Apparatus for heat treatment of discrete metallic commodities

Details Apparatus for heat treatment of discrete metallic commodities Apparatus for heat treatment of discrete metallic commodities

1976-04-28

1977-05-24

Dost, Gerald A.

Metallurgical apparatus

Means treating solid metal

C21D 100

Patent

active

040250610

ABSTRACT:
Apparatus for heating coil springs or other metallic commodities has a furnace defining a chamber for one or more upright cylindrical supports which form part of a conveyor system for moving an endless chain or band lengthwise so that successive holders of a series of equidistant holders for coil springs on the chain or band advance through the chamber. The chain or band is trained around the cylindrical support or supports in such a way that it forms at least one helix during travel through the chamber, and around one or more pulleys or sprocket wheels located outside of the chamber and being driven by a variable-speed motor. The helical configuration of the chain or band portion in the chamber of the furnace lengthens that portion of the path for the holders which is located in the chamber and thus prolongs the intervals of dwell of successive springs in the furnace.

REFERENCES:
patent: 1011396 (1911-12-01), Abbott
patent: 2696978 (1954-12-01), Siegel
patent: 3356354 (1967-12-01), Beljaev et al.

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