Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1988-10-21
1990-06-12
Shoap, Allan N.
Geometrical instruments
Straightedge type
Wall guide and plumb
33406, 33413, 33 1LE, 33 1H, E04G 2118
Patent
active
049321340
ABSTRACT:
An adjustable foundation locating device used to position or locate forms and trenches needed for pouring concrete foundations. The device uses a horizontal member which is supported by a stake driven into the ground. The horizontal member may be moved up or down the stake until it is located at a desirable height and then secured in place by tightening a bolt threaded into a bracket attached to the horizontal member. Sleeve members may be slid back and forth along the longitudinal length of the horizontal member until they are properly located and then secured in place by tightening bolts threaded into the sleeve members. Strings may then be tied to the sleeve members and pulled taut between two devices located at opposite ends of a trench needed for a concrete foundation. The strings may then be used as guides to position or locate the trench or a concrete form needed for pouring the concrete foundation. A stabilizing member may be used to help secure the horizontal member to the stake. The device may be secured across the top of two concrete forms by using the bracket on the device to clamp it to a flange at the top of one of the forms. Adjustable support members may be used with stakes to position one of the horizontal members which slidably engages the suport members. The horizontal member may be secured to the support members by bolts which are threaded into sleeve members of the support members.
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Gutierrez Diego F. F.
Shoap Allan N.
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