General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

wood/ copper/ rubber/ metal parts

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

6.6 cm

Width

6.5 cm

Height

3.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

User site

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Unknown

Period

late 19th century

Canada

An example of a ceiling rosette of a type used in Canada. Part of a large and varied collection of over 7500 electrical items acquired and documented by Ontario Hydro in the1960s. The collection was thought to be the largest and most comprehensive of its kind in Canada and was donated to the National Museum of Science and Technology in 1992.

Function

An electrical wiring device used to provide a means of connecting electrical wires coming from the wiring system of a building into a single wire or cable wire; cleat rosettes were used specifically to support and conceal exposed wiring in indoor work.

Technical

An example of a wood ceiling rosette of the late 19th century. During the late 1880s, the wood cleat was replaced by the porcelain cleat and the solid porcelain insulator gradually gave way to the two-piece clamping style (like this one). In June 1913, Ontario Hydro wiring rules prohibited the use of wood moulding to cover conductors and limited the use of metal moulding to circuits of less than 1320 watts (Refs. 2-4).

Area Notes

Unknown

Details

Markings

none

Missing

appears complete

Finish

wood stained? light brown and coated

Decoration

N/A