US2144106A - Window construction - Google Patents

Description

' Jan. 17, 1939. o. M. EDWARDS ET AL I Y 2,144,105

WINDOW CONSTRUCTION Filed June 24, 1936 -2 Shets-Sheetl Z 2 HZEIQTORS. F951 BY a ATTORNEY 5 0. M. EDWARDS ET AL WINDOW CONSTRUCTION Jan. 17, 1939.

Fild June 24, 1956 2 Sheets-Sheet 2 Patented Jan. 17, 1939 UNITED STATES PATENT OFFICE WINDOW CONSTRUCTION poration of New York Application June 24, 1936, Serial No. 87,058

4 Claims. (Cl. 189-66) This invention relates to window constructions, more particularly to window structures for buildings, as public buildings, hospitals, hotels, oflice buildings, residences, etc., and has for its object a window structure including a compound sash capable of being raised and lowered, as a unit, and including inner and outer sash frames, the inner frame, which carries the glass, being movable into an open position relatively to the outer sash frame, as into an inclined position, for the purpose of providing a ventilating opening.

It further has for its object such a compound sash together with means for preventing the opening or lowering of the compound sash when the inner sash is in open or inclined position, which means is operable by the opening and closing of the inner sash of the compound sash.

It furtherhas for its object a sash lock which looks the sash from being raised and lowered and at the same time locks the inner sash from opening movement or movement to an inclined position.

Other objects appear throughout the specifica tion.

The invention consists in .the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had tothe accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a fragmentary elevation of a Window structure embodying this invention.

Figure 2 is a verticalsectional view on line 2-2, Figure 1.

Figure 3 is a fragmentary sectional View on the plane of line 3-4, Figure 1.

Figure 4 is a fragmentary elevation illustrating a modified way of hinging the inner sash; Figure 5 is a sectional view looking to the left in Figure 4. v

This window construction comprises, generally,

7 a window frame formed with a sash guide, a compound sash movable in the guide and comprising outer and inner sash frames, thev inner sash frame being mounted to have an opening and closing movement in a general direction at a right angle to the plane of the sash to provide ventilation without drafts, and means operable by the moving of the inner sash into open position for locking the sash from movement along 7 the sash guide out of closed position. This locking means is normally arranged out of the vertical plane of a cross bar and is movable into said plane near the cross bar upon a small movement of the inner sash frame from its closed position, so that unless the inner sash frame is closed, the sash can not be raised.

I designates the window frame which may be of any suitable construction and formed with sash guides, the frame here illustrated being of metal. Also, the window structure here illus-- trated includes upper and lower sashes, each of which is capable of being raised and lowered with the top rail of the lower sash and the bottomrail of the upper sash abutting or lapping each other, when both sashes are closed, the bottom rail of the upper sash being a cross bar in. the window structure, against which the top rail of the lower sash abuts or laps when closed. The upper sash may be stationary.

The sash guides here shown are of the interfitting channel and groove type, the window frame having ribs 2 which extend into channels in the edges of the sash.

3 designates the upper sash. The lower sash is acompoundsash and includes an outer sash frame t and an inner sash frame 5 shiftably mounted in the outer sash frame 4 and movable relatively to the frame 4 to provide a ventilating passage without raising the lower sash. The stiles of the upper sash 3 and the outer sash frame 4 of the compound sash are provided with channels, as 6, opening through the edge of each stile, into which channels one of the ribs 2 extend. Suitable non-metallic U-shaped weather strips, as 1, are fixed in the channels 6 to coact with the ribs 2.

The outer frame 4 of the compound sash is provided with a suitable lift handle 8 along its bottom rail and practically being a part thereof. This is shown as extending nearly the full width of the bottom rail. This form of lift handle stiiiens the bottom rail to which the lifting force is applied and also acts to cause the window to lift easily when the lifting force is unevenly applied at one side or the other of the center of the bottom rail. 7

A suitable sash lock I2 is provided on the top rail of the outer sash 4, this coacting with a keeper or latch plate !3 on the bottom rail of the upper sash 3. This sash lock is of the cam type that moves about an upright pivot l4 into and out of locking position. It also operates a lock to hold the inner sash 5 in closed position, when the lock it is operated into locked position.

The inner sash frame 5 fits the outer frame '4 and is preferably pivotally mounted therein at or near its lower edge to swing out of the plane ofthe compound sash. into the position shown in Figure 2, in order to provide ventilation without drafts.

As seen in Figure 2, the inner movable sash frame 5 is hinged at its lower edge, as by a piano hinge at l5, to the upper edge of the bottom rail within the sash frame 4.

One of the features of this window construction is means operated by the movement of the inner sash frame 5 to an open or an inclined position to lock the lower sash from being raised or the upper sash, if it is movable, from being lowered.

One embodiment of this means comprises a link l6 pivoted at each side of the sash frame 5 near the upper end thereof and also pivoted to the stile of the outer frame 4, this link being arranged to lie between the outer edge of the inner frame 5 and the inner edge of the stile of the outer' frame 4, a recess being provided in one of the stiles for the link. The link is pivoted to the stile of the outer frame 4 at IT and is pivotally connected at its inner end at l8 to the stile of the inner frame 5, the link being provided with a slot IQ for receiving the pivot I8. The link I6 is also provided with an arm 20 extending to the opposite side of the pivot I! to that on which the pivot I8 is located and into the plane or path of the upper sash 3 when the inner sash frame 5 is swung to an inclined position. The link I6 is located near the upper end or top rails of the inner and outer sash frames 4, 5 so that when the inner frame 5 is swung into inclined position, the end of the arm 20 is close to the bottom rail of the upper sash 3. Also, the slot I9 terminates short of the pivot I! or in position to delay movement of the arm 20 sufficiently to move out of the path of the bottom rail of the upper sash 3 until the inner frame 5 is in nearly closed position.

