Metal working – Method of mechanical manufacture – With testing or indicating
Patent
1982-11-24
1984-08-28
Rosenbaum, Mark
Metal working
Method of mechanical manufacture
With testing or indicating
2541343R, B23Q 1700, B65H 5900
Patent
active
044675143
ABSTRACT:
A unique building wiring system is disclosed. When the building framework is completed and the studs and ceiling joists are exposed, the workman places a mark on the floor directly beneath where an electrical outlet box or the like is to be placed. The workman then drills a vertical hole in the horizontal top plate and directly above the floor mark. A visual locator tool is positioned in the hole so that it is hangingly supported by the top plate. The wall and ceiling panels may then be installed by other workmen. Subsequently, the electrician enters the closed crawlspace where he can easily find the locator by visual observation. He attaches his electrical wiring to the locator and releases the latter so that it drops down from the hole by gravity, carrying the wiring with it in a generally vertical line. The electrician then enters the room, finds the mark on the floor, measures up to where he wants the box, cuts a hole in the wall and retrieves the wire, which is directly therebehind, for attachment to the box. The tool may comprise an elongated heavy bar having an upwardly extending locator portion, a wire attachment element, and a device for manually releasing it from its hanging position on the top plate.
REFERENCES:
patent: 3078073 (1963-02-01), Zizzo
patent: 3110478 (1963-11-01), Bostick
patent: 3858848 (1975-01-01), MacFetrich
patent: 3971543 (1976-07-01), Shanahan
patent: 3995931 (1976-12-01), Pienkowski
Nichols Steven E.
Rosenbaum Mark
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