Railways – Track clearers
Patent
1989-11-09
1991-10-08
Graham, Matthew C.
Railways
Track clearers
15 55, B61F 1900
Patent
active
050544012
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a method and a device for cleaning the top surfaces of rails.
In connection with leaves and other parts of plants falling down on railway rails, a problem difficult to master will arise. The leaves and the other particles contribute to a lubricating film being formed on the rail with the result that the tractive ability of a locomotive is reduced due to skidding between the drive wheels of the locomotive and the contact surface of the rail arising. As a consequence of this it may be necessary to double the locomotive to manage propulsion of a certain train set. Due to leaves and particles covering the tread surface of the rail the braking distance of the train set will also increase. There is also a risk that the wheels of the locomotive and the trucks will lock in braking, with the result that the tread surfaces of the wheels will be partially flattened out and consequently destroyed, the consequence unfortunately being, in turn, that expensive and time-consuming repairing measures must be taken.
Thus, there is a need to achieve cleaning of the tread surface of the rail in an efficient manner.
SUMMARY OF THE INVENTION
It is the object of this invention to provide a method and a device for cleaning the tread surface of the rail efficiently.
BRIEF DESCRIPTION OF THE DRAWING
Illustrative examples of the invention will be described in greater detail below with reference to the attached drawings, in which:
FIG. 1 is a schematic lateral view of a device according to the invention;
FIG. 2 shows schematically the mode of operation of the device in a first direction of travel;
FIG. 3 shows schematically the mode of operation of the device in a second direction of travel;
FIG. 4 is a schematic top plan view of the inventive device; and
FIG. 5 is a schematic vertical longitudinal section of a unit carrying the brush means in an exposed position, on a larger scale.
DETAILED DESCRIPTION
It is apparent from FIGS. 1 and 4 that the rail cleaning device 1 comprises a chassis 2 supporting a plurality of wheels 3 so designed that the device 1 is a vehicle running on rails and, thus, can be driven along, for example, a railway, the two rails of which are designated by 4.
The device 1 further comprises a source 6 with pressure medium in the form of for example a hydraulic oil unit comprising a Diesel engine, a hydraulic oil pump and a hydraulic oil tank. The source 6 with pressure medium supplies a plurality of pressure medium cylinders and pressure medium motors with pressure medium.
The device 1 further comprises four scraping means 10 which are articulatedly connected to the chassis 2 via slewing brackets 11, 12, a pressure medium cylinder 13 acting between the chassis and the slewing bracket 12 to enable an individual operation of each scraping means 10 between an inactive position of repose and an active working position. The scraping means 10 comprises a plurality of replaceable scraping elements 14 which are preferably formed of an elastic material, for example rubber.
The device 1 further comprises four loosening means 20 which are articulatedly connected to the chassis 2 via slewing brackets 21, 22. A pressure medium cylinder 23 is arranged to act between the slewing bracket 22 and the chassis 2 to enable an individual operation of the loosening means 20 between an inactive position of repose and an active working position. The loosening means 20 comprises a plate-shaped member 24 preferably having on its underside a plurality of applied weld beads 25 which preferably extend diagonally across the plate 24.
In the illustrative example shown, the device 1 comprises eight reversibly rotatable brush means 30 which are operable by means of a telescopic device 40 between an inactive position of repose and an active working position. The rotatable brush means 30 preferably comprise rolls provided with brushes, so-called circular brushes which preferably comprise a plurality of brush wires 31 of metal, for example steel, or of a plastic material. However, it sho
REFERENCES:
patent: 414511 (1889-11-01), Fisher
patent: 469103 (1892-02-01), Taylor
patent: 573511 (1896-12-01), Grunow
patent: 626039 (1899-05-01), Robertson
patent: 701795 (1902-06-01), Chamberlin et al.
patent: 793924 (1905-07-01), Presser
patent: 2042029 (1936-05-01), Smith
patent: 2505501 (1950-04-01), Miller et al.
patent: 3004273 (1961-10-01), Rushmer
patent: 4062295 (1977-12-01), Hamann
AB Mahler & Soner
Graham Matthew C.
Morano S. Joseph
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