US684223A - Printing-press. - Google Patents

Description

No. 684,223. Pat ented on. a, I90l. E. F. GRANDY.

PRINTING PRESS.

(Application filed Mar. 5, 1901.) (No Model.) 5 Sheets-Sheet I.

$555 5- I \/E m No. 684,223. Patented Oct. 8, [90L E. F. GBANDY.

PRINTING PRESS.

(Application filed Mar. 5, 1901.)

5 Sheets-Sheet 3.

(No Model.)

hm-S5 No. 684,223. Patented Oct. 8, 19m.

. E. F. BRANDY.

PRINTING PRESS.

(Application filed. Mar. 5, 1901.) (No Model.) 5 Sheets-Sheet 4.

, Patented Oct. 8, IQOI. E. F. GRANDY.

PRINTING PRESS.

[Application filed m. 5, 1901.

(No Model.) 5 Sheeis-Shaet 5,

Q12 cams PETERS co, FMuTo-ufnm msmum'cn, a c.

UNITED STATES PATENT OFFICE.

EDXVARD F. GRANDY, QF BOSTON, MASSACHUSETTS.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 684,223, dated October 8, 1901.

Application filed March 5,- 1901.

To all whom it may concern.-

Be it known that I, E WARD FRANKLIN GRANDY, of Dorchester, Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

This invention has relation to multicolor cylinder-presses of the type illustrated in the patent to HenryE. Grandy, No. 484,421, dated October 18, 1892. Such presses included a form=cylinder having a plurality of printingplates in its periphery, with each of which were adapted to coact a series of form-inking rolls. Each series of rolls was adapted to receive and transfer ink of a particular color to a predetermined plate, mechanism having been provided for automatically bringing the ink-rolls into contact with the plate on the cylinder at the proper time. The form-inking rolls and the distributing-rolls occupied a fixed relation to each other and were bodily movable by a cam mechanism toward and from the periphery of the form-cylinder.

The object of the present invention is to provide certain improvements in the press thus briefly described-first, in the ink-rolls and the mechanism for moving them by means of which the distributing-rolls can occupy a fixed relation to the form-cylinder, and thus relieve the cam mechanism from the great weight hitherto borne by it, and thereby reduce the power necessary to operate the distributing-rolls, and, second, to improve the cam mechanism itself,whereby the movement of the ink-rolls may be accomplished evenly and smoothly and without jarring.

On the accompanying drawings, forming a part of this specification, Figure 1 represents a portion of a printing-press embodying my improvements. Fig. 2 represents an enlarged view of the form-inking rolls and the distributing-rolls which coact therewith. Fig. 3 represents a longitudinal section on the line 3 3 of Fig. 2. Fig. 4 represents a section 011 the line 4 4 of Fig. 2. Figs. 5 and 6 represent in detail one of the adjusting devices for one of the form-inking rolls.

Referring to the drawings, 20 indicates a suitable frame, in which are journaled trunnions 221 of the form-cylinder 21. This cylinder is provided for the reception of a plu- Serial No. 49,939. a. model.)

copy the same segment of a circle that the corresponding printing-plate occupies. These cams are provided with inclined ends, (not shown,) and they are arranged at different radial distances from the axis of the cy1in der. Motion is imparted to the cylinder in the usual manner. Mounted upon the frame are a plurality of series of inking-rolls, there being one series for each printing plate or cam 57, each series of printing-rolls being controlled by a certain cam and being unaffected by the other cams.

The form-rolls are indicated at 27 27, and they are arranged in contiguity with the distributing-rolls 22 22, the latter occupying a fixed position with relation to the axis of the form-cylinder.

The distributing-rolls receive their motion from the form-cylinder, the latter being provided with gear-teeth intermeshing with and driving idler-gears 100, which in turn int-ermesh with gears on the shaft of the distributing-rolls.

' Hitherto, as has been explained, it has been the custom to move the distributing-rolls to ward and from the cylinder, so that it was necessary to form the gears with relatively long teeth to permit of relative movement. By mounting the distributing-rolls, however,

on stationary bearings it is unnecessary to change the relationship of the gears, whereby the noise caused by operating the cylinder is greatly reduced according to the present invention.

The form-rolls 27 27 are, as stated, in contiguity with the distributing-rolls, and they are automatically moved toward and from the periphery of the cylinder, so as to engage and ink the printing-plates thereon, said rolls swinging in the arc of a circle about the axes of the distributing-rolls. Y

Each roll 22, as shown in Figs. 2, 3, and 4, is fixed on a shaft 23, which carries the gears 101, intermeshing with the gears 100. The shaft 23 is journaled at each endina block 24 in a bracket 25, secured rigidly to and projecting outward from the frame 20. Between the block 24 and the bracket 25 there is interposed a sleeve 28, which is held against rotation by a set-screw 29 passing through the bracket into firm engagement therewith.

