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23429 Los(e)/Seite
A 19th century ivory mounted ebonised desk top thermometer The vertical ivory scale signed Chamberlain & Son, 203 High Holborn, London and standing on an architectural moulded plinth base. 51.5 cms high. CONDITION REPORTS: Generally in good condition, expected wear, some losses to mouldings, some rubbing, shrinkage cracks.
A fine George III mahogany bayonet-tube mercury stick barometer with hygrometer and Fahrenheit scale thermometer, Samuel Toulmin, London, circa 1775, The caddy moulded case with open triangular pediment above hygrometer with independent adjustment for the hygrometer beard pointer via a brass turn-screw set beneath, over inset silvered vernier scale with curved lower angles and calibrated in barometric inches to the right hand margin opposing weather observations to the left, the upper margin signed Toulmin Strand London, the trunk inset with silvered brass break-arch Fahrenheit scale mercury tube thermometer with domed brass protective cover to the bulb and decorative engraved border, the rounded base with circular moulded cistern cover and brass level adjustment screw to underside, 109cm (43ins) high. Samuel Toulmin is recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as working from Strand, London 1757-83.
A mahogany mercury stick barometer with hygrometer and mercury Fahrenheit scale thermometer, The register bearing signature for James Gatty, London, late 18th century and later, The boxwood edged case with open triangular pediment above hygrometer set behind convex glazed cast brass bezel over rectangular glazed door with curved lower angles enclosing conforming silvered vernier scale calibrated in barometric inches to the right hand margin opposing weather observations to the left, the upper margin bearing engraved signature James, Gatty, London, the trunk with further long rectangular glazed door enclosing mercury tube Fahrenheit scale thermometer with brass cage protection to the bulb and wheatear engraved arched border enclosing delicate leafy scrolls to upper margin, the rounded base with ring-turned domed cistern cover and level adjustment screw to underside, 109cm (43ins) high
A rosewood and mahogany mercury tube stick barometer, C.A. Canti, London, circa 1840, The arched case with canted surround to the applied engraved ivory vernier scale calibrated in barometric inches and with the usual weather observations opposing mercury Fahrenheit and Reaumur scale thermometer, the upper left margin inscribed C.A. CANTI, 30 HIGH HOLBORN, the waisted trunk with visible tube above rounded base applied with a half-ovoid cistern cover with moulded cylindrical upstand and narrow band to waist, the underside with brass level adjustment screw, 91.5cm (36ins) high. C.A. Canti is recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as working from 30 High Holborn, London, circa 1830-60.
A rare Victorian cast iron mounted oak outdoor mercury stick barometer, Chadburn Brothers, Sheffield for E.H. Straw, London, mid 19th century, The arch-glazed canted silvered brass double vernier scale calibrated in barometric inches and with the usual weather observations labelled YESTERY 9. A.M. and TODAY 9. A.M. to lower margin, the arch engraved with retailers signature E.H. STRAW, OPTICIAN, 69 LEMAN ST., WHITECHAPEL set within moulded surround to the heavy cast iron arched fascia incorporating relief trade label CHADBURN BROS, OPTICIANS & C., SHEFFIELD to lower rail over vernier adjustment screws, conforming arch-glazed mercury tube Fahrenheit and Reaumur scale thermometer with spiral bulb (damaged) and moulded circular cistern panel decorated with armorial device, the plate fitted via brass capped studs onto a moulded oak back panel, 100cm (39.5ins) high. Chadburn Brothers are recorded in Banfield, Edwin, BAROMETER MAKERS AND RETAILERS 1660-1900 as notable makers working from Albion Works, 26 Nursery Road, Sheffield and 71 Lord Street, Liverpool circa 1837-75. E.H. Straw do not appear to be recorded in the usual sources.
