DEVICE FOR MAKING HOLES WITH BACKING-OFF Russian patent published in 1995 - IPC

Abstract RU 2028943 C1

FIELD: manufacture of building materials. SUBSTANCE: device has a drilling fixture fixed in the bedplate holder on a supporting bush, a guiding bush comprising a bracket with a tool mounted on a swinging plate connected with the drilling fixture drive and driving cylinders placed on the holder concentrically around the central axle for interacting with the swinging plate. EFFECT: improved treatment of stone. 3 cl, 2 dwg

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RU 2 028 943 C1

Authors

Shtefan Lind[De]

Dates

1995-02-20Published

1992-08-21Filed