Abstract: A carpet cleaning pad which includes a horizontal disc made of a base material, a primary layer of a blended yarn tufted to the base material by tufting, and one or more radial strips of fibrous bristles which are attached to said base material. The blended yarn is made by weaving together three or more different individual yarns including one yarn made of acrylic fibers or wool fibers.

Abstract: In accordance with the present invention, a combination apparatus is provided wherein cleaner is applied to all or a portion of the lane and the cleaner, dressing and other residue is picked up by a vacuum head trailing the cleaner applicator followed by a buffer roller to apply new dressing to the lane. If desired, the cleaning operation can be limited to the last forty-five feet or so, since it is generally desirable to clean this portion of the lane more often than the front portion. On the return or reverse movement of the stripper, no cleaning operations are undertaken but cleaner may be permitted to flow from the cleaner storage tank to the applicator so that the applicator will have sufficient cleaner in it for the beginning of application on the next lane. In an alternative embodiment, the applicator may be in the form of a spray nozzle to spray cleaner onto the lane.

Abstract: This invention relates to an automatic chalk-powder collecting device for blackboard eraser; it mainly comprises a body portion, two symmetrical side covers, a powder box, and a powder-collecting assembly. By means of the aforesaid structure and a one-way brake switch in the powder-collecting assembly, the rollers of this invention are controlled to rotate in one direction only. When the present invention is erasing a blackboard back and forth same as a conventional eraser does, the chalk powder on the rubbing cloth can be cleaned automatically and simultaneously. It is deemed that the present invention has greatly improved the drawbacks of the conventional eraser, which must be beaten or cleaned repeatedly in use to cause a lot of powder flying in the air.

Abstract: The honing apparatus comprises a dolly 1 on which is mounted an electric motor 2 and a reservoir for water 3. A flexible cable 4 emerges from the command motor and within this cable is located a flexible command cable which by means of a reducing adapter located at the end is connected with an assembly 8 and imparts rotation to the plate 6. The plate carries the operating heads 7 which provide for smoothing the plaster both on vertical walls as well as ceilings. The apparatus also provides for spraying water by means of tube 5 if this is necessary.

Abstract: A device comprising a main body and vibration generating means mounted on the main body. The vibration generating means imparts a force in a direction away from a wall surface and a force in a predetermined direction along the wall surface to the main body of the device. As a result, the main body is moved along the wall surface by the above force in the predetermined direction along the wall surface.

Abstract: An improved mopping system useful in cleaning a surface, the mopping system includes in combination a handle having a mop head at one end thereof, a container attached to the handle and holding a dispensable liquid, a valve mechanism for dispensing liquid from the container to a surface, a rotatable absorbent belt for removing liquid from the surface, a scrubber for scrubbing the surface, pressure bar for removing liquid from the absorbent belt and a reservoir associated with the rotatable absorbent belt for storing dirty liquid removed from the floor surface in a container separate from the container carrying the dispensable liquid.

Abstract: A disposable finishing article for mounting on a rotatable threaded spindle which may be used with a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article wihtout the aid of adhesives in such a manner that the finishing article is placed in compression when it is operably secured upon the spindle of the power tool under operational loads. The nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange. A generally inverted cup shaped member is carried by the spindle for engaging the outer surface of the backing flange or the finishing article during operation of the finishing article.

Abstract: In accordance with the present invention, an apparatus is provided wherein cleaner is applied to all or a portion of the lane and the cleaner, oil and other residue is picked up by a vacuum head trailing the cleaner applicator in one trip from the foul line to the pit leaving the lane clean and dry. If desired, the cleaning operation can be limited to the last forty-five feet or so, since it is generally desirable to clean this portion of the lane more often than the front portion. On the return or reverse movement of the stripper, no cleaning operations are undertaken but cleaner may be permitted to flow from the cleaner storage tank to the applicator so that the applicator will have sufficient cleaner in it for the beginning of application on the next lane. Means is provided for bowing the vacuum head so that the center is lower than the side edges so that it conforms generally to the concave shape of a bowling alley.

Abstract: A novel surface working pad assembly is described which assembly comprises a fibrous generally disc shaped pad support element having a circular raised portion at its center; the raised portion is sized and configured to fit closely within a circular aperture of a cooperating surface working pad element, but preferably remains recessed and out of contact with the work surface during use thus reducing drag and wear. The surface working pad element of the assembly is removably attached to the pad support element so that by reversing the working pad both surface may be used. The mating of the raised portion of the pad support element into the aperture of the working pad enables the working pad to be quickly; and accurately mounted on a machine and prevents unwanted displacement of the pad due to centrifugal forces, even during use in high speed rotary floor polishers or the like.

