Patent GB-191118729-A (GB)
Title: Improvements in Machines for Printing Addresses and other particulars on Papers, Wrappers, or the like, and for analogous purposes.
Inventor: CRABB ALFRED PHILLIPS
IPC: B41L47/58
Filed: 1911-08-19
Granted: 1912-08-15
Abstract: 18,729. Crabb, A. P., and Battey, A. P. Aug. 19. Addressing and like machines; stopping and throw-out arrangements. -A machine for printing addresses and other particulars on papers, wrappers, &c., is so constructed that the printing of the address or some part of the address may be prevented when desired by means of feeler mechanism controlled by notches or projections in or on the address &c. plates, the printing operation being either stopped completely or a guard being actuated to cover up a portion or the whole of the address &c. As shown in Figs. 1 and 3, the address plate 22 on its way to the printing position remains stationary temporarily in the position shown in Fig. 1, and a contact-maker 34 adjustable laterally on rods 35 is carried by flexible arms or springs 36, which are depressed by projections 37 on the inking-apparatus 4. If the address plate 22 is provided with a metal projection 132, or a slot arranged to come above a metal plate provided below, the contact-maker 34 completes an electrical circuit to an electromagnet 21 which then attracts an armature 20 on a lever 19, which thereupon releases a lever 16 freely mounted on a shaft 14, and this lever being heavier than a similar lever 15 connected to it by a spring 17, the lever 15 is moved to such a position that it can act on a spring- controlled pawl 9 carried by a driving lever 1, which normally oscillates and actuates the inking-apparatus 4 by means of a bell-crank 2, 3, secured to the lever 1. The pawl 9 is normally kept clear of a pin 13 on a bell-crank 12, 6 freely mounted on a shaft 5, but when the lever 15 acts on the pawl 9 it causes a recess 28 in the pawl to engage the pin 13, and the bell-crank 2, 6 is moved so as to actuate a rod 7 which moves a cam-plate 31, and this causes a spring- controlled guard plate 8 to be moved over a part, or the whole, of the address plate when in the printing position, and so printing does not take place from the portion of the plate covered by the guard 8. The arm 6 of the bell-crank 12, 6 is connected to a rod 23 with a projection 25 which re-sets the levers 16, 15 to normal position. In a modified form of device, a mechanical feeler mechanism replaces the electrical one, and the pawl 9<a>, Fig. 8, on the driving-lever 1<a>, is arranged to pull the bell-crank 6<a>, 12a instead of push it. The feeler in this case comprises bell-cranks 38 mounted on the springs 36 and connected by a rod 39 on which is an adjustable finger 40. When this finger 40 contacts with a projection 132 on the address plate, a connecting-rod 41 actuates a lever 19<a> which normally holds counterweighted levers 16<a>, 15<a> which control the pawl 9<a>. This pawl thus actuates the bell-crank 6<a>, 12<a> as in the first-described modification, and a third arm 42 on this bell-crank actuates a roller 44 on a lever 45 which is thus moved to trip the platen of the press. The lever 45 may be actuated by hand if desired, and operates trip mechanism of known kind. Trip devices as described above may be combined in one machine, but electrical feelers are used in connexion with both mechanisms. The address plates are in this case fitted with slots in different positions according as it is desired to trip the press entirely, or cover up part of the address plate, for example in the case of a subscriber who is away from home.