Abstract: A two-piece safety mechanism for ceiling-mounted fans comprises a first and second cable. The first cable has a first fastener extending from a first end and a first connector extending from a second end. The first fastener is for operable association with a first fastening mechanism for securing the first cable to a fan. The second cable has a second fastener extending from a first end. The second fastener is for operable association with a second fastening mechanism for securing the second cable to a ceiling support. The second cable also has a second connector extending from a second end, which is releaseably attachable to the first connector to form a continuous cable. The claimed invention also provides for a ceiling fan having the two-piece safety mechanism for retaining the fan in close proximity to the ceiling support if its normal mounting apparatus should fail.

Abstract: The core barrel apparatus includes a wire line core barrel inner tube having a latch body main body portion and an inner portion threaded together to cooperatively provide a radial outer groove mounting a landing ring seatable on the drill string landing ring with the latches seatable in the drill string latch seat and a radial inner groove mounting a bushing surrounding the axial bore of the bypass channel for bypassing fluid between portions of the latch body on axial opposite sides of the latch body ring. The valving mechanism in the bore includes the bushing and may include a valve spring axially inwardly of bushing and a valve ball. The valve ball and bushing may be of a resiliency to permit the ball passing through the bushing under fluid pressure or prevent the ball passing through the bushing. Overcenter linkage connected to the latches is retractable by a retractor pin.