General Information

Serial #

362

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

Metal barometer casing and dial, glass.

Dimensions

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

Length

12.0 cm

Width

11.3 cm

Height

10.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Atmospheric pressure measurement

Sub-Category

N/A

Manufacturer

AKA

Instruments

Country

Canada

State/Province

Ontario

City

Ottawa

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Example of barometer used by Canadian government departments. This one from Energy, Mines, and Resources. This model was originally designed for the Canadian army then adopted for general surveying purposes.

Function

An instrument that measures atmospheric pressure through its effect onan aneroid, or metal chamber partially exhausted of air. This type was used in measuring altitude.

Technical

This aneroid barometer reads to 15 000 feet. The main scale reads from 0 to 1000 feet - each revolution of the main pointer represents a 1000 foot change in elevation. The smaller scale records the number of revolutions made by the main pointer. Each division on the main scale is 1/8 of an inch apart and represents 10 feet. This method of notation is supposed to make the instrument easy to read; because of the simplicity, the instrument does not have a magnifier. This barometer can be taken to a height of 35 000 feet before becoming deranged, which allows the barometer to be taken in an airplane.

Area Notes

Unknown

Details

Markings

Black lettering on dial face reading 'SURVEYING ANEROID/FULL RANGE COMPENSATED/MADE BY/INSTRUMENTS LIMITED/OTTAWA/SERIAL NO. 362', '1 DIV=100 FEET'/markings for 0 to 1000/'T49-64' stamped into carrying case cover.

Missing

Carrying case strap.

Finish

Brown leather with red lining/black casing/metallic grey dial with black indicator needles.

Decoration

N/A