Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Dividing work to form plural articles
Patent
1985-01-11
1987-12-08
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Dividing work to form plural articles
26 7, 26 72, 26106, 264150, 264151, 2642095, 2642888, 2642896, 425 66, 4253021, B29C 5526
Patent
active
047117516
ABSTRACT:
A process of stretching tubular nets or plates made of extruded plastic material according to one or two directions at right angles to each other and an equipment for carrying out the same wherein said process consists in dipping the tubular net or plate into heated water, in causing it to be fitted on a substantially flat and wedge-shaped means, dipped into heated water too, and in cutting said net or plate close to at least one of the sides of said wedge-shaped means; and wherein said equipment consists of a substantially flat and wedge-shaped means disposed on a bearing casing and defined by a plurality of driving and idler pulleys disposed symmetrically two by two with respect to a vertical median plane of the equipment, in order to substantially define a wedge, said pulleys being drivingly connected to each other by at least a driving belt.
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Lowe James
Thermo Plastic Research Co., Ltd.
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