State Agricultural Society. 275 



pulleys of large diameter at each end of the line, and being supported at 

 intervals on guide pulleys, is set in motion and carries with it the mate- 

 rial to be conveyed. » 



The complete system has been a subject of many inventions, each of 

 which is secured by United States patents granted to me. 



There is placed at each end of the line — that is, at the mine and at the 

 reducing works or mill — a grip pulley. The function of this pulley is 

 to transmit power to or from the endless wire rope. By reference to 

 Figures 1 and 2 it will be seen how this is accomplished. Figure 2 is a 

 general view of the pulley, at the circumference of which are fitted 

 clips, which, by the pressure of the rope, close over and grip the rope, 

 thus preventing the rope from slipping around the pulley. 



Figure 1 is a section of the rim of the pulley; A, rope; ii, clips, working 

 in recesses cast in circumference of the wheel (Z/L), and on fulcrums 

 (xx). The part K is cast separately and bolted on to the wheel after 

 the clips are fitted. 



On the line of the route and at distances of about two hundred feet — 

 the distance, however, depending on the configuration of the country — 

 are erected strong posts, having cross arms (like telegraph posts) suffi- 

 ciently high above the ground to clear any obstruction; these posts are 

 well stayed and firmly planted. On each end of the cross arm are fitted 

 sheaves or bearing and guide pulleys, in manner shown in Figure 3; and 

 it will be seen on reference that there are two pulleys on each end of 

 the cross arms — the upper pulley has a quarter circle groove, the lower 

 pulley a semicircle groove; and the inner flanges of the pulley* run in 

 close contact, but between the outer flanges there is a space equal to 

 half the diamete? of the rope; this space is left to enable the carrier 

 (Figure 4) to pass, and the pulleys are placed as shown in Figure 3, to 

 keep the rope in the groove of the pullej's and under control — a being 

 the upper pulley, b lower pulley, A rope. 



The grip pulleys at the end of the line and the guide and bearing pul- 

 leys of the posts on the line of the route being now in position, a steel 

 wire rope made from patent tempered steel wire, and about three quarters 

 of an inch in diameter is stretched and placed around the end pulleys 

 and between the guide and bearing pulleys. The two ends are brought 

 together and spliced by a long splice, thus forming an endless rope. 

 It is obvious that if the grip pulley is set in motion by suitable gear 

 attached to the steam engine, water wheel, or whatever power may be 

 employed, it will actuate the rope in the direction of the pulley without 

 difficulty, as it is supported at intervals of about two hundred feet by the 

 pulleys, as shown in Figure 3. Now, if suitable receptacles are pro- 

 vided, distributed, and attached to the wire nope and so adjusted as to 

 pass by all these pulleys and posts, the rope will convey .by its motion 

 these receptacles from one end of the line to the other. In order to 

 obtain this result I have invented various contrivances, but will describe 

 but the one shown in the model exhibited at your late Fair. 



At distances, say fifty feet on the steel rope arc attached carriers, 

 secured to the rope by their steel clasps, which surround the rope and in 

 form as shown in Figure 4, running off from the upper quarter of the 

 rope and the upper side of the carrier being tangent to it — the strength 

 of the carrier being increased in proportion to the length of the arm 

 from the rope. On the outer end. of the carrier a journal fitted with 

 collars is turned so as to receive a suspension bar fitted to the journal, 

 which is allowed to swing, hanging vertically by gravitation, and being 

 bent or curved sufficiently enables it to pass by the bearing pulleys. By 



