Abstract: An improved safety system used to determine the present position of a car riding on railroad tracks that provides data to control signals, such as flashing lights, and crossing gates at railroad grade crossings in order to prevent accidents with vehicles or persons.

Abstract: Present embodiments relate to a tie plate orientation device. More specifically, but without limitation present embodiments relate to a tie plate orientation device that orients tie plates in a desired orientation for subsequent feeding, including an optional handheld magnetic device for manual assisted manipulation of the tie plates.

Abstract: A vehicle includes a controller, programmed to responsive to detecting, via a vehicle sensor, an obstacle blocking a route on which the vehicle is traversing, report the obstacle and blockage to a server via a wireless connection; responsive to receiving a command from the server instructing to perform an exploratory maneuver to remove the obstacle from the route, execute the command via an autonomous driving controller; and report an implementation result of the exploratory maneuver to the server.

Abstract: The railroad track wire connection is configured for electrically connecting a first element of a railroad installation to a second element of the railroad installation, the first element and the second element being electrically conductive, at least one of the first element and the second element being a rail of a line of rails of a railroad track of the railroad installation.

Abstract: A device for removing an object on a road surface includes a brush section which is provided at a vehicle body of a guide rail type vehicle traveling on the road surface extends obliquely downward toward the front side in an advancing direction of the vehicle body, and a lower end of the brush section being capable of coming into contact with the road surface; a brush support section that fixes the brush section; a fixing section fixed to the vehicle body; and a connecting section that is interposed between the brush support section and the fixing section to connect the brush support section to the fixing section.

Abstract: The present invention provides a model railcar for cleaning, which can remove an oxide film and an oil film from the surface of rails and can simultaneously remove fine metal components, such as metal powder. The model railcar for cleaning comprises: a fan arranged towards a train track; a dust collecting chamber for containing alien substances drawn in by the fan; a cleaning block having a cleaning pad attached to a surface of the model train track, which faces the rails, a member capable of polishing or washing the rails being positioned on the cleaning pad; and a permanent magnet positioned to face the model train track.

Abstract: A vehicle combination for cleaning ballast on a track consists of a first ballast-collecting vehicle at the front with respect to a working direction, equipped with two edge-clearing chains which are mutually opposed across the width of the track and are designed to collect the ballast lying in a track bed region adjacent to the sleeper ends, and also consists of a subsequent second ballast-collecting vehicle having a continuous clearing chain that can be placed around the track to collect the ballast lying under the track, and comprising sieve systems for cleaning the ballast. In front of the first ballast-collecting vehicle there are two mutually separable sieve vehicles disposed one behind the other in a longitudinal direction of the machine and each having a sieve system. The two sieve vehicles can be loaded via a first conveyor belt line with ballast collected by the ballast-collecting vehicles.

Abstract: A slot car track cleaner is provided. The slot car track cleaner includes a housing having at least an upper plate and a lower plate. A ledge may be disposed within the housing. The present invention further includes a plurality of floating weights. The floating weights hang from the ledge. A bottom portion of each of the floating weights protrudes beyond the lower plate. Each of the floating weights slide upwards when a pressure is applied to the bottom portion. A vertical plate is secured to the housing. The vertical plate includes a bottom edge protruding from the housing beyond the lower plate. A cleaning pad is secured to a bottom surface of the lower plate and covers the bottom portions of the plurality floating weights and at least a portion of the bottom edge of the vertical plate.

Abstract: A particle removing arrangement is adapted to remove particles from the upper contact surface of an electric rail in an electric highway by the use of an airflow, where the particle removing arrangement is arranged in front of a current collector of a vehicle, where the particle removing arrangement includes an inlet opening for inlet of air and an outlet opening for outlet of air, where the inlet opening is directed in a forward direction and the outlet opening is directed in a sideway to rearward direction in relation to the driving direction of the vehicle, and where the particle removing arrangement creates a particle removing airflow from a forward movement of the vehicle. Particles can be removed from an electric rail without the use of an external power source. The particles can also be removed in a contact-less manner, such that there is no friction or abrasion between the particle removing arrangement and the electric rail.

Abstract: A cart that moves through a three-dimensional object printing system includes a platform and a cleaning device configured to remove material from a surface as the platform passes the surface. The cart further includes a rechargeable power supply configured to be connected to the cleaning device. A controller onboard the cart is operatively connected to the rechargeable power supply and the cleaning device. The controller is configured to connect the rechargeable power supply to the cleaning device and operate the cleaning device to clean the surface.

