Cat. No. 3005
To demonstrate thermal expansion. Comprising a brass ball, a brass ring mounted on a rod with a wooden handle, a chain is provided to hold the ball with the ring. The ball passes through the ring when cold but does not after being heated.
Cat. No. 3010
An apparatus for demonstrating thermal expansion, comprising a brass ball 25mm dia., with rings adjustable mounted on a tripod base.
Cat. No. 3025
The elongation of rod is measured by a micrometer screw. The brass tube is 500x25mm C.P. With inlet & outlet tubes for steam & opening for thermometer reading to 1 x 110C. The binding posts are provided on the supports for connecting a belt, buzzer, or galvanometer for indicating the exact point of contact of the screw. Provided with three rods of Brass, Iron, & Aluminium.
Cat. No. 3040
Having glass tubes 220x8mm (internal diameter), one closed at the top while the other open. The lower ends of the tubes are drawn out & connected together by 1.5m of rubber pressure tubing (outer dia 10mm & inner dia 5mm). Both the tubes are mounted on brackets which can be locked on any portion on the metal supporting rods.
Cat. No. 3060
Consisting of spun copper cylinder contained within a large 75mm diameter x 100mm aluminum outer vessel with 10mm of insulating material between. Supplied with cover for outer vessel with bung for mounting thermometer support clip.
Cat. No. 3075
A set of 6 metal cylinders of copper, brass, iron, zinc, lead, & aluminium of 100gms each (±10%) & each drilled for suspension.
Cat. No. 3095
Consists of a cylindrical copper rod about 300mm long & 25mm diameter with its one end surrounded by a steam jacket for heating it from a boiler & the other end is kept cool by a system of water flowing through a spiral tube soldered to that end. Through two sockets, two thermometers are inserted in the rods for finding the temperature at two points. Two more thermometers are inserted in the other end which is kept cool by the stream of water.
Cat. No. 4010
Evacuated glass bulb of approx. 70mm diameter having fine pivot at its centre which supports four light weight vane of mica 10mm square approx. & blackened on one surface. Mounted on a bakelite stand. When exposed to sunlight or bright lamp. The rotor rotates rapidly.
Cat. No. 4030
Comprising an iron flywheel 115mm diameter, mass 1.2 kg, mounted in cast brackets with nylon bearings. The shaft has an aluminium V-pulley 44mm diameter for driving with the spring belt. Dimensions of base 155x105mm approx.
Cat. No. 4085
Made of steel, half red & half blue ( for N & S ) spray painted, with keepers.
Cat. No. 4140
With detachable plastic cover, dome gong. For use on 3 to 12V AC/DC supplies.
Cat. No. 4155
A bakelite ring or bobbin is of 165mm diameter with 3 windings of 2, 50, & 500 turns. The magnetometer is supported on a brass tube fitted on an ebonite plate, which is free to revolve in the base of the instrument. The magnetometer & the ring can both be rotated independently of the base which is with levelling screws.
Cat. No. 4160
The primaries are wound with thicker copper enameled covered wire on letherite pipe in two layers. The secondary coils are divided into two parts & are given heavy insulation. Each layer is wound in a cover of butter paper & are completing the winding
Cat. No 4165
It is based on the parts of the Westminster Electromagnetic Kit comprises 6 wood support base 100x45x10mm, 6 wood armatures, 6 aluminium shafts, 6 mild steel yokes, 12 magnets, 24 split pins, 125 rivets, 1 reel plastic covered copper wire, rubber tubing.
Cat. No. 4210
Brass dial head about 40mm dia., divided in 100 OR 200 parts registering on vertical scale 10-0-10mm, fitted with metal frame, lead screw & three legs (40mm separation) are of mild steel.
Cat. No. 4220
Horizontal and vertical scales of stainless steel. The cast iron base is fitted with leveling screws with the top duly machined over which slides a metal carriage. Slide can be clamped at any position by means of clamping screw. Fine adjustment for final reading is with a micrometer screw. A vertical slide operating in a similar way is fitted on the horizontal carriage..
