Geometrical instruments – Area integrators – Electrical
Patent
1981-05-26
1983-03-08
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
33173, 33174N, 33174E, 33174M, G01B 356
Patent
active
043757243
ABSTRACT:
The invention relates to apparatus for use in aligning sections of pipe with respect to each other, and more particularly to aligning two sections of pipe 30 and 32 at a predetermined angle with respect to each other so that a joint between the pipe sections may be formed by welding and the like. The apparatus includes gauge devices 16 and 18 which slidably fit upon a leg 14 of a tool 10 having a second angularly oriented leg 12 such as a carpenter's square. Each gauge device includes a vertically movable gauge element 26 having gauge indicia 34 carried thereon. The gauge element 26 is advantageously in the form of a spring-loaded plunger which may be maintained within a bore 40 of the gauge device. Means for locking the gauge device in a spaced-apart relation is provided by wing nuts 22 and 24.
REFERENCES:
patent: 183387 (1976-10-01), Essex
patent: 315264 (1885-04-01), Euinton
patent: 2832152 (1958-04-01), Blackshaw
patent: 2972816 (1961-02-01), Richardson
patent: 3670418 (1972-06-01), Hamilton
patent: 3688412 (1972-09-01), Keener
patent: 4034943 (1977-07-01), Freeman
patent: 4096634 (1978-06-01), Gudel
American Machinist-"Surface Inspection etc.", p. 125, vol. 100 #7, 3/26/56.
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