Abstract: A mower cutting unit is provided with a rear-mounted grass catcher. The cutting unit includes front and rear rollers and mounted between the rear roller and the grass catcher is a rotary brush. The brush is mounted for adjustment into and away from engagement with the rear roller and for adjustment into and away from engagement with the turf. The brush may be driven either in the same direction as or counter to the direction of rotation of the rear roller during forward mowing operation. When driven counter to the direction as the rear roller, the brush may either be positioned for only cleaning clippings from the rear roller and depositing them into the grass catcher or be positioned for additionally sweeping the turf.

Abstract: A motorized lawn mowing machine has a generally horizontal deck with an engine releasably mounted thereon. A vertical drive shaft driven by the engine protrudes through an opening in the deck to mount a grass cutter blade thereon below the deck. A releasably mounted adaptor plate is mounted on the deck between the engine and deck, the plate having an opening for passing the shaft and having radially extending extension arm mechanism with parallel arms projecting radially at a sidewisely forward angle. The plate houses a first pulley fixed to rotate with the shaft at the level of the arms. The arm mechanism slideably supports a vertical flail assembly having an upper second pulley in alignment with the first pulley. An endless belt drive member is trained around the pulleys, and manipulatable mechanism is connected to slide the vertical flail device on the arm mechanism to engage and tauten the endless member to rotate the flail assembly.

Abstract: A cost- and labor-effective, efficient, safe, and easy-to-use lawn care apparatus is provided. The apparatus can not only cut grass as known in the art but can also be used to dispense liquid either behind its cutting path or by a manually directed wand. A tank agitation feature period continuous intermixing of the tank.

Abstract: A motor-powered mulching mower and edger apparatus (20) with dual rotary mower blades (33,35), a mower deck (21) and a side-mounted edger attachment (75) adapted by a clutch mechanism (110,111) for simultaneous operation therewith. An adjustable mulching control valve (60) mounted at the inlet of a discharge chute (39) from the deck (21) allows variation of the proportions of mulching to clippings bagging in the range of zero to one hundred percent during mower operation. The dual rotary blades (33,35) are mounted in vertically spaced relation and select leading-angle trailing-angle relationship and are cooperable with an internal deck-mounted air stream deflector (68) for deflecting multiple cuttings of grass clippings in an inwardly directed spiral path such that after the initial cutting, each of the clippings is disposed to at least two more cuttings to produce a finer mulch.

Abstract: A combination mower/trimmer apparatus comprises a mower with a body, a driven horizontally oriented blade member, and a trimmer assembly. The trimmer assembly includes a pair of spools for dispensing flexible trimming lines, guides for directing the lines along the blade member, an activating assembly for extending and retracting the trimming lines, and a line for feeding assembly to supply additional line during use. The apparatus includes a pair of pivotally mounted guards which normally seek an elevated position but which assume a lowered position when the respective guard is urged against an obstacle whereby a generally horizontal elongate slot in that guard aligns with a similar slot in the mower body such that extended trimming lines simultaneously trim vegetation along the obstacle as the blade member mows the vegetation adjacent thereto.

Abstract: A power lawn mower is provided with a trimmer attachment pivotally attached to the mower deck and positioned adjacent a side edge of the deck to trim those areas not accessible to the mower blade. When a fixed obstacle such as a fencepost or tree is encountered, the attachment is rotated on a pivotal support arm against the force of a spring to a position adjacent the rear edge of the mower deck. When the obstacle has been passed, the force of the spring returns the trimmer to the side edge of the mower deck. The trimmer attachment is operated by a drive belt driven from the lawn mower engine and the trimmer attachment support arm includes a pair of overlapping telescoping members and a spring contained in one of the telescoping members to apply an outward force on the other telescoping member resulting in a positive tension being applied to the drive belt. The trimmer attachment may be retracted to the rear edge of the mower deck by operation of a lever mechanism and a link attached to the support arm.

