Patent GB-190320138-A (GB)
Title: Improvements in Plate Printing and Embossing Machines.
Inventor: EATON WILLIAM SYLVESTER
Filed: 1903-09-18
Granted: 1903-12-31
Abstract: 20,138. Eaton, W. S. Sept. 18. Embossing; printing from engraved plates.-Relates to machines in which the bed 3 carrying the die or plate 37 is pivoted at 5 to the platen or matrix support 6, and the sides 2 of the bed are connected to the frame by links 4, 18, and operated by rods 15 connected to crank-pins on wheels 9, 13 on a shaft 10 ' geared to the driving-shaft 8. When operated to make an impression, the bed 3 and platen come together in a vertical position. The plate is inked by a roller 27 on a shaft 26 movable in slots 28. As the bed moves to the impression, the bed and extensions 29 thereof raise the shaft 26, after which it is moved along the inclined parts of the slots 28 by slotted arms 30 pivoted at 31 and having extensions 32 engaged by the pivot shaft 16. The shaft 26 is moved into recesses 33 in the framing, and the roller then rests on a supply roller in an ink fountain 19. The supply roller is driven by a band and pulleys 22, 23, and a gear - wheel 35 on the shaft of the supply roller gears with a wheel on the shaft of the inking-roller. When the roller moves down into the inking position it is driven by a gear-wheel driven by a baud and pulleys from the shaft 24. To prevent the roller from inking the edges of the plate, pieces are adjustably fixed on the sides of the bed and engage rollers or enlargements on the shaft 26 to prevent the roller from coming into contact with any except the desired parts of the plate. The plate is wiped by means of a roller 43, the shaft of which is movable in slots 45, and is connected by rods 46 to weights 47 on arms 48 pivoted to the framing. Paper 50 passes from a roll 52 round a guide roller 54, round the roller 43, up round a roller 55, and round a corrugated or fluted roller 61 to a winding roll 58 on a shaft 59. The paper is drawn round the roller 43, during the wiping operation, by a ratchet arrangement consisting of a pawl-plate 64 which grips the paper on to the grooved roller 61 and rotates the roller. The pawl 64 is on a pivot shaft in arms 65 of the shaft 57 on which is another arm 68 engaged by a cushioned projection 70 of a rod 71 mounted to slide in guides 72, 73. The downward movement of the rod is limited by an adjustable collar 74, and a cushioned stop 75. The rod is moved up by a lever 105 operated by a cam 78. A spring 66 pulls the pawl 64 into engagement with the roller, and a spring 79 returns the arms 65 &c. The spring 79 is connected to a chain 80 passed round a sprocket-wheel 81 on the shaft 59, and connected to an arm 82 on the shaft 57. The sprocket-wheel 81 drives the roll 58 to wind the paper, through an arrangement of ratchet and friction gearing. The roll 52 is connected through a friction disc arrangement with a pulley driven by a band 87 in the opposite direction to the feed movement of the roll. Fingers 84 engaging in grooves in the roller 61 detach the paper if it adheres to the roller. A rod or roller 98 in vertical slots 97, prevents the wiping-paper from coming into contact with the inking-roller. The usual gripper fingers 101 are provided for holding the sheets