Concealed hinge

F. H. SCHWARTZ

CONCEALED HINGE

Filed June 18, 1932

Sept. 5, 1933.

1,925,209

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INVENTOR.

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Patented Sept. 5, 1933

1,925,209

UNITED STATES PATENT OFFICE

1,925,209

CONCEALED HINGE

Francis H. Schwartz, Roselle, N. J., assignor to

Joseph Soss, Roselle, N. J.

18, 1932. Serial No. 617,971 (Cl. 16—164)

Application June

Claims.

This invention relates to what are known as concealed hinges employing two butt members countersunk in adjacent surfaces of a stationary support and swinging member with a linkage for 5 coupling the butt members together and for permitting the movement of the swinging member with respect to the stationary support; and the object of the invention is to provide an improved type of linkage between the butt members of the 10 hinge so as to provide for the quick separation of the butt members in the initial operation of moving the swinging member into open position for the purpose of clearing the inner corner portions of the stationary support and swinging 15 member and further to permit the mounting of the butt members in the supports in such manner as to leave a heavy or thick wall structure on the inner surfaces thereof (inner, in this sense, referring to the adjacent sides of the butts when in 20 open position); a further object being to provide a linkage for hinges of the class described consisting of two sets of links, one set being pivoted to one butt member and the other set to the other butt member, the free ends of each set being 25 movably supported in the opposed butt member and each set of links being movably coupled centrally thereof by a dual pin and slot construction, one set of links carrying a pin and operating in elongated arc-shaped slots of the other set of 30 links, and the last named set having a pin operating in a slot in the first named set of links so as to provide the desired movement of the butts with respect to each other; and with these and other objects in view, the invention consists in a hinge 35 of the class and for the purpose specified, which is simple in construction, efficient in use, and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in the follow40 ing specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a side and sectional view of a hinge made according to my invention with the butts in closed position,

Fig. 2 is a section on the line 2—2 of Fig. 1, showing the hinge mounted in a stationary sup50 port and swinging member.

Fig. 3 is a view similar to Fig. 2, showing the parts in different position.

Fig. 4 is a view similar to Fig. 2 showing the hinge fully opened and omitting the supports ³⁵ therefor; and,

Fig. 5 is a view similar to Fig. 2 omitting the supports and showing a modification, also indicating the fully open position of the hinge in dot and dash lines.

In Figs. 1 to 4 inclusive, I have shown a hinge _6Qcomposed of two butts 10 and 11, said butts being of substantially similar form and construction and as shown being composed of cast metal, it being understood, however, that these butts may be composed of sheet metal. ₆₅

Each butt consists of a U-shaped body portion 10 α—11α, the side arms of which include oppositely extending flange portions 10b—llb, having screw holes 10c,. lie, by means of which the respective butts may be secured to a swinging member 12 and a stationary support 13 as indicated in Figs. 2 and 3 of the drawing, said butts being countersunk in the opposed faces of the supports to be concealed when the swinging member or door is in closed position. jfi

Heretofore, in the construction of hinges of the class under consideration, it has been necessary to arrange the side walls lOd, lld, of the butts adjacent the side surfaces 12a, 13a of the supports so as to permit the free swinging move- ₈₀ment of the door or swinging member and prevent the corner portions 12b, 13b from coming in contact with each other. However, with my improved type of hinge forming the subject matter of this invention, it is possible to centralize gg the mounting of the butts in the supports or to arrange said butts well within the side surfaces 12α, 13α of the supports without danger of the corner portions 12b, 13b coming in contact with each other. 90

In practice, I provide an improved linkage for coupling the butt members 10 and 11 together which consists in two sets of links 14 and 15, the links 14 being pivotally mounted in the butt 10 on the pin 16, whereas the links 15 are supported 93 on pivot pins 17 in the butts 11. The free end of the links 14 carries a bearing pin 18, which as seen, in the construction shown in Figs. 1 to 4 inclusive is adapted to move in elongated slots 19 formed in the opposed faces of the channel of 100 the butt 11. The links 15 carry a pin 20 which operates in elongated apertures 21 in the butt 10.

