. The launderer. A practical treatise on the management and the operation of a steam laundry . g-car linen, and all goods that absorb large quantitiesof moisture. It is an exceedingly simple machine forone so large, and is built on scientific principles thatgive it great drying caj^acity. Another machine which acts more as a dryer thanas a mangle is made with a series of steam-heated platesthrough which passes an endless apron to carry thegoods in contact with the large heated surface. Thefriction of the goods against the iron produces a verygood finish, which is desirable where a large quanti
. The launderer. A practical treatise on the management and the operation of a steam laundry . g-car linen, and all goods that absorb large quantitiesof moisture. It is an exceedingly simple machine forone so large, and is built on scientific principles thatgive it great drying caj^acity. Another machine which acts more as a dryer thanas a mangle is made with a series of steam-heated platesthrough which passes an endless apron to carry thegoods in contact with the large heated surface. Thefriction of the goods against the iron produces a verygood finish, which is desirable where a large quantityof bed linen is handled. Much thought and much experimenting have beengiven to the subject of material for covering mangledrums. Experience has taught that the best materialto use for this purpose is an all-wool fabric of goodabsorbent quality. Wool absorbs and evaporates mois-ture very rapidly, and for this reason it is much betterthan material made of cotton or a mixture of cottonand wool. The coarser the weave of the wool coveringthe better will it allow free evaporation. — o-tl —. — 342 — Too much covering shoiilJ not be put on the drums,as it will produce a thickness too great for the moistureto pass through. If the drums are padded and are toolarge in diameter, thej will crowd when in a concavesteam-chest and the goods will feed through only withdifficulty. Outside of the wool covering there shouldbe wound two or three thicknesses of good muslin inorder to give a smooth surface to iron on. There are mangles of more or less capacity whichare built with simply a large heated cylinder havingsmaller padded rolls running in contact with it. Thisclass of machine, of which an example is shown in , is made in all sizes, from one in which the ca-pacity is very limited, up to a machine which hasnearly the capacity of the largest mangles already de-scribed. The largest machines, in some instances, havean extra heated cylinder so arranged that the machinewill iron the
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