Browse Items (47 total)
- Collection: Copland Teaching Apparatus
Sort by:
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…
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.
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…
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…
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…
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…
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.
Azimuth compass. A compass with a rotatable ring-shaped brass frame around it mounted on a heavy brass stand. The frame is marked with degree scales. Four removable rectangular plates of brass, each with a rectangular hole, a slit and three small circular holes in them, project vertically from the frame equidistant from one another.
Azimuth compass in wooden box with lid and lock and key . Brass scales. 4 sights are detachable - 2 fit on rotating compass ring and 2 on meridional line. Each sight has a slit and a cross wire one above the other. Box has inset disc ' Univ. Abdn.…
Arnold's compensated escapement model. A large brass and iron contraption, on a wooden base, consisting of a wheel with two arcs of metal terminating in brass balls around the outside, on an axel with another smaller brass wheel. Underneath is another axel with a toothed wheel and a small wooden barrel on it. An irregularly bent strip of metal curls over the top axel.
Arnold's compensated escapement - demonstration of his patent No. 1328. A brass escapement on a wooden base.
Clock movement. A small brass contraption consisting of wheels, cogs, plates, and a spring.
Spring clock and movement for demonstrating the reduction of sound in vacuum; pounds 6.6.0. Brass. Some form of 'scale' behind escapement wheel, part of an old compass dial, although no pointer evident. Fancy key, handle heart-shaped and engraved on…