Pyrotechny

SIEVES.

Reading edition

2. Now with regard to SIEVES: you will require two of these, with brass-wire bottoms; one of the fineness of twenty meshes to the inch for mixing, which, for distinction’s sake, I will call the mixer; the other of forty or fifty meshes to the inch for sifting, and to which I shall refer as the sifter. These sieves are made with a receiver and a top, so that by their means you can sift or mix any compositions, however subtle or dusty may be their nature, without the slightest inconvenience or annoyance. I may as well here mention that I use the 20-mesh mixer for sifting the coarse charcoal employed in my rocket compositions, but all other sifting is done by the 40-mesh sifter. The size of those which I use is about six inches in diameter, and I think you will find this large enough for every purpose, as you will not be likely to want to mix or sift any very large batches of composition at a time. These sieves, made of any size or design that you please, may be procured of Mr. Darby, 98, Regent Street, Lambeth, London, at whose shop you will also find many other handy little articles, such as horn or copper scoops, spatulas, &c.

Fig. 34. Fig. 35. Fig. 37. Fig. 38. Fig. 39. Fig. 40. Fig. 44. Fig. 45. Fig. 46.