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Turning is a term used when referring to moving the level to take an elevation shot from a different location. To "turn" the level, one must first take a reading and record the elevation of the point the rod is located on. While the rod is being kept in exactly the same location, the level is moved to a new location where the rod is still visible.
The Fell All-Way precision level, one of the first successful American made bull's eye levels for machine tool use, was invented by William B. Fell of Rockford, Illinois in 1939. [2] The device was unique in that it could be placed on a machine bed and show tilt on the x-y axes simultaneously, eliminating the need to rotate the level 90 degrees.
The Y level or wye level is the oldest and bulkiest of the older style optical instruments. A low-powered telescope is placed in a pair of clamp mounts, and the instrument then leveled using a spirit level, which is mounted parallel to the main telescope. The term dumpy level (also builder's level) endures despite the evolution in design. They ...
By the late 1800s, Grand Rapids was a major hub for furniture production. In 1874, Charles R. Sligh Sr. began working for the Berkey & Gay Company as a salesman. [2] In 1880, he decided to strike out on his own, and raised $10,500 to incorporate Sligh Furniture Company. The company purchased a plot of land and constructed a 15,000 square foot ...
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The Kalamazoo Manufacturing Company located in Kalamazoo, Michigan, was a railroad-equipment manufacturer and, later, a materials-handling company, that was founded in 1883 and closed in the 1990s. It made four passenger vehicles for use at the 1964-65 New York World's Fair .
The Lawrence and Chapin Building', also known as the Vermeulen Furniture Building, is a commercial building located at 201 North Rose Street in Kalamazoo, Michigan. It was listed on the National Register of Historic Places in 1983.
In 1914 and 1915, the Forestry Quarterly published a series of articles on the use of the Abney level. [6] [7] [8] These tutorial articles remain useful today, but the primary reference for usage is the 1927 Abney Level Handbook. [3] The Abney level is typically used at the eye height of the surveyor, either hand-held or mounted on a staff at ...