Gear

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OBJECT TYPE
PHOTOGRAMMETRIC PLOTTER
DATE
1968–1970
ARTIFACT NUMBER
2004.1361.029
MANUFACTURER
Wild Heerbrugg
MODEL
3:2
LOCATION
Switzerland

More Information


General Information

Serial #
N/A
Part Number
29
Total Parts
65
AKA
ratio gear
Patents
N/A
General Description
grey metal

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
1.6 cm
Thickness
N/A
Weight
N/A
Diameter
4.5 cm
Volume
N/A

Lexicon

Group
Exploration and Survey
Category
Photogrammetry
Sub-Category
N/A

Manufacturer

AKA
Wild
Country
Switzerland
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Ontario
Period
Used c. 1970s- 1990s.
Canada
Used at NRCan's Mapping Services Branch in Ottawa, with Wild A8 Autograph.
Function
Used for horizontal component of plotting.
Technical
One of pair of 3:2 ratio reversing gear sets. This pair is one of 7 sets of ratio gears supplied as standard with A8 plotter: sets include inverse transmission (reversing) ratios. Selection of gear (and appropriate glass scale) based on flying height and plotting scale factors: Wild published a set of 4 tables to facilitate this selection and avoid computation errors [manual pp.38-41]. The gears operate between the shafts of the plotter [.1] and drawing table [.7] Received inside standard cabinet [.11] supplied by Wild with each A8 Autograph plotter.
Area Notes
Unknown

Details

Markings
"3: 2 [underlined] " stamped in white on hub. "35" crudely printed in blue ink on hub.
Missing
None.
Finish
Dull silver metal gear; teeth and hub edges are bright silver metal.
Decoration
N/A

CITE THIS OBJECT

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

Wild Heerbrugg, Gear, circa 1968–1970, Artifact no. 2004.1361, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2004.1361.029/

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