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Title: |
1892 Article-G. A. Gray Co., Spiral-Geared Metal Planer |
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Source: |
American Machinist 11 Feb 1892 pgs 1 & 2 |
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Insert Date: |
12/19/2011 3:52:12 PM |
A New Spiral Geared Planer — We present on this page and on page 2 front and rear views of a new line of planers which has recently been brought out by the G. A. Gray Co., of Cincinnati, Ohio. Our illustration is of the smallest machine of this line, which is 30"x30"x6'. For the driving mechanism, the well-known Sellers system of spiral gearing is employed, there being a spiral pinion which engages directly with the rack, and has at all times eight teeth in working contact. The only other gears in the system are the bevel gears seen at the rear of the machine, which are made exceptionally heavy, and the pinion of rawhide, thus securing entirely noiseless action, smooth running and great durability.
Like all other "Gray" planers, the proportions of this machine are adapted to the heaviest work, the bed and platen being unusually deep, and the housings very wide and of the box form.
The two sides of the bed are bound together between the uprights, and for some distance forward by a continuous box brace.
Very high belt speeds are employed, and an improved belt shifting mechanism is provided, which can be handled from either side of the machine. The side heads can be run down below the platen, as seen, can be used to plane at any angle, and have automatic feed up or down, by nuts which engage with stationary screws. All feeds may be thrown in or out simultaneously or independently, as may be desired, and may be reversed independently. They have a range on this size machine from the finest feed to ½". Some idea of the solidity and capacity of the machine may be had from the fact that it weighs about 12,000 lbs. |
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1892 G. A. Gray Co., Spiral-Geared Metal Planer
1892 G. A. Gray Co., Spiral-Geared Metal Planer
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