thout running it back. +O ENGINEERING INVENTIONS. The two parts, A B, of the stock are hinged together and A traction engine, so constructed that the tracks may be join each other diagonally. A spring catch, C, on one half carried forward by the drive wheels and kept securely in It was the bursting… … that the circuit closer will be position of the stock, die, and WALKER & WILIIAMS’ DIE STOCK. stopped automatically as soon as guide. the signal is given, and held in With this tool threads can be place until the signal is to be repeated. The invention con- death of Mr. Manning, one of the oldest…
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