US1679574A - Lamp-focusing mechanism - Google Patents

Lamp-focusing mechanism Download PDF

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Publication number
US1679574A
US1679574A US166424A US16642427A US1679574A US 1679574 A US1679574 A US 1679574A US 166424 A US166424 A US 166424A US 16642427 A US16642427 A US 16642427A US 1679574 A US1679574 A US 1679574A
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US
United States
Prior art keywords
lamp
reflector
strap
focusing mechanism
casing
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 - Lifetime
Application number
US166424A
Inventor
Samuel W Hyatt
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.)
INDIANA LAMP Corp
Original Assignee
INDIANA LAMP CORP
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 INDIANA LAMP CORP filed Critical INDIANA LAMP CORP
Priority to US166424A priority Critical patent/US1679574A/en
Application granted granted Critical
Publication of US1679574A publication Critical patent/US1679574A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

Aug. 7, 1928. 1,679,574
5. w. HYATT I LAMP FOCUSING MECHANISM Filed Feb. '7, 1927 INVENTOR.
34/705; M Hrfirn Mfl/M I ATTT EYS.
Patented Aug. 7, 1928.
UNITED STATES PATENT OFFICE,
SAMUEL VJ. HYAT'I, OF GONNERSVILLE, INDIANA, ASSIGNOR T INDIANA LAMP COR- PORATION, 0F CONNERSVILLE, INDIANA, A CORPORATION.
LAMP-FOCUSING MECHANISM.
Application filed February 7, 1927. Serial No. 166,424.
This invention relates to a focusing device for lamps.
The chief object of this invention is to provide a simple focusing device for lights including a reflector and lamp.
The chief feature of the invention cons'sts in providing a lamp or lamp socket opening in the reflector and mounting the lamp on a shiftable member for relative movement in said opening.
The full nature of the invention will bev understood from the accompanying drawings and the following description and claims:
In the drawings Fig. 1 is a central sectional view of a head light including the invention. Fig. 2 is a rear View of the invention.
In the drawings indicates a suitable support for a casing 11 having a closure 12 and containing a light bulb or lamp 13 and a reflector 14 suitably supported as by the bracket 15 carried by the casing.
The reflector 14 has an elongated central opening 16 and positioned therein and extendin oppositely therethrough herein is shown a lamp socket 17 supporting the lamp bulb 13. Said socket is carried by a ferrule 18 formed on and extending rearwardly from a strap 19 which is flexible laterally and which is curved to conform to the rear curvature of the reflector 14. The opposite ends of said strap 19 constitute the anchorages and herein the lower end is shown offset as at 20 to receive a spring21 suitably anchored at 22 to the reflector or the casing if desired. The upper end of the strap 19 is apertured as at 23 to receive a hook 24 carried by a supporting member 25 which has a threaded anchorage at 26 with an adjusting or threaded bolt 27 carried by the bracket 15.
adjusted within the casing to the desired position and the light bulb 13 may be adusted relatively thereof by threading in or out the adjusting bolt 2'7. This serves to move light bulb 13 with socket 18 upwardly or downwardly in the elongated opening 16 of the reflector, thereby positioning the light bulb as des'red. The spring21 has suflicient yield to permit the aforesaid adjustment,
but. is strong enough to prevent any shifting of the socket by reason of vibration.
The invention claimed is:
1. In a lamp the combination of a casing, a reflector therein having an elongated centrally positioned aperture, a light bulb support positioned therein, a strap positioned adjacent said reflector and having a rigid j connection with said light'bulb support for supporting the same in adjusted position in said aperture, a member simultaneously securing said reflector to the casing and adjustably but rigidly supporting one end of said strap, and yielding means connecting the opposite end of said strap to said reflector.
tion in said elongated opening, yielding ment between said strap and reflector for one end of said strap, adjusting means associated with said reflector and other end of said strap for securing relative movement between said strap and reflector for adjusting the position of said light bulb support.
In witness whereof, I my signature. As shown in Fig. 1, the reflector may be have hereunto ailixed SAMUEL w. I-IYATT.
US166424A 1927-02-07 1927-02-07 Lamp-focusing mechanism Expired - Lifetime US1679574A (en)

Priority Applications (1)

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US166424A US1679574A (en) 1927-02-07 1927-02-07 Lamp-focusing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US166424A US1679574A (en) 1927-02-07 1927-02-07 Lamp-focusing mechanism

Publications (1)

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US1679574A true US1679574A (en) 1928-08-07

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US166424A Expired - Lifetime US1679574A (en) 1927-02-07 1927-02-07 Lamp-focusing mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866577A (en) * 1987-07-31 1989-09-12 Daimler-Benz Ag Motor vehicle headlamp
US6517222B1 (en) 2001-08-01 2003-02-11 Linear Lighting Corp. System and method for leveling suspended lighting fixtures and a longitudunal axis
WO2017191492A1 (en) 2016-05-04 2017-11-09 Turbosaam Sarl Savonius rotor, rotor module, installation and applications thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866577A (en) * 1987-07-31 1989-09-12 Daimler-Benz Ag Motor vehicle headlamp
US6517222B1 (en) 2001-08-01 2003-02-11 Linear Lighting Corp. System and method for leveling suspended lighting fixtures and a longitudunal axis
WO2017191492A1 (en) 2016-05-04 2017-11-09 Turbosaam Sarl Savonius rotor, rotor module, installation and applications thereof

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