GB549104A - Improvements in electric torches - Google Patents

Improvements in electric torches

Info

Publication number
GB549104A
GB549104A GB13162/40A GB1316240A GB549104A GB 549104 A GB549104 A GB 549104A GB 13162/40 A GB13162/40 A GB 13162/40A GB 1316240 A GB1316240 A GB 1316240A GB 549104 A GB549104 A GB 549104A
Authority
GB
United Kingdom
Prior art keywords
spring
barrel
torch
lamp
sleeve
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
GB13162/40A
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.)
JOHN SAUNDERS WEBSTER
Original Assignee
JOHN SAUNDERS WEBSTER
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 JOHN SAUNDERS WEBSTER filed Critical JOHN SAUNDERS WEBSTER
Priority to GB13162/40A priority Critical patent/GB549104A/en
Publication of GB549104A publication Critical patent/GB549104A/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/04Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • F21V19/047Fastening of light sources or lamp holders with provision for changing light source, e.g. turret by using spare light sources comprised in or attached to the lighting device and being intended to replace a defect light source by manual mounting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L15/00Details of kinds solely applicable to the devices covered by groups F21L2/00 - F21L14/00
    • F21L15/02Details of kinds solely applicable to the devices covered by groups F21L2/00 - F21L14/00 concerned with light emission or distribution
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00Systems of electric lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment

Abstract

549,104. Electric torches. WEBSTER, J. S. Aug. 17, 1940, No. 13162. [Class 39 (ii)] In an electric torch, the usual screwed head 16 carrying the glass cover plate and the reflector is made a sliding fit on the barrel and may be pushed out by the thumb against the action of the spring 18 so as to alter the focus of the lamp and may be rotated to switch the lamp on. The head carries a contact plate 14 recessed within its inner surface to co-operate with a metal tongue 1.3 integral with or attached to the lamp socket which is thus in connection via the spring 18 with the torch barrel the inside of which is connected by the tongue 41 with the spring 42 which engages the negative pole of the battery. The spring 42 is carried by the closure member of a sleeve having a bayonet-slot attachment to the end of the barrel of the torch and an end cap 29 screws on to the sleeve.
GB13162/40A 1940-08-17 1940-08-17 Improvements in electric torches Expired GB549104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13162/40A GB549104A (en) 1940-08-17 1940-08-17 Improvements in electric torches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13162/40A GB549104A (en) 1940-08-17 1940-08-17 Improvements in electric torches

Publications (1)

Publication Number Publication Date
GB549104A true GB549104A (en) 1942-11-06

Family

ID=10017993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13162/40A Expired GB549104A (en) 1940-08-17 1940-08-17 Improvements in electric torches

Country Status (1)

Country Link
GB (1) GB549104A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777582A (en) * 1987-09-16 1988-10-11 Streamlight, Inc. Micro-flashlight
US4888670A (en) * 1987-09-16 1989-12-19 Streamlight, Inc. Micro-flashlight
EP0670453A1 (en) * 1993-05-11 1995-09-06 Kyoyu Corporation Flashlight with signal lamp
US5806964A (en) * 1984-09-06 1998-09-15 Mag Instrument, Inc. Miniature flashlight
US6991360B2 (en) 2001-08-16 2006-01-31 Mag Instrument, Inc. Flashlight with a light source aligned with a reflector axis
USRE40171E1 (en) 1998-01-26 2008-03-25 Mag Instrument, Inc. Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability
US8147090B2 (en) 1998-01-26 2012-04-03 Mag Instrument, Inc. Flashlight
US8197083B2 (en) 2000-08-10 2012-06-12 Mag Instrument, Inc. Lighting device
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

Cited By (14)

* 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
US6170960B1 (en) 1984-09-06 2001-01-09 Mag Instrument Inc. 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
EP0670453A1 (en) * 1993-05-11 1995-09-06 Kyoyu Corporation Flashlight with signal lamp
EP0670453A4 (en) * 1993-05-11 1995-11-15 Kyoyu Corp Flashlight with signal lamp.
US8147090B2 (en) 1998-01-26 2012-04-03 Mag Instrument, Inc. Flashlight
USRE40171E1 (en) 1998-01-26 2008-03-25 Mag Instrument, Inc. Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability
US8197083B2 (en) 2000-08-10 2012-06-12 Mag Instrument, Inc. Lighting device
US8770784B2 (en) 2000-08-10 2014-07-08 Mag Instrument, Inc. Lighting device
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

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