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Title: |
1911 Article-John H. Storey & Co., Central Thrust Radial Drilling Machine |
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Source: |
Machine Tools Commonly Employed In Modern Engineering Workshop, V2, 1911, pgs. 31-32 |
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Insert Date: |
5/2/2020 8:55:55 PM |
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Another interesting machine, introduced by John H. Storey & Co., of London, is illustrated in fig. 257. On the end of the radial arm is mounted a turret head in the several sockets of which can be mounted various sizes of drills or different tools such as taps and reamers. By suitably rotating the turret any one of the tools can be brought into position, and on certain classes of work, on which a series of drilling and other operations has to be performed, the time required to change the tools is considerably reduced. It will be seen that the thrust of the turret acts centrally on the arm, which is also disposed symmetrically on either side of the central column. The turret is mounted on a balanced slide, adjustable in the vertical direction, and the arm can be raised and lowered in the usual way. It will be seen that it is mounted, not upon a turned sleeve as in the previous examples, but upon machined guides on the face of the sleeve, an arrangement which permits of any wear being readily adjusted. Instead of moving the turret along the radial arm to suit the work, the radial arm itself can be moved lengthwise within guides on the central carrier, which is adjustable vertically on the sleeve, as already described. The machine is driven from a constant-speed pulley through a change-gear box mounted on the rear end of the base-plate at the foot of the column. |
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1911 John H. Storey & Co., Central Thrust Radial Drilling Machine
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