Earthworking machine of the loader type

Details Earthworking machine of the loader type Earthworking machine of the loader type

E - Fixed Constructions

02

F

214/26

E02F 3/30 (2006.01) E02F 9/22 (2006.01) E02F 3/42 (2006.01)

Patent

CA 1162888

IN THE CANADIAN PATENT & TRADEMARK OFFICE PATENT APPLICATION entitled: Earthworking machine of the loader type Inventor: Victor YEOU Applicant : POCLAIN ABSTRACT OF THE DISCLOSURE The invention relates to a hydraulic loader comprising a boom, a balance beam and a bucket for loading material, boom jacks and balance beam jacks being coupled between the frame and the boom and between the boom and the balance beam. A secondary jack is also coupled between the frame and the boom and comprises an active chamber, whilst a first conduit connects this active chamber to the extension chamber of the balance beam jack and a first cut-off valve is disposed in this first conduit, establishing, in its first position, communication of the two sections of the first conduit which are connected thereto, isola- ting, on the contrary, in its second position, these two sections. One application of the invention is the production of a powerful and efficient loader.

378231

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