Claims
- 1. A skyline logging system for logging sloped timber-bearing terrain comprising;
- (1) a skyline cable that terminates at its upper end at an upper skyline tail-block that incorporates a pulley and, at its lower end, at a skyline base end for receiving logs;
- (2) a transverse tail-block support cable which terminates at its two ends at transverse-line anchors at separated elevated locations on elevated terrain located entirely above the upper end of the skyline cable and above the timber-bearing terrain to be logged, and which carries the tail-block by the tail-block pulley, providing support for the skyline cable;
- (3) skyline tail-block positioning means for controlling the location of the skyline tail-block along the transverse tail-block support cable during logging;
- (4) a log carriage mounted on said skyline cable for lifting a load of logs, said log carriage being positionable on the skyline cable by cable means extending to the skyline base end; and
- (5) a balloon connected to the skyline tail-block to carry a portion of the weight of the skyline cable system components.
- 2. A skyline logging system as in claim 1 further comprising a second balloon coupled to the log carriage to carry a portion of the carriage weight.
- 3. A skyline logging system as in claim 1 wherein the transverse-line anchors comprise:
- (a) rigid bars that penetrate into the ground and have protruding portions that extend above the ground;
- (b) encasing concrete positioned around the protruding portions of the bars and having an upper side portion;
- (c) an encircling sleeve extending around at least the upper side portion of the encasing concrete; and
- (d) coupling joining means coupling the encircling sleeve to the transverse block support cable.
- 4. A skyline logging system as in claim 2 wherein the transverse-line anchors comprise:
- (a) rigid bars that penetrate into the ground and have protruding portions that extend above the ground;
- (b) encasing concrete positioned around the protruding portions of the bars and having an upper side portion;
- (c) an encircling sleeve extending around at least the upper side portion of the encasing concrete; and
- (d) coupling joining means coupling the encircling sleeve to the transverse block support cable.
Parent Case Info
This is a Continuation-in-Part application of application Ser. No. 08/920,354 filed May 30, 1997 which in turn is a Continuation-in-Part of application Ser. No. 08/597,997 filed Feb. 7, 1996.
US Referenced Citations (5)
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
920354 |
May 1997 |
|
Parent |
597997 |
Feb 1996 |
|