Abstract: A system includes a first controller, a data acquisition device, a friction modification unit, and a friction management controller. The first controller is configured to obtain an operational setting for a vehicle, and to output a first signal relating to the operational setting for controlling the vehicle. The data acquisition device is configured to obtain operational data of the vehicle as the vehicle travels, and to provide the operational data to the first controller. The first controller is configured to obtain a difference between the operational data and the operational setting, and to adjust the first signal based on the difference. The friction modification unit is configured to modify a friction characteristic of a surface of the route. The friction management controller is configured to direct the friction modification unit to modify the friction characteristic of the surface of the route based on the operational setting.

Abstract: Plant for melting and cleaning of snow and ice, distinguished in that the plant comprises a means for melting using enthalpy of a water source in order to melt snow and ice, and a means for cleaning for cleaning out the pollution from the water phase that contains the melted snow and ice. Method for melting and cleaning of snow and ice, using the plant according to the invention.

Abstract: A printer is configured to clean material from rails on which a cart rolls. The printer includes an ejector head configured to eject a material in a print zone, a first cylindrical member extending through the print zone, an actuator operatively coupled to the first cylindrical member and configured to axially rotate the first cylindrical member, a platform configured to move in a process direction along a surface of the first cylindrical member and receive material ejected by the ejector head in the print zone, and a first cleaner positioned to engage the surface of the first cylindrical member as the first cylindrical member is rotated by the actuator to remove material accumulated on the surface of the first cylindrical member.

Abstract: An apparatus and method for applying lubricant to a rail road track. The apparatus comprising a control module; a housing; a lubricant distribution block; and a plurality of tubes for connecting the control module to the housing wherein the housing houses the lubricant distribution block. The control module is positionable in close proximity to the rail road track and the housing is positionable adjacent to and along a section of rail road track to be lubricated. The lubricant is stored in a vessel in the control module and pumped from the control module to a lubricant distribution nozzle connected to the housing and wherein sliding the lubricant distribution nozzle along the section of rail road track in a first or second direction distributes lubricant along the section of rail road track.

Abstract: Embodiments of a magnetic pathway cleaning assembly include a magnet having a pathway facing surface and a magnet sweeper having a sweeping portion that is slidably engageable with the pathway facing surface of the magnet and a translation shaft having a first end opposite a second end. The first end is coupled to the sweeping portion and the second end terminates at a contact surface. A spring is engaged with the translation shaft such that the spring biases the magnet sweeper into a retracted position offset from the pathway facing surface of the magnet. Further, the magnet sweeper is actuatable such that a force applied to the contact surface of the translation shaft moves the sweeping portion along the pathway facing surface of the magnet.

Abstract: The present disclosure relates to a component for a railway snow melter. The component includes a mounting plate adapted for connection to a tie duct. The mounting plate defines a point nozzle opening and/or a track duct nozzle. A point nozzle is mounted to the mounting plate at a location above the point nozzle opening. A track duct nozzle is mounted to the mounting plate at a location above the track duct nozzle opening.

Abstract: A device 202 for servicing and/or inspection of a material handling system 204 is disclosed, which device provides safer, less time consuming and less difficult service and/or inspection of the material handling system 204 than other devices. The device 202 is adapted to be moved along a track 214 of the material handling system and adapted for servicing and/or inspection of the material handling system or components thereof positioned on or adjacent to the track 214. The device includes at least one section, such as a hatch and/or a sliding bearing surface 216, 602, 706, 708, 710, 902, 1002, displaceable between a first and a second position, where the section positioned in the second position is enabling a person of accessing parts of the material handling system which are moving relatively to the device during movement of the device or during operation of the material handling system.

Abstract: A railcar mover is provided that is configured for use on a railroad track and has a frame, a plurality of traction wheels, and a traction enhancing system. Included in the traction enhancing system is an air nozzle associated with at least one of the traction wheels, mounted directly or indirectly relative to the frame so that an outlet of the air nozzle is directed at a corresponding rail of the railroad track for emitting high pressure air for removing at least one of unwanted debris and moisture. In addition, a scraper blade is associated with the nozzle and mounted relative to the nozzle so that the scraper blade contacts debris on the track before the high pressure air, in a direction of travel of the mover.

