US191888A - Improvement in lamp-refractors - Google Patents
Improvement in lamp-refractors Download PDFInfo
- Publication number
- US191888A US191888A US191888DA US191888A US 191888 A US191888 A US 191888A US 191888D A US191888D A US 191888DA US 191888 A US191888 A US 191888A
- Authority
- US
- United States
- Prior art keywords
- lamp
- refractors
- improvement
- shades
- collar
- 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
- 239000000203 mixture Substances 0.000 description 6
- 239000005308 flint glass Substances 0.000 description 4
- 210000000088 Lip Anatomy 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010742 number 1 fuel oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
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
- 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
Definitions
- Figure 1 rep resents a side elevation of a lamp with our improved refractors or magnifiers.
- Fig. 2 is a top view of the collar attachment of the rei'ractors, and
- Fig. 3 an inside view of one of the refractors.
- Our invention is intended to provide for coal'oil or gas lamps an improved attachment by which the light fornight work is magnified and thrown with suitable power to a certain point.
- the invention consists of the combination,
- the ref'ractors are hinged and clamped to a detachable collar, attached to the neck of the lamp or base of the burner.
- A represents a coal-oil, gas, or other lamp, of any suitable style and tinish
- B a metallic collar that is attached by a suitable clamp-screw to the neck of the lamp or base of the burner of the same.
- collar B is provided with lugs or cars a, to
- One or more refractors may be, pivoted to the same collar, the required number of lugs being provided thereon.
- the rel'ractors are. preferably made of pure flint glass, as this is best adapted to throw the light in bright manner.
- the refractors are of convex shape, and attached to a circumferential metallic frame, 0, which frame is hinged by an ear, a, to the lugs of the'collar, and clamped thereto into any suitable position by thumb-screws b. The refractors may thereby must be the work-stand to the light.
- the ret'ractor framcs C are provided with side projecting pivot-pins d, to which are sprung shades D, having small holes for the pivot-pins d.
- the upper ends of the shades D rest against the lamp-chimney, and the shades assume a position of difl'erent inclination actording to the position of the refractors, as shown in Fig. l of the drawing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
A. SCHAEFFER & A. PFRUNDER.
LAMP-REFRACTOR.
N0; 191,888, Patented June 12,1877.
Wnuassts:
A 8 my NTOB 6' N-PETERS. FROTD'LITHOGRAPM ER. WASHXNGTON. D, C
TENT
Free
AUGUST SOHAEFFER AND'ANTON PFRUNDER, OF LOUISVILLE, KENTUCKY.
' IMPROVEMENT IN LAMP-REFRACTORS.
Specification forming part of Letters Patent No. 191,888, dated June 12, 1877; application filed April 30, 1877.
To all whom it may concern Be it known that we, AUGUST YSCHAEFFER and ANTON PFRUNDER, of Louisville, in the county of Jefferson and State of Kentucky, have invented a new and Improved Lamp-Be tractor, of which the following is a specification:
In the accompanying drawing, Figure 1 rep resents a side elevation of a lamp with our improved refractors or magnifiers. Fig. 2 is a top view of the collar attachment of the rei'ractors, and Fig. 3 an inside view of one of the refractors.
Similar letters of reference indicate corresponding parts.
Our invention is intended to provide for coal'oil or gas lamps an improved attachment by which the light fornight work is magnified and thrown with suitable power to a certain point.
The invention consists of the combination,
. with a gas or other lamp, of one or more hinged and adjustable refractors, having pivoted and self-adjusting shades.
The ref'ractors are hinged and clamped to a detachable collar, attached to the neck of the lamp or base of the burner.
In the drawing, A represents a coal-oil, gas, or other lamp, of any suitable style and tinish, and B a metallic collar that is attached by a suitable clamp-screw to the neck of the lamp or base of the burner of the same. The
collar B is provided with lugs or cars a, to
which the ret'ractor (J is pivoted. One or more refractors may be, pivoted to the same collar, the required number of lugs being provided thereon.
The rel'ractors are. preferably made of pure flint glass, as this is best adapted to throw the light in bright manner. The refractors are of convex shape, and attached to a circumferential metallic frame, 0, which frame is hinged by an ear, a, to the lugs of the'collar, and clamped thereto into any suitable position by thumb-screws b. The refractors may thereby must be the work-stand to the light.
be adjusted, at any inclination, on a lamp, so as to throw the light to the work at greater or less distance from the lamp. The refractors are made of any size, and may also be made of other material and construction, as we do not confine ourselves to the use of flint glass.
The ret'ractor framcs C are provided with side projecting pivot-pins d, to which are sprung shades D, having small holes for the pivot-pins d. The upper ends of the shades D rest against the lamp-chimney, and the shades assume a position of difl'erent inclination actording to the position of the refractors, as shown in Fig. l of the drawing.
The shades follow the motion of the refractors, so as to be self-adjusting in connection with the same. The more the position of the refractors approaches a vertical position the greater will be the distance to which the light is thrown by the same, while the closer they are set to a horizontal position the nearer Thus a convenient and readily-attached device to lamps of all kinds is furnished for use in the trades, and for all cases in which a cheap yet economical powerful and brilliant light is de-' sired.
Having thus described our invention, we claim as new and desire to secure by Letters Patent .1. The combination, with a lamp, of one or more adjustable retractors, having pivoted and self-adjusting shades, substantially as shown and described.
2. The combination, with a detachable collar fitted to the neck of a lamp, of hinged and adjustable refractors and shades. pivoted to the latter, substantially as described.
AUGUST SOHAEFFE It. ANTON PFBUNDER.
Witnesses J AGOB LIPS, J 01m G. How.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US191888A true US191888A (en) | 1877-06-12 |
Family
ID=2261295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US191888D Expired - Lifetime US191888A (en) | Improvement in lamp-refractors |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US191888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788628A (en) * | 1987-10-28 | 1988-11-29 | Farrall Instruments, Inc. | Banklight system for producing variable gradation lighting effects |
| US10989393B2 (en) * | 2018-06-25 | 2021-04-27 | Connie Lea Cox | Universal shade system for jar-style lighting fixture |
-
0
- US US191888D patent/US191888A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788628A (en) * | 1987-10-28 | 1988-11-29 | Farrall Instruments, Inc. | Banklight system for producing variable gradation lighting effects |
| US10989393B2 (en) * | 2018-06-25 | 2021-04-27 | Connie Lea Cox | Universal shade system for jar-style lighting fixture |
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