The Optical Magic Lantern Journal (May 1897)

80 The Optical Magic Lantern Journal and Photographic Enlarger. 6. Every application must state— (a2) The quantity of Carbide of Calcium which the applicant desires to kcep; (b) The proposed place and method of storage ; (c) If the Carbide is only to be kept for sale in closed vessels, or if it is to be used in the manufacture of Acetylene Gas. 7. Carbide of Calcium should be kept in strong metal vessels, and— (a) Such vessels should be so constructed and closed as to prevent the admission of water or atmospheric moisture. (}) Such vessels should only be opened for the time necessary for tho removal of any required quantity of Carbide, or for the refilling of the vosscls. (c) No one vessel should have a greater capacity than necessary for containing 112 Ibs. of Carbide. (2) Every vessel of a greater capacity than 2 lbs. should be provided with a lock or be placed in a locked recoptacle so as to prevent unauthorised persons gaining access to the contents. (ec) Copper should not be used ia the construction of vessals for containing Carbide. 8. Vossels containing Carbide of Calcium should not be kept in dwelling-houscs, but in dry and well-ventilated outbuildings. 9. Small quantities for sale or immediate use will be allowed in shop, dwellings or workshops, if the arrangements are satisfactory. 10. The Council proposes only to grant licenses to keep Carbide of Calcium which is pure (in a commercial sense), i.¢., which contains no impurities liable to gencratc phosphoretted or siliciuretted hydrogen so as to render the gas evolved liable to ignite spontaneously. 41. Where Carbide of Calcium is kept for the manufacture of Acetyleno Gas, it is desirable that such of the following precautions for ensuring safety as are applicable to the circumstances, should be adopted— (a) Every apparatus for generating and storing Acetylene Gas should be placed in an outbuilding. (This does not apply to portable apparatus holding a charge of less than 2 lbs. of Carbide.) (6) Such building should be separated as far as may be practicable fram inhabited buildings, and should be well ventilated. (c) No fire or such artificial light as would ignite inflammable gas should be taken into or near the building or place where a gas-making apparatus is situate. 12. Every apparatus (including generator and gas holder) used for Acetylene Gas should as far as practicable bs constructed and used so as to provide against the special risk, i.e — («) Copper should not be used in avy part of the apparatus, (b) The various parts should be of adequate strength (c) Escape of gas from the apparatus should be carefully guarded against. (a) Satisfactory provision should be made against dangerous devclopment of heat. (e) Satisfactory provision should be made agair st undue pressure by the employment of an adcquate safoty valve connected with a pipe discharging into the open air, and a suitable Pressure gauge should be attached to the apparatus. (f) Provision should be made for the residue of the Carbide being mixed with at least ten times its bulk of water on being removed from the apparatus. (g) No person should have charge of an apparatus until he has been properly instructed in its mMansgement. 13. Licenses are granted for keeping Carbide of Calcium for periods not exceeding one year, and prior to expiration application must be made for their renewal. Notice of the expiration, and a form of application fof renewal, is sent to each Liconsee at the proper time. CONVEYANCE OF CARBIDE OF CALCruM. 14. Where Carbide of Calcium is sent er conveyed, the vessel containing it shall bear a label stating in conspicuous characters, the words, ‘Carbide of Calcium,” ‘Dangerous if not kept dry,’ and with the following caution :—‘‘ The contents of this package are liable if brought into contact with moisture to give off a highly inflammable gas,” and also the name and address of the sender. 15. Carbide of Calcium conveyed to or from licensed premises must be conveyed in accordance with the conditions of the license. INSPECTION. 16. Any dealer who refuses to show to any Officer authorised by the Council every or any place or all or any of the vessels in which Carbide of Calcium in his possession is kept, or to give him such assistance as he may require for examining the same, or to give to such Officer samples of such Carbide of Calcium on payment of the value of such samples, or who wilfully obstructs the Council, or any Officer of the Council, in the execution of these Acts and the order made thereunder, is liable to & penalty not exceeding twenty pounds. ALFRED SPENCER, . Chief Officer. 21, Whitehall-place, S.W., April, 1897. “sea =I} Qa Prominent Men in the Lantery World, No. VII.—Mr. BIRT ACRES. Pay is hardly necessary for us to { introduce Mr. Birt Acres to our readers—his name has long been before the photographie public in connection with some of the leading improvements in the art science, but it is more particularly in connection with animated photography that our readers will feel interested in his work. We learn that in 1893 he took out a patent for taking and projecting a series of photographs in rapid succession. Later on, in the spring of 1894, he designed an improved machine for this class of work, and in the spring of 1895 took a successful picture of the Oxford and Cambridge boat race; this picture is, we believe, absolutely the first picture taken of an historical event as apart from the specially-got up scenes with