Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

Metal body; synthetic mfr. plate

Dimensions

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

Longueur

22,2 cm

Largeur

19,8 cm

Hauteur

11,1 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Transports maritimes

Catégorie

Communications

Sous-catégorie

S/O

Fabricant

Ou

POCKLINGTON

Pays

Canada

État/province

Ontario

Ville

Toronto

Contexte

Pays

Inconnu

État/province

Inconnu

Période

Inconnu

Canada

Thomas Pocklington Ltd. made and repaired surveying instruments in Toronto between 1925 and 1992. It was one of the few Canadian firms producing precision instruments before WWII. Thomas (b. 1882), the founder, was trained as an instrument maker in the U.K. He moved to Toronto in the early 20th century and worked for Consolidated Optical Co. until he started his own business in 1925. From that time until 1940 the firm occupied a location near what is now the Eaton centre; from 1940 to 1953 the firm occupied 30 Bridgman Ave (presently Tarragon Theatre); from 1953 to 1992 they occupied 208 Weston Rd. The CSTM has the Brightly circular dividing engine (CSTM ARTIFACT # 1992.1776) purchased by the firm in 1940. Thomas was succeeded by his son William, who was succeeded by his two sons John and Ronald. Very little is known about the small precision instrument industry in Toronto in the late 19th and early 20th century. Our growing collection of archival material and artifacts related to Pocklington, one of the leaders in that community, provides a more complete picture of this history. (Taken directly from acquisition proposal)

Fonction

Inconnu

Technique

Instruments like this one document important phases in the history of this firm. This limiting switch represents the firm's involvement in WWII.

Notes sur la région

Inconnu

Détails

Marques

On proper left: "ADMIRALTY PATTERN 3410/ SWITCH LIMITING A/S 4/ 1943/ THOS. POCKLINGTON LTD./ TORONTO". On proper front: "WARNING" followed by instructions for what to do when removing the switch/ A circular disk on the proper front, inset: "POSITION OF DOME" with an arrow. Just outside of disk on proper front: "HOUSED"/ "WORKING"

Manque

Appears complete.

Fini

Dark gray and silver-coloured metal

Décoration

S/O