Lead, battery

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Ingenium, 1970.0462.006
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OBJECT TYPE: N/A
DATE: 1957–1960
ARTIFACT NUMBER: 1970.0462.006

MANUFACTURER: TELLUROMETER (PTY) LTD.
MODEL: MRA1
LOCATION: Cape Town, South Africa

More Information

General Information

Serial #: N/A
Part Number: 6
Total Parts: 6
AKA: N/A
Patents: N/A
General Description: MASTER & REMOTE UNITS PRIMARILY METAL, WITH GLASS & SYNTHETIC COMPONENT PARTS; LEATHER CARRYING HANDLES. HANDSETS ARE SYNTHETIC, WITH METAL CANNON CONNECTORS. BATTERY LEADS HAVE METAL & SYNTHETIC COMPONENTS. METAL CASES HAVE LEATHER HANDLES & CARRYING STRAPS. RUBBER OR SYNTHETIC VIEWING HOODS SUPPLIED FOR.1 &.4

Dimensions

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

Length: N/A
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Exploration and Survey
Category: Measurement-distance
Sub-Category: N/A

Manufacturer

AKA: TELLUROMETER
Country: South Africa
State/Province: Unknown
City: Cape Town

Context

Country: Canada
State/Province: Unknown
Period: THIS TYPE OF INSTRUMENT USED C.1957 - EARLY 1960S AND POSSIBLY LATER. MRA2 INTRODUCED IN C.1960
Canada: TELLUROMETER QUICKLYEMBRACED BY CANADIAN SURVEYORS, AND USED EXTENSIVELY ON GOV'T SURVEYS THROUGHOUT CANADA. THE USE OF TELLUROMETRY DRASTICALLY REDUCED TIME, LABOUR & COSTS IN SURVEYS CONDUCTED IN THE MOUNTAINOUS AREAS OF THE CANADIAN NORTHWEST AND FAR NORTH. CANADIAN SURVEYORS AMONG FIRST TO USE & ADVOCATE USE OF TELLUR
Function: USED TO MEASURE DISTANCE BY TIMING PASSAGE OF RADIO WAVES SENT FROM MASTER SET AT ONE END OF LINE SURVEYED TO REMOTE SET AT OTHER END, AND SIGNAL RETURNED TO MASTER.
Technical: TELLUROMETER FIRST FULLY PORTABLE INST. CAPABLE OF MEASURING DISTANCES BETWEEN POINTS BY MEANS OF RADIO MICROWAVES. MRA1 OFFERED PRECISE MEASUREMENT FROM 500FT - 35MI, ACCURATE TO 3 PARTS PER MILLION +/- 2". UNLIKE EARLIEST VERSIONS, MRA1 COULD BE USED DAY OR NIGHT, IN FAIR OR FOGGY CONDITIONS.
Area Notes: Unknown

Details

Markings: Markings as per .3 except "UNIVERSAL CLIP/ PAT./ 50 AMP."; "MUELLER/ ELEC. Co./ CLEVELAND, O./ MADE IN U.S.A."; and "No 24C" stamped into clips.
Missing: TELLUROMETERS COMPLETE: REQUIRE TRIPODS & BATTERY-PACKS TO OPERATE. FIELD CHECKED DEC. 30, 1969 BY TELLUROMETER & TESTED OPERABLE.
Finish: One red and one black synthetic and metal battery lead with a fabric covered wire and a metal end connector.
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

TELLUROMETER (PTY) LTD., Lead, battery, circa 1957–1960, Artifact no. 1970.0462, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/item/1970.0462.006/

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