Abstract: A floor polisher, while travelling, causes a pad to rotate at a high speed to polish a floor. The floor polisher has a vertically moving mechanism adapted to move the pad in the vertical direction with respect to the floor, a ground pressure adjusting mechanism adapted to maintain a ground pressure of the pad a set pressure by controlling the vertically moving mechanism, and a floor protecting mechanism adapted to actuate the vertically moving mechanism to lift the pad immediately when the travel of the floor polisher is stopped.

Abstract: A cleaning roller rotatably driven to wipe off a liquid cleaner applied to a floor by an applying roller includes a core rotatably supportable at the opposite ends thereof and a resilient body mounted about the core and having one end inwardly spaced away from each of the opposite ends of the core, the external diameter of the resilient body progressively increasing from each of the opposite ends of the resilient body toward the central portion thereof.

Abstract: A buff adapted for self centering engagement with a backup pad comprising a circular body with a first fastener portion on its face surface. The buff includes a stiff flexible backing having a generally planar circular central portion and an annular flange only slightly larger than the diameter of the backup pad projecting from one side surface of its central portion, a second fastener portion fixed on the side surface of its central portion and adapted for engagement with the fastener portion on the backup pad, and a multiplicity of projecting tufts having central portions adhered in the backing by a thermoplastic adhesive that melts and adheres at a temperature under 100.degree. C.

Abstract: A disposable finishing article for mounting on a rotatable threaded spindle which may be used with a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the aid of adhesives in such a manner that the finishing article is placed in compression when it is operably secured upon the spindle of the power tool under operational loads. The nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange. A metallic inverted cup shaped member and a molded plastic body are carried by the spindle for engaging the outer surface of the backing flange during operation of the finishing article.

Abstract: A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the aid of the adhesives in such a manner that the finishing article is placed in compression when it is operably secured upon the spindle of the power tool under operative loads. The nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange. A pressure cap member is secured by rotation to a plurality of fingers formed on the backing flange for engaging a shoulder formed on the spindle of the power tool during operation of the finishing article.

Abstract: Apparatus for mounting a pad to a rotary floor machine includes an internally threaded drive collar mounted in coaxial relation with a drive shaft. The teeth of the thread on the collar have a sawtooth profile with an inclined lead-in surface and a holding surface. A retainer member in the form of a flanged collar has a cylindrical insert with a plurality of tabs capable of flexing inwardly. The flex tabs are spaced about the insert and have external thread segments, the teeth of which also have a sawtooth profile, for matching engagement with the internal threads of the drive collar. The retainer insert is assembled by pushing it into the drive collar. The lead-in surfaces of the matching threads cam the flex tabs inwardly during assembly so that the sawtooth threads ride over one another. The radial holding surfaces engage to provide substantial holding force for the center of the pad which is clamped between the flanges of the drive collar and the retainer member.

Abstract: A foam generator constituting or forming part of a carpet-cleaning apparatus has a foam body and a pressing element which alternately compresses and permits relaxation of the foam body to generate the foam with a cleaning liquid supplied to the foam body from the interior of the device. The foam is driven through apertures into the carpet therebelow.

Abstract: In a machine which cleans or buffs a floor by rotating a cleaning or buffing pad against the floor at high speed, simplified means are disclosed for supplying a controlled amount of cleaning fluid to the floor at the center of the cleaning pad. Vacuum which is created within the pad housing by the centrifugal action of the cleaning pad draws cleaning fluid out of a reservoir and into the central region of the pad. Flow is controlled and flow rate is set by limiting atmospheric vents. There is precisely controlled flow to the center of the pad, which may be continuous or on demand, no pump or moving parts of any kind are required, and the system is self-cleaning.

Abstract: An apparatus for removing water from the ground comprises at least one ground-engaging drum including a hollow cylinder mounted for rotation about a substantially horizontal axis, and a plurality of recesses substantially parallel to the rotational axis of the cylinder formed in the outer surface of the cylinder around the periphery thereof. A non-porous sheet of resilient material covers the outer surface of the cylinder, and a plurality of slits are cut in the covering sheet over the recesses in the cylinder. The slits are normally closed but are capable of opening under the pressure of water built up in front of the drum, as the latter is moved across the ground, to permit such water to enter the recesses in the region of ground contact.

