Abstract: A snow sweeper roller is mountable on a streetcleaning vehicle so that it is suspended and is vertically swingable and rotatable about a horizontal longitudinal shaft capable of being set oblique to the lengthwise direction of the vehicle on its under side. To avoid damage to a curb-end bearing of the sweeper roller, the bearing is provided with a guard on the outside of which has a forward cone converging towards the axis of the bearing shaft. The guard is mounted centrically rotatable on a cover of the bearing of the sweeper roller.

Abstract: A snowplow whose blade is joined means of at least two links disposed one over the other to an implement plate which can be fastened to a vehicle plate of a working vehicle has a system which assures the proper operation of the blade even when it passes over obstacles. This system permits an upper and lower link to be raised over obstacles and to tilt the links due to the fact that the upper link or links are made so as to be able to elongate against the action of a spring force.

Abstract: In a rotary snow plow, especially one with a high plowing capacity, with two driven feeding mechanisms (7), which are disposed on either side of the centrifugal wheel (2) and, in the direction of plowing (F), ahead of the centrifugal wheel housing (1), and which rotate in opposite directions about vertical axes and the outside of which in each case is covered totally or partly by a flashing (8), which surrounds the feeding mechanism (7) tightly, the feeding mechanism (7), for the purpose of increasing the plowing performance while using energy sparingly, comprises essentially a cage-like rotor with throwing blades (4) disposed along surface lines and distributed over the circumference, the throwing blades (14), which rotate about vertical axes, also being driven and moreover in a direction opposite to the respective rotation of the feeding mechanism (7).

Abstract: In an apparatus for picking up dog excrement in conjuction with a street sweeper, which picks up by suction over a suction duct, a separating container for the dog excrement picked up is connected ahead of the dirt container of the street sweeper, the two containers being joined to each other over a suction line. By these means, contamination of the sweeper is avoided.

Abstract: A snow-sweeping roller for replaceable attachment to a utility road vehicle (1) having brush-equipped roller (4) rotatably affixed at the underside of the vehicle. To achieve low-wear operation of the sweeper roller (4) and simultaneously low energy consumption, a control device is provided for adjusting and changing roller rpm in accordance with the following factors:(a) The circumferential speed (w) of the roller changes in proportion to vehicle speed (f);(b) The circumferential speed (w) of the roller has a ratio to the vehicle speed (f) that ranges from unity to two; and(c) A minimum value of the circumferential speed (w-min) of the roller is established for when the vehicle is moving slowly or is stationary.

Abstract: In a rotary snow plough having a feed plough arranged on a side of its housing (2) in order to increase the intake cross section, the accumulation of snow on the ploughshare (8) of the feed plough (4) is avoided by providing, in the ploughshare (8), a belt conveyor element (11) supplying the rotary element(s) of the rotary plough.

Abstract: A mower especially suited for mowing fields at airports has a plurality of blades connected to a rotatable shaft and includes a fixed bed knife arranged parallel to the rotatable shaft and inclined at 20 to 60 degrees relative to a horizontal plane passing through the shaft rotating axis, the bed knife having a toothed profile of a shape complementary to the shape of the outer end portions of the chopping blades with which the toothed profiles are adapted to intermesh during rotation of the chopping blades relative to the fixed bed knife.

Abstract: With a drive system upon a carrier vehicle for various front or rear machine attachments for landscape maintenance in summer as well as for winter service, the carrier vehicle 1 possesses, for the powering of high performance machine units, in addition to the vehicle motor an auxiliary motor 2, which is fitted with a universal joint drive shaft 10 located under the floor for the powering of front-attached snow removal machines. The vehicle motor features at least one front power takeoff shaft 5, which is designed for the summer operation of a front mowing unit 23. The auxiliary motor 2 has in addition a rear-located universal joint drive shaft 6 for the operation of a rear-attached mowing apparatus 11 of wide cut, which comprises several separate mowing units.

