Patent GB-1193618-A (GB)
Title: Improvements relating to Splicing Apparatus.
Inventor: ROSS HARRY HERMAN
IPC: H04L13/06
Filed: 1966-08-20
Abstract: 1,193,618. Splicing recording webs. PUNCHED CARD ACCESSORIES Ltd. 10 Aug., 1967 [20 Aug., 1966; 9 Dec., 1966], Nos. 37422/66 and 55152/66. Heading G5R. Splicing apparatus for joining together the ends of two webs includes a bed with means for locating the web end portions in aligned relation on it, a heater movable relative to the web-locating means to engage with the located web ends between the bed and itself, and clamp means movable relative to both the web locating means and the heater to bring the heater to closed position to apply heat and pressure for joining. Two paper data tape ends T1, T2, Fig. 4, are located on a bed 5, Fig. 2, so that an overlap of one punch hole character position is achieved at a guide notch in the bed, adhesive is applied, and transparent flaps 8 (7, not shown), hingedly mounted on a cross shaft 9, engage the tape ends between the bed 5 and themselves. A heater H housing an electric heating element 14 and thermostat 13<SP>1</SP> has an outstanding surface 18 intended to engage the web ends, and has a slot connection 16 with shaft 9. The heater H has an arcuate cam surface 20 with a dwell formation 21 and blending into a projecting formation 22. A clamp means C has one arm 24 pivotally mounted to a depending bracket 3<SP>1</SP> of the frame by an eccentric adjuster means 25 controlled by a handle 29. The heater is left on all the time. When an operating handle 36 is moved in direction D1, Fig. 4, rollers 34, Fig. 2, pivoted at 33 across the clamp means C, co-operate with cam surface 20, following a path P1 convergent with the line P2 of the cam surface; the rollers come to rest in dwell formation 21. A flasher lamp is used to indicate the appropriate duration of heat and pressure. Fig. 8 shows a separate heating and clamping appliance 51 which may be used with the bed of the main apparatus (see below) or, as shown, with a separate bed 67. The heater block 52 houses a thermostat 56 and has heater 53 and heated plate 54 with protruding surface 55. The block is pivoted at 57 to an inverted channel member 58 which extends at 62 beyond a tubular casing 59 with handle-covering 61. The projection 62 is mitred as shown (but the mitre does not engage any surface in use). The bed 67 is mounted on a base board 68 which also has, behind the bed, a box-like member 69 having a front opening 70 providing a fulcrum 71. For splicing the ends of a small loop of tape, adhesive is applied to their ends as before, and the ends are located on bed 67. The appliance is inserted by the operator through the loop, and part 62 is inserted under fulcrum 71. Downward pressure is now exerted, the heater block 52 moving as necessary about pivot pin 57 to permit adjustment of surface 55 for distribution of pressure. The appliance 51 may be used with the main apparatus for splicing small loops, or normal end portions, of tape, and may be connected to the main electric control and timing means. The clamp means C has a fulcrum pin under which part 62 is engaged, and is prevented from moving by a removable looking pin.