Projector part
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1987.1183.013
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- OBJECT TYPE
- N/A
- DATE
- Unknown
- ARTIFACT NUMBER
- 1987.1183.013
- MANUFACTURER
- KELSH INSTRUMENT CO. INC.
- MODEL
- Unknown
- LOCATION
- Baltimore, Maryland, United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 13
- Total Parts
- 19
- AKA
- projector component
- Patents
- N/A
- General Description
- COMPONENTS ARE METAL; SOME SYNTHETIC HOSES, CORDS & FITTINGS/ GLASS OPTICS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 27.0 cm
- Width
- 25.5 cm
- Height
- 15.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Photogrammetry
- Sub-Category
- N/A
Manufacturer
- AKA
- KELSH
- Country
- United States of America
- State/Province
- Maryland
- City
- Baltimore
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- KELSH PLOTTERS WERE FIRST USED IN CANADA IN MID-1950s & WERE USED INTO 1970s
- Canada
-
KELSH PLOTTERS REPLACED MULTIPLEX PLOTTERS AS THE PRINCIPLE PLOTTING UNITS OF BOTH MILITARY & DEPT. OF ENERGY, MINES & RESOURCES (EMR) IN CANADA IN EARLY 1960s (REF 1, P.2). - Function
-
TO PROJECT STEREOSCOPIC MODEL IN ORDER TO INTERPRET, MEASURE & PLOT DATA GATHERED FROM AERIAL SURVEY PHOTOGRAPHS. - Technical
-
KELSH PLOTTER IS A PROJECTION INSTRUMENT USING FULL SIZE DIAPOSITIVES (SAME SIZE AS AERIAL CAMERA WHICH TOOK PHOTOS). IT CONFINES ILLUMINATION TO AN AREA APPROX. 1 SQ INCH ON EACH DIAPOSITIVE-ONLY THE PART OF THE MODEL APPEARING ON THE TRACING TABLE PLATEN IS ILLUMINATED. THIS RESULTS IN EXCELLENT RESOLUTION OF STEREOSCOPIC IMAGE (REF 2, P.175; REF 1, P.47). - Area Notes
-
Unknown
Details
- Markings
- ‘1/ LENS No./ 1866' incised on plates screwed to both sections of frame. Dymo label near collar reads: ‘CAL. 130 GLASS EMUL. UP CAMS IN'. Metal plate screwed inside base reads: ‘KSP 5-64'.
- Missing
- N/A
- Finish
- PRINCIPALLY GREY, BLACK OR DRAB-GREEN IN COLOUR/ In 2 sections for #1 projector (.9)
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
KELSH INSTRUMENT CO. INC., Projector part, Unknown Date, Artifact no. 1987.1183, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.1183.013/
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