US771924A

US771924A - Inking mechanism for flat-bed printing-machines.

Info

Publication number: US771924A
Application number: US19691604A
Authority: US
Inventors: Thomas M North
Original assignee: Linotype and Machinery Ltd
Current assignee: Linotype and Machinery Ltd
Priority date: 1904-03-07
Filing date: 1904-03-07
Publication date: 1904-10-11
Anticipated expiration: 1921-10-11

Description

No. 771,924. I I PATENTED OCT. 11, 1904. T. M. NORTH.

INKING MECHANISM FOR PLAT BED PRINTING MACHINES.

APPLICATION FILED MAR. 1. 1904.

NO MODEL. 1 '1 s11nnrs-snnm 1.

W QJQLMS W WMW illmvw y No. 771,924. PATENTED OCT. 11, 1904. T. M. NORTH.

INKING MECHANISM FOR FLAT BED PRINTING MACHINES.

APPLIOATIOR IILED MAB. 7, 1904.

N0 MODEL. 7 SHEETS-SHEET 2.

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. T,- M. NORTH. INKING MECHANISM FOR PLAT BED PRINTING MACHINES.

APPLICATION FILED HA3. 7. 1904.

7 SHEETS-SHEET 3.

no MODEL.

No. 771,924. 7 PATENTED OCT. 11, 1904. T. M. NORTH.

INKING MECHANISM FOR FLAT BED PRINTING MACHINES.

- APPLICATION FILED HA3. 7, 1904.

N0 MODEL.

7 SHEETS-SHEET 4.

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No. 771,924. PATENTED 001. 11, 1904. T. M. 11011111. INKING MECHANISM FOR FLAT BED PRINTING MACHINES.

APPLICATION FILED MAR. 1, 1904. No MODEL.

7 SHEETS-SHEET 51 No. 771,924. I PATENTED OCT. 11, 1904.

' T. M. NORTH. INKING MECHANISM FOR FLAT BED PRINTING MACHINES.

APPLICATION FILED MAR. 7, 1904. no MODEL.

7 SHEETS-SHEET 6.

No. 771,924. PATENTBD OCT. 11, 1904. T. M. NORTH.

INKING MECHANISM FOR PLAT BED PRINTING MACHINES.

v V APPLICATION FILED In. 7, 1904. NO MODEL. '1 sums-sum 7.

UNITED STATES Patented October 11, 1904.

PATENT OFFICE.

THOMAS M. NORTH, OF ALTRINOHAM, ENGLAND, ASSIGNOR TO LIN OTYPE AND MACHINERY LIMITED, OF LONDON, ENGLAND, A COMPANY.

INKING MECHANISM FOR FLAT-BED PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 771,924, dated October 11, 1904.

Application filed March 7 1904.

To all whom it may concern.-

Be it known that I, THOMAS MERRIFIELD NORTH, of Kingswood Lodge, Ellesmere Road, Altrincham, Cheshire, England, have invented certain new and useful Improvements in the Inking Mechanisms of Flat-Bed Printing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in the ink-distributing mechanisms, and is particularly applicable to those of reciprocating flat-bed printing-machines.

The old plan of cutting up the ink by placing the distributing-rollers obliquely across the press is admitted to be the best method of distribution, but it is very destructive to the composition rollers, as the ink-plate meets them while they are at rest or revolving in the wrong direction and results in tearing or I wearing them away very rapidly. Various plans have been devised to overcome this difficulty, such as that in the Nliehle press, in which a steel roller is driven in both directions by gearing; but the fault with this plan is that the teeth, which are originally cut straight across parallel with the axis of the roller, have to be filed off from the center toward both edges, thus mutilating and giving them but a small amount of driving-surface, and the obliquity at which the rollers can be set is very limited, owing to the shape of the gears.

The object of the present invention is to produce a mechanism which will drive the rollers perfectly in any position in which they may be placed; and the invention consists in the improvements hereinafter described, and more particularly pointed out in the claims. In the accompanying drawings, which are to be taken as part of this specification and read therewith, Figure 1 is a plan, and Fig. 2 a side elevation, of sufficient of a printing-machine to illustrate the application of the present invention thereto, these figures being partly diagrammatic and the side of the machine represented in Fig. 2 being that which is herein termed the feeder side. Fig. 3 is a side Serial No. 196,916- (No model.)

elevation of the form-inking mechanism, as seen from the feeder side of the machine. Figs. 4 and 5 are vertical sections taken, respectively, on the lines 4 4 and 5 5 of Fig. 3. Fig. 6 is a side elevation of the ink-distributor mechanism, as seen from the side of the machine herein termed the gear side in contradistinction to the opposite or feeder side. Figs. 7 and 8 are vertical sections taken, respectively, on the lines 7 7 and 8 8 of Fig. 6. Fig. 9 is an elevation of the ink-distributor mechanism, as seen from the feeder side of the machine; and Fig. 10 is an elevation of the ink-distributer mechanism, as seen from the right-hand of Fig. 9.

