( 2H ) 
‘‘ round one of its Ends. This lafl Rope is that which 
“ raifes the Weight. At the other End of the Axel 
‘‘ there is a great wooden Wheel like a Fully H H, 
“ about which is wound a long Rope N, 
“ To work this Engine, one muft pull the long Rope 
« N, which cauling the great Wheel to turn, does alfo 
carry round the Axel or Barrel, which is made faft 
“ to it. This Axel, as it turns round, caufes the 
“ Ropes E E to wind about if, and thereby the Axel 
“ and the Wheel rife, whilft the Rope to which 
“ the Weight is faften’d, does alfo wind itfelf up upon 
“ the Axel the contrary Way ; and this double wind- 
ing up of the Ropes makes both the Burthen and 
“ the Axel and Wheel to rife at the fameTime. Now 
“ it is evident, that all this Rife is perform’d without 
“ theFridion of any Part, and confequently, the whole 
“ Power which draws the Rope N, is employ’d with- 
‘‘ out any Hindrance j which cannot be in other En- 
gines. 
“ It may be objeded that the Power which ads at 
“ N, mud, belides the Weight, raife alfo the i?\xel and 
“ great Wheel, and that their Weight is one of thofe 
“ Obftacles which Artftotle fays all Engines are lia- 
“ ble to 5 and that this Obftacle is equivalent to the 
^ Fridion which is in other Organs. But it may be 
“ anfwer’d. That Fridion is an Obftacle wholly una- 
“ voidable in all other Organs ; but that it is eafy to 
“ remedy the Obftaclcs of this, which is done by 
“ Means of the heavy Body M, taken equal in Weight 
“ to the great Wheel and Axel, which it fuftains by 
^ Means of the Rope 1 1, which running over the 
Pullies L L, is fix’d to the Ring or Collar K, that 
“ goes round the Axel F. For the Axel and the 
“ Wheel 