Abstract: A method for detecting clogs in a tractive effort system of a rail vehicle or other vehicle includes the steps of determining a baseline air flow rate from an air compressor during steady state conditions, actuating the tractive effort system, determining a secondary air flow rate from the air compressor subsequent to actuation of the tractive effort system, and comparing the secondary air flow rate to the baseline air flow rate.

Abstract: A track rail heating assembly that is adapted to position a heater element in spaced relation proximate to a surface of a track rail of a railroad. The assembly includes at least one heating element, and a housing that is operable to at least partially surround the heating element while positioning the heating element near to track rail. The hood positions the heating element relative to the rail section such that a gap exists between the heating element and the rail section. As the heating element does not contact the rail, the heating element cannot form an electrical by-pass for signals passing through the rail section. The assembly further incorporates a flexible barrier that at least partially isolates a side surface of the track rail from ambient conditions to reduce heat loss.

Abstract: Railroad track cleaning assemblies and apparatus are described. An example railroad track cleaning assembly includes a movable carriage movably coupled to a frame to which a plurality of wheels are operably coupled to enable the frame to move on railroad tracks. Additionally, the railroad track assembly includes a shaft rotatably coupled to the movably carriage to receive one or more brushes that are to be rotated and engage one of the railroad tracks and a spring assembly coupled to the movable carriage and to the frame to bias, via the movable carriage, the one or more brushes into engagement with the one of the railroad tracks.

Abstract: A model train track rail cleaning device includes a base, a cleaning pad mounted to the bottom of the base and a grip body coupled with the top of the base. The cleaning pad has a set of grooves positioned parallel to one another and spaced to receive track rails when the pad is in a first orientation. The cleaning pad also has a second set of grooves positioned parallel to one another and perpendicular to the first set. The second set of grooves is spaced to receive track rails when the pad is in a second orientation. Preferably, the first set of grooves is spaced to receive the rails on model track of a first size and the second set of grooves is spaced to receive the rails on model track of a second size. The cleaning device is pushed and pulled across the rails to clean them.

Abstract: A brake control device for a brake system, wherein the brake system has at least one electromagnetic track brake device, which can be supplied with current at variable amperage according to the brake control device to create a braking force, and wherein the brake control device is designed to actuate the at least one electromagnetic track brake device at a cleaning amperage during travel in order to clean a rail. Also disclosed is a brake system having such a brake control device, a rail vehicle, and a method for cleaning a rail by means of an electromagnetic track brake device.

Abstract: An applicator assembly for delivery of a pumpable material to a top surface of a rail head of rail includes an applicator body having an orifice for delivery of the pumpable material to the top surface of the rail. The body is resiliently yieldable to permit the applicator body to move from a raised position, in which the orifice is positioned for delivering the pumpable material to the top surface of the rail head, to a depressed position in the event the applicator is contacted by a train wheel. The applicator body thereafter returns to the raised position. The applicator body is mounted for movement between a working position in which the applicator body is closely adjacent the rail head and a rail-service position in which the applicator body is remote from the rail head.

Abstract: The present disclosure relates to a component for a railway snow melter. The component includes a mounting plate adapted for connection to a tie duct. The mounting plate defines a point nozzle opening and/or a track duct nozzle. A point nozzle is mounted to the mounting plate at a location above the point nozzle opening. A track duct nozzle is mounted to the mounting plate at a location above the track duct nozzle opening.

Abstract: Treatment of spinal irregularities, including, in one or more embodiments, derotation apparatus and systems that can be used to reduce the rotation of vertebral bodies. Derotation apparatus that may comprise a tube assembly comprising an inner sleeve and an outer sleeve disposed over the inner sleeve. The inner sleeve may have a distal end for attachment to an implant. The tube assembly may further comprise a handle assembly. The tube assembly may further comprise a ball joint assembly disposed between the tube assembly and the handle assembly. The ball joint assembly may comprise a ball joint configured for attachment to a coupling rod.

Abstract: A model train track rail cleaning device includes a base, a cleaning pad mounted to the bottom of the base and a grip body coupled with the top of the base. The cleaning pad has a set of grooves positioned parallel to one another and spaced to receive track rails when the pad is in a first orientation. The cleaning pad also has a second set of grooves positioned parallel to one another and perpendicular to the first set. The second set of grooves is spaced to receive track rails when the pad is in a second orientation. Preferably, the first set of grooves is spaced to receive the rails on model track of a first size and the second set of grooves is spaced to receive the rails on model track of a second size. The cleaning device is pushed and pulled across the rails to clean them.

