Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1974-11-04
1976-09-14
Lanham, C.W.
Metal working
Method of mechanical manufacture
Assembling or joining
144 3R, 144 27, 144 32R, 29200R, B27M 108, B27C 502, B27C 300
Patent
active
039798178
ABSTRACT:
A door hinge applying unit and method for supporting and releasably holding a door and the hinge jamb of the door frame in positions alongside each other with the butt-receiving surfaces of the door and jamb coplanar for applying the butts of a butt hinge, which unit includes a butt mortiser for simultaneously forming the mortises for said butts, a drilling device for forming the holes for the screws to secure said butts in said mortises, and a screw driving assembly for holding the hinge to be applied with the butts thereof opposed to said mortises, and for holding the screws for securing said butts in said holes in alignment with the latter. The unit includes actuating means for automatically actuating said mortiser, drilling device and screw driving and butt applying assembly, in succession, for (a) simultaneously mortising said surfaces for said butts, (b) then simultaneously drilling said holes, and then (c) positioning the butts in said mortises and simultaneously driving all of the screws for securing said butts in said mortises through the screw openings in said butts and into the previously formed screw holes in the butt mortises for tightly securing the butts in the mortises and to the door and hinge jamb.
REFERENCES:
patent: 2832381 (1958-04-01), Sherwood
patent: 3238980 (1966-03-01), Goldstein
patent: 3263723 (1966-08-01), Sheffield et al.
patent: 3266536 (1966-08-01), Pfeifer
patent: 3297065 (1967-01-01), Zenner
patent: 3772757 (1972-06-01), Goldstein
Crane Dan C.
Lanham C.W.
Norfield Manufacturing Co.
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