US189065A - Improvement in center-lamps - Google Patents
Improvement in center-lamps Download PDFInfo
- Publication number
- US189065A US189065A US189065DA US189065A US 189065 A US189065 A US 189065A US 189065D A US189065D A US 189065DA US 189065 A US189065 A US 189065A
- Authority
- US
- United States
- Prior art keywords
- globe
- guideways
- lamps
- improvement
- center
- 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
- 239000000463 material Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 230000037250 Clearance Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000414 obstructive Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
-
- 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
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/14—Covers for frames; Frameless shades
Definitions
- the object of our invention is to construct a lamp globe with projections thereon, on which sliding bearings are formed, said bearings being between two suspended guideways, which admit of the globe being raised and lowered.
- A is the globe, which is made oi' glass or other suitable material.
- projections are formed, which can be made ofthe same material that the globe is composed of. These projections can be formed while in the process of molding and casting, or while being blown from the glass-blowers pipe.
- This globe is made large enough to fill the space between the guideways B B.
- the guideways being of smooth and even surface, admit the polished concave sliding bearings a a to .slide up and down freely.
- the guideways B B are suspended from a support, F, while, at their lower ends, the oilfount and 'holder C is attached. Upon the fount-holder C the globe-holder lits and rests.
- the arms .extending from the globe-holder embrace the guideways and form a sliding bearing, which admits of an upward and downward movement with the globe A.
- These guideways B B can be made square, triangular, round, Snc., with a corresponding bearings in the projecting lugs a a.
- the guideways B B can be made of glass, so as to transmit light, or any other suitable material can be used. Two or more guideways may be used for the same purpose.
- a recess, e e, is formed in one of the guideways for the purpose of allowing the globe to be taken out and replaced when desired.
- the upper shoulder of the recess is above the lug ou bearing a. on the globe, and the lower one below it.
- This arrangement allows the globe to be raised from its seat on the globe-holder until the bearing and recess connects, after which it may be taken from the remaining portion of the lamp and its fixtures.
- the screw c is for the purpose ot' closing the passage across the recess e, and to form a bearing for the globe while passing the recess.
- the suspension-bars are square, with round rods or tubes b b b secured to their inner sides. Between these rods b b b the globe A slides up and down, being kept to its place by means of the concave slidebearings, which are formed in the globe, as indicated by the dotted lines shown in Fig. 2; also in cross-section, Fig. 3, A being the globe, and K K the concave slide-bearings, which partially inclose the rods b b. Sufficient clearance should be allowed between the rod and glass bearing for expansion.
- Figs. 4 and 5 are detached views of one of the suspension-bars B, showing a device for removing the globe as follows:
- the tube b b is shown in section. This tube is in two parts. The lower part b is secured tirmly to the bar B, while the upper portion is pivoted at i, on which it swings out at one side,
- the g'lobe can be moved up and down without falling out.
- the rod lL is raised, the tube b swung to one4 side, and the globe raised until the concave bearing K is freed from the tube b', thus allowing it to be swung to one side and removed.
Description
UNrrEn STA'rEs L, lk'rEErr @EEIOEF GEORGE sHERwIN ANDEDMOND EOOPLE, OF BROOKLYN, NEw YORK.
IMPROVEMENT IN CENTER-LAMPS.
Specification forming part of Letters Patent No. 189,065, datedi April 3, 1877; application led September 5, 1876.
' 10 all whom it may concern The object of our invention is to construct a lamp globe with projections thereon, on which sliding bearings are formed, said bearings being between two suspended guideways, which admit of the globe being raised and lowered.
The accompanying drawing represents a suspended front elevation of ourimprovement. A is the globe, which is made oi' glass or other suitable material. On this globe projections are formed, which can be made ofthe same material that the globe is composed of. These projections can be formed while in the process of molding and casting, or while being blown from the glass-blowers pipe.
This globe is made large enough to fill the space between the guideways B B. The guideways, being of smooth and even surface, admit the polished concave sliding bearings a a to .slide up and down freely.
The guideways B B are suspended from a support, F, while, at their lower ends, the oilfount and 'holder C is attached. Upon the fount-holder C the globe-holder lits and rests. The arms .extending from the globe-holder embrace the guideways and form a sliding bearing, which admits of an upward and downward movement with the globe A. y
These guideways B B can be made square, triangular, round, Snc., with a corresponding bearings in the projecting lugs a a.
The guideways B B can be made of glass, so as to transmit light, or any other suitable material can be used. Two or more guideways may be used for the same purpose. A recess, e e, is formed in one of the guideways for the purpose of allowing the globe to be taken out and replaced when desired.
The upper shoulder of the recess is above the lug ou bearing a. on the globe, and the lower one below it. This arrangement allows the globe to be raised from its seat on the globe-holder until the bearing and recess connects, after which it may be taken from the remaining portion of the lamp and its fixtures. The screw c is for the purpose ot' closing the passage across the recess e, and to form a bearing for the globe while passing the recess.
Whenever it becomes necessary to remove the,
globe the screw c must be turned back, so as to offer no obstruction to the lug a.
We are aware that other devices can be ernployed to obtain the same result, as will be seen by referring to Figures 2 and`3.
In Fig. 2 the suspension-bars are square, with round rods or tubes b b b secured to their inner sides. Between these rods b b b the globe A slides up and down, being kept to its place by means of the concave slidebearings, which are formed in the globe, as indicated by the dotted lines shown in Fig. 2; also in cross-section, Fig. 3, A being the globe, and K K the concave slide-bearings, which partially inclose the rods b b. Sufficient clearance should be allowed between the rod and glass bearing for expansion.
Figs. 4 and 5 are detached views of one of the suspension-bars B, showing a device for removing the globe as follows: In Fig. 4 the tube b b is shown in section. This tube is in two parts. The lower part b is secured tirmly to the bar B, while the upper portion is pivoted at i, on which it swings out at one side,
as shown in Fig. 5. When this tube is in the above position the globe can be placed between the guide-bearings b b b, and lowered to its seat on the globe-holder, after which the swinging tube b is swung to its place, and secured by pressing the rod l1. down, so that its lower end will project into the stationary tube b',
whereby the g'lobe can be moved up and down without falling out. Whenever it becomes necessary to remove the globe the rod lL is raised, the tube b swung to one4 side, and the globe raised until the concave bearing K is freed from the tube b', thus allowing it to be swung to one side and removed.
What we claim, and desire to secure by Letters Patent, is-
l. A lamp-globe with bearings formed in the material of which the globe is composed,
readily removed and replaced, for the purpose specified.
. GEORGE SHERWIN. p M p EDMOND HOOPLE.
Witnesses:
E. D. PRITGHARD, H. J. DAVIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US189065A true US189065A (en) | 1877-04-03 |
Family
ID=2258472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US189065D Expired - Lifetime US189065A (en) | Improvement in center-lamps |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US189065A (en) |
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0
- US US189065D patent/US189065A/en not_active Expired - Lifetime
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