Abstract: An articulating bed frame includes a main frame; a back section connected to the main frame by first and second linkage assemblies, each of the first and second linkage assemblies being pivotally connected at first and third ends to the back section and pivotally connected at opposing respective second and fourth ends to the main frame; an upper leg section connected to the main frame by a third linkage assembly and a support link assembly, the third linkage assembly being pivotally connected at opposing fifth and sixth ends to the upper leg section and the main frame, respectively, and the support link assembly being rigidly connected at a seventh end to the upper leg section and being slidably and pivotably connected at an opposing eighth end to the main frame; a seat section pivotally connected at opposing ends to the back section and the upper leg section; a lower leg section pivotally connected to the upper leg section and freely supported atop a forward end of the main frame; and, a drive assembly conne

Abstract: A saw mill includes a base frame having a front and a rear and being sized and configured to support a log; saw apparatus having a cutting blade and being connected with the base frame for horizontal movement in a cutting stroke from a start position near the front of the base frame to an end position near the rear of the base frame and in a return stroke back to the front of the base frame and being for cutting in a generally horizontal plane a board from the log; power apparatus for powering the saw apparatus; at least one pushback arm connected to the saw apparatus and being sized and configured to engage and eject the board from atop the log during the return stroke; and, a board guide apparatus extending generally forwardly from the saw apparatus and including a crossbar and plurality of fingers connected with the crossbar and positioned to engage and guide the board in a desired path as it is being ejected from the log, each finger including an upper link connected to the crossbar and a lower link hinge

Abstract: A saw mill includes a base frame having a front and a rear and being sized and configured to support a log; saw apparatus having a cutting blade and being connected with the base frame for horizontal movement in a cutting stroke from a start position near the front of the base frame to an end position near the rear of the base frame and in a return stroke back to the front of the base frame and being for cutting in a generally horizontal plane a board from the log; power apparatus for powering the saw apparatus; at least one pushback arm connected to the saw apparatus and being sized and configured to engage and eject the board from atop the log during the return stroke; and, a board guide apparatus extending generally forwardly from the saw apparatus and including a crossbar and plurality of fingers connected with the crossbar and positioned to engage and guide the board in a desired path as it is being ejected from the log, each finger including an upper link connected to the crossbar and a lower link hinge

Abstract: A fuel tank mountable to a machine with an engine includes a body with at least one wall and at least a first boss integrally formed with the one wall and extending outwardly therefrom, the at least a first boss having an exterior surface configured for mating, locking attachment to a ratainer; a bracket having first and second sides and being connectable to one of the machine and the engine, the bracket having a hole sized to receive a boss therethrough with the body adjacent the first side of the bracket; and, a retainer sized and configured for mating, locking attachment to the at least a first boss adjacent the second side of the bracket.

Abstract: A gang mower assembly comprising a rigid frame elongated in the direction of forward movement of the assembly, the frame including a forward end portion, a central portion, and a trailing end portion. A central rotary mower deck is disposed adjacent the central portion and a universal joint for connecting the central deck to the central portion for at least limited universal movement relative to the frame about axes generally parallel to the frame and generally perpendicular to the frame is provided. The assembly further comprises at least one outboard rotary mower deck and at least one inboard rotary mower deck, and ground-engaging wheels for individually supporting each deck for independent movement relative to the frame. Each of the decks comprises a rotary blade assembly defining a centrally located, upwardly extending rotary axis and pulleys mounted on the axis to provide an input drive for the blade assembly.

Abstract: A sawmill has an elongated track extending longitudinally adjacent a platform for supporting a log. A carriage which carries a bandsaw is reciprocally movable along the track past the platform to cut the log with the bandsaw. The sawmill also has a clamp mechanism reciprocally movable laterally across the platform to clamp the log in place, which mechanism is movable between an upright position and a reclining position to provide a clamp for an uncut log and a clamp for a squared log. The sawmill also has a log turning mechanism and a log loading mechanism. The log loading mechanism includes two arms which are rotatable from the ground to the platform to load a log onto the platform. A hydraulic cylinder is coupled to each arm and acts against the ground to move the arms. The mechanisms are hydraulically actuated and the sawmill includes an electric motor which drives a hydraulic pump for providing pressurized hydraulic fluid to actuate the hydraulically actuated mechanisms.

