US806829A - Hay-sling carrier. - Google Patents

Description

N0- 806,829. PATENTEDDEG. 12, 1905.

G. A. OLSON.

HAY SLING CARRIER.

APPLICATION FILED JUNE 27, 1904.

2 SHEETS-SHEET 1.

No. 806,829. PATENTED DEC. 12, 1905.

G. A. OLSON.

HAY SLING CARRIER.

APPLICATION FILED JUNE 27, 1904.

2 SHEETS-SHEET z.

Mfr

UNITED STATES PAIENT OFFICE.

HAY-SLING CARRIER.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed l 11118 27 1904. Serial N0. 214,281.

1'0 all whont it may concern:

Be it known that I, GUSTAV A. OLSON, a citizen of the United States, residing at Albert Lea, in the county of Freeborn and State of Minnesota, have invented certain new and useful Improvements in Hay-Sling Carriers, of which the following is a specification.

My invention relates to improvements in sling-carriers adapted for use in carrying hay and the like to the'mow, and has for its object improved means for automatically tripping the carrier and holding the load in elevated position when the draft-rope is pulled to move the carrier.

To that end my invention consists in the construction, combination, and arrangement ofparts hereinafter described and claimed.

1n the accompanying drawings, forming part of this specification, Figure 1 is a side view of a sling-carrier embodying my invention, showing the trip mechanism in position before the draft-rope is pulled to move the carrier. Fig. 2 is an end View of the same. Fig. 3 is a top view. Fig. 4 is a side view of the carrier with one side of the housing and carriage-frame removed, showing the trip mechanism in tripped position under tension of the draft-rope. Fig. 5 is a side view of the trip-ball, showing the head of the setscrew. Fig. 6 is a detail of the sliding clamp of the trip-ball, and Fig. 7 is a vertical section on line w w of Fig. 5.

In the drawings, A represents a track, which may be supported or suspended in any convenient way at the place of operation. It has upon its under side a longitudinal'beaded flange 2, upon which is clamped the stop-block 3, having down-projecting tapered lugs 4 and 5. Having running support upon the track by means of wheels 6 is a carrier-frame B, to the lower end of which is secured a ring 7, having upon the inside an annular shoulder 8. Upon this shoulder is slidingly supported the supporting-ring 9 of a housing O, in which are journaled draft-pulleys 10 and 11, the forward pulley 11 being arranged lower down than the rear pulley 10. The draftrope 12 is secured at one end to a ring 13 in the sling-block D and passes upbetween the pulleys l0 and 11, thence rearwardly over the rear pulley 10, then down and around the pulley 14: and guide-pulleys 15, journaled in the sling-block, and up over the forward draft-pulley 11 to the place of operation. The guide-pulleys are journaled in the slingblock at approximately right angles with the main pulley 14. The load to be carried may be attached to the sling-block in any appropriate way.

Pivotally supported within the housing C at a point between its ends upon the pivot 16 is a locking-dog 17, having at one end a pair of interspaced tapered lugs 18 and 19, projecting upwardly in position to engage the lugs L and 5 of the stop-block, and at the other end an outwardly-curved cam-face 20. Also pivoted within the housing at a point between its ends by means of a pivot 21 is a catch-lever or catch 22, positioned below the dog 17 and swinging in the same vertical plane. The catch is formed at one end with an inturned arm 23, fitting over the side edge of the dog 17, which is formed with a shoulder 24 in position to abut against the end of the arm 23, as shown in Fig. 1. At its other end the catch is bifurcated and formed with interspaced forked fingers or forks 25 and 26, respectively, arranged one over the other and so positioned that one or both of the forks, according to the swing of the catch-lever, will straddle the draft-rope.

