Abstract: An orthopaedic trolley for leg support to allow mobility in cases of injury or disablement of the foot or ankle comprising a support structure 18 slidably mounted in a sleeve 26 having legs 20 splayed outwardly therefrom. The legs 20 are mounted on castors 24 or rotatable wheels. A cradle 14 is provided having a foam filled 16 inner portion and extending therefrom a maneuvering handle 22.

Abstract: A gardening glove which snugly fits on the hand with each finger and thumb stall including rigid cup-like or claw-like projections generally configured to simulate long fingernails which project beyond the tip ends of the finger and thumb stalls for effectively digging in the soil around desired plants in order to remove undesirable weeds and the like and to aerate the soil. The hard, rigid projections are attachable to the exterior surface of the finger and thumb stalls in a manner to enable removal thereof when desired so that the glove can be used in a conventional manner and laundered if desired with each projection being mounted on a sleeve-like member telescoped over the finger or thumb stall with "Velcro" fastening arrangements or equivalent fastening arrangements being used to detachably secure the sleeve-like member to the finger and thumb stalls.

Abstract: An adjustable length strut 24 for laterally supporting each lower steering arm 12, 14 of a three point linkage on an agricultural tractor comprises a sleeve 26 within which a shaft is telescopically slidable, the two parts being biased inwardly towards one another by a tension spring 40. The shaft 28 is provided with axially spaced through bores 52, 54, 56 each alignable with a corresponding through bore 58, 60 or 62 in the sleeve 26. The longitudinal axes of each alignable set of bores extends at different angles of inclination to one another whereby a locking pin 64 may only be insertable through one specific set of aligned bores.

Abstract: A tillage implement is provided which is of the type that has a plurality of working components that perform a multiple number of different soil treatment operations during a single trip across an agricultural field. One of these working components is a deep tillage component having a high draft requirement. The depth of operation of this deep tillage component is controlled independently of the depth of the other working components which are not significantly disrupted when the depth of operation of the deep tillage component is modified, which modification can be easily and quickly made.

Abstract: A gardening tool adapted to serve as a weeding hoe and a furrowing tool comprised of an elongated handle attached to a head part. The head part is five sided and is formed from flat material of generally uniform thickness having top and bottom surfaces angled downwardly from a central longitudinal rib. Two of the sides are shaped as a forwardly pointing "V" and have approximately three concave arcuate notches along the edges thereof. The "V" shaped portion merges into generally parallel sides with a perpendicular connecting rear side. The sides of the head are beveled and sharpened toward the bottom surface. The handle extends upwardly and rearwardly from a midportion of the head.

Abstract: A blade assembly for cutting herbaceous terrestrial vegetation at a cutting speed of from about 1,000 to about 10,000 revolutions per minute, wherein said blade assembly is comprised of a U-shaped blade which has a Rockwell C hardness of from about 37 to 40, a flare resistance of less than about 15 degrees, and a bending resistance of less than about 5 degrees, and wherein said U-shaped blade is an integral, symmetrical member comprised a vertically-extending left cutting edge, a vertically extending right cutting edge, and a rotating support member connected to said left and right cutting edges, wherein:(a) said left cutting edge, said right cutting edge, and said rotating support member are integrally formed into a substantial U-shaped structure,(b) each of said left cutting and right cutting edges forms an angle with said rotating support member of from about 90 to about 95 degrees,(c) said U-shaped blade is from about 2.0 to about 15.0 inches long, from about 1.0 to about 3.

Abstract: A method for cultivating plantable soils, more particularly forest soils, by breaking-up and working-in plants and parts of plants lying upon the soil, for example leaves, needles, twigs and branches. To this end, a plurality of elements, flexible in all directions, tautened by centrifugal force, and secured to a shaft, are caused to rotate by the said shaft, the radius of rotation of the ends of the said elements being greater than the selected distance between the axis of rotation of the shaft and the surface of the ground. In order to be able to mechanically cultivate larger areas of substantially uneven and non-homogeneous forest soils, the horizontal axis of rotation of the shaft is also subjected to an oscillating pivoting motion about a vertical axis, the axis of rotation of the shaft being kept substantially radial to the pivot-axis and being moved in a circle which is parallel to the surface of the ground.

Abstract: A sway limiting apparatus for a tractor hitch assembly including draft links which are vertically movable between a lower operative position and an upper transport position. The sway limiting apparatus includes a telescopic linkage assembly whose operative effectiveness in limiting lateral sway of the hitch assembly is controlled by a cam defining a cam profile. The cam profile and the linkage assembly cooperate to normally control lateral sway of the hitch assembly as a function of the vertical position of a draft link relative to the horizontal.

Abstract: A lightweight, one piece throwing toy is disclosed which, when thrown, provides a unique pattern of flight. The toy is provided with a pair of wing sections joined together by a throwing section. Each wing section is constructed to be of similar length and cross-sectional dimensions. The cross section of each wing section is of greater width than depth. The grasping section is of a different and preferably smaller cross section than the wing sections, and is of a shorter length than either of the wing sections. The toy is thrown so that it remains parallel to the ground and rotates as it leaves a person's hand. The tumbling motions enable the toy to circle, lift or drop as it flies through the air, thereby permitting use either individually or with a partner.

Abstract: A toy cog wheel railway is provided having a track with smooth driving faces and a center cogging member with two opposed vertically extending racks thereon. The associated train has an engine with a driven chassis and further cars with undriven running chassis. The chassis contain wheels with smooth faces to run on the driving faces of the track. The undersides of the chassis are provided with opposed guide members that contact the opposed sides of the cogging member. The driven chassis is provided with a motor whose drive axis is vertical with respect to the driving faces of the track and is offset with respect to the center line between the guide members so that a cogwheel attached to the drive axle engages only one of the racks.

