April, 1914 seams, mending cracked plates, build- ing up corroded plates, caulking leaky rivets, welding in the flues, etc. The last operation is quite important al- though very simple, because leaky flues are sometimes very mean things to handle. The most approved meth- od and the one in use on practically 2,000 boilers today consists in ex- panding, beading and prossering the flue in the usual manner and then go- ing around the edge of the bead where the tube has been flanged over and depositing metal along the edge, thus tying the tube and the flue sheet together and making a joint which is both tight and strong. Caulking Plates This system is also applicable for caulking the plates of steel vessels, welding the framework, caulking the deck seams when made of steel plates, repairing broken = shafts, propellers, stern posts, rudders, engine frames, "cranks, connecting rods, cylinders, and in fact all classes of repairs as well as making joints in new construction. This will no doubt appeal to some of our readers as being a very radical step to be taken by the average ma- rine engineer, and this is undoubtedly true, but the fact remains that this is being done today and that those con- cerns who are using the C. & C. auto- matic system of electric welding have a great advantage over their com- petitors. The United States Steamboat In- spection Service sanctions the use of electric arc welding for boiler repairs, for caulking seams, welding short cracks in plates, building up corroded surfaces of moderate areas, etc., and at their last meeting in Washington decided to reduce their restrictions and allow a more general application of electric welding on vessels coming within their jurisdiction. This is a step in advance and there is no doubt that the time will come when a free hand will be given ship owners in this" country to have practically all kinds of electric welding. done, as is the case in Germany and other foreign ~ countries today. America is really behind the world in this respect, and it seems too bad that vessel owners and operators should be so_handi- cappd. In view of the rapid adop- tion of the C. & C. electric arc weld- ing outfits for marine repairs during the last year or two, and especially during the past winter, the barriers of ultra-conservatism will no doubt soon be broken down and the field thrown open. All marine men know the great losses resulting today from delays in getting repairs made, as well as the THE MARINE REVIEW enormous cost of performing compar- atively simple operations. For in- stance, it seems like robbery to charge $25 or $30 to weld around a fire door in a boiler, and yet this amount is being charged by a certain repair man today. The actual cost of performing this operation should not exceed 50 per cent of that sum if done with C. & C. apparatus. Broken crank shafts may also be readily repaired, regard- less of their size or composition or where the break may be located. A shaft 10 inches in diameter can be welded and refinished in one day. The C. & C. Co. will be glad to. recom- mend a reliable repair man to any shipowner or operator who may be in need of quick repairs which will not give future trouble and which can be made at reasonable cost. This system is not limited to marine repair yards or to ship builders, as shipowners are beginning to see the advantage of having an outfit of this kind on all of their more important docks and piers, and some of them are installing moderate sized outfits directly on their vessels in order that repairs can be made while at sea and when in foreign ports. A number of shipowners have installed other types of welding systems on their vessels and other places, but the expense of operation is so much greater than with the electric arc system that the slightly increased cost is more than justified by this item alone. On the other hand, the convenience of opera- tion of the electric system is much greater, as work can be done wher- ever cables may be carried, and it is possible to make welds so much soft- er than gas welds that they are very easily machinable. This is especially important when making repairs on cast iron parts, and the C. & C.. Co. guarantee that they can successfully weld cast iron and have the work so soft that it can be machined as readily as the balance of the casting. Marine Repair Companies Among the marine repair companies using the C. & C. apparatus may be mentioned the Empire Repair & Elec- tric -Welding Co., Brooklyn; Algiers Iron Works, New Orleans; Alex. Mc- Kay, Quebec; Great Lakes Dredging Co., Fort William, Ont.; Siemund- Wenzell Electric Welding Co, New York, and various others. Among the ship builders are Wm. Cramp & Sons, Harlan & Hollingsworth Corporation, Manitowoc Ship Building & Dry Dock Co., and the Staten Island Shipbuild- ing Co. and among the vessel owners are the United States Navy; Jos. M. Clark & Co., Norfolk, Va.; Depart- 163 ment of Marine and Fisheries, Cana- dian government, Sorel, Quebec, etc. A great deal has been published on the subject of electric arc welding which has been very misleading. For instance, the statement is frequently -made that it is: necessary to use spe- cially prepared electrodes for all kinds of work in order to secure the best results, peculiar types of electrode holders in order to do work overhead successfully, and in various other ways the art of using the electric arc for practical welding has been made to appear very mysterious. The claim has also been made that expert op- erators are required in order to do electric welding successfully. The fact of the matter is that with the proper system of welding, and suitable ap--- paratus for working in accordance with that system, the personal element is eliminated to a very large extent, thereby making it possible for any man of average judgment to do elec- tric welding successfully. Owing to the automatic control system of the C. & C. Electric & Mfg. Co., they will guarantee to instruct any man _ of ordinarily good judgment to do elec- tric welding successfully within a few days. Thus they bring to their cus- tomers not alone what is gradually becoming accepted to be the _ best welding system on the market, but also bring a quality of service which cannot be duplicated elsewhere. Ow- ing to their long experience in this field, covering every class of manufac- ture and repair, they are able to as- sist their customers in solving any- problems which may arise. Branch Office 'The: ©. & ..-Co; have: district of- 'fices in all the principal ports on the lakes, as well as on the sea coast, and complete information in regard to the apparatus may be _ obtained from their offices in New York, Bos- ton, Philadelphia, Cleveland, Chicago, Milwaukee, Norfolk, New Orleans and San Francisco. The marine department of the New York Central Lines, through Walter B. Pollock, has given contract to W. & A. Fletcher Co., Hoboken, N. J., for the construction of a double-deck screw ferry boat to be 183 ft. long, 40 ft. beam and 16 ft. deep. The 'bid of the Bath Iron Works, Bath, Me., for installing a steel mast, iron work, hoister, etc., on the light- house tender Mayflower at a cost of $1,369 has been accepted. The May- flower is employed in the second dis- - trict with -headquarters at Boston.