1190 THE COLLIERY GUARDIAN. •June 4, 1915. Complete Specifications Accepted. (To be published on June 10.) 1914. 4214. Fuel and method of making the same. Hickman. 4639. Method of treatment for iron ores or residues in a finely divided state, preparatory to smelting. Heskett. 5381. Locomotive worked by products of combustion under pressure. Shelest. 5564. Appliances for breaking down rock, coal, and the like. Davies, Davies, and Morgan. 6543. Brakes for railway and like vehicles. Masson. 10612. Manufacture of ammonia. Calvert. 11136. Apparatus for purifying gas. Climie. 11799. Apparatus for purifying feed water supplied to steam generators. Hocking. 11889. Connection boxes, junction boxes, and the like. St. Helens Cable and Rubber Company, and White. 12116. Compressors. Leinert. 12351. Mills or apparatus for crushing ore and other materials. Robertson and Robertson. 12400. Gas producers. Wollaston. 12563. Valves for percussive rock drills. Tindall. 12612. Chill rolls. Davies and Richards. 12622. Marine geared turbine installations. Parsons, Carnegie and Cook. 12643. Cracking oils, and apparatus therefor. E. A. Valpy, administratrix of 0. H. Valpy, deceased, and Lucas. 12885. Electrical signals in mines and collieries. Theedam. 15619. Points or switches for telpher tracks and the like. Robert Dempster and Sons Limited, and Hargreaves. 18092. Electric accumulators or secondary batteries. Coles. 18163. Furnaces or fire boxes of boilers. Allen. 18390. Discharging devices for vertical retorts. Plantinga. 19796. Supports for mine roofs. Ericsson. 20486. Mine signalling apparatus. Campbell. 20378. Manufacture of superheater and like tubes. Hunter. 23736. Supports for mine roofs. Ericsson. 1915. 502. Valves for controlling the supply of fluid under pressure. Davidson. 4847. Turbine nozzles. Akt.-Ges. Brown, Boveri et Cie. 6221. Settings of steam generators or for analogous purposes where it is desirable to prevent air passing through brickwork. Hill. (To be published on June 17.) 1014. 4937. Smelting of ores and apparatus therefor. Highfield. 8882. Compressed .air driving and braking devices for wind- ing apparatus. Bryant, and Peter Brotherhood Limited. 10420. Fixation of nitrogen as cyanamides, or cyanides, of metals, with or without subsequent treatment for obtaining ammonia and alkalies, or other derived products. Ashcroft. 12431. Means for compressing gases. Harsant. 12773. Fire door for furnaces. Morgan. 12929. Pile shoe for wooden and concrete piles. Johnston. 13006. Grate bars for the furnaces of steam generators and the like. Wilkins. 13484. Rock drills. Holman and Holman. 16130. Automatic electric switching mechanism for con- trolling fluid compressors. Pieper and Pieper. 17686. Compound for making watertight the joints of covers of boxes for underground electric mains and dis- tributors, and similar joints of boxes fixed in exposed positions. Walker. 18012. High-speed ratchet drilling machine. Cammiss. 18540. Weighing machines. Ashworth. 18713. Electric batteries. Fuller, Fuller, and Fuller. 20635. Tramway and like joint rails. Major. 1915. 2728. Electric smelting furnaces and the like. Highfield. 3617. Steam traps. Lancaster and Tonge Limited, and Butterworth. Complete Specifications Open to Public Inspection Before Acceptance, 1914. 16791. Treatment of liquid hydrocarbons. Sabatier and another. 1915. 2460. Iron piling. Pasel. 6297. Fluid pressure controlling systems. Herr. 6732. Regulating and safety apparatus for boiler feed pumps. Geb. Stork and Company. 6733. Condensing plant. Geb. Stork and Company. 7227. Steam condensers. Soc. Anon, pour 1'Exploitation des Procedes Westinghouse Leblanc. 7412. Breathing device for diving equipment and the like. Hanseatische Apparatebau Ges. vorm. L. von Bremen and Company. 7529. Methods of and apparatus for operating upon metals and so forth under water. Deutsch-Luxemburg- ische Bergwerks und Hutton Akt.-Ges. THE ACQUISITION OF ENEMY PATENT RIGHTS. The following list of British Patents, which have been granted in favour of residents of Germany, Austria, or Hungary, is furnished in view of the new Patents Acts, which empower the Board of Trade to confer upon British subjects the right to manufacture under enemy patents, which right, when acquired, can be retained after the war, and is specially compiled for the Colliery Guardian by Lewis Wm. Goold, chartered patent agent, 5, Corporation-street, Birmingham. It is desirable in the first instance to obtain the latest particulars upon the Patents Register. If any patent listed has been assigned to a non-enemy proprietor, the law does not apply. 2314/13. Miners’ and like breathing appliances. In a portable regenerative breathing apparatus, the oxygen from the cylinder is admitted to the circuit in front of the regenerator by a passage, and no injector is employed. The apparatus further comprises a special by-pass and coupling arrangement, a relief valve and a mask or helmet with inlet and outlet valves. D. C. H. Schumann, and Hanseatische Apparatebau- Ges. vorm. L. von Bremen and Company, Germany. 