US471239A - Horse hay-rake - Google Patents

Description

Q (No Model.)

, 0. HYATT.

HORSE HAY RAKE.

N0. 471,239. Patented Mar. 22, 1892.

'SEIKKQE a 5 ea 'Exw rma:

UNrrn TATES ATENT OFFICE.

CHARLES M. HYATT, OF MINNEAPOLIS, MINNESOTA.

HORSE HAY-RAKE.'

SPECIFICATION forming part of Letters Patent No. 471,239, dated March 22, 1892.

Application filed November 30, 1891. Serial No. 413,553. (No model.)

To all whom it may concern:

Be it known that I, CHARLES M. HYATT, of Minneapolis,- in the county of Hen nepin and State of Minnesota, have invented certain Improvements in Horse Hay-Rakes, of which the following is a specification.

My invention-relates to wheeled horse hayrakes, and especially to means for yieldingly securing the rake-teeth and at the same time looking them firmly.

The object of the invention is to provide a more simple and durable spring connection for each tooth, whereby the teeth are made Wholly independent of one another, and, further, to reduce the cost of hay-rakes.

To this end my invention consists, in general, in the constructions and combinations hereinafter described, and particularly pointed out in the claims.

The invention will be more readily understood by reference to the accompanying drawings, forming a part hereof, in which Figure 1 is a sectional elevation of a hayrake embodying my invention. Fig. 2 is a side elevation of one of my devices adapted to yieldingly secure the rake-tooth upon the cross-bar of the machine, the cross-bar being shown in section. Fig. 3 is a rear elevation in section on the line m x of Fig. 2. Fig. 4 is a horizontal section of the upper casting of the device on the line y y of Fig. 2, the hook being removed. Fig. 5 is a plan view of the lower casting detached.

My invention may be employed upon any hay-rake having a cross-bar 2, and I will not therefore particularly describe the construction and operation of the machine shown in Fig. 1. The rake-teeth 3 are of the usual form, the upper ends thereof being provided with the extreme ends 4, bent at right angles to the same'and adapted to occupy horizontal positions. These ends are in practice about two inches long, and each is held within a sleeve 5, formed integrally with and upon one side of the casting 6. The rake-tooth 3 is prevented from moving sidewise, so as to disengage the end 4: from the sleeve, by means of the lug 7, provided on the other side of the casting 6 and extending up to or above the top of the tooth-rod. I do not rely upon the spring of the tooth itself,but arrange a spring in connection with the hinge, whereby the tooth is permitted a much greater vertical movement.

The rear portion of the casting 6 is provided with the vertical lug 8, upon which the rod 3 is adapted to rest, and, further, the casting has the rearwardly-projecting guide lug or ear 9, which has the hole 10, and is situated at one side of the tooth, the near edge of the hole being substantially in line with the inner side of the tooth. As shown in Fig. 2, this casting 6 is secured upon the cross-bar2 by the bolt 11, which passes down through a centrally-arranged hole. therein and is secured on the under side of the nut 12. The casting 6 has the lugs or depending shoulder 13 and let to engage the forward and rear sides of the bar2and adapted to prevent the twisting of the casting thereon. Underneath the bar 2, and also secured by the nut 12, I also provide the smaller casting or plate 15, hav ing the hole 16 for the bolt and the shoulder or lug 17 to engage the rear side of the bar, as shown. This plate is provided with the lug 17 which is thrown down or formed beneath the line of the plate and also to one side of the center thereof, so that the hole 18 in the lug is practically concentric with that numbered 10 in the upper one. The hook 19, having its top strengthened by the rib 20,'is adaptedto engage the upper side of the rod and has the long shank 21 passing down through the openings 10 and 1S and Whereon the coiled spring '22 is arranged between the washers 23 and 24. The spring is secured by means of the spring-pin 25, arranged beneath the lower washer 24. There are several holes to receive this pin, so that the tension of the spring may be adjusted as desired. Upward movement of the rake-tooth is under ordinary circumstances prevented 'by the tension of the spring 22 acting upon the same through the hook 19; but upon an unusual strain the tension of the spring 22 yields to that of the tooth, thereby allowing the tooth to move upward and pass over an obstacle on the ground. The lower endof the shank 21 is provided with the T-head 27, adapted to engage the lower side of the lug l7 and limit the vertical movement of the hook. This prevents removal of the shank and also resultsin saving the life of the spring. Notches 28 are provided in the lower casting at the sides of the opening 18 to allow the head 27 to pass through the same. The upper opening, being larger, is provided only with one notch 29. After the hook has been set down over the rod 3 and the head 27 turned at right angles with the enlarged portions of the openings it will be seen that the shank cannot be withdrawn. The advantages of this construction lie in the ease With which the parts may be assembled; in the saving of metal, owing to their simple and light construction; in ease with which a tooth may be removed, it being simply necessary to push up on the lower end of the shank and turn the hook into line with the end of the rod, after which it may be thrown up into the dotted position of Fig. 2 and be disengaged therefrom by withdrawing the end 4 from its sleeve. Its further advantages are strength, durability, and neatness.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. The'combination, with the rake-tooth and the cross-bar, of a sleeve arranged in line with said bar, said rake-tooth provided with an end 4 to be inserted in said sleeve, a lug 7 for holdthe same in place, a spring-hook to engage the rake-tooth, and astop for limiting vertical movement of said hook, substantially as described.

2. The combination, with the cross-bar 2 and the rake-tooth 3, having the end at, of the casting 6, provided with the sleeve 5 and lug 7, means for fastening the same on the top of said bar, a lug 8 for the tooth-rod to rest on, guide-lugs 9 and 17, the hook 19, having the shank 21 arranged in openings in said guidelugs, and a spring 22, arranged beneath the lug 9 and adapted to hold the hook firmly in engagement with the rod, substantially as described.

3. The combination, with the casting 6, of the bar 2,whereon the same is secured, means for hinging the upper end of the rake-tooth thereon, the lower casting or plate 15, secured on the lower side of the bar and having the lug 17, provided with an opening 18, the upper casting provided Witha lug 9, having an opening concentric therewith, the hook to engage the tooth and having a shank 21 passing through said opening, a coiled spring arranged about the same, and a pin for securing the same on said shank, said lugs 9 and 17 being arranged at one side with respect to the centers of their casting and said castings or plates provided with lugs or shoulders to engage the sides of said cross-bar, all substantially as described.

1. The combination, with the bar 2, of the tooth 3, having the end 4 at right angles thereto, the casting 6, provided with the sleeve 5, wherein said end is contained, a lug 7, provided on the casting to engage the tooth, the lower plate or casting 15, said plates provided with lugs 9 and 17, respectively having openings and provided with the T-head 27, said openings provided With the notches to permit the insertion of the head, shoulder or lugs on said plates or castings to engage the bar 2, a spring 22, arranged on said shank, and a key 25 for fastening the same, said plates being secured on said bar by suitable bolts, substantially as described.

In testimony whereof I have hereunto set my hand this 20th day of November, 1891.

CHARLES M. HYATT.

In presence of I. G. IIAWLEY, F. S. LYON.

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