Abstract: A portable power operated surface cleaning device comprising a handle assembly, a hollow generally cylindrical roller supported for rotation on and relative to the handle assembly, and an absorbent generally cylindrical applicator sleeve coaxially supported on said roller for rotation therewith. The roller is driven by an electrical motor contained within it and powered by a rechargeable battery also supported within the roller. Operation of the motor is controlled by a rotary electrical switch which includes a pair of magnetically responsive electrical switch contacts contained within the roller and a magnetic switch actuator mounted on the handle assembly.

Abstract: A device which has wheels is provided that has a removable disc with blades such that when the disc is placed in a certain position the device acts as a pushbroom, and when the disc is continously rotated, the device can act as a dustpan as well as a dustmop.

Abstract: A device capable of adhering to a wall surface by suction by the pressure of an ambient fluid and treating the wall surface, which comprises a pressure receiver member and a partition defining a pressure reduction zone in cooperation with the pressure receiver member and the wall surface.In one aspect, the partition has a sealing function of preventing inflow of a large amount of an outside fluid into the pressure reduction zone, and a treating function of treating the wall surface by being moved in a required manner.In another aspect, the partition has the above sealing function, and a travelling function of moving the device, by being rotated about an axis of rotation slightly inclined to an axis which is substantially perpendicular to the wall surface.

Abstract: A floor polishing machine is shown having a one piece, rotationally molded base formed from a synthetic, non conductive material. The base has a pad receiving portion integrally formed of the synthetic material for receiving a polishing pad. A motor compartment is formed in the rotationally molded base to contain an electric motor used to drive the pad. A pair of transport wheels are mounted on opposite sides of the base by a fixed axle which passes transversely through the base. A pair of height adjustment wheels are mounted to opposite sides of the base by a pivoting axle which allows the pad height to be controlled.

Abstract: A vibrating motor attached to a pole which has a plate for securing a working pad at the far end for application to a subject surface. The working pad may be sandpaper, a buffing pad, etc. The extension pole removes the vibrating sander from the vicinity of the working surface, thus eliminating the possibility of shorts or other damage to the vibrating motor where the surface is wet, dusty, etc. In the preferred embodiment, the vibration motor can rotate to be at different angles to the extension pole to allow different angles of application. The plate attached to the far end of the extension pole is similarly rotatable to fit the working surface. Both the sanding motor and the working pads may be attached to plates on the ends of the pole by virtue of a hook and loop type fastener (i.e., VELCRO).

Abstract: A drive control for a vehicle such as a floor scrubber, a floor sweeper, a pallet truck or the like, operated by a person walking or riding on a sulky behind it, includes first and second drive motors each arranged to drive a vehicle wheel. Manual means are provided whereby an operator by manipulation of a control may determine vehicle speed; forward and reverse direction; and turning right or left. A variable voltage is responsive to the operator's movements for providing an electrical signal representative of the desired speed in either the forward or reverse direction. Other movements by the operator of the control provide turning in the right or left direction. The means for detecting a turning control signal from the operator is effective to reduce the motor drive signal to the motor on the inside of the desired turn, from the level representative of the existing speed toward a no-speed level at a programmed rate.

Abstract: A device capable of adhering to a wall surface by suction by the pressure of an ambient fluid and treating the wall surface, which comprises a pressure receiver member and a partition defining a pressure reduction zone in cooperation with the pressure receiver member and the wall surface. In one aspect, the partition has a sealing function of preventing inflow of a large amount of an outside fluid into the pressure reduction zone, and a treating function of treating the wall surface by being moved in a required manner. In another aspect, the partition has the above sealing function, and a travelling function of moving the device, by being rotated about an axis of rotation slightly inclined to an axis which is substantially perpendicular to the wall surface.

Abstract: A horizontally moving automatic outer surface cleaning apparatus comprising horizontal rails provided above and below a surface to be cleaned such as a window glass and a carrier having engaging means for engaging with the horizontal rails for enabling the carrier to be guided along the rails. On the carrier, there are mounted drive means for driving the carrier to move along the horizontal rails, water spray means for spraying water over the surface to be cleaned, wiper means for cleaning the surface by wiping the surface and a soiled water tank containing soiled water collected as a result of wiping by the wiper means. In a preferred embodiment, the carrier consists of a main carrier and a work carrier coupled to the main carrier in such a manner that the carrier can move along a curved portion which can be formed in the horizontal rails.

