Fluid Mechanics Apparatus 

Displacement Vessel (ELP.103.116) Metal one piece powder coated size of vessel 115 x 90 mm. height x diameter, with spout , for specific gravity experiments.

 

Displacement Vessel (ELP.103.117) Metal, large size for class demonstration, size of vessel 225 x 125 mm. height x diameter with spout , for specific gravity experiments.

 

Displacement Vessel (ELP.103.118)

Made of glass, medium size for class demonstration with spout for specific gravity experiments.

.01 Cap. 250 ml.

.02 Cap. 500 ml.

 

Overflow Can (ELP.103.119) A useful lab tool, excellent for displacement experiments and density measurements! The overflow can is made of a seamless aluminum, and has a pour spout.

 

Catch Bucket (ELP.103.120) Seamless aluminum bucket with handle, used in displacement experiments. The capacity is 300 ml. Designed to catch the overflow for the #1502 overflow can.

 

Overflow Can & Catch Bucket Set (ELP.103.121) Get both of these displacement necessities in one convenient set!

 

Bucket & Cylinder (ELP.103.122) For demonstrating Archimedes’s principle, this is a simple form in brass, suitable for class demonstration or individual use. The bucket has suspension loop at top and hook at the bottom. The cylinder has a suspension hook at one end. Size 6 cm. long, overall length when extended 16 cm.

 

Specific Gravity Bottle (ELP.103.123)

Spherical pattern not adjusted, light blown corning glass, with flat bottom and perforated stopper.

.01 Capacity 25 ml.

.02 Capacity 50 ml.

 

Bernouilli Tube (ELP.103.135) A horizontal tube 500 mm. long with a bore of 10 mm. is contricted near its centre and short side tubes are provided in each section for the attachment of glass manometer tubes 270 mm. long x 8 mm. bore.

 

Venturi Meter Demonstrator (ELP.103.136) This is a clear and simple way to demonstrate Bernoulli’s Law to your students.The Venturi tube is found in everything from carburators to aircraft airspeed indicators. This demonstration version is made of glass and has three side tubes for attaching an included three-leg manometer.The manometer is filled with colored water to show the relative pressures at significant points of the tube when gas is flowing through it. By blowing through the tube, a sufficient gas flow can produce clear differences of water level in the three manometer legs. The tube is 22 cm long, 2.0 cm in diameter at the wide ends, and narrows to 10 cm in diameter in the middle.

 

Combined U-Tube & Hare’s Apparatus (ELP.103.137) Comprising a glass U-tube 5 cm. long x 1 cm. diameter mounted on one side of the stand. Hare’s apparatus consisting of a three-limbed tube, the central limb fitted with rubber tubing and Mohr clip and the two outer limbs connected to glass tube 41 cm. long x 1 cm. diameter mounted on the other Scale 0 to 50 cm. x 1 mm. or length x width, fixed to each side of the stand. Overall height 55 cm.

 

Hare’s Apparatus (ELP.103.138) Comprising a three - limbed glass tube, with 25 cm. of rubber tubing on centre limb closed by Hoffmann screw-clip, mounted on a polished wooden stand with scale 61 cm . long with zero at bottom. The column height is adjustable so that their lower ends just touch the free surfaces of liquids. Overall dimensions 68 x 30 x 15 cm. approx.

 

Hare’s Tube (ELP.103.139) Unmounted glass tube, limbs 60 cm. long x 1 cm. diameter , with a third short limb for connecting a suction tube.

 ‘U’ - Tube (ELP.103.140) For use as a manometer, the ‘U’ tube limbs 60 cm. long and 1 cm. outside diameter.

 

Boyle’s Law Apparatus (ELP.103.141) Mounted on wooden stand nicely polished with heavy iron base, finish in Powder coated, having levelling screws. Overall height 120 cm. Boxwood scale 100 cm. graduated in mm reading in both direction. The mercury resevoir held in clamp, sliding on metal rod chromium plated. Complete with pressure rubber tubing and set of 2 tubes open and close. Made from Corning glass, without mercury.

 Boyle’s Law apparatus (ELP.103.142)

A wide bore is mounted in vertically in front of a scale graduated 0 - 60 cms. 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 the metal pressure chamber which is fitted with a bourdon - type gauge caliberated 0 to 50 lbs. in 2 & 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 is its (actual) total pressure are directly indicated. The tube is of extra strong glass & plastic safety screen is securely fitted on the front. Overall height of apparatus is

690 mm. approx.

