Patent GB-465985-A (GB)
Title: Improvements in feed mechanisms for addressing and like series printing machines
IPC: B41L47/24
Filed: 1936-05-20
Abstract: 465,985. Addressing and like machines. UNITED AUTOGRAPHIC REGISTER CO. May 20, 1936, No. 14320. Convention date, June 7, 1935. [Class 100 (ii)] In an addressing or like series-printing machine having a mechanism for feeding printing-plates in series into printing position, a feed mechanism for advancing successive lengths of continuous form stationery strips into a position above the printing-plate which is in printing position, and driving means for actuating the mechanisms intermittently and in a timed relation, the strip-feed mechanism comprises movably mounted register pins which are adapted to engage perforations provided in each form length of stationery and to feed the strip forward and to retain it in alignment during actuation of the feed mechanism. The machine has a vertical shoot B for a series of printing-plates, a presser arm C for pressing the stationery 60 into engagement with an underlying printing-plate, platen rolls D adapted to be reciprocated across the top of the stationery while the latter is on the printing- plate, a receiving tray E for printing-plates after they have been fed through from printing position, and a feed mechanism F, driven by a motor J, for feeding the printing-plates to the tray E and for intermittently operating the devices C and D. Removably mounted in the table 21 of the machine is a frame comprising a holder G for the stationery, a rigid guide roller 41, and a guide roller 43 (not shown) mounted in pivoted arms which can swing against the action of springs, both guide rollers and the holder being transversely adjustable. A feed mechanism H for the stationery 60 is removably mounted on a cross-bar 51 provided on the front edge of the table 21 by wing bolts. The mechanism consists of two arms supporting a rotatable shaft 54 on which are secured a pair of hub members having radial arms 58 with pins at their extremities adapted to engage perforations in the stationery. The stationery is guided between curved guides 66 and 71 arranged about the shaft 54, and an intermediate curved guide acts as a stripper for stripping the stationery off the feed pins. The shaft of a guide roller 64 has anchored thereto a flat rearwardly extending guide plate 69 and the outer curved forwardly extending guide plate 66 ; a further guide plate is arranged between the roller 43 (not shown) and the plate 69. The pin-wheel shaft 54 engages by a pin- and-slot connection a socket member having an extension journalled in a fixed plate 82 and provided with a gear-wheel 83 meshing with a gear-wheel 84 mounted on a shaft 85 also in the plate 82. The socket member is provided with slots adapted to be engaged by a bolt on a slide which is controlled by a cam 95. The cam 95 is rotatably mounted on the shaft 85, carries a pawl adapted to operate a ratchetwheel 93 secured to the gear-wheel 84, and is oscillated by an adjustable link 100 connected to a rotating crank 18. Oscillation of the cam 95 first withdraws the bolt from the socket member, and on the return the pawl engages the ratchet-wheel to rotate the gear wheels 84, 83, and consequently the pin-wheel shaft 54. The shaft 54 is continuously braked by a member surrounding the shaft and having two limbs which are held together by a screw.