US352007A - Incandescent electric lamp - Google Patents
Incandescent electric lamp Download PDFInfo
- Publication number
- US352007A US352007A US352007DA US352007A US 352007 A US352007 A US 352007A US 352007D A US352007D A US 352007DA US 352007 A US352007 A US 352007A
- Authority
- US
- United States
- Prior art keywords
- lamp
- shade
- pins
- holder
- incandescent electric
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 4
- 239000011507 gypsum plaster Substances 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 241000976924 Inca Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass 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
- F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
Definitions
- This invention relates to incandescent electric lamps, and has for its object to provide the same with ashade which shall be supported upon the lamp without necessitating the employment of additional attachments to keep it in place upon said lamp.
- Incandescent electric lamps have heretofore been provided with a shade secured by screws or other suitable means to arms attached to the holder of the lamp.
- My invention in incandescent lamps consists in a bulb, a mold to hold said bulb, a band surrounding said mold and provided at one end with a flange to form a seat for a shade, and having pins or projections at or near its other end, combined with a shade having a collar provided with grooves, whereby said shade may be fitted to its seat on said flange, and with a holder having a groove in which said pins are rotated to fasten the lamp to said holder, and to secure the shade firmly upon the lamp.
- Figure 1 is a partial section and elevation of an incandescent electric lamp embodying my invention, the holder being in elevation;
- Fig. 2 a top view of the shade detached from the lamp and broken off to save space in the drawings;
- Fig. 3 a sectional view of Fig. 1 on line mm, with the shade removed.
- the glass bulb a containing the usual carbon filament, a, and platinum electrodes a a is embedded in a plaster-of-paris mold, a, which is surrounded by a preferably metallic band, b, said plaster-of-paris mold having also embedded in it terminal electrodes 12 b*, to which the platinum electrodes 0. a are connected.
- the band 1) near its upper end, is provided with pins or projections b If, adapted to enter slots b b, and be rotated in a groove, f, in the shell or casing c of the holder, substantially as described in United States application No. 166,382, dated May 22, 1885. (Patented April 6, 1886, No. 339,217.)
- the band I) is flanged at its lower end, as at c, said flange forming a seat for the collar e of a shade, c, said collar being struck up and provided with grooves e 6, (see Fig. 2,) which permit the shade to be slipped over and past the pins or projections b b to its seat on the flange c, said pins traveling in said grooves when the shade is placed upon the lamp.
- Theshade is maintained in position upon the lamp by means of the shell or casing c of the holder, the lamp being secured to its holder by inserting the pins 1) b in the slots 1) b and turning the lamp to rotate said pins in the groove f in the shell or casing 0, thus placing said pins out of line with the grooves e e in the collar of the shade.
- the lamp is first removed from its holder, and the pins or projections b b on the band b are slipped through the grooves e e in the collar of the shade.
- I claim- 1 In an incandescent electric lamp, the bulb, the mold to hold said bulb, the band surrounding said mold and provided at one end with a flange, and having a pin or pins at or near its other end, combined with the shade e having the collar e, provided with a groove or grooves, whereby said shade may be fitted to its seat on said flange, and with a holder having a groove in which said pin or pins are rotated to fasten said lamp to said holder, said holder securing said shade firmly upon said lamp, substantially as set forth.
Description
(N5 Model.) I I F. SGHAEPER.
INGANDBSOENT ELECTRIC LAMP. No. 352,007. Patented-Now. 2, 1886.
N. PETERS PholmLilho nphur. Wilhingwfl. ILC.
UNITED STATES PATENT OFFICE.
FREDERICK SOHAEFER, OF BOSTON, MASSACHUSETTS.
INCA NDESCENT ELECTRlC LAMP.
SPECIFICATION forming part of Letters Patent No. 352,007, dated November 2, 1886.
Application filed March 11,1886. Serial No. 194,833. (No model.)
To all whom it may concern:
Be it known that I, FREDERICK SOHAEFER,
letters on the drawings representing like parts.
This invention relates to incandescent electric lamps, and has for its object to provide the same with ashade which shall be supported upon the lamp without necessitating the employment of additional attachments to keep it in place upon said lamp.
Incandescent electric lamps have heretofore been provided with a shade secured by screws or other suitable means to arms attached to the holder of the lamp. My invention in incandescent lamps consists in a bulb, a mold to hold said bulb, a band surrounding said mold and provided at one end with a flange to form a seat for a shade, and having pins or projections at or near its other end, combined with a shade having a collar provided with grooves, whereby said shade may be fitted to its seat on said flange, and with a holder having a groove in which said pins are rotated to fasten the lamp to said holder, and to secure the shade firmly upon the lamp.
Figure 1 is a partial section and elevation of an incandescent electric lamp embodying my invention, the holder being in elevation; Fig. 2, a top view of the shade detached from the lamp and broken off to save space in the drawings; and Fig. 3, a sectional view of Fig. 1 on line mm, with the shade removed.
The glass bulb a, containing the usual carbon filament, a, and platinum electrodes a a is embedded in a plaster-of-paris mold, a, which is surrounded by a preferably metallic band, b, said plaster-of-paris mold having also embedded in it terminal electrodes 12 b*, to which the platinum electrodes 0. a are connected.
The band 1), near its upper end, is provided with pins or projections b If, adapted to enter slots b b, and be rotated in a groove, f, in the shell or casing c of the holder, substantially as described in United States application No. 166,382, dated May 22, 1885. (Patented April 6, 1886, No. 339,217.) The band I) is flanged at its lower end, as at c, said flange forming a seat for the collar e of a shade, c, said collar being struck up and provided with grooves e 6, (see Fig. 2,) which permit the shade to be slipped over and past the pins or projections b b to its seat on the flange c, said pins traveling in said grooves when the shade is placed upon the lamp.
Theshade is maintained in position upon the lamp by means of the shell or casing c of the holder, the lamp being secured to its holder by inserting the pins 1) b in the slots 1) b and turning the lamp to rotate said pins in the groove f in the shell or casing 0, thus placing said pins out of line with the grooves e e in the collar of the shade.
To remove the shade from the lamp,"the lamp is first removed from its holder, and the pins or projections b b on the band b are slipped through the grooves e e in the collar of the shade.
I have herein shown the band b provided with two pins, but it is obvious that one pin' might be used; but I prefer the construction shown.
I claim- 1. In an incandescent electric lamp, the bulb, the mold to hold said bulb, the band surrounding said mold and provided at one end with a flange, and having a pin or pins at or near its other end, combined with the shade e having the collar e, provided with a groove or grooves, whereby said shade may be fitted to its seat on said flange, and with a holder having a groove in which said pin or pins are rotated to fasten said lamp to said holder, said holder securing said shade firmly upon said lamp, substantially as set forth.
2. In an incandescent lamp, the bulb, the mold to hold said bulb, the band surrounding said mold and provided at one end with a flange, e, and having pins 1) b at or near its other end, combined with the shade e, I
having the collar e, provi'dedwith grooves e 6", whereby said shade may be fitted to its seat on the flange e, and with a holder having a groove in which said pins are rotated to fasten said lamp to said holder, said holder securing said shade firmly upon said lamp,
substantially as described.
In testimony whereof I have slgned my name IOC to this specification in the presence of two subscribing witnesses.
" FREDERICK SOHAEFER.
Witnesses:
J. H. CHURCHILL, BE NIQE J. NoYEs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US352007A true US352007A (en) | 1886-11-02 |
Family
ID=2421066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US352007D Expired - Lifetime US352007A (en) | Incandescent electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US352007A (en) |
-
0
- US US352007D patent/US352007A/en not_active Expired - Lifetime
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