Ads
related to: rock lifting tongs
Search results
Results from the WOW.Com Content Network
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.
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.
Lifting a stone at Harri-jasotzaileak event in the Basque Country. Lifting stones are heavy natural stones which people are challenged to lift, proving their strength. They are common throughout Northern Europe, particularly Iceland (where they are referred to as steintökin), Ireland, Scotland, Basque Country, Faroe Islands, Wales, North West England centered around Cumbria, Switzerland ...
The prevalence of the stones in Shinto shrines and temples has led to speculation that rock-lifting was used for divining the future, [20] a practice known as ishi-ura (石占). [ 21 ] [ 22 ] The ease with which a petitioner lifted the stones indicated the likelihood of his preferred outcome occurring.
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 spring-loaded camming device (also SLCD, cam or friend) is a piece of rock climbing or mountaineering protection equipment. It consists of two, three, or four cams mounted on a common axle or two adjacent axles, so that pulling on the axle forces the cams to spread further apart.
Ads
related to: rock lifting tongs