US790317A - Draw-hook for harness or the like. - Google Patents

Description

I v lPATENTED MAY 23, 1905.

H.- RUPPERT. DRAW HOOK FOR HARNESS OR THE LIKE.

APPLIIOATION FILED APR.11, 1904i WHNEJEEESY: I IN'QBNIUHI v I @u/o ov J I I I UNITED STATES Patented May 23, 1905.

HANS RUPPERT. OF FUERTH, GERMANY,

FRIEDRICH BERGDOLT, OF

ASSIGNOR TO LEONHARD MUNICH, GERMANY.

DRAW-HOOK FOR HARNESS OR THE LIKE.

SPECIFICATION forming part of Letters Patent N0. 790,317, dated May 23, 1905.

Application filed April 11 1904. Serial No- 83- To all whom it may concern:

Be it known that I, HANs RUrPEnT, locksmlth, whose residence is Simonstrasse 7 Fuerth, Bavaria, in the Empire of German have invented certain new and useful Im-.

scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in detachable unions for harness and the like, and has for its object the provision of a union whereby the separable members are at all times locked, the said members being also normally prevented from becoming disconnected. Draw hooks and eyes of this type have been so constructed that accidental disconnection under normal conditions could be revented; but such hooks have not heretoore been so constructed that separable members were held in operative positions.

The object of my invention is to provide a detachable union wherebythe separable parts or members are not only prevented from becoming accidentally disconnected, but are maintained in operative alinement. Thus in my improved device the connective union can never be broken, because ofthe fact that 'the members have been swung out of an operatlve pos1t1on and are made to sustain their load in such non-operative position.

My invention will be more fully described in connection with the accompanying drawings and will be more particularly pointed out in the appended claims.

In the drawings, Figure 1 shows in side elevation one member of the detachable union adapted for direct attachment with the whiffietree or similar parts. Fig. 2 is a sectional "view of the parts shown in Figul, also illustrating in connection therewith the companion member of the union in the position in which it is placed when the parts are secured together. Fig. 3 is a detail view of the hook Fig. 4 is a plan view position. Fig. 5 is a view in side elevation, showing the parts in the same position illustrated i n Fig. 4. Fig. 6 is a view of a modified form of hook. Fig. 7 is a plan view showing the application of my improved hook in connection with a harness.

Like parts are designated by similar characters of reference throughout the dififerent figures of the drawings.

My invention comprises generally a slotted member a, which, as shown, is adapted to be secured to the end of a 'whiffletree or the terminals or connectible parts of a harness and which will hereinafter be referred to as the eye member. The other or companion of the union consists, as shown, of ahook-shaped bar of metal or like material.

In the application of my invention as shown in Fig. 7 the eye member a is secured to the end of a whiffletree, while the hook member is secured to one end of a rope tug.

It will be understood that the invention is capable of various applications to a harness and that I do not wish to be limited to this particular application.

As shown, the eye member a is formed of a single strip or length of sheet metal which is bent upon itself in a manner to bring the ends into contact throughout approximately three-fourths of their length; The remaining or middle portion of the strip is spread in a manner to form a closed loop adapted for direct attachment to the whiflietree. This is a feature of decided practical and commercial importance, since it does away with the necessity of providing a separate and distinct member for securing this portion of the union in place. The ends of the strip of metal of which the eye member of the union is formed are provided with elongated slots adapted when the said member is collapsed to bring the slots of the respective ends into register, thereby forming a single elongated slot extending substantially throughout the length of the eye end of the member. The

said slot throughout a greater portion of its length is uniform in size and width and at its inner end is provided with an enlarged and preferably circular portion.

The hook member comprises generally a flat hook-shaped body a, the tail of which is provided with an attaching-eye, said hook bein substantially e ual in thickness to the widtli of the slot (1. aid flat portion of the hook is sufficiently loose in the slot (1 to permit the member to be attached, but does not permit the hook c to rotate therein or to assume other than a parallel or operative position. Thus it will be seen that if the tug becomes slack and the hook is forced into a retracted position, so that it engages the inner end I) of the slot, the flat portion of the hook will still be in engagement with the reduced portion of the slot d and will be held in a position of operative union. The hook is provided with a cylindric portion it near its outer end, which is preferably of sufiieient size to rotate freely in the reduced end at, thereby permitting the hook to be inserted and withdrawn from the eye. The outer end of said hook is provided with a knob or head f, which, as shown, is ovoid in form and ii adapted to fit snugly in the part b of the s ot.

