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SPRING BALANCES TUBULAR NEWTON

SPRING BALANCES TUBULAR NEWTON

Metal tube with hook.

Description

Type Capacity
01 1N
02 2N
03 5N
04 10N
SPRINGS, EXTENSION STEEL

SPRINGS, EXTENSION STEEL

For demonstration of Hookes Law and use with Hookes Law Apparatus.

Closely wound springs of diameter 6mm with loops at both ends. Made of 26SWG wire. Average extension for a 250g load are indicated below. Springs with specific enlongations can also be supplied.

STOP CLOCK LABORATORY

STOP CLOCK LABORATORY

Robust, standard pattern timer for general classroom use. It has a hand precision spring movement and large start and reset triggers for operation.
STOP WATCH ANALOG

STOP WATCH ANALOG

Stopwatch with 0-60 second main dial graduated to 1/5 second. The small dial reads up to 60 minutes and is graduated every 1 minute. Anti magnetic movement in a robust plated case with an overall dia. of 54mm and depth of 14mm approx.
SURFACE TENSION APPARATUS, JAEGER

SURFACE TENSION APPARATUS, JAEGER

Convenient for the determination of relative surface tensions, or after calibrations with a liquid of known surface tension for determination of an unknown. Complete with tap funnel, having ground glass stopper to fit the 500ml filter flask with side arm manometer, 500 ml beaker as bath, tube 150 x30 mm with stirrer and three jets of different sizes. All glass parts made from corning glass.
SURFACE TENSION BALANCE SEARL?S

SURFACE TENSION BALANCE SEARL?S

Approximately 275mm length with cast metal bridge mounted on tripod stand adjustable for height and 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 80 x 25mm (L x H) or a metal clip carrying a glass slide. 75 x 25 x 1.5mm (L X H X T). The tip of the pointer moves over a vertical graduated scale complete with set of weights 1mg to 1g.
Tandem Pulleys

Tandem Pulleys

These tandem pulleys are very long-lasting. They are provided with pin bearings and hooks on the top and bottom for hanging.

-01 Double Pulley (3.8cm and 5cm dia.)
-02 Triple Pulley (2.5cm, 3.8cm and 5cm dia.)
Thermal Conductivity Apparatus, Lee?s

Thermal Conductivity Apparatus, Lee?s

For determining the thermal conductivity of bad conductors. Three copper discs 42mm diameter x 12mm thickness each drilled to support a thermometer. A 6V D.C. Electric heater with wires led out to 4mm sockets and clamped in a wooden frame by means of a plastic screw.
THERMOEMETR MAXIMUM AND MINIMUM

THERMOEMETR MAXIMUM AND MINIMUM

Range ?20? to 55?C x 1?C and ?10? to 120?F x 2?F, spirit and mercury filled, length approx. 204mm movement of mercury in the U-bend, consequent upon expansion or contraction of the spirit, forces steel indices along the bore. Readings are taken at lower end of indices, which are reset by magnet supplied mounted on anodizes aluminum scale on steel mount and white steel metal case.
THERMOEMETR MAXIMUM AND MINIMUM

THERMOEMETR MAXIMUM AND MINIMUM

Six?s pattern, double scale, range -20? to 60?C x 1?C and ?20? to 120?F x 2?F, spirit and mercury filled. Mounted on plastic scale on base with magnet for resetting with mounting bracket for wall mounting.
THERMOEMETR POCKET

THERMOEMETR POCKET

Mercury filled, white enameled back, in plastic case with pocket clip. Thermometer cap may be inserted into case to extend reach. Range ?10? to 110?C x 1?C length 155mm.
THERMOMETER CLINICAL

THERMOMETER CLINICAL

Screen-printed stem, enameled back. Range 94?F to 108?F or 35?C to 43?C in plastic case with cap.
THERMOMETER COMBINED

THERMOMETER COMBINED

Range 0 to 110?C x 1/1?C & 0 to 220?F x 2/1?. You can see in Fahrenheit & Celsius both at the same time
THERMOMETER RED SPIRIT

THERMOMETER RED SPIRIT

Total Length approx. 300mm
THERMOMETER WALL

THERMOMETER WALL

Wall mounting, double scale, mounted on polished wooden base with screen-printed marking and figures. Range -20? to 55?C x 1?C and 0? to 130? x 2?F, red spirit filled, overall dimensions approx. 500x90mm.
THERMOMETRES MERCURY

THERMOMETRES MERCURY

Mercury in glass, with white enameled back. 5/7 mm dia. with reinforced bulbs. Packed in cardboard case. Length 300mm approx.
Ticker Tape Timer AC

Ticker Tape Timer AC

For the measurement of speed and acceleration. It operates on 12V AC and is safe for students. Paper tape, drawn through guides, is struck by a dotting screw carried on the armature. On wooden base with 4 mm sockets. Includes one roll of tape and 12 carbon discs.

