GB292836A - Improvements in portable electric lamps - Google Patents

Improvements in portable electric lamps

Info

Publication number
GB292836A
GB292836A GB29942/27A GB2994227A GB292836A GB 292836 A GB292836 A GB 292836A GB 29942/27 A GB29942/27 A GB 29942/27A GB 2994227 A GB2994227 A GB 2994227A GB 292836 A GB292836 A GB 292836A
Authority
GB
United Kingdom
Prior art keywords
reflector
lens
cap
knob
engaging
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
GB29942/27A
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 GB29942/27A priority Critical patent/GB292836A/en
Publication of GB292836A publication Critical patent/GB292836A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

292,836. Rogge, B. Nov. 8, 1927. Battery lamps.-In a portable electric lamp the reflector, or the top cap, or both, are directly connected to the switch member so as to be moved with it with respect to a stationary incandescent bulb to vary the illumination. In the form shown in Fig. 2, the top cap 4 carrying a lens 5 is fitted with a strip 7 which is resiliently slipped over the switch knob 6 and the reflector 10 is fixed. In the form shown in Fig. 4, the reflector 10 is fixed to the contact spring 8 of the knob 6 and the top cap may carry a lens or a plane glass. In the form shown in Figs. 5 and 7, the reflector 10 is fixed to the top cap 4 which carries a lens 5 or a plane glass and is provided with a bayonet slot 11 for engaging over the knob 6. The shank 12 of the knob 6 is provided with a collar 12<1> capable of engaging a recess 14 at the end of the transverse arm of the slot 11, and which may be pushed into a recess 14<1> in the casing 1. This allows the cap to be removed only when the lamp is switched off. Fig. 8 shows a slight modification in which the lens 5 has an octagonal flange fitting into an octagonal flange 23 on the lens cap 4 which is secured to the casing 1 by means of a spring-pressed pin 20 engaging a slot 19 in an apron 18 depending from the cap. Fig. 11 shows a stand or bicycle lamp in which the switch member is in the form of a nut 6<1> engaging a screwed spindle 14 connected to the reflector 10. A rail contact is carried by a cylinder 16 at the rear of the reflector and engages a spring contact fixed to an internal partition 17.
GB29942/27A 1927-11-08 1927-11-08 Improvements in portable electric lamps Expired GB292836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29942/27A GB292836A (en) 1927-11-08 1927-11-08 Improvements in portable electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29942/27A GB292836A (en) 1927-11-08 1927-11-08 Improvements in portable electric lamps

Publications (1)

Publication Number Publication Date
GB292836A true GB292836A (en) 1928-06-28

Family

ID=10299709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29942/27A Expired GB292836A (en) 1927-11-08 1927-11-08 Improvements in portable electric lamps

Country Status (1)

Country Link
GB (1) GB292836A (en)

Cited By (4)

* 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
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

Cited By (5)

* 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
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

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