GB903116A - Improvements in linkages producing straight line motion - Google Patents
Improvements in linkages producing straight line motionInfo
- Publication number
- GB903116A GB903116A GB2854258A GB2854258A GB903116A GB 903116 A GB903116 A GB 903116A GB 2854258 A GB2854258 A GB 2854258A GB 2854258 A GB2854258 A GB 2854258A GB 903116 A GB903116 A GB 903116A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- bracket
- coupled
- discs
- lens
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
-
- 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)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
903,116. Windscreen wiper mechanisms. PARSONS, R. July 10, 1959 [Sept. 5, 1958], No. 28542/58. Class 138 (1). [Also in Groups XX and XXIV] In linkwork ensuring that a device, such as a camera, lamp, lens, pen or windscreen wiper, carried by a bracket 26 moves only in a straight line and remains parallel to itself, the bracket 26 is supported from a bracket 18 on a fixed stand 19 by two pairs of equal length parallel rods 15, 16 and 24, 25 pivoted on an intermediate member 21, the rods 16, 24 being coupled by means such as gear segments 29 so that they move through equal angles in opposite directions. Alternatively or additionally the rods 15, 25 may be similarly coupled. A spring 31 may be provided between rods 15, 25 to counterbalance the member 21. Alternatively counterweights or frictional joints may be employed. As shown, the bracket 17 is fixed to a tube 18 clamped to the stand 19, and the bracket 26 has a tube 27 for carrying a lens. Alternatively the bracket 18 may be rotatable on the stand 19 and rest against an adjustable collar thereon so that the lens may be traversed in a plane parallel to a surface 30 to be examined. To avoid interference between the rods when brought together the line joining the pivots on the bracket 17 is is inclined to the vertical. The two pairs of rods may be in different planes to allow them to pass one another. In a modification, the gear segments 29 are replaced by discs 37, 38, Fig. 4, on the ends of the rods 16, 24, the two discs being coupled by a strip of material or by intermeshing nylon threads 39, 42 attached to and wrapped around the discs. In a further modification dispensing with the gear segments 29 the rods 16, 24, Fig. 3, have a common pivot 34 on the member 21 and are coupled by links 36, 35, respectively, parallel to the rods. Means may be provided to reciprocate the bracket 26.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2854258A GB903116A (en) | 1958-09-05 | 1958-09-05 | Improvements in linkages producing straight line motion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2854258A GB903116A (en) | 1958-09-05 | 1958-09-05 | Improvements in linkages producing straight line motion |
Publications (1)
Publication Number | Publication Date |
---|---|
GB903116A true GB903116A (en) | 1962-08-09 |
Family
ID=10277275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2854258A Expired GB903116A (en) | 1958-09-05 | 1958-09-05 | Improvements in linkages producing straight line motion |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB903116A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3517853A1 (en) * | 1984-05-18 | 1985-12-05 | Ronald J. Harbor Oreg. Wimberley | EXTENDABLE DEVICE |
EP0181490A1 (en) * | 1984-10-13 | 1986-05-21 | Friedhelm Schwarz | Device for producing cartesian horizontal and vertical motion |
DE9111018U1 (en) * | 1991-09-05 | 1991-11-28 | J.D. Möller Optische Werke GmbH, 2000 Wedel | Suspension device for an observation device |
US5180136A (en) * | 1991-08-19 | 1993-01-19 | Weber-Knapp Company | Counterbalance mechanism |
-
1958
- 1958-09-05 GB GB2854258A patent/GB903116A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3517853A1 (en) * | 1984-05-18 | 1985-12-05 | Ronald J. Harbor Oreg. Wimberley | EXTENDABLE DEVICE |
EP0181490A1 (en) * | 1984-10-13 | 1986-05-21 | Friedhelm Schwarz | Device for producing cartesian horizontal and vertical motion |
US5180136A (en) * | 1991-08-19 | 1993-01-19 | Weber-Knapp Company | Counterbalance mechanism |
DE9111018U1 (en) * | 1991-09-05 | 1991-11-28 | J.D. Möller Optische Werke GmbH, 2000 Wedel | Suspension device for an observation device |
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