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Page 686 of 698
Shelfmark
Maker
Cambridge Instrument Co. Ltd.
Title
Lindemann electrometer
Description
This instrument was designed to be used in making photoelectric measurements of light in astronomical work; and may be used also in determining radioactive emission in an ionisation chamber. A detailed description in paragraph form covers these topics:-
Construction, and other possible uses;
Design;
Function and operation;
Possible accessories
Specifications (including cat.nos.) for the instrument and five
accessories.
Shelfmark
Maker
Hilger & Watts Ltd.
Title
Watts Microptic Horizontal Measuring Machine
Description
Pictures and short descriptions of the technical specifications of instruments.
Shelfmark
Maker
Cambridge Instrument Company; Limited
Title
Cambridge Unipivot galvanometers for A.C. measurements
Description
The intrument is designed to measure small alternating currents without introducing into the circuit any appreciable disturbance due to capacitance or inductance.
An opening paragraph gives a brief general description of it, then detailed information is presented under these headings:-
Versatile galvanometer; A.C. range box; Thermal milliammeter,
single range;
Multirange instruments; Multirange thermal milliammeter;
Multirange thermal voltmeter; Radio frequency milliammeter,
multirange;
Rectifier millivoltmeter; Rectifier voltmeter; Rectifier
microammeter;
Vacuo-junctions; Vacuo-junctions, U.H.F. pattern;
Ranged vacuo-junctions. Approximate sensitivity data
[tables]
Shelfmark
Maker
Cambridge Instrument Co. Ltd.
Title
Milliammeters, ammeters (electrodynamic type)
Description
The meters are introduced as having high electromagnetic efficiency, resulting from the use of a magnetic system containing high grade nickel-iron alloy. Further details about the instruments appear under the heading: General. Then each one appears separately together with a brief paragraph of description:-
Dynamometer Milliammeter; [illustration]
Milliammeters;
Specifications:
Ranges Milliamperes, Resistance approx. ohms, Cat. No.;
Dynamometer Ammeter; [illustration]
Ammeters;
Specifications:
Ranges Amps, Burden approx V.A., Cat No;
Dynamometer Voltmeter; [illustration]
Voltmeters;
Specifications:
Range Volts, Resistance ohms/volt., Cat. No.
Multi-range Wattmeter [illustration]
Wattmeters;
Specifications:
Ranges: Volts, Amperes, Multirange, Cat. No
Wattmeter for Meter Testing [illustration]
Wattmeters for meter testing; Wattmeters for iron losstesting;
Specifications:
Rated Voltage, Rated Current, Watt Ranges, Scale, Cat. No.
A.C. Test Set [illustration]
A.C. Test Sets; Current Transformer (Multirange); Series
Resistance Multipliers;
Specifications:
Rated Voltage, Rated Current, Watt Ranges, Scale, Cat. No.
Reflecting Dynamometer Wattmeter [illustration]
Cambridge reflecting dynamometer wattmeter;
Specifications:
Watts full scale, Range box ranges, Period undamped (secs),
Accuracy of calibration, Cat. No.
Range Box [illustration]
Cambridge reflecting dynamometer universal pattern;
Specifications:
Watt ranges, Ampere ranges full scale, Volt ranges full scale,
Period undamped, Accuracy of calibration, Cat. No.
Shelfmark
Maker
Philip Harris Limited
Title
Wimshurst machine with perspex plates [facsimile]
Description
Under the heading Instructions for Assembly, a detailed description covers these points:-
Cleaning all metal parts;
Positioning the plates;
The brushes;
Positioning the discharging knobs;
Connecting the Leyden jars;
The spark;
Final adjustments
Under the heading Notes several cautionary and helpful suggestions are added to ensure the efficient working of the machine.
Shelfmark
Maker
Cambridge Instrument Co. Ltd.
Title
Cambridge Flik galvanometer; and Cambridge lamp and scale outfit
Description
Presented as an instrument designed to give high sensitivity and rapid response, it is particularly suited to photographic recording of rapidly changing electrical phenomena. A concise description is followed by Approximate Performance Data [table], and specification, including cat. nos.
On the second page, a brief account follows of the Lamp and Scale Outfit, an accessory for use with the galvanometer, cat. nos. and specifications are given.
Shelfmark
Maker
J. E. Hough; Ltd.
Title
The Edison Bell “Sympathetic” chromic needle and grip [facsimile]
Description
Under the heading: Control your gramophone a revelation and a revolution, the needle and grip are described in essay form, and covers these topics:-
Drawbacks of gramophone needles currently on the market;
Therapeutic use of music;
Necessity of adjusting equipment for best results;
Superiority of the new chromic needle over steel needles;
How the “Sympathetic” differs from all other needles;
Further uses for effects produced by this needle;
Shelfmark
Maker
Cambridge Scientific Instrument Company
Title
Electrometers by The Cambridge Scientific Instrument Company
Description
Item of sales literature bound within black hardback volume: ‘CAMBRIDGE INSTRUMENT CO. CATALOGUES 5-18’
Shelfmark
Maker
C. Baker
Title
Microscope Materials
Description
Catalogue of various microscope materials and associated scientific equipment, with illustrations and prices.
Includes books on the microscope and materials for collecting specimens.
You are on Page 686 of 698
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