US572431A - Electric lamp - Google Patents
Electric lamp Download PDFInfo
- Publication number
- US572431A US572431A US572431DA US572431A US 572431 A US572431 A US 572431A US 572431D A US572431D A US 572431DA US 572431 A US572431 A US 572431A
- Authority
- US
- United States
- Prior art keywords
- lamp
- reflector
- casing
- electric lamp
- screw
- 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
- 210000001847 Jaw Anatomy 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/02—Headlights
- B62J6/028—Headlights specially adapted for rider-propelled cycles with or without additional source of power
- B62J6/029—Headlights specially adapted for rider-propelled cycles with or without additional source of power characterised by the structure, e.g. casings
Definitions
- This invention relates particularly to electric lamps for traveling vehicles, such as bicycles, carriages, cars, and the like; and the object is to provide a lamp that will produce a strong and brilliant light and in which the focus may be easily and quickly adjusted.
- Figure 1 is a side elevation of a lamp embodying my invention.
- Fig. 2 is a longitudinal section thereof, and
- Fig. 3 is a transverse section.
- the lamp comprises a metal casing 1, having a closure 2 mounted to rotate on its rear end and a lens 3 removably secured in its front end.
- the lens is here shown as a planoconvex lens; but the form may be changed without departing from the spirit of my invention, although I find the form shown to be one giving good results.
- a convex reflector 4 Arranged to slide longitudinally in the casing 1 is a convex reflector 4, having a socket 5 in its front central portion to receive an incandescent lamp 6.
- the reflector is guided in its movements and prevented from rotating relatively to the casing by means of a rib 7,
- I provide the edge of the reflector with a spring-yielding flange 9, adapted to engage against the inner side of the casing.
- a tubular screw-shaft 10 Attached to the reflector and extended rearward through a tapped hole in the end closure 2 is a tubular screw-shaft 10, of insulating material, and extended through this tubular shaft is a conductor-rod 11, the front end of which is in electrical engagement with one lead of the lamp 6.
- a clamp-ring 12 open at its ends and having outwardly-extended perforated lugs 13, through which a clamping-screw 14 passes.
- a clamping-screw 14 passes by turning the screw 14 the ring may be securely clamped to a support.
- Extended radially from the clampingring is a jaw portion 15, and mounted to slide relatively to the jaw portion 15 is a jaw portion 16.
- This j aw portion 16 is held from rotary motion by means of a pin 17, extended from the ring into an opening in the jaw' portion 16, and upon this pin the said jaw portion is adapted to slide.
- a set-screw 18 passes transversely through a hole in the fixed jaw portion 15 and engages in a tapped hole in the jaw portion 16, and on this set-screw between tended downward and rearward from the lamp-casing 1. It will be seen that by this construction the lamp may be adjusted and clamped in any desired position, either to throw the light directly forward or at any vertical inclination.
- the metal parts may be made of aluminium.
- the conductor-rod 11 is provided with a binding-nut 20 for engaging a wire 21, leadin g from a generator, and the other lead-wire 22 is here shown as connected to a bindingpost 23 on the clamp-ring 12. The current, therefore, will be conveyed to the lamp 6 through the lamp-casing and reflector and through the conductor-rod 11.
- An electric lamp comprising a metal casing, a lens in its forward end, a reflector adj ustable longitudinally in the casing, an incandescent-lamp socket carried by the reflector, means for causing the adjustments of the reflector, and means for carrying an electric current to a lamp in the socket, substantially as specified.
- An electric lamp comprising a metal casthe jaws is pivotally mounted an arm 19, eX-
- a closure mounted to rotate on the other end thereof, a reflector mounted to move longitudinally in the casing, a lamp-socket on said reflector, a tubular screw-rod of insulating material, extended from the reflector through a tapped hole in the end closure, and a conductor rod passing through said tubular screw-rod, substantially as specified.
Description
(No Model.)
I. B. MAGEB. ELECTRIC! LAMP.
No. 572,431. Patented Dec. .1, 1896-.
I I (glgmrofl mz/ .9 Cygp Q A TTOHNE Y8.
UNITED STATES FRANCIS E. MAGEE, or
PATENT OFFICE.
BROOKLYN, NEXV YORK.
ELECTRIC LAM P.
SPECIFICATION forming part of Letters Patent No. 572,431, dated December 1, 1896.
Application filed March 25,1896. Serial No. 584,853. (No modeL) To all whom/it may concern:
Be it known that I, FRANCIS E. MAGEE, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in ElectricLamps, of which the following is a full, clear, and exact description.
