Abstract: A tractor front linkage quick attach coupling system for interlocking a tractor to a tool front linkage assembly. The coupling system comprises linkage assembly anchoring arms engaging complementary tractor inclined ramps. The arms have notches engaging upper rim members and lower cam members. The cam members are movable between arms/ramps locking/unlocking conditions. A cam member release preventing safety device is provided, to prevent accidental release of the coupling system. This safety device includes sliding stops, over-center compression spring mounted connector rod members, a transverse link, a push link and a hand lever for deactivating the safety device.

Abstract: A front retracting plow comprising a vehicle mount for mounting the plow ahead of a tractor vehicle, a stationary intermediate blade mounted to the vehicle mount and at least one pair of opposite first and second relatively slidable lateral blades for travel in independently controlled fore and aft paths parallel to each other, and a pivotal linkage arm assembly interconnecting the at least one pair of lateral blades and the intermediate blade and for continuous sliding operational motion of the lateral blades parallel to one another in opposite directions wherein a laterally continuous forward ground scraping action is achieved.

Abstract: This invention relates to a towing apparatus for towing a disabled automobile. The towing apparatus includes an elongated boom having at each end portion a large rectangular aperture. A generally L-shaped wheel support member is also provided, having an elongated arm and a transverse wheel retainer forming an arcuate sheet. The cross-sectional width of the wheel support arm is substantially smaller than the width of the enlarged aperture of the elongated boom, so that the wheel support arm be freely engageable transversely through the boom enlarged aperture and freely slidable lengthwisely of the arm. An anchor member releasably anchors the wheel support arm orthogonally to the boom. The anchor member includes another wheel retainer, so that opposite lower sides of the disabled car wheel tire tread be taken in sandwich therebetween, thus positively locking the wheel to the towing apparatus.