Method of making a tube for use in a vibratory finishing machine

Details Method of making a tube for use in a vibratory finishing machine Method of making a tube for use in a vibratory finishing machine

1998-04-06

2000-06-20

Echols, P. W.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

295272, 295271, 164132, 249189, 264183, 264219, B21B 146

Patent

active

060762497

ABSTRACT:
A vibratory finishing machine includes a base having an upper face, coil springs mounted on the upper face of the base, a vibrator having an outer peripheral face and mounted on the base via the coil springs for vibration, a vibrating motor mounted on the vibrator, and a helical tubular container into which an admixture of workpieces to be finished and finishing media are loaded. The container has upper and lower flat superposed faces extending lengthwise and is helically wound on the outer peripheral face of the vibrator at a plurality of turns so that the upper and/or lower superposed faces of each turn of the container are superposed on the lower and/or upper superposed faces of the adjacent turn or turns respectively. A method of making tubes constituting the helical tubular container includes the steps of forming a tubular core by helically winding a band-shaped member having two lengthwise ends while the ends of the band-shaped member are being adhered closely to each other, and disposing the core in a casting mold, pouring a forming material into a space defined between the casting mold and the core and hardening the forming material, and removing the core from the casting mold by pulling out one of the ends of the band-shaped member forming the core.

REFERENCES:
patent: 910370 (1909-01-01), Gleason
patent: 2760504 (1956-08-01), Spurlin
patent: 2918070 (1959-12-01), Carrier, Jr.
patent: 3553900 (1971-01-01), McKibben
patent: 3618267 (1971-11-01), Huber et al.
patent: 3771266 (1973-11-01), Kobayashi
patent: 4352387 (1982-10-01), Yamaguchi

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