es, shaft, D, arranged to receive the non-congealable liquid from connections, etc., is of great value, making them, as we are and have for their object to furnish a simple, durable, and above and the water to be frozen from below. informed, absolutely ammonia tight. inexpensive mill. This mill… … crushes the ore as it 1s raised-by wipers or friction rollers are two concentric metal walls, C, resting in a circular carried by the shaft of the machine. trough, F, for receiving the non-congealable liquid, and in rapidity in making the ice. The uncongealable fluid per- An improvement in duplex…
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