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Title: |
1903 Ad-H. B. Underwood & Co., Portable Joint Facing Machine |
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Source: |
Machinery Magazine Aug 1903 pg 3 & Feb 1903 pg 221 |
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Insert Date: |
7/12/2011 10:03:48 PM |
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PORTABLE JOINT FACING MACHINE—The portable machine shown herewith is one that should be found useful in railroad shops and in jobbing establishments doing repairs to steam e4ngines and boilers. It is a machine for refacing cylinder head joints, dome cap joints and similar parts that have becomes leaky in service and require machining before they can be made tight once more. The machine is made up of two disks, the upper one carrying a train of gearing and a slide on which is mounted the cutting tool, and the lower one the chucking screws for screwing out against the inner walls of the cylinder counterbore or the dome ring to hold the machine in position. Two of these screws are shown in the cut. Besides the gearing shown there are three reduction gears in the space between the two disks, to reduce the speed and to give power to drive the tool. The cutting tool is mounted on a steel slide, which may be fed out automatically, or by hand. The crank seen in the illustration is for quickly moving the tool to the required position, then the feed clutch is thrown in and the crank removed, the machine feeding automatically as the handwheel is turned. The machine may be driven by hand or power; when power is employed a pulley or coupling is substituted for the handwheel. Hand power is generally used, as the time required for facing one joint is so short that it does not usually pay to connect to any other source of power. H. B. Underwood & Co., Philadelphia, are the manufacturers. |
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1903 H. B. Underwood & Co., Portable Joint Facing Machine
1903 H. B. Underwood & Co., Portable Joint Facing Machine
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