"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,…

a conductor, as a copper wire, wound up in a spiral or other form.

Spiral Conducting Coil

a conductor, as a copper wire, wound up in a spiral or other form.

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

Conduit

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

Second story floor boards removed and a conduit placed in the joist slot.

Conduit in Place

Second story floor boards removed and a conduit placed in the joist slot.

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.

An exposed conduit installation.

Exposed Conduit

An exposed conduit installation.

A flexible conduit connected to a flexible conduit.

Flexible Connector

A flexible conduit connected to a flexible conduit.

A panel box in a rigid conduit installation.

Panel Box

A panel box in a rigid conduit installation.

Rigid conduit inserted where the conduit is exposed to moisture.

Rigid Conduit

Rigid conduit inserted where the conduit is exposed to moisture.

A method of slotting joist for the reception of a conduit.

Slotting Joist

A method of slotting joist for the reception of a conduit.

A piece of laboratory equipment. It is a laboratory tube used much in the same way as a boiling tube except not being as large and thick-walled.

Ignition Tube

A piece of laboratory equipment. It is a laboratory tube used much in the same way as a boiling tube…