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Irwin was founded in 1885 in Martinsville, Ohio as the Irwin Auger Bit Company by Charles Irwin, a pharmacist. Irwin had bought the rights to a solid-center auger bit from a local blacksmith. [3] In 1924, another blacksmith, Danish immigrant William Petersen of DeWitt, Nebraska, invented the first locking pliers [4] and named them Vise-Grips. [5]
The company claims it was producing 2000 sabres a week by 1839 for use in various wars. By the 1860s the company had fractured with a branch of the family emigrating to North America and setting up plants in Canada, Mexico and The United States. The German and North American factories produced similar knives and used the "Tree Brand" trademark.
A skid-steer loader with an earth auger attachment. Construction drill auger. Hand-powered earth augers are typically used to plant saplings and trees or to set up posts for fences or other ends. [7] Large mechanized earth augers, called drilling rigs, are used to make holes for piles destined to be deep foundations or retaining wall. [citation ...
In 1990, the company moved to Clackamas, Oregon, to be closer to existing knife production companies in that area. [1] [2] As part of the process of moving their production from outside vendors to in-house production facilities, the company moved again in 1996, to their own 35,000 square foot facility in Oregon City, Oregon. [3] [4]
The Gerber/Emerson Alliance: The first automatic knife made by either company is based on the profile of Emerson Knives, Inc.'s earlier Raven knife design and is an issued item to certain military units under the NSN (NATO Stock Numbers): 5110-01-516-3243 and 5110-01-516-3244.
Study of a man using an auger, from The Seven Sorrows of the Virgin, by Albrecht Dürer, c. 1496. The classical design has a helical screw blade winding around the bottom end of the shaft. The lower edge of the blade is sharpened and scrapes the wood; the rest of the blade lifts the chips out of the way.
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Before boring machines were invented, carpenters used hand-powered augers to bore holes. Most common were T-handled augers. The shape of the drill bits changed over time, with the spoon bit and shell bit being common before the invention of the spiral or twist bit in 1771 [1] which removes the cuttings as it turns. The exact origin of this ...