Fluid handling – Systems – With running joint between movable parts of system
Patent
1978-05-12
1981-04-21
Michalsky, Gerald A.
Fluid handling
Systems
With running joint between movable parts of system
137594, 239177, 239710, B05B 312
Patent
active
042626943
ABSTRACT:
The present invention involves a central pivot assembly for a self-propelled, center-pivot irrigation system. The assembly includes an hydraulic slip ring arrangement, a pivot arrangement, and a support arrangement for the pivot pipe of the irrigation system. The hydraulic slip arrangement includes first and second concentrically positioned rings which permit hydraulic fluid to continuously flow along out and return paths between a stationary source and the moving, pivot pipe. The pivot arrangement of the present invention includes a pivot bar, sleeve member slideably positioned about the pivot bar and fixedly secured to the pivot pipe, and pillow blocks which slideably receive the ends of the pivot bar. This arrangement allows the pivot pipe to move in vertical planes to accommodate the up and down motion of the distribution pipe as it revolves about the central axis of the system. This arrangement also offers the safety feature that should the pivot bar and one of the sleeve member or pillow blocks freeze up, then the pivot pipe can still move about the pivotal axis. Chains are extended between the outer ring of the hydraulic slip ring arrangement and the stationary, main body of the support arrangement. The ends of the chains are secured substantially in a common planeand the length of each chain is sufficiently long that it hangs loosely when the outer ring is in a neutral position relative to the stationary, main support body.
REFERENCES:
patent: 2701146 (1955-02-01), Warren
patent: 2781134 (1957-02-01), Weir et al.
patent: 3057646 (1962-10-01), Brumagim
patent: 3608826 (1971-09-01), Reinke
patent: 3648930 (1972-03-01), Brown et al.
patent: 3659627 (1972-05-01), Zimmerer et al.
patent: 3690343 (1972-09-01), Crane
patent: 3750953 (1973-08-01), Reinke
patent: 3782408 (1974-01-01), Martin
patent: 3784106 (1974-01-01), Ross
patent: 3951165 (1976-04-01), Seger et al.
patent: 3957291 (1976-05-01), Edling et al.
patent: 4095613 (1978-06-01), Townsend et al.
patent: 4186763 (1980-02-01), Ferguson et al.
Michalsky Gerald A.
Tumac Industries, Inc.
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