Environment, Energy and Climate Change
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Chinese Chain and Washer Pumps
Chinese Chain and Washer Pumps contains twenty one versions of the chain and washer water lifting device, displayed at the 1958 Peking Agricultural Exhibition, China. Each version of the pump was designed and built by separate communes, using local materials, skills and tools.
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A Manual on the Hydraulic Ram for Pumping Water
Part One contains details of how to make and maintain a small hydraulic ram on a suitable site, whilst Part Two takes a more technical look at ram performances and design considerations and also contains a useful bibliography.