Thursday, July 1, 2010

Arthur L. Hawkesworth (1869-1925), Inventor of the Modern Drilling Machines

In the early 20s, Hawkesworth was a mechanic at the Anaconda Copper Mining Co.

He is famous as the inventor of mine drilling machine with a drill that can be overhauled. With its discovery, a drill could be made to remain productive by simply replacing the drill tip.

Before this discovery, an operator to drill an underground mine requires many drill stem length varied from 13, 20, and 26 m to finish all his work.

Over the years Hawkesworth observes that the conventional method, the worker must send a drill rod in various sizes to workspace in the basement. After a dull drill because it is used, this drill stem must be sent to the surface to be sharpened again.

On the day Friday, May 21, 1922, held a demonstration Anaconda Drilling Hawkesworth. All mine owners, managers, engineers and mechanics to attend these trials. The test result was satisfying all present.

Within two minutes, Bor Hawkesworth able to make a hole as deep as 520 and 560 mm in the granite. Conventional drill was only able to penetrate as deep as 240 mm with the same time.

Hawkesworth invention can produce large savings both in terms of time, cost and safety.

Time savings gained from increased drilling speed and increased efficiency because the operator can always work with a sharp drill bit without waiting for the drill rod sharpened. This is because the operator can directly replace a dull drill bit with the new.

Savings also come from not requiring another person to send a blunt drill stem to the surface and bring back that has been sharpened into underground mine areas.

Personal safety can also be enhanced by the loss of the number of accidents that occurred during the drill stem from transportation activities and to the work area.

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