Method of forming a lightweight cylinder

Details Method of forming a lightweight cylinder Method of forming a lightweight cylinder

1992-07-20

1993-12-07

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Assembling or joining

428 369, 29446, B23D 1902

Patent

active

052673880

ABSTRACT:
A modular cylinder comprises a plurality of, in this case 24, modules each having a tongue to engage a groove of its neighbour and each either having a camming ramp to engage a camming ramp of its neighbour, or a filler rod inserted between adjacent modules at each interface. Where the camming means are provided, (n - 1) of the modules defining an almost complete cylinder and can then be strained in a radially outward direction to provide space for the final module which is placed in position by sliding longitudinally of the gap. Where the filler rods are used, all of the n modules may be loosely assembled in a first operation and the filler rods can be inserted in a second operation to pre-stress the cylinder. First filler rods of undersized type may be installed to hold the array of a module in loosely assembled configuration, and these may then be sequentially replaced by correctly sized larger filler rods.

REFERENCES:
patent: 2230032 (1941-01-01), Freyssinet
patent: 3616521 (1971-11-01), Boggio
patent: 3926134 (1975-12-01), Closner et al.

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