value beyond 400 feet in depth. This, how- There are four of these sheaves at each anchorage and center of the river, so that the maximum depth on each trestle, so that four strands may be in the ever, was much greater than was needed in the Niagara River. obtained, as the instrument only records… … lar intervals. To provide against the undulation and The Two Men Are Standing on a Pair of the 6 x 12 Inch Floorbeams Which distortion of the platforms by heavy winds, four storm Support the Footways. They Are 155 Feet Above the Kiver. cables, each 1% inches in diameter, are strung be- neath the…
Manufacturers · Patents · Center · American supplement · Scientific American · Air brake · Whirlpool rapids · Sluice box · Van winkle · Producer gas · Gas producer · Gas engines · Naked eye
Internet Archive · Public domain (published before 1931). Free to use for anything.
