Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

synthetic shell/ brass/ copper/ porcelain/ rubber/ fabric wire covering

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

4,5 cm

Largeur

5,9 cm

Hauteur

11,9 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Énergie-électrique

Catégorie

Site d'utilisateur

Sous-catégorie

S/O

Fabricant

Ou

Inconnu

Pays

Inconnu

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Amérique du Nord

État/province

Inconnu

Période

first quarter of 20th century

Canada

An example of an American made socket of a type used in Canada. Part of a large & varied collection of over 7500 electrical items acquired & documented by Ontario Hydro in the 1960s. The collection was thought to be the largest & most comprehensive of its kind in Canada & was donated to the National Museum of Science & Technology in 1992.

Fonction

An electrical wiring device used to support & connect to electricity a lamp or other electrical device.

Technique

An example of a weatherproof socket dating from before 1925; after that date weatherproof sockets were required to have different coloured wires./ A simple arrangement which did not require the service of a mechanic to change a lamp was a necessity for commercial production of lamp sockets. In 1880 Edison introduced the screw cap which still bears his name (Ref. 3). Edison had the idea for a light socket while screwing the cap on a kerosene can. It has the advantage of firmly seating the bulb without having to snap, pull or otherwise jar the lamp and its delicate filament. There were rival lamps before 1900, each with its own base, but Edison's base had 70% of the market in the early 1900s (Ref. 5). Weatherproof sockets were often made of hard rubber or bakelite. Such sockets were used in damp or wet places or over an inflammable area. They were hung by separate stranded, rubber-covered wires of no smaller than 14 gauge.

Notes sur la région

Inconnu

Détails

Marques

none

Manque

appears complete

Fini

black shell/ gold coloured metal/ white porcelain/ black wire covering

Décoration

S/O