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Title: |
1906 Article-Cincinnati Milling Machine Co., #2 Universal Tool Grinder |
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Source: |
Page's Engineering Weekly, 02 Feb 1906, pg 249 |
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Insert Date: |
6/7/2012 12:22:27 PM |
No. 2 UNIVERSAL TOOL GRINDER BY THE CINCINNATI MILLING MACHINE COMPANY
The centres swing 12 inches, and take 36 inches in length. There are 8 changes of automatic feed for each spindle speed, ranging from 8½ inches to 65½ inches per minute. The swivel head has No. 12 B. & S. taper hole for holding cutters on their own shanks for grinding, and will take face and side-milling cutters up to 24 inches diameter, 3 inch face, grinding three sides of blades without rechucking.
The spindle is of tool steel and runs in phosphor bronze boxes adjustable for wear. The speeds are 4 in number: viz., 1,800, 2,300, 3,000, and 4,300 revolutions per minute. The table—46 inches long— has a 5/8 in. T slot, and swivels about a fixed centre; it has graduated arc reading in degrees, and a scale at end reading up to 2 inch taper per foot. It can be lowered 12 inches below centre of emery wheel spindle.
For surface grinding it will take work 7 inches by 24 inches on table. The swivel vice has jaws 4 inches wide, 1 7/16 inches deep; opening 3 1/8 inches, while the internal grinding attachment will finish holes 3/4 inch diameter and larger by 4 inches deep. It has 4 speeds, from 7.900 revolutions per minute to 10,000 revolutions per minute. Internal grinding can also be done by an extension on main spindle, which will grind holes 1½ inch diameter and larger by 5 inches deep.
The net weight of complete machine with countershaft is about 2,235 lbs. the net weight, with motor being about 2,560 lbs. |
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1906 Cincinnati Milling Machine Co., #2 Universal Tool Grinder
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