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Start Over You searched for: Date 1910 to 1914 Remove constraint Date: <span class="from" data-blrl-begin="1910">1910</span> to <span class="to" data-blrl-end="1914">1914</span>-
76 items
Laboratory Wood Work : Physics, Biology, Chemistry, Physiography, Drawing Tables, Office Furniture, Domestic Science, Manual Training, Benches, etc.
- After 1910 – before 1913
An early 20th-century catalog of laboratory furniture equipment manufactured and sold by Leonard Peterson & Co. The fully illustrated catalog primarily advertises custom-built benches and cabinetry for science…
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2 items
Kipp's Apparatus
- Circa 1880 – 1920
A Kipp's apparatus, also called a Kipp generator, was an instrument designed for the preparation of small volumes of gases. The instrument was invented around 1844 by the Dutch pharmacist Petrus Jacobus Kipp (1808-1864)…
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Hand-crank Centrifuge, Babcock Milk Tester
- After 1900 – before 1950
A metal, hand-crank centrifuge with a three-pronged metal base. The base is painted a rusty red color and has been attached to a wooden board for stability. A long metal crank on the side of the base bends at a…
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Mortar and Pestles
- After 1868 – before 1944
Two sets of mortar and pestles belonging to Georg Bredig (1868-1944). The larger is made of white porcelain and the smaller is made from agate. Mortar and pestles are used to manually grind or crush a sample into a fine…
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6 items
No. 4 Inverted Mantle with No. 8 Magnesia Ring
- 1890 – 1930
Unused Welsbach No. 4 Inverted Mantle and No. 8 Magnesia Ring in its original cardboard box from Lindsay Light and Chemical Company.
The Welsbach gas mantle is a device made of fibers impregnated with oxides of cerium…
- Creator Of Work Welsbach Gas Light Company
- Contributor Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929
- Subject Lighting--Equipment and supplies, Incandescent lamps, Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929, Gas-lighting, Incandescent gas-lighting, Rare earth industry, Welsbach Gas Light Company, Rare earths
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2 items
Portrait of a sitter, possibly Aleksandr Nikolaevich Lebedev, 1910
- 1910-Aug-01
Black and white stereograph addressed to Georg Bredig (1868-1944) of a scientist, possibly Aleksandr Nikolaevich Lebedev (1869–1937) posing with a table of glassware and apparatuses. The work is signed by Peter…
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Models of engines
- 1912
Catalog entries for steam and gas engines.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central Scientific Company.…
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Wimherst Self-Charging Static Machine
- 1912
Catalog entry for a Wimhurst Machine, a static electricity generator used for experiments and powering X-ray machines.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory…
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Wave Apparatus
- 1912
Catalog entry for wave apparatuses for the study of transverse and longitudinal waves.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences…
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CENCO Meters
- 1912
Catalog entries for voltameters, instruments for measuring both voltage and amperes of direct electric current.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments…
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Various Vacuum Tubes
- 1912
Catalog entry for various vacuum tubes for cathode-ray demonstrations, including Crookes' Tubes, Holtz' Tube, and Lenard's Tube.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of…
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Melloni's Apparatus and Parabolic Reflectors
- 1912
Catalog entries for Parabolic Reflectors, used to collect sound, light or radio waves,
and Melloni's Apparatus, for demonstrating the phenomena of absorption, polarization, reflection, and refraction of radiant heat.
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Various Geissler Tubes
- 1912
Catalog entry for various geissler tubes for demonstration purposes. Invented by the glassblower, Johann Heinrich Wilhelm Geissler (1815-1878), a light is produced when an electric current is passed through the rarefied…
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Spectroscopes
- 1912
Catalog entry for two spectroscopes. Spectroscopes use a lens or prism to disperse light into wavelengths. The spectroscopes shown can be handheld (top image) or attached to a camera (bottom image) to record the…
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Precision Photometers
- 1912
Catalog entry for instruments designed for photometric analysis. Photometers can be used to measure the presence and concentration of organic and inorganic compounds in solution by determining the absorbance of specific…
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Heavy Current Static Machines
- 1912
Catalog entry for a heavy current static machine.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central Scientific…
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Universal Physical Laboratory Supports
- 1912
Illustration of possible combinations of laboratory equipment on the "Universal Physical Laboratory Supports."
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments…
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Lamp Rheostat
- 1912
Catalog entry for "Parsons' latest improved design, for controlling incandescent lighting circuits, and for demonstrating the laws of series and parallel combinations."
Part of Catalog K: Physical Apparatus for…
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Electrometers
- 1912
Catalog entries for a quadrant electrometer and an electrometer for radioactive measurements.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical…
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Electro Magnet with Copper Tube Attachment
- 1912
Catalog entry for an Electro Magnet apparatus. "This apparatus was designed to supply our own laboratory with an electro-magnet of sufficient strength and field concentration for magnetizing, experimentation, etc. With…
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Current Electricty: Standard Cells and Dynamo Analysis Apparatus
- 1912
Catalog entries for standard battery cells and a Dynamo Analysis Apparatus, an early example of an electrical generator.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory…
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College Spectrometer (Wilson No. 2)
- 1912
Catalog entry for an instrument that measures the wavelengths of light through a chemical sample. Can be used to determine elements in a sample when different elements emit different wavelengths of light. The…
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Apparatus for Showing Tesla's Experiments
- 1912
Apparatus for showing Tesla's experiments with electricity.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central…
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Apparatus for Lecture Table Demontration with Selenium Cells
- 1912
"These cells show the extraordinary property which selenium possesses of changing its electrical resistance under the influence of light."
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog…
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Alternating Current Demonstration Apparatus
- 1912
Apparatus for showing the principles of an induction or alternating current motor and demonstrating the rotating magnetic field.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of…