Drawing
Lamp or Exploring Coil
| Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famous for inventing the electrical transformer in 1904. He was also known for his bequest of what was the core of the UW-Madison rare book collection and his estate on Rock Island in Door County. This item, from the Thordarson Electric Manufacturing Company Electrical Laboratory and Demonstration Apparatus catalog is described as a "coil of many turns constructed so that a suitable incandescent lamp may be screwed into contact with its two terminals and permit a most vivid demonstration of the strength and direction of an alternating current field in various positions." |
| Image ID: | 28506 |
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| Creation Date: | date unknown |
| Creator Name: | Unknown |
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| Collection Name: | Chester Hjörtur Thordarson papers, 1880-1945 |
| Genre: | Drawing |
| Original Format Type: | drawings |
| Original Format Number: | M97-130 Box 6 Folder 1 |
| Original Dimensions: | 7 x 9 inches |
| See M97-130, Box 12, Folder 3 for catalog. |
| Inventions |
| Electric apparatus and appliances |
| This image is issued by the Wisconsin Historical Society. Use of the image requires written permission from the staff of the Collections Division. It may not be sold or redistributed, copied or distributed as a photograph, electronic file, or any other media. The image should not be significantly altered through conventional or electronic means. Images altered beyond standard cropping and resizing require further negotiation with a staff member. The user is responsible for all issues of copyright. Please Credit: Wisconsin Historical Society. |
| Location: | Wisconsin Historical Society Archives, 4th Floor, Madison, Wisconsin |
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