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Test of Number 12 Boiler and Mechanical Stoker, Bureau of Yards and Docks, Contract 2182, Wind Box Pressure Gauge and Draft Gauge Over Fire

Airplanes - Inspection - Government Inspectore at work. Government inspectors looking over parts and complete assemblies of air and oil pressure gauges and thermometers at the plant of National Guage and Equipment Co., La Crosse, Wisconsin. Rec'd from National Gauge and Equipment

Airplanes - Instruments - Airplane instruments manufactured for the U.S. Government by the Foxboro Co., Inc., Foxboro, Mass. Pressure guage for oil. Rec'd from the Foxboro Co., Inc

Airplanes - Instruments - Testing apparatus for final test of air pressure. Under the bell jar an artificial atmospheric condition corresponding to 25,000 feet is reached, which is checked by the mercurial barometers on the right, on the left can be seen a standard normal barometer checked in the Bureau of Standards, Washington. Made by Aero Instrument Corp., New York City

Balloons - R - Manufacturing balloon and dirigibles for government by Goodrich Rubber Plant Co., Akron, Ohio. Type R Navy kite balloon being tested under air pressure

Airplanes - Ordnance - Sectional diagram of C.C. Gun synchronizing mechanism complete. Dark red illustrates oil under pressure. Shaded red denotes low pressure. Bureau of Aircraft Production, Dayton, Ohio

Balloons - Hangars and Beds - The R-34 ready to start home. The R-34 as she lies at Mineola, piles of hydrogen gas bottles under her, ready to inflate her to the proper pressure again. As soon as minor repairs and "tuning up" are finished, the R-34 will sail for Spain

Airplanes - Manufacturing Plants - Testing aeroplane motor cylinder castings by air pressure. Nordyke & Marmon Co

Balloons - Goodrich Rubber Co. - Manufacturing balloon and dirigibles for government by Goodrich Rubber Co. Plant, Akron, Ohio. Army kite balloon being tested under air pressure

Airplanes - Instruments - Close view of the mechanism of the aero altimeter. It consists of 35 parts. Under the action of atmospheric pressure the chamber A rises and carries up arm B which in turn communicates its movement to segments D by means of levers C, the movement laterally of segment D causes pinion and staff E to turn and carry around the hand which is fastened upon the top of E. Made by Aero Instrument Corp., New York City

Holland Under Pressure

Metal-Repair Class (Pressure Test)

Photograph of the Gage Board for the Dehumidifier, Steam Pressure, and Cooling Water in the Sub-Basement of the National Archives Building

Parachute-borne pressure gauge, Tinian Island, Marianas with "scientific observers" of the 509th group, 1945. Luis Alvarez (standing, right). Copied from Luis Alvarez' personal photos. Morgue 1946-8 (P-13); ZN 3284 [photographer unknown]

37-inch cyclotron, Butch. Two collecting cans for J pressure measurement. Photo taken 5/15/1945. Principal Investigator/Project: Massey. Analog Conversion Project.

Photograph of Cribs Loaded with Posts Coming Out of the Creosote Pressure Oven at the Moss Tie Company Mill at Winona, Missouri

Photograph of Spray Marking a Tree with a Panama Pressure Pump

Photograph of Spray Marking Tree with Panama Pressure Pump

Photograph of Using New Pressure Bubbler at Peterson Bridge Campground

Bill Eason and view of top bubble chamber vacuum tank just before the hydrostatic pressure test. The wires lead to strain gages. The dial indicators measure total deflection. Patent release 9/21/1960. Photograph taken February 1958. Bubble Chamber-460

Photograph of Bean High Pressure 200-Gallon Slip

Designed and built by Mechanical Technician Duane Newhart, this 300-ton hydraulic press can exert up to 4 million pounds of pressure per square inch. Morgue 1961-46 (P-5) [Photographer: Donald Cooksey]

Photograph of Astronaut John H. Glenn, Jr. in His Mark IV Pressure Suit

Photograph of Astronaut M. Scott Carpenter Having His Blood Pressure Checked after His Aurora 7 Flight

A U.S. Army nurse checks a patient's blood pressure

A simulated submarine hull section is secured following the loading of a submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released an act as a surface marker if and when the ship is sunk

A submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O is loaded aboard a simulated submarine hull section during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released and act as a surface marker if and when the ship is sunk

A worker places a chock aboard a simulated submarine hull section prior to the loading of a submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released and act as a surface marker if and when the ship is sunk

A man works to install a submarine emergency communication transmitter (SEC) buoy Mark 9 Mod O outside the pressure hull and inside the other hull of a simulated submarine hull section during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT will be released and act as a surface marker if and when the ship is sunk

A submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O is secured aboard a simulated submarine hull section during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released and act as a surface marker if and when the ship is sunk

A simulated submarine hull section is secured following the loading of a submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released an act as a surface marker if and when the ship is sunk

A submarine emergency communication transmitter (SECT) buoy Mark 9 Mod O is loaded aboard a simulated submarine hull section during testing at the Naval Ordnance Laboratory. When put into fleet use the SECT, which will ride outside the submarine's pressure hull and inside the submarine's outer hull, will be released and act as a surface marker if and when the ship is sunk

Major Hubert K. Flesher, a recently released prisoner of war, has his blood pressure taken upon his arrival at Travis Air Force Base

