US Patent: 5,944X
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Mortising
Mortising machine
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Patentee:
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| Abner Foster (exact or similar names) - Phillipstown, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 28, 1830 |
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Jeff Joslin
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Description: |
| Most of the patents prior to 1836 were lost in the December 1836 fire. Only about 2000 of the almost 10000 documents were recovered. For this patent, only the patent drawing is available. We have some second-hand information on the specification.From the July 1830 Journal of the Franklin Institute, page 18, in a listing of recent patents granted. "For an improvement in the Mode of Mortising, as in window sashes, doors, cabinet furniture, and the like; Abner Foster, Machinist, Phillipston, Worcester county, Massachusetts, April 29."The above named machine is very clearly described, and very perfect represented in the drawing; in its general structure it resembles a machine patented by Mr. John M'Clintic, Chambersburg, Pennsylvania, October 8th, 1827 (patent 4,896X). In that machine, the chisels were brought down, and raised, by means of a lever moved by hand; in the present, two treadles are employed, on operating on a chisel to the right, and the other on a chisel to the left, to finish each end of the mortise; the chisels are elevated by means of spring poles. The only parts claimed are 'the springs, and the treadles, and their application to the purposes of mortising.'" |
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