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

TAE MARINE REVIEW FIG. 7.--FITCHBURG LATHES DRIVEN BY TYPE N ALLIS-CHALMERS MOTORS. distributing center of the ship tool shop is placed in a gallery above the main floor where the control apparatus of the various heavy tools is also located. One attendant standing in a position whence he can see the operations going on in any part of the shop works all the machines. This removes all the delicate parts such as controllers and regulators from the machines, where in thts particular shop:they would be especially liabte to injury, to a place of safety. In this shop all circuits are run under the floor and brought to the machines through steel circuits, and there are no exposed wires anywhere in the neigh- borhood of the machines. In the subway the circuits are run upon rubber-covered cables, manufactured by the Standard Underground Cable Co. These are simply nailed to wooden strips, which give sufficient insulation with the low voltage used and the dry atmosphere of the subway. At the center of distribution in the buildings the line is brought up in enameled "electroduct" tubing, and there the main fuses and switches. of the machines are placed. ; To the casual visitor in the Fore River ship yard no one feature is more interesting than the great variety and number of electric traveling cranes used to facilitate the handling of material. The great crane which reaches every portion of the plate yard adjoining the steel tool shop is the largest of its kind in the world. It has 4 span of 175 ft. and travels over 1,000 ft. of track, . Lhe long driving axle is operated by a motor placed in the center of the span and the lift has a capacity of about five tons. For placing equipment in ships already afloat there are six large cantilever cranes and one big folding jib Gantry crane which travels the entire length of the 1,000-ft. fitting-out pier. This structure which is con- spicuous in all views.of the yard has no less than seven Bullock electric motors. There are three hoist motors; one 25-ton, another of 50 tons and one for the 10-ton falls at the end of the boom. The remaining motors are eme- ployed one for crane travel, two for trolley travel and one for hoisting the boom. In the large machine shop there is a about 80-ft. span and 4oo-ft. travel, and in the ship house four having a runway the entire length of the structtire are capable of lifting a 5-ton weight. 100 ft. vertically and depositing it at any point within the four sections. In the forge and the annealing plants cranes handle the im- mense ingots, crank-shafts and gun parts with ease. Every shop has some form of overhead lifting apparatus wherever there is an opportunity to save time and muscu- lar energy. In fact the yard is the best possible field for great crane of 31 the student interested in the evolution of the work- ingman from a mere source of energy to the active intelligence which directs and controls the energy _ developed by machines. It is difficult to find in the entire plant an example of "labor" in the old sense of the word, the mere play of human muscles. BULLOCK VARIABLE SPEED MOTORS, All the large machine tools in which a variation of speed would be desirable are operated by Bul- lock motors on the four wire multiple-voltage sys- tem. In the main machine shop there is one of 30 H. P. mounted upon a 120-in. Niles-Bement-Pond lathe of 108-in. swing; one of 12% H. P. upon a 72- in. lathe of the same make; Four of 18, H. P. operating 60-in. Fitchburg lathes; Two of 24 H. P. driving 48-in. Fitchburg roughing lathes; and four of 8 H. P. operating one 50-in., two 48-in. and one 36-in. lathe all bearing the Fitchburg name-plate. In the same shop: one 50-H. P. motor drives a 120-in. Niles-Bement-Pond boring mill; one of 24 H. P. on a 120-in. boring mill of the same make; one of 15 H. P. on a 72-in. Pond boring mill; one of 2 H. P. on a 60-in. Niles boring mill; one of 9 H. P. driving a 50-in. Niles boring mill; and one of 25 H. P. - operating a 10-ft. boring mill. There are two of 4 H. P. each on radial drills and two of 45 H. P. on crank turning lathes--an interesting machine in which the great cranks used in large ships are braced against distortion by gravity and by cutting tool travels. A 3-H. P. motor drives a machine for cutting buckets for Curtis turbines, a practice which now has been abandoned. There is an 8-H. P. motor for a multiple spindle drill and another of the same capacity for driving an 18-in. Niles slotter. A second Niles slotter, 25-inch, is driven by an 18-horsepower motor and a_ similar motor drives a Niles milling machine. A Newton cold saw is driven by an 8-horsepower motor. This shop contains a multitude of other tools and motors. Those here enumerated comprise only those operated on the Bullock four-wire multiple-voltage system. In the ship tool shop the following machines and motors are operated on the same system, one 24 horsepower driving an angle beveling machine; two of 4 horsepower each on double ended shapers; and one of 114 horsepower to operate a testing machine for bending and breaking strains. A 100- horsepower Morgan train motor drives a set of bending rolls. In the store house there is a 4-horsepower motor for operating a Newton cold saw. In the electric machine shop two motors of 4-horsepower drive a 16-inch lathe and an American turret lathe respectively. There is one of 3 horse- power to drive a 30-inch drill press; one of % horsepower on another drill press, and a second motor of % horsepower for operating a coil winding machine designed on the premises. NEW RAILROAD AND STEAMSHIP LINE. Charter has been granted to the Atlanta, Birmingham & Atlantic Railway Co. for the operation of a steamship line from Brunswick, Ga. to New York. By means of this line Atlanta will have a direct route to New York when the Atlanta, Birmingham & Atlantic is complete. The new venture, the Brunswick Steamship Co. is to construct and operate vessels of all sorts. Following are the offi- cers: President, H. M. Atkinson; vice president, T. S. Arkwright; general manager, C. L. Dimond; secretary and treasurer, 'R. E. Cullanine. Mr. Atkinson states that while a freight line is to be organized first it is the pur- pose of the company to establish a passenger service later. He thinks the steamship line will be in operation in about a year and a half.