secured firmly to a fixed block or bed-plate and the ram being fitted to guides in the said block or plate and attached to a piston working within a steam cylinder secured to the same block or plate ; the ob ject being the direct application of steam power t the welding and repairing of railway bars. John C. Park of Buffal N. Y. is the inventor of this im improvement. THE MASSACHUSETTS STATE PATENT BILL. AN ACT TO PROMOTE THE PROGRESS OF THE USEFUL ARTS., scientific american, 1863-04-11
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