Abstract: A safety system for a lawn mower having an engine, a propelling transmission line for transmitting drive from the engine to drive wheels, and a PTO transmission line for transmitting drive from the engine to a grass cutting unit. An engine start is allowed when the propelling transmission line is inoperative. The engine is stopped when the propelling transmission line is operative and a driver is in a non-driving state. A steering section includes an arch-like steering handle, and an auxiliary handle having a shape substantially corresponding to the steering handle and pivotable from an upper position projecting above the steering handle and a lower position depressed below the steering handle. The driver is determined to be in the driving state when the auxiliary handle is in an intermediate position adjacent the steering handle.

Abstract: A multiblade mulching rotary lawn mower. A multiblade mower has a removably affixed mulching housing coupled to the mower deck top wall and is overlying an associated cutting blade. Mulching operation can be carried out without closing any discharge port, and the mower can readily be changed between mulching and nonmulching operation by removal of the mulching housings.

Abstract: An attachment arranged for mounting to an associated lawnmower in an operative relationship to include a snowblower housing operative through a plurality of inter-related belts and pulleys to effect rotation of a plurality of impeller blades mounted within the snowblower housing. A drive pulley is mounted to a lower terminal end of the lawnmower motor output shaft to operatively effect the aforenoted rotation of the impeller structure. A modification of the invention includes a granular hopper in operative association with an exit opening and conduit of the lawnmower apparatus to effect projection of the granular material in association with the exiting snow.

Abstract: A riding mower includes a frame, front steering wheel, two rear wheels and two mower blade housings located laterally relative to the frame with blades located within the housings. Telescoping drive shafts extend generally longitudinally from a belt drive mechanism located at a rearward end of the frame to the blade housings to drive each of the blades within the housings. Hydraulic cylinder assemblies and a leveling system are provided to pivot the frame with respect to the rear wheels and about a longitudinal axis in response to changes in slope of the surrounding terrain, maintaining the frame in a generally upright orientation. The telescoping drive shafts extend and retract in response to the angular movement of the frame with respect to the blade housings that remain close to the ground surface.

Abstract: A two blade mower deck for lawn and garden tractors having a continuous height adjustment feature. The mower deck includes a primary cutting blade and a smaller diameter secondary cutting blade. The secondary cutting blade is positioned to the side and slightly to the rear of the primary blade so that the cutting swaths of the blades overlap when the tractor moves forward. A continuous roller across the rear end of the mower deck follows the ground contour to prevent scalping or uneven cutting. The vertical position of the roller relative to the mower deck housing can be continuously adjusted by a crank handle to permit continuous adjustment of the cutting height.

Abstract: The present disclosure is directed to a mower blade-weed cutting flail assembly wherein the mower blade and the flail cutting line (cord) always rotate in opposite directions with the cutting line always rotating faster than the mower blade so that the two never meet, viz., the mower blade cannot cut the line and the line cannot damage the blade. Attached to the upper interior portion of the mower deck adjacent one end portion thereof is the upper flange portion of the return spring and support whose bottom end supports the bottom portion of the main flail housing at a position near the flail main housing stub shaft extension arm. This secondary return spring and support supports the flail main housing (for the cord trimming unit), keeps the driven disc of the line cutter away from the mower disc drive unless and until the operating handle is engaged.

Abstract: The present invention provides a mulching attachment for converting vegetation to mulch. The arrangement includes a base plate, mulching members being adapted to be mounted or attached to the upper surface of the base plate. The arrangement further includes a feed hopper which is attached to the base plate and which is adapted to receive vegetable matter to be converted to mulch. The feed hopper includes at least one feed inlet and an elongate base and feed passage. The feed hopper base is inclined downwardly at an angle relative to ground surface. The feed passage is so formed and mounted relative to the base plate that on operation of mulching members a vibratory moment is imparted therefrom to the feed hopper.

