Abstract:
An improved height control system for adjusting the elevation of a harvesting unit supportd for vertical movement on a cotton harvester. The height control system includes a signal receiving apparatus movable within a range of movement and arranged in combination with a lift mechanism for adjusting the elevation of the harvesting unit. A signal transmitting mechanism carried on the harvesting unit for ground engagement is connected to the signal receiving apparatus for causing the lift mechanism to effect harvesting unit elevation correlated with vertical movement of the signal transmitting mechanism relative to the harvesting unit. A linkage assembly interconnects the signal receiving apparatus and signal transmitting mechanism. The linkage assembly includes a lost motion mechanism for permitting relative movement between the signal transmitting mechanism and signal receiving apparatus following the signal receiving apparatus reaching on extreme limit of its travel thereby allowing for continued travel of the signal transmitting mechanism beyond a normal range of travel and thereby inhibiting damage to the component parts of the height control system.
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. Means for positioning each deck relative to its adjacent deck is provided, each positioning means comprising a rigid link having first and second opposite link ends, means for attaching the first link end to one of the decks and means for movably attaching the second link end to an adjacent deck for at least limited swivel movement. A belt drive system for providing a driving connection from a driver to the deck pulleys is provided to drive the rotary blade assembly of each mower deck.
Abstract:
A riding mower includes a frame, front steering wheel, two rear wheels and two mower blade housings located laterally relative to the frame with blades located within the housings. Telescoping drive shafts extend generally longitudinally from a belt drive mechanism located at a rearward end of the frame to the blade housings to drive each of the blades within the housings. Hydraulic cylinder assemblies and a leveling system are provided to pivot the frame with respect to the rear wheels and about a longitudinal axis in response to changes in slope of the surrounding terrain, maintaining the frame in a generally upright orientation. The telescoping drive shafts extend and retract in response to the angular movement of the frame with respect to the blade housings that remain close to the ground surface.
Abstract:
An agricultural machine comprises a frame which is adapted to be hooked to a drive tractor and carries at least one rotor equipped with work tools controlled by a central cam to move products such as hay which are on the ground. The rotor is connected to the frame by a pin which is positioned substantially perpendicular to the direction of advance of the machine and comprises a central support pin on which carrying wheels are connected. The agricultural machine further comprises an actuating mechanism positioned between the frame and the rotor of the machine which acts on the rotor to pivot the rotor around its hinge pin. With this arrangement, a partial load transfer from the front wheels onto the rear wheels or wheels can be obtained and the agricultural machine can adapt to the unevenness of the ground as well as clear all obstacles.
Abstract:
A system for mounting and supporting cotton harvesting units for vertical displacement on a forward end of a cotton harvester frame. The mounting and supporting system includes a parallelogram-type linkage assembly for connecting the harvesting units to the frame such that the harvesting units maintain a generally level attitude in either lowered or raised positions. The linkage assembly includes vertically spaced and generally parallel lift arms and tension arms. Each lift arm and tension arm is pivotally attached at its rear end to the frame and at its forward end to the harvesting units. A tilting mechanism connects the rear end of the tension arms to the frame and is operable to move the harvesting units about their pivot attachment to the lift arm to a tilted position and thereby facilitate an increase in ground clearance for the cotton harvester.
Abstract:
A powereed riding tractor lawn mower suited to uneven terrain has four fluid motor powered driven wheels and includes a frame comprising front and rear frame sections connected for pivoting about a first axis between the sections and normal to the ground plane. The rear frame section is in turn made up of forward and rearward portions, the rearward portion of which pivots about a second axis which intersects and is perpendicular to the first axis enabling the rear wheels to pivot about both axis. Sterring is accomplished by a steering mechanism which changes the angular relation of the frame sections.
Abstract:
A gang mower having a main frame and a number of individual mower units connected to the main frame. Each mower unit has a pulley driven by a drive belt which extends to a pulley on the main frame, to drive the mower unit reel. A telescopic arm is rigidly connected to the mower unit, extends between the flights of the belts, and is pivotally connected to the main frame between the pulleys. A support strut extends from the telescopic arm to the outer end of the mower unit frame to help align the mower unit. A rear support arm extends laterally from the rear of the mower unit to the main frame to guide the rear end of the mower unit while allowing it to rise and fall. A bias spring exerts downward pressure on the rear support arm to counteract the lifting torque of the drive belt, thereby ensuring that the mower unit will cut at the same height at each of its sides.