US734960A - Automatic stirrup-detacher. - Google Patents

Description

No. 734,960. PATENTED JULY 28, 1903. H. B. K. ROSENFELD.

AUTOMATIC-STIRRUP DETACHER.

APPLICATION FILED Nov. s. 1902.

witnesses Nv @9%5 UNITED STATES Patented .Tuly 28, 1903.

PATENTV OFFICE.

AUTOMATIC STIRRUKP-DETACHER.

SPECIFICATION forming part of Letters Patent No. 734,960, dated July 28, 1903.

Application led November 8, 1902. Serial No. 130,609. (No model.)

To all whom, it m/ty/ con/cern:

Be it known that I, HANS B. KURT ROSEN- FELD, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Automatic Stirrup-Detachers, of which the following is a specilication.

This invention relates to an automatic stirrup-detacher for interposition between the stirrup-strap usually employed in connection with a saddle and a hanger-strap attached to the stirrup; and the object in view is to provide means which will reliably operate to retain a stirrup in connected relation to a stirrup-strap of a saddle under normal conditions, but will automatically release the stirrup when abnormal strains or irregular pull is exerted on the stirrup, and thereby avert accidents to riders when thrown or in cases of runaways.

' The invention consists in the construction and arrangement ot the several parts, which will be more fully hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of a portion ot' a stirrup-strap, a hangerstrap for a stirrup, and a part of the latter, showing the improved detacher in operative relation thereto. Fig. 2 is an elevation of the improved detacher, shown broken away in part to illustrate the detail construction and the closure of the frame open in dotted lines.

Similar numerals of reference are employed to indicate corresponding parts in the views.

The numeral 1 designates a stirrup-strap of the form usually attached to a saddle, 2 a stirrup-hanger, and 3 a stirrup. These parts are of usual construction, and the difference in the ordinary means of attaching a stirrup consists in interposing the hanger 2 instead ofsecuring the stirrup 3 directlyto the-strap 1.

The improved detacher comprises a frame 4, having an inner side bar 5 and an upper suspending-bar 6, which has its under side slightly rounded to reduce wear on the strap 1, which engages the same. The frame 4 also has a bottom bar '7 of considerable vertical extent, which is cut away at its inner extremity to form a clearance-slot 8, the lower part of the side bar 5 being curved and projected inwardly to practically assist in the formation of the slot S. The outer end of the suspending-bar 6 has a depending enlargement 9, from which a projection 10 extends outwardly to engage a slot 11 in the upper end of a closing-bar 12, hinged atits lower end to the outer end of the bottom bar 7, the upper walls of the slot 11 and the projection 10 being beveled downwardly to permit the closing-bar 12 to readily clear itself when opened in a manner which will be hereinafter eX- plained. To hold the closing-bar 12 against accidental opening movement under normal conditions, a plate-spring 13, securedto the e lower end of the bottom bar 7, engages the lower hinged end of said bar 12, the inner corner of the latter bar being cut away at its lower end, as at 14, to permit it to be thrown outwardly without obstruction.

A keeper 15 is movably mounted on the upper edge of the bottom bar 7 and comprises a lower bar 16, havingl an upper slot 17, over the greater portion of which a rigid closing-bar 18 immovably extends. The bar lis formed with an ear 19 adjacent its inner end to movably iit into a slot 2O at the inner extremity of the bottom bar 7, close to the clearanceslot- 8, and through the said ear and bottom bar a pivot-pin 2lis passed to permit the keeper to be thrown inwardly and elevate the outer end thereof in such manner as to permit the ready release of the hanger-strap 2, which is normally held thereby. That part of the slot 17 in the bar 16 of the keeper which is not closed by the bar 1S is covered by the freeextremity of a flat spring 22, having its outer free end upturned, as at 23, to avoid the formation of an injuring or cutting projection. The spring 21 extends under and close to the bar 1S and is secured to the innerv vextremity of the bar 16.

As before indicated, the improved detacher is applied by passing the stirrup-strap 1 from the saddle around the suspending-bar 6. The closing-bar 12 is opened and the hanger-strap 2 is inserted in the frame 5 and pressed under the outer end of the spring 2l into the slot 17. The strap 2 is doubled, and therefore passes over the front and rear side of the bottom bar 7. After the hanger-strap 2 is inserted in place, as stated, the bar 12 is closed, and the detacher will be then regularly ap- IOO l plied in operative position.

The tension of the foot of the rider on the stirrup will hold the keeper depressed and in close relation to the upper edge of the bottom bar 7, and under normal conditions,or as long as the hangerstrap 2 is in engagement with the keeper 15, the closing-bar 12 will remain in normal position, as shown in full lines in Figs. 1 and 2. When, however, outward pull of an irregular nature is exerted on the hanger-strap 2, the keeper 15 will be thrown upwardly, so that its inner extremity will move downwardly into the slot 8 and its upper extremity will be free for the outward withd rawal therefrom of the said hanger-strap. The strap being disengaged from the keeper and striking the bar 12 will open the latter and permit the strap to be detached from the frame 4- and release the rider, and thereby avert accident or injury. It will be seen that the keeper maintains the hanger-strap 2 and stirrup 3 in proper position and prevents the said strap from having too loose movement or irregular location in the frame 5, and by providing the clearance-slot S the frame 4 can be materialiy reduced in its dimensions, particularly in a vertical direction.

The improved device will be suitably ornamented by plating, and it is proposed to construct the same of metal to make it strong and durable.

Changes in the details of construction can also be made Withoutdepartiug from the spirit of the invention.

Having thus fully vdescribed the invention, what is claimed as new is- 1. A detacher of the class set forth, comprising a frame having a keeper movably mounted therein and an outer hinged closingbar combined with a stirrup-strap engaging the upper part of the detacher, and a stirrup-hanger normally engaging said keeper.

2. A stirrup-detacher of the class set forth, comprising a frame having an upper suspending-bar, a bottom bar, and inner and outer bars, the outer barbeing hinged at its lower end to the bottom bar, ,a keeper lnovably attached to the bottom bar and normally resting on the upper edge of the latter, and a stirrup-strap and stirrup-hanger respectively engaging the upper bar on the frame and the said keeper.

3. A detacher of the class set forth, comprising a frame with an outer hinged closingbar, and a keeper hinged to the lower part of the frame and located'within the latter and having an upper slot with a spring-closure.

4. A detacher of the class set forth, comprising a frame having an outer closing-bar hinged at its lower end, a bottom bar, and top and inner side bars, and a keeper hinged to the bottom bar and normally resting on the upper edge of the latter and having a slot in the upper portion thereof.

5. A detacher of the class set forth, comprising a frame having an upper suspendingbar, inner and outer side bars and a bottom bar, the outer side bar being hinged at its lower end to the bottom bar, a clearance-slot being formed between a portion of the bottom bar and the inner side bar, and a keeper hinged at its inner end to the upper portion of the bottom bar and having a slot in its upper portion closed by a resilient device.

6. A detacher of the class set forth, comprising a frame with an outer hinged closingbar, and a keeper independent of the closingbar and mounted within the frame, said keeper being movably attached at its inner end whereby it may be thrown upwardly Within the frame.

In testimony whereof I affix my signature in presence ot' two witnesses.

H. B. KURT ROSENFELD.

Witnesses:

THOMAS H. TOPPING, WILLIAM JONES.

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