Drag link chain

Details Drag link chain Drag link chain

1987-04-20

1989-02-28

Valenza, Joseph E.

Conveyors: power-driven

Conveyor section

Pusher conveyor and separate load support surface

474234, B65G 1924

Patent

active

048077429

ABSTRACT:
An improved drag link chain is fabricated from a plurality of links joined together in articulated relationship for moving bulk material along a trough or other conveying surface. The links are made having an open end and a closed end. The closed end includes a barrel having a flat side for pushing material. The barrel is disposed within the closed end with its flat side facing inwardly from the closed end toward the open end of the link. The barrel has a rounded back side that seats on a tooth of a sprocket so that a joint of articulation is caused between an inner diameter of a bore of the barrel and an outer diameter of a pin that joins together open and closed ends of tandemly connected links to form an endless drag chain. The barrels of the links, when engaged by teeth of a sprocket are seated thereon with no relative rotation therebetween and thereby avoid excessive wear on the barrels and the teeth of the sprocket.

REFERENCES:
patent: 2159396 (1939-05-01), Miller
patent: 3054301 (1962-09-01), Kimmerer et al.
patent: 3665704 (1972-05-01), Trudeau
patent: 4276040 (1981-06-01), Petershack

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