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Publication numberUS423730 A
Publication typeGrant
Publication dateMar 18, 1890
Filing dateApr 11, 1889
Publication numberUS 423730 A, US 423730A, US-A-423730, US423730 A, US423730A
InventorsWilliam B. Charlton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
William b
US 423730 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


Patented Mar. 18,,1890.


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SPECIFICATION forming part of Letters Patent No. 423,730, dated March 18, 1890.

Application filed April 11, 1889- To all whom it may concern:

Be it known that I, WILLIAM B. CHARLTON, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and use- I ful Improvement in Meat, Hammock, or other hook, the latter being adapted to interlock with the former in a manner as will be hereinafter fully set forth.

Figure 1 represents a perspective view of a hook embodying myinvention. Fig. 2 represents a front View of the back plate thereof.

Fig. 3 represents a perspective view of the hook, taken from the rear, the parts being separated. Fig. 4 represents a central vertical section thereof.

Similar letters of reference indicate corresparts in the several figures.

Referring to the drawings, A designates a back plate, having therein a slot B, which may be said to be T-shaped. In the rear of said plate is a recess 0, the wall of which, at the bot-tom thereof, has a depression forming a groove D, it being noticed that the slot B is in communication with the recess 0 and the latter is in communication with the groove D.

E designates a hook having at its back a T-shaped head F, the several parts described being formed of suitable metal or other material.

The operation is as follows: The parts being separated, the hook is presented to the back plate A, as shown-in Fig. 3. The head F, which is in horizontal position, is inserted into the upper limb of the slot B and the hook rotated a quarter-turn, the head F then moving in the recess 0 until it is in upright position. The hook is now lowered, and the lower end of the head F enters and is seated Serial No. 306,870. on) model.)

in the groove D, whereby the hook is prevented from rotation, and as the head stands at a right angle to the. upper limb of the slot B and is in contact with the rear Wall of the plate A above and below said slot it is evident that the hook .is reliably interlocked with said plate. In the downward movement of the hook the neck G of the head F enters the vertical limb B of the slot B and engages with the walls thereof, thus providing additional security for the connection of the hook With the plate.

In order to remove the hook, it is raised so struction, in addition to providing an inex-- pensive and easily-operating device, I dispense with .keys, catches, the, and amalso enabled to support the back of the hook directly against the front faces of the back plate, avoiding wrenching out of the hook, said plate being secured in position by screws or other means in any suitable manner.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is p A hook having a T-shaped head on its shank extending in the direction of the length thereof, in combination with a plate having an opening in its face adapted to receive said head, and a recess in the rearthereof, in which said head can partially rotate, said recess having a groove in its lower end adapted to receive one end of said head, substantially as described.


Referenced by
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US2464149 *Mar 25, 1946Mar 8, 1949Massachusetts Leather ProductsNose block for spectacle cases
US2630651 *Feb 24, 1950Mar 10, 1953Hugh C N McgeeAngler's bait container
US2862778 *Oct 4, 1957Dec 2, 1958H & L Realty CorpBraced leg construction and method of forming same
US2987289 *Feb 25, 1957Jun 6, 1961Wamsley Floyd BHanger
US3129281 *Sep 25, 1962Apr 14, 1964Hardin George WElectric fence insulator and post
US3941343 *Aug 30, 1974Mar 2, 1976Ralph KennedyBracket support assembly
US4082243 *Nov 18, 1976Apr 4, 1978Keeler CorporationCollar attachment for support hook
US4501455 *Jan 15, 1982Feb 26, 1985Honeywell Inc.Locking and extraction mechanism for rack mounted components
US4567546 *Nov 8, 1982Jan 28, 1986All States Plastic Mfg. Co., Inc.Anchor base mounting block
US8109705 *Feb 23, 2007Feb 7, 2012Illinois Tool Works Inc.Twist-lock anchoring fastener
US8308116Jul 16, 2010Nov 13, 2012Liberty Hardware Mfg. Corp.Hanger assembly
US8459472 *Dec 29, 2009Jun 11, 2013Top-Wok Metals Co. Ltd.Keyed twist-lock hook assembly for aperture board
US8522986 *Apr 28, 2010Sep 3, 2013Michael KitchenLocking pegboard
US9138083 *Jul 7, 2014Sep 22, 20154 Ever Level CompanyWall hanger assembly
US9504865Apr 8, 2015Nov 29, 2016Aerialates LLCTrapeze apparatus and method
US20110073730 *Apr 28, 2010Mar 31, 2011Michael KitchenLocking pegboard
US20110155875 *Dec 29, 2009Jun 30, 2011Top-Wok Metals Co. Ltd.Keyed twist-lock hook assembly for aperture board
US20160076285 *Nov 30, 2015Mar 17, 2016Douglas Dynamics, L.L.C.Method and apparatus for installing cutting edges on a v-blade plow
Cooperative ClassificationF16B37/045, Y10S24/53