Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 422
used in the water system of the campat Chalons. A rubber ring is inserted in the short bell, one clamp being con-nected ; the other is brought over and secured, compressing the rubber, makinga tight and a slightly flexible joint, easily taken apart and put together. Fig. 971 is a flexible steam…
Mechanical drawing
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