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COMPOUND METAL STRIP (0213)
To show the unequal or differential expansion of two different metals in a bimetallic strips. Comprising two strips, each of different metal but if same size, riveted together end to end and fitted on an insulated handle. On heating, the compound strip bends into curvature with metal having more coefficient of expansion on concave side and other one on convex side. Returns back to its original shape on cooling. The thickness of the two metal strips selectable carefully so as to obtain sufficient curving on applying little heat. Comprising a length of bimetal strip 150 x 20mm mounted in a wooden handle. The strip is only 1.5 mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.
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COMPOUND METAL STRIP Brass and Invar; 1.5mm thick with strip size 150 x 20 [length x width] (0213)
To show the unequal or differential expansion of two different metals in a bimetallic strips. Comprising two strips, each of different metal but if same size, riveted together end to end and fitted on an insulated handle. On heating, the compound strip bends into curvature with metal having more coefficient of expansion on concave side and other one on convex side. Returns back to its original shape on cooling. The thickness of the two metal strips selectable carefully so as to obtain sufficient curving on applying little heat. Comprising a length of bimetal strip 150 x 20mm mounted in a wooden handle. The strip is only 1.5 mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.
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COMPOUND METAL STRIP Copper and Iron; size about 200 x 25mm [length x width) (0213)
To show the unequal or differential expansion of two different metals in a bimetallic strips. Comprising two strips, each of different metal but if same size, riveted together end to end and fitted on an insulated handle. On heating, the compound strip bends into curvature with metal having more coefficient of expansion on concave side and other one on convex side. Returns back to its original shape on cooling. The thickness of the two metal strips selectable carefully so as to obtain sufficient curving on applying little heat. Comprising a length of bimetal strip 150 x 20mm mounted in a wooden handle. The strip is only 1.5 mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.
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COMPOUND METAL STRIP Brass and Steel; size about 200 x 25mm [length x width] (0213)
To show the unequal or differential expansion of two different metals in a bimetallic strips. Comprising two strips, each of different metal but if same size, riveted together end to end and fitted on an insulated handle. On heating, the compound strip bends into curvature with metal having more coefficient of expansion on concave side and other one on convex side. Returns back to its original shape on cooling. The thickness of the two metal strips selectable carefully so as to obtain sufficient curving on applying little heat. Comprising a length of bimetal strip 150 x 20mm mounted in a wooden handle. The strip is only 1.5 mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.
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COMPOUND METAL STRIP Brass and Iron; size about 300 x 30mm [length x width], with new improved (0213)
To show the unequal or differential expansion of two different metals in a bimetallic strips. Comprising two strips, each of different metal but if same size, riveted together end to end and fitted on an insulated handle. On heating, the compound strip bends into curvature with metal having more coefficient of expansion on concave side and other one on convex side. Returns back to its original shape on cooling. The thickness of the two metal strips selectable carefully so as to obtain sufficient curving on applying little heat. Comprising a length of bimetal strip 150 x 20mm mounted in a wooden handle. The strip is only 1.5 mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.
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WOOD & METAL CYLINDER (0214)
Comprising a cylinder one half of which is polished wood and the other half the other metal. If paper is wrapped tightly around the cylinder and the rod is held above the flame, the portion in contact with the wood will be quickly scorched while the portion in contact with the metal will remain uncharred, showing the differences in their respective thermal conductivities.
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WOOD & METAL CYLINDER Wood & Metal Cylinder (small) (0214)
Comprising a cylinder one half of which is polished wood and the other half the other metal. If paper is wrapped tightly around the cylinder and the rod is held above the flame, the portion in contact with the wood will be quickly scorched while the portion in contact with the metal will remain uncharred, showing the differences in their respective thermal conductivities.
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WOOD & METAL CYLINDER Wood & Metal Cylinder (large) (0214)
Comprising a cylinder one half of which is polished wood and the other half the other metal. If paper is wrapped tightly around the cylinder and the rod is held above the flame, the portion in contact with the wood will be quickly scorched while the portion in contact with the metal will remain uncharred, showing the differences in their respective thermal conductivities.
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THERMOSTAT MOOEL (0215)
Demonstrates how the bending due to differential expansion of two different metal strips can be used for operating the thermostat for temperature control. A vertically mounted bimetallic strip bends with the rise in temperature causing it to open the electrical contact and closing the same on cooling, thus controlling the switching ON/OFF of the circuit. Consists of binding posts for connection to low current circuits and adjustable contacts. Mounted on base
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CONDUCTIVITY APPARATUS, EDSER (0216)
To demonstrate different thermal conductivities of different metals. The apparatus also facilitates the studying of observations at later stage also through the use of index. Apparatus consists of metal rods mounted vertically on the outer side at the base of a cylindrical copper vessel. The vessel has thick rim at the top for supporting it by ring fitted to a retort stand. Supplied complete with indices.
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CONDUCTIVITY APPARATUS, EDSER With 3 metal rods-one each of brass, copper and aluminium, and 3 indices (0216)
To demonstrate different thermal conductivities of different metals. The apparatus also facilitates the studying of observations at later stage also through the use of index. Apparatus consists of metal rods mounted vertically on the outer side at the base of a cylindrical copper vessel. The vessel has thick rim at the top for supporting it by ring fitted to a retort stand. Supplied complete with indices.
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CONDUCTIVITY APPARATUS, EDSER With 4 metal rods - one each of brass, copper, aluminium &mild steel, &4 indices (0216)
To demonstrate different thermal conductivities of different metals. The apparatus also facilitates the studying of observations at later stage also through the use of index. Apparatus consists of metal rods mounted vertically on the outer side at the base of a cylindrical copper vessel. The vessel has thick rim at the top for supporting it by ring fitted to a retort stand. Supplied complete with indices.
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CONDUCTIVITY APPARATUS, EDSER With 5 metal rods - one each of brass, copper, aluminium, mild steel and stainless steel, and with 5 indices (0216)
To demonstrate different thermal conductivities of different metals. The apparatus also facilitates the studying of observations at later stage also through the use of index. Apparatus consists of metal rods mounted vertically on the outer side at the base of a cylindrical copper vessel. The vessel has thick rim at the top for supporting it by ring fitted to a retort stand. Supplied complete with indices.
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THERMAL CONDUCTIVITY OF METAL APPARATUS (0217)
Comprising strips of four metal, one each of copper, iron, aluminium and brass fixed in symmetrical fashion, perpendicular to each other. on a wooden frame. with the strips meeting at the center. Outer ends of the strips has small recesses for holding paraffin wax.
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THERMAL CONDUCTIVITY OF METAL APPARATUS Metal Strips mounted on circular wooden frame (0217)
Comprising strips of four metal, one each of copper, iron, aluminium and brass fixed in symmetrical fashion, perpendicular to each other. on a wooden frame. with the strips meeting at the center. Outer ends of the strips has small recesses for holding paraffin wax.
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