SECURITY AGAINST HOUSE-BREAKERS. 17/ 



V. 



Account of an Invention to secure the Vnnnels of D'wrs and 

 Windo-w Shutters from being cut out by Housp breakers. By 

 Mr, Joseph Davis, No. 14, Crescent, Kingsland Road*, 



Sir, 



T 



-"- HAVE for some time considered, that it would be of Desirable to 



great benefit to the public, if a plan could be adopted to pre- neiJoTd'oors 



vent the pannels of shutters or doors being cut out by house- or shutters 



breakers; and having tried a great number of experiments, I '"o'" '^emg eut 



have at length succeeded in accomplishing the one I have the 



honour of forwarding to the Society for the Encouragement 



of Arts, &c. 



This improvement consists in introducing tempered steel Method of ef* 

 wires through the pannels and stiles at the distance of three Acting this. 

 inches, thereby not only making a door or shutter far supe- 

 rior in strength, but calculated to defy the attempts of th,e 

 house-breaker in taking out a pannel. This improvement, 

 though so far superior to any hitherto known for appearance 

 and utility, will be attended with less expense. I have sub- 

 milted the above plan to Messrs. Paynters, Coleman street, 

 likefvi&e to Messrs. Moffat and Co. Paternoster row, and to 

 sev.eral gentlemen in that line of business, who all do me the 

 honour to say, that it far surpasses any thing of the kind, that 

 they have ever known or conceived, and that it will completely 

 answer the purpose. 



I have also sent the machine on which I bored the pannel, 

 conceiving it to be an additional recommendatoin ; with this 

 machine, a boy may with ease bore the shutters, Sec, which 

 otherwise might be difficult for a man to accomplish.— rl have 

 the pleasure most respectfully to subscribe royself, 



Sir, 



your very humble servant, 



JOSEPH DAVIS. 



• f TransactiQns of the Society of Arts, vol. XXV, p. 101, Ten Gui- 

 neas were voted to Mr Da-vis for this invention. 



Vol. XXL— Nov. 1808. N Certi- 



