US487020A - Lamp-burner - Google Patents
Lamp-burner Download PDFInfo
- Publication number
- US487020A US487020A US487020DA US487020A US 487020 A US487020 A US 487020A US 487020D A US487020D A US 487020DA US 487020 A US487020 A US 487020A
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- US
- United States
- Prior art keywords
- chimney
- arms
- burner
- lamp
- clamp
- 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
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- 210000001847 Jaw Anatomy 0.000 description 12
- 102100002652 NEGR1 Human genes 0.000 description 2
- 101700038032 NEGR1 Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000630 rising Effects 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
Definitions
- This invention relates to that class of lampburners organized to hold a chimney having a cylindrical base.
- burners organized to hold chimneys of this form have been provided with spring-arms adapted to bear with a yielding pressure on the surface of the chimney, in some cases the internal surface, but more generally the external surface, each arm being independent of the others and exerting a pressure on the chimney due only to its own resilience. In the course of time these independent arms lose their elasticity, and consequently do not grasp the chimney with sufficient firmness. Hence it often happens that the chimney is loosely held and falls accidentally from the burner.
- My invention has for its object to enable a chimney having a cylindrical base to be clamped or grasped so that there will be no liability of its being so loosely held as to fall accidentally from the burner'.
- my invention consists in a lampburner having a chimney seat or support, diverging elastic arms projecting upwardly from said seat, a flexible or yielding chimneyclamp connected with said arms and consisting of a band having downturned arms connected with said seat, and means for compressing the clamp upon the said elastic arms, the clamp being adapted to hold the chimney above said seat and with a yielding pressure by its own elasticity and by the elasticity of those portions of the arms that project above the clamp, whereby expansion of the chimney by heat is permitted and the clamp is adapted to conform to variations in the size of chimneys, all of which I will now proceed to describe and claim.
- Figure l ⁇ represents a side view of a burner provided with my improvement and showing a lamp-chimney in place.
- Fig. 2 is a perspective view of the burner.
- a represents the base or iiange of a lamp-burner, on which the lower end of the cylindrical lower portion or base of the chimney b rests.
- a clamp formed to embrace the cylindrical base b at a point above the lower end thereof and provided with means whereby it may be positively compressed or tightened upon said chimney-base, so as to firmly hold the same, as shown in the drawings.
- I employ a single jaw composed of a curved wire c,having its ends bent downwardly and constituting inclined arms c c', connected with the base or ange a.
- the jaw c bears on the outer side of the elastic arms f f, attached to and projecting upwardly from the base a, said arms being formed to bear upon the exterior of the chimney-base after the manner of the arms usually em ployed as the sole means of holding the chimney.
- the jaw c will be compressed and caused to force the arms f inwardly against the surface of the chimney.
- the jaw c in this case is supported at a point opposite the arms c c by means of a wire standard c2 rising from the base or flange a and attached at its upper end to the jaw c; or the jaw c maybe secured directly to the arms f.
- a lamp-burner having a chimney seat or support a, diverging elastic arms projecting upwardly from said seat, a iexible or yielding chimney-clamp connected with said arms and consisting of aband having downturned arms connected with said seat, and means for compressing the clamp upon the said elastic arms, the clamp being adapted to hold the chimney above saidseat and with a yielding pressure .by itssown elasticity andfbythe elasticity ot'v those portions of the arms that project above the clamp, whereby expansion of the chimney by heat is permitted and the clamp is adapted to conform to variations in the size of chimneys, as set forth,
Description
(NoModel.) v y 13.2.1503.
LAM;3 BURNER.
No. 487,020. Patented Nov. 29, 1892'.
77.Y i-messes: A Z1-'awe n or':
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Y Ntra 'rA'rns Fries.
ATENT LAMP-BURN ER.
SPECIFICATION forming part of Letters Patent No. 487,020, dated November 29, 1892. Applicationiiled February l, 1892. Seria-l No. 419,906. (No model.)
