MACHINE FOR PAINTERS AND GLAZIERS. 1$ 



Sheets or wire of zinc may be purchased of Mr. Philip 

 George of Bristol, or of Messrs. Harvy and Golden, 98, 

 Iloundsditch, London: Of whom may also be had, vessels 

 and utensils of any form. They likewise undertake the roof- 

 ing of houses, or sheathing vessels, with zinc. 



By giving the above a place in your much esteemed Journal, 

 vou will much oblige 



Your obedient servant, 



CHARLES SYLVESTER. 



P. S. I observed some time ago in your Journal, experi- 

 ments by Mr. Davy on the subject of the production of the 

 muriatic acid and fixed alkali by galvanism, in which some of 

 my former experiments were alluded to. I do not think Mr. 

 Davy is decisive on the subject, and have not a doubt of very- 

 soon confirming all that I have previously asserted. 



Sh<> fuld, Nov. 20, 1807. 



III. 



Description of Mr. Davis's improved Machine for Faint ers 

 and Glaziers'*, 



T 



HE frequent accidents which happen to painters and Machine for 



glaziers, from the unsteadiness of their machines, and the preventing ac- 

 to . ,._.,. .11 cidents to pam- 



cunsequent misery brought upon their families, stimulated te rs and gl*- 



Mr. Joseph Davis, of the Crescent, Kingsland Road, to en- ziers » 



deavour at their improvement. The result was the machine 



delineated in plate I, which may be made perfectly firm and 



secure, without occasioning any injury to the wainscoting or 



paint. In those cases however, where the bottoms of the 



windows are flush with the floor, as is usual in the best 



apartments of modern houses, neither the common machine, 



nor this with the improvement intended for general use, can 



l>e applied : but Mr. Davis has contrived an additional piece 



$o be used on such occasions, which renders it equally secure. 



* From the Trans, of the Society of Arts for 1806, p. 138. 