Abstract: A snowblower for use particularly with wet and heavy snow formed by a precutting device (8) which rotates about the axis of a blower wheel (4) and is situated in front of the blower wheel in the snow clearing direction. Also included are worm gears (2,3) which rotate about vertical axes and are disposed on both sides in front of the blower wheel (4). The precutting device (8) has radial cutting arms (9) with radii corresponding to the radius of the blower wheel (4). The rotational bodies formed by the precutting device and the worm gears interact with one another without contact.

Abstract: A mechanical sweeper attached to a carrier vehicle comprises a sweeping assembly (2) which is attached laterally to the frame of a carrier vehicle (1) between the front and rear wheels. The sweeping assembly is attached as one unit to a carrier frame (26) which is movably connected to the vehicle in order to shift the sweeping assembly (2) into a position outside the lateral profile outline of the vehicle (1). In the case of a mechanical sweeper having an interchangeable body (6), which, on a body frame (8), includes devices for picking up and storing the dirt and is arranged as a whole above the rear wheels (4) of the carrier vehicle (1), the carrier frame (26) is fastened to the body frame (8) of the interchangeable body (6) so that it can be pulled out laterally.

Abstract: A vacuum cleaner intake device formed of a V-shaped housing widening in the direction of working. The housing has a funnel shape nozzle, a fitting at the apex of the nozzle for connection to a source of suction and a pair of arms extending in a V-shape respectively forwardly and laterally of the nozzle. A pair of side walls are provided each having a skid at its lower edge elevating said housing above the floor. A hood covers and defines with the arms and the side walls a collection chamber open at the forward and rear edges. Each of the arms are provided on their bottom surface with a pair of spaced battens defining between them an elongated suction groove open to the collection chamber and extending outwardly through the side wall.

Abstract: Snow removal apparatus has a housing open at its front end in which a central fan blower is mounted. Mounted to the housing forwardly of and flanking the central fan are a pair of vertically rotating clearing screws. Each of the screws is also provided with a deflector which is movable in a circular path concentric with the axis of rotation so as to provide a selectively positionable backing or rear wall therefor.

Abstract: A foliage trimmer having a housing connected to a source of suction, a fly cutter rotatably mounted therein, and a bar cutter mounted along the lower leading edge of the housing. The fly cutter and the bar cutter are driven simultaneously by drive means mounted on the housing.

Abstract: A snow plow having a blade movable by a plurality of drive devices actuated by switch members is controllable by a stick shift having a hand grip at one end and contacts at the other end for engagement with the switch members. The stick shift is pivotal from a neutral position in a selected one of a plurality of paths into engagement with the switch members, and includes in combination with its hand grip two additional switches for controlling at least one additional operation of said blade independently of the position of the stick shift.

Abstract: A snow removal unit having a housing open at its front end in which a central fan blower is mounted. Mounted to the housing forwardly of and flanking the central fan are a pair of vertically rotating clearing screws. The clearing screws are mounted so as to be swingable relatively to the housing, about a vertical axis independently of each other. Each of the screws is also provided with a rear deflector plate which is also swingable about a vertical axis together with or independently of the associated clearing screw.

Abstract: A centrifugal snow blower having a frame, a fan rotatable about a central axis supported on the frame and a housing surrounding said fan having a peripheral wall defining at least an opening in direction of clearing and a duct extending tangentially for the ejection of snow. The housing is supported for rotative adjustment about the central axis by a central bearing journaling the housing to said frame, an annular guide member secured to the housing concentric with the central axis and at least one releasable braking device supported on the frame for cooperation with the guide member to fix said housing in selective rotative positions.

Abstract: In a centrifugal snow blower, a plurality of shovel-like blades are fixed on a shaft for rotation about its central axis. A ring or annular band is arranged concentrically about the central axis and is secured to the frontal cutting edges of each of the blades.

Abstract: A safety gear transmission having a plurality of forward gears and a single reverse gear is provided with preselection control means for operation of the reverse gear by means of which the reverse gear is automatically actuated in response to a given stimulus for a sufficient time to assure that the vehicle, or at least the snow clearing unit moves free of the obstacle. The control means may operate either on sensing the presence of a dangerous obstacle itself, or on the changing directional state of the snow unit occurring as a result of the vehicle driving into such an obstacle, or in response to the manual operation of a manual control member.