Spring hinge

Application filed November 10, 1931.

My invention relates to spring hinges and certain objects of the invention are to provide a hinge comprising a pair of leaf members one of which is provided with arms that ⁵ are wider than the arms of the other whereby thick doors may be hinged to comparatively thin casings. Another object is to provide a raising member whereby my hinge may be used for hinging a door to a casing of equal ¹⁰ thickness with the door. Further objects are to provide a hinge one leaf of which is provided with a single cylindrical spring containing member and the other leaf is provided with a stiffener flange thus materially in15 creasing the strength of the hinge and providing bearing means for the ends of the spring.

With the above and other objects in view which will appear as the description pro0 ceeds, the invention consists of the novel construction, adaptation, combination and arrangement of parts hereinafter described and claimed. These objects are accomplished by devices illustrated in the accompanying drawing; wherein:—

Figure 1 is a view in rear elevation of the hinge with a part broken away; Fig. 2 is a view in rear elevation of the channeled raising member that is used when the hinge is ^s- secured to a door and casing of equal thickness; Fig. 3 is a view in horizontal section taken on a broken line 3—3 of Fig. 1 and showing the hinge secured to a door that is thicker than the casing; Fig. 4 is a top plan 3G view showing the hinge secured to a door and casing of equal thickness and wherein the raising member is used; Fig. 5 is a view in perspective of the hinge leaf having the stiffener flange; Fig. 6 is a view in perspective of ⁴⁰ the hinge leaf having the cylindrical container for the spring; Fig. 7 is a view in elevation of the pintle; and Fig. 8 is a view in elevation of the coiled spring.

Referring to the drawing throughout 45 which like reference numerals indicate like parts, the numeral 5 designates the hinge leaf having a cylindrical spring container member 6 which is secured between ears 7 that are formed on arms 8 which are either bent at 50 right angles to the ends of said leaf or are

Serial No. 574,127.

braised, welded or otherwise secured at right angles thereto. The inner edge 9 of said leaf forms a longitudinal shoulder. The cylindrical spring container 6 is provided with upper and lower slots 10 and 11 respectively ⁵⁵for the ends of the spring. The ears 7 have the usual holes 12 for the pintle and the leaf 5 has the usual screw holes 13.

The other leaf 14 of the hinge is provided on its ends with arms 15 which may be bent ⁸⁰at right angles to said leaf or secured thereto at right angles in any desired manner. Said arms are somewhat wider than the arms 8 thus providing abutments or offsets 16 and the arms terminate in ears 17 that respec- ⁶⁵lively fit over the ears 7 of the arms 8. Holes 18 are provided through said ears 17 which register with the holes 12 of said ears 7 and a pintle 19 is installed through all of said holes thus pivotally retaining the two hinge mem- ⁷⁰bers together as will be understood. The abutments or offsets 16 of the arms 15 have shoulders 20 thereon which are formed by bending small metal projections thereon inwardly as most clearly shown in Fig. 5. The ⁷⁵inner edge portion of the leaf 14 is bent inwardly at right angles to form a stiffener flange 21.

When the two hinge members are pivotally connected by the pintle 19 the shoulders 20 80 abut against the inner edge 9 of the leaf 5 thus retaining said leaf in parallel relation with the leaf 14. A coiled spring 22 is installed within the cylindrical container 6 and has its upper end 23 projecting through the 85 slot 10 and bearing against the back of the leaf 5. The lower end portion 24 of said spring projects through the slot 11, bears against the outer edge of the stiffener flange 21, and is bent inwardly to a termination θθ against the back of the leaf 14. Said leaf is provided with the usual screw holes 25.

Referring to Fig. 3 of the drawing, it will be seen that the leaf 5 may be secured to a door 26 that is somewhat thicker than the 05 casing 27, owing to the fact that the arms 15 are considerably wider than the arms 8 thus providing the abutments or offsets 16. This arrangement eliminates the use of wooden blocks which have heretofore been 100

1,892,584 secured to the casing in order to make same the. thickness of the door when using the ordinary hinge with leaves disposed in paral_r lei alignment. Referring to Figs. 2 and 4 ³ of the drawing, I have provided a raising member, designated by the numeral 28 and comprising a piece of sheet metal bent in rectangular form. Said member, is adapted to. fit flush under the leaf 5 and is provided with screw holes 29 that are arranged to resister with the screw holes 13 of said leaf. When said raising member is placed under said leaf and secured to the door 26 by long screws 30 passins through the leaf and raisins member into the door, the device may be used the same as an ordinary hinge in hanging a door to a casing of the same thickness as the door.

. The novelty of mv invention resides principally in the use of the raising member 28, the single cylindrical spring container 6. the st’ffener flange 21. the shoulders 20 engaging the inner edge of the leaf 5, and the abut₂₅ ments or offsets 16 providing means whereby comparatively thick doors may be hinged to thin casings.