Abstract: A mobile lawn mower is designed multi-part in that the four-wheel carriage housing is provided with a center opening for lockable accommodation of a self-acting so-called grass trimmer, such design permitting operation of the lawn mower as such or the use of the grass trimmer by itself.

Abstract: The four-wheel lawn tractor has a rear mounted detachable grass catcher bag to collect the grass clippings conveyed by a discharge conduit emerging and extending upwardly from the worm type mower housing. The discharge conduit is left open at the bottom side whereby its length, slope and turn and also the blower capacity are designed according to flow codes that will permit grass clippings to be conveyed uninterruptedly and turbulence-free through to the outlet end of the discharge conduit. The outlet end of the discharge conduit is disposed below a swivel shaft of a catcher hood covering the top of a catcher bag in its horizontal swivel position. If the catcher bag is removed, the catcher hood may be swung in a vertical hanging position transverse to the outlet end of the discharge conduit permitting a mulching operation of the lawn tractor in which the clippings drop down on the lawn surface.

Abstract: A clearing blade, as an attachment for a garden tractor or the like, is constructed as a double-walled construction thereby forming a box-like spreading funnel (5) between the wall members so that simultaneously with or after clearing snow, salt or other granular material may be spread by the same implement used for the clearing. Due to the rigid box-structure of the blade a sufficient strength is obtained even by materials of lesser strength than expensive, fracture resistant steels. Hence, such materials of lesser strength, e.g., synthetic materials, may be used for manufacturing the present blade by an injection molding or die-casting method.

Abstract: Lawn clippings are pelletized and distributed back onto the lawn directly, for example, as part of a mowing operation. For this purpose the lawn clippings are supplied into the top of a chamber wherein compression rollers press the clippings through a stationary apertured plate for extruding the clippings in the form of compressed strands. A rotating distribution disk is arranged below the plate for breaking up the strands into pellets and for throwing or distributing the pellets over the lawn as it is being mowed. The pressure applied to the grass clippings is adjusted to be sufficient for the extrusion, but insufficient for squeezing the natural juices out of the grass clippings. To avoid clogging and positive extrusion at all times during the operation, the compression rollers are preferably driven positively by a double drive system for rotation about a vertical and horizontal axis.