US1699478A - Cable guide for haystackers - Google Patents

Description

Jan. 15, 1929. 1,699,478

A. E. RUTTER CABLE GUIDE FOR,,HAYS'MCKERS Filed March 21, 1925 au Z r lfi Patented Jan. 15, 1929.

UNITED STATES PATENT OFF ICE.

ALVA E. BUTTER, OF OTTUMWA, IOWA, ASSIGN'OR T0 DAIN MANUFACTURING COM- PANY OF IOWA, OF OTTUMWA, IOWA,

A CORPORATION OF IOWA.

CABLE GUIDE FOR HAYSTAGKERS.

Application filed March 21, 1925. Serial No. 17,197.

My invention relates to hay stackers of the type comprising a hoisting means arranged to be raised to lift the load of hay that is to be deposited on the stack, by means of a'hoisting cable operated by horse power. In such machines the cable or rope runs over upper and lower sheaves carried by the usual frames that form part ofthe stacker, and the lower sheave or pulley is usually loosely attached to the stationary frame so that it may swing laterally to enable the team in hoisting to walk away from the stacker at the most convenient angle. The devices heretofore employed for that purpose have, however, not been entirely satisfactory, and one of the objects of my present invention is to provide an improved mounting for the lower sheave by which it will be steadily supported, and at the same time will be free to swing laterally to permit the hoisting rope -to be drawn away in any direction. An-

other of my objects is to provide convenient and effective means for securing or braking the hoisting cable, to hold the load up at any stage of its elevation, but which will be capable of being easily and quickly actuated to release the cable when its release is desired. I accomplish these objects as illustrated in the drawings and as hereinafter described. What I regard as new is set forth in the claims.

In the accompanying drawings, in which I have illustrated only such parts of a stacker as are necessary to an understanding of my invention,-

Fig. 1 is a side elevation of part of the stationary frame of a stacker showing the lower sheave in side elevation also;

Fig. 2 is a similer view partly in vertical section to show the cable braking or looking devices;

Fig. 3 is mainly a plan view of the parts shown in Fig. 1, a part of the frame being in section;

Fig. 4 isa partial vertical cross-section on line 4-4 of Fig. 2; and

Fig. 5 is a perspective view of the cable locking shoe Referring to the drawings, 6 indicates one of the side members of the stationary frame of a stacker, on which the usual operating parts, such as a swinging hoisting frame, are mounted, and 7 indicates a fixed upright or standard that rises from said stationary frame. These partsmay he of any approved design, as my invention is not concerned with the particular construction of the stationary frame any further than that it must be such as to provide a suitable support for the parts hereinafter described.

Fixedly secured to the side member 6 is a overlie the lug 9. The lug 11 is likewise provided with a vertically disposed passage arranged in vertical alinement with the passage in the lug 9. J ournaled in the bearings provided by these two passages is a sheave supporting bracket 12, the end portions 13, 14 of which are of reduced diameter and of cylindrical form so that they constitute journals that fit and bear in the passages above referred to, therebyrotatably supporting the sheave supporting bracket 12 so that while it may turn about a vertical axis, it is securely held against vertical movement, as clearly illustrated in Figs. 2 and 8.

The upper portion of the bracket 12 has an axial passage 15 therethrough, and preferably a similar passage 16 is provided in the lower portion thereof, the inner ends of which passagesmerge into a concavity 17 at the intermediate portion of said bracket, as shown in Fig. 2. At opposite sides of this concavity are two'parallel members 18, 19,

that are integral with the axial portion of the bracket, and project laterally to provide a support for a sheave 20, which is'mounted to rotate upon an axle21 the ends of which 7 V are secured to the members 18, 19 respectively. I Preferably anti-friction bearings 22 are provided between the hub of the sheave around the under and inner portion of said sheave, and passes upward therefrom through the axial passage 15, to an operative connection, in any suitable way, with the load supporting and lifting element of the As best shown in Fig.

'which is'best shown in Figs. 3 and 5.

- Figs.

of r the shoe and gradually clockwise direction as viewed in Fig.

stacker, which may be of any approved de sign, such as a swinging hoisting frame. The opposite end of the cable is arranged to be hitched to a team, so that the draft operates to rotate the sheave in a clock-wise direction as viewed in Fig; 2. Below the sheave the bracket 12 is provided with a laterally extending member 25 constituting a bottom wall that underlies the sheave and has a concave upper surface that may substantially conform to the curvature of the sheaveand is adjacent thereto, which surface is longitudinally grooved to provide a better gripping surface for the cable 24. 1, the member 25, with those parts of the bracket 12 that partially enclose the sheave 20, constitute a housing for theportion of the sheave with which the hoisting. cable engages, which housing is capable of swinging laterally with the sheave about a vertical axis coincident with the load sustaining portion of the cable, which, therefore, is not affected by such lateral swinging.

