Apparatus for forming curved surfaces by rotation

Details Apparatus for forming curved surfaces by rotation Apparatus for forming curved surfaces by rotation

1973-12-18

1977-03-01

Lindsay, Jr., Robert L.

Glass manufacturing

Particulate bead or ball making apparatus

65 71, 65302, 425 3, 425128, 164146, 164255, 164289, C03B 1904, C03B 1314

Patent

active

040100200

ABSTRACT:
Conoid surfaces can be generated by rotation of a material at different angles and under differing constraints. An axis of 45.degree. can produce hyperboloids; with perpendicular axes, concentric spheres can be produced; magnetic fields can be used to shape the lenses; and multielement lenses can be produced with special chambers.

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patent: 3010153 (1961-11-01), Bittnek
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patent: 3474165 (1969-10-01), Rakes et al.
patent: 3528133 (1970-09-01), Morse
patent: 3818974 (1974-06-01), Eberle

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