| 摘要 |
1284194 Sealing joints FRIEDRICH MAURER SOHNE 30 Nov 1970 [26 March 1970] 56833/70 Heading E1B Uniform spacing between adjacent plates I and 2 of a grating bar expansion joint is maintained by control members comprising a spindle 5 passing therethrough and carrying a plurality of dished spring washers 8 and 9 between the plates and between the plates and a fixed abutment 7 and an adjustable abutment 6. Conventional resilient packing closes the joint. Stops 11 prevent the plates getting too close. The spindle may have spacing collars thereon or pass through collars mounted on the plates. At the edge of the joint the spindle projects from the edge beam and through the first plate. The control members may be inclined to the longitudinal axis of the joint. |
