Buch 
All sorts of wheel-carriage, improved : wherein it is plainly made appear, that a much less than the usual Draught of Horses, &c. will be requir'd, in Waggons, Carts, Coaches, and all other Wheel Vehicles, as likewise all Water-Mills, Wind-Mills and Horse-Mills. This Method being found good in Practice, by the trial of a Coach and Cart already made, shews of what great Advantage it may be to all Farmers, Carriers, Masons, Miners, &c. and to the Publick in general, by saving them one half of the Expences they are now at in the Draught of these Vehicles, according to the common Method. The whole illustrated with Copper Plates. And an Explanation of the Structure of a Coach and Cart, according to this Method / by Jacob Rowe, Esq
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CHAP. I.

In raising any Power by Wheel , Pulley ,Winch or Windlass to determine the re-jtjlance made by the PriSlion of their Pevets.

I N Plate the Ist let Figure Ist represent alarge loaded Wheel whose Weight orPressuie on its Pevets (at b and c) 1 sup-pose to be 2000 or a Tun; whereby thesaid Wheel is in a manner held fast at thebearing Lines of the said Pevets, as by a Powerequal to 2000 pound weight, which Powerlying in the Surface of the Axis, cannot bebalanced by any other Power acting in thefame Surface (endeavouring to turn the Axis)under 2000 pound before the bearing Linesof the Pevets will begin to yield or to turn• out of their station to give place to newbearing Lines, at which time the Axis willbear on one side of the Groove or Passagethe Wheel turns in (on one of its FulcrumLines sr or q which Fulcrums are alwayson the sides of the Pevets at the distanceof a Quadrant from the bearing Lines) at therate of full 2000 pound; so, that if the famePower as beforementioned is at any greater

B 2 distance

 
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