US372485A - Heney m - Google Patents

Description

(No Model.)

H. M. OLIVER.

WHIFFLBTREE HOOK.

No. 372,486. Patented Nov. 1, 1887. I

BY My mATTYS ll'NrTED STATES PATENT ErcE.

HENRY M. OLIVER, OF NEVARK, NEYV JERSEY.

WHlFFLETREE-HOOK.

SPECIFICATION forming part of Letters Patent No. 372,485, dated November 1, 1887.

Serial No. 241,940. (No model.)

T ct whom it may concern.-

Be it known that I, HENRY M. OLIVER, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in \VhifiletreeHooks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference I being had to the accompanying drawings, and

to letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in whiffletrec-hooks, and is designed to provide a hook of simple construction, and one which will securely retain the traccloop in position, and which will also readily permit the insertion of said trace-loop into the hook.

In the accompanying sheet of drawings, in which similar letters of reference indicate correspondingparts in each of the several views, Figure l is a side elevation of my improved whitiletree-hook and a portion of the whittletree to which it is secured. Fig. 2 is a longitudinal section taken vertically and centrally through Fig. 1. Fig. 3 is a view similar to Fig. 2, showing, however, the locking-bar in its open position. Fig. I is an elevation of the front end of the hook. Fig. 5 is a section taken through line a, Fig. 3. Fig. 6 is a see tional view illustrating a different form and construct-ion of my improved hook, but embodying the same principles of invention.

In the said figures, A indicates the Whittletree, to the ends of which the whitlletree-hooks are secured. I

B indicates the body of the hook, which receives the end of the whiffletree, and O designatcs the hook portion, which receives the trace-hook, and which projects in some of the constructions shown from the end of the body portion of the hook.

D indicates the lockingbar, which projects from the body portion of the hook across the opening between said body portion and the end of the hook, and which acts to retain the traceloop in engagement with the said hook.

As indicated in Figs. 2 and 3, the lockingbar consists of an angular portion,d,the hooked end (1, and the roundedend (Z which is of smaller diameter than the angular portion, forming ashoulder, (1. The locking-bar moves reciprocally within the chamber 7), formed in the body portion of the hook, and around the portion (1 of the locking-bar, between the shoulders d and the end of the chamber 1), is arranged a spring, I), which acts to press the locking-bar across the opening of the hook against the end of the hook O, as indicated.

The chamber I) andthe angular portion d are preferably formed as indicated in crosssection in Fig. 5, to prevent the locking-bar from turning within the chamber, and at the same time permits its free longitudinal sliding movement.

The hooked end d of the locking-bar is formed with a recess, d, the purpose of which will be described more fully hereinafter in setting forth the operation of my invention.

The body portion of the hook is secured to the whifllctree in any suitable or wellknown manner.

In Fig. 6 is illustrated a form of construction in which the hook portion Oprojects from the side of the body portion B, instead of from the end, as heretofore described. In this construction thebody portion is provided with a chamber, I), similar to that lettered bin Figs. 2 and 3, but which, instead of extending longitudinally within the body portion, extends transversely across and within said body portion, being preferably of the same cross-section as said above-described chamber B. The form of the locking-bar in this construction is similar-tothatpreviouslydescribed,thehooked end thereof,however,being somewhat different in form, as will be seen by reference to Fig. 6. In securing this latter form of hook upon the whiftletree the end of the whiflietree is slotted a suitable distance to receive the chamber If, as will be understood.

In applying the trace-loop to the hook the said loop is pressed against the hooked end of the locking-bar into the recess (1*, and by such movement the loekingbar is re-pressed into the chamber 1), thus permitting theloop tobe drawn down over the hook O. In releasing the said loop from the hook O the hooked end of the bar acts as a finger-piece to enable the said locking-bar to be drawn back into the chamber 1), thus leaving the opening clear hetween the end of the hook G and the body portion, as indicated in Fig. 3, for the separation or removal of the trace-loop. This operation is similar in both of the forms of construction, as shown in the drawings. To steady and support the end of thelocking-bar the said end is notched at (1 to receive a projection, c, on the end of the hook, as indicated in Figs. 1 to 3, inclusive. This construction also renders the loop less liable to accidentally slip out between the end of said bar and hook.

Having thus described myinvention, whatI claim as new isy 1. A whiffletreehook consisting ofa tubular body portion, B, having a bolt-receiving chambertherein,angularincross section andprovided with a link or trace-receiving hook formed integrally therewith and. projecting therefrom, a bolt or looking-bar formed angularly in cross-section, arranged in said boltreeeivi ng chamber and provided with a hooked end, d, and a spring arranged in said bolt or lookingbar chamber and engaging with said bar, substantially as and for the purposes set forth.

2. A whiffletree-hook consisting ofa tubular ,body portion, B, having a b'olt-receivingchamher therein, angular in cross-section and provided with a link or trace-receiving hook Witnesses: V

FREDK. F. CAMPBELL, FREDK. G. FRAENTZEL.

Images