US Patent: 5,476X
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| Machine for cutting veneers
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Patentee:
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| Caleb B. Burnap (exact or similar names) - Belfast, ME |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 01, 1829 |
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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 drawing is available.From Journal of the Franklin Institute Vol. 5, Aug. 1829 pg. 120:"For Machinery for Cutting Veneers in one Continuous Sheet, called 'Burnap's Veneer Cutter;' Caleb B. Burnap, Belfast, Waldo county, Maine, May 1."The log to be sawed is fixed so that it may be made to revolve on centres like a piece of wood to be turned in the lathe; and, in this situation, is actually turned so as to become truly cylindrical. Circular saws, running upon the ends of mandrels, are placed in a row, with their faces in one plane, and their peripheries nearly touching, so as to cut the cylindrical log longitudinally and tangentially. A traversing motion is given either to the log, or to the frame upon which the saws are placed, sufficient to unite the cuts of the respective saws in one horizontal line."The machinery to cause the log to revolve with any speed desired, and also to cause it to advance upon the saws, so as to preserve a regular thickness in the veneer, and to vary this thickness as may be desired, is, of course, provided, but, need not now be described."In sawing mahogany veneers, it is found that the mottle, or curl, is not generally developed by a continuous veneer all round the log. There is, therefore, described, one modification of the machinery, which is intended to cut the veneers off in segments of a large curve."The veneer as it is cut is turned up out of the way of the saws and of their mandrels, by rollers constructed for that purpose."The claim is to the particular methods by which the foregoing objects are effected. This kind of saw mill we believe to be it is now in successful operation."The only example with which we are acquainted of producing a similar effect, was the cutting of a large sheet of ivory, probably 16 inches square. This was done by Mr. Joshua Shaw, of Philadelphia, five or six years since. The tusk was sawed round, in Mr. Burnap's manner, but by what kind of saw, and how arranged, we are not informed."From the 1886 book, "Federal Decisions, Vol. XXV. Patents, Copyright and Trade-marks", this patent was involved in the following litigation. "Burr v. Gregory, 2 Paine, 426." |
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