GB280808A - Improvements in or relating to electrically operated audible warning signals - Google Patents

Improvements in or relating to electrically operated audible warning signals

Info

Publication number
GB280808A
GB280808A GB1302827A GB1302827A GB280808A GB 280808 A GB280808 A GB 280808A GB 1302827 A GB1302827 A GB 1302827A GB 1302827 A GB1302827 A GB 1302827A GB 280808 A GB280808 A GB 280808A
Authority
GB
United Kingdom
Prior art keywords
relating
holders
brush
electrically operated
warning signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1302827A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KLAXON Ltd
Original Assignee
KLAXON Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KLAXON Ltd filed Critical KLAXON Ltd
Priority to GB1302827A priority Critical patent/GB280808A/en
Publication of GB280808A publication Critical patent/GB280808A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

280,808. Monnot, J. F., and Klaxon, Ltd. May 14, 1927. Brush-holders.-In a diaphragm horn which is operated by an electric motor, a sheet metal insulating plate H carries the brush-holders H<1> and the terminals, two of which are formed by the securing bolts h. Each brush-holder is formed in one piece by stamping from sheet metal, and bas flanges h<2> for attachment to the plate H, one flange being extended to serve as a terminal. The brushes I are pressed against the commutator by helical springs I<1> secured to projections h<3> on the holders and disposed in slots h<4>.
GB1302827A 1927-05-14 1927-05-14 Improvements in or relating to electrically operated audible warning signals Expired GB280808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1302827A GB280808A (en) 1927-05-14 1927-05-14 Improvements in or relating to electrically operated audible warning signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1302827A GB280808A (en) 1927-05-14 1927-05-14 Improvements in or relating to electrically operated audible warning signals

Publications (1)

Publication Number Publication Date
GB280808A true GB280808A (en) 1927-11-24

Family

ID=10015480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1302827A Expired GB280808A (en) 1927-05-14 1927-05-14 Improvements in or relating to electrically operated audible warning signals

Country Status (1)

Country Link
GB (1) GB280808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273822A (en) * 1992-12-22 1994-06-29 Johnson Electric Sa Brush spring arrangement for electric motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273822A (en) * 1992-12-22 1994-06-29 Johnson Electric Sa Brush spring arrangement for electric motor
US5402027A (en) * 1992-12-22 1995-03-28 Johnson Electric S.A. Brush assembly for an electric motor

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