RAW-SILK. 



197 



No. 3. 



Explanation of the full-sized Sheldon Model of 

 the new Pottery Ghye Apparatus for Spinning 

 Raw -Silk, composed in December 1829, hy Mr, 

 Colin Shakespear, Resident at Soonamooky. 



(L.) 



The furnace-stove and ash-pit, resembling a Explanation 



in . , , . of pottery glije 



large nower-pot in a deep stand, setting one on Apparatus, 

 the other, are of substantial well-burnt pottery, 

 closely cased in bricks moulded to their form, 

 surrounded by others of a concave shape, forming 

 the circular smoke-flue and rest of the round 

 earthen basins (or ghye) with conical bottom 

 about six inches deep, thus dipping into the furnace, 

 around which the flame plays. Its circular form 

 also adapts itself more readily to the surrounding 

 flue than the irregular form of the copper basin. 



2. To produce this solid case, leaving open the 

 smoke-valve and doors of the furnace and ash-pit, 

 seventeen different moulded bricks are used, yet 

 the result is perfectly simple. 



3. But the furnace-mouths, instead of being at 

 the outer extremity of the setting right and left, 

 are within, facing each other. This scheme (pe- 

 culiar, I believe, to Gonatea) tends to condense 

 heat. I have further improved it, by advancing 

 a covered way, twenty-two inches deep, from the 

 furnace, which while it effectually screens the 



orifice 



