"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

Anemometer

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

Anemometer

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

"The principal part of the aneroid barometer is a cylindrical air-tight box of metal closed by a corrugated top of thin elastic metal. The air is exhausted from the box, which is then sealed. Evidently, the pressure of the air on the outside of the cover will cause the cover to curve inwards, as the space inside of the cover is void of pressure, until the resistance due to the elasticity of the cover, aided by the resistance of a spring beneath it, is equal to the force exerted by the air." — Hallock, 1905

Aneroid Barometer

"The principal part of the aneroid barometer is a cylindrical air-tight box of metal closed by a corrugated…

"The barometer is simply a pressure gauge that registers the pressure of the air. In this case the cup and tube at the bottom are protected by a brass or iron casing. At the top of the tube is a graduated scale. Attached to the casing is an accurate thermometer for determining the temperature of the outside air at the time the barometric observation is taken." — Hallock, 1905

Barometer

"The barometer is simply a pressure gauge that registers the pressure of the air. In this case the cup…

Gage blocks.

Gage Blocks

Gage blocks.

Inspecting work with adjustable limit snap-thread gage.

Adjustable Gage

Inspecting work with adjustable limit snap-thread gage.

Dial cylinder gage.

Cylinder Gage

Dial cylinder gage.

A micrometer depth gage used to measure irregular holes in narrow boring. The gage measures the holes by inserting the rod into the gage while the pointer measures the bore.

Depth Micrometer Gage

A micrometer depth gage used to measure irregular holes in narrow boring. The gage measures the holes…

Vernier height gage.

Height Gage

Vernier height gage.

Inspecting bolt with length gage.

Length Gage

Inspecting bolt with length gage.

Testing shoulder distance with tail gage.

Tail Gage

Testing shoulder distance with tail gage.

Standard wire gage.

Wire Gage

Standard wire gage.

Caliper gages.

Caliper Gages

Caliper gages.

Set of standard thickness or feeler gages.

Feeler Gages

Set of standard thickness or feeler gages.

"A gauge." — Encyclopedia Britannica, 1893

Gauge

"A gauge." — Encyclopedia Britannica, 1893

An illustration of an idiostatic gauge which determines the charge in the condenser.

Idiostatic Gauge

An illustration of an idiostatic gauge which determines the charge in the condenser.

An instrument for measuring or testing.

Instrument Panel Gauge

An instrument for measuring or testing.

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the pressure is a few mmHg. The gas must be well-behaved during its compression (it must not condense, for example). The technique is slow and unsuited to continual monitoring, but is capable of good accuracy.

McLeod Gauge

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the…

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the pressure is a few mmHg. The gas must be well-behaved during its compression (it must not condense, for example). The technique is slow and unsuited to continual monitoring, but is capable of good accuracy.

McLeod Gauge

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the…

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure hose leading to a contents gauge (also called pressure gauge). The port for this hose leaves the first-stage upstream of all pressure-reducing valves. The contents gauge is a pressure gauge measuring the gas pressure in the diving cylinder so the diver knows how much gas remains in the cylinder. It is also known as submersible pressure gauge or SPG.

Pressure Variation Indicator

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure…

A container used to measure a peck.

Peck

A container used to measure a peck.

"An apparatus used to determine pressures beyond those that the McLcod gauge can discern." —The Encyclopedia Britannica 1910

Radiometer

"An apparatus used to determine pressures beyond those that the McLcod gauge can discern." —The…

An instrument or contrivance for measuring the amount of rain which falls on a given surface. They are made of various forms. One simple form consists of a copper funnel five to seven inches in diameter, inserted in the neck of a bottle placed on a stand and protected from the sun's rays, to prevent evaporation.

Rain Gauge

An instrument or contrivance for measuring the amount of rain which falls on a given surface. They are…

"This is an instrument designed to measure the quantity of rain which falls at any given time and place." -Comstock 1850

Rain Gauge

"This is an instrument designed to measure the quantity of rain which falls at any given time and place."…

"a. shank for fixing the implement to a bench; c. punch, hinged to a base b and e; and pressed upward by springs; h. screw-support for the back of the blade; d. gauge which may be adjusted for different-sized teeth. The blade is moved along to bring alternate teeth under the punch, which his struck with a hammer." —Whitney, 1889

Saw Set for a Work Bench

"a. shank for fixing the implement to a bench; c. punch, hinged to a base b and e; and pressed upward…

Testing thickness of flanges with universal dial indicator. The indicator A clamped to rod B is set for measuring the error of work C. With the contact point D touching a standard gauge black or standard piece of work, the needle is set to zero. When the work in moved beneath the gauge, the needle shows the amount of oversize or undersize.

Testing Thickness

Testing thickness of flanges with universal dial indicator. The indicator A clamped to rod B is set…

Gauge for US thread tool.

Thread Tool

Gauge for US thread tool.