Table.—Weight of Sheet Lead.
| Inside Diameter | 3⁄8 | 1⁄2 | 5⁄8 | 3⁄4 | 1 | 11⁄4 | 11⁄2 | 13⁄4 | 2 |
|---|---|---|---|---|---|---|---|---|---|
| AAA, weight per foot, lbs., oz. | 2- 8 | 3- 0 | 3- 8 | 4-12 | 6- 0 | — | — | — | — |
| AA, „ „ „ | 1- 8 | 2- 0 | 2-12 | 3-12 | 4-12 | 6- 0 | 8- 0 | 8- 8 | 9- 0 |
| A, „ „ „ | 1- 4 | 1-12 | 2- 8 | 3- 0 | 4- 3 | 4-12 | 6- 8 | 6- 8 | 7- 0 |
| B, „ „ „ | 1- 4 | 1- 4 | 2- 0 | 2- 4 | 3- 4 | 3-12 | 5- 0 | 5- 0 | 6- 0 |
| C, „ „ „ | -10 | 1- 0 | 1- 8 | 1-12 | 2- 8 | 3- 0 | 4- 4 | 4- 0 | 4-12 |
| D, „ „ „ | - 7 | -12 | 1- 0 | 1- 4 | 2- 0 | 2- 8 | 3- 8 | — | — |
| E, „ „ „ | — | - 9 | -12 | 1- 0 | 1-10 | 2- 0 | 3- 0 | — | — |
Sheet lead is not the sameweight, bulk for bulk, owingto difference in organicformation, | |||||
| but a cubic footmay be said to weigh | 709 | lbs. | |||
| A square foot | 1″ | thick, | 59 | „ | |
| „ „ „ | 1⁄8″ | „ | 71⁄2 | „ | |
| „ „ „ | 1⁄10″ | „ | 6 | „ | |
| „ „ „ | 1⁄12″ | „ | 5 | „ | |
| „ „ „ | 1⁄15″ | „ | 4 | „ | |
| „ „ „ | 1⁄20″ | „ | 3 | „ | |
Sheet lead is sometimes made as thin as writing paper.
Plumber’s Solder.
Rule for making.—Take 100 lbs. good old lead or lead cuttings, run it down thoroughly, stir it up and take off all dirt or dross: then take 50 lbs. pure tin, let this run down, and when nearly all is melted and is a little cooler throw in 1⁄2 lb. of black rosin, and well stir the lot up. Last bring up the heat to 600 degrees which may be known by the burning of a bit of newspaper put in the pot. The solder is now hot enough and should be well stirred and then run into moulds.
PLUMBER’S TOOLS.
The processes of lead working are executed by manual dexterity acquired by long practice, and to do the work properly requires many special tools. Some of these are used in common with other departments of mechanics, but are none the less necessary in lead working.