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Title: |
1834 Article-James Hamilton, Sawing & Boring Machine |
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Source: |
Mechanics' Magazine, and Journal of the Mechanics' Institute, V3, 1834, pg. 202 |
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Insert Date: |
6/3/2019 9:59:09 PM |
Hamilton's Sawing and Boring Machine.—This machine is designed for sawing and boring wood or timber, and is claimed by Colonel Hamilton in his specification to be “an improvement in the mode of sawing felloes of wheels, circular and curved segments, mitre joints, tenons, and also boring of felloes and hubs of wheels;” and generally for sawing circular, curved, and plain surfaces.
The machine is propelled by a two horse-power steam engine. Animal or water-power may be applied for the same purpose. The particular form required is sawed out of the timber with perfect accuracy and great expedition, by means of one or more thin narrow saws moving up and down. There is also belonging to this machine a horizontal saw for cutting segments of circles their proper lengths, and with proper inclinations for joints, tenons, &c. &c. Hubs of carriages are bored with perfect precision. All these operations are affected by the changing position of the material, accommodating itself as it comes in contact with the saw or auger, so as to receive the exact form, inclination, &c. required. Everything is done, without marking or laying out, with mathematical accuracy by means of scales, which are distinctly laid down on the machine.
The machinery which guides and steadies the material in its movements may be readily varied, so as to form segments of wheels of greater or less dimensions; and the boring may also be more or less inclined. The scale indicates the exact position which the part of the machine that guides the material required to form a wheel, for instance, of greater or less circumference. Slats and legs of chairs may be made of various lengths, and thicknesses, and shapes, as fashion or utility may dictate. This machine affords a happy specimen of labor saving and may be advantageously applied to a variety of useful purposes. It occupies but little space, only a part of a small room. No skill is required in using it. A mere laborer, or a boy, can learn in a few hours to use the machine, and to produce the article as perfect as the most skillful machinist. Like many other labor-saving machines, it performs that part of the labor which the accuracy and strength of the human hand are incompetent rapidly, and with precision, to perform; it, in fact, does the work which is the most difficult and toilsome to the laboring manufacturer. The expedition with which materials of small value, and with very little waste, are converted into articles of comparatively much greater value is entitled to particular notice. Chair backs sawed from our native curled maple are worth from eight to twelve and a half dollars per hundred. By the aid of this machine, which costs only about three hundred dollars, a common laborer may do the work of twenty or thirty mechanics. The merit claimed by Colonel Hamilton consists chiefly in the facility and accuracy with which the material is adapted to the saw, so as expeditiously and uniformly to produce the exact form which is wanted.
US Patent: 7,560X
http://www.datamp.org/patents/displayPatent.php?number=7560&typeCode=3 |
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