y out and support the pattern for the hub in either case. and one blade. For quite small propellers complete patterns are commonly (3) Out of thin sheet metal cut a triangle similar to POF, employed, and insure the maximum rapidity of production. For Fig. 1, and bend the same so that the side… … several propellers of the same dimensions and form are to be built, it will be advantageous to have a pattern; where only one (4) Lay this on the hub with side similar to OP parallel to the axis of the hub, in which position the line similar to PF will give the intersection of the blade surface…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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