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US 2003/0197386 A1Published application
Train traction device and methods
OwnerJames Graeme Dalrympleinventor
Life of this patent
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Abstract
Particles, devices and methods of increasing rail road train traction and reducing wheel/track noise. The invention provides hard metal particles which can be embedded into a rail head to minimize slippage for improved locomotive traction and reduced oscillations of train wheels which cause noise and track wear.
Claims20
A device for application of traction particles to rails, the device comprising:
- a) a grinding wheel;
- b) a metal source in contact with the grinding wheel, which metal source is ground and/or cut by the wheel to provide metal particles;
- and,
- c) a roller;
- whereby a first rail receives the metal particles;
- and,
- where after the roller presses the metal particles into the first rail.
4 more elements
A method of increasing rail traction, the method comprising:
- a) applying metal particles to a rail;
- and,
- b) pressing the metal particles into the rail;
- whereby the metal particles become embedded into a surface of the rail;
- and,
- thereby providing increased traction for train wheels moving over the surface.
3 more elements
The method according to claim 15, further comprising grinding a metal bar to provide the metal particles.
Dependencies are inferred from the claim text.