Scheduled Maintenance
Please be advised that this website will undergo scheduled maintenance on the following dates: •
Tuesday 3rd December 11:00-15:00
During these times, some services may be temporarily unavailable. We apologise for any inconvenience this may cause.
Interior. Detail of head of steam cylinder and cut-out valves.
SC 355377
Description Interior. Detail of head of steam cylinder and cut-out valves.
Catalogue Number SC 355377
Category On-line Digital Images
Copy of EL 5698
Scope and Content Steam cylinder and cut-off valves (from above) inside Cornish Beam Pumping Engine, Prestongrange, East Lothian This Beam Pumping Engine was built in 1874. It is of a type once commonly used for draining mines, especially in Cornwall where its builders, Harvey and Company, were based. It was modified in 1895 to cope with larger shaft-pumps, and in use until 1954. The cylinder fills with steam which raises the piston. This rocks the beam, so lowering the shaft. Next, the valves cuts off the steam and release the pressure so that the beam rocks back. Source: RCAHMS contribution to SCRAN.
Permalink http://canmore.org.uk/collection/355377
File Format (TIF) Tagged Image File Format bitmap
Attribution: © RCAHMS
You may: copy, display, store and make derivative works [eg documents] solely for licensed personal use at home or solely for licensed educational institution use by staff and students on a secure intranet.
Under these conditions: Display Attribution, No Commercial Use or Sale, No Public Distribution [eg by hand, email, web]
