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1902.] MARINE REV'FW AND MARINE RECORD. 31 TTRADE NOTES. Mr. TT. F. DeGarmo, eastern representative for the Falls Hollow Staybolt Co., Cuyahoga Falls, O., has changed his head- quarters from Philadelphia to No. 60 West Ninety-third street, New York. The Browning Engineering Co., Cleveland, manufacturers of conveying machinery, recently purchased from the Westinghouse Electric & Mfg. Co. a large number of- railway-type crane motors, ranging in capacity from 25 to 50 H. P. The Tuckett Stoker Co. of Wilmington, Del., was chartered at Dover last week to manufacture, sell and equip mechanical stokers. The incorporators are Robert L. Gale Alfred 8S. J. Owens of Baltimore and George W. Todd of Wilmington, Del. The Chicago Pneumatic Tool Co. has issued a new cata- logue devoted to the pneumatic hoists formerly manufactured by the Chisholm & Moore --Mfg. Co. of Cleveland.. Complete de- scriptions are given of these motor hoists and the little catalogue will be sent to anyone upon application. The pocket catalogue of the Crane Co. is a substantial book of 464 pages, bound in cloth. It embraces the full line of Crane valves, fittings, steam specialties, engineers' supplies, etc. The company makes upward of 7,000 articles of this description for use with steam, water or gas, and its. facilities and varieties of goods are said to be the largest in the world. The catalogue is very conveniently arranged and indexed so that any article de- sired can be immediately turned to. 'The book is thoroughly illustrated. The Hoffman Automobile & Manufacturing Co. of Cleve- land was recently purchased by a party of well-known Cleveland capitalists, and reorganized with a capital of $100,000. The direc- tors are: Dan'l. Shurmer, formerly of Scofield, Shurmer & Teagle; I. F. Newman, general manager of the Cleveland & Buffalo Transit Co. and president of the Great Lakes Towing Co.; L. E. Hoffman who was with the former company as vice-president and general manager; A. D. McLachlin, formerly purser of the steamer City of Erie; A. E. Hatch, F. 5. Masten of the firm of Goulder, Holding & Masten, and FE. D. Shurmer, assistant general manager of the Cleveland & Buffalo Transit Co. Officers are: E. D. Shurmer, president; L. E. Hoffman, vice-president and general manager; T. F. Newman, secretary, and A. D. McLachlin, treasurer. The company now has on the market a steam engine of high grade that is giving universal sat- isfaction. They also have under construction a gasoline ma- chine that has many advantages over anything now upon the market. 'his machine will be sold at a very low price, and will, it is promised, meet the popular demand for a first-class runabout at moderate price. The general offices of the com- pany will be at the manufacturing plant, Cleveland, which is complete in every detail and is located at the corner of Lake and Muirson streets. : ROBERTS' WATER-TUBE BOILERS Our attention has been directed to a coincidence regarding the Roberts' safety water-tube boiler that is certainly worthy of note. Five leading ship builders of the United States who own steam yachts have them equipped with this type of boiler. This is certainly a strong endorsement. The builders are Mr. E. P. Morse of the Morse Iron Works, Mr. C. B. Orcutt of the New- port News Ship Building & Dry Dock Co., Mr. W. G. Nourse of the Marine Iron Works, Mr. Charles E. Hyde of the Bath Iron Works, and Mr. Lewis Nixon of the new coast combination, the United States Ship Building Co. The Union Iron Works of San Francisco, when in need of boilers for their ships a few years ago, adopted and installed the Roberts' boiler without competition, in consequence of its success in vessels which they had built previously and in which they had installed the boiler. Mr. J. F. Craig of the Craig Ship Building Co., Toledo. recently stated: "We are figuring on building a steam yacht for ourselves to come out next year, and you may rest assured that if the vessel is built she will be equipped with Roberts' boilers." Mr. Hyde says, among other things: "It gives me great pleasure to speak a good word for the Roberts' boiler." Mr. Orcutt says: "I have used a Roberts' boiler in my yacht for ten years or more, and I am much pleased with its performance. Repairs have been almost nill.' Mr. Morse says: "I believe it is the best yacht boiler in the market, without exception." Mr. Scott, of the Union Iron Works, replied to an inquiry concern- ing this boiler as follows: "We are erecting a pair of these boilers in our own works, and we have no hesitancy in endors- ing them fully.' Mr. Nourse of the Marine Iron Works, Chicago, wrote recently: "Not only from a practical but also a com- mercial standpoint I consider the Roberts' boiler as the most suc- - cessful of any of the water tube type." President Nixon of the United States Ship Building Co. says he is pleased to endorse the boiler in the highest terms. PROPULSION OF SUBMARINE BOATS. In an interview in Washington Lieut. Com'dr. John R. Ed- wards of the United States navy, who is known as an expert student of marine propulsion, says that the submarine boats of the future should be propelled by electricity. "It is impossible to utilize steam for submarine sailing,' con- tinued Com'dr. Edwards, "as the heat would be too great. In- ventors, therefore, turned to gasoline motors for surface work and the electric storage batteries when submerged. On the ques- tion of motive power, opinions of naval officers differ. I be- lieve gasoline motors should be abandoned altogether, while others hold that they are valuable for surface work. These give their boats a radius of action they could not secure by the use of storage batteries exclusively. 'The French boats, I understand, use electricity alone, but this limits their range to some 40 miles, and makes them comparatively valueless, except for harbor defense. "I believe it would be possible to build submarine torpedo boats sufficiently large to accommodate batteries which would give a radius of action of several hundred miles. The boats now being constructed for the navy are about 120 tons, and I see no reasons why they should not be built of 200 or-more tons dis- placement. Of course the operation of submarine boats by stor- age batteries exclusively would be a very expensive matter, as the batteries are the most expensive features of the boats. Those in the Holland cost at least $25,000, and larger ones would be pro- portionately expensive. "Gasoline as a fluid does not appear to be very dangerous. We have found that liquid gasoline can be handled with comparative safety. You can almost plunge a torch into it without setting it afire." across the Chicago River at e bridge, showing the obstruction request: accompanied by the necessary data. TWO VIEWS OF Tae SCHERZHR ROLLING LIT BRIDGE ntrance to the Grand Central Station, Chicago, before and after the removal of the old center pier swing to navigation caused by the center pier and protection pier of the old swing bridge, and the wide and unobstructed channel given by the new Scherzer Rolling Lift Bridge. ins Preliminary Sketches and estimates of cost furnished without charge to responsible parties in any part of the world, upon THE SCHERZER ROLLING LIFT BRIDGE CO..,Main Offices: 1616 Monadnock Block, CHICAGO, U.S.A.