US2579785A - Casement window hinge - Google Patents

Description

Dec. 25, 1951 2,579,785

J. BROWNLIE ETAL CASEMENT WINDOW HINGE Filed Aug. 14, 1947 Patented Dec. 25, 1951 Brooklyn,` N. Y., ,and Almon`C. Blarney, Rutherford, N.-J.; said Blamey assignor to said Brownlie and said Gerstenzang Application August 14, 1947, serial No. '168,580

This invention relates generally to hinges and more particularly to those of the French sash or easement Window type in which the axis of pivotal movement of the sash element is spaced a substantial distance from the principal planes of the sash element and frame.

In the pivotal mounting of casement type windows, it is 'desirable for a number of reasons that the axis of pivotal movement be spaced a substantial distance from the plane of the Window frame. One of the principal advantages which flows from this construction lies in the fact that a space is provided when the sash element is in an opened position, as for example, one in which the sash element forms 90 degrees with respect to the Window frame. This space permits cleaning both sides of the window pane (not shown) from the interior of the building.

With the increasing use of metal windows by the utilization of materials having a low corrosion factor (such as stainless steel, bronze or aluminum), an intertting of the movable parts is obtained which affords sufficiently low leakage so that weather stripping or gasketing may be eliminated. The maintenance of proper opening and closing movements of the movable sash requires therefore hinges of sufcient'strength and stability. I.

It is therefore among the proncipal objects of the present invention to provide hinge structure which may be manufactured entirely by stamp# ing and forming with the elimination of casting or welding operations. I

Another object herein lies in the provision of hinge structure of the classdescribed which, while light in weight and utilizing aminimum of material, may have high strength and stability.Y

Another object of the invention lies in the provision of hinge structure wherein parts of the hinge are connected to other parts by virtue of, and through their connection with the sash element.

Another object herein lies in the provision of hinge pivot means offering controlled friction and weatherproof qualities.

A feature of the invention lies in the trim appearance presented by the completed device.

Another object herein lies in the provision of truss hinges which may be manufactured in large scale at low cost to have a consequent Wide distribution and use.

These objects and other incidental ends and advantages will more yfully appear in the progress of this disclosure and be pointed out in the appended claim,

1 Claim. (Cl. 16-135) element, with a hinge showing lan embodiment of the invention, mounted thereon. Fig. 2 is a front elevational view of Fig. 1. Fig. 3 is an enlarged view in perspective. Figui is a fragmentary plan view of the structure shown in Fig. 2 with the hinge in an opened position thereof. f

Fig. 5 is a developed plan View of a blank from which the hinge is formed.

Fig. 6 is an enlarged fragmentary vertical sectional view as seen from the plane B-G on Fig. 3.

As will be obvious to those skilled in the art to which the present invention relates, the present hinges may be made in left hand or right hand types, and although a right hand type has been chosen for illustration, -a mere reversal of parts will produce a left hand type.` Where a pair of sashes are swung about .their outer edges, the right hand type shown may be mounted at the upperleft hand edge of the left hand sash element, and correspondingly, a lower left hand hinge may be used at the upper right hand edge of theright sash element.

The hinge, generally indicated by reference character I0, comprises broadly a relatively stationary or first hinge element I I a relatively movable or second hinge element I2; and pivotal interconnecting means I3. While the stationary element II is shown as being connected to the window frame element I4, and the movable element I2 is shown as being connected to the window sash element I5, in certain applications it may be desirable to-reverse this arrangement.

The stationary hinge element II is of irregular configuration, best seen in Fig. 4, and includes an attaching shank I6, shoulders I1 and I8, a relatively inner side edge I9, a relatively outer side edge 2l] and an end 2|. The end 2I is provided with an orifice 22. The shank I6 may be provided With a plurality of orifices 23 and said shank is preferably attached to the sill or lower member 24 by extending through an orifice 25, of cor responding size, in the portion 26. The shank I6 may be attached to the portion 2l by rivets 28 or screws (not shown).

