Teacher's Handbook of Manual Training: Metal Work |
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Common terms and phrases
allowed anvil bars become Bending blade blast furnace bolted bottom boys examine brass brazing brittle callipers carbon cast iron Centre Punch chipping class a piece class examine Comprising:-Filing cooled copper countersinking cutting edge draw Drilling Machine Elicit Engineer's Square Explain fire firebrick firmly Flat File flux forge grooves Hacksaw handle hard hardened and tempered heat heavy type held hot metal inches jaws known lathe Lathe tools legs lesson proceeds Let the boys Let the class malleable melted Mild Steel mould piece of metal placed pliers prevent puddling furnace right angles rivet Screw Press Scribing Block secured shaft Shears or Chisel Show the boys SHOW the class sledge hammer soldering bit spelter spiegeleisen Straight-Edge surface plate swage taper Tell the class tested thread tongs tool steel tools and principles Tools required troughs tube tuyere various shapes Vice welding Wing Compasses wrench wrought iron zinc
Popular passages
Page 69 - Brazing is the joining together of two or more pieces of metal by means of a brass spelter or one of silver.
Page 25 - Explain that chisels vary in size and shape according to the purpose for which they are to be used.
Page 12 - ... pressed against it perpendicularly. A single rotary turn is then made, without altering the pressure, exposing a circle of derma but causing no bleeding. Three abrasions should be made, 1 inch apart. The virus is dropped on two of the abraded spots and rubbed in with a sterilized toothpick...
Page 85 - Explain to the class that to start the furnace, fire is put in at the bottom. It is then gradually filled with coke, and care is taken that it does not heat too rapidly, very little air being allowed to enter.
Page 50 - Pake is a rod of iron or steel, one end of which is formed into a handle, and the other end is flattened out and bent at right angles.
Page 89 - The iron or charge is put into the furnace through a cast iron door lined with firebrick ; this door can be raised or lowered by means of a chain and lever.
Page 47 - Rivets are made of brass, copper, iron and steel, according to the uses to which they are to be put. If a...
Page 8 - Hold the handle firmly in the centre of the palm of the right hand, with the thumb and index finger pointing along the handle, and the remaining fingers grasping it on the under side.