GB619370A - Improved equipoising mechanism - Google Patents
Improved equipoising mechanismInfo
- Publication number
- GB619370A GB619370A GB3598946A GB3598946A GB619370A GB 619370 A GB619370 A GB 619370A GB 3598946 A GB3598946 A GB 3598946A GB 3598946 A GB3598946 A GB 3598946A GB 619370 A GB619370 A GB 619370A
- Authority
- GB
- United Kingdom
- Prior art keywords
- link
- stem
- lawes
- prolongation
- links
- 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
Links
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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Jib Cranes (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
619,370. Stands and brackets for lamps. LAWES BROS., Ltd., and LAWES, F. G. R. Dec. 5, 1946, No. 35989. [Classes 52 (iii) and 52 (v)] An equipose stand for a lamp comprises a parallel linkage provided with a counterweight, the linkage being rotatable about an axis provided on one of the links. The pedestal 1 has mounted thereon a stem 2 provided with a pivot 3 for a parallel linkage 4, 5, 9, 10, pivoted together at 3, 7, 8, 11 a prolongation of the link 9 carrying the device, such as a lamp 12, to be equipoised and a prolongation of the link 10 carrying a counterbalance weight 14. The links 4, 9 10 may be of channel form while the link 5 may comprise plates connected rigidly together by a pin 6. Friction means may be introduced at the pivot spindle 3 by mounting thereon a spring bearing against the link 5 and adjusted by a screwed knob. The device may be in the form of a bracket and the stem 2 may be mounted at any angle, friction retaining means being introduced if the stem is other than upright. Specification 465,576 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3598946A GB619370A (en) | 1946-12-05 | 1946-12-05 | Improved equipoising mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3598946A GB619370A (en) | 1946-12-05 | 1946-12-05 | Improved equipoising mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB619370A true GB619370A (en) | 1949-03-08 |
Family
ID=10383744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3598946A Expired GB619370A (en) | 1946-12-05 | 1946-12-05 | Improved equipoising mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB619370A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4165530A (en) * | 1977-07-28 | 1979-08-21 | I Guzzini S.P.A. | Articulated-arm supporting member, especially for lamps |
NL1029913C2 (en) * | 2005-09-09 | 2007-03-12 | Stefanus Josephus Henr Breukel | Lamp with a folding arm. |
CN102401267A (en) * | 2011-04-20 | 2012-04-04 | 张伟 | Height-adjustable desk lamp |
-
1946
- 1946-12-05 GB GB3598946A patent/GB619370A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4165530A (en) * | 1977-07-28 | 1979-08-21 | I Guzzini S.P.A. | Articulated-arm supporting member, especially for lamps |
NL1029913C2 (en) * | 2005-09-09 | 2007-03-12 | Stefanus Josephus Henr Breukel | Lamp with a folding arm. |
EP1762784A1 (en) * | 2005-09-09 | 2007-03-14 | Stefanus Josefus Henricus Breukel | Lamp having a pivotable arm |
CN102401267A (en) * | 2011-04-20 | 2012-04-04 | 张伟 | Height-adjustable desk lamp |
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