Search results
Results from the WOW.Com Content Network
In civil engineering, concrete leveling is a procedure that attempts to correct an uneven concrete surface by altering the foundation that the surface sits upon. It is a cheaper alternative to having replacement concrete poured and is commonly performed at small businesses and private homes as well as at factories, warehouses, airports and on roads, highways and other infrastructure.
Self-levelling may refer to: Self-levelling suspension; Self-leveling paint; Self compacting concrete; Self-leveling compound This page was last edited on 30 ...
Self-leveling concrete was invented in 1952 by Axel Karlsson from Sweden. The first product was a combination of wood glue, fine sand and cement with additives. [1] It was called flytspackel, which directly translates to "floating putty". The term self-leveling can be traced back to a patent applied by the company Lafarge in 1997. [2]
This reduces the need to set the instrument base truly level, as with a dumpy level. Self-levelling instruments are the preferred instrument on building sites, construction, and during surveying due to ease of use and rapid setup time. A digital electronic level is also set level on a tripod and reads a bar-coded staff using electronic laser ...
Levelling or leveling (American English; see spelling differences) is a branch of surveying, ...
[8] [9] This early attempt was an important step on the road to self-leveling, even if a full load would cause the whole car to lower evenly, rather than maintain height. In 1957, Cadillac introduced the Eldorado Brougham, a Rolls-Royce Silver Cloud competitor, featuring a new Air suspension with a self leveling feature. [10]
A Philadelphia rod is a level staff used in surveying.The rod is used in levelling procedures to determine elevations and is read using a level.. A Philadelphia rod consists of two sliding sections graduated in hundredths of a foot.
The Witte Iron Works was a maker of hit and miss engines. The company was started in 1870 by August Witte in Kansas City. His son Ed Witte built the company's first crude gasoline engine in 1886. In 1894 gas engines would be the company's primary focus. [1] They made the Witte's Junior Headless engine, Witte portables, and a Dragsaw. In 1911 ...