Cat. No. 4225
This specially designed microscope for Newton’s rings experiment is very compact in size and economically priced. It has a built in light-reflecting unit and within the lightweight aluminum cast body the Newton’s rings apparatus can be placed. The motion to the microscope is given by a micrometer screw of traverse 10mm and least count 0.01mm..
Cat. No. 4235
Smooth hardwood geometric solids facilitate the teaching of basic geometric concepts at all levels. The plastic storage container contins either a 16 piece or 19 piece set. Set of 16 & 19
Cat. No. 4260
For verifying laws of composition and resolution of forces, comprising a machined aluminium table 40 cm diam., scale graduated 360°, on heavy vertical support rod and tripod base.
Cat. No. 4305
Robust, standard pattern timer for general classroom use. It has a hand precision spring movement and large start and reset triggers for operation.
Cat. No. 4315
Plastic pulleys mounted in metal brackets, dia. 50mm. Type: Single 1 hook, Single 2 hook, Double Parallel, Double Long, Triple Parallel, Triple Long
Cat. No. RICO 2122
Designed to operate on a 12V AC supply and uses the mains frequency as its timing standard. The unit is housed in a moulded case including mounting flanges. The top of the case carries a tape guide which incorporates a carbon paper disc support and an adjustable anvil for the striker point.
Cat. No. 4485
Designed for general laboratory work. The telescope is mounted on rod 18mm diameter and 450mm long fitted on a heavy tripod base. The telescope can be rotated both in vertical as well as horizontal plane. It is fitted with 180mm focus achromatic object with 25mm clear aperture, 10x Ramsden eye piece with cross wire.
Cat. No. 4560
The base, integral with the collimator tube support, carries the swinging telescope arm pivoted on a bearing with spring loaded end thrust plates. This type of bearing eliminates any slack which would otherwise develop with wear. The collimator & telescope tubes are one piece precision casting in light alloy, concealed helical action focusing devices are provided.
Cat. No. 4620
For sonometers, iron casted, finished in synthetic hammer, set of 5 including hanger, each 500 gms. Total 2.5 Kg.
Cat. No. 4625
Chrome steel, plain shank.
Set of 8
Supplied with Thermocole Box
Cat. No. 4630
Made of rustproof aluminium alloy, good quality.
Set of 8 & 13
Cat. No. 4710
Fitted with 7/16” Square Block Series Arm 1 to 5000 Ohm total 11,110 Ohms constantan coils, Accuracy 0.1%.
Cat. No. 4740
A simple demonstration of a Dynamo Model mounted on a wooden base of size 200x170mm. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine.
Cat. No. 4610
In round bakelite case with two 4mm sockets and captive head terminals. Accuracy ± 0.02 %. 0.1 to 100 Ohms
Cat. No. 4620B
Designed for quick and accurate work. The resister value on thick bakelite sheet and ready by a pointer. Each dial consists of 10 Steps. Fitted on spray painted box. Constantan Coils, Accuracy +0.1% Available in One to Five Dials.
Cat. No. 4650
Moving coil for D.C. measurements. Any single range. Range: 0-1V, 0-1.5V, 0-3V, 0-5V,0-10V, 0-25V, 0-50V, 0-100V, 0-250V
Cat. No. 4665
Very popular for use as a null detector for potentiometric set up & bridges. Housed in bakelite case with lamp & scale arrangement. Taut band type movement sufficiently shock proof. Alcomax magnet properly aged for high stability. Clamp 150mm long, easy replacement for lamp.
Cat. No. 4676
base. The generator is self exiting and charge separation occurs. A metal sphere surrounds the upper pulley assembly and charge accumulates on the sphere, which is insulated by a plastic column supporting the pulley assembly.
Cat. No. 4710I
Heavy cast iron base with entire mechanism covered with a heavy cast iron protective dust cover. It incorporates a Ball & Flange type object holder for exact centering of specimen. Lateral Movement of Knife holder ensures use of complete knife edge. Microtome has a feed range of 1-25 microns in steps of 1 micron each. Supplied with Razor 120 mm long with back and Handle, Dust cover, Honing Plate, Object Holder ( set of 3 ) and oil can.