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Title: |
1915 Article - Balance Machine |
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Source: |
Machinery. Jan. 1915. Pg. 422 |
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Insert Date: |
11/12/2010 10:28:05 PM |
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The accompanying illustration shows a combination balancing and drilling machine built by Fay & Scott Dexter Maine The combination in a single machine of means for testing the balance of a wheel and then drilling to correct for any error In balance is naturally the means of greatly increasing the speed at which this work can be done Where a plain balancing machine is used in connection with the drill Fay Ic Scott Combination Balancing and Drilling Machine press it is obviously necessary to first determine the heavy side of the wheel and then take the wheel to the drill press on which the excess metal is removed But as great care must be taken to avoid removing too much metal it is generally necessary to shift the work back and forth between the balancing machine and drill press several times Using this machine a man can balance forty flywheels in ten hours On the new Fay & Scott balancing machine the mandrel carrying the wheel to be balanced is supported on hardened steel knife edge disks 6 inches in diameter These disks are mounted in ball bearings so that they turn very freely to show slight errors in the balance of the work The bed of the machine is of box section and carries a tailstock which may be adjusted for flywheels of different face widths The position of the headstock is fixed The drill spindle has an in and out movement of 4 inches this movement being controlled by a rack and pinion and operated by hand A steadyrest is mounted on the tail stock opposite the drilling spindle in the headstock this steady rest is screwed up against the flywheel before the drilling operation is started thus holding the wheel firmly in place The capacity of the machine is for flywheels up to 42 inches in diameter and the minimum diameter of wheels that can be drilled is 13 inches The vertical adjustment of the drill head is 14 inches The machine occupies a floor space of 65 by 25 Inches and weighs 900 pounds |
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