Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent
1979-10-15
1982-05-04
Reynolds, Wm. Carter
Tool driving or impacting
Impacting devices
Impact transmitting anvil
173132, E21D 2000, B25D 1700
Patent
active
043278060
ABSTRACT:
The invention comprises an Accessory for use with a driver for forceably inserting friction rock stabilizers into bores formed in earth structures (such as mine roofs). In the depicted embodiments, the Accessory comprises an elongate body having a pin or socket at one, "lower", "driven" end for engaging and supporting an end of a stabilizer, and a limb or socket at the opposite, "upper", "drive" end for receiving a driver. The latter limb or socket is offset, to accommodate an angled, unobstructed address of the driver to the upper end of the body, and to enable a linear insertion of a lower-end-supported stabilizer into a bore. In accommodating a driver at the upper end of the body, to forceably insert a stabilizer which has its termination supported on the lower end of the body (the insertion force, therefore, being applied through the body), the Accessory facilitates bore insertion of lengthy stabilizers, by means of conventional drivers, in low headroom, subterranean openings.
REFERENCES:
patent: 352756 (1886-11-01), Husted
patent: 667464 (1901-02-01), Seeger et al.
patent: 1566631 (1925-12-01), Sturtevant
patent: 2605808 (1952-08-01), Current
patent: 2944523 (1960-07-01), Werstein
patent: 3454113 (1969-07-01), Holtz
patent: 3499497 (1970-03-01), Moore
patent: 3699799 (1972-10-01), Paine
patent: 3922867 (1975-12-01), Scott
Ingersoll-Rand Company
Murphy Bernard J.
Reynolds Wm. Carter
Tibbott David W.
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