Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

wood instrument base & user made support, parts/ glass dome/ metal mechanism & parts/ synthetic parts/ paper? scale

Dimensions

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

Longueur

36,5 cm

Largeur

25,5 cm

Hauteur

15,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Physique

Catégorie

Équipement de démonstration et d'enseignement

Sous-catégorie

S/O

Fabricant

Ou

CENCO

Pays

United States of America

État/province

Illinois

Ville

Chicago

Contexte

Pays

Canada

État/province

Ontario

Période

early 20th century

Canada

This piece of equipment was used at the Chatham Collegiate Institute in Chatham, Ontario, a secondary school which was founded in 1885 and closed in 2003. In 1851 the first school was established in the village of Chatham and by the late 1870's it was called Chatham High School. In 1885 the school attained the status of a collegiate institute, enabling it to obtain larger provincial grants and by 1887 a new school building had been constructed and the CCI was considered to be one of the most outstanding secondary schools in Ontario (it was destroyed by fire in 1946). In 1940 a new building was completed & again was considered to be one of the most modern educational facilities in the province. The school was closed in 2003.

Fonction

An instrument used to measure electrical current and voltage, in this case to demonstrate principles of electricity in a school.

Technique

A volt-ammeter with a glass dome & a mahogany base used for demonstration purposes. This example is mounted on a user made support so that it can be placed in a vertical position (probably to facilitate classroom or lab demonstrations). It appears in Cenco's 1923 & 1936 catalogues (Refs. 2 & 3).

Notes sur la région

Inconnu

Détails

Marques

Plate on base reads"CENTRAL SCIENTIFIC CO./ LABORATORY SUPPLIES/ APPARATUS CHEMICALS/ CENCO [logo]/ CHICAGO U.S.A."/ black lettering on scale reads "D.C. VOLT-AMMETER"

Manque

appears complete

Fini

brown stained & coated volt-ammeter base/ unfinished wood support/ black painted, plated & metallic metal parts/ colourless transparent glass/ white? scale

Décoration

S/O