US1649295A - Lamp focusing - Google Patents
Lamp focusing Download PDFInfo
- Publication number
- US1649295A US1649295A US5531A US553125A US1649295A US 1649295 A US1649295 A US 1649295A US 5531 A US5531 A US 5531A US 553125 A US553125 A US 553125A US 1649295 A US1649295 A US 1649295A
- Authority
- US
- United States
- Prior art keywords
- lamp
- casing
- screw
- reflector
- focusing
- 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
Links
- 239000000463 material Substances 0.000 description 2
- 229940020445 flector Drugs 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
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
- 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
Definitions
- This invention relates to lamp focusing and'is'herein shown'as embodied in a focus ing device for adjusting the lamp of an auto mobile headlight.
- One of the objects of the invention is to provide a focusing device that can be completely assembled and then, without removing any parts, attached to a casing or the like from one side thereof. Another object is to provide a focusing device which can be very quickly attached to or removed from the lamp structure and this without operating any screws, bolts or other special fastenings.
- Figure 1 is a side elevation, partly in vertical section, of a headlight.
- Figure 2 is a rear View, broken away.
- Figure 3 is a central vertical section.
- Figure 4 is a rear view of a portion of the casing with the focusing device removed.
- the numerallO indicates a reflector with a sleeve 12 extending rearwardly from its middle portion and all enclosed in a lamp casing 14.
- the sleeve 12 slidably receives a lamp socket 16 carrying the usual lamp bulb 18.
- the sleeve 12 is slotted on its under side at which point a right angular plate 20 is attachedto the lamp socket 16.
- One angle of the plate is threaded to receive an adjusting screw 22 having an enlargement 24. preferably an integral collar, outside of which the screw is slotted, as at 26, so it can be turned.
- a wall member 28 which might bethe reflect-or but is preferably the rear wall of the casing 14:. is an opening 30 of a size to allow the enlargement or collar 24 to pass.
- the opening can be conveniently formed by cutting a slot in the wall and then extruding the metal in opposite directions from the 2931925. seriar'No. 5,531.
- a coil spring 38 Surrounding the screw 22 is a coil spring 38 abutting at one end against the plate 20 and abutting at the other end against a dished washer 40.
- the washer 40 has its concave side facing rearwardly to fit against the front face of the extruded projection 32, thus holding the screw and attached parts yieldingly in a substantially horizontal position and also furnishing means which would prevent undesired axial movement of the screw without using the projection 34.
- the focusing device comprising, for example, the screw 22, washer 40, spring38, plate 20, and socket 16 is assembled as a unit and attached to the casing before the reflector or the lamp bulb is applied.
- the screw 22 is tilted downwardly towards the front in order that the collar 24 may pass through the opening and engage behind the projection 82.
- the washer 40 will yield against the tension of spring 38 to permit'the projection 82 to come between the collar and the washer.
- the re 7 flector is then inserted in the casing, the sleeve 12 being slipped over the socket 16 and centering the latter.
- the lamp bulb is then placed. in the socket.
- a reflector in combination, a reflector, a lamp movable with respect to the reflector, a rotary lamp adjusting member connected to the lamp and having an enlargement, a lamp casing, and offset projections on the casing detachably engaging axially spaced sides of said enlargement, to hold said lamp adjusting member against axial movement.
- a spring pressed clamping device mounted on said rotatable lamp adjusting member adapted to yieldingly engage the inner surface of the casing to hold the adjusting member in adjusted position.
- adjusting means for the lamp comprising an adjusting screw, a projection extending from a wall of said casing and forming therewith a socket accessible from the interior of the casing for receiving the head of said screw to hold it in position, said screw being normally engaged with said projection from the front of the casing, and said casing being provided with an aperture aligned with said screw to permit access to the head thereof for manipulation.
Description
Nov. 15, 192 7.
H. c. FOSTER LAMP FOCUSING Filed Jan. 29 1925 Fig. 4.
INVEN TOR fMQ/QY C R3722 Patented Nov. 15, 1927,
UNITED STATES JPATENT OFFICE.
HAEEY o. EosTEE,-oE CONNERSVILLE; INDIA A; AssI NoE, BYDIREGT AND MEsNE ASSIGNMENTS, 0E ONE-HALF TO INDIANA LAMP conroRATIoN, or CONNERSVILLE, INDIAN A coEro'EATIoN-oE DELAWARE, AND oN ALE To GENERAL MoTons coEPoEATIoN, or DETROIT, MICHIGAN, A conronATIoN or DELAWARE.
LAMP Eoc usnve.
Application filed January This invention relates to lamp focusing and'is'herein shown'as embodied in a focus ing device for adjusting the lamp of an auto mobile headlight.
On automobile headlights, .it is common practice to provide lamp focusing devices but these cannot be attached, as a complete assembled unit, to a lamp structure; they require the assembly of some parts from inside the reflector or casing and of others from outside the reflector or casing.
One of the objects of the invention, therefore, is to provide a focusing device that can be completely assembled and then, without removing any parts, attached to a casing or the like from one side thereof. Another object is to provide a focusing device which can be very quickly attached to or removed from the lamp structure and this without operating any screws, bolts or other special fastenings.
To these ends and also to improve gen erally upon devices of the character indicated my invention consists in the various matters hereinafter describedand claimed.
In the drawings, Figure 1 is a side elevation, partly in vertical section, of a headlight.
Figure 2 is a rear View, broken away.
Figure 3 is a central vertical section.
Figure 4 is a rear view of a portion of the casing with the focusing device removed.
