Electric heating – Metal heating – By arc
Patent
1984-09-10
1987-04-07
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913741, 901 42, B23K 900
Patent
active
046563296
ABSTRACT:
A rotatable mount includes a support arm with a bearing block at one end having a cylindrical aperture therethrough in which is rotatably received a cylindrical housing. A fixed flange and a threadedly removable flange on the housing cooperate axially to retain the housing in the aperture. Annular surfaces on the housing and bearing block cooperate to form an annular chamber which provides continuous communication between a first passage in the housing and a second passage extending through the bearing block and the support arm. The housing has an axial bore in which is received a docking body to which associated welding apparatus can be quickly manually mounted and demounted. The housing is electrically insulated from the docking body. The passages may be used for removing smoke from a welding apparatus. The docking body has a longitudinal channel which communicates with a transverse opening through the housing externally of teh bearing block of accommodating cables, wires or the like for associated auxiliary equipment which might be mounted on the housing.
REFERENCES:
patent: 4142084 (1979-02-01), Torrani
patent: 4168406 (1979-09-01), Torrani
patent: 4309809 (1982-01-01), Yokoe et al.
patent: 4467175 (1984-08-01), Reeh et al.
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