Abstract: An apparatus for producing parallel-walled grooves in green areas and lawns. Slits which form the walls of the groove are produced by means of tools which are arranged at the periphery of a drum, or alternatively, on a rolling wheel body. Each tool comprises a pair of knives which produce the parallel slits or cuts. A cutting edge is provided, which extends between the knives and produces a transverse cut in the region of the groove. The cutting edge can simultaneously serve to eject the earth. Alternatively a clearance tyne, which also serves to lift the earth, can be arranged behind the knives in the direction of running. In accordance with a further embodiment, spring loaded runners are provided which are fixed to the frame of the apparatus and are located between knife carrying discs, i.e. between the grooves that are formed, or in the grooves that are formed, i.e. between the two knife carrying discs of a pair of knife carrying discs.

Abstract: In a lawn mower for wheel drive, two switch yokes 16 and 18, pivoted swingably below the handlebar 10, are provided as switch members for the turning on and disconnecting of the motor and the engagement and disengagement of the clutch respectively. The clutch switch yoke 18 is, in this connection, developed as an entrainment lever which holds the motor switch yoke 16 in engaged position after said yoke has been released. A safety button must be depressed before the swinging of the motor switch yoke 16. It is not possible to turn the motor on by means of the clutch switch yoke.

Abstract: A combination garden tool is disclosed. A first tool, which has a handle, and a second tool, which is secured to a coupling mechanism, are provided and are detachably coupled to each other in such a manner that both tools can be operated simultaneously. If desired, however, the second tool can be used alone while attached to the first tool. Preferably, the detachable coupling device includes a clamping bolt movable by means of eccentric supporting projections between a first and a second position to clamp the first tool is mounted to the body of the coupling device. The coupling device is preferably permanently secured to the second tool.

Abstract: A wheel for a lawn mower, or the like, is positioned on an axle. The axle has a detent groove formed in it. A chassis for the axle has two spaced apart walls with aligned sets of holes into which sets of holes the axle may be selectively inserted to adjust wheel height. A detent spring formed at one of the walls resiliently self-biases to engage in the detent groove in the axle to hold the axle in place. A cutout in that wall holds the detent spring and enables it to resiliently self-bias into the groove in the axle.

Abstract: A connector comprising a tapered socket component, a complementary tapered spigot component and a sleeve component for location between the socket component and the spigot component, the sleeve component and one of the other components being screw engageable, whereby, in use, screwing together of these components laterally deforms the sleeve component to clamp the spigot component within the socket component.

Abstract: A lawn perforating machine for forming rows of holes in the ground comprises a perforating roller which is adapted to roll on the ground and whose peripheral surface carries perforating tubes mounted for pivotal movement about axes extending parallel to the axis of the roller so that from the beginning to the end of their contact with the ground their axes remain substantially perpendicular to the ground. Part of the periphery of the roller is enclosed by a guide plate to intercept plugs of earth formed by the perforating tubes. In one embodiment a spring comb is disposed behind the roller to produce clean holes even in wet ground.

Abstract: A holder for a plurality of tools having shafts or handles; a plurality of notches, each for a handle, with each notch having two side walls and at least one of the walls being sloped, and a gripping roller resting against the sloped wall and engaging the tool shaft or handle by wedging against it.

Abstract: A wheel supported chassis has a motor driving it intermittently across a lawn or turf surface for predetermined distances between cycles, a rotary drilling means drills holes in the turf area while the apparatus is stationary, a collecting platform feeds tubular plugs from an upper elevation to a transport wheel which positions a plug carried in a tubular container over a drilled hole, a cylinder for reciprocating the drilling means also effects pushing of the plug into the drilled hole with the plug being removed from a tubular container and the cycle being repeated as the apparatus traverses a desired work area.

Abstract: A wheel supported chassis has a motor driving it intermittently across a lawn or turf surface for predetermined distances between cycles, a drilling means drills holes in the turf area while the apparatus is stationary, a collecting platform feeds tubular plugs from an upper elevation to a transport wheel which positions a plug carried in a tubular container over a drilled hole, a cylinder for reciprocating the drilling means also effects pushing of the plug into the drilled hole with the plug being removed from a tubular container and the cycle being repeated as the apparatus traverses a desired work area.

Abstract: Grass shears with one movable blade, including a crank link means for imparting simultaneous lateral and longitudinal motion to the movable blade.

Abstract: Power grass shears detachably attached to a handle: the handle includes a rod extending in the cutting plane; a connection between the shears and the rod to enable the shears to be rotated around the rod; the connection comprises various arrangements of a pin, and detent like means for enabling the shears to be held at various rotative positions.

Abstract: Cutting height adjustment device for lawn mower blades: adjustment is obtained by adjusting the height of the mower wheel axle with respect to the mower chassis; the wheel axle is carried on a crank arm which pivots about a shaft fixedly positioned with respect to the chassis; the shaft is pivotable to a plurality of angular positions; a detent disc is secured to the shaft; a latch, non-shiftable with respect to the chassis, is operable to selectively engage in and disengage from the detents, thereby to position the blades at various heights; a pointer associated with and movable with the shaft indicates blade height on a scale on the chassis.

Abstract: Strewing apparatus for distributing seed, fertilizer, etc. in a garden, including a wheel on which the apparatus moves, a strewing shaft driven by motion of the wheel, a strewing means on the strewing shaft; an interchanging proportion and distributing plate on the side of the housing of the device, which plate has holes therethrough and shaped so as to desirably proportion the exit of material from the device.

Abstract: The specification describes a mixing container for dissolving corrosive or poisonous chemicals, supplied in a sealed package, in a solvent. The container comprises a filling neck, which can be closed by a lid, for the chemicals, more particularly for the production of a plant protective spraying liquid, characterized by the following features. The filling neck is provided with a sleeve extension, directed towards the interior of the container, for receiving an as yet unopened chemical package. The sleeve extension in the interior part has an opener for the package and this opener becomes effective on pressing the package into the sleeve extension and the opener causes the content of the package to move past it into the container.