Patent GB-691704-A (GB)
Title: Improvements in or relating to a sales slip printing apparatus
Inventor: JANKE EDWARD JOSEPH
IPC: B41L45/02
Filed: 1951-02-02
Abstract: 691,704. Printing-machines. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. Feb. 2,1951. No. 2633/51. Classes 100(ii) and 100(iv). Addressing and like machines; cylinder machines. -A machine for printing sales slips from nameprinting plates adapted to be removably supported on the machine base comprises at one end of the base a head, supporting the printing mechanism proper, hingedly mounted for manual rocking movement toward and away from the printing plate, the head being constructed as a hollow rigid housing of such width, in the direction parallel to the axis of the hinge connection, as to accommodate a platen roller of the printing mechanism, and actuating linkage therefor, between side plates forming part of the housing. A platform 25, Figs. 1 and 3, on which a sales slip to be printed on may be disposed has an anvil 140 in a recess in the platform, the anvil being adjusted by levelling screws 145. On the anvil is placed a selected one of a series of customers' tokens or printing devices from which an impression, such as an address is to be made on the slip. Four further impressions are printed on the slip; first the nature of the sale, such as " Cash ", " C.O.D.", from a block 150 with four type faces, any one of which can be brought into printing position by rotating a handle 152 on a shaft 151, a leaf spring acting on a square part of the shaft to retain the selected surface in position; second and third, the department number and date by means of loose type 156 inserted in a holder 155; fourth a clerk's codenumber from a type number 165 manually slidable into position on the platform. A printing head H is pivoted on a shaft 28A in an eccentrically bored sleeve 28B supported in lugs 32 of the platform. By rotating the sleeve, the height of the pivot is adjustable, being secured by a screw 28S. The head is urged by torsion springs 45 to an upper inclined inoperative position, and comprises two side plates 35A, 35B secured together by spacer rods 36-40, and a casing 34, arcuate slots 122 in the plates engaging a pin 120 on the lugs 32 to limit this movement. A platen roller P is carried .on the head on a shaft 47 having guide wheels 48 on each end, and when the roller moves through a printing stroke the wheels 48 run on guide surfaces 49A, 49B on the side plates, being held against the surfaces by flanges 49F of retaining members 49R. The platen roller is reciprocated horizontally by means of a handle 30 pivoted to the rod 39, which rocks a rocker pivoted to the rod 40 and comprising side plates 50 with slots 51 engaging the shaft 47. Strong springs 57 urge the platen roller to the left in Fig. 3. When the handle 30 is lowered, it first lowers the head into contact with the platform and then operates the platen roller, since the springs 45 are relatively weak. In another form, not shown, the springs 45 are omitted, and a tension spring is provided between the rod 36 and a pin on one of the lugs 32, which is not strong enough to raise the head but is strong enough to retain it in its upper position when manually raised. Ink-ribbon inechanisin.-An inked ribbon IR, Figs. 1, 3 and 5A, runs between spools 62F, 62R, and is guided by the rods 37, 38 beneath the platen roller and over the sales slip and printing device. In the side plate 35A a hub 65A is rotatably mounted and secured thereto is a shaft 73. The spool 62F is passed round the shaft on to the hub and engaged by a pin 70. A hub 65B enters the other end of the spool. The spool 62R is similarly mounted. The hubs 65B are positioned in recesses in the plate 35B and are carried on a bar 75 located on the plate 35B by pins 78 and secured by a screw 80. By removing the bar and the hubs 65B, the spools can be removed and replaced. A plate 90 having slots 91, 94 is guided for vertical movement by studs 95, 96 on the plate 35A, and is automatically lowered when the head is lowered by means of a bell-crank 115 engaging the pin 120. Pivoted to the plate 90 at 101 is a plate 100 carrying pawls 110F, 110R urged apart by a spring 112 into engagement with ratchet wheels 67F, 67R on the hubs 65A. The plate 100 is held in one of two positions by notches 102 engaging a detent roller 103 on the plate 90 urged downwards by a spring 108. Lugs 113F, 113R on the plate 100 limit the movement of the pawls, so that only one pawl engages its ratchet, and when the plate 90 is lowered, the ribbon is advanced. When, for example, the spool 62F is exhausted, the ratchet 67R cannot rotate, and when the plate 90 is lowered, the pawl 110R pulls the plate 100 into the other position to reverse the ribbon feed. Printing-surfaces.-A printing device D, Fig. 12, of embossable sheet metal has characters, such as an address, embossed on its raised front face, to form a positive relief printing-surface. The edges 131 of the marginal portion are bent backwards to retain an identification card 132. Notches 134, 135 serve to indicate what town and firm the device is designed to be used by, and to locate the device on the platform 25 which has pins for that purpose. A removable type carrier 155, Fig. 3, is secured to a sheet metal bracket 157 by pins 158, which extend downwardly into locating openings in the platform 25. The carrier 155 is an elongated block having an upwardly opening T-slot to receive the shanks of individual type members 156.