Abstract: An apparatus for imparting a high gloss to a floor including a frame, a motor mounted on the frame, a drive pad operatively rotated by the motor, a buffing pad positioned beneath the drive pad and rotated at about 2200 RPM thereby, and an adjustable shield mounted on the frame. The drive pad is partly and centrally concave such that only a relatively small outer surface area of the drive pad is supported by and drives the buffing pad. Preferably, only about the outer 15% of radius of the drive pad includes engaging projections or the like thereon to engage the buffing pad. The shield is adjustable to allow a lower edge to be placed relatively very close to the floor to prevent the buffing pad from engaging debris, walls or the like and to reduce the amount of dust raised in the air by the polishing. The adjustability of the shield allows for variance in thickness of the buffing pad due to wear or the like.

Abstract: A pad holder release mechanism for a floor treating machine enables a pad holder to quickly be released from and reattached to a motor shaft, so that a pad carried by the holder may be replaced without need to tip the machine back on its handle. The release mechanism is particularly useful with battery powdered floor treating machines, which because of their weight cannot conveniently be tipped to expose the pad, and if tipped present a risk of battery acid spillage. In use of the mechanism, the pad holder need only be elevated a few inches to lift the pad off of a surface, whereupon the mechanism allows the pad holder and pad to be removed from and replaced on the machine.

Abstract: An improved high-speed floor treating machine is provided comprising a frame, a control and guiding handle extending rearwardly of the frame and an electric motor for rotating a floor contacting pad is secured. The improvement of this invention includes an elongated low clearance extension member secured to the frame. The vertical axis of the forward shaft may be offset from the frame longitudinal axis by angular rotation of the extension member with respect to the frame. The floor contacting pad extends radially beyond the extension member for providing ease of access to difficult treating areas. An alternative embodiment of the invention comprises a novel baseboard floor contacting pad attached to the forward shaft of a modified extension member.

Abstract: A floor polishing machine is shown having a one piece, rotationally molded base formed from a synthetic, non conductive material. The base has a pad receiving portion integrally formed of the synthetic material for receiving a polishing pad. A pair of wheels are mounted on opposite sides of the base by means of an axle which passes transversely through the base. A motor compartment is formed in the rotationally molded base to contain an electric motor used to drive the pad.

Abstract: A surface dressing machine including a housing; a motor mounted on the housing; a disc associated with the housing and being capable of rotating relative to the housing in response to the force generated by the motor, the disc including a dressing element, e.g., sandpaper, adapted to contact the surface to provide the desired dressing to the surface; and a bearing press fitted into the housing and the disc, and acting to facilitate the rotation of the disc relative to the housing.

Abstract: A novel padholder for a floor polishing or burnishing apparatus having a rotating drive shaft and a circular polishing or burnishing pad which includes planar, resilient arms radiating from a center point, spring means for each arm extending from the center point along each arm in order to urge the arm toward the floor, means to detachably connect the circular pad to the padholder, and means to connecting the rotating drive shaft to the padholder at the center point.

Abstract: A high speed floor burnishing machine in which fine particles generated by the burnishing action are confined, having a burnishing disc which is completely enclosed in a housing. The housing has a peripheral domed flange terminating in a sponge rubber skirt in contact with the floor, and is mounted to float in response to unevenness in the floor level. The weight of the housing compresses the skirt to the extent of 0.19 to 0.25 pounds per linear inch of skirt circumference to seal the enclosure. In one form of the invention the housing floats on a pair of sleeves surrounding bolts screwed into the base of the machine. In another form the housing is suspended from a flexible diaphragm surrounding the drive shaft.

Abstract: An improved blackboard eraser used for automatically erasing the chalk dust comprises a housing, in which several sets of brushes and rollers in number corresponding to the brushes are installed. The rollers are made of suitable chalk-erasing material and the bottom contacts the brushes, so that the brushes can erase the chalk dust on the rollers, then they let the chalk drop down into the trough, when the rollers are rotating. This method avoids the chalk dust flying in the air. The gear means are installed on each side of the rollers. Furthermore, the gear means are connected with the idle gears on two sides of the housing to form a gear system. The RPM between the rollers are different due to the different number of the gear teeth between the gear means and the idle gears; then a friction effect is generated because of the different speeds between them, so that the erasing effect for the blackboard is improved.

