5/20/2023 0 Comments Federal signal![]() ![]() The 15 inch rotor from the C2 1/2 model was also later reused by Federal Signal for the popular 2001 series. The first and third generation of the Model 500, Federal's mid-range rotating siren, made use of the C3 1/2's rotor, while the second generation models used the STH-10's rotors. ![]() These sirens had their own custom housings, but were otherwise identical to their Federal counterparts. The sirens in this series were also sold by other companies who partnered with Federal Signal, such as GCS and W.S. The C3 1/2 size was still available with a coding damper for a short time before it was discontinued, as siren coding had become obsolete in favor of simpler methods. Up until 1959, C2 1/2 and C3 1/2 sized models also included a service door for the motor, with subsequent sirens lacking the door. The weatherproof housing was now changed, adding screens for the output and intake, and most notably, changing the design of the cowl to project sound further outwards, as pole mounting was becoming more popular. 5OC or 7OC.īy the time the Fedelcode series had been discontinued in the 1950s, the series had been streamlined to feature only the Model 2, C1 1/2, C2 1/2, and C3 1/2, with the rest being discontinued. These coded models generally have the additional designation of "OC", such as the Type Mach. This was used to tell volunteer firefighters where a fire was, using a numbered series of "fire zones" and blasting a number of pulses corresponding to which zone the fire was in. Fedelcode sirens came with the option to add a coding damper, which used a motor-driven (early) or electromagnetic (later) damper to block and unblock the siren's intake, allowing it to produce a "pulse" of noise. The Fedelcode was designed with a very steep cowl, or "skirt" to project sound downwards and be dispersed by a building roof, as roof mounts were the most popular mounting style at the time. The designs included a weatherproof housing to prolong the life of the siren inside. Single rotor Fedelcodes came in three main sizes, the C1 1/2, C)2 1/2 (or B2 1/2), and C3 1/2. Unlike the later Model series sirens, Fedelcodes came in a wide variety of shapes and sizes throughout the years. These sirens were designed to replace the antiquated Type B, which had lackluster performance. The earliest sirens in the Model series began production in 1929 as the Fedelcode series, manufactured by the Federal Electric Company. While the Model 2 is part of this series, it is covered in its own article and won't be covered here. They were also rebranded and resold by other siren manufacturers, such as GCS and W.S. Popular as fire sirens, tons of these sirens remain in service despite being discontinued roughly 35 years ago. Reiff.The Model X Series is a series of medium sized omnidirectional sirens produced by Federal Signal over the span of 50 years, going through many design changes and variants throughout the years. Wilson, with additional contributions from Stephen R. By the end of the 1990s, when Federal Signal was a leading manufacturer of emergency vehicles and street sweepers as well as signs and sirens, the company approached $1 billion in annual sales and employed about 1,500 people in the Chicago area.ĭictionary of Leading Chicago Businesses (1820-2000) in 1975, the company's general offices were moved to suburban Oak Brook. After changing its name to the Federal Signal Corp. By the middle of the 1960s, the company-a leader in the field of electric signs-was doing about $30 million in annual sales and had about 1,500 employees. In 1958, Federal moved its main plant from 87th and State Streets on Chicago's South Side to Blue Island, the suburb a few miles to the southwest. After spending a few years under the control of Chicago utilities titan Samuel Insull, the company became independent again in the 1930s, when it became the Federal Sign & Signal Corp. In 1915, the company started making sirens. The Federal Electric Co., a manufacturer of electric signs, was incorporated in Illinois in 1901 by John Goehst and brothers John and James Gilchrist. ![]()
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