[ 207 3 



XXXIII. Description of an Apparatus for Curvilinear 

 Sawing. By John Tkotter, Esq.* 



W GENTLEMEN, 

 ITH the view of obviating many difficulties and ex- 

 penses, which have long attended the operations of those 

 requiring curvilinear sawmg in their trade, and of public 

 bodies connected wilh thoi^e trades, through the licentious 

 and refractory conduct of sawyers, it has been represented 

 to me as a measure extremely desirable, to adopt more ge- 

 nerally mechanical powers, could such be discovered as 

 would preclude much mystery and manual labour. 



Considering the subject in a national point of view, as 

 connected with our naval yards in the formation of timber; 

 with our military departments, in respect to wheels of every 

 description; with our whale and herring fisheries; our pub- 

 lic and private breweries and distilleries; our East and West 

 India companies, and other bodies depending on cooper- 

 ages, as well as other minor trades peculiarly liable to the 

 evils complained of, I invented a curvilinear saw, which, 

 with little aid of the most ignorant labourer, answers every 

 purpose. 



Having effected these ends, suffer me to solicit the honour 



of your acceptance of a model, together with a drawing of 



my saw, sufficiently accurate for the use of those in remote 



situations to work by, who may wish to use or make them. 



I have the honour to be, gentlemen. 



Your most obedient humble servant, 



John Trotter. 



Soho Square, Sept. 12, 1805. 



To the Society fr the E?icouragement 

 of Arts, &c. 



Fig. \. (Plate V.) represents a bird's-eye view of the saw 

 and machinery. The dotted lines show the spindle a, 

 moving on two centres t, I/, having at one end a pulley c, 



• From Trar>9acri'>n^ o/" the S'jcirlyf'.r the Encf^uragmtnt of ArU, &c. vol. xxiv. 

 —The Society'* gold nie.ial wai voted to Mr. 'I'rotter iot this comniur.icition, 

 aud a modtil of tli-: »a'A' is preHrVcci i/\ tbsir lepobitory. 



V«-l. 97. No. lo;. April IbU/. O and 



