. American engineer and railroad journal . COMBINED SCREW AND HYDRAULICPUNCH. :-■©■ 1. Fio FOR BORING LOCOMOTIVE CYLINDERS. valve seats is of the rotary type, and is now found in nearlyall American locomotive repair shops. Mr. Buchanans patenth dated January 1, 1890, and is numbered 581,773. SECTION OF COMBINED SCREW AND HYDRAULIC IINCIl. tion when the screw is withdrawn, being forced back toits upper position when the punch, is raised after the work IS done. Vol. LX1X. No. 3.] AND RAILROAD JOURNAL. 145 AeronauticS. Under this heading we shall hereafter publish all matter relating
. American engineer and railroad journal . COMBINED SCREW AND HYDRAULICPUNCH. :-■©■ 1. Fio FOR BORING LOCOMOTIVE CYLINDERS. valve seats is of the rotary type, and is now found in nearlyall American locomotive repair shops. Mr. Buchanans patenth dated January 1, 1890, and is numbered 581,773. SECTION OF COMBINED SCREW AND HYDRAULIC IINCIl. tion when the screw is withdrawn, being forced back toits upper position when the punch, is raised after the work IS done. Vol. LX1X. No. 3.] AND RAILROAD JOURNAL. 145 AeronauticS. Under this heading we shall hereafter publish all matter relating to the interesting subject of Aerial Navigation, abranch of engineering which is rapidly increasing in generalinterest. Mr. 0. Chanute, , of Chicago, has consented toact as Associate Editor for this department, and will be a fre-quent contributor to it. Readers of this department are requested to send the namesand addresses of persons interested in the subject of Aeronauticsto the publisher of The American Engineer. AUTOMATIC LONGITUDINAL STABILITY. Whoever has experimented wi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
