Patent GB-190423571-A (GB)
Title: Improvements in Laundry-marking Machines.
Inventor: HUME THOMAS JEFFERSON
Filed: 1904-11-01
Granted: 1905-02-23
Abstract: 23,571. Hume, T. J. Nov. 2, A.D. 1903, [date applied for under Patents Act, A.D. 1901]. Type-writers &c.-A, laundry-marking machine is constructed with a keyboard and a series of type-discs for setting up a line of type, from which one or more impressions are taken before restoring the parts to normal position. A hand-set, privatemark type-disc may be added. The machine is shown in side elevation in Fig. 4, the side of the casing and all but one of the keys being omitted. Type-discs 14, Figs. 4 and 7, are loosely mounted on a shaft 13, and are retained by means of ratchets 16 and spring pawls 24 against the rotating action of springs 18. Spring-elevated keys 28 are disposed in inclined or spiral arrangement in guide-plates 12, 27. Each type-disc 14 is provided with a stoplug 33, and each key 28 is connected to a radial stop-plate 32. The stop-plates 32 also depress a frame 34, 36 against the action of springs 39. The frame 34, 36 is guided over the shaft 13 and by means of slots and pins, and is connected with levers 42 carrying a rod 43. A pawl-releasing dog 44 is forked over the rod 43 and secured on a rod 45, which is free to oscillate, and is movable longitudinally within the limits of stop-collars 47, a spring 48 tending to advance the rod. The dog 44 and a spring-pressed secondary dog 52 co-operate with a ratchet 51, by which means the dog 44 is advanced step by step along the series of pawls 24. In order to skip one or more pawls 24 for wordspacing &c., the ratchet 51 is arranged for oscillation on arms 54, one of which is spring-pressed against a stop-pin 58 and provided with a fingerpiece 56. The type-discs 14 are returned to normal position by means of a hand-crank and a spring- retained yoke 60 both fast on the shaft 13. A lug on the yoke 60 is arranged to engage an arm 68, which is connected with a lever 70 for returning the sliding rod 45. Some of the keys 28 bear both letters and numerals, and the character adjusted depends on the position of the dog 44, there being two kinds of type-discs 14. A private-mark typedisc 133 is mounted for setting by means of a series of holes and a spring pin. An oscillating ink-pad frame 88, Figs. 4 and 5, guided by means of a pin 90 and ribs 91, is actuated by means of a two-part link 86 and a tappet 79 pivoted on a spring-retained detachable yoke 75, from a lever 99 on a rock-shaft 93 operated by hand or treadle. The ink-pad comprises a block 104 provided with an ink-carrying facing, and has a sliding connection on a rod 107 by means of a groove and spring-connected latches 108. The pad is gradually fed across the frame 88, against the action of a spring 112, by means of a pin 115 and a double cam 113 having a ratchet 114 engaged by a pawl on the yoke 75. An ink spreading and supplying pad 118 is pivoted in a detachable pivoted arm 119. The facing of the pad 104 is, preferably, grooved near the forward edge, so that any surplus ink is not rubbed forwards between the pads A platen 123, preferably a strip or block of rubber, is carried by a yokeshaped pivoted frame 124, which is lifted by means of a pin 101 on a short arm 100 of the lever 99, and, preferably, a second pin on the opposite side, on a crank-arm on the shaft 93. Springs 132 may receive the impact of the pins. A rigid arm on the platen frame returns the yoke 75 should the yoke spring fail to do so. A slotted shield 127 is carried above the platen by an arm 129 secured to a pivoted yoke 130 and resting, normally, upon the shaft 93. A spring-retained, pivoted locking-plate 139 engages over a pin 142 on the platen frame, and is formed with a face-ptate 144, against which the article to be printed is pushed, so that the platen frame is released.