Frame-setting apparatus

Details Frame-setting apparatus Frame-setting apparatus

1979-04-16

1980-08-26

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

With viewing aid

33194, G01C 932

Patent

active

042188296

ABSTRACT:
A frame-setting apparatus that is designed to be used in leveling frame structures having adjacent side-frame members that must be set in a close parallel relationship to their opposite sides, whether they be in a vertical or a horizontal position, wherein the apparatus comprises an elongated level having a plurality of spirit-level units spaced along the length of the level in the usual manner to provide a level reading in both a vertical and a horizontal position, and wherein flat elongated sections of mirrors are interposed between the spirit levels to reflect from one side frame member to the adjacent frame member, the mirrors being provided with a center-leveling line marked longitudinally along the length of each mirror, so as to aid in the alignment of a corresponding frame member when sighted in the mirrors.

REFERENCES:
patent: 676161 (1901-06-01), Sullivan
patent: 2579644 (1951-12-01), Bergman
patent: 3589014 (1971-06-01), Sarl

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