The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

ia - MARINE REVIEW. Crank-Pin Oil Cup. There has always been a demand among engineers and engine build- ers for acrank-pin oil cup, which would give a steady flow of oil in just the right quantity to keep the crank pin from heating, while vot allowing sufficient oil to pass to it so as to cause a waste. Many schemes have been devised for effecting this result, but up to the time the Penberthy Injector Company placed their safety crank-pin oiler on the market, about two years ago, there had been nothing devised that was entirely satisfactory. The safety cup met with a very rapid sale, owing to its simplicity of con- struction, and its very satisfactory operation. The Penberthy Injector Company, however, is noted for never being satisfied until the articles which it manufactures are as perfect as skill and ingenuity can make them. Recognizing the fact that their cup as originally made had one or two weak points about it, they set to work to remedy these defects and have recently produced their improved double-feed crank-pin oiler, The improvements have lessened the number of parts of which the cover is composed and have also simplified the construction of the cup, while at the same time allowing of a much finer regulation than any other cup made. A careful reading of the following description will show the points wherein the cup is superior to others: H is the plunger, which rises and falls with the motion of the engine, forcing part of the desired amount of oil to the crank pin, while at the same time the oil is flashed on top of the plunger and passes down through its hollow center, thus giving two distinct and separate feeds, so that in using this cup there are two chances against its feed becoming clogged. -K is the cover of the cup, containing two passageways P P. One of these is to allow the air to enter the cup and the other is the vent hole by which a EE ----s =----sA Soe the air in the cup passes out. On top of the cover is an escutcheon S op- erated by means of a handle N passing throughit. When the cup is in operation, this handle is turned hard to the right, bringing the holes in the escutcheon out of line with the holes in the cover of the cup, and the " escutcheon being threaded and turning on a corresponding thread on the cup cover, allows of an absolutely tight seat being made between the es- cutcheon and the cover so that it is impossible for the oil to spill out while the cup is working. To fill the cup the handle N is turned to the left until the holes in the escutcheon and the cover are in line, when the oil can be quickly poured in from a spring bottom can, and as the air is allowed free vent through the vent hole there is no spilling of oil possible with or- dinary care. In this manner the cup is filled without changing the reg- ulation in the least. The screw I passing through the escutcheon allows it to turn to the left just a sufficient distance to bring the holes in line. The feed is regulated by the regulating screw R which admits ofa reg- ulation as fine as 7,55 of an inch or less. This regulating screw passes through the stuffing nut Mand through the packing I in the same man- ner that the stem of a globe valve passes through its stuffing nut, and the tension on the regulating screw is altered by turning this stuffing nut M same as the packing is tightened or loosened on a globe valve. As will be seen the cup is simplicity itself, and it is impossibie to get it out of order. The plunger H having a square shoulder against the bottom of the cup, the oil stops feeding as soon as the engine stops run- ning and there is therefore no waste. Owing to its fine regulation, it can be set to feed just the desired amount of oil and with the proper size cup it can be so regulated as to run for a half or a full day as desired, so that the engine need never be stopped to refill the cup, and the only attention required from the engineer is to fill it at the proper times as it does its work automatically. The manufacturers, the Penberthy Injector Com- pany of Detroit, Mich., will be pleased to send descriptive circulars and quote prices on application. River Steamer Unique. A rough sketch of the McElroy steamer, being built at Marine City for the Detroit and Lake St. Clair route, is printed herewith. 'She is 175 feet long, 26 feet beam over all. The quadruple expansion engines of this boat, which have caused a great deal of speculation as to her speed, and which are being built by the Frontier Iron Works of Detroit, were illus- trated and described in the REVIEW of May 10. The hull was designed by Mr. C. McElroy, the princpal owner, who, althogh not a practical archi- tector builder, has a general knowledge of vessels. It is now said that the boat will be named Unique. She will be commanded by Capt. John Robertson, formerly United States inspector of steam vessels in one of the river districts. The Pilot Charts. The REVIEW has a limited number of copies of the new pilot chart of the lakes, issued by the hydrographic office. Masters of lake vessels can have them by calling during the coming week. The supply will not last long. Regarding the publication of these charts the chief hydrographer, Commander Sigsbee, says: " The first edition of the pilot chart was only 2,000 copies. The office is bound down to a considerable extent, by the requirements of law; that is to say, we are supposed to charge for our publications the price of print- ing and paper, and you will notice that on the new'pilot chart the price of 50 cents is set down. In order to circulate this chart with the utmost liberality consistent with the restrietions placed upon the office, it is is- sued as a pilot chart and help in its preparation was invited from every side. This enables the office to distribute the chart without charge in directions where help might naturally be expected., for an office of this kind depends very largely for its information on exchanges everywhere. "The office has ready for the press a book of sailing directions--that is to say a descriptive nautical book--of Lake Superior, but our appropri-. ation for printing is now so low toward the end of the fiscal year that we will not be able to send the book to press until after the first of July," FFICE OF ENGINEER, NINTH AND Eleventh Districts, Detroit, Mich., May 14, 1894, Proposals will be received at this office until 3 o'clock p. m. of Thursday, the 31st day of May, 1894, for furnishing the materials and labor of all kinds necessary for the completion and delivery of the metal work for tower for Twin River Point light Station, Wisconsin. Plans specifications, forms of proposal, and other in- formation may be obtained on application to this office. The right is reserved to reject any or all bids, and to waive any defects. M. b. ADAMS, Major of Engineers, U.S. Army, Light House Engineer. : REASURY DEPARTMENT, OFFICE OF General Superintendent U. S. Life-Saving Service, Washington, D.C., Mey 1, 1894, Sealed proposals will be received at this office until 2 o'clock, p. m, of Thursday, the 31st day of May, 1894, for furnishing supplies required for use of the Life-Saving Service for the fiscal year endin June 30, 1895; the supplies to be delivered at such points in New York City, Grand Haven, Mich , and San Francisco, Cal., as may be required, and in the quantities named in the specifica- tions. The supplies needed consists of Beds and Bedding, Blocks and Sheaves, Cordage, Crockery, Furniture, Hardware, Lamps, Lan- terns, etce.; Lumber, Medicines, etc.; Paints, Oils. ete.; Ship Chandlery, Stoves, etc.; Tools, and miscellaneous articles; all of which are enumerated in the specifiations attached to the form of bid, etc., which may be obtained upon application to this office. or the Inspector of Lite-Saving Stations, 24 State street, New York City; Superintendent Eleventh Life-Saying Dis- trict, Grand Haven, Mich., and Superintendent Twelfth Life-Saving District, Appraisers' New Building, San Francisco, Cal. Envelopes con- taining proposals should be addressed to the "General Superintendent U.S, Life-Saving Servy- ice, Washington, D. C.,'>and marked on the outside "Proposals for Annual Supplies." The right is reserved to reject any or all bids and to waive defects, if deemed for the interests of the Government,