ve. In panying engraving. It consists of a device adapted to shutting off the flow the auxiliary valve is closed, and assist in sharpening pencils accurately and quickly. though some of the dirt and scale may be caught be- It is usually held that the correct way to sharpen tween the valve and its… … The device has the advantages of being quite small and DEVICE FOR USE IN SHARPENING PENCILS, comparatively light, so that it can be placed on every car, or where the running time of cars is close, as in float chamber and air pipe are combined in one, as and cut away the surplus wood and lead by…
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