Framed Prints
Framed Print of Wirtz Spiral Pump
A spiral pump is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet. The outlet pipe is fixed to a engine or animal which is capable of rotating the pump quickly. Due to this rotation, water is picked up by the outer cavity and pumped upwards in the hose. In a publication by Thomas Ewbank entitled, Hydraulics (16th edition, 1876, figure 165). He attributes a drawing of a section of a spiral pump to H. A. Wirtz who created the pump in order to provide water for a factory near Zurich. Little is know about Wirtz other than he was from Zurich and was a pewterer. It is likely that he knew of the design of other devices such as the Archimedes screw and the Persian wheel. It has been suggested that owing to his profession, he would have had the know how to create a tubular spiral from metal. While the picture referenced in Ewbank's publication cites a date some time during 1876, it has been said that the device was originally created by Wirtz in 1746. © New York Public Library / Science Source
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Media ID 47336734
18th Applied Designer Device Devices Eighteenth Engineering Equipment European Inventor Inventors Lift Machine Machinery Machines Pump Pumps Spiral Spirals Swiss Tool Tools
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 12.1cm x 24.4cm (4.8" x 9.6")
Estimated Product Size is 31cm x 36cm (12.2" x 14.2")
