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Title: Rotation sensor switch

Abstract

A protective device to provide a warning if a piece of rotating machinery slows or stops comprises a pair of hinged weights disposed to rotate on a rotating shaft of the equipment. When the equipment is rotating, the weights remain in a plane essentially perpendicular to the shaft and constitute part of an electrical circuit that is open. When the shaft slows or stops, the weights are attracted to a pair of concentric electrically conducting disks disposed in a plane perpendicular to the shaft and parallel to the plane of the weights when rotating. A disk magnet attracts the weights to the electrically conducting plates and maintains the electrical contact at the plates to complete an electrical circuit that can then provide an alarm signal.

Inventors:
 [1]
  1. Joliet, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
863104
Patent Number(s):
4093835
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rotation; sensor; switch; protective; device; provide; warning; piece; rotating; machinery; slows; stops; comprises; pair; hinged; weights; disposed; rotate; shaft; equipment; remain; plane; essentially; perpendicular; constitute; electrical; circuit; attracted; concentric; electrically; conducting; disks; parallel; disk; magnet; attracts; plates; maintains; contact; complete; alarm; signal; alarm signal; plane perpendicular; electrical contact; electrically conducting; electrical circuit; rotating shaft; protective device; rotating machinery; rotating machine; conducting plate; /200/335/

Citation Formats

Sevec, John B. Rotation sensor switch. United States: N. p., 1978. Web.
Sevec, John B. Rotation sensor switch. United States.
Sevec, John B. Sun . "Rotation sensor switch". United States. https://www.osti.gov/servlets/purl/863104.
@article{osti_863104,
title = {Rotation sensor switch},
author = {Sevec, John B},
abstractNote = {A protective device to provide a warning if a piece of rotating machinery slows or stops comprises a pair of hinged weights disposed to rotate on a rotating shaft of the equipment. When the equipment is rotating, the weights remain in a plane essentially perpendicular to the shaft and constitute part of an electrical circuit that is open. When the shaft slows or stops, the weights are attracted to a pair of concentric electrically conducting disks disposed in a plane perpendicular to the shaft and parallel to the plane of the weights when rotating. A disk magnet attracts the weights to the electrically conducting plates and maintains the electrical contact at the plates to complete an electrical circuit that can then provide an alarm signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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