Work Bench Fittings And Appliances JSS1 Basic Technology Lesson Note

WORKBENCH FITTINGS & APPLIANCES

CONTENTS

            WORKBENCH

            WORK BENCH FITTINGS

            VICE

            BENCH STOP

            BENCH HOOK

            G-CLAMP

            SASH CLAMP

            F-CLAMP

WOODWORK BENCH

A woodwork bench is a platform on which the woodworkers perform their woodworkers activities.

The size of the woodwork bench is usually 2.0m by 0.80m by 0.90m. The center of the woodwork bench is always lower than the edges and this is called WELL.

The function of the well is to keep the tools needed during the woodwork activities. Being lower, tools cannot fall or roll onto the floor or on anyone’s feet.

WOODWORK BENCH FITTINGS

Woodwork bench fittings are the appliances fitted to the workbench before the commencement of any woodwork operation.

 EVALUATION QUESTIONS

1.         Define a workbench
2.         Describe and state the function of a well on a workbench
3.               Define woodwork bench fittings

 Workbench fittings include the following:

1.         BENCH  VICE
2.         BENCH STOP
3.         BENCH HOOK
4.         G-CLAMP
5.         SASH CLAMP
6.         F-CLAMP

BENCH VICE

The bench vice is made up of cast iron and possesses a release lever, which allows quick movement and grip. The vice is fixed to the side of the bench. It is used to hold the wood firmly to the side of the workbench.

BENCH STOP

This is a small strip of wood or metal fixed on top of the bench. It is used to prevent wood from slipping off the bench top during planning.

BENCH HOOK

This is used for holding jobs during cutting chiseling on the bench.

At the same, it protects the benchtop

G-CLAMP

This is a metal clamp used for clamping small jobs to the bench while sawing or chiseling. It can also be used to hold other small jobs together. It is called a G-clamp because of its shape, which is in the form of the letter “G. The clamp is ideal for holding small pieces of wood together by applying pressure at a specific point. Scrap wood should be placed between the jaws and the work to prevent it from leaving marks in the work.

SASH CLAMP

This is a larger clamp used for holding and drawing wood together when assembling or gluing work light and heavy-duty types are also available. When using a sash–clamp, a piece of waste wood should also be placed between the jaw will dig in and spoil the work.

F-CLAMP

This is used like the G-clamp. It has a quick action adjustment. The clamp in the form of the letter “F”

EVALUATION QUESTIONS

1.         State FIVE (5) examples of woodwork bench fittings
2.         Describe and state the function of the following (a) Bench (b) G –clamp
3.         What precautions must we take when using a sash clamp in the workshop?
4.         What is the major difference between an F-clamp and a sash clamp?