To all whom it may concern.-
Be it known that I, BARTLETT P. LUCE, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Lamp-Burners, of which the following is a specification.
This invention relates to that class of lampburners organized to hold a chimney having a cylindrical base. Heretofore burners organized to hold chimneys of this form have been provided with spring-arms adapted to bear with a yielding pressure on the surface of the chimney, in some cases the internal surface, but more generally the external surface, each arm being independent of the others and exerting a pressure on the chimney due only to its own resilience. In the course of time these independent arms lose their elasticity, and consequently do not grasp the chimney with sufficient firmness. Hence it often happens that the chimney is loosely held and falls accidentally from the burner.
My invention has for its object to enable a chimney having a cylindrical base to be clamped or grasped so that there will be no liability of its being so loosely held as to fall accidentally from the burner'.
To this end my invention consists in a lampburner having a chimney seat or support, diverging elastic arms projecting upwardly from said seat, a flexible or yielding chimneyclamp connected with said arms and consisting of a band having downturned arms connected with said seat, and means for compressing the clamp upon the said elastic arms, the clamp being adapted to hold the chimney above said seat and with a yielding pressure by its own elasticity and by the elasticity of those portions of the arms that project above the clamp, whereby expansion of the chimney by heat is permitted and the clamp is adapted to conform to variations in the size of chimneys, all of which I will now proceed to describe and claim.
In the accompanying drawings, forming a part of this specification, Figure l` represents a side view of a burner provided with my improvement and showing a lamp-chimney in place. Fig. 2 is a perspective view of the burner.
The same letters of reference indicate the same parts in all the figures.
In the drawings, a represents the base or iiange of a lamp-burner, on which the lower end of the cylindrical lower portion or base of the chimney b rests.
The general construction of the burner has nothing to do with my invention, the same being confined to the means, presently described, for grasping and holding the chimney.
In carrying out my invention I secure to the base or flange a a clamp formed to embrace the cylindrical base b at a point above the lower end thereof and provided with means whereby it may be positively compressed or tightened upon said chimney-base, so as to firmly hold the same, as shown in the drawings. I employ a single jaw composed of a curved wire c,having its ends bent downwardly and constituting inclined arms c c', connected with the base or ange a. The jaw c bears on the outer side of the elastic arms f f, attached to and projecting upwardly from the base a, said arms being formed to bear upon the exterior of the chimney-base after the manner of the arms usually em ployed as the sole means of holding the chimney. It will be seen that by forcing a sleeve g upwardly upon the arms c c the jaw cwill be compressed and caused to force the arms f inwardly against the surface of the chimney. The jaw c in this case is supported at a point opposite the arms c c by means of a wire standard c2 rising from the base or flange a and attached at its upper end to the jaw c; or the jaw c maybe secured directly to the arms f.
I claim- A lamp-burner having a chimney seat or support a, diverging elastic arms projecting upwardly from said seat, a iexible or yielding chimney-clamp connected with said arms and consisting of aband having downturned arms connected with said seat, and means for compressing the clamp upon the said elastic arms, the clamp being adapted to hold the chimney above saidseat and with a yielding pressure .by itssown elasticity andfbythe elasticity ot'v those portions of the arms that project above the clamp, whereby expansion of the chimney by heat is permitted and the clamp is adapted to conform to variations in the size of chimneys, as set forth,
In testimony whereof I have signed my narne to this specification, in the presence 0E two subscribing Witnesses, this 36th day of ro January, A. D. 1892.
BARTLETT P. LUCE.
Witnesses:
C. F. BROWN, ARTHUR W. CRossLEY.
Publications (1)
Publication Number | Publication Date |
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US487020A true US487020A (en) | 1892-11-29 |
Family
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Family Applications (1)
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US487020D Expired - Lifetime US487020A (en) | Lamp-burner |
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US (1) | US487020A (en) |
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- US US487020D patent/US487020A/en not_active Expired - Lifetime
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