Horizontally supported planar surfaces – Folding – With vertical adjustability
Patent
1977-06-10
1979-02-13
Mitchell, James C.
Horizontally supported planar surfaces
Folding
With vertical adjustability
108159, A47B 302
Patent
active
041389522
ABSTRACT:
In a collapsible tea table combination wherein a foldable X-legged stand provides level and lengthwise parallel crossbars, and supports the improved tray system, maximum usable planar spread of crossbars can be selectively spanned and detained by rails rigidly attached along two parallel sides of the tray-bed to provide a minimum usable tray elevation. Minimum usable planar spread of crossbars can be selectively spanned and detained by means of deformable hangbuttons inserted into apertures formed in the tray-bed near the rails to provide a maximum usable tray elevation. The tray can be rendered invertible by using reversible tray-bed material, by using rails which juts both above and below the tray-bed, and by using hangbuttons which are symmetrically contoured for vertical displacement and rotation. Inasmuch as hangbuttons rotate within their apertures, they serve as rotary locks for stabilizing a table erected from any one of the choice of practical tray settings.
REFERENCES:
patent: 352555 (1886-11-01), Merkel
patent: 2624469 (1953-01-01), Cadwell et al.
patent: 2903312 (1959-09-01), Lawless
patent: 3001843 (1961-09-01), Davis
patent: 3157136 (1964-11-01), Moody
patent: 3365072 (1968-01-01), Hill
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