Abstract: A pair of substitute adjustable height wheel assemblies 10 10 to replace either the front 101 and/or rear 102 wheel assemblies on a conventional lawn mower 100 wherein each adjustable height wheel assembly 10 includes a contoured mounting plate member 20 having a central portion 21 adapted to be secured at a desired location on the lawn mower housing 103 and including a pair of outwardly projecting leg portions 22 23 having a plurality of vertically spaced aligned apertures 24 dimensioned to selectively receive a securing unit 12 for positioning an adjustment arm unit 13 bearing a castor wheel unit 14 at a desired height relative to the mounting plate member 20 that is selectively positioned on the lawn mower (100).

Abstract: A lawn mower comprises a cutting deck 2 mounted on at least first and second wheel assemblies. The first and second wheel assemblies comprise, respectively, first and second height adjustment mechanisms 22. The first height adjustment mechanism 22 comprises a first pivoting mechanism 22 pivotal about a first axis for adjustment of the height of the deck above the first wheel assembly. The second height adjustment 22 mechanism comprises a second pivoting mechanism 22 pivotal about a second axis, parallel to the first axis, for adjustment of the height of the deck above the second wheel assembly. A connection or bar 38 is formed between the first and second pivoting mechanisms for pivoting the first and second pivoting mechanisms in opposite directions about the first and second axis, respectively. Each of the pivoting mechanisms 22 raise the height of the deck 2 by substantially equal mounts when pivoted through any part of their full range of pivotal movement.

Abstract: A lawn mower comprising a cutting deck mounted on castor wheel assemblies wherein the deck is mounted on four castor wheel assemblies each located in the region of a corner of the cutting deck preferably with two castor wheel assemblies located towards the front of the cutting deck and two are located towards the rear of the cutting deck. One pair of castor wheel assemblies mounted on one edge of the cutting deck are located closer to each other than the other pair of castor wheel assemblies mounted on the opposite edge of the cutting deck to form a trapezium. Ideally there is at least one friction reduction mechanism in the form of either a roller or rotatable ball mounted on at least one side of the cutting deck.

Abstract: A swiveling wheel attachment for the front of a lawnmower, wherein the attachment includes a main body member having a rectangular side plate and a rectangular upper plate. The plates are formed at a right angle along a longitudinal side of each plate, so that the main body member is shaped like an upside down "L". The side plate defines a series of holes, or interconnected slots, which are used to connect the main body member to the front end of a lawnmower. The holes or slots are arranged in such a way that the height of the main body member may be adjusted relative to the lawnmower. The main body member is attached using threaded nuts and bolts. On the underside of the upper plate member, a pair of swiveling wheels are attached, so that the wheels may rotate in a 360 degree arc in a horizontal plane to facilitate maneuverability of the lawnmower.

Abstract: An improved snap-on height adjustment spacer clip is provided for height adjustment of wheeled frames including at least one ground-engageable wheel assembly. The snap-on clip includes a pair of mutually opposed, resiliently spreadable arms integrally connected at one end and disconnected at the opposite end. The clip arms are sized for embracing the spindle portion of the wheel assembly when installed, and are sized to permit the arms to yieldably flex toward and away from one another as the spindle passes transversely between the arms during installation and removal of the clip. The clip preferably includes a pair of mutually opposed, resiliently compressible hand knobs for use in clip installation and removal.

Abstract: The present invention relates to the wheel assembly of mowers, particularly to mulching mowers. In the preferred embodiment, each wheel assembly includes a clearing disc sandwiched between a pair of support wheels. The support wheels support the weight of the lawn mower. The clearing disc clears accumulated grass from the wheel assembly by moving between the support wheels as the wheels rotate to clear away grass clippings. The clearing disc has an outside diameter that is greater than the outside diameter of the support wheels and is mounted between the wheels in such a way that the clearing disc continually moves upwardly as the mower is moved.

Abstract: A pickup attachment for use on crop harvesting machines wherein the pickup attachment includes a reel with a plurality of fingers connected to and rotatable about a central shaft in a predetermined path to pick up crop material. The pickup attachment is supported at one side by a wheel and at the other side by a roller positioned underneath the pickup attachment. The wheel is arranged with its center located substantially in alignment vertically with the axis of the reel central shaft while the roller is arranged with its center located rearward of the axis of the reel central shaft. This arrangement of the wheel and the roller allows the path of the reel fingers to follow the contour of the ground in proximity thereto when the pickup attachment is operated over rough or uneven terrain.