Two piece rider assembly

Details Two piece rider assembly Two piece rider assembly

1998-03-23

1999-07-13

Walberg, Teresa

Heating

Heating apparatus element having protective cooling structure

Work skid or rail structure

432236, 432246, F27D 302

Patent

active

059217723

ABSTRACT:
The two piece rider assembly consist of a base piece that is welded to the skid pipe of a steel slab reheat furnace and a top piece that is removably attached to the base piece. The base piece has a cut out slot divided into three sections. The center section has strait walls and the front and back sections have walls that slope into the cut out to reduce the cross sectional distance. The cut out is open at the front section. The top piece has two protrusions with dove tail looking cross sections that fit into the front and back sections of the cut out slot of the base piece. The tip of the dove tail protrusion is wider than the neck of the cut out slot in the base piece so that upward movement is prevented when they are engaged. The protrusions are separated by at least the distance of the front section of the cut out slot of the base piece. The top piece is mounted to the base piece by dropping it so that the first protrusion drops into the center section of the cut out slot and the second protrusion drop in front of the open front section. The top piece then slides back with the protrusions preventing sideways and upward movement. A pin is inserted into a cavity created by a groove on each piece to prevent forward movement of the top piece locking it in place. The entire assembly is used in combination with other such assemblies spaced apart no less than necessary to slide the top piece forward and up facilitating easy replacement of the worn top parts.

REFERENCES:
patent: 4689009 (1987-08-01), Heuss

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