Wheel and Axle

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of
   • - effort
   • - efficiency

Description

The PVC dual diameter wheel has an axle supported on simple pivots in a sturdy wall mounting bracket. Cords wound round the peripheries of the wheels carry load hangers for the load and effort. A set of weights is provided.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Wheel and Differential Axle

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Simple wheel or differential axle machine
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated values for simple wheel and differential axle machine
2. Determination of variation with load of
   
   
   • effort
   • efficiency
     
     
3. Limiting efficiency of the machine

Description

A PVC wheel of 190 mm diameter is integral with a differential axle of 114 and 38 mm diameters. The shaft runs in bronze bearings in a sturdy wall mounting bracket. The necessary cords and load hangers are provided and weights are included. An additional load hanger is supplied to enable the simple wheel and axle experiment htm2 to be performed

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Worm and Wheel Single Start, 30:1 Ratio

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of:
   
   
   • effort
   • friction
   • efficiency
     
     
3. Limiting efficiency of the machine

Description

This high quality example of a steel worm and phosphor bronze wheel is built on a substantial wall mounted base. Both worm and wheel have integral cord drums with cords and load hangers to provide torque. The velocity ratio of 30:1 is achieved by a single start worm.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Worm and Wheel 2 Start, 15:1 Ratio

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of:
   
   
   • effort
   • friction
   • efficiency
     
     
3. Limiting efficiency of the machine

Description

This high quality example of a steel worm and phosphor bronze wheel is built on a substantial wall mounted base. Both worm and wheel have integral cord drums with cords and load hangers to provide torque. The velocity ratio of 15:1 is achieved by a two start worm.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Simple Screw Jack

Features

• Low cost, effective teaching
• Self-contained
• Bench mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Overhauling
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of:
   
   
   • 1. effort
   • 2. friction
   • 3. efficiency
     
     
3. Limiting efficiency of the machine

Description

This simple screw jack is a 220 mm diameter turntable fitted with a 30 mm x 6 mm pitch screw is supported in a heavy cast iron base. The apparatus is stood on a firm bench and a cord and weight hanger are wound round the rim of the turntable and hung over the pulley. The pulley runs on ball bearings to reduce friction to a minimum.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Wall Mounted Screw Jack

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Comparative efficiency of square and
  Vee form threads
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of:
   
   
   • effort
   • friction
   • efficiency
     
     
3. Limiting efficiency of the machine
4. Comparison of relative efficiency of Vee and Square thread forms

Description

The experimental screw jack mechanism is built on a sturdy wall bracket

The shaft of the 200mm diameter turntable has both square and Vee form threads of 24mm x 3mm pitch. The load hanger can be suspended from a yoke from either of the nuts. Torque is applied to the turntable through two "effort" hangers, and can be arranged to either lift or lower the load.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Efficiency of Screw Threads

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Introduction to simple machines
• Determination of velocity ratio mechanical advantage and efficiency
• Comparative efficiency of square and
  Vee form threads
• Three year warranty

Range of Experiments

1. Experimental determination of velocity ratio and comparison with calculated value
2. Determination of variation with load of:
   • effort
   • friction
   • efficiency
3. Limiting efficiency of the machine
4. Comparison of relative efficiency of Vee and Square thread forms

Description

This is a simple wall mounted apparatus supplied with three interchangeable screw and nut assemblies. Load is applied to a weight hanger attached directly to the screw and the effort torque is applied by a weighted hanger and cord passing over a low friction ball bearing pulley.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Cam and Follower Apparatus

Features

• Low cost, effective teaching
• Self-contained
• Bench mounted
• Determines displacement diagrams
• Enables velocity and acceleration
  diagrams to be derived
• Many types of cam motion can be studied
• Four follower types available
• Three year warranty

Range of Experiments

1. To determine a graph of follower displacement against angular rotation of the cam
2. To derive the velocity and acceleration diagrams, and determine the maximum acceleration of the follower
   
3. To assess the effect of different cams and followers
4. To compare experimental and calculated results

Description

The displacement of an edge cam as it rotates through 360° is measured using a dial gauge. The angular position of the cam is shown on a graduated scale. A tangent cam with a 25mm diameter follower are supplied as standard, and other cams and followers are available as optional ancilliaries, as shown in the specifications.

