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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>-
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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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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184 items
Physical Apparatus for Universities and Colleges Manufactured and Imported by Central Scientific Co.
- 1912
A catalog of laboratory instruments for the physical sciences made by the Central Scientific Company. Founded in 1900 in downtown Chicago, Central Scientific manufactured and distributed science teaching equipment for…
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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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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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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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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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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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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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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…
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"The Geryk" Mechanical Air Pump for High Vacua
- 1912
Figure depicting "The Geryk" air pump, "an English pump (Fleuss' patents), and a strictly mechanical device with no valves in the usual sense of the word..."
Part of Catalog K: Physical Apparatus for Universities and…
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Spectrometers with Polarizing Attachment and Camera Attachment
- 1911
Top figure is a laboratory spectrometer with a polarizing attachment. Lower figure is a spectrometer with a third arm and camera attachment.
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Small Comparator
- 1911
An "instrument intended for measuring spectra photographs, gratings, divided scales, or such objects which can be focused by the microscope and will allow rapid measurements of the highest possible accuracy." The design…
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Melloni's Apparatus
- 1911
"For studying the reflection, refraction, absorption and polarization of radiant heat."
- Creator Of Work Wm. Gaertner & Company
- Subject Scientific apparatus and instruments, Laboratories--Equipment and supplies, Measuring instruments
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Littrow Spectroscope
- 1911
"The collimators and observing telescopes have apertures of 50mm., and focus by rack and pinion. Two 60 degree prisms of heavy flint glass and of 70mm. side are furnished with the instrument. The mirror may be used in…
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Ives Duplex Diffraction Spectroscope
- 1911
"This spectroscope will show the first order of spectrum all at once across the field of the eyepiece."
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15 items
Instruments of Precision Laboratory Apparatus, M-L Catalog
- 1911
The Gaertner Scientific Corporation began as a small scientific shop established by William Gaertner in 1896 on Chicago’s Southside. The company, originally known as Wm. Gaertner & Co., manufactured astronomical and…
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Heliostats
- 1911
Top figure is a Foucault heliostat, which reflects the rays of the sun in a horizontal direction. Bottom figure is a two-mirror heliostat, where the second mirror allows the path of the light beam to be thrown in any…
- Creator Of Work Wm. Gaertner & Company
- Subject Scientific apparatus and instruments, Heliostat, Laboratories--Equipment and supplies, Measuring instruments
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Brace Spectrophotometer
- 1911
"The instrument is designed after suggestions from Prof. D. B. Brace, for whom a number of these instruments were built."