B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
144/25, 138/39
B66C 13/08 (2006.01) A01G 23/08 (2006.01) B66C 3/00 (2006.01) F15B 15/12 (2006.01)
Patent
CA 1302843
ABSTRACT A rotator for crane-mounted working implements comprises a housing (7) swingably connectible with the tip of the crane via a joint, and a pivot shaft (8) connectible with the working implement and pivotal rela- tive to said housing by means of at least one vane or flap (10) operating in a chamber and dividing said cham- ber into two operating chambers which can be supplied with, or evacuated of, hydraulic medium via two first ducts (12) provided in said housing, said pivot shaft including second hydraulic medium through-ducts (17, 17') opening into annular hollow spaces (16, 16') in a swivel connection (15) incorporated in said housing. Between said first ducts (12) in the housing and the annular hollow spaces (16, 16') of the swivel connection (15), branch ducts (20) are provided for establishing communication between said first and said second ducts 12, 17) for supplying hydraulic medium to the rotator working chambers via said shaft (8), thereby eliminating the need for any hydraulic medium connection on the outside of the rotator housing.
585662
Indexator Aktiebolag
Mcfadden Fincham
LandOfFree
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