Lesson plan
Latham loop
The Latham Loop is used in film projection and image capture. It isolates the filmstrip from vibration and tension, allowing movies to be continuously shot and projected for extended periods. Invention of the Latham loop is usually credited to film pioneers William Kennedy Laurie Dickson and Eugene Lauste. Both men worked with Woodville Latham, developing a motion picture camera and projector in 1895. Dickson later acknowledged Lauste as inventor of the loop, though rival claims were made in support of another Latham associate, engineer Enoch J. Rector, who used the technology to shoot an hour-and-a-half-long documentary film, The Corbett-Fitzsimmons Fight, in 1897. Woodville Latham applied for a patent on June 1, 1896. In his patent application, Latham wrote, :In order that these parts [of the film projector] may operate as described, it is essential that the loop of slack film be maintained at all times ready for the intermittingly-acting device and also that the slack-manipulating and the intermittingly-moving devices be positively driven by mechanism which will absolutely insure the presence of the slack and the accurate movement of the film.…
Article summary
The Latham Loop is used in film projection and image capture. It isolates the filmstrip from vibration and tension, allowing movies to be continuously shot and projected for extended periods. Invention of the Latham loop is usually credited to film pioneers William Kennedy Laurie Dickson and Eugene Lauste. Both men worked with Woodville Latham, developing a motion picture camera and projector in 1895. Dickson later acknowledged Lauste as inventor of the loop, though rival claims were made in support of another Latham associate, engineer Enoch J. Rector, who used the technology to shoot an hour-and-a-half-long documentary film, The Corbett-Fitzsimmons Fight, in 1897. Woodville Latham applied for a patent on June 1, 1896. In his patent application, Latham wrote, :In order that these parts [of the film projector] may operate as described, it is essential that the loop of slack film be maintained at all times ready for the intermittingly-acting device and also that the slack-manipulating and the intermittingly-moving devices be positively driven by mechanism which will absolutely insure the presence of the slack and the accurate movement of the film.…
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.