Other

Andrew Clyde Smith

Poul Erik Damkjaer

Jack R Raum

A conveyor belt (,) is composed of a number of identical links in the formation of an endless belt, where each link comprises at least one axle (,) arranged transversely in relation to the direction of travel (,), and an outer link (,) at each side in engagement with the axle. Each outer link comprises an elongated hole for the adjacent link's axle, so that the belt can be driven in a curve in the plane of the belt. Each outer link has at least one securing hole for a transverse axle, where the coupling-together between the axle (,and the outer link (,) is effected by a separable snap-lock. The outer link is moulded as a one-piece unit in a suitable plastic material, preferably by injection moulding. The outer links (,) can also be configured in a larger version for the construction of conveyor belts for operation in self-stacking helical systems.

Transport band for conveying along a spiral path

A pump jack hoisting apparatus includes a safety railing for protecting workers from accidental falling. The apparatus includes a pair of laterally spaced pump jack poles each of which is associated with a respective pump jack. Each pump jack includes inner and outer support extensions for supporting thereon inner and outer walking platforms. A pair of generally L-shaped support frames is removably secured to the outer support extension of the respective pump jack. Each support frame includes a vertically extending arm and a horizontally extending brace. The brace includes a mounting member for engaging the outer arm of the respective pump jack. A plurality of generally L-shaped rail brackets are vertically spaced on the arms and include a top-open recess. A safety rail is removably positioned in the recess and extends between the pair of support frames.

Growing community of inventors

Oakton, VA, United States of America

Andrew Clyde Smith