| 摘要 |
1,218,633. Pressure gauges. P. BUISSON and G. DENEGRE. April 11, 1968 [April 13, 1967], No.17703/68. Heading G1L. A deformable element, such as a bellows, comprises a number of truncated cones assembled successively by their large and small bases and the linear variation of the wall thickness with the radius ensures a condition of equal and minimum stress gradient throughout the element. Diabolo and hollow sphere shaped elements are also described. The element 11 is enclosed in a rigid frame 8 alteration in length of the element 11 is measured by an extensometer 7. |
