WHEEL AND AXLE 1151
Two wheels 150mm dia and 75mm dia made out of solid hard wood with flat bottom
grooves. Supplied with a metal axle and a cord.
BENDING OF BEAM ASSEMBLE 1152
For determining young’s modulus for the material of a beam when supported at its extremities. Comprising of a chrome metal plated bar 1 meter long, resting on the knife-edges of 2 heavy table clamps, hanger with knife edge support to rest on the beam with micrometer or spherometer attachment and with electric contacts, but without weights.
PROJECTILE APPARATUS (Free Falling Body Apparatus) 1153
To illustrate that a body impelled horizontally will fall vertically at the
same rate as a similar body allowed to fall freely. Comprises spring loaded
L Section launcher with holes tor locating two 19mm dia steel ball which
act as projectiles. Launcher is released by push button and projects one
ball forwarded and allowing the other to fall freely. Mounted on wooden block,
180x60x30 mm which may be clamped to bench and has convenient storage pocket
for the balls. Complete with 2 steel balls.
DYNAMIC TROLLEYS 1154
300mm long, metal reinforced at ends having three low friction ball bearing
wheels filled with spring loaded impulse rod having three elastic positions
to provide different impulses. The rod is triggered by a release pin.
DYNAMIC TROLLEYS 1155
Improved model, similar to HARRIS. Made of single pcs. wooden block with three
rubber wheels mounted with steel balls for min. friction plunger made of
S.S. pipe with Nylon cork at the front.
BALANCE LEVER 1156
A direct reading, single pan balance with its scale in the form of a quadrant. The arc scale is graduated in dual ranges of 0-250 x 1gm and 0-1000 x 5gm which can be set using the weight arm provided. Cast aluminum frame with all steel parts chrome plated. Leveling screw for zero adjustment.
TICKER TAPE TIMER 1157
It comprises an electromagnet with spring loaded armature. Guides for paper
tape are provided. Dotting screw working on electromagnet marks the paper
tape running under a carbon disc. Supplied with paper roll. AC or DC.
TICKER TAPE TIMER (AC 50-60 Hz) 1158
An improved rugged model providing fixed frequency of 50 dots per second, operating
on 5-12 volts AC. Design is such that there are no parts to adjust loose
or to wear out. Base is heavy metal with rubber feet so that clamping is
not necessary. The tape platform is adjustable so that number of tracks may
be made on one tape and carbon disc is efficiently used. Input by 4mm socket
terminals. Dimensions :175 x 550 x 55mm approx. Weight : 550 gm approx.
SPRING EXTENSIONS STEEL 1159
Used for demonstrating Hook’s Law
ROTATING PLATFORM 1160
Comprising a platform 310 x 310mm on which a student may stand in angular momentum
experiments. The large diameter bearing is specially designed to withstand
off centre forces at the same time allowing free rotation. The base is fitted
with anti-slip rubber sheet.
COLLISION IN TWO DIMENSIONAL KIT 1161
A curved ramps 260x325 mm length x radius with metal ball track, fitted to
base 140 x 90 mm length x width, one adjustable ball supports, one clamp
to fit slot on base of ramp. One plumb line assembly and 2 steel ball 12
INCLINED PLANE, SIMPLE 1163
Hardwood. comprising cutaway base to allow cord to hang freely and hinged plane
600x75x8 mm with aluminium pulley, 28mm diameter, and stepped lower face
to accommodate wood block for setting at angles between approximately 24º and
45º. With cylindrical metal roller and pan.
PENDULUMS OF STAND 1162
Three 2.5cm Pendulum bobs of wood, iron and steel are suspended from a common hanger mounted on a vertical rod screwed to a heavy metal stand. A meter scale and a sliding index can control the length of the first cord. Zero of meter stick is placed at the bottom and when the center of the pendulum is placed opposite this point, the length of the pendulum is read directly from the position of the slider.
INCLINED PLANE 1164
For experiments on sliding friction comprises inclined wood board 600 x 100
x 20mm with 22mm dia metal pulley, hinged to wooden base 450 x 100 x 20mm
linear scale fixed to the edge of plane and vertical linear and 0-45 angular
scale fixed to the base, with clamp shaped for use as an index. Supplied
with one each wooden block 200 x 75mm and 100 x 75mm. Metal block 100 x 75mm,
scale pan 75mm dia, cord and hooks.
FRICTION KIT 1165
To provide a simple demonstration of the relationship between friction and
reaction. Kit comprises warp-free wood board, 760x150x20 mm thick, with steel
eye ring in one end edge, 10 stainless steel rollers 190mm long x 13mm diameter,
4 wood blocks 230x115x20mm thick, one of which has a steel eye in one edge,
and a stout metal crank handle in a U shaped bracket, 90x50 mm, to tow board
on rollers. Without spring balance. ACCESSORY : Spring balance 1 Kg.