Friez, Bendix and Belfort
The Julien P Friez Company was founded in 1876 in Baltimore, Maryland as a manufacturer of weather instruments. They operated the Belfort Observatory in Baltimore. They became Julien P Friez & Sons in 1913, and Julien died in 1916.
In 1929 the company was acquired by the Consolidated Instrument Company. A year later the company was acquired by Bendix Corporation. The Friez company operated relatively independently at first but they began calling themselves the Friez Instrument Division of Bendix sometime around 1943. They continued in operation until about 1966. Bendix was acquired by Allied Corporation (later called AlliedSignal) in 1983, which later bought Honeywell and adopted the Honeywell name.
One of Julien Friez's sons founded an instrument company in the Belfort Observatory workshop of Julien P Friez & Sons in the late 1940s, which was renamed the Belfort Instrument Company in 1949. Belfort Instrument continues to develop and sell meteorological instruments today, still in Baltimore though no longer at the Belfort Observatory location.
One of Julien Friez's sons founded an instrument company in the Belfort Observatory workshop of Julien P Friez & Sons in the late 1940s, which was renamed the Belfort Instrument Company in 1949. Belfort Instrument continues to develop and sell meteorological instruments today, still in Baltimore though no longer at the Belfort Observatory location.
A 1929 history of the Friez company may be downloaded here (15 pages):
An 1893 catalog from the Julien P Friez Company may be downloaded below (74 pages):
1931 Catalog No 5 from Friez may be downloaded below (162 pages):
A color version of the same 1931 catalog may be downloaded here via Dropbox. It is too large (460 MB) for direct download from my web service provider because it is in color.
From 1934, a catalog cut sheet showing Friez thermometers may be downloaded below (4 pages):
From 1936, a Friez catalog cut sheet for Biram Anemometers may be downloaded below (2 pages):
From 1936, a catalog cut sheet showing Friez's electrically aspirated psychrometer is available below (2 pages):
From 1936, a Friez catalog cut sheet for their Hythergraph may be downloaded below (4 pages):
From 1936, a Friez catalog cut sheet for their portable RH&T recorder may be downloaded below (4 pages):
From 1936, a catalog cut sheet showing Friez sling psychrometers may be downloaded below (4 pages):
From 1937, a Friez catalog for rain and snow gauges may be downloaded below (26 pages):
From 1938, a catalog cut sheet showing Friez humidistats may be downloaded below (11 pages):
From 1939, a brochure describing Friez barographs and microbarographs may be downloaded below (4 pages):
From 1947, a Bendix-Friez brochure showing their Weatherman remote indicating weather instruments is available below (4 pages):
A 1977 sales brochure for a Belfort 800A microbarograph may be downloaded here (2 pages):
A 1985 list of charts for Belfort recording instruments with specifications is available below (2 pages):
An undated data sheet for a Belfort 6079 aneroid barometer is available below (2 pages):
The source for charts for Friez, Bendix, and Belfort instruments is Belfort Instrument.
