US1305119A - Window construction - Google Patents

Description

ELMER E. KILMER, OF CLEVELAND, OHIO.

WINDOW CONSTRUCTION.

Specification of Letters Patent.

Patented May 2?, 1919.

Application filed July 25, 1914, Serial No. 853,063. Renewed October 23, 1918. Serial No. 259,459.

To all whom it may concern:

Be it known that I, ELMER E. KILMER, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Window Construction, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present improvements relate to window construction in general, and in particular to a window of the type which is now finding such general favor with the public, and which comprises means which permit the sash to be swung inwardly into the room about an axis disposed at some point in the lower portion of the sash, this movement permitting a well distributed entrance of air into the room for purposes of ventilation, and also permitting the sash to be swung into a horizontal position when desired for the purpose of cleaning.

In such types of window construction the pivotal axis about which the window is swung includes usually a small block or plate which is free to swing only when the window is in its lowermost position, and if the window is swung to any great extent when raised this action causes a breakage in some part of the pivotal means. It is to prevent such accidents that I have designed the present invention. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Figure 1 is a vertical section through a window casing and sash showing the window when in slightly raised position, and illustrating certain of the means which permit the inward swinging of the window; Fig. 2 is a similar section but showing the sash when swung through a slight angle and when not in its lowermost position; Fig. 3 is a transverse horizontal section on the line 33, Fig. 2; and Fig. 4: is a view in perspective of one improved form of catch which comprises a part of the means constituting the present invention.

In Fig. 1 there is shown a window casing 1 in which there are slidably mounted an upper sash 2 and a lower sash 3. It is possible to swing the lower sash 3 into the room by reason of the stops 4 which take the place of the usual fixed weather-strips and which are pivotally attached to the sides 5 of the window casing by means of hinges 6. It is considered unnecessary to show the specific means which permit the lower sash to be swung inwardly, as there are numerous constructions which will permit of this operation, and it is only necessary to state that such means are positioned in the lower part of the window and thus provide a pivotal axis for the lower sash adjacent to the lower part of the window casing. It should furthermore be stated that the lower sash 3 can only properly be swung inward without injury to the fixture when said sash is in its lowermost position. As illustrating one such type of swinging window, reference may be had to U. S. Patent 984,990, issued to W. H. l/Vorst and myself, although it will be distinctly understood that I do not limit the use of the pres ent improvements to windows equipped with the specific means shown in said patent.

In Fig. 1 there is shown in the side 5 of the window casing a stop or catch comprising a disk 7 which is suitably attached to the casing and which is provided with a pivoted catch 8, such catch being normally projected into the space through which the sash 3 is swung inward by a coil spring 9. This catch 8 prevents the lower sash from falling inward except when the catch is depressed by the operator, but does not prevent the sash from being swung inward when the same is in a raised position, nor does it in any way give notive to the operator that the sash has not been moved into its proper or lowermost position for swingmg. g

To secure this much desired result I provide therefor an inverted L-shaped groove in the side of the lower sash 3. Such groove consists of a vertical portion 10 connecting at its upper end with a horizontal portion 11 leading to the outer side of the sash. The pivoted catch 8 cooperates with this groove to prevent the sash from being swung inward more than a few degrees except when the sash has been moved into its lowest position. The operation of these means to secure this end will be readily seen. 7 As the sash is moved inward after depressing the catch 8 the latter permits the sa'shto slide 1 along the outer face 12 of the catch until groove is opposite to the portionlO ofthe this part of the catch, moved outwardly by gaging in the groove and preventing further swinging of the window in either direction. The operator is thus apprised that something is wrong by the refusal of the sash to be further moved inward, and will readily comprehend that the sash has not been moved into its lowest position. The operator can then slide the sash downward until its lowermost limit has been reached, which will bring the horizontal portion 11 of the groove in line with the catch 8 thus permitting the window to be swung inward.

The simplicity andeffectiveness of this means of making this type of window construction fool-proof will be readily apparent from the foregoing description, and will when the latter is be recognized by those skilled in the art andv conversant with this general type of window construction as being an important step 1n rendering this type of construction generallypopular and serviceable. In the past it has been found almost impossible to teach the users to always make sure that the window its lowest position behas been moved into fore swlnglng, and the result has been that of cases the fixtures in a very large number have been broken and the. users have been disgusted with the operation of the window fixtures, although thesame are, when properly used, a considerable advance over the former type of merely sliding construction, since they afford better ventilation and a safer and more convenient mode of cleaning the windows.

Attention is called to the particular form of catch which I have provided in this construction. It is impractical to construct these catches of large size, and the result has been that a cheap and small catch has had to be used. Some means must be provided for normally maintaining the catch in the position shown in Figs. 3 and 4, and this means has consisted of the coil spring 9 which is bent around the pivot pin 15 of the catch 8, and is then carried along parallel to the face 16 of the catch, and has its outer end 17 bent across the other face of the catch. A certain difiiculty has been experi- Copies of this patent may be obtained for the spring 9 thus eneled off the upper face of the catch 8 away from the corner at which the spring is bent over the same, and have also bent this pordown parallel to the bev tion of the spring eled part ofthe catch, which construction eliminates thediiiiculty which has been described. V 1

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the'means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In a window construction, the combination of a casing; a sash sli'dably mounted therein and adapted to beswu'ng inward about its lower end; a catch resiliently mounted in said casing and adapted to pre-- vent the swinging of said sash beyond a certain point until manually released; and said sash being provided with a groove adapted to'cooperatewithsaid catch to pro vent the swinging of said sash beyond a certain point except whensaid sashhas first been moved into 1t's lowest position.

2. In a window construction, thje'c'ombination of a casing; a sash slidably mounted therein and adapted to be swung inward about its lower end; a catclrresilie'ntly mounted in said casing andadapted to pre vent the swinging of said sash beyond a certain point until manna L-groove adapted to receive and cooperate with s'aidcatch to prevent the swinging of five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

ly released; and. said sash being provided with an inverted

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