part 2

• Nails – are used in holding pieces together in a joint.
• Common wire nails large flat heads. The shortest is 1” long while the longest called spike 6” long
• Finishing nail – have small heads and slimmer bodies than the common wire nails
• Brad – is a short finishing nail. The shortest is ¼”. It is used for nailing crating boxes
• Box nail – have flat broad heads and slim bodies
• Casing nail – has cone-shape heads and are used for nailing interior trims
• Tacks – have flat broad heads with square short bodies. 
• Hinges

  – are used principally to attach swinging shutters of cabinets, lids of chest and doors
• Butt hinge – are used for quite a number of cabinet works
• Chest hinge – supports chest lids. It is a butt hinge with one leaf bent at right angles in the cente
• Pivot or pin hinge – made of two flat, narrow, rectangular pieces of iron, one of them provided

  with pin which fit into a hole in the other.
• Double acting hinge – has three knuckles and can open both ways.
• Continuous or piano hinge – has long, but narrow leaves. It is another butt hinge
• Cupboard hinge – has one leaf that looks like a leaf of a butt hinge which is fastened to the

  framework of the cupboard while the other is offset or vent over the edge of the door and shaped.
• Strap hinge – has long tapered leaves 
• T – hinge – has one leaf that looks like a butt hinge and the other like a strap hinge.
• Hinge hasp – is made of two parts – a hinge and a piece of square plate to which a heavy wire loopis riveted.The other leaf, which folds over the screwed leaf is provided with a slot that fits over the loopwire
• Spring hinge – is used in light doors which close by itself when opened and released.
• Caster – used on heavy pieces of furniture to transfer them easily from one place to another by simply pushing them
• Glides – are used instead of casters. They are made of hardened polished, cup-formed pieces of steel, provided with steel points that are fastened to the legs of the furniture by simply driving them with a hammer.
• Screws – are superior to nails in fastening wood
• Screw eyes – has a loop on one end instead of a head. It is used for hanging frames and other 

  similar articles.
• Screw hook – has an end that is shaped like question mark, instead of a loop or head.
• Cup hooks – looks like hook screws with inverted cup like parts near the threads.
• Bolts – holds stronger than screws and nails and are therefore used where great strength is required.
• If two wooden parts are joined together at an angle, the result is called a joint
• If these parts are joined end-to-end, the result is called a splice.
• MACHINE DRAWING

   – a representation of the different parts or parts of a machine.
• Design Layout – is drawn from various sketches made in the first steps of the design process A design layout is not usually dimensioned, except for general overall dimensions.
• Assembly drawing – illustrates how a product is assembled when completed.
• Subassembly drawing – is composed of two or more parts permanently fastened togethe
• Detail drawing – every part must have its own fully dimensioned detail drawing, with its own drawing number and title block
• Purchased parts – are not drawn but are simply called-out on the assembly drawing
• Modified purchased parts – a purchased parts that needs to be modified,
• Gear – transmit or transfer rotary motion from one machine part to another and where necessary reduce or increase the revolution per minute of a shaft
• Spur gear – the most commonly used gear. It is cylindrical in form, with teeth that are cut straight across the face of the gear. All teeth are parallel to the axis of the shaft. The spur gear is usually considered the driven gear.
• Pinion gear – is exactly like a spur gear, but it is usually smaller and has fewer teeth. The pinion gear is normally considered the river gear.
• Rack gear – is a type of spur gear, but its teeth are in straight line or flat instead of in a cylindrical form. It is used to transfer circular motion into straight line motion.
• Ring gear – it is similar to the spur, pinion and rack gear, except that the teeth are internal.
• Bevel gear – is cone shaped in form with straight teeth that are on an angle with the axis of the shaft; it is used to transmit power and motion between intersecting shafts that are at a 90 degree to each other.