 

Boyle’s Law apparatus (ELP.103.143) This widely used and low cost apparatus is ideal for gathering data in support of Boyle's Law. It is supplied with a cap to seal the calibrated syringe and a packet of lubricant. A series of uniform masses (such as textbooks) are added to the top platform and the corresponding volume is read on the way down and again on the way back up to give useful average values. Students then plot pressure versus the reciprocal of the volume in search of a straight line.

 

Foot pump (ELP.103.144) For use with Boyle’s law apparatus, this foot pump is standard car pattern with an integral pressure gauge caliberated o - 4 Kg/cm2. An adapter is included so that connection may be made by rubber laboratory tubing where ever necessary. The pump has cylinder 120 x 55mm. a and is provided with 630 mm. of integral pressure tubing terminating in standard type valve connector

 

Bourdon Gauge (ELP.103.145) A circular gauge having an overall diameter of 100 mm. and a depth of 40 mm. The dial reads 0 - 50 lbs/ln2 x 1 & 0 to 3.5 kg/cm2 x 0.1 actual (total) pressure and the case has a clear perspex back so that the working parts may be seen.

 Charle’s Law Appartus (Jolly’s Apparatus) (ELP.103.146) Mounted on wooden stand nicely polished with heavy iron base, finish in Powder coated, having levelling screws. Overall height 120 cm. Boxwood scale 100 cm. graduated in mm. reading in both direction. The mercury reservior held in clamp slides on metal rod chromium plated. A Jolly’s air bulb made from corning glass is supplied mounted on a wooden frame which can be slotted on the side. Complete with pressure rubber tubing and set of 2 corning glass tube, without mercury.

 

Jolly’s Air Bulb (ELP.103.147) made from corning glass.

 

Boyle’s Law Glass Tube (ELP.103.148) Set of two- open and close, made from Neutral glass.

 Boyle’s Law Glass Tube (ELP.103.149) Graduated, set of two- open and close, made from corning glass.

 

Boyle’s Law burette (ELP.103.150) Graduated, with stop cock, made from corning glass.

 

Pump plate (ELP.103.151)

Made of aluminium metal, with tube for connection to pump and stopcock for air regulation on central pillar. Mounted on heavy tripod base, finished in black duco colour.

Diameter of Pump Plate (mm)

.01 175

.02 200

.03 250

 

Air Pump Syringe (ELP.103.152) With nozzle, rifled for rubber tubing. Supplied as a vaccum pump.

 

Guinea & Feather Apparatus (ELP.103.153)

Unevacuated glass tube 50 cms. long, 16 mm. diameter made from hard glass

.01With two rubber bungs one carrying brass tube and 40 cms. long pressure rubber tubing to connect to vaccum pump.

.02 Very god Quality with adaptor to work with pump plate

 

Apparatus to show that air has weight (ELP.103.154) Globe fitted with brass stopcock and screws to fit air pumps plates and with hook for attachment to balances.

 

LUNG DEMONSTRATION APPARATUS (ELP.103.155) To show how the lungs are filled & emptied with air by the relaxation & contraction of the diaphragm muscle. Two balloons attached to a Y tube simulate the lungs; the chest cavity is 22.5x15cm jar with open top & stout rubber sheet which acts as the diaphragm.

 

Bell in vaccum (ELP.103.156) For use on pump plate not less than 15 cm. dia. Electric Bell operating on 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar.

 

Air Pump Vaccum (ELP.103.157)

Fixed to polished seasoned teakwood base, single barrel made from steel pipe with stopcock. Pump plate made of aluminium metal.

Diameter of Pump Plate (mm.)

.01 125

.02 150

.03 250

 

Hydraulic Press (ELP.103.158) To show transmissibility of pressure. Two graduated syringes l0 ml & 50 ml are joined at bottom through a 3-way stopcock, the upper ends having metal platforms. on metal stand.

 Vaccum Pomp Rotary (ELP.103.159)

Single Stage Pumps are known for their for their compact design, reliablity and efficient performance. Designed to achieve maximum vaccum in a short time. Gives trouble free performance for years.