Abstract: The present invention provides a bowling lane maintenance apparatus moving on a bowling lane along the length thereof to effect a maintenance and thereafter traversing to the adjacent bowling lane across a division capping therebetween to effect a similar maintenance, the maintenance apparatus including a body, a first link pivotally connected at one end with the body and spring-biased in one direction, the first link having a relatively long length, a second link pivotally connected with the other end of the first link and spring-biased in the same direction, the second link having a length smaller than that of the first link, a roller rotatably mounted on the end of the second link opposite to the first link and a detection mechanism on the first and second links for detecting a relative position between the first and second links.

Abstract: A pad driver assembly for a high speed floor burnishing machine includes a flexible or semi-rigid backing member with a pad beneath it and gripping projections for holding the pad in place. The backing member is provided with apertures so that when the pad assembly is driven at high rotational velocities beneath a shroud, air is drawn in through the apertures and forced radially outward in the pad, increasing the gripping action between the gripping projections and the pad, and also increasing the downward atmospheric pressure on the peripheral portion of the pad to promote increased polishing effectiveness.

Abstract: The present invention provides a bowling lane maintenance apparatus of applying a conditioning oil to the surface of a bowling lane and then buff finishing the oil applied bowling lane surface, said maintenance apparatus including a body, a box member pivotally mounted on said body and including a pair of parallel spaced side plates, oil applicator and buffing rollers rotatably supported within said box member perpendicular to said side plates and disposed on the opposite sides about the pivot, and a positioning air cylinder mechanism operably interposed between said body and one edge of said box member at its longitudinal center, said positioning air cylinder mechanism being adapted to pivot said box member such that one of said oil applicator and buffing rollers will be brought into contact with the surface of the bowling lane or both the rollers will be separated from the bowling lane surface.

Abstract: A polishing and scrubbing pad for a floor polishing machine is provided and which comprises a plurality of equally dimensioned segments secured together by a connector in such a manner that spaces exist between the segments, each of which has a leading cutting edge for cutting old wax from a floor being worked on.

Abstract: A driver assembly for the burnishing pad of a high speed floor burnishing machine includes a rotatably driven hub having spaced-apart recesses in its outer surface. The hub is fixed to a flexible backing plate having inner and outer depending cylindrical retaining flanges defining a channel in which the burnishing pad is received for attachment to the backing plate by a gripper pad. The inner edge of the burnishing pad is clamped against the gripper pad by an inner clamping cup which is received within the inner retaining flange in an interference fit therewith. The driver assembly is supported on a center caster, the wheel of which is disposed in the clamping cup. The burnishing pad and driver assembly are surrounded by a vacuum shroud which is continuously evacuated by radial air flow generated by the motion of the driver assembly.

Abstract: A floor polisher mounting disk for mounting a polishing pad on a motorized floor polishing machine is provided which is characterized by the ability to readily flex upon encountering a protuberance in a floor such as a door threshold. The mounting disk includes a hum portion and a rim portion which is positioned in spaced relation to the hub portion, resilient plastic means interconnecting the two portions for providing a pliable interconnection between the two, and a resilient lip extending from the resilient plastic means for mounting a polishing pad thereon. A method of forming the floor polisher mounting disk is also provided which includes the steps of injection molding a plastic hub and rim portion, annealing the same, and thereafter injection molding a relatively soft plastic material to overlie and interconnect the hub and rim portions.

Abstract: A floor sanding and polishing machine is disclosed in which a plurality of heads carrying abrasive wheels are spring-mounted below a frame or body which is carried by a trolley in a height-wise adjustable manner. In this way the machine can be steered easily and without fatigue, and it is also possible for the working pressure to be adjusted mechanically and with precision in relation both to the material to be treated and the type of sanding wheel employed.

Abstract: A driver assembly for the pad of a high speed floor burnishing machine includes a flexible backing plate having a peripheral retaining skirt which centers the pad on the driver assembly and also prevents the edges of the pad from growing or expanding to a larger circumference during high speed rotary burnishing action. The backing plate adds stiffness to the pad when rotating at high speed, and it promotes uniform contact of the pad with the floor at the outer radial extremities of the pad where the velocity is greatest and the polishing is most effective. In the illustrated embodiment, the pad and driver assembly are surrounded by a shroud which is continuously evacuated by radial air flow generated by the motion of the driver assembly which includes a finned hub. The air flow carries debris generated by the burnisher to a collection bag or filter without leaving the machine.

