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July, 1918 SECOND 5 OPERATIO TION a4e) THIRD OPERATION DIAGRAM OF BENDING OPERATIONS PRESS EQUIPPED FoR FLANGING ENO aon (SHOWING OPERATIONS) SHOWING UNLATCHING IC THE MARINE REVIEW 319 +—— CLEAR OREN /6-0" oe he : THEN fot SIAR PEN YoU PER PRESS ARRANGED FoR ONE END TO OPEN FoR BENDING OR ROLLING COMPLETE CYLINDERS AND BOILERS ee ee CLEAR OPENING 3/-0" oe rrr rey eet Ty) A eee ae baad FACES lk b TT : i= ACCUMULA l SECTIONAL ELEVATION : Hittite th SIDE ELEVATION OF HYDRAULIC BENDING PRESS TA mn HYDRAULIC PLATE BENDING, WARPING AND FLANGING PRESS structed partly in structural shops and partly in medium-sized machine shops and is designed to be built quickly. The device, is essentially an extended bulldozer. As shown in the illustration, it consists of two heavy girders, one above the other, securely tied at the ends. On the lower surface of the upper girder is mounted a continuous set of convex dies 24 inches wide, the full length of the machine, which has a clear opening of 31 feet. On top of the lower girder is a series of 10 hydraulic rams or pistons, carrying on their tops a series of concave dies 24 inches wide. These dies have any desired curva- ture and can be changed at will. The plate may be formed cold to a cylinder with a radius of 36 inches or more, with the axis parallel to the long dimen- sion of the press. In operation the long edge of the plate is inserted and the plungers set in motion, giving the plate its cylin- drical form for about 24 inches of its width. The plate then is moved 24 inches further and a second portion is formed. A series of these operations gives as much curvature as desired. The length of time required in this machine is said to be the same as in the ordinary bending roll. The plate can be curved to within 1 or 2 inches of the edge. In ships of the Isherwood design, especially, gusset plates or knee braces are used where deck beams connect with the uprights of transverse girders. This requires that plates be bent at righi angles to form a flange 5 to 6 inches high as a stiffener. This flanging proc- ess is accomplished by the use of V- shaped blocks and dies. The machine also may be used for TRUCK FOR HANDLING MATERIALS DIRECT TO MACHINES off-setting or crimping angles which go around hatchways and for bending other bars or shapes. High Level Truck A truck developed and built by the Orenstein-Arthur Koppel Co., Koppel, Pa., is shown in the accompanying illus- tration. The truck is designed to elimi- nate the time lost by a machine tool operator in stooping or bending when transferring material from a truck to the machine, or from the tool to the truck. It is so constructed that the whole load is balanced on the center axle. This is provided with large di- ameter, wide tire, roller bearing wheels. Although of heavy design, the rated capacity being two-thirds of a ton, the truck can be easily moved fully loaded. Marine Equipment A well illustrated catalog is being distributed by George H. Thacher & -Co., Albany, N. Y., describing and illus- trating anchors and marine equipment manufactured by the company. Illus- trations of 14 anchors are given. A stockless anchor, with a long shank is described which is made in 17 different sizes, ranging from one of 8 pounds to one of 500 pounds. A _ light suction anchor, which weighs from 15 pounds to 500 pounds, and a heavy suction anchor, which weighs from 750 to 10,000 pounds are fully described. These forms of anchors are of the standard inverted mushroom type. Other marine equipment illustrated in the catalog’ in- cludes kedge anchors, grapnels, ship cleats, chocks, mooring posts, dock bitts, towing bitts, mooring rings, deck scut- tles, hawse pipes and reels, capstans and propellers.