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Page 616 of 699
Shelfmark
Maker
Hilger & Watts Ltd
Title
Watts precision drawing instruments
Description
Under the title Hallmarks of Precision ... Design, Material, Workmanship, information is arranged under these headings: The Material; Compasses; Pen Parts; Adjusting Screews; Needles; Screwdrivers; Cases; Individual Instruments [cat. numbers]; Weights and Dimensions
Shelfmark
Maker
Hilger & Watts Ltd.
Title
Hilger & Watts Pension Scheme
Description
Report of the Actuary - valuation of the pension scheme for Hilger & Watts.
Donated by Ian Young, descendant of Robert Whipple, in 2013.
Shelfmark
Maker
Cambridge Scientific Instrument Company; Ltd.
Title
H. & M. automatic temperature and pressure regulators
Description
The catalogue gives an account of the automatic temperature regulator used to control the temperature in a steam-heated hot-water tank. Information is presented under these headings:- Introduction; Temperature Regulators: The regulating thermostat; The diaphragm chamber and steam valve, The water strainer, The connecting piping, etc.; Pressure Regulators; H. & M. Thermometers
Shelfmark
Maker
Cambridge and Paul Instrument Company; Ltd.
Title
Cambridge remote indicator (Fawcett Patent)
Description
This instrument is designed to convert alternating current into an equivalent direct current for transmission to a distant station through the intermediary of a thermo-pile. Information is presented under these headings:-
[Introduction]; Indication of Voltage at a Distance; Indication of Current at a Distance; Indication of Power at a Distance: Single phase circuit, Three phase circuit; Indication of Power Factor at a Distance; Synchronism; Quick Acting Protective Relay
Shelfmark
Maker
Cambridge and Paul Instrument Company; Ltd.
Title
The Mackenzie-Lewis polygraph
Description
This instrument, based on the one originally invented by Sir James Mackenzie, and further modified by Sir T. Lewis, has been improved to eliminate previous faults of lag and distortion of waveform through inertia of the moving parts, and the large volume of tambours and receiving chambers.
There follows a description of the modifications made to these features to correct these faults, and changes in design to increase accuracy. A detailed description of the instrument, and the way it works, together with specifications follow. Three examples of a printout from the recorder are reproduced at the end.
Shelfmark
Maker
Hilger & Watts Ltd.
Title
Procedure for setting E614 camera into correct adjustment tilt and focus
Description
Instructions are set out in numbered paragraphs (1-11). The last page is devoted to two photographs of the instrument.
Shelfmark
Maker
Cambridge and Paul Instrument Company; Ltd.
Title
Cambridge recording clinical thermometers
Description
The catalogue describes thermometers of the electrical resistance type, consisting of a bulb containing a coil of platinum wire joined by connecting wires to a recorder. It covers these aspects: the thermometer bulb; method of connecting the bulb to the recorder; the thermometer coil and its connections; the recording galvonometer; the recorder and the record; (Recording Clinical Thermometer Outfit Cat. No. 54111)
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
Cambridge Instrument Company; Limited
Title
Cambridge ballistic galvanometer
Description
This instrument is designed primarily for ballistic measurement, or for applications where a long periodic time is required, together with stable zero and high sensitivity .
More detailed information follows in paragraphs: topics covered are:-
Galvanometer movement;
Moving coil;
Lenses;
Zero adjuster;
Specification [including Cat. Nos].
A brief paragraph is devoted to the Cambridge Standard Lamp and Scale Outfit (List 252/1), a suitable accessory to the galvanometer.
Shelfmark
Maker
Cambridge Scientific Instrument Company; Ltd.
Title
Electrical and mechanical pyrometers for locomotive superheaters
Description
The catalogue describes two types of pyrometer, the electrical and the mechanical, for measuring the temperature of steam as it enters the engine cylinder of a locomotive. These are Cat. No. 12711 Electrical Locomotive Pyrometer, complete with indicator, thermo-couple and armoured connecting leads; and Cat. No. 15711 Mechanical Locomotive Pyrometer, complete with indicator, bulb, and steel capillary tube
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