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A modern cant hook. A log driver using a peavey. A cant hook or pike or a hooked pike is a traditional logging tool consisting of a wooden lever handle with a movable metal hook called a dog at one end, used for handling and turning logs and cants, especially in sawmills.
Tongs are a type of tool used to grip and lift objects instead of holding them directly with hands. There are many forms of tongs adapted to their specific use. Design variations include resting points so that the working end of the tongs does not come into contact with a bench surface. [1] The first pair of tongs belongs to the Egyptians.
The external lewis, kerb lifter or slab lifter is a type of lifting device used in the stonemasonry trade since Medieval times. The external lewis was originally shaped like a pair of scissor-tongs, and swung from a treadwheel crane. [3] This type of tong device has been known as dogs and the holes in the stone as dog holes for many centuries.
Pages in category "Lifting equipment" The following 27 pages are in this category, out of 27 total. ... Gin pole; H. Hoist (device) Hydraulic jack; J. Jack (device) L.
A crane for lifting heavy loads was developed by the Ancient Greeks in the late 6th century BC. [7] The archaeological record shows that no later than c. 515 BC distinctive cuttings for both lifting tongs and lewis irons begin to appear on stone blocks of Greek temples. Since these holes point at the use of a lifting device, and since they are ...
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower , and a boom hinged at its base to provide articulation, as in a stiffleg derrick.
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