2704/13. Rope railways. The cable which carries the arm engaging the truck is actuated by a stationary motor, etc., which is controlled by a handle on an arm, and an intermediary member which is not affected by oscillation of the arm. The cable passes through the pivot pins of the arm, and forms a loop engaged by one end of the handle, and is coupled to a switch or valve. The cable is held taut by a spring or weight. C. Cippitelli, Germany (dated August 17, 1912). 2766/13. Preparing peat, etc. Peat and other pulpy or muddy substances are heated in traversing a series of chambers, in which successively the temperatures and pressures are increased, and can afterwards be drained or dried by mechani- cal means. The heating medium, such as steam or. vapours, generated from the material, is passed through the chambers in a counter- flow. Superheated steam may be fed to one or more chambers, or single chambers may be heated internally or externally. G. Wolters, Germany. 3035/13. Gas producers. A process for the gasification of fuels, especially such as are of a fragmentary nature, for example, slack, coal, breeze, peat dust, or sawdust, consists in treatment in a gas producer with an air current passing in a downward direction. The fuel is delivered upon the charge in the producer in such manner during the gasification period, as always to cover the gradually increasing residue of ashes with sufficient fuel for obtaining producer gas, and gasification is stopped when the ashes have accumulated to a certain height, the ashes being then removed from the fuel bed so as to begin anew. F. C. W. Timm, Germany (dated February 13, 1912). 3147/13. Coke ovens. In a coke oven heated by a mixture of coke oven gas with a poorer gas, such as blastfurnace gas, the former, in a cold state, is mixed with the latter, which has been heated in the usual manner at a point close to the combustion flues, in order to reduce the liability of the richer gas to dissociation. Stettiner Chamotte Fabrik Akt.-Ges. vorm. Didier, Ger- many (dated September 25, 1912). 3380/12. Permanent way; rail joints; chair keys. A. Vietor, Germany (dated February 10, 1912). Copies of any of the above specifications can be supplied at the price of Is. post free. Applications to Avoid oh Suspend Patents or Licences. No. and year of patent. Name of grantee. Name and address of applicant. Date of hearing. 3762/13 6844/02') 19737/04 S 24451/04 ) Hildebrand & Knorr - Bremse Akt.-Ges. (Feed-pumps). Boult (Hiilsberg & Co.) (Impregnation of wood, &c.) Allen West and Co. Ltd., Lewes-road, Brighton. Calder, Dixon and Co. Ltd., Middles- brough-on-Tees. June 7. June 7. Immingham Coal Exports.—The following is the official return of coal exported from Immingham during the week ending May 28 ;—To Christiania, 2,543 tons; Gefle, 1,003; Gothenburg, 1,308; Landscrona, 2,006; and Rotterdam, 1.692 tons—total, 8,552 tons, compared with 38,119 tons in the corresponding week of last year. Grimsby Coal Exports. —■ The following is the official return of coal exported from Grimsby during the week ending May 28 :—Foreign : To Carls’hamn, 611 tons; Christiania, 1,290; Esbjerg, 6,870; and Rotterdam, 1,096— total, 9,867 tons. Coastwise : To Little Yarmouth, 195 tons; compared with 25,963 tons foreign and 661 tons coast- wise during the corresponding week of last year. CATALOGUES AND PRICE LISTS RECEIVED. The Sullivan Machinery Company, of Chicago, send us a little booklet epitomising the styles and capacities of the air compressors built by them, brief particulars being also given of the various types of Sullivan hammer and piston rock drills, etc. A special bulletin deals with the Sullivan air-feed stoping drills. The Sullivan stopers are made in three variations; in addition to a standard drill for normal conditions, a light hitting drill, with a shorter and faster stroke, is made for soft or broken rock, and a heavy hitting drill, with a longer and slower stroke, for exceptionally hard ground. Solid cruciform steel is employed, and no shank is necessary.. The automatic air-feed attached to these machines consists of a cylinder about 2 ft. long, and a tightly-fitting piston with a projecting piston rod. The tool rests on the point of this piston rod, and when air is admitted to the cylinder, the pressure on the piston raises the machine up, and feeds it automatically as the bit drills into the rock. A “ reverse-feed ” mounting may be supplied. A great deal has been written on the comparative merits of cast iron and steel pipes, and perhaps the steel point of view has received more than its fair share of argument. The case for cast iron is well presented in a handsome booklet which has just been issued by the United States Cast Iron Pipe and Foundry Company, of Burlington, New