. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . oblemof producing such holes in wood andmetal at a single operation. With thisdevice it is possible to bore such holesupon any ordinary lathe, milling machine,or drill press at a rate nearly equal to thespeed at which ordinary round holes canbe drilled with a flat or twist drill. The machine is certainly unique andcannot fail to interest the mathemati-cian if he is desirous of seeing the prin-ciple of Cardan suspension practically ap- NB HOSE COUPLING. to avoid any contact of the metal partsw
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . oblemof producing such holes in wood andmetal at a single operation. With thisdevice it is possible to bore such holesupon any ordinary lathe, milling machine,or drill press at a rate nearly equal to thespeed at which ordinary round holes canbe drilled with a flat or twist drill. The machine is certainly unique andcannot fail to interest the mathemati-cian if he is desirous of seeing the prin-ciple of Cardan suspension practically ap- NB HOSE COUPLING. to avoid any contact of the metal partswith the soft rubber lining of the hose,and, therefore, preserves it against in-jury, thus leaving it free to perform itsimportant function of sealing the hosestructure against small leaks, whicheventually cause bursting. When thehose is inserted in the coupling, asshown in our illustration, the clip isdriven against the shoulder of the hoseuntil the lug on the clip springs intoplace through the aperature in thecoupling. The hose is thus securely 46 RAILWAY AND LOCOMOTIVE ENGINEERING Janunry, RECOGNIZED as tHe STANDARD of FLEXIBLESTAYBOLTS Holds firebox sheets securelytogether, and accommodates it-self to the unequal expansionof the plates. USED ON OVER 100 RAILROADS Staybolt Troublea Thin^ of the Past So say many of our customerswho have used the Tate Boltin large numbers, covering aperiod of time sufficient to basecomparisons and eliminate allchances of doubt. THE TATE BOLT HASPROVED ITSELF INDISPENS-ABLE TO LOCOMOTIVES INHIGH PRESSURE SERVICEBY RENDERING A LOWERCOST OF FIRE BOX REPAIRSTO A GREATER MILEAGE INSERVICE, THEREBY IN-CREASING THE EARNINGVALUE. FLANNERY BOLT COMPANY Suite 328 Frick , PENN., U. 8. A. B. E. D. BTAFFOnn. GENERAL MANAGER Write for Literature. luountcil without having anything incontact with tlic inner tube. The strength of the hose dependsprimarily upon tlie ability of the duckwrapping or jacket to hold the pressure,the safety of th
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