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Title: |
1872 Article-Ames Manufacturing Co., Lathe Tool Rest |
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Source: |
Scientific American, V 27 #18, 02 Nov 1872, pg. 274 |
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Insert Date: |
3/12/2013 9:11:39 PM |
IMPROVED TOOL REST.
The principal defect of the ordinary form of tool rest is its difficulty of adjustment. It is fitted with no appliances for making slight changes in its position, particularly such as are constantly required in the execution of fine work, so that for every needed alteration, in the point of application of the tool, considerable time must be wasted in properly setting the rest. The device herewith illustrated, the invention of Mr. C. F. Hadly, overcomes this disadvantage in a very simple and effective manner.
Fig. 1 is a perspective, and Fig. 2, a sectional view. The tool is shown held in a vertical slot in the upright standard by means of a screw bolt from above. This standard fits in a mortise in the upper portion of the device marked A, in which it freely moves, so that its lateral position may thus be adjusted. Pivoted on its end, as shown, to the interior of the metal sleeve, B, is an arm, C, the upper extremity of which is similarly attached to the movable piece, D. Through the latter, a thread is cut in which works the thumbscrew as represented.
The upper portion, A, of the instrument extends down inside the sleeve, B, in which it slides freely. It is evident that, by turning the thumbscrew, the piece, D, will be moved to the right, the arm, C, will be raised to a nearly perpendicular position, and the upper portion, A, carrying the tool, will be lifted. Opposite motion will, of course, take place by a corresponding reversal of the movement of the screw. The height of the tool in the rest may thus be nicely graduated to any desired position, without necessitating the removal of either tool or rest from the machine.
For further information address the manufacturers, the Ames Manufacturing Co., Chicopee, Mass. |
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1872 Ames Manufacturing Co., Lathe Tool Rest
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