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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt:...a railroad in this commonwealth. The tests under such regulations shall, if possible, be made by the master mechanic of the corporation, firm or person which constructs, repairs or uses such boilers. A person or corporation using a locomotive on a railroad in this commonwealth, the boiler of which has not been tested in accordance with the provisions of this section, shall be punished by a fine of twenty dollars for every day during which such use continues, to the use of the commonwealth. Section 174. A railroad corporation which uses any Mufflers with "vacuum vacuum brake shall provide and use on every locomotive teHi „, „ equipped therewith a muffler or other appliance, approved Ps-112, §§ "s, in writing by the board of railroad commissioners, for K-L-m. §21sdeadening the noise incident to the operation of such brake; but any other appliance may be used upon any locomotive for the purpose of experiment only, for not more than thirty days, but not upon more than two locomotives of the same corporation at any one time. Every application to said board for approval of such appliances shall be in writing; and such approval may be revoked by said board by written notice to the corporation. Section 175. A railroad corporation which uses upon--with safety r r valves. its locomotives a pop or other safety valve shall provide 1,i79 w,5 2 £.? 112. s1175. and use therewith a suitable and sufficient appliance for B. L. Il1, § 216.. rr deadening the sound made by steam escaping therefrom, and, if it materially retards the escape of steam or increases the pressure upon the boiler, the corporation shall use an additional safety valve without such appliance, set at a higher point than the other but below the point at which e...