UK and Ireland Archives - Page 2 of 108

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Offered for sale is a fully working example of the rare Watson-Conrady Vertical Illuminator. This is a top quality vertical illuminator in excellent working condition and will date to the 1930s – see Watson catalogue entry as shown. It’s the fully specified version, with counter-balance weight, internal reflector and two internal adjustable irises. This equipment has RMS fit to the optical tube and comes with a working 6V bulb, power cable which is terminated with a small Bulgin 3-pin. Read More...

11 May

SOLD – Vintage Bellingham & Stanley Abbe Refractometer – Case/Instructions/Accessories

By Arcboutant Scientific

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Offered for sale is a vintage cased refractometer by Bellingham & Stanley dating to around the 1950s, or thereabouts. An Abbe refractometer is a scientific instrument that’s used to measure the refractive index of a liquid substance. The refractive index tells you how much light bends (or “refracts”) as it passes through that substance. This bending of light depends on the material’s density and composition. This example is in great cosmetic condition and will provide an excellent display piece, or potentially Read More...

11 May

Antique Four Draw Brass & Wooden Telescope – Victorian Period – Unsigned

By Arcboutant Scientific

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A compact four draw brass telescope with a small wooden body, unsigned, in excellent working order and damage free (no cracks, chips etc). The telescope would appear to be late 19th century and measures about 20 inches when fully extended and just over 6 inches when collapsed. There’s a brass cap for the objective lens end and a cover-plate for the eyepiece to prevent dust ingress. So you have to manually move the eyepiece dust shield out of the way to Read More...

11 May

Antique Stereoscope Stereo Viewer by Makers A H Baird of Edinburgh – circa 1910

By Arcboutant Scientific

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Offered for sale is a Stereoscope/ Stereo Viewer by A H Baird of Edinburgh in good condition for its age. It looks like the handle has been re-attached/glued at some point in the past. Good general condition and should be perfectly usable with the right size of stereo photos. These stereoscopes give the illusion of a 3D image when used with the correct type of stereo cards. The item will be weli wrapped and shipped by Royal Mail. Thanks for looking. Read More...

11 May

Antique John Ednie Edinburgh – Induction Coil Physics Electrical Spark Apparatus

By Arcboutant Scientific

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Offered for sale is an antique induction coil electrical apparatus manufactured by John Ednie of Edinburgh University, Scotland, probably dating to the late 19th or early 20th century. This listing is for a single example, so when ordering please state which one you require: – No 26 – as shown– No 7 as shown Induction coils were widely used in physics laboratories and educational settings in order to demonstrate inter alia electromagnetic induction for experimental/teaching purposes. This example is mounted on mahogany folding Read More...

11 May

Antique Clockwork Electrical Pulse Apparatus by Cambridge Scientific

By Arcboutant Scientific

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Offered for sale is an interesting clockwork mechanism that looks to be set up to produce timed electrical pulses – use/application is unknown and the item is untested. The clockwork movement is from the USA and branded as follows: Seth Thomas, Thomaston, Connecticut Note: Seth Thomas (1785–1859) was a pioneering American clockmaker who established a massive manufacturing empire in Plymouth Hollow, Connecticut, which was renamed Thomaston in his honor in 1875. Founded in 1813, the company became a leading U.S. manufacturer of high-quality, affordable clocks, including Read More...

11 May

SOLD – Antique Induction Coil Physics Electrical Apparatus – Educational – Steampunk

By Arcboutant Scientific

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Offered for sale is a set of antique induction coil electrical apparatus probably dating to the late 19th or early 20th century. Induction coils were widely used in physics laboratories and educational settings in order to demonstrate inter alia electromagnetic induction for experimental/teaching purposes. This apparatus is mounted on a mahogany base and features: • moveable induction coils • brass electrical terminals • sliding scale with measurements Such instruments were commonly used in scientific instruction and laboratory demonstrations during the early development of electrical Read More...

11 May

SOLD – Microscope accessories: glass trough (#3).

By Scientific Inspirations

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SOLD – Length 3 inches. Height 1.5 inches. Depth 1/2 inch. Post will be £5.80 U.K. £25 U.S.A. Additional items – post free. Read More...

11 May

SOLD – Microscope accessories: glass trough.

By Scientific Inspirations

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SOLD – Length 2.5 inches. Height 2 inches. Depth just under 1/2 inch. Post will be £5.80 U.K. £25 U.S.A. Additional items – post free. Read More...

11 May

SOLD – Microscope accessories: glass trough.

By Scientific Inspirations

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SOLD – Length 3 inches. Height 2 inches. Depth 1/2 inch. Post will be £5.80 U.K. £25 U.S.A. Additional items – post free. Read More...

11 May

Decagonal marine telescope.

By Scientific Inspirations

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Unsigned, circa 1800, measuring 25.5 inches ( 65 cm ) when closed with a non achromatic main lens of 27 mm ( just over an inch ) in diameter. There are sliders to both ends of the telescope. The lenses are damage free; the mahogany barrel free of cracks. Lacquer is still intact. The single brass draw tube is fully retractable and is constructed in three segments. A good, clean example. It comes with a later wooden display stand. Read More...

10 May

SOLD – Small brass compass and case.

By Scientific Inspirations

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SOLD – A small 1.75 inch ( 44 mm) brass pocket compass with a card dial centrally pivoted. It has a small lever to the side which holds the dial when depressed. The compass is made to stay in its case as there is no ring pull and the inside base is blank. Read More...