Shelfmark

Ogi.4

Maker

Ogilvy & Co.

Title

[Any of the following Leitz catalogues will be sent post free on application]

Description

Shelfmark

Lei.42

Maker

E. Leitz (London) Ltd.

Title

Leitz- Microscopes for Medical and General Biological Work

Description

Shelfmark

Pye.63

Maker

W. G. Pye & Co. Ltd.

Title

Two-Dimensional Measuring Microscope

Description

Pictures and short descriptions of the technical specifications of instruments.

Shelfmark

Tin.54

Maker

H. Tinsley & Co.

Title

Phase-Shifting Transformers

Description

Includes much detail about phase-shifting transformers.

Shelfmark

Tin.26

Maker

H. Tinsley & Co.

Title

Non-Inductive Resistance Boxes

Description

Shelfmark

Tin.50

Maker

H. Tinsley & Co.

Title

Inductance and Capacity Testing Bridge

Description

Includes sections on Self Inductance testing, Mutual Inductance testing and Low Resistance measurement.

Shelfmark

Csi.C426

Maker

Cambridge Instrument Company

Title

Cambridge Electronic Recorder by the Cambridge Instrument Company

Description

Item of sales literature bound within black hardback volume: ‘CAMBRIDGE INSTRUMENT CO. CATALOGUES 227-433’

Shelfmark

you.49

Maker

Collimator Cases Limited

Title

Issue of 12,500 5% Cumulative Preference Shares of £1, each fully paid

Description

Application form for cumulative preference shares (not filled in).
Donated by Ian Young, descendant of Robert Whipple, in 2013.

Shelfmark

you.8

Maker

E. R. Watts & Son Ltd

Title

Watts Survey

Description

Company newsletter dealing with news from inside the company and that which relates to its produce. Includes section on ‘Aspects of the History of Instrument Making and its Future’.

Donated by Ian Young, descendant of Robert Whipple, in 2013.

Shelfmark

Iee.1

Maker

Institution of Electrical Engineers

Title

The precise measurement of capacitance

Description

This Institution of Electrical Engineers’ monograph proposes a method, designed for industrial application, of conveniently meauring capacitance with a precision approaching that of the National Physical Laboratory. Information is presented under these headings:- Summary; (1) Introduction; (2) Basic Theory of the Wien Bridge; (3) Corrections; (4) Computation of Corrections; (5) Consistency of Results; (6) Correlation of Wien-Bridge Results with N.P.L. Calibrations (7) Proposals for a Simplified Wien Bridge Designed for the Calibration at 1 KC/S of a Fixed Capacitor Standard of Nominal Value 0.1 muF; (8) Conclusion; (9) Acknowledgements; (10) Bibliography; (11) Appendices