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PULLEY DEMONSTRATION SET ADVANCED (0103)
A highly versatile apparatus designed to complement demonstrations of simple machines, force, mechanical equilibrium and almost every physical concept associated with pulleys and their configurations. Right from the wheel of bicycle to the gears in car, it helps explain how things work. It also makes the students understand the concepts such as how an increase in the number of pulleys decreases the force required to lift an object but increases the amount of string that must be pulled, yet the amount of work done being independent of the number of pulleys. Special features include Stable Base: Rectangular wooden base with non-skid feet has a socket near its each end for vertically mounting two threaded metal rods about 81 cm long. Also includes an eye hook and capstan for demonstrating an entire pulley system. Comprehensive: Contains almost everything needed to effectively display almost every conceivable pulley demonstration and their usefulness, including the slotted masses and mass hangers required for the purpose. Also includes two right angle clamps for supporting horizontal rod at the top of vertical rods, collars with hooks for use on horizontal rod for suspending pulleys. Comes neatly packed in a suitable cardboard box. Several Pulley Types: Explore the benefits of single pulleys, sheave pulleys and those of tandem pulleys, quadruple pulleys and even 4-step pulley (wheel & axle): or form different combinations of several of them for an efficient pulley system. Complete Set includes
Wooden Base of size about 81x20cm (length x width), with eye hook, capstan and two sockets for mounting rods.
Metal Rods, 81 x 12.5cm (length x diameter) - 3 Nos. (two rods threaded on one side and one having both ends plain)
Square Boss Heads - 2 Nos.
Right angled Clamp -1 No.
Single Pulleys - 7 Nos.
Triple Tandem Pulleys- 2 Nos. Quadruple Sheave Pulleys- 2 Nos. Wheel & Axle-1 No.
Light weight cord - 1 Roll
Collar with hook - 8 Nos.
Mass Hangers, Brass - 7 Nos. (50g-5 Nos., 20g and 10g-1 No. eachl
Masses Slotted, Brass - 15 Nos. (2 x 10g, 2 x 20g, 2 x 50g, 4x 1 DOg, 4 x 200g, 1 x 500g) Tightening rod for tightening vertical support rods.
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WHEEL AND AXLE SIMPLE FORM (0104)
Comprises an integrated wooden double wheel of diameters 150 and 50mm, with their centers on same axis and having with flat-bottomed grooves for winding of cord. The wheel is pivoted axially on a spindle diameter about 10mm for mounting the apparatus to a suitable retort stand using a clamp. Includes two hooks for suspending masses and about 8m length of whipcord. Supplied without masses.
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WHEEL AND AXLE MOUNTED ON BASE (0105)
WHEEL AND AXLE, MOUNTED ON BASE Consisting of a wooden wheel of diameter about 150mm and the axle having diameters 75 and 38mm respectively, mounted in a wooden base on adjustable cone bearings (for minimizing frictionl through a metal shaft passing through its center. Complete
with hooks for suspending masses and
whipcord. Supplied without masses
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WHEEL AND AXLE SIMPLE FORM WALL MOUNTING (0106)
Mounted on a wooden baseboard through cast metal brackets. The diameters of wheel and axle are 150 and 50mm, respectively. The base has provision for wall mounting. Supplied complete with' two hooks and 8m of whipcord but without masses.
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ROMAN ARCH (0107)
Demonstrates the typical concept behind the architecture of roman arch structures. They are famous for their strength in compressive loading. Comprises a pre-assembled 3-part buttress and a set of 23 wooden blocks and comes with a complete instruction plan for the assembly of the blocks to assemble the arch. Fully assembled arch can easily support the weight ofa child
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CENTER OF GRAVITY APPARATUS (0108)
A simple and economical apparatus for demonstration of geometrical center of gravity of two-dimensional objects. Center of gravity of a freely suspended two-dimensional object always lies along the line drawn vertically downward from its point of suspension. Comprises a clear perspex rod mounted on a base with a suspension screw at the top and four laminas of clear acrylic - 1 each of circular, triangular, square and trapezoidal. Each lamina has suspension holes along their periphery. The point of intersection of lines drawn from point of suspension of 2 or more holes of a lamina gives center of gravity of that 2?dimensional lamina
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INERTIA APPARATUS (0109)
A simple device to demonstrate the concept of inertia of a body at rest. Polished wooden stand has a receptacle at the top to contain a wooden sphere along with a spring sheet-metal striker mounted vertically on base. Also included are a wooden ball and a square piece of sheet metal. When the striker is pulled back and released, it strikes the square piece impulsively making it to slide out from under the sphere and dropping the sphere in receptacle on account of inertia of sphere at rest.
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INERTIA APPARATUS, ECONOMICAL (0110)
Comprises an aluminium rod with recessed top to take the spherical ball, mounted on a plastic base. Supplied complete with a square cardboard piece and a sphere
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LEVER APPARATUS, WOODEN (0111)
A wooden meter rule, graduated in millimeters and reading every centimeter used as lever with its fulcrum at it center. Fulcrum pivoted on a stand with the meter rule having holes 25mm apart all along length. Two hangers included with mounting pins that can be suspended from any of the holes on either side of fulcrum and are used for hanging the masses. Supplied with two mass hangers of 1 DOg each
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LEVER KIT, WOODEN (0112)
For investigation into the concept of moments, principle of lever and balances by a group of upto 8 students using the items included in the kit. Comprises five wooden beams of size about 600x44x3mm marked every 38mm and a groove on the opposite surface across its center that acts as a fulcrum point. The wooden beam is accurately balanced when its fulcrum point is located on any of the 4 fulcrums included. Supplied complete with 50 metal blanks of about 25mm square, 40 of aluminium and 10 of brass.
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LEVER KIT, METAL (0113)
Similar to LEVER KIT, WOODEN but beam of aluminium, with scratch?resistant epoxy coating
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PARALLELOGRAM OF FORCES APPARATUS (0114)
For demonstrating the concept Parallelogram and polygon law of forces, and Lami's theorem. Also shows the static equilibrium under the effect of various forces. Comprises board of size about 65 x 50cm, with two aluminium pulleys, 50mm diameter, on clamp, for mounting on board in any desired position. Complete with three mass hangers and 12 slotted masses, each of 50g each.
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FORCE TABLE (0115)
Used for verifying the laws of composition and resolution of forces utilizing vector diagrams of several concurrent forces. Comprising a thick aluminium circular table, about 40cm in diameter and finished with scratch resistant black epoxy coating. Raised outer rim of the table has circular scale graduated 0 to 360 degree x 1", and marked every 10?. Table mounted on a heavy, stable cast metal tripod base through a metal pipe, with base having three leveling screws. Also included are four pulleys in clamp that can be attached anywhere along the rim. A detachable pin, positioned at the center of the table indicates the balancing for forces through the centering of ring, tied to the strings carrying masses and suspended through the pulleys, around it. Supplied complete with set of strings tied to the rings, center pin and 4 sets of slotted masses with hanger, each set having one hanger 100g and masses 1 each of 10,20,50 and 100g
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PENDULUM BOBS (0116)
Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter
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PENDULUM BOBS BRASS (0116)
Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter
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