Patent GB-148266-A (GB)
Abstract: 148,266. Ehrenreich et Cie, A. July 24, 1919, [Convention date]. Time-printing stamps.-Time stamps of the kind in which the type-wheels are adjusted by means of stepped disks driven by clock-work, have the time-stamp proper separated from the clock-work portion of the device, the arrangement being such that the type-wheels are properly adjusted by inserting the stamp portion into the casing containing the clock-work. The type-wheels, with their adjusting-mechanism, are carried in a casing 23, and the stepped disks driven by the clock-work 1 are carried in a casing 2 having an upward extension 22, in which the casing 23 is pushed to adjust the type-wheels. The minute-shaft 3 of the clock-work 1 drives through a disk 4 and crankpin 7 a shaft 6, on which are mounted three stepped disks 8, 9, 10, disks 8, 9 being fixed on the shaft 6, and disk 10 being loose thereon and driven at the speed of the hour-hand of the clock by gears 11, 12. Disk 8 has on its circumference six equal lugs, each with two steps, disk 9 has six steps, and disk 10 has twelve steps. Co-operating with the stepped disks are three lugs 18 on three slides 14, 15, 16, which are guided on bolts 17 and have upwardly-extending projections 19, 20, 21. Type-wheels 26, 27, 28, for printing unit minutes, ten minutes, and hours, respectively, are loosely mounted on an axle 25 in the lower part of the casing 23, each type-wheel having a cog 29 meshing with a large cog 30, loosely mounted on a shaft 33 and rigid with a small cog 32 meshing with a rack 34 carried by a slide 35. Each of the three slides 35 is provided with a downwardlyprojecting lug 38, adapted to contact with the projections on the slides 14, 15, 16, and is attached to a spring 39 tending to pull it down. Three other slides 40, each having a large recess embracing a cog-wheel pair 29, 30, are connected to a rod 42 passing through the handle 24, and are forced upwards by a spring 43 so that a tooth 41 at the bottom of each large recess engages the cog 29 on each type-wheel, thus normally locking the type-wheels. The handle 24 is rotatable on the casing 23 and has at its inner end a disk 51 carrying a downwardly-projecting rail 52, which is provided at its lower end with a yieldingly mounted bolt 53 adapted to engage a slot 57 having several cavities 58 in the casing 22, said slot 57 connecting with a parallel slot 60 by means of a connecting slot 59. When the casing 23 is introduced into the casing 22, the curved edge of the latter engages a pivoted lever 48, Fig. 2, which strikes a pin 47 on am horizontal slide 46, so that oblique projections on the latter depress small rollers 45 carried by the slides 40, thereby withdrawing the locking edges 41 from the typewheel cogs and releasing the slides 35, which descend to their lowest position and adjust the typewheels to zero. As the casing 23 is further depressed, the lugs 38 on the slides 35 contact with the lugs 19, 20, 21 on the slides in the casing 2, so that the type-wheels are set at the hour and minute corresponding to the positions of the stepped disks 8, 9, 10. When the casing 23 has reached its lowest position, the pivoted lever 48 springs out behind a ledge 61, thus allowing the edges 41 on the slides 40 to lock the type-wheels in set position, and the stamp may be withdrawn from the casing 2 ready for stamping by slightly turning the handle 24 to allow the bolt 53 a free exit from the slot 60.