Beckmann thermometer
Date1900-1915
Inventory Number4424
ClassificationThermometer
Subject
Maker
German
Cultural Region
Dimensions0.8 x 55.4 cm (5/16 x 21 13/16 in.)
case: 58.7 x 2.2 cm (23 1/8 x 7/8 in.)
case: 58.7 x 2.2 cm (23 1/8 x 7/8 in.)
Material
Accessoriesbrass cylindrical case
DescriptionA thermometer consisting of a glass tube with a mercury capillary enclosed in an outer glass vessel closed with a brass cap. The lower part of the thermometer that leads to the mercury bulb is thinner and unmarked, with the upper section containing a milk glass scale calibrated from 0 to 5.6 degrees Celsius with a precision of 1/100 of a degree. The mercury capillary makes an S-bend near the top of the thermometer.
Signedunsigned
Inscribedmarked: Centigrade Jenaer Normalglas
Curatorial RemarksA paper label mentions it was "Used by Ing?re 1915 16"
FunctionThis is a thermometer that the user can fill with different amounts of mercury to use at different temperature ranges. It is very precise but because of this it has a narrow range of 5.6 degrees Celsius. To set it up for use, the thermometer would be placed in contact with a substance a few degrees above the upper required limit of temperature, and enough mercury would then be poured in so that the stem filled up to the s-bend. That way, the thermometer would have a range up to that temperature.
Bender und Hobein
Date: 1900-1930
Accessories: black cylindrical cardboard case with red inner surface (top missing)
Object number: 4433
Robert Bötze
Date: 1880-1920
Accessories: brass cylindrical case with square flange near top
Object number: 4425
Corning
Date: 1900-1920
Accessories: black cardboard case with green inner surface
Object number: 4406
American
Date: 1890-1910
Accessories: cylindrical cardboard case with green inner surface
Object number: 4438
German
Date: 1890-1920
Accessories: black cardboard case with red inner surface
Object number: 4398
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with green inner surface
Object number: 4399
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1910
Accessories: green cardboard case
Object number: 4389
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with red inner surface
Object number: 4397
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with marbled paper inner surface
Object number: 4407
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: brass cap with knob at top; black cardboard case with red inner surface
Object number: 4400
Fritz Köhler
Date: 1900-1920
Accessories: black cylindrical cardboard case with red inner surface
Object number: 4435
German
Date: 1907
Accessories: black cylindrical case with red interior
Object number: 1998-1-1009