TY - PCOMM DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: In Copyright, D TI - Memo from M. E. Ahrendt to Arnold O. Beckman ID - 5m60qr936 AU - Ahrendt, M. E. DA - 1952/07/09/ YR - 1952 AV - Beckman Historical Collection, Box 13, Folder 21 VL - Beckman Historical Collection, Box 13, Folder 21 AN - Beckman Historical Collection, Box 13, Folder 21 UR - https://digital.sciencehistory.org/works/5m60qr936 AB - This memo lists the staff and resources assigned to improve the IR-2T spectrophotometer design by creating modification kits to fix what were seen (by users and by Beckman Instruments) as serious flaws in the instrument. The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this contract, Beckman Instruments developed a single-beam spectrophotometer based on Robert Battrain’s extant design, which in 1942 was sold as the IR-1. With the IR-4 in 1956, Beckman Instruments branched out into double-beam design and kicked off a golden age of IR spectrophotometer production that lasted until 1973. KW - Scientific apparatus and instruments KW - Spectrophotometer KW - Infrared spectroscopy KW - Beckman Instruments, Inc. LA - English ER -