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Title: |
1893 Article - Adjustable bevel bandsaw |
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Source: |
The Manufacturer and Builder, Vol. 25, No. 4, April 1893 |
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Insert Date: |
2/6/2005 9:13:00 PM |
Here is the article text, as transcribed by Tom Moore. Thanks Tom!
"The accompanying cut represents a right-handed machine, designed to avoid the difficulties encountered in guiding and holding work on inclined tables. The special features of the machine will be understood from the following description:
"It has a tubular or hollow body, combining great strength with moderate weight. The wheels are covered with rubber, vulcanized upon them, and not liable to come off, as it is when cemented on. The upper wheel can be angled while in motion, and from the front of the machine. The tension of the saw is maintained by a rubber spring, which has demonstrated itself to be superior to a weight in its ability to yield instantly when a chip gets between the saw and the wheel, and in not needing separate adjustments.
"Whenever any change of saw is mad, one and the same movement adjusts the upper wheel to the length of the saw, and produces any required degree of tension. The loose pulleys are self-oiling. The machine is provided with a non-friction band-saw guide, which has proved highly satisfactory in service.
"The saw can be inclined from 0 deg. to 45 deg. by turning a single hand-wheel, it being unnecessary even to clamp the parts in place, as all remain locked in any position. When a varying bevel is desired, as for shipwork, it can be produced by turning the hand-wheel while the work is being fed to the saw. The table is of iron; when used for heavy work, such as ship timbers, the table is provided with rollers.
"Diameter of wheels, 40 inches; height of sawing space, 16 inches; total height, 8 feet 6 inches; width, when set at 45 degrees, 8 feet 9 inches; depth, 4 feet; weight, about 2000 pounds; loose and tight pulleys, 16 inches in diameter, for a 4 inch belt.
"The machine is specially adapted for the use of coffin-makers, ship-builders, pattern shops and chair factories. Several of these machines are in use by the United States government.
"The manufacturer is P. Prybil, 521-533 West Forty-first Street, New York." |
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