Supports – Staff type – Stand or base
Patent
1980-03-10
1982-02-02
Foss, J. Franklin
Supports
Staff type
Stand or base
248316E, F16M 1300
Patent
active
043135889
ABSTRACT:
A Christmas tree base or the like with a cross-shaped stand or the like, on the legs of which holders for the trunk or the like are provided, which by springs are capable to draw the holders to the center of the base. A cam disc is located centrally in the base. The cams of said disc upon rotation in one direction push the holders outward from the center. Upon rotation in the other direction, the springs draw the holders inward to the center whereby the holders with their upper portion abut the trunk. The holders are slidable on the legs with a certain play, so that a "chest drawer effect" arises upon abutment of the holders to the trunk and thereby locking is effected. The springs, therefore, can be dimensioned so small that the rotation of the disc in one direction or the other does not require much force, because the disc preferably is located in such a plane that it automatically neutralizes the action of the "chest drawer effect".
REFERENCES:
patent: 848850 (1907-04-01), Pissahl
patent: 1155383 (1915-10-01), Tischer
patent: 2023340 (1935-12-01), Peskulich
patent: 2242270 (1941-05-01), Sims
patent: 2542514 (1951-02-01), Harrell
patent: 2893668 (1959-07-01), Applegate
patent: 4130965 (1978-12-01), Patton
Foss J. Franklin
R. Hagga & Soner Aktiebolag
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