GB169761A - Improvements in or connected with electric lamps particularly adapted to be carried or supported on the person - Google Patents
Improvements in or connected with electric lamps particularly adapted to be carried or supported on the personInfo
- Publication number
- GB169761A GB169761A GB1520620A GB1520620A GB169761A GB 169761 A GB169761 A GB 169761A GB 1520620 A GB1520620 A GB 1520620A GB 1520620 A GB1520620 A GB 1520620A GB 169761 A GB169761 A GB 169761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- holder
- electric
- elbow
- oldham
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
169,761. Oldham, G., and Oldham, J. June 4, 1920. Head lamps, personal; lanterns, glazing. - Electric lamps adapted to be attached to miners' caps &c., comprise a glazed casing 10 having an external tubular extension adapted to contain the electric contacts, and which is detachably secured to the casing by means of the holder for the electric bulb 19. In the construction shown in Fig. 1, the holder 20 is clamped against an abutment 26 in the elbow 21, and the elbow is secured to the lamp casing 10 by a nut 35 on the holder 20, the elbow having lugs 22 engaging notches in the casing 10 to prevent it from rotating. In the construction shown in Fig. 6, the external tubular extension 21b is clamped to the casing 10 by a flange 24 on the holder 20. The ring 11 that secures the lens 12 and the reflector 13 is provided with a rib 17 adapted to be engaged with a claw 14, Fig. 2, pivoted at 15 to the casing 10, registering apertures 18 being provided for the insertion of a seal. The user's cap is provided in the front with a plate fitted with a socket to receive the spring clip 48 of the lamp, and at the back with a strap 52, Fig. 10, which is passed through a tab 49a after the electric cable C has been placed behind it, thus serving to hold the cable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1520620A GB169761A (en) | 1920-06-04 | 1920-06-04 | Improvements in or connected with electric lamps particularly adapted to be carried or supported on the person |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1520620A GB169761A (en) | 1920-06-04 | 1920-06-04 | Improvements in or connected with electric lamps particularly adapted to be carried or supported on the person |
Publications (1)
Publication Number | Publication Date |
---|---|
GB169761A true GB169761A (en) | 1921-10-04 |
Family
ID=10054893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1520620A Expired GB169761A (en) | 1920-06-04 | 1920-06-04 | Improvements in or connected with electric lamps particularly adapted to be carried or supported on the person |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB169761A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651301A (en) * | 1951-11-01 | 1953-09-08 | Welch Allyn Inc | Headlamp for physicians and surgeons |
-
1920
- 1920-06-04 GB GB1520620A patent/GB169761A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651301A (en) * | 1951-11-01 | 1953-09-08 | Welch Allyn Inc | Headlamp for physicians and surgeons |
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