Abstract: In combination with a wheeled first cultivator which is pulled by a prime mover and which has a frame assembly to which ground engaging members are attached, an improved implement comprising a frame, a mounting unit for attaching the frame to the rear of the first cultivator, one or more second cultivators attached to the frame, a drawbar unit pivotally connected at its front end to the implement frame and having a ground engaging caster wheel unit at its rear end, and a hydraulically operated device interconnected between the frame and the drawbar unit to transfer weight forwardly to the first cultivator rear end, such that as weight is applied downwardly on the implement frame, a positive upward pressure is applied to the rear end of the first cultivator; with attendant advantages in adjusting the down pressure and carrying height of the implement frame.

Abstract: In a boat trailer having a frame including a crossbar, and a pair of bunks for supporting a boat thereon, a support assembly for vertically adjustably supporting the bunks on the crossbar including a post unit connected to the crossbar, a bracket unit connected to the bunk, fastening means releasably connecting the post unit and the bracket unit for relative movement therebetween, and a jack screw unit connected between the post unit and the bracket unit for effecting incremental movement therebetween for adjustment of the bunks relative to the frame without the need of effecting a complete separation of the post unit and bracket unit by removal of the fastening means.

Abstract: A boat trailer having elongated bunk units for engagement with a portion of the hull of a boat, the bunk members rockable about a normally horizontal axis longitudinally of the boat for automatic nesting engagement with the boat hull, accommodating the improved hull engaging bunk units for a variety of various designed craft hulls.

Abstract: A boat trailer having a frame with a tongue section at the front end and a pair of transversely spaced parallel frame members at the rear end, a wheel and axle unit interconnecting the frame members, and a crossmember extended between the frame members, the improvement comprising a bracket connected to each end of the crossmember and connected also to an adjacent frame member, an arm extended outwardly and upwardly of each frame member, a fastener securing one end of the arm to the bracket, and a bunk-type cushion secured to the other end of the arm for engaging a boat hull upon loading of the boat onto the trailer.

Abstract: A winch assembly for mounting on a boat trailer having a casing substantially enclosing the conventional winch apparatus, and including adjustable mounting provisions for maintaining the winch strap in alignment with and close proximity to a bow stop for proper securement to the bow eye of the boat for loading purposes, regardless of the position of the winch assembly on the boat trailer.

Abstract: A boat trailer having elongated bunk units supported fore and aft on the trailer by respective bracket units which are longitudinally and transversely adjustable with the fore bracket unit vertically adjustable, and further with both bracket units rockable about a normally horizontal axis longitudinally of the trailer and boat, providing both a full engagement and conformity of the bunks with the hull of the boat and an automatic nesting engagement with the boat hull, accommodating the bunk units to the great variety of hull configurations.

Abstract: A boat trailer having a frame with a tongue section at the front end, a pair of transversely spaced frame members at the rear end, a wheel and axle unit supporting the trailer rear end, a unit mounted on the frame for supporting a boat thereon, fore and aft and the improvement comprising a bracket mounted on the tongue section, a winch mounted on the bracket for detachable connection to the bow of the boat, and a jack stand also mounted on the bracket and movable between a position supporting the trailer front end over a ground surface, and a position aligned with and longitudinal of the tongue section.

Abstract: A roller assembly for supporting a boat on a trailer which has a hub with a resilient surface, and wherein the hub rotates on a cat's eye-shaped bushing which allows limited swivel and acts as a positive guide to the boat hull for providing straight line loading.

Abstract: A boat trailer having a frame, wheel unit, an adjustably mounted winch unit including a keel engaging member, an elongated second keel engaging member pivotally mounted on the frame rearwardly of the winch unit and self-centering to engage a longitudinal length of the keel, a pair of fender units each of which is reversibly mountable on either side of the frame for protecting a wheel, a pair of unitary post load guide brackets slidably engaged with the rear of the frame members and each supporting both a post guide and a rear taillight, a cross member pivotally and longitudinally adjustably mounted at each end to a frame member, and a pair of bunks and a pair of aligned, resiliently mounted roller units interchangeably mounted on said cross member for providing an automatic, full line engagement of either the bunks or the roller units with the bottom of the hull, when loaded, in combination with the second keel engaging member, forming a self-adjusting three point support of the boat hull.

Abstract: A boat trailer having a pair of laterally spaced frame members, a cross member unit disposed between the frame members, a keel support assembly mounted on the cross member unit intermediate thereof and including a first bracket unit with one portion pivotally mounted to and disposed below the center of the cross member unit, with flanges extended forwardly and rearwardly of the cross member, and with a roller unit pivotally mounted on the forwardly and rearwardly extended flanges of the bracket unit, each roller unit having one or more rollers arranged in a plane common with each other and with the center of the cross member, and whereby the central keel rest upon the rollers and the keel to the sides thereof rest upon the cross member unit.

Abstract: A trailer for hauling a boat having a wheel and axle supported frame including a pair of frame members extended rearwardly from a tongue connection in a laterally spaced relationship, a cross member assembly supported on upper surfaces of the frame members, and bunk-type units mounted on the cross member assembly for engageable with a portion of the hull of the boat, the cross member assembly having a non-load bearing pivotal connection with the frame members while supported thereon.

Abstract: A boat trailer having a frame, a pair of wheels, a mechanism for connecting the trailer to a prime mover, and a roller arrangement rearwardly on the frame for loading, unloading and supporting a boat: the improvement comprising a novel roller arrangement mounting device for a pair of roller assemblies each of which has a pair of rollers, and wherein a single non-metal mounting block provides independent rotatable engagement with the roller assemblies and with a frame connected mounting arm, whereby the roller assemblies are simultaneously rotatable about axes transverse to the frame longitudinal axis and within normally vertical planes to maintain the rollers in constant engagement with the boat hull.

Abstract: A boat trailer having a frame, a wheel and axle unit supporting the frame, a front keel and hull supporting unit mounted on the frame, and a rear cross member, a roller bunk apparatus having a pair of identical roller bunk units each mounted on a side of the longitudinal axis of the trailer; with each roller bunk unit comprising an elongated tubular member disposed parallel an adjacent frame member, and a pair of elongated tubular elements mounted on each member in longitudinal alignment, with the rear element pivotally mounted, and with a plurality of roller units mounted on each element in longitudinal spacing and alignment, and with plate units movably mounted at a rear end of each element for engagement with a trim tab portion of the boat hull.

Abstract: A boat trailer having a frame, a wheel unit supporting the frame, a rear cross member between elements of the frame for supporting a plurality of roller units, and a front cross member between other elements of the frame for supporting a hull supporting unit comprised of an elongated, resilient pad secured to the upper surface of the cross member, and with a plastic or like cover for the pad; and the front cross member having also mounted thereon a keel supporting unit with openings formed in an upper plastic-like element engageable with the front portion of the keel of a boat being transported by the trailer wherein foreign material such as sand and gravel on the keel front portion is removed by said keel supporting unit by passage through the openings, and thereby preventing scouring and scratching of the keel front portion.