Guest
Join this channel to get access to perks: Want to learn more about Periscope Film and get access to exclusive swag? Join us on Patreon. Visit Visit our website Produced in the 1940s, this vocational guidance film made by Carl F. Mahnke Productions demonstrates the industrial applications of air conditioning, ventilation and heating. This was part of a series of vocational guidance films produced by the company and this video’s focus on air conditioning and heating illuminates the growing importance of air conditioning and climate control in the United States as well as the new careers that emerged from its rise. The educational film contains valuable footage of air conditioning technology in the 1940s in addition to footage of students and apprentices learning their craft. Though Willis Carrier invented modern air conditioning in 1902, the technology took time before it became a fixture of American life. At first, its use was reserved for commercial and industrial settings that required a certain temperature such as printing and textile plants. Following World War II and the ensuing economic boom, air conditioning grew increasingly common in residential settings. (00:11) Women work in factories (00:33) A woman uses a textile mill (00:48) Air conditioning helps temperatures remain suitable for threads and yarn (00:52) AC also helps newspaper printing plants (01:15) Footage of air conditioning and heating machines (01:29) Engineers study in a classroom (01:50) An overview of jobs related to air conditioning (02:12) Such as production engineers (02:25) Assemblage of cooling coils (02:31) An air conditioning salesman has marketing and scientific skills (03:00) Mechanics install the equipment (03:22) A building engineer maintains air conditioning (03:57) A man troubleshoots an AC issue (04:04) Piping provides an additional employment opportunity (04:16) Sheet metal workers are also needed (04:57) Apprentices learn the necessary skills (05:07) Air conditioning classes in a trade school (05:28) Students learn from a model installation (05:38) Model of a radiant heating system (05:58) Apprentices practice their skills (06:04) They work on a compressor (06:18) He learns about gauges and control (06:24) Particularly steam, water, and air pressure gauges (06:37) Student practices welding (06:50) Another trains in sheet metal skills (07:32) Footage of an air conditioning engineer (07:45) Air conditioning machine We encourage viewers to add comments and, especially, to provide additional information about our videos by adding a comment! See something interesting? Tell people what it is and what they can see by writing something for example: “01:00:12:00 -- President Roosevelt is seen meeting with Winston Churchill at the Quebec Conference.“ This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit
