June 19, 1914. THE COLLIERY GUARDIAN. 1383 show the world that every appliance for safety and mak- ing coal cheap was utilised by mining people, and that they meant to set their house in order and keep Great Britain to the fore as they had done in times past. Manchester was a splendid place for exhibitions. It was a centre for the coal mining industry of this country, a centre for the production of mining machinery. And, as in previous years, Manchester had shown that she could make industrial exhibitions successful, so he hoped Manchester would succeed again—by getting people to come to see the Exhibition and appreciate the exhibits, and by showing she was ever ready to produce that which was necessary for the country. In this Exhibition it would be seen that British people were to the fore in matters of safety and appliances that would enable them to meet the competition of the world. It was because they had leaders like Lord Aberconway to show them the way to make the most of their coalfields that they were able to maintain that prosperity that was so necessary to this country. Two things were wanted. First, to secure the safety of the workers, and a bit of profit afterwards. That was what they wanted, and that was what they desired for this Exhibition. Lord Aberconway said he had been invited to perform the pleasing duty of declaring that great Exhibition open. He supposed it was because his practical interest in the coal trade and everything that appertained to it was very large. For the greater part of his busness life he had been connected with colliery operations, and at the present moment he supposed he was responsible for rais- ing something like 10 million tons of coal a year, and as a manufacturer and shipbuilder he consumed at least a million tons himself. Therefore he welcomed anything which showed them how to cheapen the cost of produc- tion to mine owners and consumers alike, and this particular Exhibition was showing what could be done in that direction. They were concerned also very much with the question of safety. At present they were considering the question of lamps. Was electricity to take the place of the old safety lamp? That was receiving the greatest consideration after a prolonged investigation by mining experts. Then there was the question of ventilation. Under the new Act they had to reverse their ventilating arrangements, and he need hardly say that arrangements of that kind demanded the utmost ingenuity. Then they wanted good pumps, not merely for working their collieries, but to help them in their deep sinking. He need hardly remind his hearers of the difficulty they had found in some of the deep sinkings in the Doncaster district, where they went many hundred yards deep through water-bearing strata. Again, in looking over the Exhibition he saw men dressed like divers; they were equipped for work of rescue in mines after an accident. In all the coal districts now they had rescue stations, fitted with rescue apparatus for use in an emergency, and no money nor thought had been spared to produce the best apparatus for that purpose. He need hardly say that the importance of producing coal in great quantities and as cheaply as possible was never more to the front than it was to-day. There was the fact of the opening of the Panama Canal. They knew that would to a certain extent stimulate the American export trade in coal. They knew that America was bringing materials from the Mediterranean, and the ships that came back would be able to bring coal at rates which might compete with British coal seriously. At the same time the Board of Trade figures showed that year by year not only was our home consumption increasing, but our exports were increasing by leaps and bounds. Why? Because the industrial prosperity of Europe and South America was also increasing by leaps and bounds. Foreign railways and ships found our coal better than any they could get elsewhere, and as long as we had increasing prosperity abroad and increasing trade at home, there was no fear but that our collieries would get all the orders they required. He only regretted that the miners, getting high wages, averaging 10 to 12 shil- lings a day, would not work their full time and enable all the collieries to get out as much coal as they were equipped for. That might account in some measure for the high prices of coal. He was glad to think the men were getting a well-deserved remuneration for their work, and he was glad to think of the improvements that had been made by Parliament or the Home Office, to protect them in the exercise of their industry. He would not detain the assembly longer save to congratulate the organisers of the Exhibition on the success which had followed their efforts. He trusted those who exhibited would have no cause to regret the enterprise which had brought them there. He had very great pleasure in declaring the Exhibition open. On the proposal of Mr. Charles Pilkington, seconded by Mr. Frank A. Hopkinson, a vote of thanks was heartily accorded to Lord Aberconway for opening the Exhibition. Mr. Pilkington congratulated the committee on having got the right man to do this work—a thing not always easy to do. They had chosen a man of wide and varied experience, and one able to give them good advice. Thanks were accorded to the Chairman, on the motion of Mr. J. Butterworth, seconded by Capt. SCHLAGINTWEIT. THE EXHIBITS. As the Exhibition remains open until June 27, there is no doubt that many of the stands will acquire an increased significance