General Information

Serial #

N/A

Part Number

1

Total Parts

18

AKA

N/A

Patents

N/A

General Description

.1 NON-FERROUS METAL WITH FERROUS METAL PEN MECHANISM/.2-.3 PAPER/.4-.8,.13-.15 FERROUS METAL,.9-.10 NON-FERROUS METAL,.11-.12 WOOD,.16 GLASS BOTTLE WITH OIL,.17 WOOD,.18 FIBRE CORD/ WOOD CARRYING CASE WITH METAL HARDWARE

Dimensions

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

Length

22.5 cm

Width

20.0 cm

Height

11.0 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

Ashcroft

Country

United States of America

State/Province

Massachusetts

City

Boston

Context

Country

Unknown

State/Province

Unknown

Period

C. 1911

Canada

NOT KNOWN

Function

A TEST INSTRUMENT WHICH PROVIDES AN AUTOGRAPHIC RECORD OF THE PRESSURE-VOLUME MEASUREMENT OF THE STEAM WITHIN THE CYLINDER AS THE ENGINE GOES THROUGH ITS CYCLE OF OPERATIONS (2)

Technical

ONE OF SEVERAL TYPES OF STEAM ENGINE INDICATOR WHICH ARESIMILAR IN PRINCIPLE, INCLUDING THOMPSON, CROSBY, & TABOR INDICATORS. THE TABOR INDICATOR WAS USED EXTENSIVELY IN THE NAVY (1).

Area Notes

Unknown

Details

Markings

.1 INCISED 'The Ashcroft Mfg. Co. Boston. Mass. U.S.A.' WITH PATENT DATE/.2 PRINTED 'THE ASHCROFT MANUFACTURING CO./ Sole Manufacturers of the Tabor Indicator, Nos. 85-87-88 LIBERTY STREET, NEW YORK/ NOS. 111-113-115 No. CANAL STREET, CHICAGO'/.3 PRINTED 'THE WILCOX & WHITE CO.,/ MERIDEN, CONN.'/.4,.5,.6 INCISED '30', '40', '50' RESPECTIVELY/.11-.12 INCISED 'THE ASHCROFTMF'G. CO./ 111 LIBERTY ST. N.Y.' & GRADUATED FOR 0 TO 60 IN TENTHS (EACH GRADUATION IS 1/40 INCH)

Missing

SEVERAL UNIDENTIFIED INTEGRAL PARTS &ACCESSORIES

Finish

.1 PLATED WITH DARK BLUE PEN MECHANISM/.2-.3 WHITE/.4-.10 PLATED, METALLIC, BRASS COLOURED/ CLEAR GLASS WITH ORANGE OIL/.11-.12 LIGHT BROWN VARNISHED WOOD/ CASE STAINED DARK BROWN WITH PLATED HARDWARE

Decoration

N/A