A variety of set ups is provided by a knife edge or roller follower in combination with a tangent cam, a contant acceleration cam or a simple harmonic motion cam.

A set of optional extras htm88j provides a flat follower, lever and offset fittings and two more cams (one eccentrically pivoted and one for uniform motion).

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Flywheel Apparatus

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Demonstrates: 
  a) Second Law of Motion 
  b) Energy storage
• Three year warranty

Range of Experiments

1. To verify the second law of motion applied to a flywheel, ie the relationship between torque and angular accerleration
2. To compare experimental and calculated moments of inertia of a disc 
   
3. To study the energy transformations and to demonstrate that a flywheel can be used to store energy

Description

A steel disc 250 mm diameter and 30 mm thick is mounted on a shaft running in ball bearings housed on a substantial wall bracket. A mark on the flywheel and a pointer on the bracket enable the revolutions to be counted and timed with the stop watch supplied. A cord, load hanger and set of weights are provided.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Small Flywheel Apparatus

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Demonstrates: 
  a) Second Law of Motion 
  b) Energy storage
• Three year warranty

Range of Experiments

1. To verify the second law of motion applied to a flywheel, ie the relationship between torque and angular accerleration
2. To compare experimental and calculated moments of inertia of a disc 
   
3. To study the energy transformations and to demonstrate that a flywheel can be used to store energy

Description

A steel disc 150 mm diameter and 20 mm thick is mounted on a shaft running in conical bearings housed on a substantial wall bracket. A mark on the flywheel and a pointer on the bracket enable the revolutions to be counted and timed with the stop watch supplied. A cord, load hanger and set of weights are provided.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Comprehensive Flywheel Apparatus

Features

• Low cost, effective teaching
• Self-contained
• Wall mounted
• Demonstrates: 
  a) Second Law of Motion 
  b) Energy storage
• Three year warranty

Range of Experiments

1. To verify the second law of motion applied to a flywheel, ie the relationship between torque and angular accerleration
2. To compare experimental and calculated moments of inertia of a disc 
   
3. To study the energy transformations and to demonstrate that a flywheel can be used to store energy
4. To observe the effect of a change in moment of inertia

Description

A steel disc 250 mm diameter and 30 mm thick is mounted on a shaft running in needle roller bearings housed on a substantial wall bracket. A mark on the flywheel and a pointer on the bracket enable the revolutions to be counted and timed with the stop watch supplied. A cord, load hanger and set of weights are provided.

The moment of inertia can be altered by the addition of a disc and a ring of similar masses. A vibrating arm provides an accurate means of measuring acceleration, drawing a simple harmonic curve at a frequency of 5Hz onto a strip of paper attached to the flywheel periphery. This is actuated automatically as the flywheel starts to rotate.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.

  Spur Gear Lifting Machine

Features

• Low cost, effective teaching
• Self-contained
• Bench mounted
• Two or three gear train
• Single or double purchase lift
• Determination of mechanical advantage,
  velocity ratio and limiting efficiency
• Three year warranty

  Model Gyroscope

Features

• Low cost, effective teaching
• Aids understanding of gyroscopic
  precession through "hands on"
  involvement
• High visual impact
• Three year warranty

Range of Experiments

1. To demonstrate visually precession and stability of a gyroscope, and to assess the effect of direction of spin and speed of rotation

Description

It is a model gyroscope which is put into motion by pulling a cord wrapped around its shaft. It can be mounted on a counter weighted arm, stood on a vertical pointed column, or on a sloping wire. All basic gyroscopic phenomena can be demonstrated convincingly with this simple equipment.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.