A History of Technology: The industrial revolution, c. 1750 to c. 1850Clarendon Press, 1954 |
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Page 186
... beam had to be replaced by some mecha- nism that would transmit a force in either direction . Watt's first notion was to extend the piston - rod by a rack which would gear with a toothed arc on the end of the beam . This was a clumsy ...
... beam had to be replaced by some mecha- nism that would transmit a force in either direction . Watt's first notion was to extend the piston - rod by a rack which would gear with a toothed arc on the end of the beam . This was a clumsy ...
Page 405
... beam is made of a strong steel blade turned on edge [ 22 ] ( figure 227 ) ; the hardened steel knife - edge rests on less hard steel bushes so that the edge is not worn down . The beam is supported on a strong brass column . For thirty ...
... beam is made of a strong steel blade turned on edge [ 22 ] ( figure 227 ) ; the hardened steel knife - edge rests on less hard steel bushes so that the edge is not worn down . The beam is supported on a strong brass column . For thirty ...
Page 485
... beams ( p 475 ) . The early beams were nearly rectangular in section ; but proof - tests soon showed that extra metal , pro- vided at the lower edge to give a better support to the skewback of the arch , also increased the strength of the ...
... beams ( p 475 ) . The early beams were nearly rectangular in section ; but proof - tests soon showed that extra metal , pro- vided at the lower edge to give a better support to the skewback of the arch , also increased the strength of the ...
Contents
GLASS by L M ANGUSBUTTERWORTH Director The Newton Heath Glass | 12 |
TELEGRAPHY by G R M GARRATT Deputy Keeper Department of Electrical | 22 |
FISH PRESERVATION by C L CUTTING Officer in Charge Humber | 44 |
Copyright | |
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agricultural beam became blast-furnace Boulton Boulton and Watt bridge Britain British built canal carbon carried cast iron chemical clay coal Coalbrookdale coke construction copper crops cylinder D. E. Woodall developed diameter driving E. J. HOLMYARD early eighteenth century engine England Europe fallow farming figure fish France French furnace Germany glass heat husbandry Ibid important improved inches increased industrial revolution industry introduced invention J. F. Horrabin John Smeaton later lathe London machine machinery manufacture mechanical metal method mill mineral mines Newcomen Newcomen engine nineteenth century obtained operation oxide Paris patent pipe piston plate practice produced pump river road rollers rotation Rotherham plough salt screw sewers shaft ships silk Smeaton smelting Staffordshire steam steam-engine steel stone sulphuric acid surface tion tuyère vertical ware water-wheels watermills Watt whales wheel wooden wrought iron