Patent GB-531801-A (GB)
Title: Improvements in or relating to address printing machines
IPC: B41L47/58
Filed: 1939-08-02
Abstract: 531,801. Addressing-machines. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. Aug. 2. 1939, No. 22435. Convention date, Aug. 2, 1938. [Class 100 (ii)] In a printing-machine of the kind in which printing-devices are fed from a magazine M, Fig. 2, in sequence to a position II beneath a platen P and pass through a position I where control means effectoperative function of the machine in response to the presence of tabs, perforations, or at selected positions on the printing-devices, the sensing members such as pins 85, 86, 86<SP>1</SP>, Fig. 3, which co-operate with the tabs &c. are arranged so as to be capable of responding to a group selection of the tabs, or to an individual selection, and the action of these two selections may be overriden by an individual selection which suppresses the two former selections. The printing-devices are fed by pawls on a reciprocating rod operated by lever-and-link mechanism from a main rocker 2, and the platen P is operated by a swinging cam groove 18 on a lever 3 which is operated by a pivoted pusher 20 on the lever 2 when set by means of a roller 26 so that the pusher can engage a pad 19 on the arm 3. The means for controlling this engagement comprises a lever 25 controlled by a spring-controlled bell-crank lever 28, which, when set so that the roller 26 engages a recess 22 on the pusher, permits operation of the platen, but when the roller engages a shoulder 23 the pusher is idle. This mechanism is similar to that described in Specification 372,514, and the lever 28 is dependent upon the setting of a pivoted member 35, fitted with plates 36, 37 capable of restraining a lever 32, or of permitting it to move back to its position shown in Fig. 2 after it has been freed from the action of a pawl 46 carried by the rocker 2. This pawl acts on a pad 47 on the lever 32 to move it counter-clockwise. The member 32 is controlled by a rod 43 which can be set to engage either a shoulder 42 on, or a recess 41 in, a lever arm 39 on the member 32, and " positive " or " inverse " controls are effected by movement of the rod 43 according to this setting. The rod 43 is bifurcated at the top to form members 95, 96, Fig. 3, of which 96 is at a higher level than 95. Co-operating with the members 95, 96 are levers 61, 57 carried by a pivoted bail 50 which is oscillated by a rocking pawl 49 acting on a plate 51 and moving the bail against the action of a spring 93. The bail 50 operates a pivoted bridge piece 60 by means of a spring 52, Fig. 13, and the bridge piece carries a detachable pin-bar 70 in which are mounted a group of pins 85, an individual pin 86, and a long pin 86<SP>1</SP> which are set to coact with tabs at corresponding positions on the printing-devices, and may operate in various ways to control the printing operations and other operations such as a signalling-device. The pins 85 are received in rectangular grooves 73 in the bar 70, Fig. 7, and normally the heads 87 of the pins engage notches 84 in a spring-pressed bar 80, or, if two groups of pins 85 are used as in Fig. 11, two bars 80a, 80b may be used. When a printing-device fitted with tabs corresponding to all the pins 85 of a group is in position I, a bar 80 is released and is moved so as to cause a projection 83 to'move the lever 57 over the member 96, and on return of the bail 50 the rod 43 is depressed to such a position that the control member 35 permits the lever 28 to cause the pusher 20 to be in operative position, and an impression is obtained when the printing-device reaches position II. The pin 86 is not so high as the pins 85, and this pin can be arranged at a desired position and may be set so that if there are no tabs corresponding to the pins 85 and the lever 57 is not positioned over 96, the lever 61 will be depressed to an extent which causes the control member 35 to permit a printing-operation. The printing can thus take place if tabs corresponding to either a group or a single pin are in position. The pin 86 can be reversed in position in the bar 70 and is so constructed that it then prevents movement of the bar 80, so that the group selection is cut out, but single selection is still effective. When a tab acts on the long pin 86<SP>1</SP> the lever 57 is inactive and the lever 61 does not depress the rod 43 sufficiently far to permit the control member 35 to be moved to operative position. In Fig. 11 the bars 80a, 80b are fitted with projections 83a, 83b either of which can operate the lever 57. Specifications 372,337 and 375,113 and U.S.A. Specification 1,209,414 also are referred to.