This invention relates particularly to electric lamps for traveling vehicles, such as bicycles, carriages, cars, and the like; and the object is to provide a lamp that will produce a strong and brilliant light and in which the focus may be easily and quickly adjusted.
I will describe a lamp embodying my invention and then point out the novel features in the appended claims.
Reference is to be had to the accompanying drawings, formingapart of this specification, I
in which similar characters of reference indicate corresponding parts in all the figures.
Figure 1 is a side elevation of a lamp embodying my invention. Fig. 2 is a longitudinal section thereof, and Fig. 3 is a transverse section.
The lamp comprises a metal casing 1, having a closure 2 mounted to rotate on its rear end and a lens 3 removably secured in its front end. The lens is here shown as a planoconvex lens; but the form may be changed without departing from the spirit of my invention, although I find the form shown to be one giving good results.
Arranged to slide longitudinally in the casing 1 is a convex reflector 4, having a socket 5 in its front central portion to receive an incandescent lamp 6. The reflector is guided in its movements and prevented from rotating relatively to the casing by means of a rib 7,
secured to the interior of the casing and engaging in a notch 8, formed in the edge of the To provide for a yielding frictional engagement between the reflector and casing, I provide the edge of the reflector with a spring-yielding flange 9, adapted to engage against the inner side of the casing.
Attached to the reflector and extended rearward through a tapped hole in the end closure 2 is a tubular screw-shaft 10, of insulating material, and extended through this tubular shaft is a conductor-rod 11, the front end of which is in electrical engagement with one lead of the lamp 6.
To secure the lamp toa support, such, for instance, as the front bar of a bicycle-frame, I employ a clamp-ring 12, open at its ends and having outwardly-extended perforated lugs 13, through which a clamping-screw 14 passes. Obviously by turning the screw 14 the ring may be securely clamped to a support. Extended radially from the clampingring is a jaw portion 15, and mounted to slide relatively to the jaw portion 15 is a jaw portion 16. This j aw portion 16 is held from rotary motion by means of a pin 17, extended from the ring into an opening in the jaw' portion 16, and upon this pin the said jaw portion is adapted to slide. A set-screw 18 passes transversely through a hole in the fixed jaw portion 15 and engages in a tapped hole in the jaw portion 16, and on this set-screw between tended downward and rearward from the lamp-casing 1. It will be seen that by this construction the lamp may be adjusted and clamped in any desired position, either to throw the light directly forward or at any vertical inclination.
It may be here stated that to reduce the weight of the lamp to a minimum all the metal parts may be made of aluminium.
The conductor-rod 11 is provided with a binding-nut 20 for engaging a wire 21, leadin g from a generator, and the other lead-wire 22 is here shown as connected to a bindingpost 23 on the clamp-ring 12. The current, therefore, will be conveyed to the lamp 6 through the lamp-casing and reflector and through the conductor-rod 11.
By rendering the lamp 6 adjustable with relation to the lens it is evident that the focus, and consequently the intensity of the light thrown out, may be adjusted.
claim as new and desire to secure by Letters Patent 1. An electric lamp comprising a metal casing, a lens in its forward end, a reflector adj ustable longitudinally in the casing, an incandescent-lamp socket carried by the reflector, means for causing the adjustments of the reflector, and means for carrying an electric current to a lamp in the socket, substantially as specified.
2. An electric lamp, comprising a metal casthe jaws is pivotally mounted an arm 19, eX-
Having thus described my invention, I I
closure mounted to rotate on the other end thereof, a reflector mounted to move longitudinally in the casing, a lamp-socket on said reflector, a tubular screw-rod of insulating material, extended from the reflector through a tapped hole in the end closure, and a conductor rod passing through said tubular screw-rod, substantially as specified.
FRANCIS E. MAGEE.
NVi-tnesses:
J NO. M. BITTER, C. R. FERGUSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US572431A true US572431A (en) | 1896-12-01 |
Family
ID=2641129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US572431D Expired - Lifetime US572431A (en) | Electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US572431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050135111A1 (en) * | 2003-12-17 | 2005-06-23 | Guide Corporation (A Delaware Corporation) | Adjustable rear lamp |
-
0
- US US572431D patent/US572431A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050135111A1 (en) * | 2003-12-17 | 2005-06-23 | Guide Corporation (A Delaware Corporation) | Adjustable rear lamp |
| US6948835B2 (en) | 2003-12-17 | 2005-09-27 | Guide Corporation | Adjustable rear lamp |
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