Abstract: A woodworking joint cutting jig and method having a template repositionably attachable to a base in a plurality of alternative positions established by receiving a pin on one of the base or template in one of a plurality of holes on the other of the template and the base.

Abstract: A woodworking joint cutting jig and method having a template repositionably attachable to a base in a plurality of alternative positions established by receiving a pin on one of the base or template in one of a plurality of holes on the other of the template and the base.

Abstract: A woodworking joint cutting jig comprised of a dovetailing template repositionably attachable to a beam, together with a side stop, a template, and a plurality of removable pin plates that establish positions along the beam for attachment of the template.

Abstract: A woodworking joint cutting jig comprised of a dovetailing template repositionably attachable to a beam, together with a side stop, a template, and a plurality of removable pin plates that establish positions along the beam for attachment of the template.

Abstract: A hydraulic lift/flotation system for the header of a crop harvesting machine wherein each side of the header is supported by a single cylinder, which performs both the flotation and lift functions. For even lifting and flotation of an unbalanced header, each cylinder has its own control valve, pump, and accumulator. The operator sets the desired flotation force by actuating rocker switches; one switch position allows hydraulic oil to enter an accumulator to reduce header contact force with the ground. The other position allows oil to exit the accumulator to increase header contact force with the ground. To evenly float an unbalanced header, separate switches adjust each side independently. Once the flotation forces are set, the control valves will return to this preset flotation condition whenever float mode is selected, regardless of subsequent header lift and lower operations.

Abstract: Windrow shields that pivot adjacent the forward ends thereof into and out of the path of crop material to control the width of the windrow. An electric motor and linkage to the shields allows the special relationship between the shields to be adjusted on-the-go from the operator's location.

Abstract: A cab mounting and suspension system for an agricultural windrower that uses pivoting elastomeric mounts on the front corners of the cab and coil-over shock absorbers on the rear corners. A stabilizing bar is mounted on elastomeric isolators and located between the cab and the windrower frame across the back of the cab. The bar extends the full width of the cab to reduce the amount of movement of the cab from side to side as the rear pivots up and down through the range of the coil-over shocks.

Abstract: A suspension system for the rear axle of a self-propelled agricultural windrower. The axle is split into two components, each having an air spring to absorb shocks. The two air springs are interconnected by a tube to equalize the internal pressure. A pair of pins can be inserted through the respective axle components and a structural member of the tractor to fix the components relative to the unit structure, thereby incapacitating the suspension and permitting effective steering of the tractor in the absence of a header.

Abstract: A neutral start interlock for a hydrostatic drive system that uses potentiometers to electronically monitor at least the position of the hydrostatic displacement control such that the engine will not start unless such control is in the neutral position.

Abstract: An adjustable hydrostatic control system that adjusts in length to locate mutual neutral locations while transmitting the necessary torque through mating sliding spines.

Abstract: A mold plug for use in a mold, the mold being used in a rotary concrete casting process to make a cast article, the mold plug comprising: a rigid internal core having an internal engagement means to secure the plug in the mold during casting and to facilitate removal of the plug from the cast article after casting is complete; and a pliable external cover on the internal core, the external cover having a surface adapted to not bond with concrete, and having a predetermined size and shape, wherein, when the mold plug is removed from the cast article after the casting is complete, a hole of a predetermined size and shape is left in the cast article.