US2081031A - Swivel harp fixture for electric lamps - Google Patents
Swivel harp fixture for electric lamps Download PDFInfo
- Publication number
- US2081031A US2081031A US11583A US1158335A US2081031A US 2081031 A US2081031 A US 2081031A US 11583 A US11583 A US 11583A US 1158335 A US1158335 A US 1158335A US 2081031 A US2081031 A US 2081031A
- Authority
- US
- United States
- Prior art keywords
- frame
- washer
- harp
- fixture
- swivel
- 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
- 238000010276 construction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- 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
-
- 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
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44573—Clasp, clip, support-clamp, or required component thereof including track or way guided and retained gripping member
- Y10T24/4459—Clasp, clip, support-clamp, or required component thereof including track or way guided and retained gripping member with operator for moving guided member
- Y10T24/44598—Threaded cylindrical rod and mating cavity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32861—T-pivot, e.g., wrist pin, etc.
- Y10T403/32877—Pin is integral with or secured to inner member
Definitions
- This invention relates to new and useful improvements in a swivel harp fixture for electric lamps.
- the invention relates particularly to means for fri'ctionally controlling the swivelling of a stud on the frame of an article as mentioned.
- the invention proposes the use of a washer having diametrically opposite areas thereof bent downwards against the frame in such a manner that the edges of the washer engage the frame with resilient effect for providing the frictional means desired.
- a still further object of the invention is the provision of grooves upon the down-turned areas arranged so as to increase the contacting areas of the washer with the frame to increase the frictional resistance between the parts.
- Another object of the invention is the construction of an article as mentioned which is simple and durable and which can be manufactured and sold at a reasonable cost.
- Fig. 1 is a side elevational view of a lamp with a lamp shade frame mounted upon a swivel harp fixture constructed according to this invention.
- Fig. 2 is an enlarged perspective detailed view of the swivel harp fixture illustrated per se.
- Fig. 3 is a side elevational view of the upper portion of Fig. 2 to better illustrate that portion of the device embodying the invention.
- Fig. 4 is a side elevational view of Fig. 3 looking in the direction of the line 4-4 of Fig. 3.
- Fig. 5 is a view similar to Fig. 4, but illustrating another embodiment of the invention.
- Fig. 6 is a side elevational view of Fig. 5 looking in the direction of the arrow 6-6 of Fig. 5.
- a lamp base ll! is illustrated provided with a lamp socket ll supporting a lamp l2.
- a harp fixture I3 is mounted upon the lamp and supports a shade frame M. This shade frame is held in position by a spherical shaped nut l5.
- the invention particularly relates to a friction means associated with a stud mounted upon the top of the frame l3 for coaction with the nut l5 to hold the lamp shade in position so that the shade may be tilted in one direction or the other direction to variousdegrees.
- This frictional means comprises a washer ll mounted upon the stud and engaging against a portion of the frame 14. It is the formation of this washer that forms the basis of this invention.
- the washer H has diametrically opposite areas Il bent downwards to engage against the frame.
- the stud I6 is formed with a flange portion H3 against which the washer ll rests.
- the washer I1 is formed with a central opening through which the lower portion lfi of the stud engages.
- a section of the frame l4 passes through an open- .ing in the lower portion l6 of the stud.
- the bent area ll of the washer resiliently engages against the frame in such a manner that the inherent resilient action of the washer is utilized to produce the frictional resistance for holding the stud in various swivelled positions on the frame.
- the bent areas [1 are formed with grooves l'l adapted to engage against the frame 14 so as to increase the contacting areas between the washer andthe frame.
- These grooves l'l are formed by bending the material of the washer. More particularly, the base walls of the grooves are-pressed against the top of the frame.
- means for detachably securing said shade to said stud means for frictionally controlling the swivelling of said stud, comprising a washer of swivelling of said stud, comprising a washer of resilient 'material rotatably mounted on said frame, said washer being of substantially uniform thickness and having diametrically opposed edge portions bent for frictionally engaging said frame, said edge portions being bent to form grooves in their sides adjacent said frame for increasing the areas of contact between said washer and said frame, whereby said washer resiliently holds said stud relatively rigidwith said frame.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Description
May 18, 1937. K. BERGER 2,081,031
SWIVEL HARP FIXTURE FOR ELECTRIC LAMPS Filed March 18, 1935 INVENTOR KORNEL BERGER i 1 ATTORNEY Patented May 18, 1937 UNITED STATES PATENT OFFICE Kornel Berger, New York, N. Y.
Application Marcli 18, 1935, Serial No. 11,583
2 Claims.
This invention relates to new and useful improvements in a swivel harp fixture for electric lamps.
The invention relates particularly to means for fri'ctionally controlling the swivelling of a stud on the frame of an article as mentioned.
In a prior application and Patent No. 1,974,947, I have disclosed means for frictionally controlling the swivelling of the stud on the frame characterized by the contacting of a washer with the frame. This invention contemplates the formation of the washer in such a manner as to better take advantage of the resiliency of the body of the washer tosupplement the frictional contact between the washer and the frame.
More particularly, the invention proposes the use of a washer having diametrically opposite areas thereof bent downwards against the frame in such a manner that the edges of the washer engage the frame with resilient effect for providing the frictional means desired.
A still further object of the invention is the provision of grooves upon the down-turned areas arranged so as to increase the contacting areas of the washer with the frame to increase the frictional resistance between the parts.
