GB812980A - Improvements in and relating to electric battery lamps - Google Patents

Improvements in and relating to electric battery lamps

Info

Publication number
GB812980A
GB812980A GB13528/56A GB1352856A GB812980A GB 812980 A GB812980 A GB 812980A GB 13528/56 A GB13528/56 A GB 13528/56A GB 1352856 A GB1352856 A GB 1352856A GB 812980 A GB812980 A GB 812980A
Authority
GB
United Kingdom
Prior art keywords
lamp
head
casing
reflector
contact
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
GB13528/56A
Inventor
Vernon Walter Meager
Stuart Netherwood Barker
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.)
B M LAMPS Ltd
Original Assignee
B M LAMPS Ltd
Filing date
Publication date
Application filed by B M LAMPS Ltd filed Critical B M LAMPS Ltd
Publication of GB812980A publication Critical patent/GB812980A/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
    • F21V31/00—Gas-tight or water-tight arrangements
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F21V14/045—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors in portable lighting devices
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

812,980. Electric battery lamps. B. M. LAMPS Ltd. May 1, 1957 [May 2, 1956; Dec. 5, 1956], Nos. 13528/56 and 37161/56. Addition to 742,804. Class 39(2) In an electric battery lamp of the type in the parent Specification wherein the bulb 'holding reflector or lamp head is partially rotatable to provide switching on and off of the lamp current, the reflector or head is also axially movable or can be tilted to permit intermittent lighting of the lamp. The cap has a casing 13 closed at one end, the opposite end being flared and terminating in a cylindrical extension 14, Fig. 1, round which is fitted a rubber collar 31 having grooves holding the front glass of the lamp and the bulb holding reflector 27, the latter being out of contact with the casing 13 and carrying on its inner end a spider 34 having three contact arms 36. A metal ring 17, Fig. 6 having three sectors 19 separated by gaps is mounted in the casing 13 and carries three insulating pads 21, Fig. 7, each covering about three-quarters of a sector and divided by radial humps into two parts, over one of which a shorter pad 22 is mounted. Rotation of the lamp head from the position shown in Fig. 1 brings the arms 36 into contact with sectors 19 for switching on the lamp, and rotation of the head in the reverse direction brings the arms 36 between the pads 21, 22 thereby locking the head against axial motion. In the intermediate position, pressure on the head brings the rim 26 of the reflector into contact with the lamp casing 13, thereby lighting the lamp. The collar 31 terminates in a bead 33 gripping the casing to prevent ingress of dust and moisture. A lockable safety ring may be secured over the collar to prevent unauthorised removal.
GB13528/56A 1956-05-02 Improvements in and relating to electric battery lamps Expired GB812980A (en)

Publications (1)

Publication Number Publication Date
GB812980A true GB812980A (en) 1959-05-06

Family

ID=1728597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13528/56A Expired GB812980A (en) 1956-05-02 Improvements in and relating to electric battery lamps

Country Status (1)

Country Link
GB (1) GB812980A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725932A (en) * 1986-05-14 1988-02-16 Gammache Richard J Miniature flashlight
US4777582A (en) * 1987-09-16 1988-10-11 Streamlight, Inc. Micro-flashlight
US4807097A (en) * 1986-05-14 1989-02-21 Gammache Richard J Miniature flashlight
GB2211924A (en) * 1987-10-30 1989-07-12 Accurist Electric torch
US4875146A (en) * 1985-08-21 1989-10-17 Duracell Inc. Flashlight bulb mounting
US4888670A (en) * 1987-09-16 1989-12-19 Streamlight, Inc. Micro-flashlight
US5003440A (en) * 1989-05-17 1991-03-26 Mag Instrument, Inc. Tailcap insert
US5207502A (en) * 1984-09-06 1993-05-04 Mag Instrument, Inc. Miniature flashlight
US5349506A (en) * 1984-09-06 1994-09-20 Mag Instrument, Inc. Miniature flashlight
US5590951A (en) 1994-12-21 1997-01-07 Laser Products Ltd. Switch-less flashlights
US5642932A (en) 1994-12-22 1997-07-01 Laser Products Corporation Combat-oriented flashlight
US5806964A (en) * 1984-09-06 1998-09-15 Mag Instrument, Inc. Miniature flashlight
US6135611A (en) * 1991-06-21 2000-10-24 Mag Instrument, Inc. Miniature flashlight
EP1020680A3 (en) * 1999-01-14 2001-10-10 Stefano Canale Underwater torch with rechargeable battery pack
US6733152B2 (en) 1991-06-21 2004-05-11 Mag Instrument, Inc. Flashlight
US6991360B2 (en) 2001-08-16 2006-01-31 Mag Instrument, Inc. Flashlight with a light source aligned with a reflector axis
US8210709B2 (en) 2004-03-16 2012-07-03 Mag Instrument, Inc. Apparatus and method for aligning a substantial point source of light with a reflector feature
US8366290B2 (en) 2009-01-14 2013-02-05 Mag Instrument, Inc. Portable lighting device
USD844874S1 (en) 2017-12-11 2019-04-02 Streamlight, Inc. Lighting device
USD846783S1 (en) 2017-12-08 2019-04-23 Streamlight, Inc. Lighting device
USD851797S1 (en) 2017-09-20 2019-06-18 Streamlight, Inc. Lighting device

