Apparatus for the measurement of the wall thickness of coated ro

Details Apparatus for the measurement of the wall thickness of coated ro Apparatus for the measurement of the wall thickness of coated ro

1976-04-20

1978-04-25

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

73620, 264 402, 425141, 425169, 425466, B29F 310

Patent

active

040860442

ABSTRACT:
Apparatus for ascertaining the concentricity of the core of an elongated cable with its coating includes a means for establishing a predetermined axial position of the core with respect to the apparatus, as by sensing the intensity of a magnetic field produced by a current induced in the core. With the core in the established position, a second means ascertains the position of the lateral or transverse cross sectional dimension of the cable. Such means may comprise a photoelectric device responsive to the shadow of the cable. Any deviation in the position of the cross sectional dimension results from eccentricity and may be used as an indication of such.

REFERENCES:
patent: 3128500 (1964-04-01), Cunningham
patent: 3502752 (1970-03-01), Brown
patent: 3914356 (1975-10-01), Dembiak et al.

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