Door frame installation and method of using

Geometrical instruments – Gauge – Door and window

Patent

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Details

33645, 521272, 52217, 269905, E04F 2100, E06B 300

Patent

active

051670739

ABSTRACT:
An installation frame to facilitate the mounting of a door frame in a rough opening in a domestic or commerical structure which includes parallel stanchions to be disposed, and secured, one on each side jamb, of the prepared frame. The stanchions with suitable horizontal spacers, are secured inside the jambs and the assembly is placed in the rough opening in a building and clamped in place. A first pair of crossed cables extending from the corners indicates, by included measuring devices, whether the frame is square. A second set of crossed cables extending from the corners indicates, by the closeness of cables at the crossing point, whether the frame is in a single plane and not askew. Adjustments are made to insure squareness and proper plane position and then the prepared jamb is centered in the opening and nailed in place.

REFERENCES:
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patent: 1004471 (1911-09-01), Rose
patent: 2771688 (1956-11-01), Baker
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patent: 3168305 (1965-02-01), Lee
patent: 3199206 (1965-08-01), Snapp
patent: 3408744 (1968-11-01), Fitzgerald
patent: 4707925 (1987-11-01), Englehart
patent: 4829727 (1989-05-01), Kuzara, Jr.
patent: 4998355 (1991-03-01), Greene
patent: 5025607 (1991-06-01), Green et al.

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