D may beraised into the position seen at Fig. 3, or lowered into its normal position, as seen at Fig. l, by simply turningV in one or the other direction the hand-wheel: E.

In rear ofthe impression-cylinder is located a shaft, G, which is provided near one end with a gear,'H, that meshes with the gear I of thedrum B, and on which are mounted the delivery-wheels m., which, in conjunction with their tapes n and tape-wheels o of shaft p, receive and carry off to the ily in theusual manner the printed sheets. But theselast-named shafts, and, in fact, all the delivery mechanv ism and parts immediately in rear of the impression-cylinder, instead of being mounted in the main frame A, are mounted in or carried anv auxiliary frame A2 which is arranged to slide back and forth horizontally, as I will presently explain.

1 L sthe usual feed-board, which is made in twoparts, and so that its hinged forward portion'. maybe turned up out ofthe way, as seen at Fig. 3, so that it is not necessary to slide the auxiliary frame A2 so far back as it otherwise would be in order to get all the parts suficiently distant from the impression-cylinder to allow the pressman free access to the latter. The auxiliary frame A2, that carries the feedboard and delivery mechanism, is formed or provided with ways s, as shown, which move in grooves formed in the upper edges of the portion t of the main frame, and these ways have teeth cut in their lower faces that engage with spur-pinions keyed fast to the shaft w. This shaft is mounted in suitable bearings in the main frame, and is provided with a handwheel, I?, or handle, by means of which it may be conveniently rotated in either direction.

To insure the retention of the auxiliary frame A2 in place during the running of the machine,

I have provided locking devices or catches, each composed, as shown, of a screw-rod, b2,

- the bifurcated end c2 of which is pivoted or lhinged to a lug, d2, projecting from the side of the frame A, and which has a nut e2, and a slotted lip-piece, f2, secured to the forward lower portion of the sliding frame A2.

When the parts of the machine are adjusted in running order, as seen at Fig. l, the nut e2 being screwed home against the slotted projecting lip-piece f2, the main frame A. a11d auxiliary frame A2 are securely and inseparably locked together; but by slightly loosening the nut e2 the fastening-rod b2 maybe turned out, and the frame A thus be left free to slide back.

The general operation'of'the machine when in operation to do the printing is, of course, the same as others, and needs no special explanation here. A

Whenever it is desirable to get at the inkrollers for their removal or the extrieation 0f a sheet drawn in, or for any purpose, the attendant simply takes hold of the hand-wheel E, and, by a partial revolution of said wheel, throws the frame D, containing all the rolls located over the removable ink-rollers, up into the position seen at Fig. 3.

It will be seen that, by the combination with the hinged frame D of some such mechanism as shown, the pressman can, with slight elfort and most expeditiously, elevate or throw up out of the way all the upper rolls to get at the inkrollers and form.

Many changes may be made in the mechanism shown for accomplishing the results aimed at without departing from the spirit of this part of my invention, the gist of which rests in the combination, with the movable frame, in which are mounted the rolls that work over the ink-rolls, of a mechanism, adapted to operate substantially in the manner hereinbefore described, -for moving the said frame.

Whenever it is desired to get at the impression-cylinder B to fix the hard packing or tympan and arrange the overlays, &c., the lpressman simply unlocks or unfastens the auxiliary frame A2, and, taking hold of the hand-wheel P, gives it a partial turn, whereby the said frame with all its parts is run back into the position seen at Fig. 3, and in this position, with the feed-board turned up, a sufficient space is opened in rear of the impressioncylinder to allow the man to get in back of the cylinder and most conveniently work at it.

It will be understood that, in lieu of having the auxiliary frame A2 made and arranged to slide back, as shown, it may be made to tip back on hinges, or may have any other desirable movement, and that it may be moved by other devices than the racks and pinions shown, the gist of this part of my invention resting in having the delivery mechanism, feed board, and other appliances usually mounted in the same frame with the impression-cylinder located in an auxiliary and movable frame, substantially in the manner shown and described, so that all these parts can be at pleasure moved away from the impressioncylinder and brought back into an operative relation with said cylinder, as set forth; and, further, in the combination, with such auxiliary movable frame and the main frame, of means, substantially such as shown and dcscribed, by which the described movements of the auxiliary frame and its appurtenances may be easily and quickly effected by the pressman.

It is, of course, necessary to have the gears re-engage in a proper manner after the separation of the parts, and to insure this any suitable gage or guide may be employed, such, for instance, as shown, composed of pointers or t indicating-fingers or marks land 2 on the 2. In combination with the main frame and impression-cylinder of the press, theauxiliary movable frame carrying the feed-board, delivery mechanism, and other appurtenances, the combination being and operating as specied, for the purpose set forth.

3. In combination with the main frame carryng the impression-cylinder and other usual parts, and the auxiliary movable frame carrying the feed-board, delivery mechanism, and other necessary appurtenances, the mechanism, substantially as described, for moving the auxiliary frame from and toward the impression-cylinder on the main frame, all substantially as shown and described.

In witness whereof I have hereunto set my hand and seal this 17th day of May, 1875.

C. B. COTTRELL. IL. s.]

In presence of- J. N. MCINTIRE, JACOB FELBEL.

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