As it'is desirable that means be provided whereby the hoisting frame of the stacker may, whennecessary be locked against descent, for that purpose I provide a braking shoe orwedge block 26 the constructioi i1 ofj fl lC shoe is in the form of a sector the inner surface of which is curved to conform to the curvature-of-the sheave 20, and is shaped to fit closely in' the groove 23, as shown in 2 and 8. Said shoe is, however, detached from the sheave so that it is entirely free'to be moved radially relatively thereto to varyits frictional engagement therewith, or'to be laid aside when not required for use :so that'then it will not interfere with the free movement of the cable in either direction. The outer surface of said shoe is provided with a longitudinal tapered groove 27 that preferably commences near the middle grows wider and deeper until it runs out at one end of the shoe, which, in operation, is its inner end, as: shown-in Fig. 2, thereby providing said shoe with a wedge-shaped portion 28. This shoe isadapted to be applied to the groove of the sheave between the sheave and the draft end portion of the cable 24, so that when the cable is paid out to lower the load, at which time the sheave rotates in a counteip- 2, t e inner end of the shoe will, by its frictional engagement with the sheave and the cable, be carried around between the sheave and the: cable and into the space between the sheave'and-the member of the housing,

thereby forcing the cable away from the sheave and clamping it against the inner face ofithe member 25. Thus a very'effective brake'is provided which stops descent of the load and will hold it up indefinitely. To

callyalined passages,

release the load so that it may descend it is necessary only to applysuflicient draft to the cable to permit the shoe to be withdrawn, since the draft rotates the sheave in the opposite direction and carries the shoe out of its operative position. It will be noted thatthe side and-bottom walls of the housing member 25 serve as supporting means for the detachableshoe, holding the same laterally and vertically against displacement when the shoeis inoperative position in the sheave, and the bottom: wall also serving as a gripping surface against which the cable is forced by the shoe in the wedging action of the latter. As the shoe is not-attached to the sheave", when iIlOt requiredfor use it may be removed "and laid aside, so as -not torestrict the movement of the cable in either: direction. The shoe is preferably attached to the housing by a' chain 29, so that it will always be available for use. when needed.

Obviously lateral swinging of the sheave does not interfere with the operation of the looking or braking device. 7

What I claim as my invention and desireto secure by LettersPatent, is-

1. A cable guide for hay stackers comprising upper and lower brackets fixedly se cured to the stacker frame and havingfivertia 1 sheave supporting bracket having upper and lower co-axial journals mounted to rotate in said passages, an axially disposed passage through the up per journal for the-hoisting cable,nmeans for pivotallysupporting a :sheave havinga peripheral groove substantially in tangential relation to the latterpassage, a housing; en-' closing the cable engaging portion ofthesheave and having a laterally projecting member that extends under the: sheave oppo site the groove therein, and awdetached shoeadapted to fit in said groove: and to be projected between the sheave and said laterally projecting: member to grip the cablebetween: siilid member and the outer: surfacerofsaid s oe.

2; Acable'gui-defor hay stackers comprising upper and cured to the stacker frame'andhaving; vertically alined passages, a sheaveisupportin-g bracket having upper and lower co-axial. journals mounted to rotate in said passages, an axially disposed passage through the up- I per journal for the hoisting cable, means'for pivotally support-ingya sheave having a peripheral groove substantially in-tan'gential relation to the latterpassage, a housing; enclosing the cable engaging portioniof 'the sheave and having; a laterally projecting member that extends undertheisheave oppo-:- site-the groove therein, and a detached shoe adapted to fit'in said groove and to be pro jected between the sheave and said laterally projecting member to grip the cable-between said member and the outer surface of sai-d 'lower brackets fixedly seshoe, said shoe having a groove in its outer surface tapered in depth and width, to rereive the cable.

3. In a hoisting device, the combination with a sheave and a bracket pivotally supporting said sheave to swing about a vertical axis, said bracket comprising a bottom wall curved substantially concentrically with the periphery of said sheave and having an intermediately disposed concavity in its curved upper face, of a detached shoe adapted to be applied to the sheave between the periphery thereof and the cable, and to project over said bottom wall and operable by its frictional engagement with the sheave to clamp the cable against the concavity in said bottom wall when the sheave is rotated to lower the load.

4. A cable guide for hay stackers comprising upper and lower brackets fixedly secured to the stacker frame and having vertically alined passages, a sheave supporting bracket having upper and lower coaxial journals mounted to rotate in said passages, an axially disposed passage through the upper journal for the hoisting cable, a sheave pivotally supported by said bracket, said sheave having a peripheral groove substantially in tangential relation to the axis of the latter passage, said sheave supporting bracket comprising a bottom wall curved substantially concentrically With the periphery of said sheave and having an intermedi ately disposed concavity in its curved upper face opposite the groove in the sheave, and a detached shoe adapted to fit in said groove and to extend over said bottom wall to gri thelcable in the concavity formed in said wal 5. A cable guide for hay stackers comprising upper and lower bearing brackets fixedly secured to the stacker frame, said upper bearing bracket having a vertically alined passage therein, a sheave supporting bracket having upper and lower co-axial journals having bearing engagement with said upper and lower bearing brackets to permit lateral swinging of said sheave supporting bracket, an axially disposed passage through the upper journal for the hoisting cable, a sheave pivotally supported by said latter bracket, said sheave having a peripheral groove substantially in tangential relation to the latter passage, said sheave supporting bracket comprising a bottom wall extending outwardly under the bottom of the sheave in relatively close proximity thereto, and a detached shoe adapted to be applied to the sheave between the periphery thereof and the cable and to be carried in Wardly over said bottomwall to grip the cable between the bottom wall and the shoe, said bottom wall also cable to the peripheral groove in said sheave when the shoe is detached.

ALVA E. BUTTER.

tending to guide the

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