{"id":5029,"date":"2025-11-28T09:00:00","date_gmt":"2025-11-28T15:00:00","guid":{"rendered":"https:\/\/patents.harnessip.com\/?p=5029"},"modified":"2025-11-27T10:04:35","modified_gmt":"2025-11-27T16:04:35","slug":"november-28-2025","status":"publish","type":"post","link":"https:\/\/patents.harnessip.com\/?p=5029","title":{"rendered":"November 28, 2025"},"content":{"rendered":"\n

On November 28, <\/p>\n\n\n

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Herman Casler was a pioneering American inventor and motion-picture engineer best known for co-founding the American Mutoscope and Biograph Company and for creating several foundational early-cinema technologies. Trained as a mechanical engineer, Casler first gained prominence in the 1890s when he developed the Mutoscope, a hand-cranked \u201cflip-card\u201d motion-picture viewer that displayed moving images by rapidly flipping a sequence of photographs mounted on a circular drum. [U.S. Patent No. 549,309, issued November 5, 1895, and (U.S. Patent No. 683,910, granted October 8, 1901)]. Cheaper and more durable than Thomas Edison\u2019s Kinetoscope, the Mutoscope became wildly popular in amusement parlors and helped establish Biograph as one of the most influential early film companies.<\/p>\n\n\n\n

Casler\u2019s inventive contributions extended well beyond the viewer itself. He designed the Mutograph camera, a large and robust motion-picture camera that used wide, high-quality film, giving Biograph productions their famously sharp images. He also developed improvements to film perforation, camera mechanics, and projection systems that shaped the technical standards of early cinema. <\/p>\n","protected":false},"excerpt":{"rendered":"

On November 28, Herman Casler was a pioneering American inventor and motion-picture engineer best known for co-founding the American Mutoscope and Biograph Company and for creating several foundational early-cinema technologies. Trained as a mechanical engineer, Casler first gained prominence in … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-5029","post","type-post","status-publish","format-standard","hentry","category-patent-of-the-day"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/5029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5029"}],"version-history":[{"count":1,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/5029\/revisions"}],"predecessor-version":[{"id":5031,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/5029\/revisions\/5031"}],"wp:attachment":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}