Transformer:
Suitable for RM5031 Ticker Tape
Timer AC. Input 220V AC., Output 12V AC.

Ticker Tape Timer DC
This is operated by two dry cell batteries (not included). It produces 30 to 50 dots per second. The wooden base provides stability. Includes one roll of tape and 12 carbon discs.

Ticker Tape:
Roll of paper tape width approx.10mm.

Carbon Discs:
Pack of 48.

TICKER TAPE TIMER- a. c.

TICKER TAPE TIMER- a. c.

Operates on 12 V a. c. The timer employs electromagnet, with spring loaded armature which vibrates above a support table for a carbon paper disc. Paper tape, drawn through guides on the table, is struck by a dotting screw carried on the armature. Additional with extra guides accommodate 4.5mm external diameter rubber tubing for the ?Pearls in air? water drop experiment. The peg on the support table is movable to allow maximum use of carbon paper discs. Supplied with 300m roll of tape and carbon paper discs.
The ticker tape timer produces dots spaced at 1/50 or 1/60s intervals depending on main frequency.
TICKER TIMER TAPE

TICKER TIMER TAPE

Width 9.5mm, in rolls approx. 300meter long.
TORSION APPARATUS (HORIZONTAL)

TORSION APPARATUS (HORIZONTAL)

Searle?s pattern, two cast iron feet each with 3 through holes and grub securing screws, separated by 2 supporting rods approximately 700mm long one of which is graduated incms and mms, wheel 165mm dia, over groove moving in ball bearings, mounted on front foot, with spindle carrying split collect chuck for holding one end of test rod 55cms long 5mm dia, other end supported with clamping block through rear foot. With two aluminium scales graduated 30-0-30 in single degrees, mounted on pillar supports, which are adjustable along the rod, two pointers with clamp for attaching to specimen, one each of Brass and Steel rods, cord and hook for carrying masses but w/o weights.
TORSION APPARATUS VERTICAL

TORSION APPARATUS VERTICAL

It consists of a heavy mild steel frame mounted on a heavy tri-leg cast iron base. Upper end of the rod 900mm length and 5mm dia under test is clamped by a 3-jaw chuck and the lower and is clamped, into the axis of a torsion couple three metal circular scale graduated in single degrees which are free to slide on one of the graduated rod can be clamped at any position. Three pointers for clamping to the test rod are provided. Strings to apply the deflecting couple and having pans at their free and pass over bearing pulleys which are clamped to the uprights without weights.
TRAIN OF GEAR WHEELS

TRAIN OF GEAR WHEELS

For demonstrating the relationship between velocity ratio and number of teeth. Three gear wheels, approximately 60, 80, 110 pitch dia, with 12, 18, 24 teeth respectively, each mounted on wooden board provided with grooves for adjusting gear wheels by changing belt.
Overall dimensions approximately 240 x 260 x 300mm.
Triple Balance

Triple Balance

A single pan, low form balance that has three notched beams with center indicating sliding masses giving total weighing capacity of 610g. The capacity can be extended to 2610g with supplementary masses. Spring loaded zero adjust compensator and magnetic damping are provided. Stainless steel pan is of 150mm diameter.

Beams: 0-500g x 100g
0-100g x 10g
0-10g x 0.1g
-01 Set of Supplementary Masses to extend the range of the
balance to 2610g capacity.
-02 Support Rod for under weighing facility.
-03 Un-calibrated Tare Beam of capacity 200g.

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TROLLEY RUNWAY

TROLLEY RUNWAY

This is designed to provide a smooth flat easily inclinable surface for dynamics experiments using trolleys. Wrap resistant wood board, 2450 x 300 x 20mm thick, reinforced with metal angle side rails. Complete with six feet for leveling or inclining the runway, two fixed centrally and two at each end adjustable for height.
TUBULAR SPRING SCALES

TUBULAR SPRING SCALES

Dual scale spring scales to measure force (Newton) and mass (grams). Clear acrylic body.
Easy zero adjustment and color coded.

