The Public Utilities ClipArt gallery provides 154 illustrations of public water, gas, electrical, and related systems.

An air-insulated choke coil for pressures up to 150,000 volts.

Air Insulated

An air-insulated choke coil for pressures up to 150,000 volts.

Horn-gap, choke-coil protector for alternating-current lines.

Alternating Current

Horn-gap, choke-coil protector for alternating-current lines.

An outlet box attached to the ceiling.

An Outlet Box

An outlet box attached to the ceiling.

A 90 degree angle connector.

Angle Connectors

A 90 degree angle connector.

"Aqueduct of Segovia, Spain. A conduit or channel for conducting water from one place to another."-Whitney, 1902

Aqueduct

"Aqueduct of Segovia, Spain. A conduit or channel for conducting water from one place to another."-Whitney,…

"Roman aqueduct near Nimes, in France."—Colby, 1899

Aqueduct

"Roman aqueduct near Nimes, in France."—Colby, 1899

"A conduit for conveying water more particularly applied to structures for conveying water from distant sources for the supply of large cities." — Williams, 1889

Aqueduct

"A conduit for conveying water more particularly applied to structures for conveying water from distant…

A Claudian aqueduct, a building constructed in honor of Claudius I, a Roman emperor.

Aqueduct

A Claudian aqueduct, a building constructed in honor of Claudius I, a Roman emperor.

"Part of a Roman Aqueduct. Aqueducts form one of the most characteristic features of Roman architecture. Although these simple successions of gigantic arches, which stretch for miles, have no pretensions to artistic beauty, yet their wonderful size and extent bear witness to the vast conceptions of Roman genius."

Roman Aqueduct

"Part of a Roman Aqueduct. Aqueducts form one of the most characteristic features of Roman architecture.…

"The ruined aqueducts in the Campagna." — Young, 1901

Ruined aqueducts

"The ruined aqueducts in the Campagna." — Young, 1901

Showing the general arrangement of the proposed outdoor hydro-electric station.

Arrangement of Station

Showing the general arrangement of the proposed outdoor hydro-electric station.

A Multigap alternating-current arrester with series resistance arranged for pole mounting.

Arrester

A Multigap alternating-current arrester with series resistance arranged for pole mounting.

A cross section of a General Electric company 115,000 - 135,000 volt electrolytic arrester tank.

Arrester Tank

A cross section of a General Electric company 115,000 - 135,000 volt electrolytic arrester tank.

An illustration of a full page border with birds on power lines.

Full Page Border with Birds on Power Lines

An illustration of a full page border with birds on power lines.

Boiler house and generating station of the Remington Arms and Ammunition Company in Bridgeport, Connecticut.

Boiler House

Boiler house and generating station of the Remington Arms and Ammunition Company in Bridgeport, Connecticut.

Bracket box.

Box

Bracket box.

An assembled bracket box and fixture stud.

Bracket Box

An assembled bracket box and fixture stud.

A building wired for double-pole switches.

Building

A building wired for double-pole switches.

A Burke suspension lightning protector for pressures of up to 6600 volts.

Burke Protector

A Burke suspension lightning protector for pressures of up to 6600 volts.

An example of cross water channel, set off-center.

Channel

An example of cross water channel, set off-center.

A 100-amp choke coil designed for pressures of up to 6600 volts.

Choke Coil

A 100-amp choke coil designed for pressures of up to 6600 volts.

The diagram of "circuit-breaker type" lightning protector.

Circuit-breaker Type

The diagram of "circuit-breaker type" lightning protector.

An umbrella being used for catching dirt at a ceiling outlet.

Cleaning Ceiling Outlets

An umbrella being used for catching dirt at a ceiling outlet.

A Westinghouse "pancake type" choke coil for pressures from 2200 to 25000 volts.

Coil

A Westinghouse "pancake type" choke coil for pressures from 2200 to 25000 volts.

Arrangement of two-phase conductors on cross arms.

Conductors

Arrangement of two-phase conductors on cross arms.

Installation of a concealed conduit where the conduit run is available.

