Legione Romana
Vuoi reagire a questo messaggio? Crea un account in pochi click o accedi per continuare.

Hermes Handbags

Andare in basso

Hermes Handbags  Empty Hermes Handbags

Messaggio  desktop20110425 Lun Mag 23, 2011 5:22 pm

flows may be produced by underground canals, which are extremely simple and probable.
We (hall conclude this article with the descriptions Account ot of some pneumatical machines or engHermesines which have not *°mf I'neuj been particularly noticed under their names in the for-TMatlcen" mer- volumes of this work. **'
Bellowi are of most extensive and important use; and it will be of service to describe such as are of uncommon construction and great power, sit for the great opera, tions in metallurgy.
le. This damper is introduced by a door in the front, which is then (hut. The whole is set on low pillars, so that its bottom may be a few inches from the floor of the room: it is usually placed in a corner, and the apartments are so disposed that their chimneys can be joined in stacks as with us.
Some straw or wood-stiavings are first Birkinburnt on the hearth at its farther end. This warms the air iHermes Birkinn the stove, and creates a determined current. The fuel i» then laid on the hearth close by the door, and pretty much piled up. It is now kindled ; and the current berhg already directed to the vent, there is no danger of any smoke coming out into the room. Effectually to prevent this, the door is shut, and the wicket P opened. The air supplied by this, being directed to the middle or bottom of the fuel, quickly kindles it, and the operation goes on. ,5.
The aim of this construction is very obvious. The Ai'm and flame and heated air arc retained as long as possible effect* of within the body of the stove by means of the long pas-j?"Vj°^ sages; and the narrownesHermes bagss of these pastages obliges the flame to come in contact with every particle of soot, so as to consume it completely, and thus convert the whole will give as much if not more heat than a pound of coal. And what sticks to our vents is very inconsiderable in comparison with what escapes unconsumed at the chimney top. In fires of green wood, peat, and some kinds of pit-coal, nearly f of the fHermes outletl is lost in this way; but in these stoves there is hardly ever any mark of soot to be seen; and even this small quantity is produced only after lighting the fires. The volatile inflammable matters are expelled from parts much heated indeed, but not so Hermes Handbagshot as to burn; and some of it charred or half-burnt cannot be any further consumed,bcing enveloped in flame and -iir already vitiated and unfit for combustion. But wher. the stove is well heated, and the current brisk, no part of the soot escapes the action of the air.
The hot air retained in this manner in the body of the stove is applied to its sides in a very extended surface. To increase this still more, the stove i9 made narrower from front to back in its upper part; a certain breadth is necessary below, that there may be room for fuel. If this breadth were preserved all the way up, much heat would be lost, because the heat communicated to the partitions of the stove doHermes Kellyes no good. By diminishing their breadth, the proportion of useful surface is increased. The whole body of the stove may be considered as a long pipe folded up, and its effect would be the greatest possible if it really were so; that is, if

desktop20110425
Miles gregarius
Miles gregarius

Numero di messaggi : 11
Data d'iscrizione : 21.05.11

Torna in alto Andare in basso

Torna in alto

- Argomenti simili

 
Permessi in questa sezione del forum:
Non puoi rispondere agli argomenti in questo forum.