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806964A (en) * 1984-09-06 1998-09-15 Mag Instrument, Inc. Miniature flashlight
US5722765A (en) * 1984-09-06 1998-03-03 Mag Instrument, Inc. Tailcap for a flashlight
US5207502A (en) * 1984-09-06 1993-05-04 Mag Instrument, Inc. Miniature flashlight
US5349506A (en) * 1984-09-06 1994-09-20 Mag Instrument, Inc. Miniature flashlight
US5485360A (en) * 1984-09-06 1996-01-16 Mag Instrument, Inc. Miniature flashlight
US6170960B1 (en) 1984-09-06 2001-01-09 Mag Instrument Inc. Miniature flashlight
US4875146A (en) * 1985-08-21 1989-10-17 Duracell Inc. Flashlight bulb mounting
US4725932A (en) * 1986-05-14 1988-02-16 Gammache Richard J Miniature flashlight
US4807097A (en) * 1986-05-14 1989-02-21 Gammache Richard J Miniature flashlight
US4777582A (en) * 1987-09-16 1988-10-11 Streamlight, Inc. Micro-flashlight
US4888670A (en) * 1987-09-16 1989-12-19 Streamlight, Inc. Micro-flashlight
GB2211924A (en) * 1987-10-30 1989-07-12 Accurist Electric torch
US5003440A (en) * 1989-05-17 1991-03-26 Mag Instrument, Inc. Tailcap insert
US6135611A (en) * 1991-06-21 2000-10-24 Mag Instrument, Inc. Miniature flashlight
US7641359B2 (en) 1991-06-21 2010-01-05 Mag Instrument, Inc. Flashlight
US7320530B2 (en) 1991-06-21 2008-01-22 Mag Instrument, Inc. Flashlight
US7070296B2 (en) 1991-06-21 2006-07-04 Mag Instrument, Inc. Flashlight
US6361183B1 (en) 1991-06-21 2002-03-26 Mag Instrument, Inc. Flashlight
US6575592B2 (en) 1991-06-21 2003-06-10 Mag Instrument, Inc. Flashlight
US6733152B2 (en) 1991-06-21 2004-05-11 Mag Instrument, Inc. Flashlight
US5590951A (en) 1994-12-21 1997-01-07 Laser Products Ltd. Switch-less flashlights
US5642932A (en) 1994-12-22 1997-07-01 Laser Products Corporation Combat-oriented flashlight
EP1020680A3 (en) * 1999-01-14 2001-10-10 Stefano Canale Underwater torch with rechargeable battery pack
US6991360B2 (en) 2001-08-16 2006-01-31 Mag Instrument, Inc. Flashlight with a light source aligned with a reflector axis
US8210709B2 (en) 2004-03-16 2012-07-03 Mag Instrument, Inc. Apparatus and method for aligning a substantial point source of light with a reflector feature
US8366290B2 (en) 2009-01-14 2013-02-05 Mag Instrument, Inc. Portable lighting device
USD851797S1 (en) 2017-09-20 2019-06-18 Streamlight, Inc. Lighting device
USD846783S1 (en) 2017-12-08 2019-04-23 Streamlight, Inc. Lighting device
USD844874S1 (en) 2017-12-11 2019-04-02 Streamlight, Inc. Lighting device

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