US63212A - chapman - Google Patents

Description

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JOHN H. CHAPMAN, or Urteil, newv Yon-K.

v Letters Patent No. 63,212, dated March 26, 1 86'l.4

IMPROVBD nous or HLHVATING HAY roars.

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flO ALL WH'OM IT MAY CONCERN: l v

Be it known that I,- JOHN H. CHAPMAN, of Utica, New York, have invented a newand'useful Improvement in the Mode of Elevating Hay Eorks and the like.

The nature of my 4i'nvention consists in the'use of'a turning post and casting-olf pulleyin connection.with\r the rpes and pulleys in use in such cases. Where theusual rope and pulleys are used, the draught is in a straight line from the lower' org'round pulley, and 'as barn-yards are sometimes small, or there may be something in the way, it becomes inconvenientat times to raise the load to the desired point.{And then, again, whenthe load has been raised -it is necessary to back up the horse to allow the fork to'descend. l To obviate these objections I set a stout post in the-yard', at, say, abcuthalf the distance from the lower pulley the horse would ,have to travel if he drew up the load in a straight line as mentioned; and when elevating the load the horse is driven 4around the post and turned in direction of the starting point, and when the load4 has reached the proper poi-nt the roperis' discharged or cast olf from the'post and. the fork deseen-dsby its own gravity. When the load has been carried to the extreme point to which it is to be elevated, the horse is at thestarting point, having travel-led only the distance to raise the load, and not twice the distance, as he would have to travel inthe ordinary modes of elevating the fork; thatis, travelling in a direct line the distance -necessary to elcvatethe load, and when it is discharged returning to the starting, point.

Figure I is a perspective view of the' invention. Figure '2 is a sectional view of the casting-oli' pulley; and Figure 3 is a plan thereof. I i A A is the post; B is the guide; C is the ycap on the post; C C are stops therein; D is a studon whichl the pulley E turns; E E are notches on the upper edge of the pulley E; F is the casting-off plate; Fl is a stop on the under side to catch in the notches E E; FZ-is aprojection on the underside of F to determine its motion between C 0'; G is the draught-rope; and H is the ground pulley. I, l l

The post A may be set in the earth or in any other substantial manner. On the side on which Athe horse l advances is set '.theguide B, which may be set in the ground or attached to the post-in such manner a's that when the draught-rope strikes it, it will slide up until it falls into the groove ,on the pulley E. The post and guide may be of wood or metal. The cap C is of cast iron made to it on the top of the post A, withlthe stud D cast thereon; anden this sturdvl) plays the pulley E, which'is also of cast iron, having Ia series oi' notches, E/ E', onlits upper edge, say about one inch apart, with the square shoulders of each in the direction of the horse as he faces the post invdriving toward it. On the same stud Dis-the 'casting-oh' plate which' is alsol of. cast iron,-and is made to turn horizontally over the pulley E. 'lhe outer end of F is.curved downward below the lower' side of the pulley E, and extends beyond the upper edge of the capC, vwhich outer end has also a skew on-its upper surface sloping from the direction of the barn-or ground pulley.4 On its under side is a stop, Fl, just over the notches E E', which catches into them' when the pulley is reversed, but which allows the notches to slide under it when the load is being elevated. .On the side of the cap are the stops C C', which, with the projection F2 on the under side of the cast-oil` plate, regulate the distance suchlplate may travel. v

The mode of operation-is as follows: The horse attached to the elevating rope inthe usual way is driven toward the post A, and when he reaches itis turned around it; the rope then strikes the guide Band 'is carried byiitup to the pulley E, as the horse advances. When 'the load has reached the-,desired point, the horse is stopped and the load dropped, and the horse being backed tive or six inches allows the pulley E to turn backward, `and the notches E E catching the stop Fl-carry back the said casting-oft` plate F, which from its form necessarily turns under the rope and lconsequently, raises the rope up, and when it has turnedA back aboutonethird way round it has cast it oitl the pulley, If the load is carried to the highest point, the horse at the time the rope is cast olf will have returned to the starting point, and all'that is necessary'is to turnhim about, when he is' ready to elevate another load.

The advantages of this invention are that it ischeap and simple, and allowsoi'- the moving of the horse in a-smaller space and saves one-half of the travel. There are many other eontrivances by which the rope may be cast off either by hand-or automatically, which Awill readily occur to any one. at once.

What I claim as my invention,l and desire to 'secure by Letters Patent, is-

1. In a hayl fork elevating apparatus or the like, the post A, in combinationwith. the draughtropeG and ground pulley H. i

2. The pulley E, and the casting-ott` plate F, constructedA andy operating in combination substantially as described.

JN. H. CHAPMAN.

l Witnesses Jenn G. Cnocnnn, Gnoncn M. WEAVER.

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