ROTATING PRESSURE SYSTEM BULKHEAD WITH PRESSURE TUBING

DYNAMIC PRESSURE RAKE - EXPLODED VIEW

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

HARDWARE TO BE USED IN HIGH TEMPERATURE HIGH PRESSURE FACILITY LOCATED IN THE TECHNICAL SERVICES BUILDING TSB - 10X10 FOOT WIND TUNNEL - ENGINE RESEARCH BUILDING ERB

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

HARDWARE TO BE USED IN HIGH TEMPERATURE HIGH PRESSURE FACILITY LOCATED IN THE TECHNICAL SERVICES BUILDING TSB - 10X10 FOOT WIND TUNNEL - ENGINE RESEARCH BUILDING ERB

HIGH PRESSURE HEAT TRANSFER RIG

ROTATING PRESSURE MEASURING SYSTEM

BACK PRESSURE DEVICE IN THE FABRICATION SHOP

HIGH PRESSURE HEAT TRANSFER RIG

HIGH PRESSURE HEAT TRANSFER RIG

HIGH PRESSURE HEAT TRANSFER RIG

DOUBLE BARREL TOTAL TEMPERATURE TOTAL PRESSURE PROBE

SMALL PRESSURE PROBE - NON STEADY FLOW DIRECTION PROBES

HIGH PRESSURE HEAT TRANSFER RIG

DYNAMIC SINUSOIDAL PRESSURE GENERATOR

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

KULITE PRESSURE TRANSDUCERS

LASER WINDOW PRESSURE CELL

POLLUTION RAKE THERMOCOUPLES AND PRESSURE PROBE

SPLIT SPHERE HIGH PRESSURE TEST RIG MOCKUP

POLLUTION RAKE THERMOCOUPLES AND PRESSURE PROBE

SPLIT SPHERE HIGH PRESSURE TEST RIG MOCKUP

PRESSURE AND TEMPERATURE RAKES

SPLIT SPHERE HIGH PRESSURE TEST RIG MOCKUP

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

HIGH PRESSURE HEAT TRANSFER RIG

DYNAMIC SINUSOIDAL PRESSURE GENERATOR

ROTARY PRESSURE MEASURE SYSTEM

HIGH PRESSURE HEAT TRANSFER RIG

DYNAMIC SINUSOIDAL PRESSURE GENERATOR

J-75 TURBINE WHEEL WITH THERMOCOUPLE AND PRESSURE TUBE INSTRUMENTATION

ROTATING PRESSURE MEASURING SYSTEM

SPLIT SPHERE HIGH PRESSURE TEST RIG MOCKUP

PRESSURE AND TEMPERATURE RAKES

LASER WINDOW PRESSURE CELL

ROTATING PRESSURE SYSTEM BULKHEAD WITH PRESSURE TUBES

HIGH PRESSURE HEAT TRANSFER RIG

DYNAMIC SINUSOIDAL PRESSURE GENERATOR

HARDWARE TO BE USED IN HIGH TEMPERATURE HIGH PRESSURE FACILITY LOCATED IN THE TECHNICAL SERVICES BUILDING TSB - 10X10 FOOT WIND TUNNEL - ENGINE RESEARCH BUILDING ERB

POLLUTION RAKE THERMOCOUPLES AND PRESSURE PROBE

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

BACK PRESSURE DEVICE IN THE FABRICATION SHOP

ROTATING PRESSURE MEASURING SYSTEM

ROTARY PRESSURE MEASURE SYSTEM

ARRAY OF LOW COST PRESSURE TRANSDUCERS

MAGNETO HYDRODYNAMICS MHD NEON COIL STACK AND BUILDING OF HIGH PRESSURE COMPRESSOR

HIGH PRESSURE HEAT TRANSFER RIG

HIGH PRESSURE HEAT TRANSFER RIG

ROTATING PRESSURE MEASURING SYSTEM

ROTATING PRESSURE MEASURING SYSTEM

A pilot wears a pressure suit while sitting in the cockpit of a YF-16 aircraft

Captain Frank Smith of the Army Nurse Corps takes a patient's blood pressure at Tripler Army Medical Center

INSTRUMENTATION ON THE HIGH PRESSURE VESSEL

HIGH PRESSURE FACILITY PROMOTION FOR LEWIS NEWS CENTERFOLD

HIGH PRESSURE COMBUSTOR IN THE ENGINE RESEARCH BUILDING ERB BUILD UP AREA

PRESSURE VESSELS - 71 - 81 - 11I

PRESSURE TRANSDUCER SPIN TEST FACILITY

HIGH PRESSURE FACILITY PROMOTION FOR LEWIS NEWS CENTERFOLD

HIGH PRESSURE FACILITY PROMOTION FOR LEWIS NEWS CENTERFOLD

HIGH PRESSURE PANELS

COMBINATION TOTAL PRESSURE - TEMPERATURE - FLOW ANGLE PROBE

INSTRUMENTATION ON THE HIGH PRESSURE VESSEL

HIGH PRESSURE FACILITY PROMOTION FOR LEWIS NEWS CENTERFOLD

F-100 COATED BLADE - PRESSURE AND SUCTION SURFACES

DAMAGED AREA OF COMPOSITE PRESSURE VESSEL

HIGH PRESSURE FACILITY PROMOTION FOR LEWIS NEWS CENTERFOLD