GB891629A - Indicator lights - Google Patents

Indicator lights

Info

Publication number
GB891629A
GB891629A GB1857759A GB1857759A GB891629A GB 891629 A GB891629 A GB 891629A GB 1857759 A GB1857759 A GB 1857759A GB 1857759 A GB1857759 A GB 1857759A GB 891629 A GB891629 A GB 891629A
Authority
GB
United Kingdom
Prior art keywords
casing
recess
switch
mercury
battery
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
GB1857759A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1857759A priority Critical patent/GB891629A/en
Publication of GB891629A publication Critical patent/GB891629A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/10—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for personal use, e.g. hand-held

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Audible And Visible Signals (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

891,629. Inertia switches; mercury switches. JUHASZ, L. Aug. 5, 1960 [June 1, 1959], No. 18577/59. Class 38 (5). [Also in Groups XI and XVIII] An electric indicator lamp adapted to be secured to the person comprises a casing enclosing a battery, an electric light bulb mounted in the casing, a switch for connecting the bulb to the battery which is unaffected by the position of the casing but can be operated by a sharp shock and means for securing the casing to the person. The bulb is threaded into a disc at the base of a recess 10 in the casing and the centre contact 14 of the bulb contacts one surface of a rechargeable nickel-cadmium battery accommodated in the recess. A spring 25 extending round part of the recess engages the periphery of the battery and terminates at one end in a kinked part 25a. Outside the recess is a circular wall 9 forming a channel 8 housing a springy connector 30, one end of which terminates adjacent the part 25a and the other engages one pole of a mercury switch 32, the other pole of which is connected to a strip 33 engaging an extension on the disc. An operating lever 40 in one position presses the end of the connector 30 into contact with the part 25a whereby the circuit of the lamp can be closed by the mercury switch which comprises a bead of mercury enclosed in a narrow tube so that the position of the bead is not altered altered by change of position of the casing but only by a sharp jerk. The mercury switch may be replaced by a switch having a spring-biased moving element stable in two extreme positions. Alternatively, a magnetic bias may be used.
GB1857759A 1959-06-11 1959-06-11 Indicator lights Expired GB891629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1857759A GB891629A (en) 1959-06-11 1959-06-11 Indicator lights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1857759A GB891629A (en) 1959-06-11 1959-06-11 Indicator lights

Publications (1)

Publication Number Publication Date
GB891629A true GB891629A (en) 1962-03-14

Family

ID=10114844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1857759A Expired GB891629A (en) 1959-06-11 1959-06-11 Indicator lights

Country Status (1)

Country Link
GB (1) GB891629A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255402A (en) * 1991-05-02 1992-11-04 Mark Steven Casey Hand light
US5193896A (en) * 1992-01-13 1993-03-16 Seymour Oberlander Lighting device for personal use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255402A (en) * 1991-05-02 1992-11-04 Mark Steven Casey Hand light
US5193896A (en) * 1992-01-13 1993-03-16 Seymour Oberlander Lighting device for personal use

Similar Documents

Publication Publication Date Title
GB971866A (en) Portable electric flashlight
FR2372382A1 (en) Battery powered torch switch - has transparent cap which is screwed in against sprung reflector to press bulb holder against annular contact
GB986825A (en) Circuit controlling mechanism
GB893047A (en) Improvements in or relating to illuminated push-button-type electric switches
GB891629A (en) Indicator lights
US2513071A (en) Electric flashlight
GB884212A (en) Improvements in or relating to electric torches
GB770611A (en) Improvements in wrenches having torque recording means thereon
GB1105970A (en) Improvements relating to opthalmoscopes and like diagnostic instruments
GB847648A (en) Improvements in or relating to electric switches and indicators therefor
GB779272A (en) Improvements in or relating to impulse operated electric switching means
GB924025A (en) Toy slide projector
GB1337217A (en) Pocket lamp
FR2419581A1 (en) Circuit breaker with integral indicating fuse - having discharge lamp with series resistor, and light guide terminating in rocker arm
GB1043034A (en) Electric hand lantern
GB794452A (en) Improvements in or relating to flashlights
GB1018088A (en) Battery-operated torches
GB1006368A (en) Portable lamp
GB774386A (en) Improvements in or relating to portable battery and cycle electric lamps
GB830221A (en) Improvements in or relating to electric torches
GB1071587A (en) Improvements in portable radios
GB583776A (en) Improvements in or relating to electric switches of the push-button type
GB1070290A (en) Electric torch
GB893344A (en) Improvements in or relating to electric torches
GB1183959A (en) Electric Switch with Coil Spring Contact