Removable pipe arch for dragline buckets

Details Removable pipe arch for dragline buckets Removable pipe arch for dragline buckets

1992-08-11

1994-09-13

Reese, Randolph A.

Excavating

Cable-operated

Scoop or bucket

37394, E02F 300

Patent

active

053457021

ABSTRACT:
A dragline bucket having a back wall, opposite side walls, a bottom, an open front, and a removable pipe arch assembly for connecting the front upper corners of the side walls of the bucket together, the removable pipe arch assembly including a saddle bracket on the inside upper front corner of each of the side walls of the bucket, the saddle bracket having a semi-annular channel providing a pocket on the inside face of each saddle bracket, a pipe arch extending between the saddle brackets, the opposite ends of the pipe arch being removably engaged in the saddle bracket on each of the side walls, a collar on each end portion of the pipe arch resting in the pocket in each of the saddle brackets, and a locking plate connected with each of the saddle brackets over the pipe for removably locking the pipe end portions in the saddle brackets. In event of damage to the pipe arch, the locking plates may be removed from the saddle brackets, the pipe arch with the end collars lifted from the saddle bracket and replaced and the locking plates reconnected with the saddle brackets.

REFERENCES:
patent: 882726 (1908-03-01), Weeks
patent: 1000258 (1911-08-01), Greenlee
patent: 1508639 (1924-09-01), Beach et al.
patent: 2455160 (1948-11-01), Burrow
patent: 2588657 (1952-03-01), Pitts
patent: 2796283 (1957-06-01), Grazier
patent: 2869843 (1959-01-01), Bleaney
patent: 4295287 (1981-10-01), Natzke et al.
patent: 4692089 (1987-09-01), Rodgers et al.
patent: 4791738 (1988-12-01), Briscoe
patent: 4944102 (1990-07-01), Behlendorf et al.

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