US Patent: 42,797
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Planing Machine for Metal
Improvement in Machines for Planing Iron
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Patentee:
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| William Sellers (exact or similar names) - Philadelphia, PA |
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Patent Dates:
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| Granted: |
May 17, 1864 |
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Joel Havens
"Vintage Machinery" entry for William Sellers & Co.
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Description: |
| The objects of my invention are, first, to effect the lifting of the tool from the work on the back-stroke of the planer in any position of the slide-rest; second, to provide a thorough protection to the wearing-surface of the slides from the chips or dirt incidental to the working of the machine; third, to insure a constant and uniform lubrication of the slides without undue loss of oil. All planing-machines for metal of improved construction are so arranged as to be able to adjust the feed for planing horizontal, vertical, or angular surfaces, and such planers are advertised as having positive geared feeds self-acting in all directions. The horizontal feed is in every case obtained from the motion of the saddle on the cross head, while the vertical and all the angular feeds are obtained from the slide-rest upon the saddle, which may be set vertically or have its line of motion adjusted to any angle with the cross-head. This, of course, necessitates the turning of a portion of the saddle on a center, and through this center the power to operate the downfeed is in most cases conveyed. In order to relieve the tool from needless wear during the back-stroke of the planer-table, it is hung in what is called an " apron," so adjusted as to allow the tool to swing loose on the backstroke of the planer-table, but to be held rigidly when cutting. In large planers, when the weight of the tool is great, and in all fine planing, this liberation of the tool is not sufficient of itself, but some arrangement must be added whereby the tool-point shall be actually lifted clear of the work on the back-stroke and dropped into place ready for the cut after the article to be planed has passed under it. By my invention I am enabled to lift the tool in every position of the slide-rest, and to do so from within the cross-head without interfering with any of the machinery for working the feeds, which, as I have before said, occupy the center about which the adjustable part of the saddle rotates.
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