Abstract: A high speed floor buffing machine equipped with a pad holder for an X-shaped buffing pad is disclosed. The arms of the pad holder have a wedge-shaped cross section that acts as an air foil to create air currents that flow up between the arms of the buffing pad. The casing surrounding the pad has a specially designed tunnel-like spiral diffuser that guides the air currents into a collection box. The casing also has a flexible skirt mounted to the lower edge thereof, extending around three-quarters of the casing periphery, and closing the gap between the casing and the floor. The chassis has two pair of wheels and is designed so that when the buffing machine is off, the machine rests entirely on the wheels with the buffing pad raised off the floor, and when the machine is on, the air currents urge the pad against the floor with a predetermined pressure. Alternate embodiments of the pad holder are disclosed.

Abstract: A combination base board/corner and floor brush holder is provided for simultaneously cleaning or polishing the base boards and floor. The device consists of a circular pad for removable attachment to bottom of the holder for use on a floor and a plurality of brushes for removable attachment around perimeter of the holder for use on a base board of a wall. A flexible cover is removably attached over the holder to keep the brushes in proper position when the holder rotates when used. A longer softer brush may be installed so that bristle will reach to a corner apex between wall at right angles to each other.

Abstract: A device capable of adhering to a wall surface by suction by the pressure of an ambient fluid and treating the wall surface, which comprises a pressure receiver member and a partition defining a pressure reduction zone in cooperation with the pressure receiver member and the wall surface.In one aspect, the partition has a sealing function of preventing inflow of a large amount of an outside fluid into the pressure reduction zone, and a treating function of treating the wall surface by being moved in a required manner.In another aspect, the partition has the above sealing function, and a travelling function of moving the device, by being rotated about an axis of rotation slightly inclined to an axis which is substantially perpendicular to the wall surface.

Abstract: A coal-tar emulsion seal coat is applied atop, spread, and pressed into an asphalt pavement by a continuous rolling technique whereby liquid sealant is carried by and released from a delivery tank extending between the sides of a frame onto the asphalt surface. A first and second set of rollers extending between the frame sides spread and smooth an even pattern of sealant, then a third, smaller, lighter roller provides a finishing and touch-up operation.

Abstract: A pad holder adapted for use with a coupling device which is operably connected to a rotatable drive shaft of a floor maintenance machine includes first and second pad holder members rotatably and detachably joined in coaxial relationship by lugs and cam-like ramps. An annular floor cleaning or polishing pad is held between the pad holder members and gripped for rotation by the drive shaft. Pull tabs are provided for moving the lugs away from engagement with the ramps to quickly disassemble the pad holder.

Abstract: A floor polishing machine according to the preferred form of the teachings of the present invention includes a body portion having a platform, and a handle pivotally mounted to the platform. First and second sets of wheels are provided adjacent the rear of the platform and on opposite sides of the handle pivot. For coupling the handle and the platform together, torsion springs are provided having first ends anchored to the platform and having second ends connected to the handle. The torsion springs urge the platform to pivot about the first set of wheels downwardly in the rear and upwardly in the front.

Abstract: A buffer deck assembly for floor scrubbing, cleaning and polishing machines includes a displaceable buffer deck housing mounted to the machine through a substantially U-shaped mounting frame having a pair of sleeves that each slidably receive a cantilever support arm. The opposite end of each cantilever support arm is pivotally mounted to the machine frame through a yoke and pivot pin. Coil springs received around each support arm engage the end of the sleeves of the deck mounting frame and bias the deck to an operative position where proper tension is provided to the drive belt for the buffer brush or pad. When the buffer deck housing is displaced rearwardly from the operative position, tension on the drive belt is released and power to the buffer brush or pad is interrupted. A mechanism is also provided for raising and lowering the buffer deck housing. The raising and lowering mechanism includes two connecting rods fixed to a rotatable shaft.

Abstract: An apparatus for diffusing air turbulence created during the normal operation of a rotary pad floor polishing machine. This device includes an air permeable member (12) which surrounds the circumference of the pad shroud (11), thereby physically preventing the escape of particulate matter from beneath the floor polishing machine and disrupting turbulent air flow. A mounting ring (13) is included for pressure fitting the permeable element to the pad shroud.