Overhead Loader Yoke Mechanism (Patent No: 460683)

Inventor: Thorne, Leonard Raymond

Location: Edmonton

Comments: N/A

Description: Leonard Raymond Thorne, Edmonton, Alberta, Canada
Application December 23, 1946, Serial No. 552,303
2 Claims

Claim.—1. A device consisting of a new combination of parts now in common use resulting in a new mechanism comprising a link pivotally mounted on each side of a traction unit, a U-shaped yoke pivotally connected to the ends of the links remote, from the pivotal mounting of the links, the rear portions of the side members of the U-shaped yoke being bent diagonally in a vertical plane, a double acting hydraulic cylinder mounted on each side of the traction unit between the pivotal mounting of the link and the diagonal portion of the bent U-shaped yoke, a second double acting hydraulic cylinder on each side of the traction unit pivotally mounted between the frame of the traction unit and a point near the pivotal connection between the link and the end of the U-shaped yoke, a scoop member mounted on the yoke.

2. In combination a pivotally mounted link and a yoke attachment consisting of a substantially horizontal section and a diagonal section, both sections being in the same vertical plane, such yoke attachment pivotally connected to the end of the link remote from the pivotal mounting of the link, a double acting hydraulic cylinder pivotally mounted between the point of pivotal mounting of the link and a point on the diagonal portion of the yoke attachment, an additional double acting hydraulic cylinder pivotally mounted between the frame on which the link is pivotally mounted and a point near the pivotal connection between the link and the yoke attachment.