Electric heating – Metal heating – By arc
Patent
1987-02-05
1987-10-06
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21912434, 219136, B23K 910
Patent
active
046984844
ABSTRACT:
A welding monitoring system is constructed having an arc welder (16) mounted in an enclosure (12) containing a pair of periscopically positioned mirrors (56, 60). A welding electrode (64) extends from the welder (16) through an opening (58) in the mirror (56) and through an opening (62) in the enclosure (12). The mirror (56) is inclined to reflect an image of a welding operation to the mirror (60), which in turn is inclined to reflect the image through an opening (72) in the enclosure (12) to a third mirror (98). This mirror (98) is mounted in an adjoining region (100) between support members (84, 86) which are coupled perpendicularly to each other, with one member (86) coupled to the enclosure (12) by a rotatable coupling (92). The coupling (92) allows the enclosure (12) and the welder (16) to be rotated about an axis (71) and locked in a selected position by set screws (88).
A mirror (98) reflects the welding image to a receiving lens (36) which is coupled via a rotatable coupling (96) to a vertical support member (34). The coupling (96) allows the enclosure (12) and the welder (16) to be rotated about an axis (81) and locked into a selected position by a set screw (94).
A receiving lens (36) is coupled via a fiber optic bundle (38) to an optical filter unit (40) where selected wavelengths of light are filtered from the welding image. The filter unit (40) is in turn coupled to an enlarger (44) which enlarges the welding image and passes it to a camera (46). The camera (46) is connected to an electronic eclipser (48) which selectively darkens the brightest portions of the welding image. Next, the image is recorded by a video tape recorder (50) and displayed by a monitor (52).
REFERENCES:
patent: 4532408 (1985-07-01), Richardson
patent: 4599506 (1986-07-01), Burke et al.
Babcock Stephen G.
Dyer Gerald E.
Gordon Stephen S.
Beumer Joseph H.
Manning John R.
Shaw Clifford C.
The United States of America as represented by the United States
Wofford, Jr. Leon D.
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