The bearings for the rolls 27 are upon the ends of arms which are fulcrumed upon the said sleeves 28. The shaftupon which each roll 27 is journaled is indicated at 30. It is mounted at each end in a sleeve-bearing 31,. which is provided with an elongated transverse dovetail groove 32 to receive a complemental tongue 33 upon a bar 34. This bar is arranged in parallelism to the shafts and 23, and it is provided with two eyes or straps 3 5 36, which encircle the sleeve 28. The

tongue 33 is elongated, as shown in Fig.5,

. and it is formed with a groove 38 to receive a lug 39 from the sleeve 31. v

Arranged in the groove 38 there is a screw 40, having similar ends properly journaled in the stock at the end of the groove 38, as shown in Fig. 5, said screw passing through a thread ed aperture in the lug 39. One end of the screw is provided with a collar 41, affixed thereto, while at the other end of the screw there is a head of wrench-retaining formation by which the screw may be rotated to adjust the sleeve or hearing 31. Thus adjustment for the sleeve 31 is providedrwhereby the roll 27 may be kept properly in contact with the distributing rolls 22. The bar 34 has an elongated dovetail tongue 43 arranged transversely thereto and projecting radially relatively to the cylinder. This tongue is grooved, and in the groove lies a screw 44, similar to that at 40. The screw is engaged with the lug of a grooved block 45, (see Fig.

3,) so that said block may be adjusted radially of the cylinder and on a line transverse to the line of adjustment of the sleeve-bearing 31.

The block 45 at each end of the press is connected by a link 46 with a pin 47, which into and out of engagement with the cylin der 21. The link 46 has a loose or pivotal connection with the block 45 through the medium of a pivoted pin 54, and it is likewise pivotally connected to the pin 47, being held between a flange and a nut 56 thereon. In order to move the slide inward against the pressure of the spring 51, I employ mechanism actuated by the face-cams57 on the ends of the cylinder 21.

In Fig. 3 one of the earns 57 is illustrated in section, and it is shown as bearing against a roll 58, journaled in the end of a Wedge 59, which passes through the frame 20, being guide 50.

when the wedges are forcedoutward orin the. 85

either angular or provided with means to r 1 P hold it against rotation. The end of theg wedge projects into a socket provided by V hollow bracket or casting 60, secured to the 70} i This hollow bracket is readily'ref; movable, being secured in place by screws 1.

or belts in any desired way. The rolls 58 are each held yieldingly against the cams 57 or r g i. the ends of the cylinder by a spring .61, arranged in a socket and having one end bear- 7 :5 ing against the wedge 50 and its other end resting against a disk 62, which is adj ustable by means of a set-screw 63 to varythe ten-. sion of the spring. The wedge passes through 89 an aperture or slot 64 in the slide '49, and it is provided with an incline 65, against which" the roll 66 is held yieldingly by a spring 51. From this descriptionit will be observed that".

direction of the arrow in .Fig. 3 the inclines-1 65, hearing against the roll 66, will forcethe slides 49 inwardly and move theroll 27 into; engagement with the form-cylinder without 1 affecting its contiguit-y with the roll 42; The connections interposed between the: slide 45and the roll 27 are, as has been shown, readily adjustable to compensate forthe; wear on the roll 27 or the transferring-roll.2 2, whereby the form-roll 27 may be adjusted HI-" ward and from the form-cylinder and also toward and from the distributing-roll. 1The; form-rolls 27 may be arranged in pairs to op-f erate in conjunction with a single distribut? ing-roll, or there may be the single form-roll 0 for each distributing-roll, this being a mat ter of convenience and discretion. In addition to preparing an accurate adjust-v I ment of the form-rolls relatively to the formcylinder and the distributing-rolls thermechr I05 anism which I have provided insures a move-' W g ment of the form-rolls toward and from'op; 2 erat-ive position without jarring and with'a I smooth easy motion. By the .employment.{ V V oi the face-cams and the wedges operated 1116' thereby the power necessary to actuate the form-roll connections is greatly reduced,when} considered in connection with the devices? hitherto employed for a similar purpose, and, moreover, the face-cams being on the cylinder 11$? i end take up butlittle room. The wedges bear 7 against the faces of the cams and are attached; to the cylinder ends, and there is no danger,': 7} therefore, of loosening the cams, and thereby decreasing the accuracy and eiiiciency of the. i210" mechanism. Moreover, the mountingof the i, distributing-rolls upon fixed bearings relieves 1 7 the cam actuated mechanism from their" 7 weight, this being of great assistance in the; reduction of the power necessary to actuate 1 25 the mechanism. r T It is not necessary to illustrate the opera f tion of the mechanism further than has been already done, save to state that each series V of printing-rolls is drawn-into operative rela 1 o tion to a printing-plate as the corresponding cam engages the mechanism for moving said 7 roll, and consequently each plate receives ink of its proper color. In connection with this mechanism I provide improved devices for moving the feeding or paper cylinder toward and from operative position. The said cylinder is shown in Fig. 1, to which reference may now be had. It is indicated at 80, and its trunnions are journaled in split boxes 81, supported upon springs 82 in standards 83. The standards are formed with guides, in which the boxes are adapted to reciprocate.