A George III inlaid mahogany mercury wheel barometer, Francis Saltery and Company, London, early 19th century, With 8 inch circular radial motif centre-engraved circular silvered register signed Fran.s Saltery & Co. No. 94, Holborn Hill, LONDON within concentric scale calibrated in barometric inches and with the usual observations to the outer track, with blued steel pointer set behind fixed cast brass glazed bezel fitted with brass recording pointer to centre, beneath arch-glazed Fahrenheit scale alcohol tube thermometer with geometric band decoration around bulb and floral spray within the arch, the parquetry chevron edged shaped case with open triangular pediment above circular fan cartouche panel to frieze and conforming ovoid panels flanking dial and further circular motif to the rounded base, 96.5cm (38ins) high. Francis Saltery (and Company) are recorded in Banfield, Edwin BAROMETER MAKERS & RETAILERS 1660-1900 as working from 94 Holborn Hill, London circa 1800-30.
A Regency inlaid mahogany mercury wheel barometer, Unsigned, early 19th century, The 8 inch circular silvered register inscribed Warranted to centre within scale calibrated in barometric inches and with the usual weather observations set behind glazed brass bezel fitted with brass recording pointer, the ebony and box line edged case with open triangular pediment above rosette and arched alcohol tube Fahrenheit scale thermometer flanked by conch shell inlay to trunk, the rounded base with conforming rosette, 96.5cm (38ins) high
A Regency inlaid mahogany mercury wheel barometer, Joseph Aprile, Sudbury, early 19th century, The 8 inch circular silvered register signed Josh Aprile, Sudbury, Warranted to centre within scale calibrated in barometric inches and with the usual weather observations set behind glazed brass bezel fitted with brass recording pointer, the ebony and box line edged case with open triangular pediment above rosette and arched alcohol tube Fahrenheit scale thermometer flanked by conch shell inlay to trunk, the rounded base with conforming rosette, 96.5cm (38ins) high. Joseph Aprile is recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as a clock and watch maker working in Sudbury circa 1825-45.
A Victorian rosewood cased sympiesometer, Crichton Brothers, London, circa 1875. The rectangular silvered scale applied with siphon tube with open bulb to the left and sealed bulb to the right filled with pink stained fluid, the left hand margin with mercury tube Fahrenheit scale thermometer above engraved signature Crichton Bros., 11 Billiter St. London, opposing right hand side with engraved vertical scale for degrees Fahrenheit ranging between 20 and 120 set behind slide with expanded scale annotated for barometric inches and with the usual weather observations, the upper edge of the slide fitted with angled brass pointer for calibration against the temperature scale behind and with adjustment by rack and pinion to a knurled brass knob fitted to the right hand side of the case, the lower edge with recessed circular level recording disc labelled REGISTER and engraved with barometric scale visible through an arched aperture in the plate and manually adjusted via projecting rim to the base, the case with shaped upstand to the cavetto moulded cornice above moulded surround to the bevel glazed front aperture, (with restoration), 55cm (21.75ins) high. Crichton Brothers are recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as specialist makers of sympiesometers working from 11 Billiter Street, London, 1871-7. The sympiesometer was invented by Alexander Adie of Edinburgh in 1818 and is essentially an improved version of Robert Hookes thermobarometer which was subject of a paper presented to the Royal Society in 1668. The instrument works by having a syphon tube filled with liquid open to the air at one end and with trapped gas at the other (sulphuric acid and hydrogen were used in later sympiesometers). As barometric pressure increases the liquid will be forced down the tube causing the gas to be compressed, resulting in a change in level in the tube. Unfortunately the volume of the gas changes with temperature so before a reliable reading can be taken the instrument would first need to be calibrated by adjusting the position of the movable barometer scale in relation to the temperature scale behind to reflect the reading provided by the thermometer. The sympiesometer was conceived as an alternative to the mercury marine barometer as it was smaller and believed to be less susceptible to the motion of a vessel at sea.
