ment has been patented by John M. Pugh, up it jumps, and away it goes. Hawks, too, are usu- complished by machinery of special design and which, of Reno, Nevada, Fig. 1 showing it as an extension ally startled or annoyed so that they fly off. Wood- ladder, Fig. 2 as a step ladder, and Fig. 3 as a… … less steel ring, with suitable bed casting, oil being used PUGH'S EXTENSION LADDER AND WINDOW JACK. instead of water in the rams, and a three-throw pump giving a maximum pressure of a thousand tons. The section is pivoted a bracesection, which may be moved rams act upon a corresponding series of…
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