Drilling device

Details Drilling device Drilling device

1980-07-29

1983-04-26

Bilinsky, Z. R.

Stone working

Sawing

Disk cutting

408126, 408145, 408204, 74325, 74397, B23B 4100, B28D 114

Patent

active

043809910

ABSTRACT:
In a device for drilling rock, concrete, reinforced concrete and similar materials, a spindle is rotatably mounted in a housing and a drilling tool is replaceably mounted on the spindle so that the spindle and drilling tool rotate together. A gear wheel is fitted on the drilling tool. A motor is located on the housing laterally spaced from the axis of rotation of the spindle. The motor includes a drive pinion which drives an intermediate gear. The intermediate gear meshes with the gear wheel and drives the drilling tool and spindle. The spacing between the axis of the intermediate gear and the spindle is adjustable.

REFERENCES:
patent: 103912 (1870-06-01), Mitchell
patent: 1449164 (1923-03-01), Buhr
patent: 2682698 (1954-07-01), Berthiez
patent: 2914305 (1959-11-01), Wink
patent: 3397589 (1968-08-01), Moore
patent: 3515100 (1970-06-01), Keller
patent: 3519092 (1970-07-01), Miller
patent: 3550701 (1970-12-01), Holley

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