Abstract: A center knife drive for a sickle of a plant cutting machine having an upwardly facing cover and at least one output element reciprocatingly movable by the drive above the cover for moving a knife of the sickle in a sideward reciprocating cutting action, including at least one cleaning flap in connection with the output element positioned and configured for reciprocating forward and rearward movement thereby, disposed above the cover and configured for cleaning loose material therefrom during the movement and for pushing the loose material from the cover to accommodate upward movement of the drive within a space below or in a floor of the machine, clearing the material from the path of the output element, and improved heat dissipation.

Abstract: A cutter bar drive system for a draper header has a cutter bar disposed at a leading edge of the header to cut crop. A cutter bar gear box in operative engagement with the cutter bar is mounted on a forward portion of the header with a drive train mounted on the header to drive the gear box and cutter bar. An external flywheel is mounted along the drive train remote from the gear box and is engaged with the drive train to reduce vibration in the cutter bar and gear box from a remote, external position.

Abstract: A connection arrangement between a mowing sickle drive and a linear reciprocating mowing sickle has a first metallic connection element (4). The first connection element (4) forms either one component with the mowing sickle (1) or serves to connect the same. The first connection element (4) is at least partially formed annularly and includes a circular cylindrical bore (6), which defines a longitudinal axis (5). The first connection element (4) is slotted and includes a clamping mechanism (11) to change the cross-section of the bore (6). A metallic ring (14) has a circular cylindrical outer face (19) to nest in bore (6). A hollow spherical inner face (18) is on the intermediate ring (14). The intermediate ring (14) has at least one slot on its circumference. A rotational rolling member bearing has an outer metallic bearing ring (20) and is closed in a circumferential direction.

Abstract: Travelling device (20) particularly for self-propelled mower comprises a frame (1) provided with several identical travelling units (21) arranged on its circumference. Each travelling unit (21) comprises a flexibly suspended travelling wheel 92) rotating on its horizontal and vertical axes. A motor unit (3) with a driving shaft (13) is arranged on said frame (1) for driving a working device and said travelling wheels (2). Said travelling wheels (2) are arranged in said travelling units (21) turnably on vertical axis in an unlimited angular range of 360°.

Abstract: The compact sickle drive mechanism is adapted to incorporated into or beneath a floor or pan of a header at a location between and spaced from the sides or ends of the header, and can be configured for reciprocatingly driving two knife assemblies disposed in end to end relation, in opposite directions, such that potentially vibratory forces, including those generated by the moving masses of the knife assemblies, at least substantially cancel one another and thus are not transferred to structure of the header. As a result, the overall width of the header and structure thereof can also be reduced.

Abstract: A mount assembly for mounting a conventional trimming device on a riding mover includes an adjustable support arm mounted on the mower deck carries a biaxially pivotal bracket carrying the shaft of the trimming device whereby the operator may selectively pivot the cutter of the trimmer about a wide arcuate path during movement to trim unwanted vegetation.

Abstract: An apparatus for mowing and rolling grass comprising a lower mowing-rolling unit, a handle coupled to the mowing rolling unit and securable in two or more positions, a first of said two or more positions for performing grass mowing operations, a second of said two or more positions for performing grass rolling operations, said lower unit comprising a rear driving assembly, a front roller assembly, a grass-cutting assembly interposed between the front roller assembly and the rear driving assembly, and a drive-train gear assembly coupling the rear driving assembly to the grass-cutting assembly for rotatingly driving said grass-cutting assembly during forward movement of the apparatus, said drive-train gear assembly comprising a first drive gear, a second transducer gear, a drive shaft and a third gear secured to said first drive shaft, whereupon forward movement of the apparatus drives said first drive gear which in turn drives said second gear, said second gear in turn driving said third gear and said first dr

Abstract: A reciprocating, brush cutting attachment for a vehicle such as a riding lawn mower. The attachment is in the form of a sickle head having a bottom support plate that acts as a frame for the sickle head. Two top blades reciprocate back and forth on top of the support plate, one on each side. The bottom support plate and the two top blades all include front blade edges having a plurality of teeth. As the top blades move back and forth, vegetation between the teeth is cut. The prime advantage of the sickle head of the present invention is the reduction of vibrations achieved by continuously driving the colinear top blades in opposite directions with respect to each other.