US1790765A

US1790765A - Hook latch

Info

Publication number: US1790765A
Authority: US
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03

Description

Feb. 3,1931. 5, p ow 1,790,765

HOOK LATCH Filed July 1, 1929 %7&\\\\\\\\\\\ A 6 j a Inventor Aitorney Patented Feb. 3, 1931 ERNEST R. PROW, OF MEMPHIS, TENNESSEE HOOK LATCH Application filed July 1,

This invention relates to hook latches and an object of the invention is to provide a latch for a rotatable open hook commonly utilized on screen doors, windows, screens and the like to prevent the hook from being displaced from the eyelet by unauthorized persons.

()ther objects of the invention are to provide in a manner as hereinafter set forth a hook latch of the character referred to, which is very simple in its construction, adapted for fabrication in one stamping operation, thoroughly reliable for its intended use, strong, compact and durable, and'comparatively inexpensive to manufacture and install.

With the foregoing and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts as will be hereinafter more specifically described and illustrated in the accompanying drawings, wherein is disclosed an embodiment of the invention, but it is to be understood that changes, variations and modifications may be resorted to, without departing from the spirit of the claim hereunto appended.

In the drawings, wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is a fragmentary portion of adoor and a door frame, illustrating an application of the present invention to a hook and eye applied respectively to the door and the frame.

Figure 2 is a horizontal section taken substantially on line 22 and looking downwardly on the hook.

Figure 3 is a perspective view of the device in accordance with the present invention, detached from the hook.

Referring to the drawing in detail, l indicates one end of a door, and 5 indicates the door frame of any conventional construction, wherein the door a swings with respect to the frame 5.

While the present invention is shown in the drawings applied to the door, it is within the contemplation of the invention to be applied to a hook and eyelet attached to windows or other closures. ed as at 7 on its inner end with a screw edge 8, which is anchored in the door 4 adjacent the A hook 6 is swivelly connect-' 1929. ."Serial No. 375,079.

free edge thereof. Intermediatetlie ends of l the hook is a substantially straight'portion, which terminates in its outer end in a curved section '9, having the customary depending prong or bill 10, merging with the curved portion. The depending prong 10 is adapted to be removably inserted in thefopening of the eye 11 anchored in the door frame 5 and when the hook is in locked position, the eye 11 is adapted to be seated in thecurved portion 9. I

The swivelled inner .end 7. of the hook is so spaced with respect to the eye 11 that the prong 10'and curved section 9 register with the opening. therein to provide detachable engagement with the eye 11. p

The latch in accordance with the present invention is indicated generally at 12 and consists of a flat body portion 13, intermediate the opposite ends thereof. The body portion 13 merges with an upwardly offset sleeve 14: at

oneend which is circumposed about the elongated portion of the hook 6, in slidable relationtherewith. 1 The other end of the body portion 13 is provided with a longitudinally extendingslot 15 formed centrally with respect to the body portion, between the'opposite edges thereof and opening through the body portion oppositely to the sleeve 14. The plate-like body portion adjacent the slot is folded over flatly upon itself as at 16, 17 to provide reinforcements adjacent the slot to strengthen the metal. of the body portionaround the slot. p

The width at the slotted end of the body. portion is the same as the intermediate portion. The purpose of having the sleeve 14 upwardly ofiset with respect to the plane of the body portion is to provide clearance when the sleeve 14 slides upon the hook 6. It will be seen from Figure 3 that the formation of the latch 12 is very simple inasmuch as the entire construction may be formed of a single stamping operation.

In the manufacture and use of the present invention, the latch 12 may be stamped in any quantities and the sleeve 14 thereafter bent around the elongated portion of the hook 6, in slidable relation thereto. In the position shown in Figure 1 of the drawing, wherein the hook is coupled with the eye 11,

the latch 12 is moved outwardly u on the hook until the prong is receive in the slot 15, whereby the hook cannot be raised out of the eye 11. To permit the hook to be detached from the eye 11, the latch 12 is slid inwardly upon the elongated body of the hook 6, until the prong 10 is free of the slot 15 andout of the path of the eye, whereupon the hook may be then removed from the 10 eye 11. r

It is to be understood that by describing in detail herein any particular form, structure, or arrangement, it is not intended to limit the invention beyond the terms of the 15 claim or the requirements of the prior art.

I claim:

A latch for application to a hook adapted to be hinged upon a door and engaged in an eye on a door frame, comprising a plate havr ing at one end its edges rolled over toward each other to provide a sleeve for slidable engagement on the shank of the hook, the flat end of said plate having a slot in its outer extremityand the portions at the opposite sides ofthe slot over turned to provide reinforcements adapted to engage the opposite sides of the bill of the hook and beneath the eye in which the bill rests.

In testimony whereof I aflixmy signature. 0 ERNEST R. PROW.