The main assembly of pump consists of a stator with a rotar mounted

eccentrically. The rotar is fitted with two spring loaded diametrically opposed vanes, which moves in and out of their slots, pressing against inner surface of stator. When the rotar revolves eccentrically these vanes sweep the air space, two times in a single revolution creating the vaccum. Main assembly is enclosed in a square box made from fine material capable of offering toughest resistance to corrosive intakes.

These pumps are V-belt driven and suitable for use with common electric motors.

Accessories : Belt guard, Moisture Trap, Vacuum guages, Non-return valve, Regulator, Air Ballast, Inlet dust filter, Release valve are available at extra cost.

H.P Displacement Vacuum

.01 0.25 50 Ltr/Min. 0.02 mm/Hg.

.02 0.25 75 Ltr/Min. 0.02 mm/Hg.

.03 0.50 100 Ltr/Min. 0.02 mm/Hg.

.04 0.50 150 Ltr/Min. 0.02 mm/Hg.

.05 1 200 Ltr/Min. 0.02 mm/Hg.

 

Vaccum Gauge (ELP.103.160) Mcleod shortened type to read 10 to 0.1 mm. or to 0.01 mm. of Hg. Uses about 10 ml. of mercury, supplied without mercury.

 

Magdeburg Hemisphere (ELP.103.161)

To demonstrate pressure of atmosphere, fitted with stopcock and handles. Made of brass and nickel plated.

.01 Diameter 62 mm.

.02 Diameter 75 mm.

 

Magdeburg Hemisphere (ELP.103.162)

To demonstrate pressure of atmosphere, fitted with stopcock and handles. Made of cast iron and finished in hammertone colour.

.01 Diameter 62 mm.

.02 Diameter 75 mm.

 Lift Pump (ELP.103.163) Working mode, glass overall height 355 mm. approx.

 

Lift Pump or Water Pump (ELP.103.164) Working model as Cat. No. ELP.103.163 mounted on wooden stand 430 mm. height , with metal trough.

 Force Pump (ELP.103.165) Working model glass 400x150 mm. approx. overall height x width.

 

Force Pump (ELP.103.166) Working model as Cat. No. ELP.103.165 mounted on wooden stand 430 mm. height , with metal trough.

 

Charles Law Apparatus (ELP.103.167) Glass u-tube 15 mm dia ,with one plain limb 220 mm long and one graduated limb length 120 mm .Limb graduated 25 to 35 x 0.2 ml terminating in a bulb with third limb 185 x 6 mm (l x bore ) joined at right angles to the plane of the other two. Short length of rubber tube with two clips on short length of glass tubing mounted in the end of wide bore tube with rubber cork. with tall form beaker.

 DENSITY KIT (ELP.103.168) To investigate the properties of mass and volume while developing the concept of density, students would use the scale (ruler) included to dimension two aluminum cubes, an aluminum bar, a steel ball and a

glass ball and then weigh the objects.

 

Hydraulic Press, Bramah (ELP.103.169) Working model glass 230 x 125 mm. approx. overall height x width.

 

Hydraulic Press, Bramah (ELP.103.170) Working model as Cat. No. ELP.103.169 mounted on wooden stand 270 mm. height , with metal trough.

 

Hydraulic Press (ELP.103.171) Two heavy - walled glass cylinders 40 mm. and 15 mm. inner dia. respect., both fitted with non-return valves and leather covered pistons, pump worked by hand lever 31.5 cm. long ratio about 2:1 safety valve provided in the larger piston so that pressure in excesss of that which can safely be applied to the glass cylinder enables the water to rise above the piston and escape through the overflow pipe at the top; stopcock at the base of small cylinder for replenishing cylinders with water by rubber tubing from beaker of water. Removable loading platform; wedges for breaking metal bars. Strongly constructed and mounted on base- board 29 x 19 cm. complete.

 

Equality of pressure in liquids (ELP.103.172) To demonstrate the equal transmission by liquids of pressure in all directions. Comprising glass flask with holes and glass piston.

 Spouting cylinder (ELP.103.173) For demonstrating the principle that the pressure increased with depth. Made of stout tin sheet having three orifices of the same size but at different heights down one side. Size of cylinder 400 x 68 mm. height x diameter.

