Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . pumping in water ad lib. See Hy-DKAULic Pivot ; W.\ In Girards palier-giissant the water, under a con-siderable head of pressure, is introduced beneath the Fig. 3496,. Palier-Glissntll. journal, lifting it slightly from its bearings ; aftertwo or three oscillations tlie journal assumes itsproper bearing on the box, the water flowing be-tween them
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . pumping in water ad lib. See Hy-DKAULic Pivot ; W.\ In Girards palier-giissant the water, under a con-siderable head of pressure, is introduced beneath the Fig. 3496,. Palier-Glissntll. journal, lifting it slightly from its bearings ; aftertwo or three oscillations tlie journal assumes itsproper bearing on the box, the water flowing be-tween them in a continuous and almost infinitesi-mally thin sheet. The com]iarative friction of thisand a bearing lubricated by oil may be tested byimparting rotation to two wheels journaled, one ineach way, by hand, wlien that provided with thepalier-giissant will be found to maintain its rotationmuch longer than the other ; if, however, the sup-ply of water lie cut off, the wheel immediately stops. Palimp-sest. A piece of parchment whose ori-ginal writing has been removed in order to fit it fora subsequent recoid. Many old documents werethus obliterated, and the wilting is restored by aninfusion of gall, dilute hydrochloric acid, oil, etc.,a certain trace of the materials of ink remaining inthe substance of the parchment which acts upon thesulistance applied. Pal-i-aade. (Fortification.) A row of stakesset firmly in
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