Fig. 202. Fig. 203. The screw thread for small bolts is represented by thick and thin lines, such as was shown in Figure 152, but in larger sizes; the angles of the thread also are drawn in, as in Figure 202, and the method of doing ... Read more of Screw Threads And Spirals at How to Draw.caInformational Site Network Informational


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342. To Prevent Fruit from Moulding

A layer of absorbent cotton laid
over the fruit in the mouth of the fruit cans is an excellent preventive
against the mould. If mould should form, it will cling to the cotton and
leave the fruit clean.

Next: 343. Linoleum or Oilcloth That is Cracked

Previous: 341. Uses for Old Envelopes

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