US499980A - Holdback attachment for vehicles - Google Patents

Description

(No Model.)

P. O. FRASHER.

HHOLDBAGK ATTACHMENT FOR VEHICLES. No. 499,980. Patented June 20, 1893.

Tn: Noam: virus :11, Putnam-4n. WASNINGYON. I:v c.

UNITED STATES PATENT OFFICE.

FRANKLIN O. FRASHER, OF PETERSBURG, DELAWARE.

HOLDBACK ATTACHMENT FOR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 499,980, dated June 20, 1893. Application filed March 21,1893. Serial No. 46?;046. (No model.)

To all whom it may concern.-

Be it known that I, FRANKLIN O. FRASHER,

a citizen of the United States, residing at Petersburg, in the county of Kent and State of Delaware, have invented new and useful Improvements in Holdback Attachments for :cljhills, of which the following is a specifica- This invention relates to that type of holdback attachments for thills wherein a metallic frame or bracket attached to the thill is provided with a longitudinal slot which at one extremity is enlarged laterally to permit the escape of the head of a loop or eye to which the breeching-strap is attached, if the animal passes from between the thills. In prior constructions of this character the slot is closed at each end and consequently it is impossible to arrange the frame or bracket at the under side of the thill, as if arranged in this manner it is impossible for the loop or eye to automatically free itself from the frame or bracket. For this reason the prior constructions are only applicable to the inner sides of the thills, which is objectionable for several reasons, chiefly because laterally projecting parts are present at the inner sides of the thills which are liable to injure the animal, and further because of the uncertainty of the loop or eye becoming automatically disengaged when the animal passes from between the thills.

The objects of my invention are to avoid the obj ections stated; to provide a novel construction whereby the metallic frame or bracket can be applied to the under side of the thill, with absolute certainty of the loop or eye becoming disengaged therefrom the instant the animal passes from between the thills; to provide novel means for preventing accidental disengagement of the loop or eye from the frame or bracket, and to provide an improved construction wherein the eye or loop is adapted to .lie close to the under side of the thill and thus reduce the danger of breaking the parts if excessive strain is brought to bear thereupon in holding back a vehicle.

To accomplish all these objects my invention involves the features of construction and the combination or arrangement of parts hereinafter described and claimed, reference being made to the accompanying drawings, in which- Figure 1, is a perspective view of my improved hold-back attachment, a broken portion of the thill being exhibited. Fig.2, is a bottom plan view of the same, showing the eye or loop in its norlnalposition. Fig. 3, isa

bottom plan view, omitting the lower plate of the metallic frame or bracket. Fig. at, is a similar view showing the position of the loop or eye in the act of passing from the frame or bracket, and Fig. 5, is a detail longitudinal sectional view of the hold-back attachment.

In order to enable those skilled in the'art to make and use my invention I will now describe the same in detail, referring to the drawings wherein- The numeral 1 indicates a portion of a thill to the under side of which my improved holdback attachment is applied, as will be understood by reference to Fig. l. The frame or bracket of thehold-back attachmentcomprises a base-plate 2, having longitudinal side flanges 3, which embrace and lie closely against the sides of the thill, and a cap-plate 4 secured to the underside of the base-plate,preferably by the screws 5, which serve to secure the baseplate to the under side of the thill. The baseplate is formed with a recess 2, having underout edges 6, Figs. 1 and 5, and the cap-plate contains a diagonal opening 7, Fig. 2, which recess and opening constitute a slot closed at the rear and open at the front for the free escape of the loop or eye 8, to which the breeching strap is connected. The loop or eye lies approximately horizontal in a plane parallel with the under side of the thill, and it is provided with a head, formed, as here shown, of a disk 9, connected with the loop or eye proper by a short shank 10, whereby the loop or eye lies close to the under side of the thill, thus reducing the downward pull on the loop or eye in holding back, and materially increasing the strength, durability, efficiency and usefulness of the device in practical operation.

The edge 12 of the disk 9 is beveled, to accommodate it to the under-cut edges 6, of the recess in thebase-plate, so that when the loop or eye is in position for holdingback a vehicle, the downward strain on the loop or eye is counteracted by the co-acting edges 6 and 12, and likewise strain or pressure is removed from the cap-plate 4. In the construction described and shown the entire strain in bolding back is thrown upon the base-plate at the closed end of the slot, which slot, as before stated, is composed of the recess in the baseplate and the opening 7 in the cap-plate.

