Science and technology*



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Science and technology*

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Science and technology*

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Science and technology*

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  • GLEN glen-1283-is-glen-cartoon-m-8787-328
  • Item
  • June 10, 1976
  • Part of Tom Innes fonds

Innes, Tom, Calgary, Alberta

1000 KW DC generator for street railway.

Items consist of one negative, one original print, two duplicate originals and one copy print showing an interior shot of the substation. Title is taken from the subject matter of the photograph;The substation is located at 718 - 9th Avenue SW;See W. E. Hawkins, "Electrifying Calgary", p 208-209;35mm negative located in Box 02, Bay 222, Shelf 05

A visit to a maintenance hole.

Items consist of one negative and one copy print of the maintenance hole. Title is taken from the subject matter of the photograph;Maintenance holes served as the junction centres for the underground conduit/duct system. The electric cables were connected and redirected as necessary in the maintenance holes. The transformers were also located in the maintenance holes;"Man hole";Many other negatives and prints are available of the visit to a maintenance hole. Many show the extent of the underground tunnel;35mm negatives located in Box 09, Bay 222, Shelf 05

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