The sets of . links 14 and 15 are also movably coupled with each other centrally thereof by a double pin and slot construction, one pin 22 be- 105 ing carried by and movable with the links 14 and the other pin 23 is carried by and movable with the links 15. The pin 22 operates in elongated arc-shaped slots or channels 24 in the links 15 and the pin 23 operates in corresponding slots or 110

1,925,209 channels 25 in the links 14. The upper end of the pin 22 is headed as seen at 22 and the lower end of the pin 23 corresponding headed as seen at 23α. These heads operate in enlarged por5 tions of the recesses 24, 25 to maintain the upper and lower links against displacement.

When the hinge is in closed position as seen in Figs. 1 and 2 of the drawing, the pins 22 and 23 will be on the extreme outer ends of the slots 10 or recesses 24 and 25 respectively. In the operation of opening the door or swinging member, the links 14 and 15 while swinging on their pivots 16 and 17 will have a relative sliding movement with respect to each other, bringing the pins 22 15 and 23 into a position substantially centrally of the slots 24, 25 as seen in Fig. 3 of the drawing. It will be understood that the pins 18 and 20 have also moved outwardly in the slots 19 and 21 so as to actually throw the hinge butt 10 away from 20 the butt 11, providing a wide clearance space between the inner corner portions of the butts as at x, Fig. 3, so that the corner portions 12b, 13b will clear each other in moving the door or swinging member 12 with respect to the sup25 port 13.

As the butt attached to the swinging member 12 continues to move into its fully open position shown in Fig. 4 of the drawing, the pins 22 and 23 will slide in the slots 24 and 25 to the other 30 ends thereof. I also provide the links 14 and 15 with shoulder portions 26 and 27 respectively which cooperate with the pins 20 and 18 to aid in cnecking the opening movement of the swinging member in addition to the engagement of the ^ΰ8 pins 18 and 20 with the ends of the grooves 19 and 21.

It will be noted that the links of the separate sets 14 and 15 are of the same form and construction, and these links are arranged in alter⁴⁰ nate arrangement with respect to each other with the central enlarged and recessed or apertured portions overlapping as clearly illustrated. At this time, it will be understood that while I have shown a multiplicity of links, that a binge ⁰ may be constructed from a single link in each set, and various methods of attaching and coupling the links to the supports or to butt members attached to supports may be made without 'o ^4rom the spirit of my invention.

In this connection, I have shown in Fig. 5 of the drawing a slight modification wherein two butts 28 and 29 substantially similar to the butts 10 and 11 are employed, and links 30, 31 similar _ all respects to the links 14 and 15 having fixed “° pivots 32, 33 and movable pivots 34 and 35. The latter, instead of operating in elongated slots as in Figs. 1 to 4 inclusive, are supported upon the free ends of links 36 and 37 pivotally mounted ,ςη ^{in t41s butts 29} and 28 respectively as seen at 38 and 39. In this connection it will be understood that two of each of the links 36 and 37 may be employed, one at the upper and lower end of each of the pivot pins 34 and 35, or if desired, a ... number of these links may be employed and -^J spaced between the links 30 and 31 on the pins 34 and 35. The links 30 and 31 also include the pins 40 and 41 and the grooves 42 and 43 similar to the pins and grooves 22, 23, 24 and 25 on the , ,.. linkage shown in Figs. 1 to 4 inclusive.

It will be understood that other means may be employed for guiding the movable pivots of the respective links or link units, and the means centrally of the link units for movably coupling ... the same may be modified to suit the different re quirements to which the hinge may be applied, and various other changes in and modifications of the construction herein shown and described may be made within the scope of the appended claims without departing from the spirit’of my invention or sacrificing its advantages. 80