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MARINE REVIEW. oe] - 6 Lake Erte Borter Works, Burra.o, N. Y. THE Best EQuipPED PLANT IN AMERICA For THE MANUFACTURE OF /[U22k8s BOILERS. TO WHOM IT MAY CONCERN: With the belief that no one would maliciously infringe the patent right of others, and with the hope that by calling Lake Steamship Owners' attention to the fact, that we own exclusively what have been commonly known as the HOWDEN HOT DRAFT PATENTS, they will not either be persuaded that these can be ignored or induced to put in apparatus misrepresented to be what we exclusively own. We own the right to manufacture, sell and apply this system to the Great Lakes, the St. Lawrence, the connecting waters, and all territory adjacent thereto. And further, can apply the system to ships built by us for the Atlantic or Pacific Oceans. To the manufacturers of infringing apparatus, we only wish to say that we will protect our rights, and warn them that'it will be done diligently. ; DETROIT, MICH. DETROIT DRY DOCK COMPANY. DRY DOCK ENCINE WORKS. | Fe <.. J. DUE LS, i 16 Atwater Street W., DETROIT, MICH., CONTRACTOR FOR Pile Driving and Foundation Work. Dry Dock Building; builder of Detroit Dry Dock Co's New Dry Dock. PATENTEE AND MANUFACTURER OF Which is very effective, in that it is forced by steam in the down stroke, (whico is not the case in other pile drivers), making the ram hammers. TWO SIZES of these Hammers are made, one weighing 6000 Ibs, and one 7000 Ibs. 28" THE WORKING OF HAMMERS GUARANTEED. THE BUFFALO AUTOMATIC. A GRADING INJECTOR. The movement of the steam and water valves and their relative positions are such that the supply of water will always be in proportion to the sup- ply of steam admitted to the jets. CAN BE GRADED iii to run continuously on any WH Steam presssure from 20 to ww" 140 Ibs. Operated entirely by one handle, both in stop- ie | ping and starting, as well . as in grading the supply of steam and water. WAS74Fasle Ejectors, Duplex Tube Scrapers, Cyl- inder Oil Pumps Improved Glass Oil Cups and Lub- ricators, Compression Grease Cups, Improved Ball Gauge Cocks, and other Steam Users' Specialties. end for Catalogue, mentioning this paper. SHERWOOD MFG..CO,, (Mtrs.) BUFFALO, N.Y, Operated entirely by One Handle. -- in either Steam for Suction Pipes. = Py = Se Dock Building, Bridoe and Trestle Work, Nnpuls Steam Pile Driving Hammer, strike a quick and powerful blow. One pave e of this Ham- mer over others is, that the steam hose is inside the leaders, and © not in the way of hoisting the piles as is the case in other steam - AN EXCELLENT LIBRARY FOR A MARINE ENGINEER, CHEAP--KEY TO ENGINEERING; WHAT AN ENGINEER SHOULD KNOW ABOUT ELEC TRICITY;, ENGINEERS' CATECHISM. ANY ONE OF THESE ARE WORTH A DOLLAR, BUT ALL THREE CAN BE HAD FOR $1. SEND TO THE MA- RINE REVIEW, 516 PERRY-PAYNE BUILDING, CLEVELAND, 0. MONEY. REFUNDED IF NOT SATISFACTORY. eines "The most perfect feed water heater and purifier we ever saw.'--R. HAMMOND. IN PRACTICAL USE ON 25 LAKE STEAMERS. Every Purifier Warranted to Remove all Sediment or Scale-Forming Substance. ROBERT LEARMONTEL crew: 200 BOUCK AVENUE, z - - - - BUFFALO, N.Y. REFERENCES. A.--Settling chamber. B.--Boiler. C.--Feed pipe to boiler. D.--Steam pipe. E.--Water supply pipe. F.--Check valve. G.--Spray disks. H.--Spray chamber. I.--Equalizing tube. J.--Blow-off pipe. K.--Automatic shut-off valve. L.--Division plate. M.--Deflecter and separator.