Brake for Linear Measuring Instrument

  • Inventors:
  • Assignees: Quenot & Cie Sarl
  • Publication Date: October 15, 1969
  • Publication Number: GB-1167640-A

Abstract

1,167,640. Tape measures. QUENOT & CIE S.A.R.L. Sept.6, 1967 [Jan. 6, 1967], No.40687/67. Heading G1M. A tape measure comprises a tape 1 wound on a drum 2 in a casing or frame 3 and braking means including a resilient member 8 which engages the edge of the outer coils of the tape, the engagement being maintained by elastic deformation of the member on displacement of the outer coil by winding or unwinding the tape. The braking means has a central part 9 mounted on the drum shaft and a number of arms 8 made for example of acetal resin or nylon. The extremities of the arms are bent and formed with grooves 12 which engage cross-bars 13 of the frame to prevent rotation of the brake. In a modification, further arms are provided to act as a brake for the drum and sector shaped arms are described for use with a tape measure enclosed in a casing.

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