TURNTABLE/FLYWHEEL

TURNTABLE/FLYWHEEL

The apparatus consist of a circular wooden top 300mm diameter and 12mm thick attached to a strong ball-bearing spindle provided with a driving pulley, 80mm diameter and a support rod for mounting in a large tripod base or boss head. Holes are drilled in the table and bolts are supplied for securing the various interchangeable accessories.
Universal Hydrometer

Universal Hydrometer

This hydrometer has a specific gravity range of 0.7000 to 2.000. All glass.
VACUUM GAUGE (MANOMETER) BENNERT

VACUUM GAUGE (MANOMETER) BENNERT

To be used as differential manometer, pressure gauge and vacuum gauge, close tube fitted with. Mercury with stopcock and sliding mirror scale graduated 200-0-200 x 2mm on wooden stand.
VECTOR FORCE APPARATUS

VECTOR FORCE APPARATUS

For verifying the laws of composition and resolution of forces, comprising a wooden table 30cm dia. Its edges spanided scale graduated 360?, on heavy vertical support rod and tripod base. Complete with 1 ring, 4 sliding clamp pulleys, 4 weight hangers and 12 weights (2 x 10g, 2 X 20g 4 x 50g 4 x 100g).
VENTURI APPARATUS

VENTURI APPARATUS

For demonstrating Bernoullis principle that any restriction in fluid flow results in increased speed and decreased pressure.

Comprised of borosilicate glass tube 18cm (7in) long and 18mm ( 3/4in) in diameter with a constriction in the centre and three vertical openings in different sections. Includes three glass manometer tubes and rubber connecting tubes for measuring pressure at three locations. Ends are flared.

VERNIER CALIPER, DUAL SCALE

VERNIER CALIPER, DUAL SCALE

For inside and outside measurement in metric or English units. Ideal for learning precision measurement techniques by using the vernier principle.

Has metric scale to 12.5cm in 1mm steps and the 10 part vernier reads to 0.1mm. English scale is graduated to 5in in 1/16in spanisions and the 8 part vernier reads to 1/128in. Features a locking pin to secure readings and knurled thumbwheel permits fast, easy measuring. Beveled cross horns are useful for internal measurements. Made of plated steel and packed in a plastic case.

VERNIER CALIPER, DUAL SCALE, IMPROVED DESIGN

VERNIER CALIPER, DUAL SCALE, IMPROVED DESIGN

For inside, outside, step and depth measurement.

Has metric scale to 15cm in 1mm steps and the 10 part vernier reads to 0.1mm least count. English scale is graduated to 6in in 1/16in spanisions and the 8 part vernier reads to 1/128in least count. Verniers are adjustable and can be trued, if desired. Automatic cam locking device allows fine adjustment along the main scale. Made of plated steel and packed in a velvet lined case.

WALL BRACKET FOR VIBRATION NEEDLE

WALL BRACKET FOR VIBRATION NEEDLE

A heavy metal L shape strip with chuck nuts and two holes for fixing on the wall.
Water Pressure in All Directions

Water Pressure in All Directions

For demonstrating the principle that the pressure in a liquid is transmitted equally in all directions. Consists of a glass bulb approx 50mm diameter with a plunger.
WEIGHING SET

WEIGHING SET

Economical, approximate masses suitable for elementary studies on the concept of mass. Allows children to weigh objects from 10g to 1990g by 10g spanision. Supplied in a storage tray and comprising the following stamped masses: Steel (hexagonal)1x1kg, 1x500g, 1x200g. Brass(cylindrical) 2x100g, 1x50g, 1x20g, 2x10g.
WEIGHT BOXES, GENERAL PURPOSE

WEIGHT BOXES, GENERAL PURPOSE

For general laboratory work.

Include one of 1g, 5g, 10g, 50g, 100g, 500g, 1000g and two of 2g, 20g and 200g masses. Total number of masses supplied depends on the range chosen as indicated below.

Plated brass weights (masses) with knob in a wooden case having a hinged lid. Calibrated according to tolerances specified by International Organisation for Legal Metrology, Class M2. Fractional weights are not included.

