140 SEC. 4. KINEMATICS, STATICS, AXD DYNAMICS. 



205. Cams with discontinuous profiles. Curve-triangle in skew- 



curved slot. 

 With centroid. 



206. Cams with discontinuous profiles. Equilateral curve-quad- 



rangle. 

 With centroid. 



207. Cams with discontinuous profiles. Equilateral curve-penta- 



gon in straight slot. 



208. Cams with discontinuous profiles. Equilateral curve-penta- 



gon in adjustable slot. 

 Both parts are adjustable. 



209. Cams with discontinuous profiles. Curved disc in curved 



slot. 

 Both parts are adjustable. 



210. Cams with discontinuous profiles. Curved disc. 



For the motion of a slide valve. 



211. Cams with discontinuous profiles. Disc with looped slot. 



With shuttle, used in printing presses. 



212. Slider-cam, two-lobed cylindric sinoid. 



Force-closure. 



213. Slider-cam. 



Force-closure. 



214. Slider-cam, cylindric sinoid. 



21 5. Screw reversing train of Whitworth. 



216. Steering gear of Scott and Sinclair. 



217. Steering gear of Steel (Greenock). 



218. Steering gear of Me William. 



219. Steering gear of Reed. 



220. Steering gear of Rogers. 



221. Steering gear of Reuleaux. 



222. Boring machine. 



223. Boring machine (Stehelin). 



224. Boring machine (Reuleaux). 



225. Differential screws. 



226. Differential screws, with wheel train. 



227. Double screw train (Napier). 



Self-acting return. 



228. Cam reversing train (Girard). 



For governors. 



229. Leading screw with disengaging gear. 



With self-acting disengagement. 



230. Screw disengagement (Whitworth). 



With pallet action. 



231. Screw heckling machine (Houldsworth). 



