Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra
Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra
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In our eReader you can find the full English version of the book. Read Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra
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In such case one of two devices is available: either place the cradles over the ends of the main beams, in which case the whole stress on the latter has to be sus- tained by bolts ; or abut the main beams against the perpendicular faces of the cradles and rely on bolts and rivets. But lightness as well as strength is required in a crab and traveller, even more than in a crane. The dead weight of the crab and traveller is nearly always greater than that of the load to be lifted. Hence, while amp...le strength and stiffness should be provided, the minimum of weight consistent with stability should also be secured. Some travellers are much heavier than they need be, not because they are unnecessarily strong, but owing to bad designing and injudicious arrangement of material.
In another class of crabs and travellers driven by steam, the engine and boiler are located in a building elsewhere, and the power is transmitted by means of a longitudinal line of rhafting running TRAVELLING CRABS. 47 down one wall of the shop, in a line v/ith the fixed gantry.
What to read after Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra?
You can find similar books in the "Read Also" column, or choose other free books by Paul N Paul Nooncree Hasluck to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In such case one of two devices is available: either place the cradles over the ends of the main beams, in which case the whole stress on the latter has to be sus- tained by bolts ; or abut the main beams against the perpendicular faces of the cradles and rely on bolts and rivets. But lightness as well as strength is required in a crab and traveller, even more than in a crane. The dead weight of the crab and traveller is nearly always greater than that of the load to be lifted. Hence, while amp...le strength and stiffness should be provided, the minimum of weight consistent with stability should also be secured. Some travellers are much heavier than they need be, not because they are unnecessarily strong, but owing to bad designing and injudicious arrangement of material.
In another class of crabs and travellers driven by steam, the engine and boiler are located in a building elsewhere, and the power is transmitted by means of a longitudinal line of rhafting running TRAVELLING CRABS. 47 down one wall of the shop, in a line v/ith the fixed gantry.
What to read after Builders Hoisting Machinery Simple Lifting Tackle Winches Crabs Cranes Tra?
You can find similar books in the "Read Also" column, or choose other free books by Paul N Paul Nooncree Hasluck to read onlineMoreLess
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