Accession Number : ADD010890
Title : Collapsible Restraint for Measuring Tapes.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Ueda,H T
Report Date : 08 Mar 1983
Pagination or Media Count : 9
Abstract : A collapsible restraint is provided for attachment to the end of a flexible measuring tape in order to allow the thickness of a material, such as an ice layer covering a lake or other body of water, to be measured through a hole in the material. The collapsible restraint includes first and second pivotally connected blades which are maintained in a fully extended position by a locking arrangement to allow the blades to engage the bottom opening of the hole. The locking arrangement can be disabled by an upward pull on the flexible measuring tape in order to cause the blades to pivot to a collapsed position, thereby permitting the restraint to be withdrawn from the hole.
Descriptors : *Patents, *Gages, Ice, Thickness, Holes(Openings), Tapes, Restraint, Mechanical components, Collapsible structures
Subject Categories : Snow, Ice and Permafrost
Distribution Statement : APPROVED FOR PUBLIC RELEASE