Abstract: A track cleaning car that includes a base plate having a top surface, a bottom surface, a front end, and a rear end, a hole centrally disposed in the base plate with a motor suspended over the hole, the motor disposed from a floating plate compressibly mounted over the base plate on a plurality of springs, each of the plurality of springs disposed around each of a plurality of guide rods, the motor engaging a driveshaft to rotate a rotatable disk with a cleaning pad removably attachable thereto, and the track cleaning car having a photomicroprocessor sensible of the motion of the track cleaning car, the photomicroprocessor arresting the motor when sensing the track cleaning car is at rest.

Abstract: Railroad track cleaning assemblies and apparatus are described. An example railroad track cleaning assembly includes a movable carriage movably coupled to a frame to which a plurality of wheels are operably coupled to enable the frame to move on railroad tracks. Additionally, the railroad track assembly includes a shaft rotatably coupled to the movably carriage to receive one or more brushes that are to be rotated and engage one of the railroad tracks and a spring assembly coupled to the movable carriage and to the frame to bias, via the movable carriage, the one or more brushes into engagement with the one of the railroad tracks.

Abstract: The present disclosure relates to a component for a railway snow melter. The component includes a mounting plate adapted for connection to a tie duct. The mounting plate defines a point nozzle opening and/or a track duct nozzle. A point nozzle is mounted to the mounting plate at a location above the point nozzle opening. A track duct nozzle is mounted to the mounting plate at a location above the track duct nozzle opening.

Abstract: An obstacle-removing device having brushes that can be retracted when the device is at the rear side in the traveling direction of the vehicle. The device includes a vertical frame positioned to the leading end in the traveling direction of the vehicle, and a lifting/lowering device attached to the vertical frame to lift and lower a brush holder having brushes and attached to a vertically movable member which can be lifted and lowered by the lifting/lowering device. The brush holder is pivotally attached to the vertically movable member such that the brush holder is tilting forward when the brushes held by the brush holder contact the running surface to perform an obstacle-removing operation.

Abstract: A railway vehicle recovers metallic objects like railroad spikes from a railway bed having a pair of rails. The vehicle includes wheels for riding on each rail and a carriage carrying a crawler for supporting the vehicle on the railway bed when one of the rails is removed. A pneumatic lift raises and lowers the carriage and crawler. A conveyor belt assembly for transporting the metallic objects to a hopper is supported entirely by an overhead support structure. A lateral translator moves the conveyor belt assembly from side to side. Various features are provided which allow a conveyor belt to be removed from one side of the conveyor belt assembly while maintaining continuity of the conveyor belt loop. A distinctive conveyor lift is provided for raising and lowering the conveyor belt assembly. A remote control is provided for controlling various operations of the vehicle.

Abstract: The object is to provide an obstacle-removing device for a removing obstacles on guideway, which is simple in configuration, low in manufacturing cost, and can remove the obstacles steadily and effectively, and of which the brushes for sweeping the running surface can be retracted easily when the device is in the rear side of traveling direction of the vehicle. The device comprises; a vertical frame positioned to the leading end in traveling direction of the vehicle, and a lifting/lowering device attached to the said vertical frame to lift and lower a brush holder attached to a vertically movable member which can be lifted and lowered by the lifting/lowering device, the brush holder having brushes for removing obstacles on the guideway; wherein the brush holder is pivotally attached to the vertically movable member such that the brush holder is tilting forward when the brushes held by the brush holder contact the running surface to perform obstacle-removing operation.

Abstract: A system and method for controlling an application of a friction modifying agent to an area of contact between a railway wheel and a railway rail over which the wheel is traversing to selectively modify the coefficient of friction at the contact area. A sensor is used for detecting a parameter relating to the operation of the railway train. A controller is responsive to the sensor for selecting one or more of a plurality of friction modifying agents and controls the application of the agent to the rail as a function of the parameter. An applicator is responsive to the controller and applies the friction modifying agent to the area of contact between the railway wheel and rail. A second application of the agent may be predicated upon the effectiveness of a first application of the agent. The selection of the appropriate agent may include a consideration of a current location of the railway vehicle.

