Scientific and Laboratory Instruments

Model of five different types, properly mounted on separate boards. It is very interesting to measure circular and linear displacement of the cams and followers respectively

(a) Plate cam : with flat faced resiprocating follower
(b) Tangent cam : with roller oscillating follower
(c) Cylinderical cam : with translating follower
(d) Translating cam with resiprocating knife edge follower
(e) End cam with translating follower

Fitted with heavy cast iron wall brackets. The grooved wheel is of 25 cm diameter and gears are machine cut. Ihis apparatus- is used for experiments in efficiency of mechanical advantage. Weights are not included.

 The convenience and versatility of this unit has made it very popular. It consists of a 15x60 cm. wooden board with glass top hinged on an iron base to which a sector with graduated arc and vertical scale is provided. The plane may be clamped at any angle upto 45 degice. A 5 cm dia frictionless pulley is attached to the end by means of a clamp adjustable to any necessary position. Complete with brass roller, cart and pan, but without weights.

Overshot, undershot and breast water wheels can be easily explained with this non rusting metallic model.

Comprising of two iron beams connected to each other and fitted on two different stands, well balanced with a scale pan. All metal parts fitted on wooden polished base. Complete with '1 kg. Weight and a physical iron nickelled weight box 1-50 gms.

 Experimental type. Same as above but with double set of gearing arrangement. Without weights.

Student quickly grasp a clear understanding of the mechanical advantage of the wheel and axle using this all metallic smooth running apparatus. The wheel is of 35 ern dia and axle in 3 steps of 20, 10 and Sam reducing diameter supported on ball bearings in iron brack-ets. The base is provided with holes to fix the apparatus on wall. Complete with snatch pulley block, cord and hooks. Weights are not included.

All metal wheel of 20 and 30 cm diameter. The axle having diameter of 15 et 7. 5 cm respectively giving a ratio ot 1:2:4. A steel axle passes through the centre of the wheel which is mounted on ball bearing in cast iron brackets reducing friction to minimum. The base has holes to fix the apparatus on wall. Complete with snatch pulley block, cord and hooks but without weights.

Strongly built frame mounted on a heavy cast iron base and comprising of single and double wheels. The gears are machine cut and the jib is 1.2 meter high and tapered at both isnds, the machine is capable of working either single or double purchase. Complete with cord and hooks. Without weights.

 Consisting of a jack screw of 4 T.P.I. and double start carrying load clatform. The nut of the screw is fitted on a pedestal bearing and is keyed to a worm gear of 40 teeth operated by a worm screw. The spindle of the warm screw is provided with an effort wheel of 15 cm diameter. Weights are not included.

The apparatus is with two circular dial type 10kg. extension spring balances. Complete with suitable stands, a wooden beam, with scale and slots at regular intervals, four stirrups, hooks and two 1kg. weights.

 Consists of a cast iron truly machi-ned wheel of 45 cm. Din with a groove. The steel axle is mounted on ball bearings to minimise friction and assembled on a sturdy wooden frame. Provided with an extension balance, rope and a set of slotted weights and hunger.

Consisting of a tubular compression balance, pivoted about an axis fitted to the base. The tie chain has en adjustable angle bracket and fitted with a 10 kg extension balance. Complete on wooden base with 1.2 meter jib. Without weights.

 A wooden right angled lever with fulcrum at the angle, the horizontal arm is of 15 cm. and vertical arm is of 20 cm., a spring balance with adjustable wingnut is attached to the shorter arm. The lever arm is with scale and greoved at every 5 cm. Complete with one sliding weight of 1kg.

The above model is fitted with a single plate type clutch, operated by pedal giving an effective action.

The model consists of all essential parts such as steering, front axle, clutch, gear box, gimblc joint arid differential gear. The model can be actuated by a cank handle and demonstrates thereby the power transmission w the driving wheels the brakes are actuated by a nand lever. Complete on about 90x45 cm polished wooden base.

Original, only dissected differential goat assembly mounted on wooden base with driving handie.

Suitably sectionised full size unit, consisting of original parts, such as master cyiinder assembly, wile& cylinder, brake snoes, brake drum and necessary connection. Complete with operating lever mounted on heavy wooden base.

Hydraulic Brake Unit

Same as above but with two brake drums and one master cylinder. Suitably niuunted on Heavy wooden base with °pedaling br ake pedal and lever.

 All metallic construction accurately machine cut screw with a pitah of 5 mm carrying a double flanged turn table of about 20 cm diameter. Fitted on a heavy cast iron base and complete with two adjustable pulleys, cord and hooks. Weights are not included.

 An all metallic self contained apparatus useful for demonstrating the efficiency of worm and wheel and also the principle of work. consisting of a machine cut worm gear of 25 cm diameter, carrying a metal drum of 12 cm diameter, and machine cut worm on steel spindle carry-ing a 12 cm diameter pulley. The whole arrangement is fixed on heavy cast iron bracket capable to be fixed to a wall. Complete with effort pulley, string and hooks but without weights.

(a) Single Purchase
(b) Double Purchase
(c) tipple Purchase

For experimntally verifying the laws of trlngle, p9rallelograrn and polygon of fo-ces. Comprising of a . C! Oular 40 cm. Dia-meter aluminium disc, graduated into 360 degrees. Complete with levelling screws, clamping dovic-3 to fix the table at any desired angle, five slid;ng clamp pulleys, central ring, string and five sets of iron nickelled slotted weights, each set containing nine weights and one hanger of 5ognis. Each.

Model of five different types, properly mounted on separate boards. It is very interesting to measure circular and linear displacement of the cams and followers respectively 

(a) Plate cam : with flat faced resiprocating follower
(b) Tangent cam : with roller oscillating follower
(c) Cylinderical cam : with translating follower 
(d) Translating cam with resiprocating knife edge follower
(e) End cam with translating follower