General Information

Serial #

N/A

Part Number

2

Total Parts

2

AKA

N/A

Patents

N/A

General Description

Glass tube with a paper label

Dimensions

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

Length

27.1 cm

Width

N/A

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

1.3 cm

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Power sources

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

John Moncrieff was born in Cherrybank, Perth in 1834. He began working with glass in 1847, when he took a position at Perth Inc Works. He started his own company in 1868, initially naming it the North British Glass and Ink Works, and later renaming it John Moncrieff Ltd. “The superior quality of Moncreiff’s products earned the company an international reputation and its gauge glasses, marketed under the brand names ‘Perth’ and ‘Unific’ were sought world-wide by locomotive companies, steamship companies and the British and foreign Navies.” (ref.2) (From Artifact Worksheet)

Function

To indicate water levels inside of boiler.

Technical

The level of water in a steam boiler must be carefully controlled to ensure the production of quality steam in a safe and efficient manner. This steam is generated by heat from the combustion of fuel in a furnace. As steam is generated, the water in the boiler evaporates and the boiler must receive a supply of water to maintain level, pressure, and efficiency. To monitor this level, a gauge glass on the boiler shell is used as the indicator. The glass itself is designed to withstand heavy pressure and breakage. (From Artifact Worksheet)

Area Notes

Unknown

Details

Markings

On label: "PERTH GAUGE GLASS/ J. MONCRIEFF, MAKER/ MADE IN SCOTLAND"

Missing

Unknown

Finish

Clear, slightly green glass with a brown paper label bearing black markings.

Decoration

N/A