No. 11. 



Wind-Mill to raise Water. 



163 



the pump tree at each revolution, and are out 

 of it at the other part of the revolution ; the 

 remainder of the axle between the crank and 

 box revolve immediately above the pump 

 tree. 



The box also carries a vane placed at the 

 opposite side from the wind-wheel, which 

 serves to keep the wheel always facing the 

 wind. 



When the water is raised by the wind act- 

 ing on the wind-wheel, with sufficient force 

 to turn it, together witl) the axle, crank, and 

 wrist, and thereby lower and raise the rod, 

 bucket and valve of a lifting pump, the por- 

 tion of water raised at each stroke runs out 

 in the usual manner at the discharge pipe. 



The different parts may be composed of 

 any suitable substance, and the dimensions be 

 such as the quantity of water in demand may 

 require. 



Where the opening or tube through the cen- 

 tre of the pump tree.is not cylindrical, a com- 

 pound motion may be communicated to the rod, 

 while the bucketand valve do not partakeof the 

 same vertical and horizontal motion, but move 

 simply in a vertical direction; this is effected 

 by introducing a universal joint to connect 

 the rod and bucket eitiier in the usual form 

 of a portion of a ball and socket, or in any 

 oth-er convenient manner. Another conveni- 

 ent mode is to place a pivot at the lower end 

 of the pump tree, and three or more horizon- 

 tal friction wheels, at or near the mouth of 

 the well to preserve the tree in a vertical po- 

 sition, and at the same time allow it to turn 

 freely in a horizontal direction by the force 

 of the wind on the vane. 



The wind-wheel, axle, crank, wrist, rod, &c. 

 are formed in the manner already described, 

 but the axle turns in the pump tree and a 

 semicircular cap confined over the bearing of 

 the axle, by screws ; and the vane is attached 

 to the pump tree at the opposite side from the 

 wind-wheel. A circular or other trough or 

 reservoir surrounds the pump tree and re- 

 ceives the water from the discharge pipe as it 

 is raised in the pump by the wheel, crank, rod, 

 bucket, valve, &c. as aforesaid. 



Explanation of Fig 29., which is a. plan or 

 horizontal frojection of the difterent parts of 

 the vertical wind-mill, described above, ex- 

 cept the wheel, which is supposed to be placed 

 on the shaft at 3 3 — and the vane which is 

 supposed to be placed at 7 and attached to 

 the hollow box 2 2, so as to extend a suffi- 

 cient distance in the direction of the dotted 

 line between 7 and 8. The wind-wheel ex- 

 tends a sufficient distance from the shaft or 

 axle ; the dotted lines between 9 9, show the 

 direction of two of the radi ; the others meet 

 the shaft or axle at the same angle. The op- 

 eration of the wind upon the vane 7 8 brings 

 the wind-wheel 9 9 facing the wind. The 



wind then turns the wind-wheel, and shaft or 

 axle 3 3 4 — crank 10 10, and wrist-which 

 is in the position of the dotted lines near 55, 

 but which is concealed from view by the up- 

 per end of the rod, 5 5 The dotted line be- 

 tween 4 and 7 represents the position of one 

 end of the shaft or axle — 1 1 represents the 

 upper end of the pump tree, and A the dis- 

 charge pipe. P. 

 Chester County, Pa., Dec'r. 5tb, 1837. 



N. B. I have described the vertical wind- 

 mill only because that is generally considered 

 the most powerful, and is suitable for the ap- 

 plication of the crank to produce an alternating 

 motion in the rod, bucket, and valve ; but where 

 desired, a vertical alternating motion may be 

 given to them by a horizontal wind-mill, the 

 vertical shaft of which turns in the vertical 

 pump tree, and by means of a screw or in- 

 clined plane formed upon the periphery of said 

 shaft, or upon a cylinder attached to the shaft 

 or axle ,to extend half way round the periphe- 

 ry, or other suitable distance; this forms what 

 is sometimes called a broken screw, and i.s 

 made to act on a projection fd^med on the 

 valve and bucket-rod so as to raise them du- 

 ring part of the revolution of the shaft or axle, 

 and they descend by means of their own 

 weight during the other part of the revolu- 

 tion ; when the screw or inclined plane or 

 projection aforesaid are not in contact, or a 

 groove may be made in a spiral form around 

 one half or other portion of the periphery in 

 one direction, and in a contrary direction 

 around the other portion of the periphery, 

 and the projection or cog upon the rod insert- 

 ed int* it ; a revolution of the vertical axle 

 or cylinder then causes the projection or cog 

 and rod to which it is connected, together 

 with the bucket and valve of a lifting pump 



