Theodolite
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1990.0281.001
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- OBJECT TYPE
- FIRST ORDER/GEODETIC/FIELD
- DATE
- 1959–1975
- ARTIFACT NUMBER
- 1990.0281.001
- MANUFACTURER
- KERN & CO. LTD.
- MODEL
- DKM3
- LOCATION
- Aarau, Switzerland
More Information
General Information
- Serial #
- 157844
- Part Number
- 1
- Total Parts
- 5
- AKA
- N/A
- Patents
- N/A
- General Description
- METALS, INCLUDING ALUMINUM, STEEL & PROBABLY BRASS. GLASS OPTICS & LEVEL TUBES. METAL AND/OR SYNTHETIC FITTINGS, ETC./ .1PT CASE IS METAL WITH LEATHER CARRY STRAP.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 26.0 cm
- Width
- 18.0 cm
- Height
- 31.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- KERN
- Country
- Switzerland
- State/Province
- Unknown
- City
- Aarau
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- THIS TYPE OF INSTRUMENT USEDC.1959-1975.
- Canada
-
THIS TRANSIT USED BY GEODETIC SURVEY OF CANADA TO CONDUCT FIRST ORDER TRIANGULATION SURVEYS ACROSS CANADA. IT WAS ALSO USED IN TRAVERSING & ASTRONOMICAL SURVEY OPERATIONS. - Function
-
USED IN FIRST & SECOND ORDER TRIANGULATION SURVEYS; IN CONTROL SURVEYS AND FOR TIME DEFORMATION MEASUREMENTS; AND TO DETERMINE AZIMUTH, POSITION & TIME IN ASTRONOMICAL SURVEYS. - Technical
-
DKM 3 WAS THE LARGEST & MOST PRECISE THEODOLITE MFD BY KERN IN LATER 1950S - EARLY 1960S. IT FEATURES A SHORT BARRELED MIRROR-LENS TELESCOPE WITH WIDE OBJECTIVE APERTURE, AND PROVIDES A REAL, UPRIGHT IMAGE (UNLIKE MOST INSTS., WHICH PRESENT AN INVERTED IMAGE). AUXILIARY TELESCOPE, WHICH USES OCCULAR OF MAIN TELESCOPE, IS ACTIVATED BY A SWITCHING LEVER, USED FOR FINDING SIGNALS & ANGLE MEASUREMENT IF SIGHTS ARE SHORT. - Area Notes
-
Unknown
Details
- Markings
- .1 'Kern/ AARAU/ SUISSE/ SWITZERLAND/ DKM3/ No 157844' INCISED & HIGHLIGHTED IN WHITE ON THEODOLITE/ .1-.4PT CASE: 'Kern/ SWISS/ SWISSE' CAST IN RAISED PRINT ON LATCHES SECURING LID TO BASE. DYMO LABEL ON LID READS: 'DKM 3 SER 157844'. MAILING LABEL ON CASE TOP READS: 'To/ GEODETIC SURVEY OF CANADA,/ 360 LEBRETON STREET, OTTAWA, ONT.'; HANDWRITTEN IN RED MARKER: 'ASTRO/ 85/11/28'. '157844' INCISED IN BASE OF CASE
- Missing
- NONE, HOWEVER ELECTRIC LIGHTING SET WITH BATTERY CASE & HAND LAMP WAS ADVERTISED AS STANDARD EQ. SUPPLIED WITH DKM 3.
- Finish
- THEODOLITE, TRIPOD HEAD & .1PT CASE ALL HAVE DRAB-GREEN ENAMEL FINISH./ .1 STANDARD BASE HAS WRINKLE FINISH./ .1PT HAS MOTTLED FINISH./ .1 THEODOLITE HAS BRUSHED ALUMINUM ADJUSTMENT KNOBS & FITTINGS, AND OBJECTIVE LENS HOUSING. SECURING PLATE INSIDE./ .1 CASE BASE ALSO HAS BRUSHED SILVER METAL FINISH./ .5PT CASE HAS UNFINISHED WOOD INTERIOR & EXTERIOR
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
KERN & CO. LTD., Theodolite, circa 1959–1975, Artifact no. 1990.0281, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1990.0281.001/
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