Device for introducing anti-microphony sponge into an air-cored

Details Device for introducing anti-microphony sponge into an air-cored Device for introducing anti-microphony sponge into an air-cored

1981-10-15

1984-07-24

Truhe, J. V.

Metal working

Plural diverse manufacturing apparatus including means for...

Separate tool stations for selective or successive operation...

295646, 295647, 29235, 29451, 336185, 336195, 336208, B23P 2300

Patent

active

044610696

ABSTRACT:
A device for introducing an anti-microphony sponge into an air-cored coil for television channel selectors, comprising an axially displaceable hollow mandrel with an end portion which comprises two diametrically oppositely situated slots. Two blocking members can be introduced into the slots, after which cutting means are displaceable in a direction transversely of the axis of the mandrel. After the introduction of a length of spongy material into the mandrel, an air-cored coil is arranged on the end portion of the mandrel, after which the blocking members are moved into the slots so that the length of spongy material is clamped on both sides of the air-cored coil. Subsequently, the mandrel is withdrawn from the coil and the length of spongy material is cut in the zone between the blocking means and the withdrawn mandrel so that a piece of spongy material is left behind in the air-cored coil. The blocking members return to their starting position and the air-cored coil with the piece of spongy material is discharged from the device.

REFERENCES:
patent: 1702031 (1929-02-01), Wesseler
patent: 3145464 (1964-08-01), Green
patent: 3707693 (1972-12-01), Hatton
patent: 3894328 (1975-07-01), Jansson

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