General Information

Serial #

SDB 33891R

Part Number

1

Total Parts

14

AKA

N/A

Patents

N/A

General Description

.1 NON-FERROUS METAL; SYNTHETIC PARTS; FIBRE CORD/.2-.7 METAL/.8 WOOD HANDLE; METAL BLADE/.9 PLASTIC/.10 CARDBPOARD/.11 PAPER/.12 WOOD/.13 WOOD WITH METAL HARDWARE, LEATHER HANDLE

Dimensions

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

Length

33.5 cm

Width

26.5 cm

Height

14.3 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

Unknown

State/Province

Unknown

Period

Unknown

Canada

FROM ESTATE OF MR. E. EDWARD JONES, F.I. MECH. E.C. ENG., P. ENG. (1908-1994), BRITISH BORN & EDUCATED ENGINEER. AFTER COMING TO CANADA IN 1950'S, HE WAS INVOLVED IN DEVELOPMENT OF ORENDA IROQUOIS GAS TURBINE, & LATER INENGINEERING EDUCATION & DEVELOPMENT & MARKETING OF ENGINEERING EDUCATIONAL TOOLS.

Function

TEST INSTRUMENT WHICH PROVIDES AUTOGRAPHIC RECORD OF PRESSURE VOLUME MEASUREMENT OF STEAM WITHIN CYLINDER OF STEAM ENGINE AS ENGINE GOES THROUGH ITS CYCLE OF OPERATIONS.

Technical

ONE OF SEVERAL TYPES OF STEAM ENGINE INDICATOR WHICH ARE SIMILAR IN PRINCIPLE, INCLUDING THOMPSON, TABOR, & CROSBY INDICATORS.

Area Notes

Unknown

Details

Markings

.1 INCISED LETTERING READING "DOBBIE MCINNES" & "SDB 33891R"/.8 INCISED "ATKIN & SON/.10 BLACK LETTERING READS IN PART "DOBBIE McINNES LTD., Broomlow Road, GLASGOW. S.W.1/ Makers of Engineering, Industrial, Scientific & Navigational Instruments"/.13 PLATE ON CASE TOP READS "DOBBIE/ McINNES/ LIMITED"

Missing

SPRINGS & OTHER PARTS MISSING FROM COMPARTMENTS IN CASE.

Finish

.1 PLATED METAL; BLACK SYNTHETIC/.2-.3 BRASS & METALLIC COLOURED/.4 PAINTED GLOSSY BLACK/.5-.7 METALLIC/.8 COATED WOOD HANDLE; METALLIC BLADE/.9 COLOURLESS & TRANSPARENT/.10-.1 WHITE/.12 UNFINISHED/.13 COATED MEDIUM BROWB STAINED WOOD; BROWN STRAP; PLATED HARDWARE

Decoration

N/A