US Patent: 55,723
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| Machine for Planing Metal
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Patentee:
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| William Sellers (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 19, 1866 |
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Joel Havens
"Vintage Machinery" entry for William Sellers & Co.
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Description: |
| In nearly all planing-machines for metal the work is fastened to a table sliding back and forth on ways which control its position. To the ways are secured uprights, and to the uprights are fastened what is termed the "crosshead," this being the cross-slide of the compound slide-rest holding the planing tool. The crosshead is adjusted upon the uprights at varying distances above the table to suit the size of the work to be planed. Some few machines have been built with the cross-head attached to slides moving and guided in ways fastened to walls of masonry, motion being communicated to the slides and cross-head by means of screws or chains attached to and supported by the ways, and the materials to be planed resting on platforms in the pit formed by the side Avails. The crosshead having no vertical adjustment, the platforms which support the work are raised or depressed to suit the varying heights of the material. A modification of this form has also been employed that is to say, in order to decrease the depth of the pit, short uprights have been used, sliding in ways on top of the walls, the cross-head having an adjustment vertically upon these; but all machines of this class have heretofore used platforms to support the material to be operated upon, which are either adjustable in height to suit the varying heights of the material, or require that this, when small, should be elevated above the platform, to come within reach of the planing tool. Supposing the disadvantages overcome in this form of machine, it would be found well adapted to the heavier class of work, as it "would take up much less room, the moving parts could always be of the same weight, and generally much lighter than the work to be operated upon, so that it would require less power to drive it. The object of my invention is to overcome the disadvantages in this class of planing-machines and the nature of it consists in supporting the work to be operated upon on a stationary platform and the cross-head upon uprights or posts, as in machines of ordinary construction; but these uprights are so arranged as to slide in ways provided for that purpose in the sides of the stationary platform, so that the slides which govern the position of the tool are below the work to be operated upon in place of above it, as heretofore, and the cross-head can be elevated and depressed upon the uprights to suit the varying heights of the work, in place of elevating and depressing the platform.
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