Trestle with crossed legs for supporting musical keyboards

Details Trestle with crossed legs for supporting musical keyboards Trestle with crossed legs for supporting musical keyboards

1988-12-16

1990-04-17

Foss, J. Franklin

Supports

Stand

Plural leg

108118, 211195, F16M 1132

Patent

active

049173413

ABSTRACT:
This invention concerns a trestle support for musical keyboards of the type equippd with legs crossed in the form of an `X`, equipped with a new device that permits rapid and easy adjustment of the angle of spread of the aforesaid legs and the height of the keyboard above the ground by means of a special new and original joint that allows for easy and quick mounting and detachment of transversal tubular bars positioned at either end of the legs of the trestle, those positioned at the base resting on the ground and acting as stabilizing feet for the trestle, while the ones positioned at the upper ends act as supporting arms for the keyboard.

REFERENCES:
patent: 1646165 (1927-10-01), Naujoks
patent: 2271332 (1942-01-01), Ellington
patent: 4245850 (1981-01-01), Boudreau
patent: 4321874 (1982-03-01), Cenna
patent: 4405107 (1983-09-01), Clyburn
patent: 4407045 (1983-10-01), Boothe
patent: 4580750 (1986-04-01), Spellman
patent: 4632473 (1986-12-01), Smith
patent: 4684091 (1987-08-01), Moreschi
patent: 4754711 (1988-07-01), Solomon
patent: 4763865 (1988-08-01), Danner

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