. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hrough the medium of a spring, whilethe shorter arm is capable of operatingthe same ra,ck through the medium of apawl. For a given movement of theoperating lever, the end of the long armwith the spring connection travels faster or consideralile shoe clearance, as with ashort piston travel. It has also been demonstrated that thebreaking or permanent setting of thespring will not destroy the effectivenessof the brake, but merely increases thenumber of strokes necessary to obtain afull applicati
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hrough the medium of a spring, whilethe shorter arm is capable of operatingthe same ra,ck through the medium of apawl. For a given movement of theoperating lever, the end of the long armwith the spring connection travels faster or consideralile shoe clearance, as with ashort piston travel. It has also been demonstrated that thebreaking or permanent setting of thespring will not destroy the effectivenessof the brake, but merely increases thenumber of strokes necessary to obtain afull application. In the matter of safetyalso the device can he easily operatedwith one hand, while the other hand canhold to a grab iron for protection. Safety Car Loaned to Industrial Com-mission. The Baltimore & Ohio has arrangedto loan to the Industrial Commission ofOhio a vestibule passenger car which isfitted up with safety devices, pictures andother material dealing with educationalaccident prevention, and which will beoperated through the State of Ohio. Anew feature is the placing of transpar- I50i?. This rod nnrecfedbuchain topush rod. Note: Bmkfs shown set fortr^treme near of shoes,and lever pulled up In releaseposition, rock IS dropped down, and Slever IS dropped to I^ht, 4Sfromthe vertical friction nos disregoijcdin findinq Itie forces DETAILS OF HIGH TOWEK I!k.\KE. New Process of Preserving Timber. What is known as the Nodon processfor drying and conserving timber ismeeting with much success in method makes use of electricity. Astrong electric current passes throughfreshly-cut wood and appears to cause achemical change resulting in oxidation ofcertain parts, together with a physicalchange in the cellulose. On account ofthis, the wood is better preserved againstthe action of fungi and is more suitablefor mechanical use. It is said that in afew hours a thorough oxidation of thewood sap takes place by this process,which ordinarily requires several month
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
