Patent GB-234972-A (GB)
Title: Improvements in and relating to addressing machines
IPC: B41L45/00
Filed: 1924-05-06
Abstract: 234,972. Woosnam, A., (Smart, R. B.). May 6, 1924. Addressing-machines.-An addressing-machine for printing from type-bars is provided with a guideway for receiving the type-bars, means for feeding the whole of the type-bars forward in procession step-by-step, a laterally-operating feed mechanism for moving a selected type bar or bars transversely of the procession and into printing position, and means for regrouping the type-bars in another intermittently-moving procession. The type-bars C, Fig. 2, are inserted in a guideway B from a galley and are held between a member E<3> and a block J<2> on the end of a rod J having a resilient connection J<3> with an upturned part D<14> on a rod D, Fig. 4. A screw-threaded rod E and thumb-screw E<1> mounted on the side of one of the guides B serve to move the member E<3> and thus limit the. forward movement of the type-bars in the guide-way and adjust an opening E' through which one or more type-bars are passed to printing position under a vertically reciprocated impression head G. The type-bar or bars to be printed from are separated from the rest of the type-bars by a. reciprocating member F having a projection F<1> engaging the type-bars and moving them across the end of the guideway, a second projection F<2> serving to feed the typebars after the printing operation to a platform F<3> from which they are delivered past side springs F<6> to a galley F<4>, by a reciprocating block F<5>. For its return stroke, the member F is moved away from the end of the guideway. The impression head G is attached to a crossbar G<1> supported by vertical rods G<5> carrying a second crossbar G<6>, Fig. 4, at their lower ends. A rod G<8> is secured to the bar G<6> and passes through a fixed yoke G<7> to a. treadle, by means of which the impression head is depressed, a spring G<10> extending between the bar G<6> and yoke G<7> normally keeping it raised. A rack H attached to the bar G<6> engages a pinion H<1> connected through a crank H<2> and links H<3>, H<7> to the member F so as to reciprocate the latter as the impression head is reciprocated. Pins A<2> on the member F are guided in recesses A<3>, A<6>, A<7> in the machine table A and the member F is connected by a link A<12>, pivoted lever A<11>, and link A<10> to a head A<13> slidably mounted on a rod A<9> between two springs A<4>, A<5>. At the end of the feed movement of the member F, the spring A is compressed and the spring A<5> is extended so that the springs pull the member away from the guideway B when the pins A<2> reach the recesses A<6>, and allow it to return with the pins in the recess A<7>. At the opposite end of the reciprocation, the reverse action takes place. The block F<5> delivering the bars to the galley F<4> is reciprocated by a link K attached to one of two arms D<4> carried by a. shaft D<2> rocked by the movement of the impression head G through links D<3>, D<5> connecting the shaft D<2> to the crossbar G<6>. The second of the arms D<4> is connected by a link D<7>, slide D<8>, and links D<10>, D<11> to a stirrup D<12> sliding on the rod D carrying the part D<14> with which the rod J is connected. The end D<13> of the link D<11> is adapted, on the movement to the left of the slide D<8>, Fig. 4, to co-operate with the stirrup D<12> and grip the rod so as to feed the type-bars forward against the member E<3>, through the part D<14>, spring J<3>, and rod J. A spring catch limits the backward movement of the rod D. Impression surfaces and adjustments.- The impression head G comprises a rubber pad G', Fig. 6, secured to a block G<2> by a dovetail rib G<13> and clamping-member G<15>, and is adjusted by means of thumb-screws G<4>.