液压Power Engines and Motors.
The illustrations of hydraulic power engines given herewith represent the productions of the Walker Manufacturing Company of Cleveland, O. This firm has been very successful in introducing hydraulic power machinery in this country, which, by the way, is thus far but the beginning of the introduction of hydraulic power machinery, and bids fair in many cases to take the place of steam, and, in fact, is practical and economical for even many other instances where steam cannot be utilized, while being also more reliable than steam for efficient
service where great pressures are required to accomplish certain work.
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