Conduit

Installation of a concealed conduit where the conduit run is available.

Conduit lines installed in an elevator shaft in a finished building.

Conduit Lines

Conduit lines installed in an elevator shaft in a finished building.

Vertical conduit run to serve different floors or different apartments.

Conduit Run

Vertical conduit run to serve different floors or different apartments.

Rigid conduit switchbox in position.

Conduit Switchbox

Rigid conduit switchbox in position.

Conduit runs supported on the outside of a building.

Conduits

Conduit runs supported on the outside of a building.

Methods of connecting an alternate-current demand meter for 440 and 660-volt loads. For 110 and 220-volt loads (and direct-current loads), the transformer is omitted.

Connecting Demand Meter

Methods of connecting an alternate-current demand meter for 440 and 660-volt loads. For 110 and 220-volt…

A flexible connector connected to a rigid connector.

Connectors

A flexible connector connected to a rigid connector.

Construction around windows.

Construction

Construction around windows.

A plan of the desk's face and front elevation of the control desk instrument board.

Contol Desk

A plan of the desk's face and front elevation of the control desk instrument board.

Westinghouse control pedestal used in combination with an instrument post.

Control Pedestal

Westinghouse control pedestal used in combination with an instrument post.

Sectional elevation showing a typical arrangement of a synchronous converter sub-station for electric railway service.

Converter

Sectional elevation showing a typical arrangement of a synchronous converter sub-station for electric…

An example of cross water channel asymmetrically aligned.

Cross Water Channel

An example of cross water channel asymmetrically aligned.

Cross-section of New Croton dam.

Cross-section of Dam

Cross-section of New Croton dam.

A cupped-disc-gap protector.

Cupped-disc-gap Protector

A cupped-disc-gap protector.

The Wright demand meter.

Demand Meter

The Wright demand meter.

A dirt catching device assembled and cross-sectioned.

Device

A dirt catching device assembled and cross-sectioned.

Front view of the five-panel direct-current switchboard.

Direct Current Switchboard

Front view of the five-panel direct-current switchboard.

Ratchet drills.

Drill

Ratchet drills.

A combination pumping and electric-light plant driven by a gravity waterwheel.

Electric Plant

A combination pumping and electric-light plant driven by a gravity waterwheel.

The cover of the National Light Association booklet.

Electric Sign

The cover of the National Light Association booklet.

Sectional elevation of a General Electric Company electrolytic protector.

Electrolytic Protector

Sectional elevation of a General Electric Company electrolytic protector.

Westinghouse equalizer pedestal with a switch for compound-wound direct-current generator.

Equalizer

Westinghouse equalizer pedestal with a switch for compound-wound direct-current generator.

Sectional elevation of the turbine building of the Essex Station.

Essex Station

Sectional elevation of the turbine building of the Essex Station.

An exposed conduit installation.

Exposed Conduit

An exposed conduit installation.

Exterior view of building that was wired.

Exterior

Exterior view of building that was wired.

Fasteners for Kuhlo wire.

Fasteners

Fasteners for Kuhlo wire.

Supporting fixture from an attic.

Fixture

Supporting fixture from an attic.

A flexible conduit connected to a flexible conduit.

Flexible Connector

A flexible conduit connected to a flexible conduit.

Manipulation of the special flooring saw.  (Starting the cut).

Flooring Saw

Manipulation of the special flooring saw. (Starting the cut).

A public fountain to provide a jet of drinking water

Drinking Fountain

A public fountain to provide a jet of drinking water

Typical framing of a wooden building.

Framing

Typical framing of a wooden building.

A cupped-disc-gap protector.

Gap Protector

A cupped-disc-gap protector.

A Garton-Daniels lightning protector.

Garton-Daniels

A Garton-Daniels lightning protector.

Loss in a suction gas-producer plant.

Gas-producer Plant

Loss in a suction gas-producer plant.

A direct-connected generating unit. A high-speed piston-valve engine driving a small alternator.

Generating Unit

A direct-connected generating unit. A high-speed piston-valve engine driving a small alternator.