Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-07-13
1986-12-09
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291214, 291215, B32B 3120
Patent
active
046271376
ABSTRACT:
A roller for heat- and/or solvent-treatment of fibrous materials has circumferentially extending annuli or spirally arranged rows of coherent or discrete neighboring protrusions each of which has a larger frustopyramidal section nearer to and a smaller frustopyramidal section more distant from the peripheral surface of the cylindrical body of the roller. The taper of facets of the smaller frustopyramidal sections is less pronounced than the taper of the facets of the larger sections, and the distance between the bases of two neighboring larger sections is less than half the height of a protrusion. The top lands of the smaller sections are relatively large and, due to the less pronounced taper of the facets of such smaller sections, the top lands can be reground a large number of times without unduly increasing their areas so that the rate of transfer of heat from the cylindrical body to the top lands and thence to the adjacent fibers is not unduly affected by repeated grinding. The heights of the smaller sections is less than the height of the larger sections. This also promotes satisfactory transfer of heat from the cylindrical body, through the larger sections and to the top lands of the respective smaller sections.
REFERENCES:
patent: 1305330 (1919-06-01), Wolever et al.
patent: 2839785 (1958-06-01), Stevens
patent: 3114312 (1963-12-01), Laue
patent: 4110152 (1978-08-01), Dunning et al.
Eley Timothy V.
Goldberg Howard N.
Kontler Peter K.
Robert Casaretto KG
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