UK and Ireland Archives - Page 37 of 93

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Cased pocket compass and sundial by Watkins Bristol, England of the 1820’s. Signed on the compass as well as the sundial. The compass has a diameter of 6,5 cm. The compass rose is very detailed and he metal is coloured blue. To set the compass a click-system is installed. When clicked the arrow will be pushed a little and is set to the right direction. The sundial is set by two pinholes and can be clipped upwards. Case dimensions: 7,8 Read More...

10 Nov

Richardson’s Sphygmograph

By Fletcher

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This device is a modification of the Dudgeon, but with a 2 inch rod which extends and has an adjustable weight to adjust the pressure rather than a screw spring. The clockwork mechanism turns the smoked paper on a rod drive. the rod has a series of plates to mark the paper and provide a scale of height. See N. H. Naqvi and M. D. Blaufox page 110. Case lid distressed as shown-Label for retailer ‘Medicinisches Waarenhaus, Berlin’-most likely manufactured Read More...

03 Nov

Early 19th c. ‘Improved telescope’ by Richardson.

By Scientific Inspirations

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This telescope has a large pancratic eye-piece tube (variable power) and is signed, ‘Richardson, London’, and also engraved with a letter ‘A’ on the eye-piece and additionally engraved on the first draw, ‘Adjustment for Greater Magnification power, for Day or Night’. Also around the back collar, ‘Improved Telescope’. Quite a large two draw telescope (3 draw if you include the pancratic draw) measuring 45.5″ fully extended and 15.5″ closed. It has a ray shade with a removable end cap and sliders at Read More...

03 Nov

Small spyglass telescope, early 19th c.

By Scientific Inspirations

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An early 19th century single draw, two power eye-piece spyglass. The eye-piece has a small lever with markings ‘1 and 2’ which changes the magnification approximately 4 x to 6 x power. It gives a clear image but limited field of view ( not much different to a small set of opera glasses). Opened, it measures 5″ (13 cms) and 3.5″ (9 cms) when closed with an achromat lens of 1″ diameter. It has a screw-on lens cap. Read More...

02 Nov

W F Stanley plain theodolite

By Victor Burness

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The Theodolite is contained within its original mahogany box. The serial number is 9225 suggesting a date of 1892. It retains its original spider web on the diaphragm in the telescope. During my apprenticeship in the 1960s at W F Stanley the senior instrument makers spoke of repairing theodolites and obtaining the spider web by knocking a spider off the edge of the bench and gathering it on a V-shaped prong, then applying the web to the diaphragm with Read More...

01 Nov

3 draw spotting telescope – Dollond.

By Scientific Inspirations

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Circa 1920, signed on the first draw, ‘Dollond, London, x25’. The telescope measures 30″ fully open and 10.25″ when closed with an objective lens of just over 1.5″. The barrel, ray shade, ends caps and shoulder strap are finished in thick, dark tan leather. The draws pull out smoothly and have no dents. The lenses are clear and damage free. The optics are excellent and pin sharp when viewing; (magnification 20 x). Read More...

01 Nov

~EXCELLENT W. JONES TRANSITIONAL SIMPLE MICROSCOPE~

By ScientificaOpticae

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An excellent and complete Jones-type simple botanical microscope of the popular Adams/Jones type with modifications. As you know, when Jones bought up the Adams publications, Adams had an early design for a simple field microscope that was then produced by William Jones. Originally on an oval ebony base with a cumbersome pin to the pillar and three lenses that flipped in and out of the optical axis, the model was unchanged for 20 years. We then see a heavier brass Read More...

31 Oct

~FINE SINGLE ARM CIRCULAR PROTRACTOR-W. & S. JONES~

By ScientificaOpticae

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A fine cased six inch diameter, engine divided, circular single arm protractor by W. & S. Jones with vernier and pin. 360 degrees in half degree increments. Vernier reads to a tenth of a degree. Finely engraved. Nice signature. c.1800. Rarely if ever used. Near perfect lacquer. In green baise lined mahogany case with booth hooks and eyes present(7 x 6 1/2 inches, 17.5 x 16 cm.) Read More...

30 Oct

~EXCEPTIONAL SWIFT MICROSCOPE LAMP-RARE COMBINATION~

By ScientificaOpticae

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An exceptionally rare and fine example of a James Swift microscope lamp. Signed on the ceramic chimney shade “James Swift, 48 University St., London, Registered” (earliest address), this lamp stands 12 inches tall on a round brass base. The golden lacquer is virtually intact although the accessory HAS been used. It boasts a combination of a plano/concave BLUE glass bullseye, a BLUE glass burner chimney and the earliest chocolate BROWN chimney shade (1855). Fully adjustable both vertically and horizontally Read More...

27 Oct

Medical Coil by Frederick Parkes, Medical Electrician

By Fletcher

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A good medical galvanic coil with brass strength adjuster and associated pamphlet, in good condition noting minor losses to covering of coil, and loss of end knob to strength adjuster Parkes worked at 5 Bramble Street Derby. Read More...

27 Oct

Two Brass Protractors

By Fletcher

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A large Brass Protractor by W. Elliott, 268 High Holborn (1835-1849) and a smaller unsigned decorative late eighteenth century protractor-£120 Both in good condition noting v. minor bruising to edge of Elliott instrument-£220 Read More...

27 Oct

Thomas Dunn’s ‘The Circular Time Table’ 1818

By Fletcher

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An example of Thomas Dunn’s Circular Time table:’for showing at one view the number of Days from any given date to all other dates’-constructed and sold by Thomas Dunn Accountant-Bank of Scotland and Glasgow-Author of ‘Tables of Simple Interest-computed decimally-Entered at Stationers Hall 1st December 1818 Printed on tin-some minor losees, stains, and scratches as shown-Brass central knob comes with photocopy of “Directions for using the Circular Interest Table together with a Description of the Circular Time Table” by Thomas Dunn,1818 Read More...