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An Analysis of the Transition of a Helicopter From Hovering to Steady Autorotative Vertical Descent
"This report is the second phase of a broad program of study of the transient motions of helicopters in autorotative flight. The first phase (reference 1) dealt with the steady-state condition of autorotative vertical descent. This report is concerned with the the transition from the steady condition of hovering to the steady autorotative descent" (p. 1).
Date:
June 1949
Creator:
Nikolsky, A. A. & Seckel, Edward
Object Type:
Report
System:
The UNT Digital Library
Fruit Squeezer.
Patent for a new and improved fruit juicer. This design consists "[i]n a fruit-squeezer having flat or nearly flat pressing-surfaces, the combination of jaws having lever-handles integral therewith, and face-plates held in transverse dovetail seats in the faces of the respective jaws by means of clamping-screws, and supported therein by central set-screws" (lines 89-95).
Date:
June 26, 1883
Creator:
Stein, Philip H. & Tams, James
Object Type:
Patent
System:
The Portal to Texas History