GB1242950A - Mechanical linkage - Google Patents
Mechanical linkageInfo
- Publication number
- GB1242950A GB1242950A GB3348369A GB3348369A GB1242950A GB 1242950 A GB1242950 A GB 1242950A GB 3348369 A GB3348369 A GB 3348369A GB 3348369 A GB3348369 A GB 3348369A GB 1242950 A GB1242950 A GB 1242950A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pivoted
- link
- strut
- arm
- july
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/04—Guiding mechanisms, e.g. for straight-line guidance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
1,242,950. Dental chairs. WESTING- HOUSE BRAKE & SIGNAL CO. 2 July, 1970 [2 July, 1969], No. 33483/69. Heading B8J. [Also in Division F2] A linkage particularly to provide vertical movement for a dental treatment support comprises a base 10 and spaced pivots 11, 12 to which a link 13 and strut 14 are respectively pivoted. An arm 15 is pivoted to the other end of the link 13 and a further arm 17 is pivoted at an intermediate point to the strut 14 the two arms being pivotally joined to a further link 18. The strut 14 is pivotally connected to an intermediate point on the arm 15. Drive means are connected between pivots 20, 22 and comprise a worm and nut drive 25, 26 driven by a motor 23 through a toothed belt 24 as shown or may comprise an hydraulic ram or manually operated mechanical means. The arrangement is such that the further link 18 moves perpendicularly to the base 10 and at a constant inclination to it. The dental treatment support may be in two pivoted parts or the linkage may be used for other applications such as camera trolleys.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3348369A GB1242950A (en) | 1969-07-02 | 1969-07-02 | Mechanical linkage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3348369A GB1242950A (en) | 1969-07-02 | 1969-07-02 | Mechanical linkage |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1242950A true GB1242950A (en) | 1971-08-18 |
Family
ID=10353556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3348369A Expired GB1242950A (en) | 1969-07-02 | 1969-07-02 | Mechanical linkage |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1242950A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5161193A (en) * | 1974-11-22 | 1976-05-27 | Yoshida Seisakusho Kk | Shikachiryoyotono isu |
JPS52142792U (en) * | 1977-04-26 | 1977-10-28 | ||
WO1993018318A1 (en) * | 1992-03-10 | 1993-09-16 | R.J. Wallace Pty. Limited | Slewing mechanism |
-
1969
- 1969-07-02 GB GB3348369A patent/GB1242950A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5161193A (en) * | 1974-11-22 | 1976-05-27 | Yoshida Seisakusho Kk | Shikachiryoyotono isu |
JPS6036784B2 (en) * | 1974-11-22 | 1985-08-22 | 株式会社吉田製作所 | dental treatment chair |
JPS52142792U (en) * | 1977-04-26 | 1977-10-28 | ||
JPS6130671Y2 (en) * | 1977-04-26 | 1986-09-08 | ||
WO1993018318A1 (en) * | 1992-03-10 | 1993-09-16 | R.J. Wallace Pty. Limited | Slewing mechanism |
AU675636B2 (en) * | 1992-03-10 | 1997-02-13 | R.J. Wallace Pty. Limited | Slewing mechanism |
US5651576A (en) * | 1992-03-10 | 1997-07-29 | R. J. Wallace Pty. Limited | Slewing machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1301191A (en) | Dump truck body supporting means | |
GB1242950A (en) | Mechanical linkage | |
GB1321051A (en) | Arrangement comprising a platform member conn3cted to a support by linkage | |
GB1414373A (en) | Apparatus for producing pivotal movement of a pair of rear view vehicle mirrors | |
ES436080A1 (en) | Headlamp tilting mechanism in a motor vehicle | |
GB1319593A (en) | Underframe for beds | |
GB1239864A (en) | Co-ordinate table | |
GB1280837A (en) | Apparatus for carrying persons | |
ES424651A1 (en) | Apparatus for reforming and straightening objects | |
GB796938A (en) | Retractable support legs for semi-trailers | |
ES365077A1 (en) | Electromechanical apparatus for imparting an oscillating movement to rocking chairs and the like | |
GB1362323A (en) | Walking beam conveyors | |
GB1333299A (en) | Forging manipulator | |
GB1432768A (en) | Power hack-saws | |
SE330588B (en) | ||
FR2427995A1 (en) | Mobile crane with load lifted by parallelogram linkage - enables load to be supported by constant force in any position | |
GB1331991A (en) | Harvester for beet and the like | |
SU525578A1 (en) | Shkvorneva beam lower frame wagon dump | |
NL152124B (en) | PROCESS FOR PREPARING N-TYPE PHOTO-CONDUCTIVE MATERIAL BASED ON AN ACTIVATED TERNAIRE ALLOY CD * HG (1 - *) SE, IN WHICH 0 X 1 AND PHOTO-CONDUCTING DEVICE IN WHICH THE PREPARED ALLOY IS USED. | |
GB1187524A (en) | Trolleys | |
ES151568U (en) | Perfeccionable elevated flexible position. (Machine-translation by Google Translate, not legally binding) | |
ES102702U (en) | Articulation device for high chairs (Machine-translation by Google Translate, not legally binding) | |
FR2287412A1 (en) | Stabilizer for flat bed semi-trailer with crane - has foot on pivotal arm on L-shaped arm pivotal on bed | |
FR2302065A1 (en) | Retractable and swivelling chair - has mounting with two parallel cantilever arms pivoted at one side | |
ES66765U (en) | Self-regulating articulated bed base (Machine-translation by Google Translate, not legally binding) |