Browse Items (47 total)
- Collection: Copland Teaching Apparatus
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McCulloch's mariner's compass. A large compass consisting of a wide ring of card printed with directions and a degree scale, covered with glass and fixed on a steel strip screwed to a conical projection underneath. The compass is on a brass gimbal mount in a wooden box.
McCulloch's patent compass in oak box without lid. Card marked in degrees, in quadrants . Embedded brass disc inside box ' Univ. Abdn. Nat. Phil. ' In single gimbals. Patent No 1663 (1788). One of only a few in museums throughout the world.
Oscillating prism. A small glass prism connected to a brass mechanism with a crank.
Equiangular triangular prism, 13 mm side x 43 mm long (incl. brass ends) setting vertically on base made to oscillate 6 times for every rotation of an ivory handle. Could be the device mentioned in Copland's inventory. The design is very similar to…
Discharging tongs. Two metal rods with balls on the end fixed to a glass rod with a wooden handle. The metal rods are mounted on wheels allowing them to be rotated together or apart.
twin brass rods hinged at one end fitted on a glass insulating rod and wooden handle. Each rod terminates in a brass sphere; for removal of charge from electrostatically charged spheres. Likely to be one of Copland's "Discharging rod, jointed, glass…
Suction pump. A glass tube with a small brass fitting covering the top and a larger one on the bottom. Hinged on to the bottom fitting is a brass plunger with the end wrapped in fabric, operated with a lever. A small pipe also projects from the bottom fitting.
Wooden box containing demonstration suction pump in two parts; glass barrel illustrates operation of two valves, one at base of barrel and one in piston; instrument sits on velvet cloth and there seem to be space for other instrument. Matches item in…
Anamorphic drawings. Four coloured drawings on paper discs with a tall curved mirror placed at the centre: a butterfly, a man on a horse, a bust of a man's head, and two men arguing; the drawings appear normal in the mirror but are stretched out and curved on the paper.
A hemispherical polished speculum cylinder mounted in a wood pillar case with brass small handle. Tin-plate storage case. Ivory maker's plate inlaid into pillar. Accompanied by a selection of early 19th century anamorphic drawings.
6 anamorphic…
6 anamorphic…
Insulating stand. A thin brass disc about 15 centimetres wide on a glass pillar with a turned wooden base.
Wooden base with glass pillar and brass table for electrostatic experiments.
Diagonal machine. A small square wooden frame, about a foot wide. A slightly smaller frame slides horizontally out. A brass ball on a string and attached to a pulley on the smaller frame moves diagonally upwards as the frame is slid horizontally.
Demonstration originated by James Ferguson to illustrate that the sum of compound motions at right angles produce a diagonal displacement. Wooden frame sliding element holding with brass ball on rod that slides up rod as frame is moved sideways. Disk…
Spark or flicker tube. A glass tube with bulbous brass ends and a spiral of silver metal dots running along the inside.
Glass tube with brass ends; with ball terminals; inside tube is spiral of small metal discs each seperated by gap of less than 1 mm; when tube is placed across an electrostatic generator, a spiral discharge is seen around inside of tube caused by…
Combustion tube. A glass tube about 40 centimetres long with brass fittings and turned wooden knobs on either end. On one end the knob can be pulled or pushed to operate a plunger inside the tube.
Thick glass tube with hand operated piston with brass end caps; wooden 'doorknob' handles at either end; inflammable vapour is inserted into tube (ether?) and then compressed firmly with piston; when compression is high enough the vapour…
Dip quadrant. A long steel needle mounted on a brass stand allowing it to rotate in one direction. An arc of brass projects from the base of the stand in the same direction as the rotation of the needle. The arc is marked with a degrees scale.
For determining the angle of tilt from the vertical of the local magnetic field. Brass dip quadrant calibrated at 2 degree intervals from 0 (at bottom) to 84 degrees on circular brass base with embeeded lead weight. Pivoted lozenge-shaped needle…