Peter J. StarleyWarwickshire RFD 156 |
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Gunpowder Incorporating Mills, No. 5 The gunpowder ingredients, after preliminary mixing, are here thoroughly incorporated together. Each charge of 50lb is carefully spread over mill bed, and is subjected to the rolling weight of the runners which is considerable. viz : - 4 tons each, for 3 hours. The movements of the runners are controlled by a friction clutch, which is worked by hand gear situated in a convenient position, so that the machine can be started and stopped at any time, and quickly. Diameter of runners, 6ft.6. Width of runners, 1ft.3. Revolutions per minute 8. |
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