US1759549A - Hay carrier - Google Patents

Description

May 20, 1930. H. J. FERRIS 9,

HAY CARRIER File d Nov. 8, 1929 4 Sheets-Sheet 1 May 20 1930'. FERRls 1,759,549

HAY CARRIER Filed Nov. 8, 1929 4 Sheets-Sheet. 2

May 20, 1930. H .1. FERRIS 1,759,549

' HAY CARRIER Filed Nov. 8, 1929 4 Sheets-Sheet 3 May 20, 1930. H. J. FERRIS 1,759,549

' HAY CARRIER Filed Nov. 8. 1929 4 Sheets-Sheet 4 llllllull [I l H l v EI EIE a? I 111 IIIIIIII/I Patented May 20, 1 9 30 HOWARD J. reams, or HARVARD, ILLINDIS, ASSIGNOR TO HUNT, HELM, renters &

, COMPANY, OFgfiARVAB-D, rumors, A CORPORATION-OF ILLINOIS i I HAY CARRIER Application filed November '3, 1 929.

Myinventionrelates to hay carriers'of the type employing a flexible" element by which the elevation of sling-elevating sheaves is controlled, and a clamping mechanism operating to clamp theelement when the sheaves are elevated to the desired height.

My object is to provide improvements in hay carriers as hitherto'p'rovided to the end that the flexibleelement may be of relative inexpensive construction and "of relatively lightweight and be effectually clamped with the minimum of wear at the same point repeatedly in the maximumjelevation of the load supported by; thesheaves, or at any other pointalong the element in the raising of the load short oiithe mazgimum height. A I I have chosen toillustrate'my improvement in a'carrier the parts of which, except for the flexible element by whichthe elevating of the load is effected, are the same as that disclosed in United States Letters Patent N o. 1,207,285 granted December 5, 1916,"'and therefore a brief description only, of the general features of the carrier shown will suiiice.

Referring to the accompanying drawings: Figure 1 is a view in side elevation ofmy improvedhay carrier, one of the sling1r opes being removed Y I i Figg'urel is a detail of oneofthe sections of the flexible element by means of which the sling-hoisting sheaves are raised and'lowered,

Figure 2 is a view in endelevation of the carrier taken from the right-hand end of Fig.

land showing both' sling ropes in place. Y

" Figure 3' isa section taken at the irregular line 3- 3 on Fig.1 and viewed in the direction of the arrows.

Figure 4 is aview in side elevation, with certain parts in section, of the carrier'illustrating: the partsin a position in which the flexible element is clamped. j v u Figure 5 is a plan view of the removable and. rotatable c'arrierhead forming an element of the Icarrier; v 1 *i u v Figure 6 isa viewin side elevation of the sheave which supports the flexible element to gether with the connected parts, the clamping means for said element beingshown in section; and z i Figure 7, a section taken .atithe line 7-."7 v

Seiial' No. 405,662.

on Figure 1 and viewed in the direction of the arrows.

in the construction shown, 8 represents the track positioned above the place to which the hay-1s to be discharged and commonly proi=4 vided adjacent the roof of a hay barn and eX- tending lengthwise thereof. h

Mounted to travel along" the track'8 is a trolley, or traveler-casting, 9 equipped 'with wheels 10 at which it is supported onthe track, the latter being provided with an abutment block 11 adapted to be secured in any I N TEM ATE AT N Q HCE desirable position along the track and lo eated directly above the place wherethehay is to be elevated by the carrier and thence moved above thelocation at which it'is to be dumped.

Rotatably mounted on the trolley Qis a.

circular head 12by which all of the parts hereinafter described are supported. Piv-,

oted on the head 12 by the horizontal pivoting means 13 is a frame 14 between the side members of which a sheave 15 is pivoted as indicated at'16. To one of the side members of the frame 14: a clamp element 17in the *form of a lever is pivoted'at 18 and is adapt ed to cooperate with theflexible element represented'generally at 19 and hereinafter fully described, which extends'ov'e'r the sheave 15,. The clamp 17 is providedwith a segmental rack 20 which meshes with a segmental rack 21 on a bell crank on the frame 14.

otally connected at 24 with a link 25 which in turn is pivotally connected at 26 with the lower end of a trip lever27 fulcrumed at a; horizontal pivot 28 on the head 12. The lever 27 is provided with two spaced apart upwardly extending projections 29 and 30 adapted in the rocking of the lever 27 in opposite directions to alternately cooperate with the abutment v11. The lever 27 has rigid'therewith a hook 31 to which one end of thefiexible element 19 is connected as shown in Fig. 2 whereby the weight of the load on the lever 22 fulcrumed at 28 The bell crank 22 ispivhay carrier is exerted against the lever 27' V tending to rock it in a direction forswinging the clamp 17 in clockwise direction in Fig. 4. The mechanism jshown also comprises means for releasably maintaining the rope 12. The lever 32 is provided with an upwardlyextending projection 34 which, when the lever 27 extends in the released position shown in Fig-1, projects beneath a shoulder 35 cm the lever 27 and holds these parts in the position just referred hand rope for releasing the lever 27 under manual control. The lever 32'is'pivotally connected at the opposite'side of the pivot 33,

as indicated at 38, with the upper .endof-=a push rod 39 the lower end of which is provid ed with afoot 40 whereby the lever 27'is, au-

- toniatically released when the load carried by the. carrier 'islifted to the-maximum.

height. 1 V u r v The form of carrierdescribed is particularly intended forhandling hay in-slings and to this end apair of sheaves 41 and 42 are hung j uponthe flexible element 19 as shown in Fig.

