US663864A

US663864A - Collotype or similar printing machine.

Info

Publication number: US663864A
Application number: US72769299A
Authority: US
Inventors: Alfred Coe
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-08-18
Filing date: 1899-08-18
Publication date: 1900-12-18
Anticipated expiration: 1917-12-18

Description

No. 663,864. Patented Deb. I8,vl900.'

A. CUE. CULLOTYPE 0R SIMILAR PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

4 Sheets-Sheet (No Model.)

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Patented Dec. 18, I900.

A. CUE. COLLOTYPE QB SIMILAR PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

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No. 663,864. Patented Dec. l8, I900;

. 'A. CUE. CULLOTYPEDRSIMILAB PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

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No. 663,864. Patented Dec. l8, I900. A. 60E. C OLLOTYPE 0R SIMILAR PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

4 Sheets-Sheet 4.

(No Model.)

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ALFRED COE, OF BRADFORD, ENGLAND.

COLLOTYPE OR SIMILAR PRiNTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 663,864, dated December 18, 1900.

Application filed August 18; 1899. Serial No. 727,692. (No model.)

To all whom it may concern:

Be it known that I, ALFRED COE, a subject of the Queen of England, residing at Church Bank, Bradford, England, have invented a certain new and useful Improvement in Collotype or Similar Printing Machines, of which the following is a specification.

This invention relates to improvements in apparatus or machines for that class of printing in which it is necessary to apply two inks of different consistency, such as what is generally known as collotype-printing, and its primary object is to increase the speed.

To fully describe my invention, reference is made to the accompanying sheets of drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in each of the views.

Figure 1 is a side elevation of my improved machine. Fig. 2 is a plan view of the same. Fig. 3 is a view of the feed end of the machine, and Fig. 4 is a view of the opposite end. vIn the three latter figures the feed-table and the top inking-slab, hereinafter referred to, are omitted, so as to show the parts beneath. Fig.5 is a detail elevation, and Fig. 6 a detail plan, of the means for rotating, shaft 47. Fig. 7 is a central longitudinal section of the machine.

While I have referred to two inks, in reality the same ink is used for both sets of rollers; but as the ink is mainly supplied to the second inking-rollers, at any rate when the machine is in full operation, from the 00110- type-plate itself and becomes thinner by working it is generally termed the thin inking.

Strictly speaking, it would be betterto define the machine as a machine in which two sets of inking-rollers are employed of different material. The first rollers are generally covered with leather, and gelatin or india-rubber rollers are generally used for the second inking.

The cylinder 2 is arranged and operated in a similar manner to an ordinary cylinder printing-machine. It only rotates when the carriage is moving in one direction, and the sheet is fed by hand at the commencement of this stroke and is taken off as soon as it has passed beneath the cylinder.

To carry out my invention I employ an ordinary cylinder 2, fit-ted with the usual grippers for'laying hold of the paper, which is fed onto a feed-table 3 and the front edge passed between the grippers before they are closed in the ordinary way. The cylinder 2 is actuated by its spur-wheel 4t engaging the rack upon the reciprocating carriage 6, having an inking-slab 7 at the feed end charged with ink for the second or light inking and a slab 8 at the other end charged with ink for the first inking. The carriage is reciprocated in guides 9 in the side frames 10 by the Vibrating arm 12, the upper end 13 of which is pivoted between the lugs 14 14 on the carriage and its lower end is pivoted to the arm 15 on the rocking shaft 16 below. The arm 12 is reciprocated by the arm 11, to which it is coupled by the connecting-rod 17. The arm 11 is rigidly mounted upon a rocking shaft 18, which is rocked in one direction by the antifrictionroller 19 on the arm 11 engaging the cam 20 on the shaft 21, and it is rocked in the reverse direction by the cam 22 on the same shaft engaging the antifrietion-roller 23 on the arm 24, also rigidly fixed upon the shaft 18. Instead of employing two cams a box-cam may be used to engage the roller 19 and reciprocate the carriage in both directions. In any case the cams are constructed to give a dwell in the movement of the carriage at both ends of its stroke sufficiently long enough in dura tion to allow the inking-rollers to pass over the plate while it is stationaryin the manner hereinafter described.

