US1612462A - Locking hinge - Google Patents

Description

" Dec. 28 1926. 1,612,462

J. w. MUMFORD LOCKING HINGE Filed Feb. 8. 1924 ATTORNEYS.

' ring to the drawings:

Patented Dec. 28, 1926.

JOHN \V. MUMFOR'D, OF PHILADELPHIA, PENNSYLVANIA.

LOCKING HINGE.

Application filed February a, 1924. Serial No. 691,375.

My invention consists of a hinge which is composed of butts or leaves and knuckles, the latter being provided with series of interengaging tongues and grooves adapted to lock said knuckles and consequently the hinge, and thus the article to which a hinge is applied in various positions say in the fully opened and closed and partly opened and closed condition of said article as will be found desirable in the case of cabinet tops or covers, desk lids, and the like.

The invention is satisfactorily illustrated in the accompanying drawing, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific details shown and described, as long as they are within the spirit or scope of the claim.

Figures 1 and 2 represent face views of locking hinges embodying my invention.

Figures 3 and 4 represent perspective views of the opposite members of the hinge separated and on an enlarged scale.

Figure 5 represents a transverse section on line 5-5 Figure 8.

Figure 6 represents a on line 6-6 Figure 4.

Figures 7-13 inclusive represent top diagrammatic views showing the different positions in which the butts may be placed, and the hinge accordingly locked in said positions.

Similar corresponding parts in the figures.

transverse section numerals of reference indicate Referleaves or butts of the hinges, and 2 designates the knuckles thereof, said knuckles being connected by a pintle as usual. On the upper and lower terminals of said knuckles of one butt are the tongues 8 and the grooves 4 which alternate with said tongues, it being noticed that in Figures 1, 3, and 5, two of said grooves extend parallel with the butt 1, and two of said grooves extend at a right angle to said butt. This places the alternating tongues 3 oblique to said butt.

In Figures 2, 4, and 6, two of the tongues 3 extend parallel with the butt 1, and two of said tongues extend at a right angle to said butt. This places the alternating grooves oblique to said butt.

Now taking two butts with the knuckles as formed in Figures 3 and 4, and connecting them with the pintle, the butts may turn as usual as in a hinge, the tongues passing 1 designates the each other until the desired position of the butts is obtained. Then one of the butts is moved so that the tongues of one register with the grooves of the other, thus locking the butts and preventing movement thereof. The butts may thus be fully closed and locked thereat as in Figure 7, opened and locked to partial extent as in Figure 8, fully opened and looked as in Figure 9, say for tops or covers of talking machine cabinets. In the case of a desk lid, or other article on which a hinge is used one of the butts may be turned over to a greater extent from the position shown in Figure 9, to that shown in Figure 10.

Again, by taking two butts both having its knuckles equipped with the tongues and grooves as in Figures 3 and 5, or by taking two butts both having its knuckles equipped with the tongues and grooves as in Figures 4 and 6, the butts may be placed in various intermediate positions and locked thereat, as in Figures 11, 12 and 13 according as it may be desired to open or close a cabinet cover, a lid, or another article on which a hinge is used.

To close a hinge, the butts are moved sufficiently to remove the tongues from the grooves, thus unlocking said tongues when the butts may be turned with the article to which the hinge is applied and secured, and the butts then moved to cause interengagement of the tongues and grooves, and thus the hinge is locked in the position to which the butts and the article are placed when closed.

It is to be particularly noted that this hinge is designed for use with cabinet Work wherein the lid, covers or doors are generally or often hinged on a horizontal line so that the cover will swing in a vertical plane and as the articles included in cabinet work are often placed close to the walls of a room it is desirable that the hinge shall lock when one of its butts is moved lengthwise in either direction to overcome the necessity of reversing the article where a wall may interfere with the locking of its cover if moved toward one side. While I am aware that looking hinges for doors and the like have been heretofore used and patented I do not know of a hinge particularly adapted for cabinet work one butt of which may be moved to either side for completing the locking thereof in any one of a number of positions.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

A looking hinge comprising a pair of butts, one of said butts having a pair of 5 spaced knuckles, radially arranged alternate tongues and grooves on the inner terminals or edges of said knuckles, said grooves lying at right angles on planes extending obliquely to the plane occupied by the hinge butt,

1 a knuckle carried by the other hinge butt for disposition between the knuckle of the first mentioned hinge butt, radially disposed alternate tongues and grooves on both terminals or edges of the second mentioned knuckle, certain of said grooves lying on a plane parallel to the hinge butt With adjacent grooves lying at right angles thereto, and a pin connecting the hinge butts in slidable relation. v

JOHN W. MUMFORD,

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