March 7, 1913. _________________________________________________________________________________________ THE COLLIERY GUARDIAN. 501 The Threatened Strike in Belgium. Mr. Boht. Smillie, president of the Miners’Federation of Great Britain, who has been attending the meetings of the Miners’ International Committee at Brussels, addressed a mass meeting this week of Belgian miners at Charleroi, dealing with the British national strike of last year, its lessons and results. The Belgian miners are organising, with other trades, a national strike for next month to secure an extension of the franchise, and they have asked the British and German miners to assist them by not increasing their exports of coal to that country during the continuing of the strike. An appeal was specially made to the British miners, as reports have already appeared that arrangements had been made for the purchase of 150,000 tons of Welsh coal from Cardiff, and that the Government had chartered two steamers for its transit to Belgium. Mr. Smillie promised the Belgian miners that they would do everything possible to prevent any increased exportation from this country to Belgium during the strike, but he pointed out the difficulty in which the miners were placed in not knowing for what market the coal which they produced was exported to. The question was one more for the transport workers than the miners. Mons. Lombard, M.P., secretary of the Belgian miners, said a special appeal would be sent out to the transport workers not to handle coal intended for Belgium. ________________________ THE TIN-PLATE TRADE. Liverpool. The situation is unchanged, only a moderate business is being done, and for early delivery some exceedingly low prices, certainly below cost, have been accepted. Forward trade is almost at a standstill, neither buyers or sellers caring to commit themselves ahead. 12x20 cokes have been done at 14s. and even less, and squares and odd sizes at 14s. 3d. basis. It is impossible to say what plates are worth to-day, but the following will give an idea of about the figures makers are quoting for shipment over the next few weeks. Coke tins: I C 14 x 20 (112 sh. 108 lb.)> 14s. per box; I C 28 x 20 (112sh. 2161b.), 28s. 3d. per box ; I C 28 x 20 (56 sh. 108 lb.), 14s. 4|d. per box ; I C 14 x 18f (124 sh. 1101b.), 14s. 6d. per box; I C 14 x 191 (120 sh. 110 lb.), 14s. 6d. per box; IC 20 x 10 (225 sh. 156 lb.), 21s. 3d. per box ; I C squares and odd sizes, 14s. 3d. to 14s. 6d. basis. Charcoal, 16s. 6d. basis and upwards. Ternes, I C 28 x 20, 25s. per box. Coke wasters C W 14 x 20, 13s. 4|d. per box ; C W 28 x 20, 26s. 9d. per box ; C W 14 x 18|, 13s. 3d. per box; C W 20 x 10, 19s. per box—all f.o.b. Wales, less 4 per cent. ______________________ THE BY-PRODUCTS TRADE.. Tar Products.—The market is steady and prices keep up to the recent standard. Pitch is firm and advancing. Benzols hold their own. Carbolics unchanged. Naphthas and creosote steady, though rather quiet. Nearest values are:— Benzols, 90’s London ...................... Do. 50’s London ...................... Do. 90’s North........................ Do. 50’s North................. .. Toluol..................................... Carbolic acid, crude (60 per cent.) .......... Do. crystals (40 per cent.)................ Solvent naphtha (as in quality and package) ... Crude ditto (in bulk) ...................... Creosote (for ordinary qualities) ............ Pitch (f.o.b. east coast) .............................. Do. (f ,a.s. west coast) .................... Do. (f.o.b. gas companies) ................ 10| to /Il /10| /10 to /10| /10 /10| 1/iU /3i 49/6 to /50 48/ to 49/ 50/ to 52/ [B«nsois, toluol, creosote, solvent naphtha, carbolic acids, usually casks included unless otherwise stated, free on rails at makers3 works or usual United Kingdom ports, net. Pitch f.o.b. net.] Sulphate of Ammonia—Though business is naturally somewhat quiet, the general tone is satisfactory, and the possibility of an advancing nitrate market helps to strengthen the situation. Forward business is quiet and prices unrepresentative. Closing prompt prices are:— London (ordinary makes)............ £13/7/6 Beckton (March-April)..............£13/16/3 to £13/17/6 ............................... Liverpool_____......................... £14/2/6 Hull .................................. £14/1/3 Middlesbrough _________.................... £14/ Scotch ports........................ £14/5/ Nitrate of soda (ordinary) per cwt. ... 12/ [Sulphate of ammonia, f.o.b. in bags, less 2| per cent, dis- count ; 24 per cent, ammonia, good grey quality; allowance for refraction, nothing for excess.] _____________________________ Barometric Warnings in the American Coalfields.— The United States Weather Bureau is inaugurating a system whereby the mines of Western Pennsylvania will be warned of anticipated marked decreases in the barometric pressure. When the matter was brought to the attention of Dr. Joseph A. Holmes, director of the Bureau of Mines, at Washington, he expressed a fear that such warnings to mineowners concerning atmospheric conditions might increase the danger of explosions in mines where gas occurs in dangerous quantities. He stated that the Bureau of Mines’ investigations along this line for the last two years had not been conclusive. TKE IRISH COAL TRADE. Thursday, March 6. Dublin. There has been a little or no falling off in demand during the week, the trade being active in all departments and prices generally unchanged, as follow:—Best Orrell, 27s. per ton; best Arley, 26s.; best Whitehaven, 25s.; best Wigan, 25s.; best kitchen, 23s.; best Orrell slack, 21s.; house coal, retail, from Is. 5d. to Is. 7d. per sack; coke, 23s. per ton; steam coals from about 22s. per ton upwards; Irish coals, at Wolf hill, Queen’s County, from 6s. 8d. to 21s. 6d. per ton at the pit mouth. The import trade of the past week has been more active, but owing to the strike at Garston docks the merchants here are now obliged to get their steamers loaded at Partington. The coaling vessels arriving in this port amounted to 73 as compared with 60 th© week previously, chiefly from Ayr, Garston, Preston, West Bank, Newport. Liverpool, Glasgow, and Whitehaven. The total quantity of coal discharged upon the quays was 26,033 tons. Belfast. . There is a brisk demand for all qualities and the market maintains its firmness, although there has been no change in prices during the week. Supplies have been more plentiful from the other side, and stocks are about an average for the season. City prices are:—Best Arley coal, 26s. 6d. per ton; Hartley, 25s. 6d.; Wigan, 24s. 6d.; Orrell nuts, 25s. 6d.; Scotch house, 22s. 6d.; Orrell slack, 22s. 6d. Quotations ex-quay:—Arley house coal, 22s. 8d. per ton; Scotch household, 19s. 6d.; Scotch steam coal, 17s. to 18s. per ton; navigation steam, 17s. to 18s.; Welsh steam, 20s.; English steam slack, 16s. per ton delivered. Cargoes arriving during the week were chiefly from Ayr, Point-of- Aire, Preston, Maryport, Troon, Girvan, Silloth, Newport, Ardrossan, Garston, Workington, Ellesmere Port, Partington, Glasgow, Whitehaven, Campbeltown, Manchester, Neath Abbey and Sharpness. As a result of the complaints of the local coal merchants regarding the want of sufficient berthing accommodation at the Queen’s Quay, the Harbour Commissioners are arranging for the discharge of coal steamers at the east side of the Aber corn Basin; four powerful new electric cranes have also been requisitioned in order to expedite the landing of the coal. ___________________________ Consequent on having been appointed secretary of the Newbiggin Colliery Company, Mr. Wm. Borradale is severing his connection with the Elswick Coal Company Limited, after a service of about 25 years. The Newbiggin Colliery, although not one of the most extensive, is one of the most up-to-date in the district, and gives promise of great development in the near future. Safety Lamp Glasses: An Interesting Action—In the Manchester County Court, on Monday, before his Honour Judge Mellor, K.C., Messrs. Molyneux, Webb and Co., glass manufacturers, of Kirby - street, Ancoats, sued Messrs. Richard Johnson, Clapham, and Morris, of St. Mary’s-road, Newton Heath, for £6 0s. 7d. for a quantity of glasses intended for miners’ lamps. For the plaintiffs Mr. Kershaw said the question at issue was whether a guarantee was or was not given by the plaintiffs in booking the order for the glasses. The plaintiffs’ case was that they distinctly insisted that the order should be subject to no particular test. They said they had great experience and would do their best to turn out satisfactory goods, but no more. The defence was that the plaintiffs assured the defendants’ representative that the glasses would pass the Home Office test, but he submitted that if that were so the defendants would have inserted the qualification in their written order. As nothing to that effect appeared in the written order, or in a subsequent order increasing the quantity, he submitted that the plaintiffs must succeed. The judge observed that if the test was arbitrary there would probably be an implied condition that the manu- facturers were going to turn out a glass that would meet the requirements. Mr. Kershaw replied that at the time of this order, September 23 last, the Home Office tests were in a purely experimental stage. Mr. Duncan Webb, managing director of the plaintiff company, said that at the time of the order no glass manufacturer had been able to fulfil the test of the Home Office. He knew of many who had tried and failed to come up to the standard. His firm had sup, plied thousands of glasses which were in use to-day. If the Home Office had insisted on the test at the time of this contract, trade would have been at a standstill. He plainly told the defendants’ representati ve that the order must be an open one without any conditions. For the defence, William Francis Comer, traveller for the defendants, said that, as a result of the Home Office test, they had hundreds of thousands of lamp glasses in their possession which had become useless. Before the order was given, Mr. Webb said he fully understood the test required, and that the glasses would be up to the standard. When the first consignment came to hand he applied the test, found the glasses did not stand it, and at once cancelled the order. It was not necessary, he considered, to send the glasses to the Home Office, as he had the means of applying the test himself. He had applied it in connection with supplies from German firms who had already got on to the approval list of the Home Office. After reading several orders issued by the Home Office, the judge said he was not satisfied that the plaintiffs had proved their claim. One of these orders was in force at the time of the contract, and it clearly stated that lamps would be rejected the glasses of which did not withstand the test of 210 degs. Fahrenheit in a hot-air chamber and plunging afterwards into water of 60 degs. There would consequently be judgment for the defendants, with