| http://www.w3.org/ns/prov#value | - Describing now a mechanism for intermittently actuating the hammers 31,32, 33 in definitely timed relation to rotation of the drum 9, 61 is an endless chain driven by a sprocket wheel 62 secured to the gear 53 and driving a sprocket wheel 63 fast upon the outer end of a tubular shaft 64 which surrounds the shaft 45.
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