GB1076033A - Method and apparatus for manufacturing strip mouldings - Google Patents

Abstract

1,076,033. Composite extruded strip mouldings. SCHOCK & CO. G.m.b.H. Sept. 30, 1964 [Oct. 19, 1963], No. 39820/64. Heading B5A. [Also in Division B6] Composite extruded strip mouldings comprise a profiled plastics member and a partial or complete covering therefor which may be in the form of a flat ribbon (18) or (42), Figs. 1 and 2 (not shown), or a profiled ribbon (52) or (82), Figs. 3 and 4 (not shown) with optionally a protective and detachable plastics coating for the ribbon as at (84), Fig. 4 (not shown). The covering material may be flexible or rigid and be made from fabric, patterned or otherwise, wood, metal band or foil. The profiled member and protective coating may be of transparent material. It is stated that the strip moulding may be decorative, e.g. for use on glass sliding doors, Fig. 3 (not shown), and when formed as a relatively thin and wide strip may form with others a wall facing or table surfacing. In one embodiment the moulding is made by preliminarly shaping a metal foil by rollers and finally shaping it by passage through an inlet die 62, and extruding the plastics material via a channel 88 into contact with the foil immediately before and during pasage through an outlet die 98. The protective coating material is fed through a channel 96 and acts as a lubricant for the foil. When this coating is dispensed with, lubricant may be fed through a channel (72), Fig. 6 (not shown), or alternatively, a gaseous counterpressure may be applied. The covering material is preferably cooled to assist solidification of the plastics and, particularly when a flat ribbon is used, this may be initially provided with a bonding agent. The extrusion head may be cooled and/or heat insulated adjacent the passage for the covering material, heated adjacent channel 88 for the plastics material and guide element 92 may be interchangeable and incorporate outlet die 98. An apparatus for applying a strip of fabric is also described, Fig. 5 (not shown). The composite moulding may be wound on a reel or cut up into pieces of equal length.