Bubble level

Details Bubble level Bubble level

1988-03-03

1989-08-29

Cuchlinski, Jr., William A.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33381, G01C 928

Patent

active

048604593

ABSTRACT:
A bubble level with a hollow metal section has a circular window, in which a cylindrical level tube for a vertical level can be inserted with a positive interlock in the axial direction and can be fastened with a material interlock. A level support is inserted into the hollow section in the axial direction. The support has a cylindrical seat aligned with the window, to receive a level holder that bears a level. An interlock device is disposed between the level support and the level holder. By means of this interlock device, the level holder is mounted axially fixed, but rotatable until it is fastened by the material interlock.

REFERENCES:
patent: 764092 (1904-07-01), Wilcox
patent: 895573 (1908-08-01), Myers
patent: 1205956 (1916-11-01), Adkins
patent: 2541880 (1951-02-01), McMillan et al.
patent: 2634509 (1953-04-01), Roberts
patent: 2825144 (1958-03-01), Warden et al.
patent: 3225451 (1965-12-01), Olexson et al.
patent: 3442024 (1969-05-01), Don
patent: 3842514 (1974-10-01), Scheyer

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