Abstract: A lawn mower includes a cutter blade rotatably disposed in a cutter housing, for cutting grass, a discharge fan rotatably disposed in the cutter housing upwardly of the cutter blade, for discharging grass clippings cut off by the cutter blade, a power source disposed outside of the cutter housing, and a speed reducer mechanism disposed outside of the cutter housing upwardly of the discharge fan, for transmitting mechanical power from the power source at a reduced speed to the discharge fan to rotate the discharge fan at a speed lower than the speed at which the cutter blade rotates. The cutter blade comprises a flat member and lies substantially horizontally.

Abstract: A bagger attachment for grass mowers provides a powered auger having an inlet adjacent to the mower deck discharge opening and an outlet adjacent to the upper ends of bags mounted on hoop-like supports. The auger is shaped to produce a dense column of clippings and the like which densely fill first the bag adjacent to the auger discharge and subsequently the bag remote from the auger discharge. Air entrained with the clippings is exhausted before the columns are discharged, the upper ends of the bags are open and accessible to the mower operator so that he can observe the filling thereof and also insert stones and the like. The mower deck is provided with a raised wall portion and a baffle arranged to create optimum flow of the clippings into the auger. The upper side of the auger tube is provided with a hinged cover permitting access to the auger. Such cover is shaped to resist rotation of the clippings and improve auger efficiency.

Abstract: An apparatus is provided for conversion of a gas-powered flexible line trimmer for use as a lawn edger by attachment of an extendable plate and wheel to a cylindrical trimmer boom, said plate and wheel acting as a support for maintaining position and orientation of a trimmer cutting path.

Abstract: A powereed riding tractor lawn mower suited to uneven terrain has four fluid motor powered driven wheels and includes a frame comprising front and rear frame sections connected for pivoting about a first axis between the sections and normal to the ground plane. The rear frame section is in turn made up of forward and rearward portions, the rearward portion of which pivots about a second axis which intersects and is perpendicular to the first axis enabling the rear wheels to pivot about both axis. Sterring is accomplished by a steering mechanism which changes the angular relation of the frame sections.

Abstract: The invention provides a mulching arrangement for a rotary, motor lawnmower. The attachment comprises a base plate on which a motor mower can be removably mounted. A feed hopper is provided for receiving vegetable matter to be comminuted, the feed hopper being provided with one or more feed inlets. The feed hopper includes a substantially planar base, downwardly angled relative to the ground surface and also includes a feed passage through which vegetable matter passes before entering into a cutting region of the lawnmower to be comminuted into mulch and discharged from the mower. The feed passage of the feed hopper is so formed and attached or mounted to the base plate, that on operation thereof a vibratory moment is imparted from the lawnmower to the base of the feed hopper and the feed passage.

Abstract: A unitized engine transaxle combination preferably having a variable speed transmission such as a hydrostatic or continuous variable transmission for utilization in a work vehicle, the combination including a specific arrangement of components parts inside the transaxle housing and the connection of the engine thereto to provide the engine transaxle combination unit. In the preferred embodiment, a hydrostatic pump is connected to the engine and the hydrostatic motor is positioned inside the transaxle housing on the same side thereof in relation to the left or right side of the combination. In close proximity to the hydrostatic motor, a speed reduction unit is also housed inside the transaxle housing. The other end of the transaxle housing houses a differential unit. The hydrostatic pump is driven by a cam gear mechanism which is contained within the engine housing and interconnects with the engine crankshaft and the hydrostatic pump input shaft so that the hydrostatic pump is driven thereby.

Abstract: A lawn mower and edger assembly includes a first pulley mounted to the drive shaft of the associated lawn mower to operate a series of forwardly mounted pulleys to rotatably drive an edger blade mounted laterally and forwardly relative to an associated lawn mower deck mounting the lawn mower engine. An over-center lever assembly is provided for forwardly pivoting and engaging the edging blade relative to the lawn mower drive pulley.

