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tinct from the other, although the gases from the two pass finally to the same chimney, which carries the smoke to a height (200 feet) sufficient to eliminate any objectionable odor.
It may be of interest to note the results of tests made upon a lot of rubbish. In a certain run of ten hours, during which a total weight of 102,531 pounds of rubbish was used, the average horse-power developed was 232.7. One pound of rubbish fur
STOKERS AT WORK. nishes sufficient heat to
Ramming small rubbish into the incinerating furnace. evaporate 1.6 pounds of water; or 21.6 pounds rubbish fur- be fixed in the usual way. The room in nish one horse-power. An analysis which the incinerator and boiler plant are of the rubbish used, showed that 43.8 placed is entirely separated from the dyper cent was combustible material, and namo room. In the dynamo room are 7.4 per cent ash, while 48.8 per cent placed all the apparatus for using the was taken by pickers or discarded as steam, also the steam auxiliaries, and non-combustible. Even the ashes are this room is in charge of the Department made use of, the American Tobacco of Bridges. Company taking them for fertilizer. Strong batteries are being arranged
Under each boiler, entirely distant for, in which to store the electricity genfrom the main incinerator furnace, is erated in the daytime to help out during placed an auxiliary furnace, in which the night. The object of this is to be bulky matter may be burned, or coal may able to run the big furnaces 24 hours a be used in emergency. Thus, when the day and use most of the electricity at proper dampers are closed, boilers may night.
The plant cost $34,000 for the incinerator, and $47,400 for boilers and electric generator. It won't take many months to cover the expense of equipping this valuable plant, for, besides saving that $10,000 a year previously expended in disposing of the city's rubbish, there will be the doing away with the enormous coal bill contracted every year for the lighting of the Williamsburg bridge and vicinity. It is a profitable venture and one which other cities would do well to follow.
Rooms That Heat Themselves
By F. C. Perkins
PEN fire places, stoves, steam, people who can afford luxuries, with hot water and even electric furniture and fittings which will make radiators—all are out of date. special heating apparatus unnecessary,
C. Herrgott, a French inventor, even in the coldest weather. At his facproposes to supply the residences of tory in Valdoie, near Belfort, France, M.
Herrgott is making rugs and carpets, curtains, hangings and other so-called thermopile fabrics, which, when properly connected with a supply of electric current, will keep an apartment at almost any desired temperature.
In appearance and texture the electricheating rugs can hardly be distinguished from those of ordinary manufacture. They are woven of wool and the other usual materials, about an invisible and finely divided skeleton of specially prepared metallic threads, which is autoresistant, exactly like an incandescent electric light filament. These threads are very supple, do not buck': in weaving and present a very large heating surface in proportion to their small diameter. All the fabrics are woven so as to produce a fixed degree of temperature from a given current and there is no danger, whatever, of their being destroyed or even injured by overheating.
ELECTRIC HEATING GARMENTS.
The advantages of this new system of heating over any other in use are many. It can be used wherever incandescent lights are in use. There is no smoke, no combustion; no gaseous by-products are thrown off ; it creates neither dust nor odor; requires neither fuel, reservoir, or special apparatus. It does not consume oxygen from the air and, spread out flat on the floor, one of the thermopile rugs, for instance, furnishes a mild, steady and permanent source of heat, evenly distributed over a very large surface. The feet of persons occupying a room heated in this way will always be warm and their heads cool.
For bedroom use the thermopile fabrics are made up into bed comforts, chair backs, foot warmers and even nightgowns.
The system is said not to be especially expensive when it is considered that it instantly transforms into heat all the elec
Electric Heating Bandages. tricity it receives and that the instant the electric current is shut off the cost of threads and have been found to be very operation entirely ceases.
efficacious in cases of rheumatism and The electric carpets are made so as to other diseases in which a steady applicagive from 85 to 95 degrees of heat above tion of heat is prescribed. the surrounding atmosphere, while cover- The mean consumption of electricity lets and other articles for use in bed for the electric fabrics is as follows, derooms give but 70 to 80 degrees. They grees Fahrenheit above the surrounding can be made for any desired temperature, temperature being given in dry calm air but those stated have been found to be and by square meter of the fabric: the most generally desirable. For medi- Oriental Gobelin moquette carpets in cal use, coverings for the backs of chairs, offices and private rooms give 45° shawls and bandages of any desired Fahrenheit per 1-10th kilowatt or 4-10ths shape are woven from the electro-thermic kilowatt for 85° to 95°F. The double thick
fabrics, such as carpets, incubators and filters, give heat of 50° F. per 1-10th kilowatt or 3-10ths kilowatt for 75° to 85° when bare, and when covered 60° F. per 1-10th kilowatt or 2-10ths kilowatt for 75° to 85°. The simple, light fabrics, such as coverlets and compresses, when bare, give heat 50° F. per 1-10th kilowattor 2-10ths kilowatt for 65° to 75° F, and, when covered, 70° F. per 1-10th
kilowatt or 1-10th kiloHEATING PLATE FOR DISHES.
wait for 65° to 75o.
Making My Lady's Ribbons
. By De Witt B. Lucas
3 N these days of high pres-modern ribbon mill in that city in which
sure work and large the complete evolution of the ribbon achievement in every line from the raw material to the finished of industry, it would be article could be intelligently followed. interesting to know how This particular mill produces forty
many shoppers give a sin- two thousand yards of ribbon a day—or gle second's thought to the many proc- more than twenty-five miles. It would esses through which an article of wear be interesting to go on and figure out or a piece of goods must go before it at the weekly, monthly and yearly output of last finds a temporary resting place on the this one mill, and those mathematically shelves and counters of the retail shop- inclined are at liberty to do so. keeper. Take the ribbon, for example. In order to achieve this enormous pro
Just how the weaving of ribbons orig- duction, nothing has been lost sight of. inated is not recorded. Like all other The windows are constructed so as to great industries of to-day, it probably throw no shadows upon the work. Even first had a beginning in very humble, un- the very air itself is filtered and washed pretentious environment, and steadily free from all impurities, and the temgrew in magnitude with the other de- perature is kept absolutely stationary all partments of the textile industry.
the year round. Electricity is the power Philadelphia is a great textile center, used to operate the looms and other maand it was not a difficult matter to find a chines, each loom being driven by an in
dividual motor under instant control of the operator.
There are two operations which the raw silk must undergo before it is ready for the weaver. . It must first be “thrown,” which consists in unwinding the delicate filiments from the cocoon, freeing them from the natural gum in which they are incased and spinning or twisting these filiments into "singles," three or four of
A CLOSE VIEW OF THE RIBBON LOOM. which are “thrown" together to form the silk thread. These ond of the preliminary operations before threads are then twisted together in op- weaving, and the thrown silk is usually posite directions to form the "end" of purchased in bulk and dyed to order. proper weight for the warp and filling. After the skeins are received from the
Some idea of the delicate fineness of dyer, they are opened up and placed upon these silk ends, which go to form the revolving reels from which the silk is warp and filling can be gained from the wound upon spools situated directly fact that one pound of this silk will reach above the reel. a distance of 146,286 yards.
When the silk is wound upon the Dyeing the thrown silk forms the sec- spools, it is ready for the second step in