Abstract: An applicator assembly for delivery of a pumpable material to a top surface of a rail head of rail includes an applicator body having an orifice for delivery of the pumpable material to the top surface of the rail. The body is resiliently yieldable to permit the applicator body to move from a raised position, in which the orifice is positioned for delivering the pumpable material to the top surface of the rail head, to a depressed position in the event the applicator is contacted by a train wheel. The applicator body thereafter returns to the raised position. The applicator body is mounted for movement between a working position in which the applicator body is closely adjacent the rail head and a rail-service position in which the applicator body is remote from the rail head.

Abstract: The invention is a model railroad track scrubbing car with rollers set at a scrub angle of about 30° to scrubs the tops and sides of the track rails. The rollers freely rotate about fixed axels under the chassis of the weighted car. Each roller is preferably a conventional paint roller with an inner sleeve and an outer tubular roll made of an absorbent, compressible, resilient foam material. The active working surfaces of each roller compress against, frictionally engage and deform around the tops and sides of the rails. The scrub angle and rollers provide across-the-rail scrubbing action and possibly along-the-rail scrubbing action. The circumferential working areas of the rollers are wider than the width of their associated track rails. The scrub angle and height of the roller axels above the track rails are adjustable to set the amount of roller compression and scrubbing action against the track rails.

Abstract: An applicator (10) for applying a friction modifying material to the top of rails (12). The wayside applicator includes an applicator bar (26) that has a dam for holding friction modifying material.

Abstract: A machine which travels on railroad rails includes a conveyor belt which transports metallic objects from a railway bed into a hopper. The conveyor belt revolves around a pair of rollers mounted on the framework of a conveyor belt assembly. One roller magnetically picks up the metallic objects and a hydraulic motor powers the other roller to drive the conveyor belt. The magnetized roller is mounted via two mounting bearings which slidably engage the assembly. An adjustment bolt on the assembly engages the mounting bearing to move the magnetized roller to adjust conveyor belt tension to facilitate replacement of the belt. A lift beside the assembly raises and lowers one end of the assembly which rotates about a pivot tube within the conveyor belt. The lift, pivot tube and hydraulic lines connected to the motor are all situated to allow the belt to be removed without interference therefrom.

Abstract: A system and method for assessing a health and functionality of a locomotive friction modifying system wherein the locomotive has a friction modifying applicator associated with a wheel of the locomotive for applying a friction modifying agent to a rail on which the wheel is traversing. The system and method comprise a sensor detecting a predetermined operational condition of the locomotive. The system and method also comprise a controller associated with the sensor and responsive to input from the sensor determining a per unit creep of an axle of the locomotive. The controller also determines a tractive effort of the axle of the locomotive and determines a friction modifying applicator state for the applicator associated with the axle.

Abstract: A system and method for friction management for managing and controlling an application of a friction modifying agent to an area of contact between a railway wheel and a railway rail over which the wheel is traversing to selectively modify the coefficient of friction at the contact area. The system comprises a sensor for detecting a parameter relating to the operation of the railway train. A controller is responsive to the sensor and controls the application of a friction modifying agent to the rail as a function of the parameter. An applicator is responsive to the controller and applies the friction modifying agent to the area of contact between the railway wheel and rail. The invention also includes a method for railway train friction management for managing and controlling the application of friction modifying agent to an area of contact between railway wheel and railway rail over which the wheel is traversing to selectively modify the coefficient of friction at the contact area.

Abstract: A rail ballast wing assembly includes a outer door with at least one hinge edge, a template door pivotably secured to least one of the hinge edges and a positioning device associated with the outer door and the template door for maintaining an angular orientation of the template door relative to the outer door. A breakaway mechanism is connected to the positioning device and the template door and configured for temporarily disengaging the template door from the positioning device upon exposure to impact forces. The breakaway mechanism preferably includes a plate connecting the positioning device to the template door, and being disengageable from the template door. A top pin on the outer door is pivotably secured to a top plate through the use of at least one retainer bracket.