Abstract: A lawn and garden trimmer apparatus includes a framework with means for mounting the framework to a lawn mower body, a guide rail supported between opposed sides of the framework, a carrier bracket moveably mounted on the rail, a support arm pivotally mounted to the bracket, and a trimmer assembly mounted to the outer end of the support arm. Through a combination of rotational and linear degress of freedom, the trimmer assembly may be located at various positions and angular attitudes relative to the lawn mower body.

Abstract: A machine for mowing grass, weeds, vegetation and the like is disclosed herein. The machine is a conventional rotary type lawn mower converted to a sickle-type cutting machine which enables the user to cut vegetation around trees, fence posts, rocks, etc. In use, the blade of a conventional rotary lawn mower is removed, thus exposing the power drive shaft. A torque converter is mounted onto the power drive shaft. The torque converter is connected to a transfer block by means of an endless belt. The transfer block is designed to transfer the circular motion imposed upon it by the power drive shaft and converting this circular motion into a reciprocating movement which is used to power a reciprocating cutting blade. The cutting blades are superimposed upon each other and one of the blades is free to move with respect to the other.

Abstract: An operation device of a walker operated mower is disclosed. When a mowing lever is set to the "connection" side to start a mowing member and a little bit later, when a running operation lever is set to the "connection" side substantially simultaneously while keeping the lever position, a support member which is integral with the running operation lever pushes the back of an engagement member and a rocking tip of the engagement member strikes a projection provided to the mowing operation lever and prevents the return of the mowing operation lever while keeping contact with the projection. Accordingly, even if the mowing operation member is kept in the "connection" position, the moving operation lever retain the "connection" state. Therefore, the running operation lever can be kept in the "connection" position by one of the hands and the other portions can be operated freely by the other hand.

Abstract: An attachment for temporarily converting an electrically powered flexible cord-type lawn trimmer to a lawn edger is disclosed. The attachment comprises a body and guide assembly for mounting to the housing of the lawn trimmer. The attachment includes an edge guide and wheels mounted to the body of the attachement.

Abstract: A mulching attachment for a rotary lawn-mower has a baseplate on which the mower can be mounted. A feed hopper is in communication with the cutting region of the mower via a feed passage opening to the upper face of the baseplate. Vegetable matter is fed into the feed hopper through a feed inlet, passes through the feed passage into the cutting region, is comminuted there by the mower blades, and is discharged as mulch into the grass-catcher of the mower.

Abstract: A vertical, substantially funnel-shaped feed chute attaches to the top of the mower deck of a rotary lawn mower. The bottom opening of the feed chute corresponds with an aperture in the mower deck. The rotary mower is further adapted by reversing a double-edged cutting blade to reverse the air flow characteristics from upward to downward. Garden debris for mulching is inserted into the mouth of the feed chute and is drawn into contact with the cutting blades by gravity and by the movement of air drawn down through the feed chute by the aerodynamic wing on the cutting blade.

Abstract: A disc mower-conditioner having the disc cutterbar driven at each end thereof, the rotational power being delivered to the outboard end of the disc cutterbar by a power transfer mechanism rotated above the disc cutterbar, is disclosed wherein the drive mechanism includes a gearbox operable to receive rotational power from a power input shaft and transfer rotational power to three output shafts to operably power equally the opposing ends of the disc cutterbar and to power the rotation of the conditioning rolls positioned rearwardly thereof. The gearbox is provided with a removable lid rotatably supporting the output shaft operably associated with the power transfer mechanism to deliver rotational power to the outboard end of the disc cutterbar.

Abstract: A grass trimming attachment for a power lawn mower is provided that is mounted to extend from one side of the lawn mower and driven by the engine. The attachment can be pivoted upwardly and held against the lawn mower out of its normal operating position.

