Protractor
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1996.0173.001
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- OBJECT TYPE
- VERNIER/10 IN.
- DATE
- 1920–1940
- ARTIFACT NUMBER
- 1996.0173.001
- MANUFACTURER
- HUGHES-OWENS LTD.
- MODEL
- Unknown
- LOCATION
- Montréal, Québec, Canada
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- ELECTRUM METAL; GLASS CENTRE & MAGNIFYING LENS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 47.3 cm
- Width
- 29.0 cm
- Height
- 3.8 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Mathematics
- Category
- Drawing & measuring instruments
- Sub-Category
- N/A
Manufacturer
- AKA
- HUGHES OWENS
- Country
- Canada
- State/Province
- Québec
- City
- Montréal
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- THIS TYPE OF PROTRACTOR USED C.1920S-TO PRESENT
- Canada
-
USED BY STAFF OF SURVEY & MAPPING BRANCH, EMR CANADA. THIS INSTRUMENT MAY HAVE BEEN MFD. BY, AND WAS DISTRIBUTED BY, HUGHES-OWENS, A CANADIAN CO. - Function
-
USED TO MEASURE AND DRAW ANGLES WITH PRECISION - Technical
-
FIRST PROTRACTING INSTRUMENTS, FORMED AS ACIRCLE OR SEMI-CIRCLE WITH THE ARC GRADUATED INTO 360 DEGREES OR 180 DEGREES RESPECTIVELY, APPEARED IN 16TH C. LARGER PROTRACTORS WITH A RADIUS OR PROTRACTING ARM WERE MORE COMMON C.1750+, AND OFTEN INCLUDED A VERNIER SCALE WHICH ENABLED DETAILED MEASUREMENT TO BE TAKEN TO NEAREST MINUTE OF ARC. - Area Notes
-
Unknown
Details
- Markings
- 'HUGHES OWENS LTD./ MONTREAL & WINNIPEG' INCISED ON ARM/ CIRCLE DIVIDED 0-360, IN BOTH DIRECTIONS, AT 15-MINUTE INTERVALS; VERNIER DIVIDED 15-0-15, READING TO 1-MINUTE OF ARC/ PT CASE STAMPED 'K/Co' IN LOWER RIGHT CORNER OF CASE TOP. PLATE MOUNTED INSIDE LID READS: 'The Hughes, Owens Co., Ltd./ MONTREAL WINNIPEG/ TORONTO OTTAWA VANCOUVER'/ HANDWRITTEN ON MASKING TAPE LABEL APPLIED TO CASE TOP: '...[?] WIGHT.'
- Missing
- NONE
- Finish
- DULL, SMOOTH SILVER METAL FINISH. SOME BLUEING OF SET SCREWS ON COLLAR CLIP & ON MAGNIFIER MOUNTING. PT CASE IS WOOD: EXTERIOR COVERED WITH BLACK WOVEN-TEXTURED IMITATION LEATHER; PADDED & LINED WITH BLUE VELVET
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
HUGHES-OWENS LTD., Protractor, circa 1920–1940, Artifact no. 1996.0173, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1996.0173.001/
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