B - Operations – Transporting – 60 – P
Patent
B - Operations, Transporting
60
P
B60P 1/44 (2006.01)
Patent
CA 2073346
2073346 9110577 PCTABS00006 A control device for hydraulic working cylinders of a sideboard of a vehicle comprises a power-driven hydraulic medium pump (2) connected to a medium reservoir (4) and, via pump branch pipes (8', 8'') with associated control valves (10, 13), to a chamber of a hydraulic jack and to a locking cylinder (14) of the sideboard. A pressure-intensifier piston cylinder (15) is connected parallel to the pump branch pipes. An electric manometric switch (16), which is connected to a meter (17) and to an interrupter switch (18) for the connection pipe to the electric pump motor, and which switches off the pump motor (2) when a predetermined pressure is exceeded, is connected to the locking cylinder (14). Connected to this manometric switch (16) is a manometer (20) with a maximum indicator which is not accessible from the outside and which indicates a maximum overload which may be exerted on the sideboard after the pump motor (2) has been switched off.
Fetherstonhaugh & Co.
Weber Gunter
LandOfFree
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