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LUNG DEMONSTRATION APPARATUS
To show how the lungs are emptied and filled with air by the relaxation and contraction of the diaphragm muscle. Two balloons attached to a Y-tube simulate the lungs. The chest cavity is 22.5 x 15cm jar with open top and stout rubber sheet which acts as the diaphragm.
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SPECIFIC GRAVITY BOTTLE NEUTRAL GLASS
Spherical pattern, adjusted light blown neutral glass with flat bottom and perforated stopper.
Description :-
| Type |
Capacity |
| 01 |
25ml |
| 02 |
50ml |
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SPECIFIC GRAVITY BOTTLE BOROSILICATE GLASS
Spherical pattern, adjusted light blown neutral glass with flat bottom and perforated stopper.
Description :-
| Type |
Capacity |
| 01 |
25ml |
| 02 |
50ml |
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HYDROMETER NICHOLSON
simple density plated, hollow body joints soldered overall size 250 x 35mm height x dia with upper loading pan and lower loaded weighted pan.
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BATTERY HYDROMETER
Glass Hydrometer range 1100-1300 with coloured zones, blue, white and red for charged, partly charged, uncharged conditions respectively. Glass body, compressible rubber bulb and rubber tube with fitting to body in card box.
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HARE?S APPARATUS
Comprising Three limbed glass tube mounted on polished wooden stand with scale incm and mm. The column height readings are facilitated by means of sliding stand, which can be lifted upward and downward so that their lower ends just touch the free surfaces of the liquids, complete with rubber tube and pinch clip.
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HARE?S TUBE
Unmounted glass tube, limbs 600mm long x 10mm dia, with a third short limb for connecting a suction tube.
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?U? TUBE
For use as a manometer, this is a mounted glass tube with limbs 600mm long x 10mm dia on graduated wooden stand.
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BOYLE?S LAW APPARATUS
Having 220mm long x 8mm inside diameter glass tubes one is closed at the top and other one is opened. The lower ends of tubes are drawn out and connected together by 1.5m of rubber pressure tubing 10mm outside diameter x 5mm inside diameter.
Both the tubes are mounted on the brackets which can be locked in any portion on the metal supporting rods. Stand is made of approximately 1.06m in height and carries a graduated scale 0 to100cm with mm divisions in centre and figured every 2cm up either side on heavy metal box.
Mercury required for this apparatus is approx. 30cm³. Supplied without mercury.
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JOLLY AIR BULB
In above a Jolly Air Thermometer bulb 50mm dia is mounted on a wooden frame which can be fixed at three places, up, middle and down on the stand and enable the apparatus to be used as Jolly?s Apparatus.
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BOYLE?S LAW APPARATUS
A wide bore glass tube is mounted vertically in front of a scale graduated 0 to 60cm.
Zero corresponds to the inside of the closed (top) end of the tube. Air is confined in the tube by a coloured oil contained in a metal pressure chamber which is fitted with a Bourdon type gauge calibrated 0 to 50 lbs. In² & 3.5 Kg/cm² actual pressure.
A valve is fitted to the air inlet tube from the pump. As the pressure in the oil chamber is increased, oil in its actual (total) pressure is directly indicated. The tube is of extra strong glass and plastic safety screen is secured is fitted on front.
Overall height of apparatus 690mm approx.
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FOOT PUMP
For use Cat. No 266.1 this foot pump is of standard car pattern with an integral pressure gauge calibrated 0 to 4 Kg/cm 2. An adapter is included so that connection may be made by rubber laboratory tubing where necessary.
The pump has a cylinder 120 x 55mm and is provided with 630mm of integral pressure tubing terminating in a standard type valve connector. Dimensions 330 x 90 x 85 overall.
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MERCURY TROUGH
Made of porcelain Cap. 150ml.
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PASCAL?S APPARATUS (Weinhold?s)
To show that the pressure of liquids varies with depth and not the shape of the vessel with glass vessels of 4 different shapes mounted in leak proof metallic collars mounted on a metal base. With plastic bowl.
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BRAMAH HYDRAULIC PRESS
All glass working model, with visible coloured valves, overall height 225 x 120mm width, mounted on wooden stand 270mm height with plastic trough.
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