GB949019A - Marking apparatus - Google Patents

Abstract

949,019. Selective printing. ADOLPH GOTTSCHO Inc. Oct. 9, 1962 [Oct. 27, 1961], No.38139/62. Heading B6F. [Also in Division F2] A marking device for imprinting an intermittently advanced web material or flattened tube W, Fig. 1, by pressing a hot roll leaf stamping tape T, against the latter, comprises a housing 18 supported on a support bar 26 by a bracket 22 attached to a top plate 20 of the housing and a heated type-holder 40 mounted for reciprocating movement on arms 58, 72, Fig. 2, pivotally attached to axles 62, 74. Driving arrangements.-The lever 72, Fig. 2, is rocked upwardly by a piston 84 reciprocable in a fluid-pressure operated cylinder 78 to cause downward movement of the type-holder 40 towards the web W on a supporting surface 30. The cylinder may be supplied by compressed air from a source 108, through a hose 94 and the movement of the type-holder 40 and web W are synchronized by controlling the air supply through a cam 100, fast on a shaft 98 operated by the associated machine, the cam actuating a pin 102 of a valve 104. Ink-ribbon mechanism.-The hot roll leaf stamping tape T is advanced intermittently from a supply roll 110, Fig. 1, over a skewed guide roller 112, guide rollers 114, 118 by a feed roller 124 coacting with a spring-urged friction roller 128 and wound on a take-up roll 126, driven from the feed roller 124 by an endless spring belt 144, Fig. 6, passing over pulleys 146 and 148. The variable incremental eed movement of the tape is imparted to the feed roller 124, through gears 208, 206, Fig. 1, co-operating with gears 200 and 198, Fig. 6, the latter being fast on a shaft 152, Fig. 2, which is rocked by a uni-directional clutch 158 (see Division F2). Clockwise movement of an arm 176, associated with the clutch, by a downward movement of the arm 72, results in advancement of a fresh portion of tape between the type-holder 40 and the web W, Fig. 1, during an upward stroke of the type-holder. Variable advancement of the tape portion length is effected by vertical adjustment of a screw 178, Fig. 2, by a knurled nut 188, which varies the angular movement of the clutchoperating arm 176. Heating arrangements for types, dies.-The type-holder 40, Fig. 1, carrying suitable typepieces 44 is mounted on a heater block 32, which has a vertical bore 34 containing a removable electric heater element 36.