Abstract: A model railroad track cleaning car having a cleaning element suspended between a pair of wheeled trucks. The cleaning element is an abrasive material that is affixed to the underside of a weighted chassis that is suspended from a pair of articulating arms connected to the respective wheeled trucks. The cleaning material is easily replaced by removing a pair of fasteners from the chassis. A spring tension apparatus is positioned between the articulating arm and the cleaning element chassis to selectively position the cleaning element over the model railroad tracks. A retaining wire is captured in the articulating arm and engages the corresponding truck to turn the articulating arm with the truck, thus positioning the cleaning element over the model railroad tracks even when traversing a curve. A thumb wheel is formed with a notch that receives the articulating arm to lock the thumb wheel into a selected position.

Abstract: A wiper bar for application to a rail of a railroad track for applying lubricant to the head of the rail having a series of lubricant outlets and a rubber or the like guide or brush for confronting the gage face of the rail head and guiding lubricant discharged from the outlets up on the gage face, and the wiper bar/rail installation.

Abstract: A heating system for railroad switches or other movable railroad structures that substantially eliminates protruding heater elements that may be damaged. The heater elements may cast into, enclosed within or received within recesses of a tie (including a metal or concrete tie), rail or other component. In one implementation, inductive heating is used to directly heat the rail, tie or other structure.

Abstract: To lubricate a length of track, a plurality of lubricating nozzles are provided. Each nozzle is fed by the output of a single positive displacement pump, and all the pumps are controlled by a computer. Vibration sensors, sound sensors, or L/V ratio sensors detect physical qualities which occur as a train passes a given point, and another detector measures the time between successive wheels on the truck of a car as it passes a given point to measure train speed. The computer compares the output readings measured by the detector to a table of outputs in its memory that are indicative of a lubricated track to determine if lubrication is needed.

Abstract: A method and device to further remove snow left by a locomotive snowplow while enhancing traction and control of a locomotive or powered car. The snow removal enhancement method and device typically include a flap arranged to extend beyond a bottom edge of a locomotive snowplow over each rail. The flap loosens and removes residual snow, as well as other debris, left by the snowplow. The device handily removes snow while being constructed of the thinnest material possible.

Abstract: A stripping apparatus is associated with a track maintenance machine having a machine frame mobile on a track comprised of rails fastened to ties. The stripping apparatus is designed for stripping off ballast lying on the ties and includes a supporting beam, which is mounted for vertical adjustment on the machine frame, and a plurality of elastic sweeping elements, which are disposed in a substantially vertical position. The sweeping elements are fastened at their upper ends to the supporting beam and are arranged adjacent to one another in a sweeping plane extending perpendicularly to the direction of longitudinal extension of the track. Two support rollers fastened to the supporting beam are provided for riding on the rails of the track.

Abstract: A lubricant applicator for disposing lubricant onto a metal surface. The lubricant applicator generally includes a combination holder and dispenser. Lubricant is disposed from the same portion of the combination holder and dispenser as the lubricant was inserted, in the rear portion of the combination holder and dispenser. A dispensing system applies constant force to the rear portion of the combination holder and dispenser so that lubricant is disposed from the rear portion and out of the front portion of the combination holder and dispenser. Lubricant, generally in the form of a stick, can therefore be easily replaced without removing the applicator from its location or without removing its mounting arrangement. Various applications and mounting arrangements for the lubricant applicator are disclosed, as is a method for providing a lubricant applicator.

Abstract: A snowblower apparatus and a method of using the snowblower. The snowblower apparatus is self contained and portable and may be mounted on a prime mover. A turbine engine is located within a housing and discharges its exhaust to the desired area of snow or ice removal. The housing is rotatable and tiltable about orthogonal axes so as to allow the operator to direct the discharge nozzle to a desired location. A fuel tank may be mounted separately from the housing and turbine engine. An afterburner may be used to increase the exhaust temperature thereby to remove ice and otherwise dry the desired location.

Abstract: A cleaning model railroad car which can do various cleaning by itself and which can do cleaning effectively regardless of a travel speed thereof. The cleaning model railroad car 8 comprises: a car body 20; wheels 8b attached to the car body, for riding on rails 3a and 3b; a motor 8a attached to the car body, to which an electrical current is supplied through the wheels on the rails and a motor shaft 8e is provided; a dust collection chamber 21 provided at the car body; a head mounting concave portion 23 provided below the motor, for opening toward a lower surface of the car body below thereof and communicating with the dust collection chamber; and a cleaning head 24 or 25 provided at the motor shaft projected in the head mounting concave portion, which can be installed to and removed from the motor shaft.