The springs 82 normally hold the boxes raised with the feeding or paper cylinderin inoperative position. To move said cylinder, I employ wedges 84., interposed between rolls 85 on the top of the standard and rolls 86 on the boxes 81. The wedges are formedwith rolls or projections 87, extending into segmental slots 88 in levers 89, which are fulcru med at 90. The slots 88 are eccentric with respect to the fulcrums 90, so that the oscillation of the lever effects a longitudinal or reciprocatory movement of the wedges 84. The levers are connected by links 91 with levers 92 upon the ends of a shaft 93. One of the levers 92 is connected by two connecting-rods 95 96 with two foot-levers or treadles 97 98, respectively, which are fulcrumed at 99 upon the platform 105. The levers 98 97 are of the first and second classes, respectively, that at 97 being depressed by the foot for swinging the levers S9 upward,while that at 98 is employed for swinging the said levers 89 downward. From this it will be seen that by depressing the proper lever the boxes 81 and the paper-feeding cylinder 80 may be raised to operative or lowered to inoperative position, as occasion may require.

The employment of the wedges for varying the position of the boxes in the feed-cylinder reduces the power necessary to move them and provides for the said parts being actuated with an even smooth movement. I do not herein claim, however, the above-described paper-feeding mechanism, as I have filed an application therefor.

Having thus explained the nature of the invention and described a way of constructing and using the same, although without attempting to set forth all of the forms in which it may be made or all of the modes of its use, I declare that what I claim is- 1. In a color-printing press, a form-cylinder adapted to carry a plurality of forms, a distributing-roll in fixed relation to said cylinder, a form-roll in contiguity to said distributing-roll, and automatic mechanism including cams on said cylinder for moving said form-roll into and out of operative relation with said cylinder without destroying its contiguity to said distributing-roll.

2. In acolor-printin g press, a form-cylinder, a distributing-roll in fixed relation to said cylinder, a form-roll in contiguity to said distributing-roll, and automatic mechanism actuated by said cylinder and including cams on said cylinder for swinging said form-roll about the axis of the distributing-roll into and out of operative relation to the printingcylinder.

3. In a color-printing press, a form-cylinder adapted to carry a plurality of forms, a distributing-roll in fixed relation to said cylinder, a form-roll in contiguity to said distributing-roll, bearings for the form-roll adapted to swing about the axis of the distributingroll,and cylinder-operated mechanism including cams on said cylinder for moving said bearings.

4. In a color-printing press, a form-cylinder,

a form-roll, a distributing-roll, movable bearin gs for the distributing-roll, a slide connected to each bearing to move it, and a cylinder actuated wedge for operating each slide.

5. In a color-printing press,a form-cylinder, a plurality of distributing-rolls, and a formroll in operative relation to each distributingroll, a plurality of face-cams on the end of the cylinder, and means actuated by said facecams for moving said ink-roll into and out ofoperative position, said face-cams being at dilferent distances from the axis of said cylinder.

6. Inacolor-printing press,aform-cylinder, an ink-roll movable toward and from the periphery of the cylinder, a face-cam on the cylinder, a wedge actuated by said cam, and a connection between said wedge and said inkroll.

7. In a color-printing press,a form-cylinder, an ink-roll, movable bearings forthe ink-roll, a spring-pressed slide connected to said bearings, a spring-pressed wedge for moving said slide against the pressure of its spring, and a cam for moving said wedge against the pressure of its spring.

8. In a color-printing press,a form-cylinder, a transferring-roll having bearings fixed with relation to the cylinder, levers fulcrumed on the axis of said transferring-roll, a slide connected to each lever, and a cylinder-actuated wedge for moving each slide.

In testimony whereof I have affixed my sig nature in presence of two Witnesses.

EDWARD F. GRANDY. I

Witnesses:

O. F. BROWN, A. D. HARRISON.

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