. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. igtail finished. We pass the ends of the strands, one under theother, in the same way as if we were making a pudding splice, thusbringing it in a line with the rope, to which it is seized fast, and the endscut off. 21. Scull pigtail; instead of holding the ends by a t
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. igtail finished. We pass the ends of the strands, one under theother, in the same way as if we were making a pudding splice, thusbringing it in a line with the rope, to which it is seized fast, and the endscut off. 21. Scull pigtail; instead of holding the ends by a tie, we interlacethem again, as in No. 16, the one under the other. 22. Pigtail or larks nest. 23. Two-strand knot. 521. BELL BUOY. A large bell is mountedin a frame on a floating buoy. A radial groovediron plate is made fast to the frame under the belland close to it, on which is laid a free cannon the buoy rolls on the sea, this ball rolls on theplate, striking some side of the bell. In this design a very small roll of the seamakes a constant ringing of the bell. 522. THE WHISTLING BUOY. The hanging tube below the float is open at thebottom. In the vertical motion of the floatand tube bv the waves, the water in the tubereacts as a piston, drawing in air at the top ofthe buoy and compressing it to blow NAVIGATION, VESSELS, MARINE APPLIANCES, ETC. 205
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