专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明专利

GB706210A Improvements in gauges for measuring or comparing diameters of cylindrical bodies 未知
公开(公告)号：GB706210A
公开(公告)日：1954-03-24
申请号：GB1658651
申请日：1951-07-12
申请人： JOHN RAE , BLAXLAND RAE PTY LTD
IPC分类号： G01B5/08
摘要： 706,210. Linear-dimension gauges. RAE, J., and BLAXLAND RAE, PTY., Ltd. July 12, 1951 [July 14, 1950], No. 16586/51. Class 106 (2) A gauge for measuring and comparing internal or external diameters of cylindrical bodies comprises a ring having a contact diameter slightly larger than the diameter to be gauged, the ring having an arcuate work engaging face and having a substantial depth relative to its radial thickness so that it is flexible in its own plane and substantially inflexible in any other plane. Fig. 10 shows in cross section an example of a ring 26 for gauging bore holes, the ring having a known outer diameter that is slightly greater than the diameter of the bore hole. On forcing the ring into the bore hole the ring assumes an elliptical shape in a plane inclined at an angle to the plane normal to the longitudinal axis of the bore hole. This angle is a measure of the diameter of the bore hole. The ring 26, Fig. 7, may be rotatably held in a shouldered recess 30, Fig. 5, formed on the periphery of a disc shaped plate 31, by the heads of four screws (not shown) screwed into the holes 32. The circle joining the outer edges of the four screw heads is less than the external diameter of the ring 26. The diameter of the recess 30 is less than the undistorted internal diameter of the ring 26 to permit reduction in the ring diameter when distorted. A bubble vial V, Fig. 13, may be provided at the end of a handle 33 secured to the plate 31 for use in determining the angle of tilt of the ring 26 in the bore C. Fig. 11 shows in cross section an example of a ring 18 for gauging external diameters of cylinders, the ring having an internal diameter slightly greater than the diameter to be gauged. If the ring is caused to closely embrace the cylinder being gauged the ring will assume an elliptical form and the inclination of the plane of the ring to the plane that is normal to the axis of the cylinder is a measure of the diameter of the cylinder being gauged. Figs. 1 and 2 show a holder 15 for the ring 18. The ring 18, Fig. 3, is held in a recess 19 in the holder 15 by retaining washers on screws (not shown) located in threaded holes 20. The diameter of the groove 19 is greater than the undistorted external diameter of the ring 18 so as to accommodate the elliptical shape assumed by the ring when it is distorted. A bubble vial 17 is preferably mounted in a projection 16 of the holder 15 to assist in determining the inclination of the ring 18 when gauging the diameter of a cylinder.

IPRDB

热门服务

关于我们

友情链接

联系方式