. Cranberries; : the national cranberry magazine. Cranberries. attached to the net in a way to prevent sUpping of the net along the cable. It was, however, attached to the upper cable by means of cable clamps, about 6 feet beyond each end of the boom. Joining of the two cables together beyond the ends of the boom insured equal tension on both the lower edge and upper edge of the netting. As mentioned earlier, the length of the lower cable, between the clamps, should be about 2 feet less than the length of the upper cable to reduce the possibility of the boom sUding up and over the berries. Ref
. Cranberries; : the national cranberry magazine. Cranberries. attached to the net in a way to prevent sUpping of the net along the cable. It was, however, attached to the upper cable by means of cable clamps, about 6 feet beyond each end of the boom. Joining of the two cables together beyond the ends of the boom insured equal tension on both the lower edge and upper edge of the netting. As mentioned earlier, the length of the lower cable, between the clamps, should be about 2 feet less than the length of the upper cable to reduce the possibility of the boom sUding up and over the berries. Referring back to the method of tying the cable to the netting, an alternate method that may be as effective as the nylon harness ties would be the use of split fishnet weights to anchor the cable to the net. The spUt weight could be crimped over the cable and a strand of the net much more readily than the tape and nylon tie can be installed. Separate lengths of tubing may have to be joined together to produce the desired length of boom. Some types of tubing may be available that are readily cemented together. However, the PVC used in the Experiment Station unit is not easily cemented. We were unable to produce a cemented joint that did not leak air. We finally resorted to hard coupUngs. We used a 2 inch length of thin wall tubing inside the plastic and a stainless steel strap-clamp outside. Electrician's tape was wrapped around the ends of the steel tubing before it was inserted into the plastic, to prevent the edges from cutting through the plastic. The metal coupUng was inserted into the end of one length of plastic tubing. Then the end of the other length of plastic tubing was stretched over the coupUng and first tube. Several layers of electrician's tape were then wrapped around the assembled coupling and the stainless steel clamp installed. The clamp was then wrapped with masking tape to protect the tubing from puncture by any sharp edges or ends of the clamp. One feature of
Size: 1554px × 1608px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcontributorumassamherstlibraries, bookspons
