General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

RUBBER DRAW TIP, THERMOMETER HOUSING & BULB; GLASS TUBES; SPECIFIC GRAVITY SCALES PRINTED ON PAPER; THERMOMETER SCALE PRINTED ON SYNTHETIC. SMALL AMOUNT OF MERCURY CONTAINED IN THERMOMETER. CW PAPER BOX & PACKING.

Dimensions

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

Length

31.2 cm

Width

5.6 cm

Height

6.6 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Motorized Ground Transportation

Category

Servicing

Sub-Category

N/A

Manufacturer

AKA

EDELMANN

Country

United States of America

State/Province

Illinois

City

Chicago

Context

Country

Canada

State/Province

Ontario

Period

THIS TYPE OF BATTERY TESTER PROBABLY USED C. 1930S+.

Canada

Unknown

Function

TO MEASURE THE SPECIFIC GRAVITY OF A LIQUID, IN THIS CASE OF BATTERY ACID.

Technical

EXAMPLE OF BATTERY TESTER USED TO DETERMINE EFFICIENCY OF LIQUID CELL BATTERIES BY MEASURING THE SPECIFIC GRAVITY OF THE BATTERY ACID. READINGS OF " GOOD", " FAIR " OR " RECHARGE " COULD BE OBTAINED USING THIS SIMPLE HYDROMETER. IF THE BATTERY ACID TEMP. WAS 80 DEGREES F., THE READING COULD BE TAKEN DIRECTLY; A CORRECTION TABLE WAS PROVIDED FOR READINGS TAKEN AT + OR - 80 DEGREES F.

Area Notes

Unknown

Details

Markings

" E. EDELMANN & CO. " & " CHICAGO U.S.A. " appears in raised print on rubber draw tip. " PAT. JULY 26, 27 AND/ SEPT. 6, 1927/ NO. 1637219/ NO. 734011 " appears in raised print on bulb end. " FLOAT No. 1040/ Made by/ E. EDELMANN & CO./ in Chicago, U.S.A. " printed on paper scale. Scale divided from 1100 to 1320 in increments of 5, and labelled at intervals of 25: 1100 to 1225 printed on red background, and marked " RECHARGE; 1225 to 1265 printed on white background, and marked " FAIR "; 1265 TO 1320 printed on green background, and marked " GOOD ". Scale printed on synthetic card mounted behind thermometer tube graduated 10 to 0 to 160 degrees on left, 40 to 0 to 32 degrees on right. Left scale divided and labelled in increments of 10; " SER 837 " printed in lower right corner. Right scale divided and labelled in increments of 4, from 36 to 32: lower half labelled " 39 " & " SUBTRACT FROM FLOAT RDG "; upper half labelled " ADD TO FLOAT READING "./ PT Box : "Precisioned/ by Edelmann" appears on all 4 sides of box./ "EDELMANN #40-B THERMO "BREAK-NOT" / battery tester/ E. EDELMANN & CO. CHICAGO, U.S.A." printed on box top./ Illustration of hydrometer & text "E. EDELMANN & CO. CHICAGO, U.S.A." printed on two sides of box./ Label applied to box side reads: "5G/10618/ HYDROMETER/ PT#. 40-B/ MFR. EDELMANN/ CD#. REQ.AMC B30/ QTY. 1 METH. 111/ OCT. 62/ 14209D/1/62"./ Instructions for assembling & using hydrometer printed on back panel of box- please see photocopy of text, also in supp. info./ "battery/ tester/ 40-B/ E. EDELMANN CHICAGO, U.S.A." printed on both end panels of box.

Missing

NONE. From CA of 12/07/2001 by David Daley: No - Complete

Finish

RED RUBBER TIP & BULB; CLEAR GLASS TUBE. SCALE FOR READING CHARGE COLOUR-CODED GREEN, WHITE AND RED. ORIGINAL BOX HOUSING HYDROMETER IR BLACK, WITH TURQUOISE AND WHITE CONTRASTS.

Decoration

N/A