vice is the invention of Swan Parson, New Britain, almost none of them actually do their own cutting in bya finger and the rear guide. The device cannot, Conn. Inthe platform of the car a foot-rod is verti- marble, ‘This is intrusted to highly skiiled artisans therefore, fail in action. cally… … from a frame suspended above the marble to be the ground level to the second platform, or twice 130 PARSON’S SWITCH-THROWING DEVICE FOR CARS. chiseled. These lines are marked with divisions start- meters, will be but two minutes. About 500 horse ing from the frame. In order to mark a datum point…
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