In carrying the invention into efiect in the manner shown in the drawings each of the ink-distributer rollers 1 (of which there are two sets of two each or pairs) is journaled in two sockets 2 3 at its respectively opposite ends, these sockets by their cylindrical stems 4 being carried in socket-holders 5 6, respectively, wherein the said stems are capable of turning each about its respective vertical axis. The socket-holders 5 at the gear side of the machine, as shown more particularly in Figs. 6, 7, and 8, are adjustably secured, as by bolts 7 and nuts 8, to brackets 9, which are themselves horizontally adjustable on a frame 10, rigidly secured to the main side frame 11. The socket-holders 6 at the feeder side of the machine, as shown more particularly in Figs. 9 and 10, are adjustably secured, as by bolts 12 and nuts 13, directly to a frame 1 L, rigidly secured to the main side frame 15. The bolts 7 pass through slots 16 in the brackets 9, so as to enable the socketholders 5 to be adjusted horizontally on the said brackets, and similarly the bolts 12 pass through slots 17 (shown in dotted lines in Fig. 9) to enable the socket-holders 6 to be adjusted horizontally on the frame 14. The brackets 9 are secured to the frame 10 by bolts 18 and nuts 19, of which the former pass through slots 20 in the frame to enable the brackets to be adjusted horizontally to different positions on the said frame.

The two ink-distributer rollers 1 of each set are both in peripheral driving contact with a metal roller 21, the shaft 22 of which at one end is supported in a crutch-bearing 23, fitting in a pocket 24, integral with one of the beforedescribed adjustable brackets 9, as shown best in Figs. 6 and 7. At their opposite ends-viz., those at the feeder side of the machine-the shafts 22 are each supported in a forked swivel-bearing 25, comprising two bearings 26 27, rigidly connected together and to a vertical boss 28, which is bored out to fit and turn freely upon the finished upper portion of a vertical bearing 29, which is made in one piece with the before-described frame 14, as shown clearly at the broken portion of Fig. 9.

On the portions of the shafts 22 situated between the bearings 26 27 there are secured miter spur-wheels 30, each meshing with a miter spur-wheel 31, fast on a vertical shaft 32, rotating in the before-mentioned vertical bearing 29, and each of the vertical shafts 32 is geared by a pair of miter spur-wheels 33 to a horizontal shaft 34, turning in bearings 35, fast to the frame 14, and another bearing 36, Fig. 2, fast to the machine side frame 15.

The type-bed 37 carries a rack 38, which drives a spur-wheel 39, fast on a transverse shaft 40, turning in bearings 41 (of which only one is shown in Fig. 2) in the machine side frames 11 and 15. A second spur-wheel 42, fast on the same transverse shaft 40 and close to the inside of the main frame 15, is sometimes used to drive the ink-rollers 43 of the form-inking mechanisms 44, this being effected, as indicated in Figs. 3 and 5 and diagrammatically in Fig. 2, through interme diate spur-gears 45, which mesh with spurwheels 46, each of which latter is fast upon the shaft of one of the metal distributer-rollers 47, with which the ink-rollers 43 are, as ordinarily, in peripheral driving contact. According to the present invention this second spur-wheel 42 is used also to drive the before described metal rollers 21 and ink-distributer rollers 1, which it does through a spur-Wheel 48, meshing with the said wheel 42 and rotating loosely upon a stud-axle 49, rigidly secured to the form roller frame and through a miter spur-wheel 51, fast to the Wheel 48 and meshing with a companion miter- Wheel 52, fast to the before-described horizontal shaft 34.

The before-described metal distributer driving-rollers 21 are retained in their bearings 23 25 by pins 53, as will be well understood by reference to Figs. 6, 7, 9, and 10.

