Geometrical instruments – Indicator of direction of force traversing natural media – Attaching means
Patent
1989-08-17
1990-11-20
Will, Thomas B.
Geometrical instruments
Indicator of direction of force traversing natural media
Attaching means
33370, 33372, 33373, G01C 928
Patent
active
049707965
ABSTRACT:
A tool for abutment against an object to detect when the object is at a predetermined orientation is temporarily securable to the object in order to free both of the operator's hands for other activities. Plural spirit level vials, oriented to face in different directions, indicate when the tool is vertical, horizontal or inclined at one or more predetermined angles. In the preferred form, the tool body has a central handle region from which arms extend in opposite directions and a pair of members extend laterally from the end of each arm to define segments of a right angled slot into which the object is fitted. The tool preferably has three different types of fastener including retractable nail-like pins which may be penetrated into wood or the like, elastic cords which may be used to clasp the object and magnets which cause the tool to cling to steel posts, pipes or the like.
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Masters James C.
Stevens Thomas K.
Will Thomas B.
Zimmerman Harris
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