A very rare Victorian rosewood mercury Patent Compensating Portable Barometer or mercury sympiesometer, William Harris and Son, London, mid 19th century, The rectangular silvered scale applied with short U-shaped mercury tube terminating with open bulb to left hand column opposing sealed bulb to the right, the centre with mercury tube Fahrenheit and Reaumer scale thermometer and with engraved inscription Harriss Patent Compensating Portable Barometer, the upper margin signed WILL.M HARRIS & SON, 50 High Holborn, London, above right hand side with engraved vertical scale for degrees Fahrenheit ranging between 20 and 120 set behind slide with compressed vernier scale annotated for barometric inches and with the usual weather observations, the upper edge of the slide fitted with angled steel pointer for calibration against the temperature scale behind and with adjustment by rack and pinion to a knurled brass knob fitted to the right hand side of the case, the vernier with independent adjustment via friction slide to a smaller secondary brass knob to the exterior, the lower edge with engraved serial number 284 over recessed circular level recording disc engraved with barometric scale visible through a semi-circular aperture in the plate and manually adjusted via projecting rim to the base, the case with shaped upstand to the cavetto moulded cornice above moulded surround to the glazed front aperture, 33cm (13ins) high. Many makers with the surname Harris have worked in the London instrument trade since the middle of the 17th century, however this branch of the family can be traced back to Richard Harris who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from several addresses in London circa 1710-1810. His son, William, was apprenticed to the clockmaker Joseph Robinson and gained his freedom of the Clockmakers Company in 1796. William set up business first at 47 High Holborn, London in 1805 before moving to a couple of doors down to number 50 in 1815. The business became William Harris & Company in around 1813 before being renamed William Harris & Son in 1841 when William Harris is believed to have taken in his son, Richard Joshua, into partnership. The business is recorded working from 50 High Holborn until around 1855. The design of current lot was described in the 1851 publication by Adolphus Oliver Harris A Treatise on the Patent Compensation Portable Barometer and was developed by William Harris and Son as an improvement on the sympiesometer invented by Alexander Adie of Edinburgh in 1818 (which in turn was essentially an improved version of Robert Hookes thermobarometer which was subject of a paper presented to the Royal Society in 1668). Both instruments essentially work in the same way with a syphon tube filled with liquid open to the air at one end and with trapped gas at the other (sulphuric acid and hydrogen were used in the sympiesometer). As barometric pressure increases the liquid will be forced down the tube causing the gas to be compressed, resulting in a change in level in the tube. Unfortunately the volume of the gas changes with temperature so before a reliable reading can be taken the instrument would first need to be calibrated by adjusting the position of the movable barometer scale in relation to the temperature scale behind to reflect the reading provided by the thermometer. The sympiesometer was conceived as an alternative to the mercury marine barometer as it was smaller and less susceptible to the motion of a vessel at sea.
A French novelty brass and copper combination timepiece, aneroid barometer, thermometer and compass in the form of a lantern, Unsigned, late 19th century, The small circular eight-day single train movement with replaced platform lever escapement and circular silvered Roman numeral dial with recessed gilt centre, blued steel hands and regulation lever at twelve oclock set behind a bevel glazed hinged cast brass bezel, the cylindrical copper case fitted with opposing conforming aneroid barometer calibrated in barometric inches and with the usual observations and curved Fahrenheit scale mercury thermometer between brass baton uprights capped with knop finials, the top applied with small cylindrical glazed upstand enclosing compass beneath conical cover and ring handle, the base with stretcher modelled as a faux oil reservoir set between the baton uprights fitted with bun feet, 24cm (9.4ins) high excluding handle
A mahogany stick barometer, silvered register plate signed C.W. Dixey, Opt to the Queen, New Bond Str, London, vernier and thermometer, case with swan neck pediment above the door, urn finial, 39in (99cm) high. Provenance: The Old Rectory, Little Langford, Wiltshire. Sold by order of Trustees of the Estate of the late Miss S.F. Rooke.

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23429 Los(e)/Seite