Holder, drawing point

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OBJECT TYPE
PHOTOGRAMMETRIC PLOTTER
DATE
1968–1970
ARTIFACT NUMBER
2004.1361.058
MANUFACTURER
Wild Heerbrugg
MODEL
Unknown
LOCATION
Switzerland

More Information


General Information

Serial #
N/A
Part Number
58
Total Parts
65
AKA
drawing lead holder
Patents
N/A
General Description
predominantly silver metal; green lead

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
14.0 cm
Thickness
N/A
Weight
N/A
Diameter
3.7 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
presumably used c. 1970s- 1990s.
Canada
Accessory for plotter used in Canada's national mapping program c. 1960s-early 1990s, and is an example of the last analogue plotting devices used by the Topographic Service of Canada. With the exception of the Wild A10 [few of which were used in Canada], this machine was the most sophisticated plotter available before digital technology. This machine was converted c. 1995-96 to digitize the motions (X,Y & Z) with the addition of encoders and a control pad which interfaced to a computer. The Kern encoders and control module were installed by Terra Surveys of Ottawa when they rented this machine for the MOM project, completing the large scale mapping of Riyadh, Saudi Arabia. The A8 was on loan to Terra for the duration of the project's digital compilation stage. [Ref. 1]
Function
To correctly support and position drawing leads, scribers, etc. for use on plotting table.
Technical
One of 4 drawing point holders supplied as standard accessory for Wild A8 Autograph. The holder with lead (or scribing point, etc.) is fitted to drawing arm of plotting table: when in use, the area around the drawing point is illuminated. [Ref. 3, pp.20-1.] This holder is fitted with a green drawing lead.
Area Notes
Unknown

Details

Markings
None evident.
Missing
Appears complete.
Finish
Bright and brushed silver metal holder and point; grip portion of central shaft is cross-hatched; dark green drawing lead.
Decoration
N/A

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

Wild Heerbrugg, Holder, drawing point, circa 1968–1970, Artifact no. 2004.1361, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2004.1361.058/

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