General Information

Serial #

N/A

Part Number

14

Total Parts

14

AKA

N/A

Patents

N/A

General Description

WOODEN CASE FITTED WITH BRASS HARDWARE

Dimensions

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

Length

26.5 cm

Width

20.0 cm

Height

18.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Power sources

Sub-Category

N/A

Manufacturer

AKA

Dobbie

Country

Scotland

State/Province

Unknown

City

Glasgow

Context

Country

North America

State/Province

Unknown

Period

THIS TYPE OF INDICATOR PROBABLY USED IN LATE 1800S- FIRST QUARTER OF 20TH C., AND POSSIBLY LATER.

Canada

Unknown

Function

TO TEST THE EFFICIENCY OF VALVES, AND TO DETERMINE HORSE POWER DEVELOPED DURING OPERATION.

Technical

EXAMPLE OF HIGH SPEED INTERNAL COMBUSTION ENGINE INDICATOR, WHICH IS USED AS A RECORDING PRESSURE GAUGE.

Area Notes

Unknown

Details

Markings

Decal on case top is badly damaged; reads in part " DOBBIE-McINNES/ ENGINEERING & [illegible]/ INSTRUMENT [illegible]" and " LONDON, LIVERPOOL/ AND SOUTH SHIELDS "./ Decorative metal lockplate reads " DOBBIE/ McINNES/ REG'D/ DOBBIE McINNES/ LTD./ GLASGOW ". / Label applied to inside of case lid reads " The/ "DOBBIE-McINNES"/ ENGINE INDICATOR./ HALF SIZE/ EXTERNAL PRESSURE SPRING/ INSTRUMENT/ for speeds to 1500 revs. per min., suitable for/ HIGH SPEED INTERNAL/ COMBUSTION ENGINES./ PRESSURE SPRINGS/ This Indicator is intended for diagrams/ about one inch high and a 1/100 to the inch/ Spring therefore is suitable for pressures/ up to 100 lb.; a 1/250 for pressures up to 250 lb., etc./ SOLE MAKERS/ DOBBIE MCINNES LIMITED,/ Indicator Makers to the British Admiralty,/ 57 BOTHWELL STREET, GLASGOW,/ and at So. SHIELDS AND LONDON. "/ Label applied to inside of inner compartment in case lid has been reproduced- see hard copy in supp. info. and digital image on database.

Missing

N/A

Finish

DARK STAINED FINISH ON CASE.

Decoration

N/A