US279846A - Olives vanoeman - Google Patents

Description

(No Model.)

0, VANORMAN.

DOUBLE TREE.

No. 279,846. Patented June 19,1883.

Ill

UNITED STATES PATEN T Orricn.

OLIVER VANORMAN, OF RAOINE, WISCONSIN, ASSIGNOR OF ONE-HALF TO THE I-IURLBUT MANUFACTURING COMPANY, OF SAME PLACE.

DOUBLE-TREE.

SPECIFICATION forming part of Letters Patent No. 279,846, dated June 19, 1883. Application filed March 9, 1853. (No modulo To all whom it may concern:

Be it known that-I, OLIVER VANORMAN, of Racine, in the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in Double-Trees; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to coupling-irons for connecting whiffletrecs with the double-tree, the object being to provide a simple and cheap form of such irons, adapted to be readily applied, and forming twoj oints, one at the double tree and the otherbetween the double-tree and whiffletree.

The invention consists in a particular form of casting or iron forming a clip intended to centrally embrace the whiffletree, in combination with straps connecting said clip with the doubletree, together with two bolts, one 0011- necting the clip with the straps and the other connecting the straps with the double-tree, th us forming two independent joints, as stated.

It also consists in special features of construction of the parts at the points where the clip unites with the connectingstrap, as will hereinafter more fully appear.

111 the accompanying drawings, Figure 1 is a perspective view, showing the end of a doubletree and a portion of awhiflletree-ooupling, together with the irons uniting them, and constructed as proposed by my invention. Fig.

2 is a view of the clip intended to embrace the whiflletree. Fig. 3 is a vertical section through the said coupling and the parts thereby connected.

A is a double-tree, and B a whiffletree. C C are two straps, connected to the double-tree by means of a clevis-bolt, D and E is a clipiron which centrally embraces the whiffletree, and forms a connection for the pivotal attachment of the said straps C thereto by avertical bolt, F. The said clip-iron E is usually a malleable casting, though it may be wrought, and it is formed in the extended shape shown in Fig. 2, wherein it'will be observed that the said iron is curved near its ends'to conform with the curve of the rear face of the whiffletree, when centrally bent to embrace thelatter,

as shown in Figs. 1 and 2. Said iron is provided with terminal hubs E, having their axes transverse to the general longitudinal axis of bolt F, which passes through the said hubs and the ends of the two strap-irons G, and which serves both to secure the said straps pivotally to the clip and to bind the clip to the whiffletree. The ends of the hubs E are preferably extended at e, as shown in the drawings, and are adapted to vfit into recesses 0, formed in the ends of the straps C, so that any transverse strain will be taken off the bolt F and fall directly 011 the said hubs. The ends of thehubs are also preferably made conical, and the recesses c in the ends of the straps of corresponding shape, so that bytightening the nut f upon the end ofthe bolt F any wear in the parts may be taken up and a close-fitting joint main tained. The straps O are attached to the double-tree by means of a bolt,- D, which, as

shown in the drawings, is in the form of a feathered clevis-bolt, constructed in a wellknown manner, so that it may be passed through oblongapertures in the straps C and the double tree, the said straps being reversed when the bolt is inserted, and serving to lock the boltin place, when they are turned into their normal position, by notches d (1, formed in the feather 011 said bolt. 1

One of the advantages of the construction described is found in the fact that the principal movement of the joint will be at the j unction of the straps with the clip, wherethe friction is of metal upon metal, and not wholly at the junction of the straps with the doubletree, where the movement of the straps tends to mar the surface of the wood.

By the preferred construction of the connection between the clip and the straps, embracing the extended hubs and recessed straps, a simple and strong pivot-joint is formed in which there is no transverse strain on the connecting-bolt, and which can be readily tightened. The construction of the connection to the whiffietree is rendered very simple by the use of a single bolt, both to retain the ends of the straps in place and to clamp the clip around the whit'fletree, whether or not the peculiar eonstruetion last described is employed.

1 claim as my invention 1. The combination, with the whifl'letree and a double-tree, of a clip, E, constructed to en circle the whiifletree, and provided with apertured hubs, straps 0, attached to the d oubletree, and a single pivot and tightening bolt uniting the said straps to the clip-hubs, substantially as described.

2. The combination, with a whiffletree and a double-tree, of a clip, E, provided. with apertured hubs E, straps 0, attached to the doubletree, and having their ends recessed to fit the extensions of said hubs 1*], and a bolt for \Vitnesses:

G. XV. Ronenas, G. B. XVINTER, Jr.

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