Note: we can substitute two 10g masses with one 20g mass and two 50g masses with one 100g mass according to your requirement. We can quote and accept orders for other combinations of masses.

Weight Masses Set

Weight Masses Set

MS105.2-1 Steel Nickel Plated, 9pcs/Set
100g-1,50g-1,20g-1, 10g-2, 5g-1, 2gx2, 1g-1
MS105.2-2 Brass, Copper Plated, 9pcs/Set
1-100g, 1-50g, 1-20g, 2-10g, 1-5g, 2-2g, 1-1g
Weight Set, Slotted

Weight Set, Slotted

Brass, Copper plated, 10pcs/set, Specification:
1-10 gram, 2-20 gram, 1-50 gram, 5-100 gram, 1-500 gram. Weight rack included.
Weight Set, Slotted,

Weight Set, Slotted,

Brass, Copper Plated, Including Rack 1-500 gram, 2-200 gram, 1-100 gram, 1-50 gram, 2-20 gram, 1-10 gram
WEIGHTS (MASSES) FOR WEIGHT BOXES, SPARE

WEIGHTS (MASSES) FOR WEIGHT BOXES, SPARE

WHEEL AND AXLE COMPOUND

WHEEL AND AXLE COMPOUND

Made of cast aluminium alloy wheel 100mm dia axle 50mm and 25mm dia, mounted on adjustable steel cones in steel frame, mounted on a wooden board with 4 holes for wall mounting. Complete with 5 meter Nylon cord and steel hook.
Wheel on Axis

Wheel on Axis

Ball bearing, four coaxial pulley mounted on a single steel rod. Can be attached to any right-angle clamp.
WOODEN LEVER APPARATUS

WOODEN LEVER APPARATUS

One meter long with fulcrum lever is graduated in centimeters and is balanced on the fulcrum by a transverse groove cut midway in the length of the lever over knife-edge of the fulcrum without weights.
YOUNG'S MODULUS APPARATUS

YOUNG'S MODULUS APPARATUS

Searle’s pattern, spirit level mounted in two rectangular cast iron frame with one end resting on point of micrometer screw, fitted in one frame, the second end of spirit level pivoted in the second frame. The micrometer is provided with vertical scale 10mm on either side of the zero and Vernier reading 0.01mm, complete with ceiling bracket having two self centering chucks and tension weight. The apparatus is black stove enamel finish in nicely finished case.
YOUNG'S MODULUS APPARATUS

YOUNG'S MODULUS APPARATUS

Vernier pattern, for the experimental determination relationship between a load applied to a wire and the resulting extension. The apparatus consists of an engraved brass scale 100mm long and Vernier reading 0.1mm. Complete with tension weight but without load masses.
Young?s Modulus Apparatus

Young?s Modulus Apparatus

Consists of a brass scale 10cm long with vernier reading to 0.1mm and with V slide clamps. Includes ceiling attachment for wire, 5m long wire and a tension weight.
YOUNG?S MODULUS APPARATUS

YOUNG?S MODULUS APPARATUS

Searle?s pattern. The instrument consisting of two frames connected by a link. The frames are fitted with self centering chucks. An accurately graduated micrometer screw to read to 0.01mm is fitted on one frame. One end of a sensitive spirit level is pivoted to one of the frame, the other end rests on the points of a micrometer screw fitted in the other frame. The bubble of the level is adjusted to its zero mark and the reading of the micrometer observed. The load is then applied and by turning the micrometer screw the bubble is again adjusted to zero. The reading is observed and the difference between the reading gives the extension of the wire. Complete with chucks, ceiling attachment and tension weight. With case.
YOUNG?S MODULUS APPARATUS

YOUNG?S MODULUS APPARATUS

Simple form but efficient. Consist of a brass scale 10cms. long and vernier to read 1/10mm with V slides clamps, guides for wire ceiling attachment and tension weight.
Young?s Modulus Apparatus, Searle?s Pattern

Young?s Modulus Apparatus, Searle?s Pattern

This apparatus is capable of greater sensitivity and accuracy. It consists of two iron frames connected by a link. The frames are fitted with self centering chucks. An accuracy cut micrometer screw to read to 0.01mm and main scale of 0-10mm is fitted in one frame. One end of a sensitive spirit level is pivoted to one of the frames and the other end rests on the point of a micrometer screw fitted on the other frame.