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Se oe ----V--_ MARINE REVIEW. rcs Double Cylinder Boring Machine. This machine is designed for rapidly boring two cylinders at once. It is peculiarly useful in works where a large number of cylinders of the same or nearly the same size are to be bored. The machine is usually made with a bed 11% feet long fitted with a head stock carrying two heavy spindles 5 inches to 9 inches in diameter, with bearings adjustable for wear, placed with their centers 31 inches apart horizontally. These spindles are driven by a 30-inch cone pulley with four steps for 5-inch _ belt geared-fifteen times. The' boring bars are inserted in these spindles SS ee ee - LAR oe EL ES a . Se . ¥ 'oh Srey my Pos ae ' nee a 4 a AEN "= . and have their outer ends supported in a double tail stock fitted with removable bushing and ajustable upon the bed The work table is 66 inches by 42 inches, which dimensions, however, can be varied when required. The table traverses by hand or power 45 inches upon bed. It has four automatic feeds from j; to ¥ of an inch. These feeds can be changed at slight expense to any desired figures and the bed can be lengthened or shortened, within reasonable limits, to suit requirements. From the top of the table to the center of the spindle is 19 inches and the bed is 5 inches below the top of the table. The total swing over the bed is 48 inches and over the table 38 inches. This special machine has been designed by Messrs. Bement, Miles & Co. of Philadelphia. It is particularly useful in shops where large numbers of small cylinders are being manufactured. One of these machines has lately been installed in shops where they are manufacturing air com- pressors, rock drills and similar work. It has proven in this connection very efficient and satisfactory. Hull Insurance Tariff, In the last issue of the REVIEW there was printed the tabulated statements of insurance rates on hulls for 1896. The printed tariff, which has since been issued, contains rules regarding deductions, additions, etc., as follows: Deductions--Deduct for double bottom steel vessels when sheathed with at least 5 inches of hardwood, 10 per cent.; for total loss and general average only, all vessels, 25.per cent.; for total loss, actual and constructive only, all vessels, 30 per cent.; for excepted fire risk on steam craft, pro rataof 1 percent. Deductions for general loss and general average, or total loss, are to be made after deducting for fire risk if ex- cepted, Deduct for harbor tugs with lake privilege to the extent of 20 miles, 1 per cent. Additions--Add for wrecking privileges on tugs 1 percent. Where full wrecking privileges are not desired polices may be endorsed "per. mission to wreck for % per cent. additional for each service rendered to Oct. 1 and thereafter at 1% per cent for each service rendered." Add for seven-eighth collision clause with $500 average, 1 per cent.; for agree- ment to make loss or damage by fire to be settled on conditions of special clause for season, 50 cents; with deductions for time expired and can- cellations as noted below, or for the year, 75 cents, this clause to be at- tached to such marine policies only as include. fire risk. Fire and collision only--A land A1¥% steamers fire and collision done and sustained, $1.75. For fire policies only: Steamers--A 1 and A 1%,1 per cent per annum, with 80 per cent. clause; A 2 and A2¥%,1% per cent. per annum, with 80 per cent. clause; B 1,2 per cent. per annum, with 80 per cent. clause. Tugs--Coal burners only, 1% percent. per annum, with 80 per cent. clause, which latter is obligatory in all cases. Excluded from tariff--Passenger steamers navigating one lake only are excluded from the operations of the marine portion of this tariff. ' Suspensions fora A2 class and below--An allowance may be made of 6 per cent. of the ex-fire season rate for each thirty consecutive days when a vessel is laid upin port during the life of this policy, but it is obligatory on the part of the assured to give written notice to the com- pany of said suspension, the policy to remain suspended until written notice is given the company to reinstate the policy. This rebate, how- ever, is not to be allowed while the vessel is subject to or undergoing repairs, the expense of which is patticipated in by the insarance com- panies. 