Abstract: A weight transfer linkage arrangement for connection between the three-point hitch of a tractor, a tool bar carrying agricultural implements and a hitch. The linkage arrangement includes a first parallel linkage connecting the tool bar and the hitch and a second parallel linkage connecting the three-point hitch of the tractor and the tool bar. The first and second linkages are both adaptable to be moved between corresponding cooperative lowered and raised positions, such that the tool bar may be raised and lowered without raising and lowering the hitch. Force applying means are connected to the first linkage to apply downpressure on the tool bar when the linkage arrangement is in a lowered position.

Abstract: A scraper device for clearing earth and other materials accumulated on ground working elements, such as discs of a plough. The scraper device is suspended from the frame and is free to swing toward the ground working element. When a layer of earth or other material has accumulated on the element, a blade on the device will engage the layer and bite into it, thereby removing the layer as rotation of the element continues. After the layer has been removed, the blade swings away from the element.

Abstract: A modular landscaping system variable in size and configuration usable when making shrubbery and flower beds for masking ground surface surrounding bed plants, for permitting watering of the plants from a single location, and for enhancing the aesthetic characteristics of ground surfaces in the beds. The system comprises a plurality of interlocking plastic plates, each having one or more plant holes through which plants may extend. Each plant hole is surrounded by a flared collar which collars a plant's stalk several inches above ground level. The collar is designed to be adjustable in size for use with differently sized plants. Each plate has a raised rim along the portions of its periphery which are not interlockable with other plates. In the assembled system, the rims of the plates collectively form a liquid retaining barrier which, in combination with the number of small seepage holes passing through each plate near the plant holes, allows the plants within the system to be watered from one location.

Abstract: An attachment for a lawn roller which includes an elongated sheet of flexible material for covering the outer cylindrical surface of the lawn roller that the ends of the sheet abut. The ends of the sheet are provided with complementary connectors to enable the sheet to be removably attached to the roller. The sheet is provided with a plurality of rigid pins which project from the outer face of the sheet when it is applied to the roller or penetrating the top soil of a lawn or garden as the roller is rolled along the surface of the soil.

Abstract: A tool for grasping the stem of a woody shrub or small tree and uprooting same comprises an elongated lever arm pivotally attached at two points at its lower end to a lifting assembly having stem-gripping jaws. The lifting assembly includes a lifter arm having a fulcrum means mounted at one end and a fixed jaw face mounted at the other, and a movable jaw that slides parallel to said lifter arm, having a jaw face that opposes said fixed jaw face and moves in parallel relation to it. Dual leverage ratios are attained by the length of the lever arm, the length of the lifter arm, and the distance between said two pivot points, enabling the jaws to grip a woody stem with a force that increases at a greater rate than the lifting force as the operator pulls said lever arm to uproot said shrub or tree.

Abstract: A ground-working tool for attachment to the foot of the wearer includes a base plate for attachment against the underside of a wearer's shoe and a pair of ground-working hoe blades rigidly supported beneath the base plate. The hoe blades are generally flat in shape and are arranged in a common plane with one of the hoe blades being positioned beneath a forward portion of a base plate and the other hoe blade being positioned beneath a rearward portion of a base plate. Further, each hoe blade defines a forwardly-directed cutting edge and a reawardly-directed cutting edge which are parallel to one another and which extend transversely of the the base plate. When the tool is moved by the wearer's foot in a fore-and-aft scuffing action, soil loosened by the cutting edges is permitted to pass across the blades through the space defined between each blade and the base plate.

Abstract: A hose positioning and tensioning assembly for a vehicle having a transverse scraper blade supported on the forward end of the vehicle for relative movement. A plurality of hydraulic fluid lines extend from the lower forward end of the vehicle to the rear of the blade in an arch. The hose positioning and tensioning assembly holds the fluid line arch in an upright position and maintains a tension on the arch during any movement of the blade relative to the vehicle. Further, the hose positioning and tensioning assembly permits the blade to be moved without interfering with or twisting the hydraulic fluid lines.

Abstract: A surgical accessory for imposing a controlled and appropriate stress to a surgical joint during arthroscopic surgery. The device is comprised of a substantially inelastic composition defining a sling adapted to be positioned about a selected location of the limb displaced from the joint on which surgery is to be conducted. A transverse handle is secured to the sling and enables the sling to be hand held and carefully manipulated to impose the required stress from the limb location to the joint. The device can be advantageously utilized during arthroscopic surgery of the knee joint. In one embodiment the sling is slit to embrace the ankle with the heel protruding through the slit. In a second embodiment, the sling is comprised of two juxtaposed sections at least one of which is adjustable. Forces provided to the handle by the holder of the device are transmitted from the handle to the sling for appropriate positioning of the ankle whereby proper stressing of the knee joint is achieved.

Abstract: A hand propelled soil cultivation tool for accepting several different cultivation implements is described which includes a forward gauge wheel and a quick adjustment means for handle length. The different tool attachments described include a hoe implement, a cultivation tine implement and a trenching implement. The hoe implement has a "V" shaped light gauge blade construction which is rigidified and locked to the implement shank by opposed blade stabilizer brackets. The cultivation tine implement is formed of a single elongated piece of metal and the trenching implement is constructed of two diametrically opposed sections.

Abstract: A plurality of sand fighter rotor units are attached to a folding tool bar upon a tractor. Each rotor unit operates in a furrow between rows of growing crops on top of the beds. Each rotor has four spiders with two distal spiders working on the side of the bed and two medial spiders working near the bottom of the furrow. The prongs of the medial spiders are longer than the prongs of the distal spiders. The prongs of the spiders are arranged to dig less than two divots per square foot.