Railway rolling stock – Motor placement
Reexamination Certificate
1998-12-23
2001-10-23
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Motor placement
C105S096000, C105S238100
Reexamination Certificate
active
06305296
ABSTRACT:
FIELD OF THE INVENTION
The following invention relates to a power pack trolley capable of riding along tracks or belt conveyor stringent and providing a motive power to other trolleys also riding along the tracks or stringers. More particularly, though not exclusively, the invention relates to such a system for use in underground coal mining installations. In such installations, a conveyor belt structure has a pair of stringers extending longitudinally of the structure. These stringers are used to support trolleys which transport equipment, materials or personnel along the conveyor belt structure. For example, such trolleys can be used to transport materials or exhaust fans for example, along a coal mine tunnel.
OBJECT OF THE INVENTION
It is the object of the present invention to provide a means of powering belt structure mounted conveyances (trolleys). This would be in the form of an independent power pack trolley or carriage from which mechanical or electrical power may be taken to drive the motor or motors of another trolley or carriage not having its own power source. This allows the system to operate under more arduous conditions by driving and/or braking on one or all wheels in contact with the rails. By this method, the system can operate safely on steeper gradients.
The use of a single independent power source allows the reduction of the trolley mass and increase of the payload.
DISCLOSURE OF THE INVENTION
There is disclosed herein a power pack trolley having:
a frame;
wheels attached to the frame and adapted to ride along a track,
motor means adapted to drive at least one of said wheels,
a power pack, and
a take-off by which energy from the power pack can be drawn for use in driving equipment upon another trolley.
Typically, the power pack comprises a hydraulic pump or battery or stored energy source.
Alternatively, the power pack includes a generator and a fuel source.
Alternatively, the power pack receives energy from an external source.
Typically, the transmission equipment on the other trolley drawing energy from the power pack includes a motor drivingly associated with a wheel or wheels of the other trolley.
Typically, the power pack trolley need not be mechanically interconnected with the other trolley for the purpose of hauling thereof. However, a mechanical interconnection between the power pack trolley and the other trolley can include a spacer bar adapted to maintain a space between the power pack trolley and the other trolley.
Typically, the power pack trolley receive power from the power pack.
Alternatively, the motors of the power pack trolley can receive power from a separate power supply on board the power pack trolley.
There is further disclosed herein a combination of a trolley or carriage having motor driven wheels but no power source and a power pack trolley interconnected thereto.
Additionally, the two trolleys can be mechanically interconnected for the purpose of hauling.
REFERENCES:
patent: 1903701 (1933-04-01), Levin et al.
patent: 1903703 (1933-04-01), Levin
patent: 2272280 (1942-02-01), Stoltz
patent: 2412657 (1946-12-01), Stoltz
patent: 2547710 (1951-04-01), Lee
patent: 2547720 (1951-04-01), Schubert
patent: 2789234 (1957-04-01), Lambert et al.
patent: 3144837 (1964-08-01), Patton
patent: 3247807 (1966-04-01), Aversten
patent: 3852641 (1974-12-01), Titus
Robinson Keith Michael
Wilkinson Gordon Binner
Ladas & Parry
Morano S. Joseph
Olson Lars A.
Southem Engineering PTY LTD
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