| 摘要 |
<p>836,739. Nuclear reactors. DUNCAN, J. P., MURRAY, N. W., and THOMPSON WATER TUBE BOILERS Ltd., J. April 8, 1958 [April 9, 1957] No. 11456/57. Class 39(4). A pressure vessel has corrugated walls comprising shell members curved in two directions, fastened along their junction with each other to ribs of a supporting structure. The support structure 10 carries loads due to supports for and pipe entry to the vessel. The shell members 20 preferably have the shape which would be taken up by a soap film on the support structure, since they need bear only forces due to the internal pressure, but may be of simpler forms. The vessel may be basically spherical, cylindrical or flattened. Steel shell members may be used which are concave from inside the vessel, Figs. 1, 2, or concrete members which are convex from inside, Fig. 11. In the flattened form of vessel the support structure may need stiffeners and the members inside. The structure may be of rolled steel joist or of structural sections. Closure members for the vessels may be flat plates or curved plates in supporting frames.</p> |
