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jeffrey mining machinery company

  • Jeffrey Manufacturing Company Wikipedia

    The Jeffrey Manufacturing Co. began as the Lechner Mining Machine Company in 1877, and was purchased by Joseph Andrews Jeffrey in 1888. The company's primary market was the mine industry, and it began business on a fouracre site. By the late 1940s, the site had grown to 48acres, including 40 buildings.

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  • History of the Jeffrey Mining Corporate Center State

    A Short History of the Jeffrey Mining Corporate Center. 1876 The Lechner Mining Machine Co. was incorporated to build mining machinery. At that time, the slowest part of the mining cycle was the undercutting, which required a miner to lie on his side for hours at a time, digging out a six inch thick cut, 4 feet deep, across a 10 to 20 foot wide face.

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  • Jeffrey Mining Machinery Company Home

    Jeffrey Mining Machinery Company, Columbus. 233 likes · 20 talking about this · 11 were here. The continuous search for Jeffrey employees goes on, along...

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  • Letcher T. White, Appellee, v. Jeffrey Mining Machinery

    This is an appeal from the United States District Court for the Eastern District of Kentucky. Plaintiffappellee White sued Jeffrey Mining Company, et al. ("Jeffrey") for infringement of claims 1, 12, and 13 of his United States Patent No. 3,524,680 1 for a mining machine. After a jury trial, the patent claims in issue were held valid and found infringed.

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  • Our History The Jeffrey Company

    At that same time Dresser Industries in Dallas, Texas, was interested in diversifying its operations (which heretofore had been focused in the oil industry) by acquiring a maker of mining machinery. In 1974 Dresser purchased Jeffreys operating assets for cash. The Jeffrey Company invested that cash in a welldiversified portfolio of

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  • The Jeffrey Manufacturing Company Jeffrey Mining

    It operated several subsidiaries, including Jeffrey Manufacturing Company and Jeffrey Mining Machinery. Other Jeffrey entities documented in the Archives include the JeffreyBakstad jaw crusher, JeffreyHamilton Ground Storage and Reclaiming Machine stockpile

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  • Home The Jeffrey Company

    In 1876 Joseph A. Jeffrey and others formed a partnership to build the worlds first mining machines. That business eventually became The Jeffrey Manufacturing Company. The Company later expanded by acquiring Galion Iron Works, a maker of roadbuilding machinery. In 1974 the Company sold its operating assets to Dresser Industries.

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  • Jeffrey Machine, Inc. Driven by Precision

    Thank you for visiting our website. Since 1977, Jeffrey Machine has offered a complete line of auger tooling, including core barrels, drilling and cleanout buckets as well as other specialty drilling tools in addition to specialty parts and truck accessories.

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  • jeffrey specialty equipment corp.: a Mining People

    jeffrey specialty equipment corp.: a history of mining as told by the company historian keith patterson. By Art Sanda. In any other industry, Keith Patterson of Jeffrey Specialty Equipment Corporation would be an anomaly butas perhaps is indicative of what has taken place in the mining industry over the years in operating companies and

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  • Jeffrey Mining Machinery Company Home

    Jeffrey Mining Machinery Company added 5 new photos to the album: Leander Brookins at Jeffrey Mining Machinery Company. August 13 at 5:50 AM · The number reason for putting this page together was the hope that I could connect many people from the

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