The movable hinge element I2 includes a base member 30, a base member attaching flange 3|, a truss member 32, a truss member attaching flange 33 and an end 34. The base member 39 Vadjacent the end 34 is provided with an oriiice 35. The movable hinge element I2 is preferably 3 fabricated by blanking from sheet stock, a blank indicated by reference character 59a, the external configuration of which is shown on Fig. 5. In the blank 50a, for the purpose of avoiding repetition, certain of the parts corresponding to the parts of the hinge element I2 are given the same reference characters with a suiiix a. By blanking the piece 50a and bending the same through substantially 90 degrees along each of the bends 4l), 4I and 42, the hinge element I2 is quickly and economically produced. The edges 36 and 31 are disposed at an angle of 45 degrees with respect to the bends 4I and 42 .so that in the completed hinge these `eliges Contact each other and cause the truss member '32 to be `disposed at right angles with respect to the base member 3l). This prevents the truss member 32 from moving toward the base member '30 in a forward direction as viewed in Fig. 3.

The flange 3l isprovided with a'plurality of orices 38..and 39 and the rivets 43 and 44 extend through these orifices to .secure the attach-7 ing ange 31 to the 'window sash V'element l5. The flange 33 is provided with a plurality of orices 45 and V46 and therivets 41 'and Y48 extend Ythrough theseorices to secure the attaching flange 33 to the window sash element I5. This makes the portion 49 ofthe window'sash element l a gusset for the flanges 3'I and 33 and obviates the `necessity of welding or other joint connecting lmeans between the juxtaposed edges 3B and 31. Y

AThe means I3 is preferably in the form Aoi? a rivet having a pin portion 52, an upper head 53 and a spun over `enlargement', 54. The stationary element Il is separated from the base member by a middle bearing v55. The head 53 is spaced from the base member 30 by the upper bearing 55 and the hinge element vIl is spaced 4from the enlargement 54 by the lower bearing 51. The middle bearing 55`has a central orifice of sub-l stantially the same diameter as the orices22 and A vand interposed between the borders of said orifices and the pin 52 is a bushingj. The bearings 55, 55 and 51 and the bushing 58 are composed of a textile material impregnated with a synthetic resin preferably of theV phenolic condensation type. TheV said bearings and bushing are relatively non-hygroscopic and act to insulate metal to metal Acontact between the elements II and I2 and the Vmeans I3. By placing the bearings 55-51 and the bushing 58 under substantiallyV no compression at the time that the free terminal of the pin 52 is headed over at 54, a pivotal connection of low friction is vprovided so that the sash element I 5 in an assembled window maybe readily adjusted in angularity with respect to the frame I4 by any suitable Y actuating devices (not shown) well known in the art.

It may thus be seen that there has been provided a novel and useful hinge structure which combines high strength and stability with low Weight and manufacturing costs. The self lubricating qualities of the bearings -51 4and the bushing 5 8 provide for long trouble-free and noiseless operation.

We wish it to be understood that we do not desire tolbe limited to the exact details of construction shown and described, for obvious modications will occur to a person skilled in the art. l

VWe claim: Y :A easement window hinge comprising a flat hinge element having an attaching portion for` Y as a truss therefor, said truss portion having -a laterally 'extending4 attaching ange lying .in a common plane with the attaching iiange oi the base portion and adapted to engage the adjustable Window said attaching :danges having .respectively angle cut edges which engage each other and serve to reinforce one another on their plane of attachment with the adjustable window and hinge pin means'pivotally'securing together the flat hinge lelement and the base portion of the second hinge element.

.1o-HN :BRowNLm .RALPH GERSTENZANG.

ALMON c. BLAMEY.

REFERENCES CITED Y The following .references are Aof record in the le ofthis patent.: n

UNITED STATES PATENTS K i Date Y VNumber NameY D. 100,587 Spencer et al. July 28, 1936 v973,073 Schaal 7.--- Oct. 18, 1919 1,159,378 Heal Nov. I9. 1915 2,162,309 Junghans June 13, 1939 FOREIGN PATENTS l l Number Country Y Date 12,011 Great Britain July '31, '1890

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