US420228A - Combined hay-tedder and hay-rake - Google Patents

Description

(Nomad.) I 4 sheets-sheet 1.

' S. L. DENNEY.

GMBINED HAY TBDD-ER AND HAY BAKE.

No. 420,228. Patented Jn. 28, 1890.

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(No Model.) 4SheetsSheet 2. S. L. DENNEY. GOMBINBD HAY TBDDER AND HAY BAKE.

No. 420,228. PatentedJaJn. 28, 1890.

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4 Sheets-Sheet 4.

S. L. DENNEY.

GOMBINBD HAY TEDDER AND HAY BAKE.

(No Model.)

UNITED STATES PATENTV OFFICE. l

SAMUEL L. DENNEY, OF MINNEAPOLIS, MINNESOTA.

COMBINED HAY-TEDDER AND HAY-RAKE.

SPECIFICATION forming part of Letters Patent No. 420,228, dated January 28, 1890. Application filed January '7, 1889. Serial No. 295,659. (No model.)

To a/ZZ whom it may concern: Y

Be it known that I, SAMUEL L. DENNEY, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and valuable Improvements in Combined Hay-Tedders and Hay-Rakes, of which the following is a specification.

My invention relates to improvements in horse hay-rakes which are fitted with attachments by means of which they may be operatedvalso as haytedders when desired; and it consists, generally, in the construction and combination hereinafter described, and particularly pointed out in the claims.

My invention further consists in an improvement upon my prior patent upon a combined hay tedder and rake, No. 312,336, dated February 17, 1885.

In the accompanying drawings, forming a part of this specification, Figure l is a front elevation of my improvedhay tedder and rake, the shafts and seat being removed. Fig. 2 is a vertical cross-section of the same on the line 'y y of Fig. l. Fig. 3 is a detail plan view of tappetshaft, rake-head, and teethclearers, with their various connections and supports. Fig. 4 is a detail elevation of the main vgear-wheel, showing ratchet Aand pawl. Fig. 5 is a central longitudinal section of the driving-wheel, hub, and main gear on the linea x, Fig. fi. Fig. 6 is a detail of the bellcrank, rake-lifting lever or arm. Fig. 7 is a detail of a modified form of rake-tooth. Fig. Sis a detail of a portion of the rake-head. Fig. 9 is a cross-section of the same. Fig. 10 is a longitudinal sectionof the same. Figs. 11 -and 12 are details of modifications of the interlocked ferrules of the toothed secv tions. Fig. 18 is a detail'oa portion of the bifurcated lever for shifting the mechanism to change the machine from a rake to a tedder, and vice versa, showing its connection with the tappet-shaft and rod engaging the arms of the rale-head. Fig. 14 is a detail of said rod; and Fig. 15 is a detail of the arms which support said rod.

In the drawings, A is the main or driving wheel; B, the main cross-bar of the rakeframe or axle arranged above the working mechanism and having at either end the metal spindles b, on which the main or driving wheels of the rake are journaled.

ct are the shafts or thills, preferably rigidly secured to the cross-bar B.

Ois the main gear or ratchet wheel journaled upon the inner end of the hub of one of the driving-wheels, having an inner gear or ratchet in which engages the pawl a', piva ,suitable spring o, bears upon the pawl, and a spur b', by means of which the pawlis ratchet. By this means the 'forward motion of the driving-wheel carries the main gear O forward with it, but allows it to be rotated backward without moving the gear-wheel.

The rake-headis of peculiar and improved construction, and consists of the shaft or tube L, supported in bearings on the brackets o, parallel with and slightly back of and belowV the cross-bar B. Arranged loosely upon this shaft are the series cf tubes or sleeves r, prefer'ably each of sufficient length to carry four rake-teeth. Arranged upon the tubes r are the ferrules f, preferably provided with end spurs t, placed between other ferrules d, having notches or recesses u to receive the spurs t, the ends of the spurs and the bottom of the whereby the angular position of the arms K of the ferrules f may be adjusted as desired, although, if preferred, this construction may be modified, as shown in Figs. 1l and l2, the spurs being dispensed with in Fig. 11,and in Fig. 12 the spurs lying in notches of exactly for angular adjustment. `The rake-teeth P are bent around the tubes r, each tooth being placed between the meeting ends of the ferrules d and f, the ferrules being then firmly clamped together, so as to hold the teeth rigengage the threaded ends of the tubes 1'. As Vmany tooth-sections as desired may be pro'- vided and any desired number of teeth arranged in each section; but I prefer to place four teeth in each section, as their weight is sufficient to cause them to fall with `force enough in redding to penetrate through the layer of grass or hay upon the ground. The ferrules f are provided withA forwardly-projecting arms K, carrying anti-friction rolls m. Journaled upon the brackets Zin front of the axle and parallel therewith is the tappetkept in engagement with the inner gear or.

notches being preferably similarly serrated,

oted at c to the hub of the driving-wheel, Y

the width to receive the spurs without meansy f idly in place, by means of the set-nuts e, which i if go j, rigidly. secured to said rod, through a sui,

or out of gearwith the wheel C when in gear,

making the machine a tedder, and whenrout of gear making it a rake, as hereinafter described.

