ISO woulfe's apparatus. 



VI. 



Improved Conjtru&ion of Woulfe's Apparatus, By W. B. 



To Mr. NICHOLSON. 

 SIR, 



Improvement in ll'VERY one who has been in the habit of ufing a Woulfe's 

 Woulfe's appa- apparatus, muft have experienced the difficulty of fixing the 

 tubes of communication, and the continual rifle of breaking 

 them. To obviate this inconvenience, I would fugged the 

 following mode of condru&ing the apparatus, which, if you 

 think any improvement upon the prefent method, cannot be 

 rendered more generally ufeful than by infertion in your 

 Journal. 



I am, Sir, 



Your very obedient humble fervant, 



W. B. 



Feb. 5, 1805. 



Fig. 1 reprefents one of the bottles. The bent tube, ABC, 

 being attached to the outfide of the bottle when both heated, 

 and entering it at C, may be made as flrong as is thought 

 confident with neatnefs. 



The part H B of the tube is of a conical form, fmall enough 

 at A to be inferted in a perforated cork. 



The fhort tube D E, on the oppofite fide, is alfo of a coni- 

 cal form, large enough at E to admit a perforated cork. 

 . The opening at F being intended for the tube of fafety. 



Fig. 2 reprefents the apparatus put together, the receiver 

 being added as of a convenient form for connecting with the 

 other vefTels. 



The fmall tube A B of one bottle, is inferted in the perfo- 

 rated cork fitted to the tube D E of the preceding one, and 

 the joinings fecured in the ufual way by luting. 



The tubes of fafety being firfl fecurely fixed, and the cork 

 clofely fitted in the tube D E, any number of bottles may be 

 fucceffively added, without the lead rifk of deranging thofe 

 that are already connected. 



Obfcrvation 





