18l6.] Patents lately Enrolled. < 



And, when in future vision"! bright If e'er some generous being glows 



His present ills a moment fly. With soothing thoughts his breast to fiU, 



The captive's chains his thouglit excite. His heart an instant pleasure knows. 



And bring his couniry's image nigh. But ah, he is an exile still ! 



PATENTS LATELY ENROLLED. 



To John Edv/ards, of Ccnterhury 

 JBinldings, Lambeth, Surrei/ ; for a 

 Method or Means of preventing Leak- 

 age hi Ships' Boats and other V^essels, 

 —August 15, 1815, 



MR. Edwards lays strips of coarse 

 brown paper, or canvas, soaked 

 jji tar or in water, proof cement, made 

 of gliie and linseed oil boiled together, 

 over the seams in the inside of the ship; 

 and then places battens or narrow planks 

 of wood, of about four inclies broad, and 

 about one inch, or one inch and a half, 

 thick, over the seams also, , and uails 

 them tight down with rag?^,ed nails. If 

 (says Mr. E.) the planks in the inside 

 of the ship were to be fastened to the 

 timbers wi(h ragged bolts, instead of 

 treenails, this method would prevent any 

 force of water, betw eeu the outside and 

 inside of the ship, from floating the in- 

 side planks from o?f the timber; and 

 would not only prevent leakage, but, by 

 being so finmly combined together, 

 would doubtless prevent a ship going to 

 pieces when stranded; though, in this 

 case the outside of tiie ship might re- 

 ceive damage, but the inside would not 

 be injured. This being admitted, the 

 ship, cai^go, crew, and passengers w ould 

 be sa"*ed. Should this method be ob- 

 jected to on account of rat-holes, the 

 inside of a ship may be lined with any 

 sheet metal, such as copper, iron, lead, 

 &.C, in the following' manner: nail the 

 sheets of metal close, edge to edge, or 

 edge over edge, and solder (he scams; 

 thereby effectually prcvcnfing rats from 

 materially injuring the sliip. Mr. Ed- 

 %vards also recommends tlic fastoiing 

 the inside planks to the limbers with 

 ragged bolts. 



To Jean Frederic Mauoi'ts df. Cha- 

 hWSES, for a Method of condiu-ting 

 Air, and rrgnlniiiig the T^mperatia'e, 

 ill Houses and other Jiuildings, and 

 warming and cooling either Air or Li- 

 quids.— Mcc. 5, 1815. 

 The Warijuis de Chabanncs declares 

 that his method of conducting the air, 

 and regulating the tempeniUire, in houses 

 and other buildings, is by produtiug a 

 current of air in (lues or chimnics, or 

 fiues, or other apertures, which is ef- 



fected by means of an air-pump or pneu- 

 matic, machine, forcing a current of air 

 through every winding, or even through 

 liquids, and also by means of a ventilator, 

 to be placed on the summit of the flue 

 or chimney, which by its peculiar form, 

 when t!)e wind blows upon it, causes a 

 draught upwards iu the flue or chimney, 

 more or less poweiful, according to the 

 action or strengtli of the wind, but most 

 powerful V. hen the wind acts strongest. 



No other method has hitiierto bcea 

 suggested for producing a current iu ^ 

 chimnics than that which is caused by 

 the rarefaction of the air in its passage 

 tlirof.gh the fne; tiic advantages of 

 v^hich metlrod are not only limited, but 

 a current so produced is subject to va- 

 riation as often as a change happens ia 

 the direction or force of the wind, or in 

 tlie temperature or density of the atmos- 

 phere ; Lut the patentee says his methoti 

 is not subject to these accidents, and is 

 hivariablc in its cli'ects, as the Hues of 

 chinuiics or of ventilators arc made to 

 terminate in a reservoir, ou which ho 

 lixes tin air-pump or pneumatic ma- 

 chine ; by working of which u draught 

 of air is produced in any proportion re- 

 quired, without being liable to varialion, 

 cither from the slate of the atmosphere 

 or the w ind ; and lofty chimnics, which 

 are made so only for the purpose of pro- 

 curing or increasing a draught, are ren- 

 dered unnecessary, as tiiis ajifiaratus 

 may be fixed either above or below, or , 

 upon a level, with the fire. In order to 

 annihilate eveiy nuisance or ill effect 

 arising from smoke, he j)laccs, in connec- 

 tion with the air-pmnp or pneiunalio 

 machine employed for furnaces, or any 

 kind of fii'O-jilaces, a cistern of water, 

 through which the smoke, being forced 

 by the action of the piuup, becomes 

 washed, and deposits in the w atcr all tho 

 sooty and noxious iiaiticies usually car- 

 ried into the atmosj)here. 



The principle of his ventilator is appli- 

 cable to the ventilation oi churches, jiri- 

 sons, hospitals, dwelling-houses, stables, 

 and other description of buildings re- 

 quiring pure air. 



Another purpose to which his air- 

 pump, anil method of warming and con- 

 ducting air, may be applied, is tlie heat- 

 4 inz 



