Micrometer
Use this image
Can I reuse this image without permission? Yes
Object images on the Ingenium Collection’s portal have the following Creative Commons license:
Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
ATTRIBUTE THIS IMAGE
Ingenium,
2007.0267.001
Permalink:
Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.
DOWNLOAD IMAGEPURCHASE THIS IMAGE
This image is free for non-commercial use.
For commercial use, please consult our Reproduction Fees and contact us to purchase the image.
- OBJECT TYPE
- FILAR/TELESCOPE
- DATE
- 1939–1945
- ARTIFACT NUMBER
- 2007.0267.001
- MANUFACTURER
- Pocklington, Thomas Ltd.
- MODEL
- Unknown
- LOCATION
- Toronto, Ontario, Canada
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- Brass body; glass lens
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 10.2 cm
- Width
- 9.7 cm
- Height
- 7.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- 8.6 cm
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- POCKLINGTON
- Country
- Canada
- State/Province
- Ontario
- City
- Toronto
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Thomas Pocklington Ltd. made and repaired surveying instruments in Toronto between 1925 and 1992. It was one of the few Canadian firms producing precision instruments before WWII. Thomas (b. 1882), the founder, was trained as an instrument maker in the U.K. He moved to Toronto in the early 20th century and worked for Consolidated Optical Co. until he started his own business in 1925. From that time until 1940 the firm occupied a location near what is now the Eaton centre; from 1940 to 1953 the firm occupied 30 Bridgman Ave (presently Tarragon Theatre); from 1953 to 1992 they occupied 208 Weston Rd. The CSTM has the Brightly circular dividing engine (CSTM ARTIFACT # 1992.1776) purchased by the firm in 1940. Thomas was succeeded by his son William, who was succeeded by his two sons John and Ronald. Very little is known about the small precision instrument industry in Toronto in the late 19th and early 20th century. Our growing collection of archival material and artifacts related to Pocklington, one of the leaders in that community, provides a more complete picture of this history. (Taken directly from acquisition proposal) - Function
-
An instrument for measuring small distances in the field of an eyepiece. - Technical
-
Instruments like this one document important phases in the history of this firm. This device represents the firm's involvement in WWII. - Area Notes
-
Unknown
Details
- Markings
- On top: "1 DIV. ON DRUM =.001"/ measurements on dials and indicators in glass windows
- Missing
- Appears complete.
- Finish
- Black metal body with brass and silver-coloured metal knobs.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Pocklington, Thomas Ltd., Micrometer, circa 1939–1945, Artifact no. 2007.0267, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2007.0267.001/
FEEDBACK
Submit a question or comment about this artifact.
More Like This
2007.0267.001
