oxhydric lamp
Date1880-1890
Inventory Number1998-1-0262
ClassificationBlowtorch
Subject
Attributed to
Théodore and Albert Duboscq
circa 1880 - 1890
Cultural Region
Place of Origin
Dimensions40.7 x 12.1 x 121.1 cm (16 x 4 3/4 x 47 11/16 in.)
Material
DescriptionA tall brass stand with two sections, a lower column which is attached via a height-adjusting screw to a telescoping column with a small platform on top with three brass brackets around it. On the latter was fixed a cylindrical piece of lime (calcium oxide, CaO, missing here).
Attached to the lower column by two metal brackets is the mouth of a burner consisting of a vertical tube that first rises vertically and then bends to point its nozzle towards slightly above the stand platform. The burner is fed by two tubes through which passes hydrogen and oxygen (or air) gases. The burning flame on the lime renders the latter incandescent, producing a bright light (up to 200 candles). The position of the burner on the piece of lime is adjusted by a screw and spring mechanism. This lamp is unsigned, but can be attributed to the Duboscq firm.
Attached to the lower column by two metal brackets is the mouth of a burner consisting of a vertical tube that first rises vertically and then bends to point its nozzle towards slightly above the stand platform. The burner is fed by two tubes through which passes hydrogen and oxygen (or air) gases. The burning flame on the lime renders the latter incandescent, producing a bright light (up to 200 candles). The position of the burner on the piece of lime is adjusted by a screw and spring mechanism. This lamp is unsigned, but can be attributed to the Duboscq firm.
Signedunsigned
FunctionThis lamp was used to provide a bright light, which could be used in a projection lantern to make all types of optical experiments.
For the original description of the oxhydric lamp from one of Duboscq's catalogues, see here.
For the same lamp, see also the following Duboscq catalogue here.
For the description of the type of projection lantern in which this lamp was used, see one of Duboscq's catalogues here.
For the original description of the oxhydric lamp from one of Duboscq's catalogues, see here.
For the same lamp, see also the following Duboscq catalogue here.
For the description of the type of projection lantern in which this lamp was used, see one of Duboscq's catalogues here.
Théodore and Albert Duboscq
Date: 1880-1890
Accessories: small metal piece
Object number: 1998-1-1635
Carl Zeiss Jena
Date: circa 1926
Accessories: wooden box with two hook-and-eye latches to fasten front opening; in instrument file: instruction book (photocopy); Geissler tube labeled "H2"; carboard tube containing German thermometer C in stainless steel holder that screws into instrument; glass bottle with cork stopper labeled "Monobromnaphthalin, Germany nD=1 658"; small round cardboard box labeled "For Pulfrich Refractometer" containing one tubulure
Object number: 1996-1-0229
American Meter Company
Date: circa 1901
Object number: 1997-1-1599
Adam Hilger Ltd.
Date: circa 1930
Object number: 1996-1-0675
Davies Charlton Ltd.
Date: circa 1960
Accessories: original cardboard box
Object number: DW0337
See also/See also