Slidably arranged immediatelyvabove the armsis a 'locking-rod G, supported in suitable bearings, on the arms z, which are rigidly se-l cured to-therake-head shaft L and; project forward underneath the axle, said rod G be-V ingfprovided on its under side with the pro-f jecting hooks or lugs p, adapted to engage the armsK and lock them, so as to prevent the independent movement of the tooth-sections. Pivoted to the frame of the rake in a position-convenient to the operator is the bifurcated lever H, one member or` prong J of which engages the rodG by means of the collar able-:orifice in; which the member J passes. Theothermember I of the lever engages the tappet-shaft vE preferably by means ofA the spur-collar t', arranged loosely on said shaft,

but held in any suitable manner from sliding` thereon, itsspur passing through a slot o in the member I of said lever.v Byy operating this lever the tappet-shaft and locking-rodmaybe thrown laterally simultaneously and in the same direction, theyand their attach-g ments being-soarranged-that when the tappet-shaft is thrown into gear with the gearwheel .C the rod G is out ofengagement with the armsK,\whereby the motion of the machinecauses the tap petshaft to rotate, and the tappets strikingthe rolls upon the tooth-section varms causes the tooth sections to rise and fall, the machine thus acting as a tedder.

The pinion or small gear D of` the tappetshaft should bearsuch relationvin size to theY main-gear and the, number of arms of the tappets be suchthat the teeth cfa tooth-see tion will lbe raised from the ground long enough to carry them over the bunch of hay whiclrtheyhave gathered-and be released so as todrop immediately in 'front of the bunch. The tappets are also so arranged on Atheir shaft that no two arms will strike at the Isame tim-e, so as 'to make the movement of the machine as even and'uniform as` ossiblef- By a reverse throw of the -lever tappet-shaft is thrown out of gear with the maingear, and the spurs prof the rod G respectively engage Ythe armsK, and the-machine islthus-transformed into a rake'. When thus'arranged, the rake teeth are raisedl by means of the L-shaped arml R, rigidly secured the to the shaft L and engaging the rod G- by means of* the lugs g, between which the rod G rests, and the key 71, passing through suitable holes in the lugs g and bearing upon the rod G. The arm R is connected by the link s to the bell-crank lever S, which is pivotally supported upon the frame of the machine in a position convenient to the operator. Upon throwing the lever S-backward the upwardlyprojecting arm R is drawn forward and downward, carrying with it the rod G, which, bearing upon the arms K also depresses them, thus raising all of the rake-teeth simultaneously.

The prong orl member J of the bifurcated lever H is preferably given a slight rearward bend, so as to allow freedom of movement ofv the ear 7' to and froalongf-it inthe operation of the rake.

teeth may clear `themselves of the grass `when raised from the ground, either -in rakingorin tedding, I may prefer to arrange in each section a tooth havinga secondaryv braceor Wire y of -less curve than the tooth, so thatthe grass orv hay will f more readily be disengaged from it. lThe tooth-clearers O, I prefer to secure to the shaft M by means of the iron sockets W,

into which theyare fitted, and which are bolted or otherwise rigidly. secured to' the shaft,

oneofv which sockets W ymay be provided with The .tooth-clearers 'Ov are 'preferablyarranged upon a shaft M,`supportedfinsuitable bearings upon the bracketsfv,whichz are rigidly secured tol the frame of thema# chine. A forwardly-proj ecting arm T, rigidly L secured totheshaft M andhavinggthe handle- U pivoted thereto, by meansV of which'the angle of the tooth-clearers can be changed a forwardly-projecting socket -N,in`to which4v .the arm T may -be secured; or saidlarmmay.

be made integral with the socket W. The

several brackets Z and @,which'are vrigidly se'- curedupon the axle or main cross-bar B, are v an important feature of my improvemenhasw these can all be made exactlysimilar, so that in setting up the machine the bearingsforkv IIO the various shafts are adjusted in exactly the 'righty positions, and 'if a bracket or? other part be broken anew part can be substituted readily for it andthe relation of ythe working parts to each other always maintained accurately.V

.Another very important featureof my improvement is the ,locking-bar, G, adapted to engage va rigid arm on each of the tooth-sec tions, instead of a locking-bar arranged to' engage each of the teeth of therake, as in my prior patent. Great practical-dicultieslare found to exist in the application of thispriorAIV device for locking the teeth, since the rake-v teeth in use always become more or lessbent or distorted, so asl to stand out` of line with f each other and at unequal distances apart, and as a resultin the act of locking,- the bar will engage and secure with its Ahooks only a portion of the teeth, and in the act of unlocking some of the teeth which are bent out oflof the locking-bar G, the arms of the toothsections always remaining in line, no matter how much the individual teeth may be sprung, the operations of locking and unlocking are always positive and sure. Besides, the machine is rendered much more efficient and easily operated as a rake, for the reason that the lifting bell-crank leverR extends forward from the rake-head, so as to add its weight to the leverage power instead of detracting from it, as in the other construction, and the weight of the locking-bar and its supporting-arms z serve as a partial counter-balance to the weight of the teeth, instead of being added to their weight, as in the other construction, so that with an equal leverage very much less power is required to operate the rake than before, and the cost of construction is both. simplified by the use of a very much less number of locking devices or hooks and cheapened by reason of the increased simplicity, and also inthe use of lighter operative partsas of tappet-arm s and tooth-section arms-and the greatly-reduced liability to breakage, as above set forth. The tappet-shaft and the locking-bar are in this improved construction also brought close together and in position to be readily operated by the means of a single lever simultaneously and accurately in a manner very much superior to any means possible where the locking-bar and its attachments are arranged under the teeth and at a considerable distance from the tappet-shaft.

