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

be avoided. Pertinent Suggestions and Personal Gossip IA --.CeKKCR eee ine IPE tools are described in a P booklet issued by the Green- field Tap & Die Corp., Green- field, Mass. The booklet contains 72 pages and is well illustrated. Aside from describing the company's line of pipe tools the booklet contains a short historical sketch of the com- pany and many tables of useful infor- mation among which are the follow- ing: Standard dimensions of wrought iron gas and water pipe; standard di- mensions of extra strong pipe; stand- ard dimensions of double extra strong - pipe; drillsizes for pipe taps; dimensions of Briggs standard taper pipe thread; dimensions of British standard Whit- worth pipe thread; wire gage stand- ards; copper wire table; United States standard gage for uncoated iron sheets and plates; weights of sheet copper; conduit sizes to be used with different sizes of wires and cables; decimal equivalents of fractional parts of 1 inch; squares, cubes, square and cube roots of numbers from 1 to 100; reciprocals of numbers from 1 to 200 and circumferences and areas of circles from 1/16-inch to 100 inches. Steel for Ships The Carnegie Steel Co., Pittsburgh, has issued a 16-page booklet on struc- tural steel for ships. Stress is laid on the fact that shipbuilding practice should conform to uses established as standard in the fabrication of shapes and plates for bridges, buildings and cars and that useless and minute variations should The booklet gives tables on channels and angles, weights of flat rolled steel, permissible variations of plates ordered to weight, and an outline of the standard practice in manufactur- ing structural steel for ships as recom- mended by American steelmakers and adopted by the Emergency Fleet cor- ae Horay or _ Feed Water Heaters ee neat bulletin describing and il- ; anes feed water heaters, steam engines, and other products is being | distributed by: the Griscom-Russell New York. The feed water are furnished ertical or horizontal, in two exhaust and with s brass tubes, in all sizes,: expanded at each end into steel tube plates, one of which is fixed and the other of the floating type, allow for expansion. The shell is of close-grained cast iron. The water passes through the tubes and the steam through the shell. The steam engines built by the Griscom-Russell Co. are single and 4-valve, made in simple and com- pound styles, and are adapted to all classes of power generating service. Marine Boilers "Just About Marine Boilers" is the title of an attractive 15-page booklet recently issued by the Badenhausen Co., Philadelphia. The boiler de- scribed is built on a continuous cir- culation system which is designed to give better steaming ability. The subject of water circulation in boilers is interestingly explained in the book- let with the aid of illustrations. The booklet is well written and will in- terest marine engineers and others in- terested in marine boilers. New Method of Painting "Aeron System" is the title of an at- tractive 40-page catalog recently issued 'by The De Vilbiss Mfg. Co., Toledo, OQ. The system is used for painting all for has kinds of surfaces by which purpose _ the spraying company developed many novel devices. It is claimed that the company's system does away with the slow, handbrushing method of painting and that a better quality of finish is produced. It is also pointed out that an intricately carved piece of work can be painted in ap- proximately the same time required to finish a flat panel. The catalog is well illustrated and complete descriptions of each article are included. Low Visibility Paint The Joseph Dixon Crucible Co., Jer- sey City, N. J., has recently placed a low visibility paint on the market which is said to render the hulls of vessels practically invisible at a distance. It is reported that at the naval battle off the coast of Jutland, many German war ships succeeded in getting safely away from the combined British fleet, owing to the fact that their hulls and upper works were painted a dirty gray. Thus, it is seen, that low visibility paint plays 222 an important part in modern It is claimed that the Dixon | product resists dampness, brine at; etc., and that it is successfully use smoke stacks, boiler fronts, hatch ers and coamings, winches and fo ous other Bupeg Ses aboard ship. Forging Presses" The United Engineering & Fo Co., Pittsburgh, has issued a 48 booklet describing a line of high-spee steam-hydraulic forging presses. presses are built in a range of siz from 150 to 12,000 tons capacity for all kinds of pressing, forging and sh ing. The booklet is well illustr ed and descriptions of each type of press are included. Some interesting illus- trations of actual forgings are also presented. They are fully dimensioned and the forging time for each piece is given. Tables giving the standard pounds per square inch are also in- cluded. Valve Specialties Stop. check valves and pump reg lating valves for marine use are de- scribed in an attractive booklet recently issued by the Thomas P. Ford Co. New York. The booklet gives comple descriptions of the company's products many of which are illustrated in se tional drawings. The Ford company began making valves in 1892. Among the products described is an automatic return check and stop valve for use between boiler and header; a_screw- down stop and check valve for bilge drainage system; a stop check valve for use in boiler feed lines; and a pump regulating valve for steam pumps on iE shipboard supplying hydraulic pressure from 10 pounds up to 300 pounds. Issues House Organ The Dry Dock Dial is the. title of an attractive house paper issued by 'the Morse Dry Dock & Repair Co., interest of the firm. The Dial is pu lished monthly. Bert Edward Ba is the editor.