Gå direkt till innehållet
River, Railway and Ravine
Spara

River, Railway and Ravine

Författare:
inbunden, 2015
Engelska
Lägsta pris på PriceRunner

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. John Harper was one of the first to employ steel wire rope, now universally used. The Harpers’ innovative work overcame the disadvantages of this type of bridge and was of considerable benefit to those who relied upon them. Harpers built over sixty such bridges throughout the UK and the British Empire between 1870 and 1910, but until now they have been little documented. The author, John Harper’s great-grandson, searched the globe to find and cross those still in use. Here he tells the story of his ancestors, his journeys and the communities the bridges served.

Undertitel
Foot Suspension Bridges for Empire
Författare
Douglas Harper
ISBN
9780750962131
Språk
Engelska
Vikt
446 gram
Utgivningsdatum
2015-09-08