Joist hangar installation tool

Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other

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Details

269 46, 269904, B25B 514

Patent

active

053120957

ABSTRACT:
A tool for the carpenter or welder in the building industry. The tool quickly and accurately places joist hangars, which are used to fasten and support joists. The tool frees the users hands while holding the hangar in its proper position. Gravity holds the tool and joist hangar combination plumb. The flanges (4) on the tool body (1) engage the flanges on the hangar in proper configuration. The tool has a centered, adjustable sliding support hook which is bent to hook over the top of the beam and slide vertically through the body. The adjustable sliding support hook(2) is secured by a hand operated set screw(3), which is threaded into the body(1). The joist hangar slides into the tool easily. When the joist hangar is nailed or welded, the tool slides off of the installed joist hangar just as easily. The tool can be made in appropriate sizes for different joist hangars. This tool can be fabricated, cast, or injection molded from either metal or plastic.

REFERENCES:
patent: 603940 (1898-05-01), Carkin
patent: 1026622 (1912-05-01), Blount
patent: 3067995 (1962-12-01), Milam
patent: 4159029 (1979-06-01), Matthews
patent: 4973021 (1990-11-01), Schuite
patent: 5054755 (1991-10-01), Hawkes

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