Hydrostatic transmission for end dog carriage drive

Details Hydrostatic transmission for end dog carriage drive Hydrostatic transmission for end dog carriage drive

1995-12-21

1997-12-02

Underwood, Donald W.

Material or article handling

Load carried along a horizontal linear path

Having gripper means

212330, 1986211, 1442421, 91534, 4147468, 2941191, 294 88, B65G 3500

Patent

active

056928769

ABSTRACT:
A log carriage system including a pair of carriages (10, 12) mounted for linear movement along a conveyor track. A pair of linear hydraulic motors (32, 44) each include a piston rod (30, 42) for both clamping and linear transfer of a log. A reversible hydraulic pump (62) transfers oil between working chambers (40, 52) of motors (32, 44) to move the log along a linear path past a cutting station. A three-way, two-position valve (120) connects line (68) to tank (T), and disconnects line (70) from system pump (SP), when pump (62) is operated to move oil from motor (32) to motor (44). Alternatively, linear hydraulic motors (32, 44) can be replaced by rotary hydraulic motors and a cable drive system for both clamping the log and moving the log along the linear path.

REFERENCES:
patent: 3727772 (1973-04-01), Pauls
patent: 5011001 (1991-04-01), Cameron

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