Abstract: A band saw wheel and blade combination including a pulley having a peripheral groove and a tire mated with and received within the groove. The tire has an inner diameter greater than the inner diameter of the groove to be free floating within the groove. The band saw blade is received against the outside surface of the tire and forces the tire into the groove. As a result, a firm frictional contact between the tire and the pulley and between the band saw blade and the tire is achieved to provide a strong driving force of the blade by the pulley.

Abstract: A process and apparatus are disclosed for accelerating the drying of green and/or partially dried lumber. The lumber is dried at pressures below standard atmospheric pressure to rapidly remove moisture from the lumber without degrading the wood structure. A kiln for performing this function includes a chamber for a charge of lumber, an electrically activated flexible heating blanket to impart heat into the charge of lumber, a device for reducing pressure within the chamber, and a device for removing moisture vapor from the chamber. The process for accelerating the drying of the wood includes the step of heating the wood piece in the chamber to a selected temperature. The pressure in the chamber is reduced to a pressure at least as low as the vapor pressure of water at the selected temperature. The wood is controllably heated to maintain the wood at the selected temperature while the pressure in the chamber is reduced.

Abstract: A portable saw mill apparatus includes a frame carrying supporting wheels, outriggers and a trailer hitch. A horizontal, unitized tubular track is secured to the frame and a carriage is moveable along said track. Mounted on the carriage is a horizontal, cantilevered band saw which is moveable vertically. Logs are received on support members secured to the frame, and the band saw is moved longitudinally of the frame to make successive cuts of the saw. Lowering of the band saw between successive passes provides for spacing of the cuts of the log. A single lever control enables the operator to positively engage or brake the band saw, and also to control the engine throttle.

Abstract: An electrically operable hospital bed having a main frame, an articulated mattress support frame including head and thigh sections movable to various positions of inclination with respect to the main frame, an operating mechanism for elevating the head section, and an automatic contouring mechanism including linkage interposed between the thigh section and main frame selectively actuable to move in response to elevation of said head section to support and progressively elevate the thigh section. The mechanism may be deactivated to permit elevation of the head section without elevation of the thigh section.Manual thigh section elevation means are provided with capabilities for further elevation of the thigh section without affecting the automatic mechanism or for operation of the thigh section independently of movement of the head section.

Abstract: A hospital bed having a primary frame and a mattress frame supported on casters through a parallelogram linkage and having locking devices for achieving Trendelenburg and reverse Trendelenburg positions.

Abstract: An improved control and locking device for a hospital bed such as that disclosed in U.S. Patent Application Ser. No. 496,212, filed on Aug. 9, 1974. The locking device is utilized to provide a positive lock of the hospital bed in a Trendelenburg or reverse Trendelenburg position and eliminate the capability to manualy or inadvertently remove the bed from such position. As depicted herein, the locking device is a pivotal abutment which normally precludes release of a hook holding the bed in a Trendelenburg position. Yet, when the entire bed is raised by its electric motor, the abutment is automatically withdrawn from its abutting, locking position to permit the bed to lower under electric power.

Abstract: An elevating and Trendelenburg mechanism for a hospital bed providing elevated Trendelenburg positions and positive latching of cooperating members. Two torque tubes pivotally attach to an elevating frame. Lift arms welded to the torque tubes support the frame at various elevations. A motor on the frame produces rotation of a yoke pivotally attached to one of the torque tubes. The yoke abuts a first drive arm rigidly attached to the tube to lift one end of the frame, and a second drive arm pivotally attached to the tube. A rod connects the second drive arm to a pivot plate as a second rod connects the pivot plate to a third drive arm welded to the other torque tube to lift the other end of the bed. When the frame raises to about its maximum height, one of two hooks on the frame may prevent the first or second drive arm from following a receding yoke, with the result that one end of the bed remains elevated while the other lowers.