Societe Anonyme: Poclain

Pierre Jean Leyrat

Daniel Diony Baconet

Public works machine comprising a bucket mounted to pivot on the end of a boom, a device for adjusting the relative position of said bucket with respect to said boom, a ripper tooth, which is mounted to pivot on the end of the boom, while said position-adjusting device is coupled between the boom and the tooth, two selective immobilization devices, one for immobilizing the bucket with respect to the boom in a configuration where said bucket is not in operation, in which the penetrating element of this bucket is orientated towards the boom and disposed near said latter, the other for immobilizing the bucket with respect to the tooth in a configuration where said tooth is not in operation, in which said tooth is joined to the outer face of the bottom of the bucket, the distance separating the end of the tooth from the pivot axis being at the most equal to that separating the penetrating element of the bucket from said pivot axis. One application of the present invention is the production of a public works machine which is satisfactorily efficient for digging and breaking up works.

Excavator bucket and ripper tooth assembly

An excavator comprising a plurality of buckets mounted on an endless chain on a jib, and a bottomless scoop at the working end of the jib through which the buckets pass in use. The scoop is power operated to break up the soil being excavated, and as each bucket passes through the scoop it co-operates with the scoop to form a complete digging bucket.

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Trilport, France

Pierre Jean Leyrat