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Compensation Pendulum for a Clock

Catalogue no: 1510
Dewey No: 681.1124 Subject(s): Courtenay Ilbert Archive
Author(s): Adam Reid
Total pages: 5 Illustrations: 3 Language(s): English Publication date: 1810
Editor: Publisher: Philosophical Transactions of the Royal Society
Dimensions: 225mm x 140mm Condition: Fragile, pages loose
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Notes:

Pages extracted from this journal and bound separately between paper covers.

"Fifteen Guineas were this session voted to Mr Adam Reid, of Green's End, Woolwich, for a Compensation Pendulum for a Clock."

Description of a zinc and iron half seconds pendulum, accompanied by an engraving of the features.

Also included in these pages, a description of Mr. Spark's Noctuary, "for ascertaining the hour at night, by an apparatus connected with a common watch".  Illustrated on the same page as the pendulum.  The Silver medal was awarded.

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Search terms: Horological Tools, Nocturnals, Pendulums, Precision Timekeeping, Temperature Compensation
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Inventor of the Contrivance in the Pendulum of a Clock, to prevent the Irregularities of its Motion by Heat and Cold

Catalogue no: 1509
Dewey No: 681.1124 Subject(s): Courtenay Ilbert Archive
Author(s): James Short F.R.S.
Total pages: 7 Illustrations: 0 Language(s): English Publication date: 1752
Editor: Publisher: Philosophical Transactions of the Royal Society
Dimensions: 230mm x 180mm Condition: Reasonable
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Notes:

Pages taken from Royal Society magazine and bound separately between marbled paper.

Short's lecture on the compensated pendulum, "... and it having been often asked, who was the inventor of it, I have therefore thought proper to draw up the following historical account of it: And as this account contains nothing but matters of fact, supported by the best authorities, I hope it will be acceptable to this Society, ..."

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Search terms: Pendulums, Temperature Compensation
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Lecture on the Pendulum-Experiments at Harton Pit

Catalogue no: 1505
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): George Biddell Airy
Total pages: 30 Illustrations: 2 Language(s): English Publication date: 1855
Editor: Publisher: G.B.Airy
Dimensions: 220mm x 145mm Condition: Good, some pages uncut
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Notes:

Full title on front cover as follows;

Lecture on the Pendulum-Experimants at Harton Pit, Delivered in the Central hall, South Shields, October 24th, 1854, by George Biddell Airy Esq., Astronomer Royal, Together with A Letter Containing The Results Of The Experiments.

The subject of this lecture is best described in the introduction;

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Professor Bond's Clock for Registering Astronomical Observations by Electricity

Catalogue no: 1504
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Unknown
Total pages: 4 Illustrations: 0 Language(s): English Publication date: 1851
Editor: Publisher: Chamber's Edinburgh Journal
Dimensions: 250mm x 170mm Condition: Good
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Notes:

Pages extracted from this journal and stapled together between card covers.

Under the title, "A Peep into the Observatory", a full account is given on the subject of Harvard University professor Bond's new device.

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Search terms: Precision Timekeeping
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On the Apsidal Motion of a Freely Suspended Pendulum

Catalogue no: 1503
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): The Rev. Joseph A. Galbraith and the Rev. Samuel Haughton
Total pages: 6 Illustrations: 0 Language(s): English Publication date: 1851
Editor: Publisher: Philosophical Magazine and Journal
Dimensions: 215mm x 130mm Condition: Reasonable
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Notes:

A brief scientific report on this subject stemming from experiments with Foucault pendulums.

The authors write from Trinity College, Dublin

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The Resistance of the Air, determined from Captain Kater's Experiments on the Pendulum

Catalogue no: 1502
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Captain Kater, Unknown
Total pages: 15 Illustrations: 0 Language(s): English Publication date: 1823
Editor: Publisher: Astronomical and Nautical Collections
Dimensions: 210mm x 130mm Condition: Good
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Observations for ascertaining the length of the Pendulum at Madras in the East Indies,... with the conclusions drawn from the same.
Notes:

Report on the scientific studies carried out on this subject by Captain Kater.

First sentences reveal the thrust of the research.

"The effect of resistances of various kinds on the vibrations of the pendulum is become a subject of increased importance, from its influence on the determination of a standard measure: for although the effect of these resistances on the time may be wholly inconsiderable, it is by no means superfluous to prove, by demonstrative evidence that they are actually insensible."

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Observations for ascertaining the length of the Pendulum at Madras in the East Indies,... with the conclusions drawn from the same.

Catalogue no: 1501
Dewey No: 681.1124 Subject(s): Courtenay Ilbert Archive
Author(s): John Goldingham
Total pages: 43 Illustrations: 1 Language(s): English Publication date: 1822
Editor: Publisher: Unknown
Dimensions: 270mm x 210mm Condition: Good, first page slightly dirty
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Notes:

The author describes the experiments carried out using a regulator timepiece with grid-iron pendulum by Haswell, together with apparatus designed for such experiments by Captain Kater.

Detailed descriptions given as to how the clock and apparatus were set up together with an excellent engraving showing the clock with the experiments taking place.

Thirty pages of charts giving precise details of the performance of the clock over the period of a month, readings of barometric pressure, temperature and humidity, and conclusions reached.

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Search terms: Pendulums, Precision Timekeeping
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Pendulum

Catalogue no: 1500
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Unknown
Total pages: 6 Illustrations: 1 Language(s): English Publication date: 1812
Editor: Publisher: Pantologia
Dimensions: 260mm x 170mm Condition: Reasonable
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Notes:

Entry in the Encyclopedia "Pantologia".

Covers in some detail the theory and construction of pendulums, including compensation pendulums.

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Mr H. Ward's Compensation Pendulum

Catalogue no: 1499
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Henry Ward
Total pages: 12 Illustrations: 1 Language(s): English Publication date: 1808
Editor: Publisher: Society for the Encouragement of Arts, Manufactures and Commerce
Dimensions: 210mm x 130mm Condition: Good
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Notes:

Full description and illustration (6 engravings) of a  form of zinc and iron compensation pendulum, for which the author received the Silver Medal of the Society for the year 1808.

Ward claims the advantage of his pendulum lies in the simplicity of its design and manufacture.

Final pages are a record with charts of the performance of the clock "...determined from observations of the Sun's Transit over the Meridian."

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Search terms: Pendulums, Precision Timekeeping
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Specification of the Patent granted to Joseph Manton, of Davies Street, Berkeley Square, London, Gun-maker; for improved Time-keepers.

Catalogue no: 1498
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): Joseph Manton
Total pages: 4 Illustrations: 1 Language(s): English Publication date: 1807
Editor: Publisher: Unknown
Dimensions: 215mm x 140mm Condition: Reasonable
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Notes:

Description and illustration of a clock kept and wound in a vacuum chamber.

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Search terms: Horological Patents
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