Metal working – Method of mechanical manufacture – Obtaining plural product pieces from unitary workpiece
Patent
1983-09-15
1984-11-13
Thurlow, Jeffery
Metal working
Method of mechanical manufacture
Obtaining plural product pieces from unitary workpiece
29451, 29453, 29458, 264135, 264149, 264152, 264156, 264172, 264177R, 425113, B29C 1708, B23P 1700
Patent
active
044817010
ABSTRACT:
A profile for use in the manufacture of frames for windows and the like comprises a core (1) of generally rectangular cross section of laminated plywood or cement-bonded fibrous material with a cladding (3) of plastics material, for example polyvinylchloride or polycarbonate, extruded therearound. The extruded cladding (3) provides, extending along the length of the profile, a glass (or other) panel retaining member (9) which is inclined inwardly (preferably at 45.degree. or substantially so) over a surface of the profile, and an undercut rib 11 spaced from the member (9). In manufacturing frames from the profile the latter is cut into appropriate lengths by saw cuts (31-39) extending at 45.degree. across the profile, alternate ones of the frame members being assembled to form inner (40) and outer (42) frames for a window or the like, the panel retaining members (9) being severed from the outer frame members and used as glazing strips (9'0 for the inner frame members, being supported by the undercut face (23) of the rib (11) and a glazing clip (100) supported by said surface of the profile. An alternative form of glazing clip (47) is described. The frame members are secured together at the frame corners by means of plastics material injected into cavities (207) formed through adjacent faces (205) of the frame members and provided with metallic reinforcements (211).
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Dailey Patrick
Halgren Donald N.
Thurlow Jeffery
White Vincent A.
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