before the close. The opening day, however, found the exhibits well advanced towards the stage of completion if we except a few gaps in the case of newcomers. Before dealing with the exhibits in detail, it may be observed that this Exhibition, in a greater degree than any other that we can recall, represents the variety of appliances that go to make up the equipment of the colliery. Everything, indeed, seems to have found its place; if we exclude heavy plant such as winding engines and coke oven batteries, which can only be adequately presented in the form of models or photo- graphs. In such cases we must perforce content ourselves with the accessories, and many of the latest types of winding engine controllers, of instruments designed for control of working temperatures, etc., may be seen. Over and above everything else there is an absence of the holiday element : everywhere is to be found the atmosphere of business, of which Manchester is redolent. This is an important factor, we feel, in the success of such an enterprise. An account of the more prominent exhibits follows :— STEINLE & HARTUNG. On this stand will be found many articles of interest, particularly for colliery owners and engineers in general. This firm is a very old-established one, and has made a speciality of heat recording apparatus and governors for engines for over 30 years, and the prin- cipal exhibits consist of a variety of the foregoing articles. Three different types of pyrometers and ther- mometers are handled by Messrs. Steinle and Hartung. Fig. 1 represents a design out of many hundreds which are manufactured of the mercury type, which are suit- ..... -K Ol^ ,30 I ,. . Fig. 1.—Mercury Thermometer with Recording Apparatus. Fig. 3.—Steam Consumption Meter. (Steinle and Hartung.) Fig. 4.—Governor. able for temperatures between —20 degs. to +1100 degs. Fahr. They can be manufactured in almost any shape, and up to 50 yds. away from the source of heat. They can be made with or without recording apparatus, and a number of attachments such as maximum and minimum hands, alarm bells, etc., can be fitted. Fig. 2 represents a recording apparatus, by means of which two sources of heat can be marked on the paper at one time. This is of great use in connection with econo- misers, etc. An ether type is also exhibited, which has been brought out to meet a demand where the dis- tance is extremely great between the source of heat and the position of the dial. They are particularly used for superheater work, and many thousands of these are in use in connection with locomotives, etc. A new type shown is that known as the thermo-electrical type, for registering temperatures up to 1500 degs. Fahr. These instruments can be made of great use where various points of heat are to be registered on one dial, by the aid of electrical cable the various sources of heat are connected up by means of a switch to the dial, and all that is necessary to read the temperature on any desired point is to move the switch accordingly. Messrs. Steinle and Hartung also manufacture the graphite and nickel graphite pyrometers for temperatures up to 2000 degs. Fahr., with or without recording gear. These, however, are of the rigid type for fixed positions on steam plants, etc. A useful instrument is a steam consumption meter which accurately measures the quantity of steam pass- ing through a pipe. The apparatus is of the most simple construction, and is illustrated in fig. 3. A load meter is also exhibited, which enables engineers to read the quantity of steam passing through a throttling valve per second or hour in conjunction with the height of the mercury column. A steam recording meter is exhibited, which records the exact amount of steam, automatically taking into consideration the steam pressure, as well as automatic conversion of the differential pressure, and amongst other articles shown are the density meters, used largely in connection with taking the density of juice and temperatures of various liquids. Messrs. Steinle and Hartung have also for many years made a speciality of governor work for all classes of engines. Various types are shown on the stand of the 14 various sizes of sleeve governors, six series of drum governors, load governors, etc., and these are used for large pumps, compressors, hauling engines, gas and Diesel engines, pneumatic engines, oil servo- motors, turbines, etc. An example in shown in fig. 4. i » , IIJ Il • ■ ' k ? < ' k Fig. 2.—Recording Apparatus for Two Sources of Heat. PROTECTOR LAMP & LIGHTING CO. LTD. This exhibit comprises a complete lamp room instal- lation, consisting of miners’ safety lamps (which have passed all the Home Office tests) with single and double glass, to burn colzalene spirit or oil, fitted with the latest approved unpickable magnetic or lead plug locks, patented combustion tube lamps, lamp room fittings (including lamp stands, motors, dynamos, low tension re-lighting machines, magnetic unlocking machines, cleaning machines, filling machines, automatic and otherwise, accumulators, coils, rivet moulds, brushes, mops, gauzes, toughened glasses, etc., etc.). There are also shown enamelled iron colliery notice- plates, tablets, number plates, etc. A patented re- lighter is one of the novel features of the exhibit. This can be carried in the waistcoat pocket. The exhibit further includes several of the firm’s other . specialities, including all types of castings and machine work, also patented Hawgood’s reversible spring hinges, Citadel door fasteners, Climax valves, etc.