The plate is fixed by quoins or wedges in a metal holder which fits between the inking slabs 7 and Sand is capable of vertical adjustment by the corner-screws 25, upon which it rests. The first inking-rollers 26 are mounted in slides 27 on each side, which are reciprocated in the grooves 28 in the top of the frames by the links 29, coupling them to the top of the arms 30, mounted upon the rocking shaft 31 and vibrated by the connectingrods 32, connecting them to the cranks 33 upon the intermit-tently-rotated shaft 34. The broken lines and 30 Fig. 1, represent the arms 30 in mid-stroke and at the opposite end of their stroke. The shaft 34 is operated by the sector-wheel 35 on the shaft 21 engaging the wheel 36, and a plain part 37, free from teeth, is provided upon such sector-wheel to engage the locking-piece 38 on the wheel 36 and hold such wheel stationary until the plain piece is passed. The wheels are so arranged that when the dwell takes place the rollers 26 are close up against the cylinder 2. When the plate passes from beneath the cylinder on that side, it receives its first inking by passing in contact with the rollers 26, then lying close to the cylinder. During the dwell at the end of this stroke of the carriage the arms 30 are vibrated and the rollers are passed to and fro over the plate and are then brought to rest again close to the cylinder and the carriage again moves the plate .beneath them. When the plate appears on the other side of the cylinder, the rollers 40 for the second in king move toward it, and by the time the plate is brought to rest at the opposite end they have moved completely over it and are close against the cylinder. While the plate dwells at this end the rollers 40 are passed quickly to and fro over it, and when the plate commences its return movement the rollers move slowly over it and back onto their inkingslab 7.

The rollers 40 are mounted in slides 41, working in the guides 28, and are coupled by the links 42 to the top of the arms 43 on the rocking shaft 44. The arms 43 are vibrated by the continuously but variably rotating cranks 45, coupled to them by the connecting-rods 46. The shaft 47, upon which these cranks are fixed, is variably rotated by the arrangement separately shown in elevation in Fig. 5 and in plan by Fig. 6. The sectorwheel 50 on the shaft 21 engages the spurwheel 51 on the shaft 47 and drives it to impart the slower motion thereto; but as soon as the sector 50 disengages the Wheel 51 the sector 52 engages the pinion 53 on the shaft 47 and imparts a complete revolution to it at an increased speed before it becomes disengaged therefrom and the sector 50 and the wheel 51 again become engaged. The rollers 40 are shown at mid-stroke, and the broken lines 40 and 40, Fig. 1, represent the arms 43 at each end of their stroke.

Jockey-rollers and distributing-rollers 61 are preferably mounted over the rollers 26, and these are arranged at each stroke to come in contact with an inverted inking-slab 62,

supported by the adjustable studs 63 from the attachments 64,secured to the side frames.

A flexible mask is used, and it is not attached to the cylinder, but is supported upon a flexible band 70, Fig. 1, on each side. The ends of these bands are connected to two spring-rollers 71 and 72, fitted with internal spiral springs under torsion, and the spring of the roller 71 is either stronger or is under greater torsion than that of the roller 72. Flexible bands 73 are also Wound upon the roller 71 in the opposite direction to the bands 70, and their free ends are carried around the guide-pulleys 75 and connected to the end of the carriage 6. When the carriage travels in the direction of the arrow, Fig. 1, the bands 73 turn the roller 71 in the direction of its arrow. Consequently the' bands are unwound off 71 and arewound onto the roller 72, thus carrying the mask with it; but on the reverse movement of the carriage the bands 73 are free to move with it and are rewound on the roller 71, and at the same time the bands 70 are drawn off the roller 72 and wound onto 71 by reason of the stronger spring of the latter, thus moving the mask at the same speed as the carriage and cylinder.

The side frames 10 are connected together by stays 80. The shaft 21 is driven by its spur-wheel 8.2 engaging the pinion 83 on the driving-shaft 84.

I claim- 1. In a printing-machine of the type specified the combination with a reciprocating plate-carriage having an inking-slab at each end and reciprocated in such a way that there is a period of rest at each end of its stroke, of inking-rollers constructed and arranged to move over the plate each time it is brought to rest, substantially as herein shown and de scribed.

2. The combination with the reciprocating inking-rollers of jockey-rollers and distributin g-rollers and an inverted inking-slab against which they come in contact while being reciprocated over the plate.

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

ALFRED 00E.

Witnesses:

DAVID N OWELL, SAMUEL DRAOUP.