Collapsible Restraint for Measuring Tapes.

• Main Author: Ueda,H T
• Other Authors: DEPARTMENT OF THE ARMY WASHINGTON DC
• Format: Text
• Language: English
• Published: 1983
• Subjects: Snow; Ice and Permafrost; *Patents; *Gages; Ice; Thickness; Holes(Openings); Tapes; Restraint; Mechanical components; Collapsible structures; *Measuring tapes; PAT-CL-33-137R; Pivot; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADD010890; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADD010890

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 pi...