Category: Engineering & Technology
"Yes, out of sheet copper in my room last night. That's the way I spend my evenings. And such fun as it is! I enjoy every minute of the time. Mother says I'd work all night if she didn't stop me.
The twisting is done best while the iron is cold. If done while the iron is hot great care must be taken to check up when the lines begin to run too close together. Take a bar o...
14. Part 14_To temper the blade:_ The blade is tempered by heating it on a coke fire. Place the back of the blade down, on a piece of flat iron. The iron will heat red hot. The iron under...
13. Part 13_Third method:_ Take a piece of pipe, length and size desired. Heat one end and upset it, enlarging and thickening it slightly. Cut a round iron plug to fit this end tightly. He...
12. Part 12Set screws are made of soft metal, but the points must be hardened to resist the wear. This is done by heating the set screws red hot, then sticking the point into the cyanide u...
5. Part 5File up all open parts so that the joints will be at right angles to the hinge. Do this carefully or else they will not swing true when hinged together. Use the cut hinge to mea...
10. Part 10Most smiths use the edge of the anvil for making scarfs. Place the edge of the metal, after it has been upset, on the edge of the anvil and strike down on the top with a hammer...
6. Part 6Take two pieces of 5 × 5/16 ins. square; file into shape according to the design. Bind the handles on the body of the vase. Place a little silver solder wherever the handles tou...
3. Part 3_Directions:_ Take the 7 × 7-in. piece of copper and draw a 7-in. circle. With the dividers set 1-1/4 in., using the same centre, describe a circle. This outlines the 2-1/2-in....
8. Part 8_The piece in place for firing:_ It is usually best to light the oven before you begin to place the enamel on the work to be fired. The furnace heats up in the meantime. Place t...
11. Part 11_Directions:_ The end of this piece of stock is bent around a drift pin as shown in the drawing and welded along the dotted lines. This is done by scarfing the end of the bar in...
4. Part 4The lid is rounded in the same way as the bottom piece was. There is some shaping to be done on the top of the lid. The picture here shows that plainly. On the inside of the lid...
2. Part 2_The value of the mould:_ It may seem to you like a lot of work to make a mould just for this round tray, but it can be used many times for making this kind of tray and also for...
9. Part 9You know now all the tools needed to equip a shop. I want to tell you about the fuels, such as coal and charcoal, which you will use, and something about pig iron and wrought ir...
7. Part 7_To put the staple and hook together:_ Drill a 1/16-in. hole in the staple very close to the top. Drill one in the flat shank of the pin also close to the top. (See sketch.)
1. Part 1"Yes, out of sheet copper in my room last night. That's the way I spend my evenings. And such fun as it is! I enjoy every minute of the time. Mother says I'd work all night if s...
16. Part 16_Directions:_ Flatten one end of each piece of the three pieces, 5/16 × 20 in., 2 pieces of 5/16 × 9 in. Weld these three together. Weld the 5/16 × 7 in. piece to the three piec...