Abstract: An apparatus, in combination with a conventional electrically powered hand or rider lawn mower, which provides a detachable electrical power source for such lawn mowers and one or more auxiliary electrical hand tools. The apparatus has an electrical generator powered by a gasoline engine and a control box all of which are mounted by support elements on a rectangular shaped tubular frame. The tubular frame is attached by four or more retention clips to the protective shroud of a hand lawn mower or the rear deck of a rider lawn mower. The control box has two or more a.c. electrical outlets which can be used to feed electrical current to the lawn mower and/or auxiliary electrical hand tools such as weed eaters, blowers, hedge clippers or edgers. In an alternative mode, the apparatus can be temporarily removed from the lawn mowers for use with a Recreational Vehicle, a lighting system or outdoor pump.

Abstract: A circular edging disk is mounted on the axle assembly of a lawn mower for adjustment between a raised, stowed position and a deployed turf edging position. Adjustment of the mower with respect to the mower wheels does not affect the disposition of the edging disk relative to the turf.

Abstract: A pump and sprayer attachment for lawn movers wherein a pump is connected to the uppermost end of the engine drive or crank shaft so as to be in direct drive relationship with respect thereto. A source of liquid supply may also be mounted to the lawn mover with suitable fluid conveying conduits communicating the liquid source through the pump to fluid sprayers which are suitably connected with the fluid conveying conduits.

Abstract: A propelling drive transmission structure for a walking operator type lawn mower having vertically adjustable front and rear wheels and a main frame supporting a cutting blade housing between the front and rear wheels. The transmission structure comprises a change speed device disposed above a rear axle for changing speed of engine drive for transmission to the rear axle. The change speed device includes an output shaft operatively connected to the rear axle through a rotary shaft and bevel gears. The rotary shaft is slidable relative to the output shaft to vary spacing between the output shaft and the rear axle.

Abstract: An attachment for temporarily converting a flexible cord-type lawn trimmer to a lawn edger is disclosed. The attachment comprises a base plate for mounting to the housing of the lawn trimmer. The attachment includes an edge guide, a deflection shield, a bracket and wheels mounted to the base plate. The bracket supports a portion of the lawn trimmer housing upon securing the base plate to the lawn trimmer.

Abstract: Interchangeable lawn dethatcher means for a rotary cultivator with removably affixed cultivating tines. The lawn dethatcher means includes a first rigid member and second rigid member each removably affixed to the rotary cultivator in place of the cultivating tines, and a plurality of rigid dethatchment tines removeably affixed in helical array to the first and second rigid members in mirror image relationship, respectively, each dethatchment tine being received through the rigid members and arrestingly clamped at the midpoint of the tine and each tine having a bent portion at each of its ends disposed in the direction opposite the intended direction of tine rotation. The lawn dethatcher means are supported at their outermost points from the rotary cultivator by independently rotatable utility wheels sized to permit the ends of the dethatchment tines to extent below the point of contact of the wheels with the lawn and thereby into contact with lawn thatch.

Abstract: A dolly for receiving a line trimming apparatus and maintaining the rotating spool in the line trimming apparatus in a selected orientation with respect to the ground, in order to cut the grass at a selected height above the ground regardless of the contour of the terrain, trim the grass adjacent a structure such as a fence and edge along fixed structures such as a driveway and sidewalk. In a first preferred embodiment, a universal dolly is characterized by a split frame provided with removable front and rear legs and removable side legs for selectively receiving wheels and supporting the dolly in rolling relationship on a lawn, driveway or sidewalk. In a second preferred embodiment, an injection-molded plastic dolly is also characterized by a split frame and removable front rear and side legs to facilitate optional configurations for operation of the line trimmer in mowing, trimming and edging configurations.

Abstract: The device includes a wheel mounted frame having a detachable base plate, when used as a shredder, a small engine on the upper side of the frame and an internal blade enclosure within said frame, a small chute to limit the intake and prevent overloading from occurring, and a discharge on the internal enclosure opposite to the intake or loading chute. Two cutting blades are mounted on the motor drive shaft which extends vertically into the internal enclosure, an upper blade having a downturned outer end portion to draw air in through the air intake chute and a lower blade radially spaced from the upper blade by 90 degrees and having an upturned outer end portion to prevent material from building up upon the base plate. When used as a lawnmower, the base plate is removed and a plurality of radially extending stabilizer rods is substituted thus providing an open base so that the lowermost cutting blade can engage the grass.

