P730 Woodwork
Contents
Timber Technology
(a) Tree growth
(b) Parts of a tree
(c) Classification of trees
(d) Defects of timber
(e) Shrinkage and seasoning
(f) Conversion
(g) Preservation
(h) Properties of timber: color, texture, grain, elasticity, durability
Timber Mechanics
(a) Various manufactured timber beams
(b) Strength in beams. Maximum bending moment on beams with uniformly distributed load.
(c) Measurement of percentage of water content by weight.
(d) Classification of structure of timbers.
(e) Effects of grain direction.
Use of timber in furniture and building construction
(a) Selection of correct timber for different jobs.
(b) Importance of correct moisture in timber for different jobs.
(c) Special attention to design, joint, type of wood for outdoor jobs.
(d) Manufactured boards: blackboard, clipboard, etc.
(e) Simple door construction:
- (1) Ledged, lined and braced door
- (2) Framed door
- (3) Panel door
- (4) Flush door
(f) Garage doors: sliding and hinged doors.
(g) Windows: simple casement window.
(h) Roofs:
- (1) Couple-roof
- (2) Couple-close roof
- (3) Couple-close with suspended ceiling rafters
- (4) Collar roof
- (5) Double rafter roof
- (6) Trussed purlin roof
(i) Wood partition and wall cobalt.
(j) All types of domestic and public furniture
Design
Students should improve, finish and add some missing points to the given drawings. By practice, they should be able to design certain furniture from given data, e.g. given space in a particular place, directing maximum attention either towards the theoretical aspect, or towards the strength or economy.
Modern low coffee tables, modern easy chairs, modern and artistic newspaper racks, clothes hangers, nice looking modern cupboards and library cabinets
Wood Cutting Machinery
(a) Safety precautions in the workshop with each machine.
(b) Maintenance of machines.
Finishes
Polishing, varnishing, painting
