Show 4 I 1 THE JEFFREY POWER EMERY GRINDER I 1 I 1 P 1 war i 1 A the accompanying illustration shows one one of the jeffrey handy tools which they supply for use in mining plants where their machinery is installed this grinder is self contained is made substantially of a cast iron frame to which is attached a small inch cylinder operating crank shaft which in turn is connected necked by means of a belt to an emery wheel arbor on the opposite end this machine is made to operate with either steam or air power it is also suitable for the driving of lights light machinery this is made possible by adding an extra pulley on the crank shaft which in turn will transmit power for light service it develops 6 H P while the entire machine occupies a floor space of about feet any one interested can secure further data by addressing the jeffrey manufacturing company at columbus ohio or any of its branches apa |