US157538A - Improvement in lamp-chimneys - Google Patents
Improvement in lamp-chimneys Download PDFInfo
- Publication number
- US157538A US157538A US157538DA US157538A US 157538 A US157538 A US 157538A US 157538D A US157538D A US 157538DA US 157538 A US157538 A US 157538A
- Authority
- US
- United States
- Prior art keywords
- chimney
- lamp
- improvement
- chimneys
- parker
- 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
- 230000000875 corresponding effect Effects 0.000 description 2
- 241000656145 Thyrsites atun Species 0.000 description 1
- 239000011521 glass 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
- F21V3/00—Globes; Bowls; Cover glasses
Definitions
- My invention relates to providing each of the longitudinal halves of a glass lamp-chimney with corresponding notches or open slots in one of the adjacent or meeting edges, and in a spring-clam p having a lug or nib adapted to fit into said slots. Expansion of the chimney from heat is thus permitted, and yet its parts or halves are held firmly together, and lengthwise movement of one on the other prevented, as hereinafter described.
- Figure 1 is a vertical section of the chimney.
- Fig. 2 is a cross-section of the top, taken on the line a; m.
- Fig. 3 is a cross-section of the bottom on the line y y.
- a and B represent the two parts of the chimney. O is the joint between them. When put together, as seen in the drawing, the two parts form a tube of the size and shape of the ordinary lamp-chimney.
- D is aspring-band around the bottom ofthe chimney. This band is coiled position around the chimney. Instead of the nicks and nib there may be a head at the upper end of the chimney to hold the spring, if desired.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Bathtub Accessories (AREA)
- Adornments (AREA)
- Toys (AREA)
Description
T. w. PARKER. L-amp-Ghimn'ysy I r No 157 538 Patented Dec.8,1874
mums.
THE G RAPQ IC CO- FHDTO UTHBS 8. 4-! PARK PLACEPNX.
UNITED STATES PA ENT OEEIoE.
THOMAS W. PARKER, OF GRIGGSVILLE, ILLINOIS.
IMPROVEMENT IN LAMP-C HIMNEYS.
Specification forming part of Letters Patent No. 157,538, dated December 8, 1874; application filed November 14, 1874.
To all whom "it may concern:
Be it known that I, THOMAS W. PARKER, of Griggsville, in the county of Pike and State of Illinois, have invented a new and useful Improvement in Lamp-Chimney, of which the following is a specification:
My invention relates to providing each of the longitudinal halves of a glass lamp-chimney with corresponding notches or open slots in one of the adjacent or meeting edges, and in a spring-clam p having a lug or nib adapted to fit into said slots. Expansion of the chimney from heat is thus permitted, and yet its parts or halves are held firmly together, and lengthwise movement of one on the other prevented, as hereinafter described.
In the accompanying drawing, Figure 1 is a vertical section of the chimney. Fig. 2 is a cross-section of the top, taken on the line a; m. Fig. 3 is a cross-section of the bottom on the line y y.
Similar letters of reference indicate corre sponding parts.
A and B represent the two parts of the chimney. O is the joint between them. When put together, as seen in the drawing, the two parts form a tube of the size and shape of the ordinary lamp-chimney. D is aspring-band around the bottom ofthe chimney. This band is coiled position around the chimney. Instead of the nicks and nib there may be a head at the upper end of the chimney to hold the spring, if desired.
By this arrangement the parts of the chimney are allowed freedom of expansion, and yet held firmly together and prevented from moving lengthwise on each other.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination of the spring-band F, having lug G, with the halves A B of the chimney having nicks or slots H, as shown and described, for the purpose specified.
THOMAS W. PARKER.
Witnesses:
vLEVI J. BARTLETT,
L. J. PARKER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US157538A true US157538A (en) | 1874-12-08 |
Family
ID=2226948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US157538D Expired - Lifetime US157538A (en) | Improvement in lamp-chimneys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US157538A (en) |
-
0
- US US157538D patent/US157538A/en not_active Expired - Lifetime
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