 

Communicating vessel (ELP.103.174) Glass aspirator with tube having four branches of unequal cross sections. mounted on plastic base.

 

Liquid Level Apparatus (ELP.103.175) To show that the level of liquid in communicating vessels is constant irrespective of the size or shape of the vessels. The apparatus comprises of four glass tubes of different shapes and cross-sectional area projecting vertically from a common horizontal tube. The tubes are mounted on a polished wooden base.

 

Capillary apparatus (ELP.103.176) For demonstrating the relationship between capillary pressure and the bore diameter of the capillary pressure and the bore diameter of the capillary tube. Six glass capillary tubes 125 mm.long , ends ground, of various bores between 0.5 and 2.25 mm., supported by frame in shallow metal through.

 Manometer, ‘U’ tube (ELP.103.177) For use at moderate pressures, fabricated from glass tubing 6 mm. bore, 8 mm. outside diameter. The apparatus is open at both ends and is supplied unfilled, 250 mm. long, 32 mm. wide(75 mm. wide including side arm).

 

Manometer, ‘U’ tube (ELP.103.178) For use at high pressures, fabricated from thick-walled glass tubing having a bore of 4 mm. and an outside diameter of 8 mm. The apparatus is closed at one end and is supplied unfilled, 250 mm. long, 32 mm. wide (75 mm. wide including side arm.)

 Manometer, ‘U’ tube (ELP.103.179) For use at moderate pressure, having an extra bend. Fabricated from thick - walled tubing, 4 mm. bore & 8 mm. outside diameter and closed at one end. Supplied unfilled, 250 mm. long, 55 mm. wide.

 

Pascal ’s Law Apparatus (ELP.103.180) To show that the pressure of liquids depend upon their height and the surface of bottom of the columns and not on the capacities of the vessels, with plastic / glass vessels of 4 different shapes mounted on leak proof metallic collars, and chrome plated.

 

Fluid Pressure Apparatus (ELP.103.181) For demonstrating the transmissibility of fluid pressure. The apparatus comprises two brass cylinders 19 and 38 mm. diameter respectively fitted with pistons and connected by brass tube. The pistons are provided with rods terminating in circular platform each 75 mm. diameter, for loading with masses as required. The complete apparatus is mounted upon polished wooden base 203 x 100 x 22 mm. and the overall height with both pistons at the bottom of their cylinders is 245 mm.

 

Cartesian Diver (ELP.103.182) To demonstrate the transmission of pressure by liquid. Glass approx. 35 mm. long.

 Fortin’s Barometer (ELP.103.183) A superior pattern standard mercury barometer suitable for altitudes up to 600 meters. The barometer tube has a nominal bore of 7 mm. Engine divided silvered scales covering 675 to 810 mm. Hg and 26 to 32 inch Hg are screw fastened to a stove enameled brass frame at the top of the tube. A vernier reading 0.05 mm. Hg and 0.002 inch Hg. provided with an adjustment knob is mounted between the two scales. The reservoir has the standard type of adjustment screw and index , and the barometer, completer with -10 to 50 deg. C thermometer is

mounted on a polished baseboard complete with hanging plates.

 Barometer Case (ELP.103.184) For Barometers as per Cat. No. ELP.103.183 , polished hardwood with glazed front and side panels highly finished.

 

Barometer tube (ELP.103.185)

A straight tube 90 cm. long and with 3 to 4 mm. bore and one end open.

.01 Made of Corning glass.

.02 Made of Neutral glass.

 Barometer tube (ELP.103.186)

A tube 90 cm. long and with bulb on shorter limb.

.01 Made of Corning glass.

.02 Made of Neutral glass.

 

Mercury trough (ELP.103.187) Made of porcelain and glazed inside and outside.

 

Barometer Funnel (ELP.103.188) Made of Corning glass, for filling mercury in barometers tubes.

 Kinetic theory model (ELP.103.189)

The apparatus consists of a clear perspex tube 380 mm. long x 50 mm. outside diameter provided a light, freely expanded polystyrene piston and a loose fitting metal cap.

The tube is mounted by means of a bayonet type fitting in a metal cap, upon a polished wooden motor housing 170 x 170 x 130 mm. high. A low voltage d.c. motor is coupled to a crank - driven agitator. The push red button of the agitator carries a light plastic piston which oscillates in the lower end of the tube. The apparatus is supplied complete with a supply of 3 mm. dia.metal spheres & four cardboard loading discs.

