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Shelfmark
Maker
Cambridge Instrument Co. Ltd.
Title
Cambridge short period galvanometer; and Cambridge lamp and scale outfit
Description
This instrument was designed primarily as a null indicator for precision bridges and Vernier potentiometers, but also for use as a deflectional instrument in applications where rapid changes need to be observed accurately.
A fairly detailed account in paragraph form covers these topics:-
Set-up and use of the instrument;
Components and construction;
Suitable accessories;
Specifications:-
Short Period Galvanometer Specifications: Cat. No., Coil
resistance, Sensitivity in mm./A at 1 metre, Period (undamped)
in seconds, External resistance for critical damping, Net
weight, Overall height, Diam. of base, Diam. of tower,
The Lamp and Scale Outfit is intended for use with the Short Period galvanometer and other reflecting galvanometers: it comprises a lamp attached to a stand at the top of which is mounted a scale.
Iinformation is given in paragraph form, covering these topics:
The lantern: how to fit it, how it works;
The scale: its mounting, and operation;
Transformers;
The stand, and alternative fittings;
Specifications:
Description and Cat. No., Overall length of scale, Diameter of
base, Max. height, and Net weight of each model: one for
mains operation (41903), the other for use with a battery
(41901)
Shelfmark
Maker
Hilger & Watts Ltd.
Title
D400/460 Czerny-Turner Grating Spectrometers Laboratory Assembly & Test Instructions
Description
The title page consists of the title (see above), followed by general instructions to equipment users, written in a typed letter which is signed (illegible), and dated 9/9/65.
Under the heading: D400/460 Laboratory Assembly & Adjustment Information is a subheading Apparatus Required; followed by these paragraphs:- A. Parts from D400/460 to be set aside as permanent tools B. H & W Stocked Items; C. Tools to be obtained or made, with an accompanying diagram.
Further information is set out under: Setting the Grating Cell Screws; Mounting the Spectrometer Mirrors; Mechanical Adjustment; accompanied by a diagram, a graph, and incidental, sketched tables and graphs.
Following the main text is a page headed: Test Certificate; then tables: Table 2: Resolution. 1200.2/mm Grating D400/D460; Table 3. Ambient Stray Light; Table 4. Insrumental Stray Light.
The last page is headed : General Inspection, then: Examiner; Date; Approved; Head of I.T.R.; Date.
Shelfmark
Maker
Cambridge Instrument Company; Limited
Title
Indicating pneumatic temperature controller
Description
Information is set out under these headings:-
Indicating pneumatic temperature controller
Construction and operation
Specification and mounting
Associated instruments are included, with their list numbers. No prices are given.
Shelfmark
Maker
[Hilger & Watts Ltd.]
Title
F1590 etc. A.C. Thermopile Outfit for use with Barfit Monochromators. Laboratory Instructions
Description
After a brief list of components, there is a short introduction under the heading: User’s Instruction Manuals..
Information is arranged under these headings:-
Wiring of F1590;
Chopper FA.177;
Thermopile Unit F.1590;
Assembly.
Shelfmark
Maker
Design Electronics
Title
Choosing a soft solder
Description
This is an article, cut from the magazine Design Electronics, on solders. Information is given under these headings;- Composition; Addition of Antimony; Addition of Copper; Addition of Silver; Impurities in Soft Solder; Fluxes; Synchro Testing; Solders and Fluxes for Special Alloys: Aluminium and its alloys, Beryllium copper and bronzes, Iron and steel (other than stainless), Nuclear radiation, Tin; Solder Preforms; Environmental Effects on Solder: High temperature operation, Low temperature operation, Humidity and mould growth
Shelfmark
Maker
National Maritime Museum
Title
John Harrison and his Timekeepers
Description
By Lieutenant Commander Rupert T. Gould. Reprinted, originally written in 1935. Includes insert of 8 plates with black and white photographs and letter, dated Feb 1972 about a subsequent reprint.
Donated by Ian Young, descendant of Robert Whipple, in 2013.
Shelfmark
Maker
Aeronautical & General Instruments Ltd.
Title
A total precision engineering capability
Description
This brief company prospectus begins with an overview of the expertise and services A.G.I. offers, then provides more detailed information under these headings:
Some examples of A.G.I. capability;
Services;
Plant
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
Electrical instruments specifications: O Inductometers & capacitors
Description
Brief but significant details of each of the instruments shown are given under the following headings:-
Standard mutual inductometer
Carey Foster auxiliary box
Low inductance ration box
Self-inductance standards
Mutual inductance standards
Decade capacitors
Specifications are provided, but no prices are given.
Shelfmark
Maker
Cooke; Troughton & Simms Ltd.
Title
Engineer’s Level, S400 series
Description
Description of differences between the S400 engineer’s level and the S300 surveyor’s level on which it is modelled (see cts.33)
Introduction; specifications; labelled illustrations of the engineer’s level; list of extras, with illustrations.
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