US638873A - Hay-rake. - Google Patents

Description

N 638 873. P t t l2. a9.

o .1. MACPHAIL. a e" ed De '8 HAY BAKE.

(Application led Nov. 16, 1898, Renewed Nov. 8, 1899.)

(No Model.) 3 Sheets-Sheet l.

24651665565 lwa'efcoi" No. 638,873. Patented Dec. I2, |899. J. MACPHAIL.

HAY BAKE.

l Application led Nov. 16, 1896. Renewed Nov. B, 1899.) (No Model.) 3 Sheets-Sheet 2.`

Patented Dec. l2, |899. J. MACPHAIL.

HAY RAKE (Applica-tion med Nov. 16, 1896. Renewed Nov. B, 1899.)

'(No Model.)

3 Sheets-Sheet 3.`

W lzvfof" Jzr ,71460670 k iron by the bolts CZ.

` Ntra Srn'rns armrr JAMES MACPIIAIL, OF BLUE ISLAND, ILLINOIS, ASSIGNOR TO THE PLANO MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS.

HAY-BAKE SPECIFICATION forming part of Letters Patent No. 638,873, dated December 12, 1899.

Application filed November 16, 1896. Rnewed November 8, 1699. Serial No. 736,265. (No model.)

To all whom it may concern:

Be it known that I, J AMES MACPHAIL, a citizen of the United States, residing at Blue Island, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Hay-Rakes, which is fully set forth in the following specification, referencebeing had tothe accompanyingdrawings, in which- Figure 1 is a plan view showing a hay-rake constructed according to my invention. Fig. 2 is a vertical longitudinal section on the line 2 2 of Fig. 1. Fig. 3 is an enlarged plan view of the mounting of the stripper-shaft, raketeeth, &c. Fig. 4 is a vertical section on the line 4 4 of Fig. 1, showing the same parts. Fig. 5 is a detail rear elevation of the axle and its supports. Fig. Gis avertical section onthe line 6 6 of Fig. 5. Fig. 7 is a detail view of one of the strippenshaft bearings. Fig. 8 is a section on the line S 8 of Fig. 1, showing the attachment of the strippers to the strippenshaft. Fig. 9 is a vertical section on the line 9 9 of Fig. 8.

Myinvention relates to hay-rakes, and has for its object to provide improved mechanism for cleaning or stripping the rake-teeth.

Referring to the drawings by letter, A represents the thills or shafts, and B B, rc., the main frame of the hay-rake. The sides of the said frame B are prolonged backward, as at b, to form bearings for the pivotal connection of the main frame with the wheel-frame. The seat B is mounted upon the frame B.

The principal element of the wheel-frame is the angle-iron C, comprising an upper forwardly-extending horizontal flange C and a vertical flange C2. To the ange C2, at each end thereof, is secured one of the axle-brackets D, Which comprises an axle proper, D, upon which is mounted the wheel E; a cup D2, surrounding the said axle D', against which the wheel-hub abuts; two collars D3, and a bracket-plate D4, all of the said parts being formed in asingle casting and adapted to be secured to the flange C2 of the angle- To the said flange C2 of the angle-iron are further attached two brackets F, projecting forward and each provided with a short downwardly-extending arm F and an upwardly-extending arm F2. The arm F is provided with a pinf, which is pivotally mounted in the projection b of the main frame B. The main frame and the wheel-frame are thus pivotally connected. The upper arm F2 of the bracket is provided with the springcontrolled plunger or bufferf@ adapted to contact with the side of the main frame B when the rake is tilted. Upon the angle-iron C is rigidly mounted a lever G, to which is pivoted, as at g, a spring-controlled dog G', adapted to engage 'with the teeth of a segmental rack G2, also pivoted to the lever G, as at g. A connecting-rod II is pivotally secured at one end to the rack-segment G2,'as at 71,and at its other end, as at h', to a hand-lever I. The lever I is pivotally mounted at its lower end, as at t', upon the main frame B. Be-

tween its handle I and its point of connectionV with the connecting-rod I-I the said lever is provided with a lug or stop t; It will be seen that when the hand-lever is thrown upward and forward the main frame is depressed with reference to the wheel-frame and the said wheel-frame is tilted so as to elevate the rake. When the lever I is again thrown back, the rake drops to its normal position and the stop t" bears against the con meeting-rod I-I. G upon the rack G2 will control the position of the rake-teeth in their normal lower position. The said rake-teeth J are mounted in pairs upon the upper flange C of the angleiron C by means of the double clampingplates K, adapted to receive and hold against the said flange the bent ends of the said teeth. Two or more of the said clamping-plates are provided with the bracket extension L. To each bracket is secured a bar M, provided with vertically-elongated apertures M',adapt ed to receive and guide" the rake-teeth.