2, the frames 43 and 44 in which these sheaves are journalle'd being provided with hoo ks 45 and .46 respectively, adapted te-be hooked over the sling in which thehay to be: lifted is located. r

' A general descriptionof the operationof the mechanism in so far as it'has been described is as followspAssuming the parts to be in the position shown in loin which po- 11 sition the rope clamp 17 is in inoperating position, and held in this" position by the projection 34 of the lever 32, the load islif ted by pulling on the flexible element 19. vAssuming V the weight ,ofithe load on the lever 27 causes abutment 11.

Y this lever'to'rotate and force the clamp '17 into clamping position 4). During the lifting of the from moving to the left in Fig. 1 because of the engagement of the projection 30 with the Upon the release of the lever V 27 as above stated the projectionBO moves :to a position thereby permitting the carrier to be i shifted to the left in Fig. 4, by drawing-on' theflexi- '7 1 .1 e em n 19 In practice the sling' which 'supportsithe load so constructed that by drawingon a rope connected therewith the V sling 'is-opened to discharge the load. The carrier is then returned to thepoint of loading, as for'exampleby pull-ingonthe sling releasing rope; lathe-movement of the carrier tothepos tionjust stated the projection 29011" the lever 27 engages the abutment 11 which causes the lever 27 to rockin-counter clockwise direction inaFig. 4 to the position to, a coil spring 36 tend-1 V ing at'allitimes to rotate .the lever 32in counanother load ,to be l fted. 1 'terclockwisedirection in Fig. 3. The lever 32 is adapted for connection at 37 with constrnction of comprises a sect on47 of braided W re cable 1,

load the carrier is preventedbelow this abutment (Fig. '4)

shown in; Fig. 1 with the result of moving the 7 clamp 17 .to inoperating position." "The proprojected by 36 beneath the portion 35 of the jection 34, on the lever 32 is the spring lever 27 thereby locking the lever in clamps released position, .The flexibleelement 19 may then be paid outto lower the rising the sheaves 41fand 42 to engage with The provision vof the connection of a'rop'e to the lever 32 at 37 is to permit the operator;

in the raising of-the load to'any' height short of the maximum height,to trip the lever 27' for renderingthe clamp 17 operative to support the load and'withdraw the pro ection 35. from engagementwithjthe abutment 11.

Referring nowto the particular illustrated the flexible element 19, ll!

which at the max mum heightiof elevation of the load extends into'engagement with the sheaves'41' and-42 and over'the sheave,15

the outer endof this section being provided with an abutment portion 48 having an eye I 49. The element 19 also comprises a section 50.01? fiber rope shown as connected at one f end with a couplerol having an eye 52. The I 50 arefflexiblyconnected toy m an 9?? in 5 extending sections 47 and gether as through the eyes 49 and- 52.

The ,cablesection 47 of such small (diameter that it cannot be engaged by the clamp 17 when the ljatteris swung =to thefclaniping' V oosition shownin 4 and 6., The abutment 48 is of such diameter that it cannot pass 3 between thesheave l5 and the clamp. 17 when 'thelatter is in clamping "position; and the 'rope section-5O is of suchdiameter that it will i becomeiclamp'ed between the clamp 17 andf the sheave 15 when the clamp 17 is in clamp ing position, v r V. The section 47 is of such length that when the load is liftedto its maxirnumlieig-ht the abutment 48 will extendin a position rel'ative to the clamp 17 substantially'as shown in Fig. 1. Therefore, as soon'asthe'lever 27,

is released for movement to l the position shown in Fig. 4,by the raising of'the arm 39, the flexible element 19 will;pay"out a rela tively short distance tothepoint where the abutment 48 will engage the end of thei l p for the The clamping of the element19iip'on the release of the trippmechanism by the rope connected with the lever 32, will-occurgat the rope section 50 thereof.

It'will, "therefore, be-understood that I "I have provided a form of flexible element whichis peculiarly adapted to resistwear. Z

The greatest wear occurs in aconstru'ction of this generalcharacter at thelpoint-ofgripping the flexible element under theactionof the automatiolatch releasingirneans. By pro-I viding the abutment 48 forcooperatingjwith s in porting structure carried thereby andcom- 1 advantages resulting from the use of such a,

the clamp in the automatic releasing opera-= tion referred to undue wear and resultant impairment of the structure, is avoided. At the same time I provide for the utilization of a fiber rope constituting a large part of the ele-' ment 19 and which is the part at which the element is clamped in the manualrelease of the tripping mechanism at any desiredpoint short of the maximum height to which the load may be elevated. As the gripping of the rope section 50 under manual control as stated rarely, if ever, occurs at the same point, the

rope section are availed of, without objection= I able wear of this section.

WVhile I have illustrated and described a particular construction embodying my in vention, I do not Wish to be-understood as intending to limit it thereto, as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. In combination, a track, a carriage movable thereon, a trip block on said track, a trip member cooperating with said block, sling pulleys, clamping mechanism, and a composite flexible member for controlling the elevation of said pulleys and comprising a section of fiber rope, a section of metal cable and an abutment adjacent the outer end of said i metal cable section and adapted to engage said clamping mechanism in the elevated position of said pulleys, said metal cable section being of such diameter that it cannot be clamped by said clamping mechanism and saidrope section being of such diameter that it can be clamped by said clamping mechanism.

, 2. In combination, a track, a carriage mov able thereon, a trip block on said track, a trip member cooperating with said block, sling pulleys, clamping mechanism, posite flexible membenfor controlling the elevationof said pulleys and comprising a section of fiber rope, a section of metal cable and a connection between said sections hav.

ing a portion forming an abutment adapted to engage said clamping mechanism in the elevated position of saidpulleys, said metal cable section being of such diameter that it cannot be clampedby said clamping mechanism and said rope section being of such diameter that it can be clamped by said clamping mechanism.

- HOWARD J. FEBRIS.

and a com

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