3 Be Rules--No allowance or deduction shall be made for portions of months expired except as noted below. No more than six months credit on premiums, and all notes must mature on or before Noy. 1 on season risks; discount for cash at the rate of 6 per cent. per annum. Extensions--On steel and A 1 and A 1% wooden steamers 2 per cent. of premium paid per day after Dec. 10 to complete voyage, providing steamer is at sea noon of Dec.7. On Al andA1¥% sail and tow barges 4 per cent, of premium paid per day after Dec. 1 to complete voyage, if-at sea noon of Nov. 30. Oa A 2 and below, the charge for steam vessels is to be 2 per cent., and on sail vessels and tow barges 4 per cent. of the season rate per day on the form of policy issued, provided vessels are at sea noon of Nov. 30. Such extensions to be for five days from noon of Dec. 1, provided application be made for such extensions before noon of Dec. 1. A further extension may be granted from noon of Dec. 6 on steamers only, and only for the purpose of completing an unfinished voyage com- menced prior to noon of Nov. 30. The charge for such extension shall be 5 per cent. of the full season rate per day, on form of policy originally issued. The classification of Inland Loyd's and Canadian Loyd's regis- ters for 1896 is to governas to class and value of all vessels, and on A 1 and A 1% steamers and A 1 sail the value in policy is not to be less than 80 per cent. of the valuation in the register, and not to exceed register valuation ; on A 2 steam craft and below, and A1¥% sail barges and below, and all tugs, the value in policy is not to exceed 90 per cent. of the valua- tion in the register nor to be below 80 per cent. Deductions--Up to Sept. 1 a deduction to be allowed for each and every five days, until the policy attaches, of 1 per cent. of the full season rate. The last six days of any month of thirty-one days shall be consid- ered five days only. For risks not attaching until Oct. 1, 40 per cent. of season rate; for risks not attaching until Nov. 1, 55 per cent. of season rate. No deduction for partially expired months of September, October and November. Cancellations--For each 10 days in April covered and unused, 3 per cent. of season rate; May, 2% ; June, 2% ; July, 232; August, 234; Sep- tember, 4; October, 5; November, 6; December, 1 cent per $100; Janu- ary, 1 cent per $100; February, 1 cent per $100; March 1 cent per 100, The last eleven days of calendar months of thirty-one days to be con- sidered as ten days only. Iu figuring under the head of " deduc- tions' and "cancellations," the season rate on steel hulls to be consid- ered the yearly rate less 4% per cent., and on A 1 and A1% wooden hulls, less % percent. If policy is cancelled before running one month, no return premium to be allowed for any portion of the said month. Statistics Relative to Coal Freights. In view of the general attention that is being given just now to the question of lake freights for the coming season, the accompanying table of coal shipments to Lake Superior has been prepared from the army engineer reports of St. Mary's Falls canal traffic: Soft Coal, Hard Coal, Total Season of net tons. net tons. net tons. BO Oe a eeecehe toeeec Sabie ane erecta =e 2,133 885 440,477 2,574,362 TS OA acct caters cine tele slete soonest sabstejeisievotamreiote apart 2,264,314 532,870 2,797,184 MRO Callie sce nec ceeeceee na crenconiencn sisise 4,398,199 973 347 5,371,546 This table shows that there was shipped to Lake Superior ports in 1894 2,797,184 net tons of coal, hard and soft, while the movement in 1895 aggregated 2,574,362 tons, ora decrease of 222,822 tons. When naviga- tion opened in the spring of 1895 there was on dock at Lake Superior ports a surplus of abcut 500,000 tons of coal. Itis estimated now that the surplus when navigation cpens in about a fortnight will not be more than 100,000 tons. If we add therefore the 1894 surplus of 500,000 tons to the shipments of 1895 (2,574,362 tons) we have a total of 3,074,362 tons, from which there is to be deducted the surplus of 100,000 tons now on hand, leaving 2,974,362 tons as the consumption during the year end- ing with the present month. If consumption during the coming year is to be even equal to that of the past, it would follow that shipments during the coming season must exceed those of 1895 by 400,000 tons, which is the difference betwe-n 2,974,362 (consumption during the year ending May 1, 1895) and 2,571,362 (shipments in the season of 1895). Some time ago the REVIEW suggested to Commander Sigsbee, U.S. N., whois in charge of the United States hydrographic office, that a table giving distances in statute miles between the numerous ports on the lakes would prove valuable aboard lake vessels as well as in the offices of companies managingthem. Tables of this kind have been pre- pared in the past but there has always been some question as to their re- liability and none of them were complete. The hydrographic office has now issued a chart of convenient size giving distances between 119 lake ports. It sells at 50 cents and may be had from the MARINE RE- view, 409 Perry-Payne building, Cleveland.