Referring to the drawings, the numerallO indicates a reflector with a sleeve 12 extending rearwardly from its middle portion and all enclosed in a lamp casing 14. The sleeve 12 slidably receives a lamp socket 16 carrying the usual lamp bulb 18. The sleeve 12 is slotted on its under side at which point a right angular plate 20 is attachedto the lamp socket 16. One angle of the plate is threaded to receive an adjusting screw 22 having an enlargement 24. preferably an integral collar, outside of which the screw is slotted, as at 26, so it can be turned.
On a wall member 28,which might bethe reflect-or but is preferably the rear wall of the casing 14:. is an opening 30 of a size to allow the enlargement or collar 24 to pass. The opening can be conveniently formed by cutting a slot in the wall and then extruding the metal in opposite directions from the 2931925. seriar'No. 5,531.
body of the wall. This forms,*adjacent to "the opening, two'projections '32 and 84, the "first affording a'seator abutment for'the inner sideof the enlargement or collar24 and the other covering the upper part of the collar and forming an abutment and shield for its outer side. The projections prevent axial movement of the screw 22 but allow its rotation. A semicircular edge 36 on the projection 32 conforms to an unthreaded portion of the screw 22 in front of the enlargement or collar 24.
Surrounding the screw 22 is a coil spring 38 abutting at one end against the plate 20 and abutting at the other end against a dished washer 40. The washer 40 has its concave side facing rearwardly to fit against the front face of the extruded projection 32, thus holding the screw and attached parts yieldingly in a substantially horizontal position and also furnishing means which would prevent undesired axial movement of the screw without using the projection 34.
The focusing device,-comprising, for example, the screw 22, washer 40, spring38, plate 20, and socket 16 is assembled as a unit and attached to the casing before the reflector or the lamp bulb is applied. The screw 22 is tilted downwardly towards the front in order that the collar 24 may pass through the opening and engage behind the projection 82. During this operation, the washer 40 will yield against the tension of spring 38 to permit'the projection 82 to come between the collar and the washer. The re 7 flector is then inserted in the casing, the sleeve 12 being slipped over the socket 16 and centering the latter. The lamp bulb is then placed. in the socket.
I claim:
1. In a device of the character described, in combination, a reflector, a lamp movable with respect to the reflector, a rotary lamp adjusting member connected to the lamp and having an enlargement, a lamp casing, and offset projections on the casing detachably engaging axially spaced sides of said enlargement, to hold said lamp adjusting member against axial movement.
2. The combination of a lamp casing having a slot formed in a wall thereof, the material of the casing at one side of the slot being offset from the material at the other side o1 the slot, and a rotatable lamp adjusting member mounted in said slot and provided with means for engaging the adjacent surfaces of the opposite edges of the slot to hold the member against axial movement.
3. in the combination as defined in claim 2, a spring pressed clamping device mounted on said rotatable lamp adjusting member adapted to yieldingly engage the inner surface of the casing to hold the adjusting member in adjusted position.
4. The combination of a lamp casing, a reflector in the casing, a lamp adjustable in the reflector; adjusting means for the lamp comprising an adjusting screw, a projection extending from a wall of said casing and forming therewith a socket accessible from the interior of the casing for receiving the head of said screw to hold it in position, said screw being normally engaged with said projection from the front of the casing, and said casing being provided with an aperture aligned with said screw to permit access to the head thereof for manipulation.
5. The combination as defined in claim i, and yieldable means mounted on said adjusting screw for engaging the inner wall of the lamp casing to prevent outward axial movement of said screw.
In testimony whereof I affix my signature.
HARRY c FOSTER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5531A US1649295A (en) | 1925-01-29 | 1925-01-29 | Lamp focusing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5531A US1649295A (en) | 1925-01-29 | 1925-01-29 | Lamp focusing |
Publications (1)
Publication Number | Publication Date |
---|---|
US1649295A true US1649295A (en) | 1927-11-15 |
Family
ID=21716339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US5531A Expired - Lifetime US1649295A (en) | 1925-01-29 | 1925-01-29 | Lamp focusing |
Country Status (1)
Country | Link |
---|---|
US (1) | US1649295A (en) |
-
1925
- 1925-01-29 US US5531A patent/US1649295A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1421506A (en) | Headlight | |
US2266329A (en) | Head lamp mounting | |
US5126924A (en) | Motor vehicle headlamp | |
US3538324A (en) | Variable beam spotlamp | |
US3594569A (en) | Rectangular adjustable headlamp assembly for road vehicles | |
US2138076A (en) | Lighting unit mounting | |
US1649295A (en) | Lamp focusing | |
US1969714A (en) | Headlight lens | |
US2911523A (en) | Headlamp adjuster | |
US1333033A (en) | Glare-preventing device for headlights | |
US2267707A (en) | Automobile headlight adapter support | |
US2285591A (en) | Headlight adapter | |
US1614650A (en) | Headlight | |
US1562875A (en) | Automobile headlight | |
US2147734A (en) | Lamp | |
US1602898A (en) | Focusing device | |
US1651042A (en) | Automobile headlight | |
US3953724A (en) | Apparatus for adjusting the light source position of a light source assembly | |
US2138082A (en) | Vehicle lamp and mounting for the same | |
US1647149A (en) | Headlight | |
US2138077A (en) | Lighting unit mounting | |
US1273084A (en) | Search-light. | |
US1810177A (en) | Interior telescoping rim head lamp | |
US1680168A (en) | Automobile headlight | |
US2003687A (en) | Headlight |