The normal positionof the loop or eye in holding back a vehicle, is represented in Figs. 1 and 2. In practice, the breechingstrap is connected with the loop or eye, preferably by a snap hook, and so long as the animal remains properly between the thills, the loop or eye will stand approximately in such position as to be pulled rearward against the closed end of the slot. If, however, the animal should pass from between the thills, the loop or eye will turn and the header disk 9 will rotate and then theforward pull of the breeching strap will move the loop or eye forward, as indicated by the arrow Fig. 4, thereby pulling the loop or eye out of the open end of the slot in a plane parallel with the under side of the thill. This is a very important feature of my invention and distinguishes it from prior constructions, in that I am enabled to apply the slotted frame or bracket to the under side of the thill, thus materially reducing the laterally projecting parts, and placing the loop or eye in such position that it can lie approximately horizontal in aplane parallel with theunder side of the thill. The construction also renders it possible to bring the loop or eye closer to the under side of the thill, which is a very desirable feature.

To prevent accidental disengagement of the loop or eye from the frame or bracket, I

provide the latter with a spring-pressed dog 13, pivoted as at 14, between the base-plate and the cap-plate, and acted upon by alfiat spring 15, which is secured in place by a rivet or pin 16, passing through the cap-plate and base-plate. The spring-pressed dog, when the parts are in normal position, lies in front ofa cut-away part of the head or disk 9, and prevents the latter being accidentally moved out-through the slot of the frame or bracket. If the loop or eye be turned to project forward,

for example as in Fig. 4, the spring-pressed: dog will bear against the beveled periphery of the head or disk and the friction between the parts will be sufficient to prevent accidental disengagement of the loop on eye from the frame or bracket. As here shown, the dog 13 and spring 15 lie in a slottedpart of the capplate, and the dog and spring are protected by the cap-plate and base-plate, as will be understood by reference to Figs-1 and 3.

The head or disk 9 is substantially flat and has a flat bearing against the base -plate,

'frame'adapted to"be' secured to the underside of a thill and composed of a base-plate and a cap-plate having respectively a recess and an opening to form a slot which opens at the front end of said parts, and a loop hav- 8o ingaflat head or disk rotatable between the base-plate and cap-plate and adapted to pull out of the open endof the slot ina plane parallel with the underside of the thill, sub- .stantially as described. 2. A hold-back attachment, consisting of a Zframe, adapted to be secured to the under 'side of athill andihaving a slot which opens lat the front end of the frame, a loop having a head rotatable in the frame and adapted tolgo pull out of the open endof the slot inaplane parallel with .the under side of the thill, and

la spring-pressed dog actingagainstthe rotat- Eable head of the loop to prevent accidental disengagement ofthe latter from the frame, 5 isubstantially'as described.

E 3. A liold-back attachment, consisting of a frame adapted l to be secured to the under side ot a thill and composed of a base-plate and a cap-plate having respectively a recess and an opening to form a slot which opens atthe front end of saidparts, a loop or eye having a head or disk rotatable between the baseplate andcap-plate andfadapted to pull out of the open end of the slot in a plane parallel to 5 with the under side ofthe thill, anda springpressed dog pivotedbetween: the base-plate and cap-plate for acting against the periphcry of the head or disk to preventits accidental movement out of the slot, substantially 1 to as described;

4. A hold-back attachment, consisting. of: aframe adapted to be secured to the under side of a thill and havinga slot which opens at the front endof the frame, aloop or eye lying approximately horizontal in aplane par-h allel with theunder side of the thill and'having a flat head or disk which bears flatly: against the frame and is adapted to rotate A and move out ofthe open end. of the slot in.

a plane parallel with the under side of the thill, a dog pivoted'tothe frame and arranged! to bear against the periphery of the rotatable head "ordisk to prevent accidental movement of the latter out ofthe open end of the slot, :2 5

and a springacting againstthedog to press it inwardly against said head or disk, substantially as describedl 5. A hold-back attachment, consisting of at frame or bracket having undercut edges 6, 0 andaslot open at its frontend;a'loop or eye having a head or disk 9 provided with a beveled edge 12, adapted to rotate in the frame my hand in presence of two subscribing witor bracket, a dog pivoted to the frame or bracket and arranged to bear against the beveled edge of the head or disk, and a spring acting upon the dog to press it inwardly, substantially as described.

In testimony whereof I have hereunto set FRANKLIN O. FRASHER.

Witnesses:

H. L. THORNTON, EDWARD A, PAUL, Sr.

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