"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 4105079 | Device for launching percussion ground borers A launching device for launching a percussion borer at the start of a ground boring operation comprises a carrier for holding the borer with mounting means which permits the borer to move forwards relative to the carrier in a boring movement but resists b... | 08/08/1978 |
| 4059162 | Drilling unit for stadium seats A drilling machine is disclosed for use in providing bolt holes in concrete stadium riser steps and the like. The drilling machine includes a relatively stationary base plate, and a foot plate slideable upon the base plate along a predetermined path. The ... | 11/22/1977 |
| 4002210 | Friction wheel actuated post driver The guide frame of a post driver is supported in an adjusted position by the three-point hitch of a tractor and its driver element is displaced upwardly by a friction drive assembly carried by the guide frame and driven by a power take-off from the tracto... | 01/11/1977 |
| 3999616 | Method and apparatus for establishing the drilling line of an overhead boring machine A bedplate is rigidly affixed relative to the tunnel floor and includes a centrally disposed shaft extending upwardly therefrom. A rotatable base member is mounted on the bedplate for rotation about the central shaft. A boring machine adapted to bore upwa... | 12/28/1976 |