US Patent: 409,743
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| Box-blocker
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Patent Dates:
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| Applied: |
Dec. 26, 1888 |
| Granted: |
Aug. 27, 1889 |
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Jeff Joslin
Vintage Machinery entry for Gail, Bumiller & Unzicker
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Description: |
| "This invention relates to machines for trimming the ends of wooden boxes to be flush, square, and smooth; and it is the object of this my invention to provide such a machine in which the planing-knives are secured in a rotating disk with their cutting-edges slightly projecting and each planing-knife arranged to be automatically oscillated for maintaining its cutting-edge on an angle of forty-five degrees to the vertical line during its segmental course of travel by the box to be planed..." |
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