File:Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892) (14789888903).jpg

Identifier: modernmechanisme00benj (find matches)
Title: Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics
Year: 1892 (1890s)
Authors: Benjamin, Park, 1849-1922
Subjects: Mechanical engineering
Publisher: New York, D. Appleton
Contributing Library: Mugar Memorial Library, Boston University
Digitizing Sponsor: Boston University

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n pipe being also balanced, and a swing-joint H. 412 GUN, CARBOXIC-ACID. The jacket is formed preferably of three or more sections—the trunnion section, an inter-mediate section or t^ections. and the valve section—bolted together. The trunnion and inter-mediate sections are sujiported from the barrel by radial webs or studs, leaving ample spacefor the free passage of the fluid from the trunnions to the breech. The breech-end of the bar-rel contiguous to tiie main valve 4 is continued by an inner flanged bonnet 0, having lantern-openings c for the admission of the fluid-pressure, and having radial and longitudinal pas-sages to obtain eflicicnt work of the valve. The valve section of the jacket is provided withribs supporting an inner jacket, which, with the bonnet, forms a chamber ior the main valve,from the back portion of which chamber through one of the ribs a passage is formed to theauxiliary valve. The forward part of the barrel, which is free of jacketing, is supported by a
Text Appearing After Image:
truss attached to the trunnion section of the jacket by bolts and keys. The barrel is supportedon the truss by chairs which are adapted to transverse and vertical motion, so that the align-ment of the barrel can be easily adjusted. The gun-carriage A, mounted to turn upon a suit-able baso L, is formed in the main of sheet, angle, I, and channeled irons, braced and alsotied together: the vertical sides, eaeli foruKMl by a ()air of legs, are lioust-d by sheet-metal andseeured at their upper ends to inner and outer eastings, forming the trunnion-bearing.s. Theearriage carries the motors—electric, pneumatic, hydraulic, etc.—for training the gun andfor elevating. The gun-carriage is provided with locking wedges r/. by which the carriage, after eachtraining movement, is securely held in its jHisition upon the base. These wedges are operatedto release the carriage just, in advaiici! of the movement of the motor to train the gun ; andin the preferred arrangement, the fluid passing throug

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