Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1978-02-06
1979-10-30
Baldwin, Robert D.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
7424211P, B22D 1106
Patent
active
041724909
ABSTRACT:
In a continuous molten metal casting apparatus of the wheel-band type, wherein an elongated endless metal band partially closes a groove inscribed about the periphery of the rotatable casting wheel, an apparatus to apply and maintain a fixed, determinable tension to the elongated, endless band. The tension apparatus of the present invention permits the use of greatly elongated casting bands, maintaining a tension thereon, even during electrical power or air pressure supply failure, to thus provide improved band life. The tension wheel is rotatably mounted upon a carriage which slides on a pair of bellows-enclosed shafts, the carriage riding on a plurality of ball bushings. A dual-action air cylinder, attached at one end to the carriage and the other to the tension mechanism frame, operatively tensions the band through the wheel and carriage assembly. A spring loaded pawl attached to the carriage is restrained from engagement with a frame mounted rack during normal operation, which pawl engages the rack to constrain release of band tension should the air supply fail during operation. The apparatus is of a configuration such that it may be used or retrofitted with a great many of the various wheel-band casting machine configurations of past and present manufacture.
REFERENCES:
patent: 3545527 (1970-12-01), Bray et al.
patent: 3938580 (1976-02-01), Donini
patent: 3996993 (1976-12-01), Bonnamour
patent: 4064929 (1977-12-01), Quehen et al.
Baldwin Robert D.
Batten, Jr. J. Reed
Hanegan Herbert M.
Linne Robert S.
Southwire Company
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