Theodolite
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Ingenium,
1966.0525.001
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- OBJECT TYPE
- PORTABLE/MICROMETER/TRANSITING
- DATE
- 1910–1912
- ARTIFACT NUMBER
- 1966.0525.001
- MANUFACTURER
- Troughton & Simms
- MODEL
- DEVILLE
- LOCATION
- London, England
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 14
- AKA
- N/A
- Patents
- N/A
- General Description
- BRASS & BELL-METAL CONSTRUCTION; CIRCLES, VERNIERS & MICROMETER SCREW SCALES DIVIDED ON PLATINUM; NICKEL (?) PLATING ON LEVELLING SCREWS; GLASS OPTICS/ WOODEN KNOB ON STRIDING LEVEL/ LEATHER COVER ON WOOD CASE
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 39.4 cm
- Width
- 29.0 cm
- Height
- 45.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Measurement-angles
- Sub-Category
- N/A
Manufacturer
- AKA
- Troughton Simms
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- C.1912-1925
- Canada
-
THEODOLITE DESIGNED BY DR. E. DEVILLE, SURVEYOR GENERAL OF CANADA 1885-1924. USED ON BLOCK SURVEYS PERFORMED BY TOPOGRAPHICAL SURVEYSBRANCH C.1912-1925. - Function
-
TO DETERMINE LATITUDE, USING TALCOTT SYSTEM. USED GENERALLY TO MEASURE VERTICAL & HORIZONTAL ANGLES. - Technical
-
PRECISION THEODOLITE, DESIGNED FOR AND PROBABLY USED IN GEODETIC SURVEYING, LIKELY IN ESTABLISHING BASE LINES. - Area Notes
-
Unknown
Details
- Markings
- 'TROUGHTON & SIMMS/ LONDON' ON PLATE/ '112' ON TELESCOPE BODY TUBE & STRIDING LEVEL CASING/ 'T.S. 1049' INCISED IN LEATHER COVERING ON CASE & ON SPARE EYEPIECE DIAPHRAGM/ '112' & 'NO.3' HANDWRITTEN IN PENCIL INSIDE CASE/ HUGHES-OWENS REPAIR LABEL INSIDE CASE/ DEPT. OF THE INTERIOR-TOPOGRAPHICAL SURVEY OF CANADA-PHYSICAL TESTING LABORATORY CARD FOR BASE LINE TRANSIT 1049 112 - DATED DEC. 21 (19)25, 22-4-26.- INSIDE CASE/ CARD INSIDE LID ' 'DEPARTMENT OF THE INTERIOR, TOPOGRAPHICAL SURVEYS BRANCH/ Block Survey transit Troughton & Simms micrometer #112/ One division of striding level [?]"at 44degrees Fahr. (Length of bubble 20 div.)/ T.S. Branch Label: "...One division of latitude level = [?illegible] at 47 Fahr. (Length of bubble 20 div.)/ One div. of spare striding level = [blank]/ One division of plate level = [blank]/ One turn filar micrometer = 1.66"398 at stellar focus at 60 Fahr./ WIRE 1 2 3 4 5/ Equatorial Intervals, Circle West, Drum West,/ DATE 25/3/12'.
- Missing
- MISSING SCREW TO ATTACH KNOB TO MICROMETER EYEPIECE. ELECTRICAL LAMP FITTING, INCLUDING BULB, MOUNTED ON BRACKET MAY NOT BE ORIGINAL TO THIS THEODOLITE.
- Finish
- ANODIZED GREEN FINISH ON TELESCOPE BODY TUBE, PLATE & LIMB, & STRIDING LEVEL/ STANDARDS, LEVELLING SCREW FRAME & SELECTED FITTINGS HAVE ANODIZED BLACK FINISH/ BRIGHT LACQUERED BRASS MICROMETER EYEPIECES & SOME FITTINGS/ LEVELLING FEET HAVE NICKEL-PLATED FINISH/ LIGHT BROWN LEATHER COVER ON WOOD CASE
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Troughton & Simms, Theodolite, circa 1910–1912, Artifact no. 1966.0525, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0525.001/
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