Each of the before-described socket-holders 5 6 is provided with a set-screw 54, by means of which the sockets or swivel-bearings 2 3, and consequently the ink-distributer rollers 1, may be adjusted vertically according to requirements.

is an ink-fountain; 56, an ink-feed drum; 57, a vibrating ink-transfer roller; 58, an inktable,and 59 an impression-cylinder. All these parts are of ordinary construction, serve for fulfilling their ordinary functions, and constitute no part of the present invention.

To adjust the angle of the rollers 1 21 relatively to the path of the type-bed 37 the nuts 8 19 at the feeder side of the machine and the nuts 13 at the gear side of the machine are loosened and the brackets 9 are moved along the frame 10 until the metal rollers 21 are at the desired angle, after which the nuts 19 are tightened on the bolts 18 to secure the brackets 9 in their adjusted positions. The socketholders 5 are then adjusted on the brackets 9 and the socket-holders 6 on the frame 14 until the necessary parallelism and frictional contact of the

rollers

1 and 21, comprising each set, are secured, after which the nuts 8 13 are tightened to retain all the parts in their adjusted positions. From the foregoing it will be seen that in whatever angle the rollers 21 may be their operative connection with the vertical shafts 32 and horizontal shaft 34 will always be the same, this result being due to the fact that any angular adjustment which the metal rollers 21 receive must always be about the same axes as those of the shafts 32, from which they receive their rotary motion.

I claim- 1. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a bearing capable of turning about the axis of the vertical shaft, a horizontal shaft journaled at one end in the rotatably movable bearing, a pair of miter-wheels operatively connecting the vertical and horizontal shafts together, a roller fast on the horizontal shaft, and ink-distrib uter rollers in peripheral driving contact with the said roller.

2. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a bearing adapted to turn about the axis of the vertical shaft, a horizontal shaft journaled at one end in the rotatably movable bearing, a bearing in horizontal sliding connection with the machine-frame, supporting the other end of the horizontal shaft, a pair of miter-gears operatively connecting together the vertical and horizontal shafts, a roller fast on the horizontal shaft, ink-distributer rollers in peripheral driving contact with the said roller, and bearings for these distributer-rollers, in horizontal sliding connection with the machine-frame.

3. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a forked bearing adapted to turn about the axis of the vertical shaft, a horizontal shaft journaled at one end in the forked bearing, a pair of miter-wheels located within the forked bearing, and operatively connecting the vertical and horizontal shafts together, a roller fast on the horizontal shaft, and ink-distributer rollers in peripheral driving contact with the said roller.

4. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a forked bearing adapted to turn about the axis of the vertical shaft, a horizontal shaft journaled at one end in the forked bearing, a pair of miter-wheels located within the forked bearing and operatively connecting the vertical and horizontal shafts together, a bearing in horizontal sliding connection with the machineframe, supporting the other end of the horizontal shaft, a roller fast on the horizontal shaft, and ink-distributer rollers in peripheral driving contact with the said roller.

5. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a forked bearing adapted to turn about the axis of the vertical shaft, a horizontal shaft journaled at one end in the forked bearing, a pair of miter-wheels located within the forked bearing, and operatively connecting the vertical and horizontal shafts together, a swivel bearing in horizontal sliding connection with the machine-frarne, supporting the other end of the horizontal shaft, a roller fast on the horizontal shaft, ink-distributer rollers in peripheral driving contact with the said roller, and swivel-bearings for the distributer-roller, in horizontal sliding connection with the machine-frame.

6. In a flat-bed printing-machine, the combination of a vertical rotating shaft, a stationary bearing for the said shaft, on the machineframe, a forked bearing adapted to turn on this hearing, about the axis of the vertical shaft, a horizontal roller journaled at one end in the forked bearing, a pair of miter-wheels located within the forked bearing, and operatively connecting the vertical shaft and horizontal roller together, a swivel-bearing supporting the other end of the roller, a bracket in which this bearing is swiveled, said bracket being in horizontal sliding connection with the machine-frame, ink-distributer rollers in peripheral driving contact with the firstnamed roller, swivel-bearings for one end of the distributer-rollers, in horizontal sliding connection with the machine frame, and swivel-bearings for the other end of the distributer-rollers, in horizontal sliding connection with the before-mentioned bracket.

In Witness whereof I have hereunto set my hand in the presence of two witnesses.

- THOMAS M. NORTH. Witnesses:

J. H. J oY, T. R. Gr. PARKER.