Abstract: A rotary tiling device has a cutting device having a plurality of cutters each of which is mounted on a supporting member at a base end thereof in such a manner that the cutter is rotatable about a first center. The cutter has a vertical portion and a lateral portion at an end of the vertical portion and has edges on both sides of the vertical and lateral portions. The base end has an arcuated periphery about a second center. The first center is offset from the second center, so that in grass cutting operation, the arcuated periphery is positioned in a position which is further outward than its position in the soil cutting operation.

Abstract: Several embodiments of snow and leaf throwing blades designed to replace a conventional rotary lawn mower blade are disclosed. In one embodiment, a downwardly extending vertical bar member is attached to a rotary lawn mower blade and operates to discharge leaves or snow from the lawn mower. In a second embodiment, the downwardly extending vertical blade is curvilinearly shaped to more efficiently discharge debris from the mower. In a third embodiment, the bar is particularly designed to mulch leaves and grass before discharge, and includes a plurality of downwardly extending tines or rods to effect the combined mulching and discharge operation.

Abstract: A rotary lawnmower has an edger/trimmer including a freely rotatable disk disposed with a vacuum zone of the mower when in an edging position. In a retracted position, the edger is withdrawn fully inboard of the outer periphery of the mover housing such that no projections are left to interfere with close-in mowing. Guards are provided for the edging disk when in a stowed position, and in an edging position. An alternate embodiment provides for lifting the edger over obstruction when the edger is used on a riding mower. A trim position for trimming around foundations and the like is provided, together with methods of edging.

Abstract: An edging attachment for motor mower comprising a plate that is bolted to the mower housing, the plate supporting a drive shaft carrying an idler pulley and a drive pulley, a drive belt interconnecting a pulley on the motor of a mower to either the idler pulley, means to selectively engage either the idler or drive pulley and an edging means operating in a plane substantially perpendicular to the cutting plane of the mower. The edging means is supported by the plate via a boom and is driven by the drive shaft via a flexible spindle drive. The boom allows adjustment of the cutting angle of edging means. The position of the drive shaft and pulleys is also adjustable relative to the motor of the mower.

Abstract: A plug pusher, mounted to a mower of the type having a lift frame, pushes turf core plugs from an aerated turf surface. The plug pusher includes two L-shaped, elongate pusher elements, each having a horizontal first leg and a vertical second leg, mounted to the vehicle for being raised and lowered by the lift frame. The first leg of each pusher element extends forwardly from the second leg and lies on the turf surface so as the vehicle moves the core plugs gather in front of the second leg and on top of the first leg. The pusher elements are configured and are mounted to the mower to permit limited movement relative to the mower and each other to accommodate uneven surfaces.

Abstract: An attachment for temporarily converting a flexible cord-type lawn trimmer to a lawn edger is disclosed. The attachment comprises a base plate for mounting to the housing of the lawn trimmer. The attachment includes an edge guide, a deflection shield, a bracket and wheels mounted to the base plate. The bracket supports a portion of the lawn trimmer housing upon securing the base plate to the lawn trimmer.

Abstract: A rotary lawn mower attachment facilitating distribution and collection of leaves including a deflector device mounted in fixed position relative to the deck, the deflector including a flexible barrier surrounding the mower outside the annular wall enclosing the cutter blade and extending continuously from the surface of the ground to an elevation above the deck to define a leaf-collecting space intermediate the deflector and annular wall.

