. Cranberries; : the national cranberry magazine. Cranberries. wheel, stalling it and permitting the drive wheel on the opposite side to drive the tug in the desired direc- tion. In Figure 1, a board extends diagonally across the front of the tug. It extends forward and to the right in the photograph a sufficient distance for the tip of the board to touch the shore without the drive- wheel getting in the shore ditch when the tug is traveling parallel to the shore. The purpose of the board is to plow the berries away from the shore and shunt them into the boom as it is being towed by the tug. T
. Cranberries; : the national cranberry magazine. Cranberries. wheel, stalling it and permitting the drive wheel on the opposite side to drive the tug in the desired direc- tion. In Figure 1, a board extends diagonally across the front of the tug. It extends forward and to the right in the photograph a sufficient distance for the tip of the board to touch the shore without the drive- wheel getting in the shore ditch when the tug is traveling parallel to the shore. The purpose of the board is to plow the berries away from the shore and shunt them into the boom as it is being towed by the tug. The framework attaching the board to the tug is easily reversed to permit booming in either direc- tion along the shore. The pipe above the plow-board is no longer included in the design. It was used in an unsuccessful attempt to move the berries a few inches away from the shore with a blast of air, to reduce the number of berries missed on the first pass. The cost of constructing the tug could vary widely. A rough esti- mate, hopefully on the high side, of the cost of materials to construct the tug, using all new materials, except possibly the wheels, is as follows: Power unit (tractor or lawn- mower)-$600, sheet metal-$25, aluminum framework-$80, power transmission components (chain, sprockets, bearing & wheels)-$200. I shall not attempt to estimate the cost of assembly of the com- ponents. A little creativity may produce a tug for considerably less than the above costs. One grower mounted a small, used garden tractor on a plywood bed and attached it to a 16' boat. All that he purchased, was the aluminum for the framework and the chain, sprockets and bear- ings to drive the wheels. This kind of ingenuity should make construc- tion of a relatively low-cost tug possible. Fig. 4. Cranberry-Boom-Tug minus float, showing power unit drive- wheels and drive-wheel frames. u^ |£=*| H^ 7T VO/ /^C""" ^^m rrp^ •^ !3 FLOAT. ENCASED IH 2«0A. MCTAL -rHAMt-ANCMOII- »OL
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