rried by 734 foot deck trusses, and its brickwork or interior finish. blocking, generally of 14 x 14 inchescross section, the distribution of the underpinning and ways being weight is 127-7 tons. It ishoisted by a cable hoist, shown in the cuts. The weight to be moved was so and counter-weights are… … dinary system of blocks and falls and windlasses was ham Association of Engineers, Mr. Railings the author 'disearded in favor -of jack screws. Fourteen jack vary. They are accordingly distributed in 22 sections, mentioned. the following as the requirements of a good the uppermost weighing'3,600…
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