Abstract: An apparatus for use in lawn and garden maintenance, in which a chassis having a pair of axially aligned and independently operable drive wheels carries a grass trimmer comprising an articulated arm pivotably mounted at one end on the chassis, a trimming device mounted on that end of the arm remote from the chassis, gripping means mounted on the arm for manual manipulation thereof, and means mounted on the chassis to actuate the trimming device, the arm comprising a first variable parallelogram unit pivotably mounted on the chassis in a vertical plane and a second variable parallelogram unit pivotably mounted on that end of the first parallelogram unit in said vertical plane remote from the chassis, the trimming device being pivotably mounted on that end of the second parallelogram unit remote from the first parallelogram unit, the parallelogram units being spring biased against free movement thereof.

Abstract: Auxiliary power apparatus having particular application to motor-driven lawn and garden devices is described. The auxiliary power apparatus operates an auxiliary load from a motor power source on, for example, the lawn and garden equipment in question. A collar member is fixedly attached to the drive shaft of a rotary power source. A flexible drive shaft including a flexible driven shaft and a flexible sleeve arranged about the driven shaft is connected at one end to the mechanical load by means of a driven shaft. A second end of the driven shaft ends in a shaft extension member. The collar member is formed to receive the shaft extension member and a second locking member is arranged at the second end of the flexible sleeve for releasable engagement with a locking member on the collar. Thus, the flexible drive shaft is releasably connected to the collar which in turn is connected to the drive shaft of the power source.

Abstract: This specification discloses a cutting head and mounting assembly for adjustably supporting the cutting head on a mower. The mounting assembly for the head permits easy adjustment of the height of the head above the ground, its horizontal angle with respect to the frame of the mower, and the inclination of the head from a horizontal to a vertical orientation or any angle of inclination therebetween. At the end of the head opposite its cutting flail members, there is a quick detach joint which allows, either an electric motor to be mounted and energized through a switch by electrical power available aboard the mower, or alternatively allows a cable drive to be mounted which drives the head from a friction drive mechanism taking power from the mower engine shaft, the friction drive being selectively engageable by means of a Bowden control cable. A guard to deflect cuttings away from the operation is mounted on the cutting head.

Abstract: A trimming and edging device for grass, weeds and the like having a motor within a housing (12) supported by a support member (22) in a first position in which a cutting element (14) sweeps in a substantially horizontal plane and in a second position in which the cutting element sweeps in a substantially vertical plane to the side of a carriage (16) for the device is disclosed. In one arrangement, the support member rotates in a horizontal plane about a bolt and wing nut (20), and the motor housing rotates in a substantially vertical plane about a bolt and wing nuts (24).

Abstract: A device adapted to temporarily replace the standard cutting blade of a rotary power mower enables the thus modified power mower to function in a manner to rake debris from a lawn. The raking effect can be achieved at low rotational speed of the mower. The device is comprised of an elongated support plate which mounts upon the lower extremity of the mower's vertically disposed drive shaft, and two rake arms adjustably attachable to the extremities of the support plate to provide an overall length of the device equal to the cutting blade it replaces. The rake arms are provided with a series of resilient fingers angled away from the support plate and terminating in a line diagonal to the center longitudinal axis of said support plate.

Abstract: A power driven lawnmower of the walk-behind type has its ground support wheels all disposed behind the blade travel path and to the side walls of the lawnmower which straddle the blade, to enable the blade to be maneuvered closer to upstanding objects such as walls. The lawnmower has a gasoline powered engine and an electric generator which is driven by the engine. The generator includes an electrical outlet socket capable of receiving a multi-pronged plug of an external electrically driven implement. Vertical height adjustment of the blade is achieved by an extension of the blade shaft which extends upwardly through a sleeve. Holes in the sleeve and shaft extension are suitably aligned and affixed to provide for the height adjustment. During such adjustment, the lawnmower may be positioned atop a platform which carries a slot for receiving the blade to prevent rotation of the blade as the shaft nut is unscrewed.

Abstract: A process for the isomerization of maleic acid, its monoesters and monoamides in the presence of thiourea in anhydrous conditions at elevated temperature to the corresponding fumaryl forms yields intermediates which are useful in the synthetic pathways of aspartame and other useful polypeptides.