Referring now more particularly to the strippers, I show five such strippers N, which are preferably metal rods,which may be either of spring metal or not. `Each of the said stripper ends near its butt is driven into the head O of a clamping-pin O", which said head is provided with an aperture o for that purpose. The said head O is beveled, as at o', to fit in the groove o2 of a clamping-washer O2. The

said washer, which is'concave on its lower surface, is adapted to fit on the outside of the An adjustment of the dog ICO stripper rock-shaft P, which is preferably hollow, and is held upon the said rock-shaft by the clamping-pin O', which passes through both the washer and the shaft and is bolted on the opposite side of the latter, preferably with a second washer O3. The strippers N are thus rigidly secured to the rock-shaft P.

To the rearward extension l) of the main frame are secured bracket-castings Q, each of which is provided with a bearing Q', within which the rock-shaft P is mounted and adapted to rock. The said bracket-casting Q is further provided with a short arm Q2, upon the lower surface of which is mounted a lug q. Upon the rock-shaft P, adjacent to each bearing, is bolted a second bracket-casting R, provided with a short arm R', upon the upper surface of which is mounted a lug r, which is thus disposed vertically beneath the lugq. Between these two lugs and surrounding the same is mounted a coiled expansionspring R2, which thus operates to rotate the rock-shaft and to hold the strippers down in a normal position. Alimit to this movement is fixed by providing the bracket-castingR with a lug or stop r', which is adapted to bear against the rear bar of the main'frame B when the strippers are in a normal position. By this construction it will be obvious that the strippers, even when of rigid material, are adapted to yield upwardly under an excess of pressure, and thereby prevent fracture of the same. Furthermore, by making the said strippers of spring metal a double elasticity may be obtained-namely, that of the strip- 'pers themselves and that of their mounting.

It will be obvious that many changes in the details shown may be made without departing from the principle of my invention. I do not therefore limit myself to the specific devices referred to; but

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

1. In a hay-rake, the combination with the frame, of the wheels, the axles therefor, the tooth-supporting bar pi votally mounted in relation to said wheels, the rock-shaft P carrying the stripper-arms N rigidly secured thereto, spring connections between the rock-shaft and the frame for yieldingly holding said rock-shaft and its arms N in a downward position, and stops for preventing the downward movement of the arms N and the shaft P below their normal position, substantially as described.

2. The combination with the frame, of the wheels, the axles therefor, the tooth-supporting bar pivotally mounted in relation to said wheels, the rock-shaft P carrying the stripper-arms rigidly secured thereto, spring connections between the rock-shaft and the frame for yieldingly holding said rock-shaft and its arms N in a downward position, comprising the brackets R and Q having thereon the lugs -r and q and carried by the rock-shaft and the frame respectivelyLand the helically-coiled expanding spring R2 interposed between said lugs, and stops for preventing the downward movement of the arms N and the shaft P below their normal position.

3. In a hay-rake, the rock-shaft P mounted in the main frame in front of the axle; the strippers mounted upon the said rock-shaft, and projecting rearwardly; the bracket R mounted upon the said rock-shaft and provided with an extension R and with a stop r' adapted to contact with the frame to limit the downward movement of the strippers; the bracket Q mounted upon the frame, and provided with an extension Q2; and the expanding spring R2, mounted between the extensions R and Q2 and adapted to hold the strippers yieldingly downward, substantially as described.

4. In a hay-rake, the combination with the frame, of the wheels, the axles therefor, the tooth-supporting bar pivotally mounted in relation to said wheels, the rock-shaft P carrying the spring-metal stripper-arms N rigidly secured thereto, spring connections between the rock-shaft and the frame for yieldingly holding said rock-shaft'and its elastic arms N in a downward position, and stops for preventing the downward movement of the arms N and the shaft P below their normal position, substantially as described.

5. In a ray-rake, the rock-shaft P mounted in the framework of the machine forward of the axle; the rearwardly-projecting strippers N, of spring metal, mounted upon the said rock-shaft; the bracket R mounted upon the said shaft, provided with the rearward extension R and with a forwardly-extending stop r' adapted to contact with the framework and limit the downward movement of the strippers; the bracket Q mounted upon the framework provided with the extension Q2; and the expanding spring R2, mounted between the extensions R and Q2, and adapted to hold the strippers yieldingly downward, substantially as described.

JAMES MACPI'IAIL.

Witnesses:

A. A. MURRAY, FLORA BROM.

IOO

Images