Lewis Pin (block positioning / lifting tool pins) — FREE UK DELIVERY
 |
Lewis Pin (block positioning / lifting tool pins) — FREE UK DELIVERYFree mainland UK delivery (highlands and islands, and international will receive a delivery discount) UK manufacture. The split-pin lewis uses a scissor-like action to produce friction against the inside of a hole. The two legs, semicircular in section, lying side-by-side, and fit inside a hole drilled in the top face . This type of lewis seating is the simplest to prepare, requiring a single drilled hole. The pins are inserted into a hole drilled in the top of the stone and a crane or hoist can then be used to lift the block .As this is a positioning device only ropes or slings should be used to lift and move the stone.These can be removed from underneath the block whilst positioning with the lewis pins. A swivel positioned between hoist and pin will allow rotation. The lewis is liable to slip out of the seating if some of the weight of the stone is quickly changed (for example bumping or jerking).A straight lift is also essential to avoid unwanted stresses. If 2 pins are used a lifting bar is recommended between the pins to equally allocate weight The hole drilled should be a good fit. A loose fit will subject arms to excess stresses, The pins were made to imperial measurements and if possible imperial sized holes should be made -preferably with a diamond core drill. All pins are tested on manufacture at twice the load limit and will be provided with a certificate not more than 12 months old. For an additional £20 a current test certificate can be provided (allow 2 – 3 extra days for delivery) Free mainland UK delivery (highlands and islands, and international will receive a delivery discount) Please note - this is a lifting aid onlyAvailable in the following sizes.
Free mainland UK delivery (highlands and islands, and international will receive a delivery discount)
|
