John L Weldon

US Patent:

44044500, Sep 13, 1983

Filed:

Jan 11, 1982

Appl. No.:

6/338391

Inventors:

John F. Weldon - West Bloomfield MI

International Classification:

B23K 904

US Classification:

219 7612

Abstract:

A roll welding machine has the frame mounting head and tail stocks for axially supporting a castor roll having a crack therein. The heat source is mounted upon the frame below and along the length of the roll for maintaining said roll at a minimum temperature of 600. degree. F. , approximately. An upright support of inverted U-shape is secured to the frame and includes upright standards. Vertically adjustable interconnected slide carriers are mounted upon the standards and connected to a power winch by cables and pulleys. A power reciprocated cross slide is mounted upon the slide carriers and mounts horizontal support beam on which is guidably mounted a travel carriage supporting a depending welding head assembly. A welding wire drive feed head feeds the welding wire from a drum journaled upon the carriage. The side and ends of the roll are enclosed to define a uniform heat zone chamber whereby while the roll is welded, it is maintained at the minimum preheat temperature.

US Patent:

42070660, Jun 10, 1980

Filed:

Sep 25, 1978

Appl. No.:

5/945763

Inventors:

John F. Weldon - Birmingham MI

Assignee:

Fire Rite, Inc. - Detroit MI

International Classification:

F24J 300

US Classification:

432225

Abstract:

A retractable gantry heat treat furnace includes an elongated refractory bed mounted upon a floor for supporting metal parts for heat treatment. A pair of spaced tracks are mounted upon the floor upon opposite sides of the bed and extend longitudinally outward from one end thereof. An upright bulkhead is mounted upon said floor at the other end of said bed transversely thereof. An upright furnace housing having a closed end and an open end is movably mounted upon the tracks and has a retracted load position outwardly of said bed and adapted to move to a closed position over and enclosing said bed and sealed against said bulkhead. A series of spaced inwardly directed burners are mounted upon and along the side walls of the housing in communication with the interior thereof and are adapted for energization when the housing is in a closed position. Layers of insulation are arranged upon the interior of the side, top and end walls and upon the interior walls of the bulkhead, said burners extending through said side wall layers of insulation.