Another object of the invention is the construction of an article as mentioned which is simple and durable and which can be manufactured and sold at a reasonable cost.
For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features are more particularly set forth.
In the accompanying drawing forming a material part of this disclosure:
Fig. 1 is a side elevational view of a lamp with a lamp shade frame mounted upon a swivel harp fixture constructed according to this invention.
Fig. 2 is an enlarged perspective detailed view of the swivel harp fixture illustrated per se.
Fig. 3 is a side elevational view of the upper portion of Fig. 2 to better illustrate that portion of the device embodying the invention.
Fig. 4 is a side elevational view of Fig. 3 looking in the direction of the line 4-4 of Fig. 3.
Fig. 5 is a view similar to Fig. 4, but illustrating another embodiment of the invention.
Fig. 6 is a side elevational view of Fig. 5 looking in the direction of the arrow 6-6 of Fig. 5.
In Fig. 1 a lamp base ll! is illustrated provided with a lamp socket ll supporting a lamp l2. A harp fixture I3 is mounted upon the lamp and supports a shade frame M. This shade frame is held in position by a spherical shaped nut l5.
The invention particularly relates to a friction means associated with a stud mounted upon the top of the frame l3 for coaction with the nut l5 to hold the lamp shade in position so that the shade may be tilted in one direction or the other direction to variousdegrees. This frictional means comprises a washer ll mounted upon the stud and engaging against a portion of the frame 14. It is the formation of this washer that forms the basis of this invention.
The washer H has diametrically opposite areas Il bent downwards to engage against the frame. The stud I6 is formed with a flange portion H3 against which the washer ll rests. The washer I1 is formed with a central opening through which the lower portion lfi of the stud engages. A section of the frame l4 passes through an open- .ing in the lower portion l6 of the stud. The bent area ll of the washer resiliently engages against the frame in such a manner that the inherent resilient action of the washer is utilized to produce the frictional resistance for holding the stud in various swivelled positions on the frame.
In the form of the invention illustrated in Figs. 5 and 6 the bent areas [1 are formed with grooves l'l adapted to engage against the frame 14 so as to increase the contacting areas between the washer andthe frame. These grooves l'l are formed by bending the material of the washer. More particularly, the base walls of the grooves are-pressed against the top of the frame. With this construction there will be a pressure between the washer and the frame due to the resiliency of the washer in its bent form, and this pressure will be distributed throughout the" contacting areas of the washer and the frame.
While I have illustrated and described the preferred embodiment of my invention it is'to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.
Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:
frame, and a stud swivelly mounted on a portion of said'frame for supporting said shade, and
means for detachably securing said shade to said stud, means for frictionally controlling the swivelling of said stud, comprising a washer of swivelling of said stud, comprising a washer of resilient 'material rotatably mounted on said frame, said washer being of substantially uniform thickness and having diametrically opposed edge portions bent for frictionally engaging said frame, said edge portions being bent to form grooves in their sides adjacent said frame for increasing the areas of contact between said washer and said frame, whereby said washer resiliently holds said stud relatively rigidwith said frame. 10
KORNEL BERGER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11583A US2081031A (en) | 1935-03-18 | 1935-03-18 | Swivel harp fixture for electric lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11583A US2081031A (en) | 1935-03-18 | 1935-03-18 | Swivel harp fixture for electric lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
US2081031A true US2081031A (en) | 1937-05-18 |
Family
ID=21751051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11583A Expired - Lifetime US2081031A (en) | 1935-03-18 | 1935-03-18 | Swivel harp fixture for electric lamps |
Country Status (1)
Country | Link |
---|---|
US (1) | US2081031A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2658990A (en) * | 1950-07-20 | 1953-11-10 | Lagin Herbert | Means for mounting lamp shades on lamp harps |
US2730419A (en) * | 1951-09-18 | 1956-01-10 | Gilbert A Watrous | Furniture support |
-
1935
- 1935-03-18 US US11583A patent/US2081031A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2658990A (en) * | 1950-07-20 | 1953-11-10 | Lagin Herbert | Means for mounting lamp shades on lamp harps |
US2730419A (en) * | 1951-09-18 | 1956-01-10 | Gilbert A Watrous | Furniture support |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2081031A (en) | Swivel harp fixture for electric lamps | |
US2183377A (en) | Electric light socket | |
US1540959A (en) | Curling-iron holder | |
US2632606A (en) | Toilet paper roll holder | |
US2164901A (en) | Lamp shade mounting means | |
US1616227A (en) | Electric-light shade | |
US2295449A (en) | Fastener member and fastener installation | |
US1249364A (en) | Inverted-lamp shade-holder. | |
US2264145A (en) | Lamp | |
US1984401A (en) | Suspension loop for flash lights | |
US2345755A (en) | Fumigant support and fumigant | |
US2257778A (en) | Lamp harp | |
US1598239A (en) | Adjustable bracket | |
US1917544A (en) | Lamp shade and means for supporting the same | |
USRE20170E (en) | K berger | |
US2032536A (en) | Cigarette rest | |
US2051889A (en) | Hand lamp | |
US1537504A (en) | Electric lamp | |
US1886090A (en) | Supporting device | |
US1429037A (en) | Clip | |
US1357186A (en) | Curtain-fastener | |
US1974947A (en) | Swivel harp fixture for electric lamps | |
US2727985A (en) | Lamp shade holders | |
USRE16722E (en) | Lamp device | |
US1922754A (en) | Lamp shade bracket |