To trip the catch 22, as well as to regulate the height to which the load is to be raised, I have provided an adjustable trip-block or trip 27, consisting, preferably, of a ball or block of suitable material having interiorly a sinuous bore or channel 28, through which the draft-rope is passed. The ball is adjusted and held upon the draft-rope at the desired distance above the sling-block by means of a clamp-block 29, having one or more lateral ribs 30 arranged to slide in the lateral grooves 31 of a transverse bore extending into the ball from one side thereof to the channel 28. The sliding clamp-block is formed with a concaved inner end 32 to fit around and partially encompass the rope, and thereby grip it more securely, the end of the block being held in proper relation to the rope by the ribs 30, which prevent the block from turning in the bore. The clamp-block is forced inwardly against the draft-rope in the channel 28 by means of a set-screw 33, threaded within the bore. When it is desired to move the ball, the set-screw is loosened, thereby releasing the clamp and permitting the rope to be drawn freely through the channel 28. By the use of this clamp-block the chafing of the rope is minimized.

When the carrier is in position for receiving the load, as shown in Fig. l, the dog will stand in upswung position, with its rearward lug l8 projecting up between the lugs of the stop-block, and will be held locked in this p0- sition by the arm 23 of the catch, which fits over the side edge of the dog to prevent its turning in one direction and abuts against the shoulder 2 L to prevent its turning in the other direction.

When the sling-block, with its load, has been raised to the position shown in Fig. 1, the trip-ball will'come into engagement with the upper fork 25 of the catch, and any further pull upon the draft-rope will cause the trip to raise the forked end of the catch upon its pivot until the arm 23 is swung out of engagement with the dog, thus leaving the dog free to turn upon its pivot. Under the tension upon the draft-rope the rearward lug 18 upon the dog will be drawn against the forward lug 5 of the stop-block and be cammed down by it, thus swinging the dog upon its pivot and permitting the carrier to be drawn along the track to the place where the load is to be deposited. The cam 20 at the other end of the dog will at the same time be thrown up against the end of the arm 23, thereby preventing the catch from swinging, back to its former position and forcing it against the draft-rope in the draft-pulley 11. In the swinging of the catch the lower fork 26 will be thrown up under the ball 27, and as the catch is held locked in such position by the cam 20 the fork 26 will support the ball and sling-block in raised position until the load has been unloaded and the carrier is returned to the stop-block.

When the carrier is returned to the stopblock, the forward lug 19 of the dog will strike the forward lug 5 upon the stop-block, and the dog will thereby be swung back into its former position, as shown in Fig. 1, and the lowering of the sling-block under its own weight or when pulled will throw the catch back into locking engagement with the dog, the ball passing the end of the fork 26. By this arrangement of dog and catch the carrier may be returned to the place of loading without being swiveled round and reversed.

The details of the device may be variously modified without departing from the principle of the invention, the scope of which is defined in the claims.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a sling-carrier, in combination, a carrier-frame and two pulleys carried thereby, a slingblock and pulleys carried thereby, a draft-rope secured at one end to the slingblock and engaging all of said pulleys, a trip secured to the draft rope above the slingblock, a pivotally-snpported locking-dog, a pivoted catch engaging the dog at one end and having its other end forked, the forked end being in position to overlap the trip and straddle the draft-rope and to be engaged by the trip to turn the catch when the draft-rope is pulled, and to support and hold the trip when the draft-rope is released, the catch and dog being provided with cooperating means for holding the catch in trip-supporting position.

2. In a sling-carrier, in combination, a carrier-frame, a sling-block, a draft-rope secured to the sling-block and pulleys therefor, a pivoted dog in position to engage the stop-block, a pivoted catch engaging the dog and provided at one end with a pair of interspaced forks arranged in a vertical plane in position to straddle the draft-rope, and a trip-block carried by the draft-rope in position to engage the upper fork to trip the catch when the draft-rope is pulled, and to be engaged and held by the lower fork when the draft-rope is released.

3. In a sling-carrier, in combination, a supporting-track and a stop-block carried thereby, a carrier-frame, a sling-block and pulleys therefor, a trip-block secured to the draftrope above the sling-block, a pivoted dog in position to engage the stop-block, a pivotallysupported catch engaging the dog at one end GUSTAV A. OLSON. I

Witnesses:

ALFRED CHRIsToPHUsEN, .BEN. H. CLEMENT.

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