U.S. Bomb's making process
Item
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Title (Dublin Core)
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U.S. Bomb's making process
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Article Title and/or Image Caption (Dublin Core)
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Title: Casting the Eggs of War
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extracted text (Extract Text)
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PUTTING worn-out bronze ma~
chinery bushings back in shape
by a process of his own devising,
A. V. Berry, of Los Angeles, Calif.,
has built up a novel and paying
business. Currently, however, its
prime importance is its saving of
tons of the strategic war alloy of
copper and tin formerly discarded.
When a bushing—the “shell” in
which a shaft, or journal, turns—
comes in for overhaul, Berry first
cleans it with a hot chemical, after
which a steam bath sweats out ofl
imprisoned in the metal. Next, the
bushing is placed in a press over a
tapered die through which it is
quickly forced by a 10-ton plunger.
This reduces the inside and outside
diameters of the relatively soft
bushing. Subsequent steps achieve
resizing of these diameters. The
outside is made rough with a spe-
cial tool, then literally sprayed with
atomized steel from a gunlike de-
vice as the bearing is revolved,
building up a steel backing. Both
the backing and the inside surface
finally are ground by conventional
methods to desired diameters.
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Language (Dublin Core)
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eng
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Date Issued (Dublin Core)
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1942-04
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pages (Bibliographic Ontology)
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102-104
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Rights (Dublin Core)
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Public Domain (Google Digitized)
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Archived by (Dublin Core)
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Roberto Meneghetti
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Marco Bortolami (editor)
Popular Science Monthly, v. 140, n. 4, 1942
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