Report of Test on Bells, Manufactured by Chas. J. Henschel and Co., Inc., Amesbury, Mass.

Abstract

Both bells were first tested for their sound output, while operating at the normal 90 strokes per minute, at rated voltage They were then tested for conformance with the specifications, reference (B) and carefully examined to ascertain whether they were in strict accordance with the specifications in the matter of materials, designed and worksmanship.

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Document Details

Document Type
Technical Report
Publication Date
Oct 21, 1935
Accession Number
AD1149847

Entities

People

  • J. S. Bryant
  • W. B. Roberts

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Materials
  • Specifications

Readers

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