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CALORIMETERS ALUMINIUM
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Calorimeters Aluminium

(HL-1227)
One piece spinning with parallel sides and rolled rim.
Size in mm
(A) 75x50
(B) 100X75

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CALORIMETERS COPPER
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Calorimeters Copper

(HL-1246)
One piece spinning with parallel sides and rolled rim.
Size in mm
(A) 75x50
(B) 100X75

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STEAM BOILER WITH WATER GAUGE
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Steam Boiler With Water Gauge

(HL-1230)
A copper vessel having a cylindrical body and a conical top with a short neck for a bung. Fitted with a finger loop handle, steam outlet tube refilled for rubber tubing, and a glass water gauge tube.
Capacity
A 1L
B 2L

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STEAM HEATER
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Steam Heater

(HL-1231)
Special design made from tKPHk copper sheet 175 x 100mm having filling tube with ebonite collar, steam vent and vertical tube terminating in chute passing through the side of vessel. A brass tube sliding fits in the central tube to carry thermometer. Lower end cut an angle to seal the chute.

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CYLINDERS SET EQUAL IN MASS
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Cylinders Set Equal In Mass

(HL-1216)
A set of 6 metal copper, brass, aluminium, zinc, iron and lead of 100g 10% each and are drilled for suspension.

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CYLINDERS SET EQUAL IN SIZE
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Cylinders Set Equal In Size

(HL-1219)
A set of 6 metal cylinders 40 x 10mm dia of copper, brass, iron, zinc, lead and aluminium, packed in card box. Each is drilled for suspension.

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CONDUCTIVITY APPARATUS
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Conductivity Apparatus

(HL-1236)
Consisting of metal strips of copper, brass, aluminium, iron of 100 x 15mm length x width having small cups at outer ends for holding phosphorous and screwed on a wooden ring 125mm outside dia meeting in the centre.

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COMPOUND STRIPS
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Compound Strips

(HL-1204)
For demonstrating the differential expansion of two different metals. One each brass and iron plates 350 x 35mm length x breadth riveted together from end to end with wooden handle.

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COMPOUND ROD
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Compound Rod

(HL-1218)
For showing the difference in conductivity. Rod 300 x 18mm length x dia of wKPHh is of brass and of polished wood jointed together.

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GAS TURBINE/TURBOJET ENGINE
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Gas Turbine/turbojet Engine

(HL-1248)
The section cut model is constructed of light and strong metal showing air intake, axial flow, double stage compressor, fuel supply, combustion chamber, turbine rotar, jet thrust, exhaust etc. Complete on base, with printed diagram showing working.

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WANKEL ENGINE
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Wankel Engine

(HL-1264)
The model demonstrates the principle operation. It is cutway to show the internal constructional details. Unlike other engines the rotary piston engine avoids reciprocating parts. The power piston is an arch like triangular rotor wKPHh on rotating generates an epitrochoid. Mounted on base, with printed diagram showing working.

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DEMONSTRATION GAS ENGINE 4 STROKE
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Demonstration Gas Engine 4 Stroke

(HL-1238)
A one cylinder, 4 cycled and double valve system gas engine, showing all the operations including intake, compression, explosion, exhaust, advanced and retarded spark etc. A lamp (3 volts) indicate the spark plug, with battery, fitted on wooden polished base.
Overall Dimensions : 250 x 140 x 150mm length x width x height approx.

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SPRING UNIT
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Spring Unit

(HL-1241)
Comprising a steel shaft carries a clock spring with a free wheel device and winding ratchet. Also an aluminium V pulley 56 mm diameter. One end of the shaft overhangs the base for use as a line shaft when winding up a weight.
Dimensions of laminated wood base 155x105mm

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STEAM ENGINE (SMALL)
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Steam Engine (small)

(HL-1287)
Demonstration working model with oscillating cylinder, safety valve and whistle, mounted on metal base with spirit lamp with wick.
Overall dimensions :195 x 145 x 170mm length x width x height approx.

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TURBINE/ PUMP UNIT
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Turbine/ Pump Unit

(HL-1256)
Comprising a rotor 40mm diameter has eight bucket blades and is housed in a block turning chamber 50 x 50 x 25mm, with a clear Perspex front. Two inlet tubules (for Turbine and pump operation respectively) and one outlet tubule are provided and the shaft carries a 15mm diameter pulley.
Dimensions of laminated wooden base 155 x 105mm.

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