Tool driving or impacting – With work engaging means supporting drive – Anchored to work
Patent
1983-02-01
1985-02-05
Briggs, William R.
Tool driving or impacting
With work engaging means supporting drive
Anchored to work
173 3152, 405259, E21C 1100
Patent
active
044973780
ABSTRACT:
A turret for mining appliances comprises a girder serving as a guide for a drilling carriage and a bolting carriage, which is mounted to pivot and slide along an axis at the end of a support arm. The girder is integral with two bearings, mounted to rotate freely and to slide on a tube provided with an anchoring point and integral with a support box articulated on the arm. The two bearings are connected by a second tube which passes through a connecting-rod which is mounted to rotate but prevented from moving longitudinally on the first tube, the pivoting of the turret being controlled by a jack pivotally connected on the one hand to the box and on the other hand to the connecting-rod. The withdrawal of the girder is controlled by another jack housed partly in the first tube.
REFERENCES:
patent: 3246705 (1966-04-01), Chappuis
patent: 3563321 (1971-02-01), Barendsen et al.
patent: 4105081 (1978-08-01), Perraud
patent: 4215953 (1980-08-01), Perraud
Beney Gilbert
Combet Michel
Briggs William R.
Eimco-Secoma (Societe Anonyme)
Meier Lawrence H.
Ross Karl F.
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