Page:United States Statutes at Large Volume 18 Part 1.djvu/931

 Trrna ur.——REGULATION OF STEAM·VESSELF.—Ch. 1. 859 with the intent to mislead or deceive, shall be fined two thousand dollars, one-half to the use of the informer, and may, in addition thereto, at the discretion of the court, be imprisoned not exceeding two years. SBC. 442§3. The working steam- ressure allowable on boilers constructed Pre ssn re of of plates inspected as required by this Title, when single-riveted, shall ***<‘¤¤¤ ¤"<>**'¤i>l¤‘— not produce a strain to exceed one-sixth of the tensile strength of the Hd,, S, 39, 1ron_or steel plates of which such boilers are constructed; but where the longitudinal aps of the cylindrical parts of such boilers are double-riveted, and the rivet-holes for such boilers have been fairly drilled instead of punched. an addition of twenty per centum to the working·pressure provided for single-riveting may be allowed: Prozdded, That all other parts of such boilers shall correspond in strength to the additional allowances so made: and no split-calking shall in any case be permitted. Sec. 4434. No boiler to which the heat is applied to the outside of the Thickness of shell thereof shall be constructed of iron or steel plates of more than beiler-plate. and twenty-six one-hundredths of an inch in thickness, th ends or heads of $,p“°° h°*“'*’°“ the boilers only excepted: and every such boiler employed on steam- i°EL._¥ vessels navi ting rivers flowing into the Gulf of Mexico, or their trib- Ibidutaries., shaiiuhave not less than three inches space between and around its internal fiues. Srzc. 4435. The feed-water shall be delivered into the boilers in such Feed and conmanner as to prevent it from contracting the metal, or otherwise injuring ¤€<>¢i¤¤ Piperthe boilers. And when boilers are so arranged on a vessel that there is "H,§iT` employed 11 water-connectin pipe through which the water may pass from one boiler to another, fiiere shall also be provided a similar steamiconnection, having an area of opening into each boiler of at least one square inch for every two square feet of effective heating-surface contained in any one of the boilers so connected, half the flue and all other fire-surfaces being computed as effective. Adequate rovision shall be made on all steam—vessels to prevent sparks or flames fprom being driven back from the fire-doors into the vessel. Sec. 4436. Every boiler shall be provided with a good, well-constructed Safety-ral ves, safety—valve or valves, of such number, dimensions, and arrangements §’j‘bl°P “8”· &°· as shall be prescribed by the board of supervising inspectors, and shall Ibid. also be provided with a sufficient number of gauge-cocks and a reliable low-water indicator that will give alarm when the water falls below its prescribed limits: and in addition thereto there shall be inserted, in a suitable manner, in the fines, crown-sheet, or other parts of the boile1· most exposed to the heat of the furnace when the water falls below its prescribed limits, a plug of good Banca tin. Sec. 4437. Every person who intentionally loads or obstructs, or causes Punishment for to be loaded or obstructed, in any way or manner, the safety—valve of a °bf*'“°*·m¤¤¤f°*Y· boiler, or who employs any other means or device whereby the boiler may be subjected to a greater pressure than the amount allowed by the Ibid-.¤· 40· certificate of the inspectors, or who intentionally deranges or hinders the operation of any machinery or device employed to denote the state of the water or steam in any boiler, or to give warning of approaching danger, or who intentionally permits the water to fall below the prescribed lowwater line of the boiler, and every person concerned therein, directly or indirect}, shall be guilty of a misdemeanor, and shall be fined two hundred dollyars, and may also be im risoned not exceeding five years. Sec. 4438. The boards of localpinspectors shall license and classify the Licenses of odimasters, chief mates, engineers, and pilots of all steam-vessels. It shall °°"“ bY"’“P°°“{"_‘§ be unlawful to employ any rson, or for any person to serve as a master, 1bid.,s.r1,p.446. chief mate, engineer, or piidt on any steamer, who is not licensed by the inspectors; and an one violating this section shall be liable to a penalty of one hundred dollars for each offense. Sec. 4439. Whenever any person applies to be licensed as master of u. License of capsteam—vessel, the inspector shall make 1 igent inqluiry as to his character, lm"- and shall carefully examine the applicant, as wel as the (proofs which he Ibid.,s.15. presents in support of his claim, and if they are satisfie that his capac- 1ty, experience, habits of life, and character are such as to warrant the belief that he can be safely intrusted with the duties and responsibilities