costs. EXTENSIONS TO THE COKING PLANT AT THE CARGO FLEET IRON COMPANY’S WORKS. [From a Correspondent.] The existing coke-manufacturing plant at the Cargo- Fleet Iron Company’s Works, Middlesbrough, consists of 100 Koppers regenerative coke ovens, with tar and ammonia recovery plant, but not the direct process or benzol recovery. A third battery of 50 Koppers regenerative coke ovens is now under construction, and the old by-product plant is to be abolished and a completely new plant erected to work on Koppers’ patent direct recovery principle for the recovery of tar and sulphate of ammonia. The work also comprises a benzol plant for the production of rectified spirit, a coal storage bunker of 690 tons capacity, provided with coal conveying machinery, a fixed coal-compressing station, consisting of two stamping machines and a single trough-charging apparatus. The by-product plant is capable* of treating the gases evolved from 6,000 to 7,000 tone of dry coal per week. The Koppers oven is of the vertical flued type, and possesses many features not to be found in any other oven, more particularly as regards the arrange, ments of the heating flues and regenerators and the facilities for inspection. The gas and air for combustion are separately distributed on each side and along the whole length of the oven, and combustion is caused to take place in each vertical flue. Each oven wall is formed of about 30 vertical flues, and there being a gas jet in each flue, each oven is heated at about 60 points. At the top of the ovens and overall the vertical flues, openingsjare provided for giving access for inspection and regulation, which facilities do not obtain in any other system. Very simple means are pro- vided for the regulation of the combustion in each flue,, which is such that it is easily possible for the walls of the ovens to be absolutely uniformly heated from end to end. It is this ease of regulation which distinguishes the Koppers oven from all other types, and which has been the cause of the great success which it has enjoyed. Uniformity in the heating of the ovens not only results in the production of a homogeneous coke, but enables the charges of coal to be burnt off more quickly than in ovens where such uniformity does not prevail, besides which it effects great economy in the consumption of the heating gas. It is owing to this economy in the heating of the ovens that the surplus gas from the Koppers oven is greater than that obtained from any other system. The Koppers oven is designed to work on the waste heat principle and also on the regenerative principle. Both designs are identical so far as the arrangement of the heating flues and the facilities for inspection and regulation are concerned, and the advantages claimed for the regenera- tive oven as pointed out in the foregoing apply equally to the waste heat oven, the only difference between the two constructions being that in the case of the waste heat oven comparatively cold air is employed for combustion of the heating gas, whilst in the regenerative type the air for ccmbustion is heated to a high degree in regenerators designed on Siemens’ principle. Of all the ovens which are being built at the present time in all parts of the world, at least 80 per cent, are of the regenerative type, and are mostly of Koppers’ design. The advantages of this oven over the waste heat types are very important and do not seem to be so fully appreciated in this country as on the Continent and in the United States, as it is practically only in this country where waste- heat ovens are now adopted. The advantages to be derived from the employment of regenerative ovens were recognised by the Cargo Fleet Company in deciding upon their plant, and this type of oven was therefore selected in preference to the waste heat description. The distinctive feature of the Koppers regenerative oven lies in the employment of separate regenerative chambers for each oven, so that each oven is entirely independent of its neighbour. This construction permits of the air for com., bustion and the chimney draught being separately regulated—a feature which obtains in no other system The principal advantage derived by the use of regenerative ovens is that the surplus heat in the coal (i.e., the heat over and above that which is required for heating the ovens) is produced wholly in the form of a combustible gas, instead of as a hot waste gas, which is a product of the waste-heat oven. The combustible gas is of the same character as that produced at town gas works, and can be employed for illuminating purposes, or for any other purpose for which town gas is suitable, and mere particularly for consumption in gas engines, in which case from two and a-half to three times the power can be generated than from the steam raised by the utilisation of the gas in steam boilers. Where power is required in the form of steam, it is very generally thought that waste heat ovens should be adopted, but the fact is often overlooked that with these ovens it is essential for & special range of boilers to be erected in close proximity to the ovens; whereas, with the regenerative ovens, the surplus gas can be conveyed almost any distance without loss for firing existing boilers. It might be added that the surplus gas from Koppers’ regenerative ovens will yield exactly the same quantity of steam per ton of coal carbonised as the hot waste gas from waste-heat ovens. The coal is conveyed from the hopper to the stamping station, and is charged into the ovens in the-