Liquid level setting means for electric discharge machine

Details Liquid level setting means for electric discharge machine Liquid level setting means for electric discharge machine

1986-01-24

1988-07-05

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

219 69R, B23H 110, B23H 736

Patent

active

047556510

ABSTRACT:
The level of the working fluid in the work tank of an electrical discharge machining is controlled by a device located externally of the work tank. A vertically arranged cylindrical liquid level setting device is supported on the machine frame outside the work tank and is connected to the work tank by a tube. The liquid level setting device is vertically adjustable with respect to the frame by a manually operated shaft and link mechanism. In a second embodiment, an upper tank containing a supply of working fluid communicates with the work tank through a valve which is actuated by a float and limit switch to control the level of working fluid in the work tank.

REFERENCES:
patent: 2548696 (1951-04-01), Barstow et al.
patent: 3524457 (1970-08-01), Laimbock
patent: 4257437 (1981-03-01), Pearson
patent: 4345618 (1982-08-01), Altman et al.
patent: 4622449 (1986-11-01), Inoue
patent: 4628170 (1986-12-01), Furukawa
"DP 275A, EDM Machine", by Japax, published Aug. 1973.

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