Manufacturers of Ordnance Material for

U. S. Navy U. S. Army

and for the Governments of

Great Britain

France Russia Italy

Greece Chile Argentina Guatemala

Cuba Spain Etc. Etc.

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ELECTRIC BOAT

COMPANY

11 Pine Street, New York City

BUILDERS OF THE

Holland Submarine Boats

MCDANIEL IMPROVED STEAM TRAP Ease of Repair and Minimum of Wear Are Its Strong Characteristics All working parts are here

Watson & McDaniel Company

MANUFACTURERS OF

STEAM SPECIALTIES

KEEP YOUR BOOKS BALANCED
There is but one SURE way-This is by using the

Underwood Bookkeeping Machine

The Great Mechanical Custodian of Your Business "The Machine you will eventually buy"

UNDERWOOD TYPEWRITER COMPANY, INC. 1413 NEW YORK AVE., N. W., WASHINGTON, D. C.

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Chelsea" SHIP'S BELL (Striking) and Clocks

MARINE (Non-Striking)

Every vessel and air craft should be equipped with these fine clocks.
Last a life time. Keep good time. Best in the World for Such Use
Also for Yachts, and in Attractive Wood or Metal Cases, for Clubs,
Residences, Offices, etc., and General Presentation Purposes
Also Auto Clocks-Best in the World

Chelsea Clock Co.

10 State St., Boston, Mass., U.S.A.

Makers Exclusively of High Grade Clocks

Ford Instrument Company, Inc.

(Ford Marine Appliance Corporation)

ENGINEERS AND MANUFACTURERS

80 Lafayette Street, New York

Scientific Instruments

Automatic Machines

Variable Speed Drive

Naval Fire Control Apparatus

METALLIC PACKINGS

FOR MAIN ENGINE PISTON RODS
VALVE STEMS AND AUXILIARIES

The United States Metallic Packing Co.
Philadelphia

Pipe-Threading and Cutting Machines

OLT

"The Proven Best

By Government Test!"

REVOLVERS: All desirable calibers, weights and sizes. The choice of Military Organizations, Police Departments and Expert Shooters the world over.

AUTOMATIC PISTOLS: Adopted by U. S. Government because of their "marked superiority." Vest pocket to Army .45 sizes. AUTOMATIC MACHINE GUN: (Improved Model 1914.) Adapted for rifle ammunition of various calibers for Army and Navy use. Heated barrel replaced with cool one in less than a minute. Fitted with a variety of mounts.

Catalogs and Special Booklets sent on request.

COLT'S PATENT FIRE ARMS MFG. CO.

HARTFORD, CONN., U. S. A.

TRADE

MAR K

Reg. U. S. Pat. Off.

These instruments measure the weight and contents of bunker fuel oil and cargo tanks on U. S. S. "New York," "Mississippi," "Idaho," "Maumee," "Kanawha," Submarine L-10, etc.

PNEUMERCATOR COMPANY, Inc.

1326 PARK ROW BUILDING, No. 15 PARK ROW, NEW YORK, N. Y

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Kinney Steam Jacketed Fuel Oil Cargo Pump Capacities ranging from 25-4000 gallons

The above cut shows the Kinney steam jacketed pump designed for handling 3,000 gallons of heavy Mexican crude oil per minute. It is driven by a 225 HP, General Electric, Type L turbine with a Fast Turbo Speed Reducer, having a speed reduction of 2400 to 200, and connected to the pump by a flexible coupling. The unit is also controlled by a pressure pump governor set at a predetermined point and operated at the discharge side of the pump.

The pump is also equipped with lantern glands to allow the free circulation of oil through the bearings and back to the suction side of the pump which eliminates all the packing trouble experienced in handling all grades of crude oil.

Two of these units have been furnished for the U. S. S. Tank Steamer " Brazos" built at the Boston Navy Yard and four for Tank Steamers No. 17 and 18 for the same yard.

Kinney Manufacturing Co.

Boston, Massachusetts

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