effects the coupling, and operated from the shaft journaled therein as the tail view. This device is calculated to take up exces- the uncoupling being effected by withdrawing the pin churn is revolved. The pipe supplying air to the sive strain and jar, and also to cause a shorter stroke by means of… … tube, and its outer end is bent over at the top, and fitted with a rose head to prevent the passage of flies or other insects to the inside of the churn. The coupling pin may, however, be turned so that the coup- shorter of the two standards on which the churn body ling will not operate, thus…
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