US Patent: 198,211
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| Metal Turning Lathe
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Patentee:
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| John W. Post (exact or similar names) - New York, NY |
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Patent Dates:
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| Applied: |
Nov. 28, 1877 |
| Granted: |
Dec. 18, 1877 |
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Patent Pictures:
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Joel Havens
MJD Auctions
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Description: |
| Abstract:
It is well known to artisans and mechanics that in order to produce a perfectly-working lathe the parts thereof have to be made with the greatest accuracy, and the principal item of expense in the construction of such a lathe is the labor involved in truing up the bed and the bases of the head and tail blocks or puppets, and the rest thereof, so as to keep the centers of the puppets truly in line, no matter to what part of the length of the bed the puppets may be shifted.
The main object of my invention is to provide a cheaper and more expeditious means of truing up the bases of the puppets, and to absolutely insure the accuracy of their centers, irrespective of any irregularities in the surface of the lathe-bed, or, in other words, to provide a means wholly irrespective of the lathe-bed itself for keeping the centers of the puppets in line.
Claim:
In a lathe, a longitudinal guide-bar, upon which the puppets and the rest, each provided with means for independent attachment to the bed, are adapted to be shifted, whereby the centers of the lathe are kept truly in line, irrespective of the bed. |
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