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US 4,540,364 AGranted
Pusher-type furnace
OwnerPeter Ebnerinventor
Life of this patent
Estimating the term…
Abstract
The material to be processed through a furnace is carried on skid rails by sliding shoes. In order to reduce the friction between the skid rails and the sliding shoes, and the breakaway forces at the start of the pushing motion, slip plates are fitted in shallow recesses in the top of the skid rails.
Claims2
In a pusher-type furnace comprising skid rails for sliding shoes to carry material to be processed through the furnace, and
- slip elements to reduce the friction between the rails and the sliding shoes,
- wherein the improvement comprises said slip elements consisting of stationary plates fitted in spaced shallow recesses in the top of said rails and defining gaps therebetween, said slip plates being arranged in two longitudinal rows in the top of each rail and having superficial grooves running at an angle to the rail axis, and said grooves in the plates in one row being arranged as a mirror image of said grooves in the plates in the other row.
Dependencies are inferred from the claim text.