It is difficult to close the inner frame 5 to entirely closed position from the outside of the window, and therefore an intruder could not easily or stealthily entirely close the inner sash 5 into the plane of the sash 4 and then raise the lower sash or lower the upper sash. An intruder might easily reach in and unlock the lock l2, if the inner sash 5 were in inclined position, but would have difficulty in raising the sash, because of the difficulty in entirely closing the inner frame 5 into the plane of the outer sash 4.

Suitable spring-pressed poppets 2| in the top rail of the outer sash frame 4 may be provided for coacting with sockets in the upper edge of the top rail of the inner sash 5, to impositively hold the inner frame 5 in closed position. Means is provided for positively locking-the inner sash 5 in closed position, which means is operated by the sash lock 42. This comprises spring-pressed bolts 22 in the top rail of the outer sash frame 4 movable vertically into a socket in the top rail of the inner frame 5, the bolt 22 being moved into its locked position by a cam 23 on the sash lock l2 and coacting with the head 24 of the bolt 22, when the sash lock is operated to lock the upper and lower sashes.

Instead of a piano hinge l5 being used, the inner sash 5 (Figures 4 and 5) may be formed with trunnions 25 near its lower ends, which trunnions extend into sockets 26 in the stiles of the outer frame 4 The extent of pivotal movement is limited by a stop shoulder 26 or edge at the lower end of the plate 21 on the stile of the outer sash 4 abutting against the edgeof a similar plate on the bottom rail of the inner sash frame 5 when the inner sash frame 5 reaches its inclined position. The inner sash frame 5 is provided with a suitable handle 30 at its upper end. The plate 21 extends the length of the stile to lap the joint between the stiles of the inner and outer sash frames. The plate or strip 2! is formed with slots 3| through which the arm 20 of the link I6 extends (Figures 1 and 2).

There is a link H5 at each edge of the inner sash frame 5.

In operation, the sash look I 2 is operated to unlock the inner sash frame 5 and the inner sash frame 5 swung about its axis into inclined position by pulling on the handle 30. This moves the link l6 from a position in line with, or in the plane of, the stiles of the sashes 4, 5. into the position shown in Figure 2, and moves the arm 20 into the plane or into the path of the upper sash 3 in case the upper sash is movable, so that now if an attempt is made to raise the lower sash, the arm 20 would engage the lower rail of the upper sash 3 and block the raising of the lower sash, and also block the lowering of the upper sash, in case the upper sash is movable. A person attempting into get into the room from the outside would therefore have to close the inner sash 5 from inclined position to entirely closed position, and although it is fairly easy to move the inner sash frame 5 from the outside of the window to nearly closed position, it is difficult to move it to entirely closed position without disturbing the occupants of the room. It is necessary to entirely close the inner sash 5, as the arms 20 remain in position to block either the raising of the lower sash and the lowering of the upper sash, until the inner sash frame 5 is moved to completely closed position.

What we claim is:

1. In a window construction, the combination with a window frame having sash guides, of upper and lower sashes slidable in parallel planes in the guides, one being a compound sash consisting of outer and inner sash frames, the inner sash frame being mounted in the outer frame to have an opening and closing movement relatively thereto to provide a ventilating opening, and means operable by the moving of the inner sash frame into open position for locking the lower sash from raising and the upper sash from lowering.

2. In a window construction, the combination with a window frame formed with a sash guide and including a cross rail, of a compound sash movable in the guide and comprising an outer sash frame and an inner sash frame hinged to the outer sash frame and movable into open position relatively thereto, and link means operable by the moving of the inner sash frame into open position for locking the sash from movement in the sash guide, said link means being pivotally connected to the inner edge faces of the stiles of the outer sash frame and to the outer edge of the inner sash frame and including an arm arranged out of the plane of said cross rail and movable into the plane of the same and near said cross rail, when the inner sash is moved into open position.

3. In a window construction, the combination with a window frame formed with a sash guide and including a cross rail, of a compound sash movable in the guide and comprising an outer sash frame and an inner sash frame hinged to the outer sash frame and movable into open position relatively thereto, and link means operable by the moving of the inner sash frame into open position for locking the sash from movement in the sash guide, said link means being pivotally connected to the inner edge faces of the stiles of the outer sash frame and to the outer edge of the inner sash frame and including an arm arranged out of the plane of said cross rail and movable into the plane of the same and near said cross rail, when the inner sash is moved into open position, the connection between' the link and the inner sash including means by which said link is shifted to move said arm out of the plane of the rail only when the inner sash is in nearly closed position. 1

4. In a window construction, the combination with a window frame formed with a sash guide and including a cross rail, of a compound sash movable in the guide and comprising an outer sash frame and an inner sash frame hinged to the outer sash frame and movable into an inclined position relatively thereto, and means operable by the moving of the inner sash frame into an inclined position for locking the sash from movement in the sash guide, said means including a link pivotally connected to the inner edge faces of the stiles of the outer sash frame and to the outer edge of the inner sash frame and having an arm extending to the opposite side of its pivotal connection to the outer frame, to that on which the inner sash is located when in inclined position, said arm being normally arranged out of the plane of said cross rail and movable into the plane of the same and near said cross rail, when the inner sash is moved into inclined position, said link being formed with a lengthwise slot terminating near the pivot thereof for receiving a pivotal connection between the inner sash frame and the link, whereby the said pivotal connection moves along the slot during the opening and closing of the inner sash to and from inclined position, the inner end of the slot being located relatively to the pivot of the link to cause pivotal movement of the link to carry said arm out of the plane of the cross rail only when the inner sash is in nearly closed position.

OLIVER M. EDWARDS. RUSSELL B. NELSON.

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