'?'.^ 



JOURNAL 



OF 



NATURAL PHILOSOPHY. CHEMISTRY, 



A^iTd 



THE ARTS. 



SUPPLEMENT TO VOL, XXIX, 



ARTICLE L 



Method of assisting the Escape of Pef^sons^ and the Re* 

 moval of Property from Houses on Fire: hy Mr, Joun 

 Davis, iVo. 7, John Street^ Spit aljie Ids*, 



SIR, 



1 BEG you will hate the goodness to lay before the So- Machinefbrsav- 



cictyof Arts, &c. a machine, which I have invented, for "^g P^^^^"^ ^J^*^ 



•' ' ' ' property frgm 



more effectually saving persons and property from fire. fire. 



It appearing to me a desirable object, that the public 

 should be in possession of an apparatus better adapted for 

 the above purpose than any now in use, I have endeavoured 

 to strike out an entire new plan of a machine calculated for 

 the use of a parish, which can be easily removed and ad- 

 justed to any window, with a convenient apparatus or box, 

 movable up or down, so as to receive persons or property. 

 I have completed such a machine, which has answered my • 



expectations, and been approved by several gentlemen who 

 have seen it in action. 



* Trans, of the Soc. of Arts, vol. xxviii, p. 175. Fifty guineas 

 were voted to Mr. Davis for this invention. 

 Vol. XXIX. — SuprLEMENX. Y The 



I 



