Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1976-11-15
1978-09-12
Lanham, C.W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
165182, B23P 1526, B22C 1700
Patent
active
041125690
ABSTRACT:
A method is disclosed for manufacturing a tube coil useful as a heat exchanger wherein the tube coil comprises a plurality of slightly spaced, parallel tubes wound onto a supporting core. The tubes are wound at an angle to the radial plane of the support. The winding direction is reversed with respect to the radial plane at an odd number of radial angle positions of the coil and separate tubes of a subsequent winding turn are positioned in the spaces between adjacent tubes of the preceeding winding turn.
REFERENCES:
patent: 3639963 (1972-02-01), Maher
patent: 3890104 (1975-06-01), Porta et al.
patent: 4013117 (1977-03-01), Kopetzki et al.
Margen Peter Heinrich Erwin
Naslund Rolf Paul
Aktiebolaget Atomenergi
Lanham C.W.
Rising V. K.
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