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Title: |
1903 Article-H. W. Ward & Co., Cutter & Twist Drill Grinder |
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Source: |
Emery Grinding Machinery, 1903, pg. 124 |
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Insert Date: |
11/27/2015 1:34:53 PM |
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In another works where a large variety of cutters and reamers have to be sharpened, and where, possibly, an occasional cylindrical piece of work has to be ground, it would then naturally be essential that the machine be practically a complete cutter and reamer grinder, and yet be capable of dealing with an ordinary piece of cylindrical work when required, by the aid of certain attachments to the machine. It is in instances of this latter kind that the machine represented by fig. 103 comes in useful. The machine is arranged for sharpening cutters, reamers and drills; the slides are mounted on a round column which provides for bringing the work centres in line, at right angle or at any intermediate angle, with the emery wheel spindle. A fixture is provided for holding a twist drill grinding attachment. The knee bracket K B is attached to the column; M S is the middle slide upon which the swivel slide S is fixed; T is the table or top slide whereon is placed the adjustable table T G to be used for taper grinding; the former F is used for cutter grinding; W D are the two heads carrying centres for receiving the cutters to be ground; EWH is the emery wheel headstock, and the twist drill grinder is indicated by the letters T W. The two heads H C at the bottom of fig. 103 are separate heads provided for occasional cylindrical grinding. |
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1903 H. W. Ward & Co., Cutter & Twist Drill Grinder
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