Static structures (e.g. – buildings) – With lifting or handling means for primary component or... – Position adjusting means; e.g. – leveling
Patent
1983-10-31
1987-01-13
Friedman, Carl D.
Static structures (e.g., buildings)
With lifting or handling means for primary component or...
Position adjusting means; e.g., leveling
52741, 33194, 33376, E04D 1500
Patent
active
046354140
ABSTRACT:
A device for use in positioning and securing a door jamb in a level condition. The device includes a spacer plate assembly having outer end portions which extend beneath the inner portion of the sides of the jamb during the leveling process. A pair of bolt shaped members are threadedly received in the spacer plate assembly, one at each end thereof, to provide a means of raising and lowering the ends of the spacer plate assembly. A suitable level indicating unit such as a carpenter's level is also mounted on the spacer plate. The device further includes a pair of anchor base plates which are mounted in the floor, one at each end of the spacer plate, adjacent the lip extensions. The bolt members are rotated until the level indicating unit shows the spacer plate to be in a level condition, at which time each side of the door jamb is fixed to the respective anchor base plate by anchor screws or similar means. The spacer assembly is then withdrawn, leaving the door jamb mounted in a level condition on the anchor base plates. In one embodiment, the spacer plate assembly is provided with means at each end thereof for adjusting the length of the assembly so as to fit door jambs of various widths.
REFERENCES:
patent: 2689412 (1954-09-01), Young
patent: 2748493 (1956-06-01), Williams
patent: 2855695 (1958-10-01), Buck
patent: 3648378 (1972-03-01), Thingstad et al.
patent: 4478016 (1984-10-01), Allen
Ezy-Set Jamb Leveler, sales brochure, The Allen Corporation.
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