GB856305A - Improvements in screw-and-nut assemblies - Google Patents
Improvements in screw-and-nut assembliesInfo
- Publication number
- GB856305A GB856305A GB3768157A GB3768157A GB856305A GB 856305 A GB856305 A GB 856305A GB 3768157 A GB3768157 A GB 3768157A GB 3768157 A GB3768157 A GB 3768157A GB 856305 A GB856305 A GB 856305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- groove
- nut
- nuts
- clearance
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
- F16H25/2209—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with arrangements for taking up backlash
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
856,305. Screw and nut gearing. RESEARCH ENGINEERS Ltd. Feb. 27, 1959 [Dec. 3, 1957], No. 37681/57. Class 80 (3). In re-circulating ball-type screw and nut gearing the helical groove in one member 1, Fig. 1, is of V cross-section and preferably of Whitworth form while the groove in the other member 2 is of arcuate or elliptical cross-section the radius of curvature being slightly in excess of that of the balls. The inclination C of the line of thrust B, A is always constant and passes through the centre of the balls irrespective of variations in the diameters of screw and nut. The apex of the V groove provides a clearance for lubricant and a clearance 5 is also provided in the other groove. Two nuts may be carried on a movable part 6 of a machine tool by spherical seating members 8 and one may be loaded by springs 9 to take up backlash. The nuts are held in position by screws 10, one of which serves to adjust the compression of the springs 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3768157A GB856305A (en) | 1957-12-03 | 1957-12-03 | Improvements in screw-and-nut assemblies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3768157A GB856305A (en) | 1957-12-03 | 1957-12-03 | Improvements in screw-and-nut assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB856305A true GB856305A (en) | 1960-12-14 |
Family
ID=10398224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3768157A Expired GB856305A (en) | 1957-12-03 | 1957-12-03 | Improvements in screw-and-nut assemblies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB856305A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2132310A (en) * | 1982-12-23 | 1984-07-04 | Yiu Ming Cheng | Machine tool apparatus |
EP0811462A1 (en) * | 1996-06-05 | 1997-12-10 | Black & Decker Inc. | Apparatus for adjusting the relative positions of two components of a power tool |
-
1957
- 1957-12-03 GB GB3768157A patent/GB856305A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2132310A (en) * | 1982-12-23 | 1984-07-04 | Yiu Ming Cheng | Machine tool apparatus |
EP0811462A1 (en) * | 1996-06-05 | 1997-12-10 | Black & Decker Inc. | Apparatus for adjusting the relative positions of two components of a power tool |
US5816303A (en) * | 1996-06-05 | 1998-10-06 | Black & Decker Inc. | Method and apparatus for adjusting the relative positions of two components of a power tool |
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