THE INCLINED PLANE, WEDGE, 

 AND SCREW. 



Inclined Plane. Effect of a Weight on. Power of. Roads. Power oblique to the Plane. Plane 

 sometimes moves under the Weight. Wedge. Sometimes formed of two inclined Planes. More ) 

 powerful as its Angle is acute. Where used. Limits to the Angle. Screw. Hunter's Screw. 

 Examples. Micrometer Screw. 



