Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1977-07-05
1978-11-28
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156575, B32B 3100, B44C 704
Patent
active
041274342
ABSTRACT:
A hand operated dry wall taping machine includes an elongated tubular body, to be held by the operator, having a tape applicator head portion at the end thereof adjacent the seam being taped. A supply roll of tape is carried from the tubular body. The applicator head includes a dry wall cement dispensing box through which the dry wall tape is fed. Cement is dispensed onto the side of the tape which is to face the wall being taped. A rotary tape shear is disposed up-tape from the cement dispensing box. A thumb actuated pneumatically operated cylinder actuates the rotary shear at the end of the seam being taped and advances a short length of tape through the cement dispensing box in readiness to commence taping of the next seam. A whisker valve in an air line is actuated by the pneumatically operated cylinder for delivering a momentary blast of air into the cement dispensing box for feeding mud onto the advanced leading end of the sheared tape. A second thumb actuated pneumatically operated cylinder controls operation of a cornering wheel for folding the cement laden tape into corner seams. A third thumb actuated pneumatically operated cylinder controls the supply of dry wall cement to the cement dispensing box from a tank of mud carried from the body of the operator, such tank being pressurized with air from an air compressor. The tank is connected via an air line to the air compressor which is carried from a hand truck. The air line is payed out from a spring loaded reel also carried from the hand truck.
REFERENCES:
patent: 2815142 (1957-12-01), Ames
patent: 3116195 (1963-12-01), Lathrop et al.
patent: 3707427 (1972-12-01), Erickson
patent: 3960643 (1976-06-01), Dargitz
Aine Harry E.
Corban Industries, Inc.
Drummond Douglas J.
Lowhurst Harvey G.
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