The Public Utilities ClipArt gallery provides 155 illustrations of public water, gas, electrical, and related systems.
Low-head, vertical water wheel generator station.
A low-head, horizontal-turbo-generator-unit installation.
Section C-C. Through generator platform.
Maximum section, Gilboa dam.
Graphic record produced by General Electric Company's Type G demand meter.
A ground wire over a three-phase transmission circuit.
A graphic definition of the term "head".
Boring holes around a bridge.
A horn-gap protector for air conditioner series lightning circuits.
Salt lick hydraulic-fill dam, Pennsylvania.
Illustrating the nomenclature of the essential elements of a hydro-electric development.
Sectional elevation of a typical 110,000 volt hydro-electric generating station.
Impulse wheel and nozzle.
A cross-section of the Edison Electric Company's hydro-electric station at Kern River, California, containing…
Determination of an average load imposed by an industrial plant.
End elevation of the control desk and instrument board.
Instrument post used instead of a panel switchboard.
A General Electric "hour glass" choke coil insulated for 35,000 volts.
Sectional view of Kensico dam.
Sectional elevation of the Keokuk hydro-electric station.
Knopp test set for determining current in direct-current conductors.
Installation of Kuhlo wire in a residence.
Incandescent lamps for exploring.
Fixtures used in a Boston house wiring campaign. (Listed at consumer price). Fixtures sold in finished-building…
Illustrating the principle of the magnetic blow-out lightning protector.
A Pierce line wire, horn-gap protector.
A magnetic locator.
Overall type of masonry dam.
Installation of metal molding to serve brackets.
A method of mounting a box for a bracket fixture.
A multigap protector mounted on a pole for transformer protection.
A multipath protector in a wooden box for outdoor installation.
Assuan on the Nile in Egypt.
Section through a small, low pressure oil engine of the "hot-bulb" or "hot-ball" type.
Remote control oil switch in masonry-cell mounting.
The circulating oil-type transformer.
Supporting outlet box on a furred ceiling.
Gatun dam - Panama canal.
A panel box in a rigid conduit installation.
Examining a partition interior.
Finding the average load from a load graph with a planimeter
An Amsler-type polar planimeter that is being used to measure the area of a load graph.
An illustration showing the distribution losses in a small, alternating current central station.
A printometer-type demand meter arranged in a self-contained case for field tests.
Schematic connection diagram for a grounded-neutral, three-phase electrolytic protector.
Outdoor-type, cupped-disc-gap protectors on a three-phase line.
Illustrating the principle of the reaction wheel. (Shows a cylinder-gate, horizontal-type turbine mounted…
A current-limiting reactor.
Rear elevation of the switchboard with the perspective and front views.
A regulator for small, direct-current generators.
Rigid conduit inserted where the conduit is exposed to moisture.
Manipulation of the special flooring saw. (Finishing the cut).
Sectional elevation showing construction of the Ames-Stumph uniflow engine.
Rock fill and earth dam.
Oil-cooled or self-cooling transformer. (Tubular type)
Method of setting a planimeter so that it reads the mean height of a graph.
A sheet-metal panel box.
Size wire for motor line.