Patent GB-149255-A (GB)
Title: Device for affixing stamps
IPC: B65C1/02
Filed: 1920-07-12
Abstract: 149,255. Percival, S., (Deutsche Post-und Eisenbahnverkehrswesen Akt.-Ges, (Dapag Efubag)). July 12, 1920. Stamp-applying.-A stamp-affixing machine is provided with a number of rolls of stamps which may be used selectively. The rolls of stamps are put in receptacles 117 in a carriage 48 which is slidable on bars 113, 114, to register the required strip with the feeding and affixing mechanism, by means of levers operated by a hand-crank 86; a bar 89 slides with the carriage, which is locked in position by inserting a lever 53 in one of a number of slots 90 in the bar. The carriage is removable by raising a forked slide 115 out of engagement with the bar 114. A hand or motor driven shaft 4 operates the machine. A toothed sector 33, Fig. 3, on the shaft 4 rotates the stripfeeding segment 46 through gearing which is adjusted at each operation by a detent 38. A roller 49 which co-acts with the feeding segment 46 is normally held out of contact therewith by the setting-lever 53, but when this is inserted in a slot 90 the roller is lowered. The feed of the strip is determined by two rows of pins 62, 64, which are depressed against the action of springs by a pin 63 on the sector 33 striking a slide 60. The end stamp of the strip is severed by a cutter 55, Fig. 3, which is actuated by a spring when its carrier 58 is released from its lifting-cam 56 on the shaft 4. Rollers 68, 69, Fig. 5, partly feed the severed stamp beneath the affixing-plunger 20, this movement being completed by a finger 70. This finger is pivoted to a slide 71 and is actuated by its tail 76 striking a fixed stop 77 when the slide is depressed by a pin 74 on the sector 33 striking a spring-supported member 73 on the slide. Water is applied to the stamp by the feed-roller 68, which rests on a spring-supported pad 80 in a receptacle supplied with water from a tank 84, Fig. 2, through removable packed tubes 85, 83. The severed stamp is held beneath the affixing- block 21, Figs. 8 and 9, by fingers 25 which tend to move outwards under the action of springs 24, but are held by a bar 27 carried by a slidable rod 30. When the rod 30 strikes the matter to be stamped the bar is raised and the stamp released immediately before it is affixed by the block. According to a modification shown in Figs. 13 and 14, the stamp-retaining fingers 131 are formed on wings 119, 120 pivoted together at 121 and freely supported by pins 123 which project from the affixing-block 122 and engage cam-slots 125 in the wings. When the wings are raised by striking the matter to be stamped, they separate to release the stamp. The middle part 129 of the block is projected by a spring from the face of the block to affix the middle of the stamp before the ends. The affixing-plunger is provided with rack teeth with which engages a wheel 18, Fig. 2, actuated from a wheel 10 connected to an oscillating disk 8 by a coiled ribbon spring 9 which allows lost motion when the affixing- block strikes the surface to be stamped. The disk 8 is oscillated by a cam 6 on the shaft 4. The setting-lever 53 is pivoted at 97, and has pivoted to it a bar 95 which carries at one end a finger 96 adapted to rest on the stamp strip, the other end being pivoted to an arm 100. At each rotation of the shaft 4, a pin rotating therewith rocks the arm 100 to actuate both a totaliz. ing-counter 105 and the individual counter 107, Figs. 2 and 6, for the particular stamp strip in use. When any stamp strip is exhausted, the finger 96 drops and lowers the arm 100 so that it can. not actuate the counters. The feeding and the cutting devices are readily removable from the machine without the use of tools. According to a modification shown in Fig. 16, the setting-lever 135 pivotally carries a system of levers 138, 145 to which is attached the finger 137 adapted to rest on the stamp strip, the lever 138 being provided with a projection 139 which is adapted to engage in a notch in a locking-disk 142 on the driving-shaft 143 and so prevent the actuation of the machine when a strip of stamps is exhausted and the finger 137 falls. The stamp cutter 164 is actuated from a countershaft 161, and a crank disk 155 on one end of the shaft 143 actuates the counters through links 157, 160.