Highfield lever Highfield lever A Highfield lever is a lever device which allows tension to be rapidly set up in a wire and equally rapidly released to the required extent. It is frequently used in sailing boats where tension in some part of the rigging needs to be adjusted to a pre-set amount as the wind impinges on one side of the sails or the other. It is typically used in running backstays (runners). To make it work, the backstay is led through a block or fairlead along the deck to a two-legged, second order lever mounted with its fulcrum above deck
Darcy Lever at Darcy Lever. Darcy Lever had little industry other than the coal mining. Many inhabitants not involved in coal mining found employment on the Manchester Bolton and Bury Canal or in the textile mills of Bolton and Farnworth. Today, that situation still exists with most of the working population commuting out of Darcy Lever to work in Bolton, Manchester and other nearby towns. Darcy Lever was not worked for coal as much as nearby Little Lever due to the fact it lay further off the Irwell Valley fault which had uplifted the coal measures making them easier to work. There