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Drying oven by Griffin and Tatlock

Drying oven by Griffin and Tatlock

Drying oven by Griffin and Tatlock

Drying oven by Griffin and Tatlock

Glazed earthenware pneumatic trough

Glazed earthenware pneumatic trough

1930-1950
Meyer's absorption tube for the estimation of sulphur in iron

Meyer's absorption tube for the estimation of sulphur in iron

1929
Electrophorus by Griffin and Tatlock Ltd.

Electrophorus by Griffin and Tatlock Ltd.

1944-1954
Chainomatic balance by Griffin and Tatlock

Chainomatic balance by Griffin and Tatlock

circa 1935
Torsion balance by Griffin and Tatlock no.15700B

Torsion balance by Griffin and Tatlock no.15700B

Beckmann Mercury Thermometer, 1945-1954

Beckmann Mercury Thermometer, 1945-1954

1945-1954
Rotatable coil of copper wire in frame by Griffin and Tatlock

Rotatable coil of copper wire in frame by Griffin and Tatlock

1950-1970
Moving-coil meter

Moving-coil meter

1928-1954
Wimshurst machine by Griffin & Tatlock Ltd.

Wimshurst machine by Griffin & Tatlock Ltd.

1926-1954
Copper hot water funnel, with heating tube

Copper hot water funnel, with heating tube

1926-1954
Moving-coil galvanometer "Microid Adaptable" pattern by Griffin and Tatlock

Moving-coil galvanometer "Microid Adaptable" pattern by Griffin and Tatlock

1932-1954
Standard resistor by Griffin and Tatlock Ltd.

Standard resistor by Griffin and Tatlock Ltd.

1926-1954
Mercury thermometer

Mercury thermometer

1928-1954
Dean and Stark apparatus

Dean and Stark apparatus

"Primus" Blast Pump

"Primus" Blast Pump

1928-1954
50ml Stokes' tube.

50ml Stokes' tube.

1929-1970
Grade 'B' 200ml volumetric flask graduated at one mark.

Grade 'B' 200ml volumetric flask graduated at one mark.

Organ pipe with three manometric capsules

Organ pipe with three manometric capsules

1926-1954
Faraday Ice Pails

Faraday Ice Pails

1926-1954
Quadrant electrometer

Quadrant electrometer

1945-1954
Mercury titre testing thermometer

Mercury titre testing thermometer

1950-1954
50ml Stokes' tube.

50ml Stokes' tube.

1929-1970
Butyrometer

Butyrometer

1950-1965
Stokes' tube

Stokes' tube

1929-1970
50ml Nessler tube

50ml Nessler tube

Spectroscope of type used by Kirchhoff & Bunsen

Spectroscope of type used by Kirchhoff & Bunsen

1880
Model of a gyroscopic motor car

Model of a gyroscopic motor car

1913
Case for Beckmann type differential thermometer (No. 5580) by Griffin & Tatlock Ltd.

Case for Beckmann type differential thermometer (No. 5580) by Griffin & Tatlock Ltd.

1945-1954
Set of 4 mercury in glass thermometers by Griffin and Tatlock; ranges -5 deg C to 405 deg C

Set of 4 mercury in glass thermometers by Griffin and Tatlock; ranges -5 deg C to 405 deg C

1800-1899
Glazed earthenware pneumatic trough 12" dia made by Griffin & Tatlock (1930-1950).

Glazed earthenware pneumatic trough

1930-1950
Microid telemicroscope, for demonstrating different types of telescope and microscope, by Griffin & Tatlock Limited

Microid telemicroscope

1926-1954
GLC soap film gas analysing apparatus, made by Griffin & Tatlock, patents 489117 and 550323 (1934-36).

GLC soap film gas analysing apparatus

1934-36
Two glass lenses, each 2 1/2" diameter, for demonstrating Newton's rings with monochromatic light

Two glasses for demonstrating Newton's rings with monochromatic light

Photodisk. Oscilloscope principal. Cone with celuloid diaphram and horseshoe magnet, on a wood base. mirror missing from centre of celuloid. Manufactured by Griffin and Tatlock Ltd

Oscilloscope manufactured by Griffin and Tatlock Ltd

circa 1940
Glass Twaddle hydrometer by Griffin & Tatlock Limited. Lead weight sealed in red wax and paper scale. In brown cardboard box. Range 0 - 6.

Glass Twaddle hydrometer

Microid hysteresis magnetometer by Griffin & Tatlock Limited (lacks compass box, specimens of magnetic materials, and plugs and spade terminals for connecting leads)

Microid hysteresis magnetometer by Griffin & Tatlock Limited

1944-1954
Potentiometer control, in fitted case, for the Microid seismograph.

Potentiometer for the Microid seismograph

1928
Induction coil by Griffin and Tatlock Ltd.

Induction coil by Griffin and Tatlock Ltd.

1926-1954
Electromagnetic induction apparatus by Griffin & Tatlock Limited (modified: copper brushes replaced by carbon brushes)

Electromagnetic induction apparatus

1926-1954
Hypsometer made by Griffin and Tatlock Ltd., London

Hypsometer made by Griffin and Tatlock Ltd.

1926-1954
Sensitive flame burner, Rayleigh pattern, by Griffin & Tatlock Ltd.

Sensitive flame burner

1926-1954
Condenser, pyrex Liebig condenser, made by Griffin & Tatlock Ltd, London England, 1929-1954. The condenser has the trade mark of the company ('GT' written inside a triangular shape) above the words 'MADE FROM PYREX BRAND GLASS' stamped on the body of the condenser.

Pyrex Liebig condenser

1929-1954
Measuring cylinder with ground glass opening and circular foot; 50mL in 10mL x 1mL graduations. Made in England by Griffin and Tatlock, date of manufacture unknown. Object has the inscriptions "No 233"; "G&T" logo; "BS No 604" and "C 20°C"at top.

Measuring cylinder with ground glass opening and circular foot

Laboratory glassware, "Primus" blast pump, Griffin and Tatlock, England, date of manufacture unknown. The object features the "G&T" logo written in green within a green triangle.

"Primus" blast pump

Laboratory glassware, butyrometer, made by Griffin and Tatlock, London, England, date of manufacture unknown. It has has two elongated bulbs (one sealed and the other stoppered) separated by a graduated tube. The upper, stoppered bulb has the inscription "25" and the lower, closed bulb has the inscriptions "2ml", "20°C" and the barely visible trademark "GT" in the form of a triangle.

Butyrometer

Laboratory glassware, U-tube with ground glass capped ends , maker, place and date of manufacture unknown. The two ends flare away from each other at about 45° to the vertical. One tube has a bulb just before it flares away and both tubes have ground glass cups at each end. One cup is broken. Both flared tubes appear to be capilliary tubes.

U-tube

Microid gas generator by Griffin and Tatlock

Microid gas generator by Griffin and Tatlock

Nitrogen-filled, full immersion mercury thermometer in a cardboard case for a Boys gas calorimeter with a scale reading up to 50 degrees centigrade in tenths of a degree and a magnifying lens for accurate reading of the scale

Nitrogen-filled, full immersion mercury thermometer in a cardboard case for a Boys gas calorimeter

1928-1955