Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1979-03-05
1980-11-25
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156554, 156555, 226198, 242 76, 352224, B32B 3100, B31F 500, B65N 2332, B65N 2700
Patent
active
042356601
ABSTRACT:
Apparatus for repairing sprocket holes on strip material, such as motion picture film, with pressure adhesive tape having holes is provided with improved guide means for feeding material through a sprocket wheel mounted on a shaft at a repair station, an improved means for pressure bonding repair tape on material at the sprocket wheel, an improved sprocket design, and a cutting knife (attached to a knob which can be pushed in on the shaft against the force of a spring and which is used to turn the sprocket wheel) aligned with a slot in the sprocket wheel to cut the repair tape after repairs have been made, but only when the knife and a slot in the sprocket wheel are in a position where a pin in the knob that passes through the sprocket wheel can also pass through a hole in a wall that supports the shaft so the knife will cut only the repair tape, and not the tape and the material. A second embodiment uses a motor to turn the sprocket shaft, and a friction clutch at the end of the shaft to engage the knob. Dual tracks and sprocket wheels are provided for use of the apparatus with material of different gauges.
REFERENCES:
patent: 1966684 (1934-07-01), Pollock
patent: 3547370 (1970-12-01), Unterdurrbach
patent: 3588346 (1971-06-01), Ramig
patent: 3959048 (1976-05-01), Stanfield
patent: 4001073 (1977-01-01), Jones
patent: 4026756 (1977-05-01), Stanfield
patent: 4052245 (1977-10-01), Kuts
Drummond Douglas J.
Stanfield James S.
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