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US 4,893,735 AGranted
Apparatus for controlling hydraulic jacks mounted on a rotary hopper
AssigneePaul Wurth S.A.
InventorEmile Lonardi
Life of this patent
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Abstract
The apparatus comprises a hydraulic unit mounted directly on the wall of the bottom of a rotary hopper and supplying hydraulic fluid to each of the jacks mounted on the hopper wall. This hydraulic unit is connected to an energy source on a fixed bracket located in the region of the bottom of the hopper, but which is independent therefrom. As the rotary hopper rotates, the hydraulic unit retains its connection with the energy source. The energy source activates the hydraulic unit, which subsequently opens the hopper.
Claims10
An apparatus for controlling hydraulic jacks, comprising:
- a support member;
- a rotary hopper, rotatably mounted on the support member, said hopper having an outer wall and a bottom portion;
- a plurality of hydraulic jacks mounted directly on the rotary hopper;
- a hydraulic unit mounted directly on said outer wall of the bottom portion of said hopper, said hydraulic unit including means for supplying hydraulic fluid to said hydraulic jacks;
- and
- energy source means for actuating said hydraulic unit, said energy source means located adjacent to said bottom portion of said hopper, but being independent from said bottom portion.
3 more elements
An apparatus for controlling hydraulic jacks, comprising:
- a support member;
- a rotary hopper, rotatably mounted on the support member, said hopper being an outer wall and a bottom portion;
- a plurality of hydraulic jacks mounted directly on the rotary hopper;
- a hydraulic unit mounted directly on said hydraulic unit on said outer wall of the bottom portion of said hopper, said hydraulic unit comprising:
- a hydraulic pump having a piston rod;
- a rocker having opposed first and second ends, said piston rod being pivotably connected to said first end of said rocker;
- a support mounted on the outer wall of said hopper, said rocker being pivotably mounted on said support;
- a guide rail surrounding at least a portion of said hopper and having a center of curvature corresponding to the central axis of said hopper, said guide rail being vertically shiftable along said fixed bracket via said energy source means;
- a roller movable along said guide rail, said second end of said rocker being connected to said roller;
- and
- means for supplying hydraulic fluid to said hydraulic jacks;
- and
- energy source means for actuating said hydraulic unit, said energy source means located adjacent to said bottom portion of said hopper, but being independent from said bottom portion.
10 more elements
Dependencies are inferred from the claim text.