River, Railway and Ravine

Foot Suspension Bridges for Empire

Inbunden, Engelska, 2015

Av Douglas Harper

299 kr

Tillfälligt slut

From their mid-nineteenth-century fencing business the Harpers of Aberdeen developed a unique system of suspension that allowed their light foot suspension bridges to be relatively rigid. The Harpers’ innovative work overcame the disadvantages of this type of bridge and was of considerable benefit to those who relied upon them.

Produktinformation

  • Utgivningsdatum2015-09-08
  • Mått257 x 235 x 20 mm
  • Vikt996 g
  • FormatInbunden
  • SpråkEngelska
  • Antal sidor168
  • FörlagThe History Press Ltd
  • ISBN9780750962131