By reference to Fig. 2 it will be seen that when the detachable members of the union are being connected the hook is brought into a position generally at right angles to the loop the head or knob fbeing inserted through the enlarged portion b of the slot in a manner to bring the cylindric portion h in a position of register with the reduced end (1. It will be noted that the flat portion of the hook could not be brought into register with the reduced end (1, as said hook is at this time occupying an angular position not a position of alinement with the slot in said eye member. When the hook is moved outwardly, so that the part it occu ies an extreme and opposite position in the s ot, the hook 0 may be turned a sufiicient distance to bring the flat portion into a registering position with said slot. The hook 0 will then be in a position to be engaged with the eye, as shown in Figs. 4 and 5, and any oscillating movement of the hook tending to disconnect the same from the eye will be prevented by reason of the fact that the diameter of the knobf exceeds the width of the slot d, and its oblong construction will prevent its withdrawal through the enlarged end I). It will thus be seen that after the hook and eye are brought into a position of operative union it will not only be impossible to unlock them, (excepting as shown in Fig. 2,) but it will also be impossible to twist or turn them out of operative alinement.

It will be seen from the foregoing that my invention as herein shown comprises a draw- 'hook adapted to perform its function in an effective manner and, being composed of two parts, may be very cheaply constructed.

While I have herein shown and described a sin le embodiment of the invention, I do not WISTI to be limited thereto, as it will be ob vious that departures may be readily made therefrom without departing from the spirit of the invention. Therefore That I claim, and desire to secure by Letters Patent, is

1. A detachable union comprising a slot ted member, the slot having an enlarged and a reduced portion and being uniform in size throughout its reduced portion, a hook provided with a flat body portion fitting nonrotatively in the reduced portion of said slot, said hook having on one end an ovoid knob or head capable of passing through the enlarged portion of said slot said head exceeding in diameter the reduced portion of said slot, said hook having an intermediate cylindric portion uniting said knob and flat body portion and reduced in size with respect to said knob, said intermediate cylindric portion fitting snugly within the reduced portion of said slot and being ea )able of rotating and moving back and fort 1 therein, said intermediate portion permitting the flat body portion of the hook to be swung into and out of alinement with said slotted member.

2. A detachable union comprising a slotted member, the slot having an enlarged and a reduced portion, a hook provided with a flat body portion fitting non-rotatively in the reduced portion of said slot and having on one end a knob or head capable of passing through the enlarged portion of the slot, said hook having an intermediate portion uniting said knob and flat body portion, said. intermediate portion being reduced with respect to said knob and ca )able of passing back and forth in the reduce portion of said slot, said intermediate portion permitting the flat body portion of said hook to be swung into and out of alinement with the slotted member.

3. A detachable union comprising a member formed of a single piece of sheet metal the ends thereof being bent together in a manner to form a loop portion at one end of said member, the said ends being slotted and united together in a manner to bring the slots of each end in register to form a single slot in. said member, said slot being enlarged at one end and being uniformly reduced throughout the remainder of its length, a hook provided with a flat body portion fitting nonrotatively in the reduced portion of said slot, said flat portion of the hook maintaining the same in parallel relation with said slot and having on its hooked end an ovoid knob or head capable of passing through the enlarged portion of said slot, said head exceeding in diameter the reduced portion of said slot, said hook having an intermediate cylindric portion uniting said knob and flat body portion of the hook and reduced in size with respect to said knob, said intermediate cylindric portion fitting snugly within the reduced portion of said slot and being capable of rotating and of moving back and forth therein, said intermediate portion permitting the flat body portion of the hook to be swung into ITO member.

and out of-parallel relation with said slotted Wait 4. A detachable union comprising a member formed of a single piece of sheet metal the ends thereof being bent together to form an open loop atone end of said member, the

said ends being slotted and united in a manher to bring the slots of each end in register to form a single slot having an enlarged and reduced portion, a hook provided With a fiat body portion fitting non-rotatively in the reduced portion of said slot andhaving on one end a knob or head capable of passing through the enlarged portion of the slot, said hook having an intermediate portion uniting said knob and flat body ortion said inter- HANS RUPPERT. Witnesses ALEX WLLLE,

MAX ScHNEIDER.

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