Jersey. In the earlier part of the volume, which is copiously illustrated, an excellent history of the pipe is given, after which various applications are dealt with in turn. The advantages claimed for cast iron pipe over that of steel construction are its greater carrying capacity, lower rate of leakage, lower maintenance costs, greater resistance to cor- rosive and electrolytic action, and its longer life. Included in the volume are the standard specifications of the American Waterworks Association, now regarded as the manufac- turer’s standard in America, as well as the steam specifica- tions of the American Society of Mechanical Engineers, adopted in 1913, and the gas specifications of the American Gas Institute. In addition, there is a useful collection of tables such as are likely to be serviceable to the engineer. Messrs. Ashwell and Nesbit Limited (Barkby-lane, Leicester) are the makers of the “ Nuconomiser” feed water heaters, and these heaters are of the “ open ” or “ closed ” type, and utilise exhaust steam without back pressure. In the open type the supply of fresh cold water is connected to an equilibrium valve, which latter is operated by means of a vitrified stone float situated within the outer casing of the receiver or “ hot well.” As the hot water gravitates to the receiver, it is pumped out of the apparatus; the storage is thus reduced, and the float automatically lowers, opening the equilibrium valve, and permitting more cold make-up water to flow to the top chamber of the apparatus. The make-up water, entering the “ Nucono- miser ” at the top, passes through a series of holes, or a circular rose, which breaks up the stream into a fine spray. Thus the cold water intermingles with the hot steam, which latter is also introduced at the top tier of the apparatus. The steam flows downwards to the bottom tier by way of circular pipes, distributing a large volume of steam to each tier. The cold inflowing water first condenses the steam in the topmost chamber, or tier, and in so doing takes up the latent heat from the steam condensed. The heated water, together with the water condensed from the steam, gravi- tates from the top tier through perforated plates, and is again broken up into spray before it enters a second beating chamber, to again come into contact with more steam. For hard waters a combined heater-softener apparatus is supplied, with, a water and chemical measuring device, automatically controlled by the height of water in the receiver. This process is continued through a series of tiers depending upon the capacity of the “ Nuconomiser,” so that when the water ultimately reaches the receiver and storage compartment it will have attained practically boiling point or approximately 210-212 degs. Fahr. GOVERNMENT PUBLICATIONS. **♦ Any of the following publications may be obtained on application to this office at the price named post free. Statutory Companies Redeemable Stock Act, Id. Pauperism Statement for April 1915, lid. Statutory Rule and Order, 1915 : (No. 435), Warrington Light Railways, IJd. Explosion Reports : (No. 213), at Nobel’s Explosive Com- pany Limited, Ardeer, 2Jd.; (No. 214), at Messrs. Cogwell and Harrison Limited, at Poyle, IJd. Dominions Royal Commission : Minutes of Evidence taken in Newfoundland, Is. 6d. Civil Service Commission, Abstracts of Rules and Regu- lations, 1915, 9d. PUBLICATIONS RECEIVED. Mechanical Drawing, with Special Reference to the Needs of Mining Students. By Joseph Husband. London : Edward Arnold. Price, 3s. net. “ Anglo-Norwegian Trade Journal” (Vol. 1, No. 5), May; “ The Journal of State Medicine ” (Vol. 23, No. 6), June, price 2s.; ‘‘The Naturalist,” June; “Records of the Geological Survey of India” (Vol. 45, Part 2), 1915; “ Transactions of the Manchester Geological and Mining Society ” (Vol. 34, Part 4), May. SMOKE HELMETS (ALL-BRITISH MANUFACTURE) for extinguishing Goh Fires, and for other short distance work in Collieries. A necessary Apparatus for every Colliery to cope immediately with emergencies within short distances from fresh air. Extremely simple. Nothing to get out of order. ALSO MAKER * OF THE “PROTO” (Fleuss-Davis Patent) RESCUE APPARATUS, OXYGEN REVIVING APPARATUS. GAS ANALYSIS APPARATUS. SELF-CONTAINED DIVING APPARATUS (no air pumps or tubes) for use in difficult situations where the use of a r pumps and tubes would he impracticable. SIEBE, GORMAN & Co. Ld. “NEPTUNE” WORKS, LONDON, S.E. Telegrams—“Siebe, Lamb, London.” Telephone No.—Hop 3401 (2 lines). Agent for North America and Mexico :-H. N. ELMER, 1140, Monadnoch Block, Chicago. Driving Chains & Wheels Conveyors, Elevators, Screening Plant, Tipplers, &c., &c. ON WAR OFFICE AND ADMIRALTY LISTS. HANS RENOLD LTD., Didsbury, MANCHESTER. ALFRED ALLEN & SON Makers of LTD, COLLIERY AIR PIPES. and COLLIERY TUBS In IRON, STEEL and WOOD. Lower Gornal, nr. Dudley. Telegrams—Allen, Lower Gornal.” Telephone—106 Dudley.