Operation: When used as a tedder, the lev ver H is thrown over, so as to carry the tappet-shaft laterally a suiicient distance to cause the pinion D to mesh with the gear C, in which position the tappets should in their rotation strike the rolls m, and the lugs p of the rod G are freed from the arms K. Upon the machine being propelled forward, the pawl' ct', engaging with the ratchet or inner gear of the wheel C, causes the wheel C to be turned 'with thehub of the drivingwheel upon which-it is journaled. The pinion D, engaging with the gear C, is therefore rotated oppositely, the tappet-arms alternately striking upon the anti-friction rolls m, thus successively raising and allowing to fall the several tooth-sections. The teeth rising with a gradual movement tend to roll the gathered bunch of grass bottom upward, and the parts are so adjusted that the teeth shall fall directly in front of the bunches thus dropped, thus leaving them upturned and loose in most favorable position for curing. Vhen used for raking, the machine is changed to a rake by throwing the lever H in the opposite direction, whereby' the tappet-shaft and rod G are carried in the opposite direction, disengaging the pinion D from the gear C and causing the lugs p to respectively engage the arms K, thus locking the tooth-sections together and preventing independent movement between them. The operation of the lever S, as described, -serves to raise the rake to dump the accumulated hay. l/Vhenever it is necessary, from working in hay of 4 different thickness or condition, to vary the elevation of the teeth-clearers, their position can be instantly changed by raising or lowering the handle U, as described.

I claim- Il. In adevice of the class described, the combination, with the tappet-shaft E, and the locking-rod G, of a rake-head composed of independent tooth-sections arranged loosely upon the common shaft L, each comprising the tube 0^, the arm-carrying ferrule f, the ferrules d, arranged on either side of the ferrule f, the lock-nuts e, and the teeth P, encircling said tube r and clamped between the meeting endsof said ferrules and said nuts, substantially as described.

2. In a device of the class described, the combination, with the driving-wheel A, the gear-wheel C, journaled on its hub and having pawl-and-ratchet connection with said driving-wheel, and the pinion- D, adapted to engage with said gear-wheel C, of the tappetshaft E, rigidly secured to said pinion D and slidably journaled upon the frame of the machine, a rake-head composed of independent `tooth-sections, each provided with the arm K,

adapted to be struck by the tappets of the tappet-shaft, the hook-carrying rod G, slidably supported in said machine and adapted to engage the arms K and thereby to lock said tooth-sections together, the bifurcated lever H, engaging said tappet-shaft and rod G and adapted to reciprocate the same, the

arm R, `rigidly secured to the shaft of the rake-head and engaging the rod G, and the lever S, linked to said arm R and adapted to operate the same and to raise and lower the rake-teeth, substantially `as described.

3. In a combined hay tedder and rake, the combination, with a rake-head comprising a series of independent toothsections having forwardly projecting arms adapted to be tripped by suitable mechanism in t-he operation of tedding, and a slidable bar having a series of hooks adapted to engage said arms and to lock said tooth-sections together, of the forwardly and upwardly extending L-shaped arm R, rigidly secured to said rake-head and engaging said rod, and the bell-crank lever S, linked to said arm, adapted to be operated substantially as described.

4.V In a combined hay tedder and rake hav- TOO IIO

shaftslidably journaled in front of said toothsections and paralleltherewith, and adapted when in gear to'be rotated'by the'forward movement of the machine upon the ground through suitable gear-connections with one of the driving-wheels, and a slidable rod arranged immediately above the arms of said tooth-sec'- tions parallel with said tappetlshaft and pro` vided with a series of hooks adapted to enbination 'ofi-a sectional rake-head having forfwardly-projectingfarms adapted to`loe'tripped 2o in the operation of tedding, a slidable looking-bar arranged above said arms and provided with hooks adapted to engage said arm's and to lock them together, and an arm rigidly Vsecured to the rake head shaft and engaging. 2 5 said locking-bar and adapted to be depressed and lifted so as to raise and lower theralceteeth, substantially as and for the purposes'set forth.

In testimony whereof I'have signed lthis 3o specification in the presence of two subscribing witnesses.

Witnesses:

J No. L. DENNEY, EDWARD S. DENNEY.

SAMUEL L. DENNEY;

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