Overall dimensions assembled 170 x 170 x 520 mm. High

 

KINETIC THEORY KIT (ELP.103.190) Two dimensional. Four metal trays with cork lined bottoms and vertical sides 300 x 200 x 19 mm. With 100 small coloured glass marbles and 8 large marbles of 25 mm diam.

 

Smoke Cell (ELP.103.191) To demonstrate Brownian motion. A short cylindrical cell, closed by a cover glass is held vertically in an opaque channel 90 x 90 x 30 mm. Illumination is by an intergral festoon lamp and a cylindrical lens. With 4 mm socket for connection to 12 V supply.

 

Oil Film Kit (ELP.103.192) For surface tension investigation and estimate the molecular size, using an oil film on water. Consists of 2 trays, 4 metal brooms, 8 leveling wedges, 16 mounted wire loops, 8 graticule and special holders, Olive oil, 8 beakers 10 ml., Lycopodium powder, 2 dispensers, camphor, paraffin wax, vegetable black, one paint brush, one paint cane and two sponges.

 

Surface tension Balance Searle’s (ELP.103.193) Approximately 275mm length with cast metal bridge mounted on tripod stand adjustable for height & having a levelling knurled head screw fitted on one foot. The bridge has raised end pieces to which are screwed small metal blocks securing either end of a plated steel torsion wire. One block disc slotted to facilitate adjustment for torsion of the wire by means of screw passing through the end piece. At the centre of the wire, a small clamp is fitted carrying a light weight metal pointer with an adjustable counterpoise. From a notch near the tip of the pointer is suspended a small weight pan with a hook fitted to its underside, to hold either wire frame 80x25mm or a metal clip carrying a glass microscope slide 75x25x1.5mm. The tip of the pointer moves over a graduated vertical scale complete with set of weights 1mgm to 1gm.

 

QUINCK'S APPARATUS (ELP.103.194) The method is usually used for the determination of surface tension of mercury. It comprises a circular metallic plate with three levelling screws and a sensitive spirit level.

 VISCOSITY APPARATUS STROKES'S METHOD (ELP.103.195) To show Stroke's law i.e. the fall of spheres through the liquid. With the help of this apparatus, we can determine the viscosity of a transparent liquids like glyscerine or caster oil. A corning glass tube of 35 mm dia and one meter long is made to stand firmly in between two

upright bars with the help of clamps on a heavy cast iron base. One side of the tube is open and other down side of tube is closed. A set of steel balls is provided.

 

Loop The Loop (ELP.103.196) To demonstrate and study transformation of potential energy into kinetic energy. Consists of a ‘V’ shape metal track approx. 54”(137mm) long, with the highest point being 19”(480mm) high, which is formed into a loop approx. dia. 7 ¾”(195mm), fitted on to a wooden base 16”(405) x 4”(100mm) x ¾”(20mm). Supplied complete with two steel balls ¾”(19mm) dia., and 5/8”(16mm) dia. When the ball is let go at the top it has enough energy to travel the whole length of the track.

 

G Clamp (ELP.103.197) Malleable iron frame with square cut thread clamping bolt, swivelhead on bolt adapts itself to any angle of tip.

 

Hand Blender (ELP.103.198) Very easy to operate for churning and mixing. Provided with three types of blades and a stand.

 Combined Boyle & Charle’s Law Apparatus (ELP.103.199)

Apparatus is mounted on a wooden stand with heavy metal base. A flexible U - tube ends with two glass tubes, one opened and other graduated. The graduated tube is closed with stopcock at the top, which can slide vertically along a scale 0 - 900 mm. A jolly air thermometer bulb, 60 mm. diameter is mounted on the stand and connected to a second flexible tube with glass open end, to enable the apparatus to be used as a jolly apparatus. Overall height 115 cm.

 

Pascal Demonstrator (ELP.103.200)

Hydraulic press is a great way to show Pascal Law in operation. Students will understand mechanical advantage when they use this system of connected pistons. Apply force to one syringe-type piston 10 ml.To make the liquid rise in the other 50 ml. recreating the concept behind such everyday items as power steering, shock absorbers, hydraulic jacks, etc.Comes complete with stand height 31 cm.