US1858345A - Automatic window fastener - Google Patents

Description

y 1932- w. M. SPINDLER 1,858,345

AUTOMATIC WINDOW FASTENER Filed Jan. 18, 19-30 2 SheGtS-ShGGt 1' I M RT L km A TTORNEYS.

, y 1932- w. M. SPINDLER ,85

AUTOMATIC WINDOW FASTENER Filed Jan. 18, 1950 2 Sheets-Sheet 2 IN VEN TOR.

A TTORNEYSQ til Patented May 17, 1932 WILLIAIVI M. SPINDLER, OF NEW ORLEANS, LOUISIANA AUTOMATIC WINDOW .FASTENER Application filed J'anuary 18, 1930. Serial No. 421,838.

This invention relates to window fasteners or latches and has special reference to an automatic or self latching window latch adapted for use in connection with sliding sash.

One important object of the invention is to provide an improved general construction of latches of this class.

A second important object of the invention is to provide an improved latch of this description so arranged that the act of closing the window will effect latching of the same so that one cannot, without deliberate intention, leave the window unlatched when closing the same.

A third important object of the invention is to provide, in connection with such a latch novel means whereby the latch may, if desired, be rendered inoperative as to securing the window when it is closed.

WVith the above and other objects in view, as will be presently apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and

Figure l is an elevation, from the inside, of a window frame and its sashes and showing the application of the device thereto.

Figure 2 is a greatly enlarged section on the line 22 of Figure 1.

Figure 3 is a View similar to Figure 2 but showing one side of the latch housing removed to disclose the working parts, the de vice being shown in latching position.

Figure 4 is a view similar to Figure 3 but with the parts in released position.

Figure 5 is a detail section on the line 5-5 of Figure 2 and showing the latch in plan.

Figure 6 is a face view of the keeper and latch actuating dog carried thereby, the dog being in position to cause engagement of the latch proper with the keeper.

Figure 7 is a view similar to Figure 6 but with the dog thrown into inoperative position for releasing the latch from thekeeper' if'the window be closed and for preventing latching of the window upon closing if the window be open.

Figure 8'is a face view of the latch housing from the'outer side of the same.

Figure 9 is a section through the latch housing of a modifiedform of the device and showing the working parts in elevation.

Figure 10 is a View similar to Figure 9 but showing a second modification.

Figure 11 is an elevation of the rear end of the modification shown in Figure 10.

In the embodiments of the invent-ion herein disclosed it will be seen that the device is shown as appliedto an ordinary type of window having a frame 10 having the usual sliding sashes 11. The upper sash has the side stiles 12 and the bottom or meeting rail 13, the lower sashbeing similarly provided with side stiles 11 and a top or meeting rail 15.

The device itself consists of two parts, a latch and its housing and a keeper and its dog. The keeper consists of a base plate 16 which is gained into one of the stiles 12 adjacent the meeting rail 13 and is there secured by the screws 17.

Projecting inwardly of the window from the lower part of this base is a lug 18 provided on its under side with a channel 19 and this lug constitutes the part of the keeper that is engaged by thelatch proper in latching position. The upper edge of this lug is undercut, as shown in Figures 2, 3 and 4, to receive the bevelled under edge of a dog 20 secured by a pivot 21 at one of its lower corners to the base 16. This dognormally lies transversely of the base as shown in Figure 6 but it may be raised to the osition shown in Figure 7, the free edge 0 the dog being corrugated so as to afford ready engagement by the thumb of the operator as may be seen at 22. Also, the dog is provided near the pivot with a stop lug 23 so that when the dog is in raised position this lug 23 will engage against the side of the lug 18 and thus ment of the dog in one direction, the lug 18 also limiting movement of the dog in the opposite direction. The purpose of the dog be- .ing swingingly mounted in this manner will be presently explained.

limit move- 9 of the lower sash by the screws 26. Proecting outwardly from the upper part of this housing in the direction of the upper sash is a plunger 27 having a bevelled nose28, the bevel being on the under side of the nose. This plunger has a stem 29 which slides through the back .wall of the housing and is surrounded by a coiled compression spring 30 by which the plunger is urgedoutwardly.

Depending from this plunger is a lug .31 having a notch 32 extending upwardlyfrom its lower edge. In the form of theinvention shown in Figures3 and 4 this notch receives the upper end of a lever 33 mounted intermediate it-s ends on a pivot 34 secured in the sides of the housing. The lower end of this lever is extended forwardly to project out of an opening in the front wall of the housing so that when thus projected it mayengage under the lug..18 and enter-the channel 19. In the form of the invention shown in Figure 9 the notch 32 receives the upper end of a lever 35 pivoted on a pin 36 and having its lower end engaging in a notch 37 formed in the upper face of a sliding hook'38 which slides in and out of a suitable opening in the front wall of the housing, the rear end of this hook sliding through a partition 39 fixed within the housing. The forward end of this hook 38, like the lower hook end ofthe lever 38, engages in the channel 19 when projected forwardly.

In each of these modifications the arrangement is such that whenever the plunger 27 is protracted the hook is retracted and cannot engage the keeper to latch the window. WVhen, however, the plunger is forced back against the action of the springthe hook will be protracted and will thus be in latching position. The dog 20 is the element of the "mechanism which efiectsthis forcing of the plunger inwardly since, when the dog is turned down as in Figure 6, the bevel nose of the plunger engages the dog as the window is moved to closed position, this engagement taking place just before the hookis in position to engage beneath the lug 18. Thus, as the window is closed the hook is forced outwardly and engages the keeper thus automatically latching the window- WVhen it is desired to open the windowthe dog is thrown up to the positionofFigure T whereupon the plunger is protracted by the spring and the hook is retracted. If it be desired to close the window without latching it, it is merely necessary to raise the dog before closing the window so. that the plunger will remain protracted and the hook retracted even if the window is closed.

In the form of the invention shown in Figures 10 and 11 there is provided a housing 40 similar to the housings previously described and having a plunger 41 mounted to slide through the front and rear walls. The forward end of this plunger is squared and provided with a bevelled nose 42 and a coiled spring 43 urges the plunger into keeper engaging position. A lug 44 projects downwardly from the squared portion of the plunger to engage the upper forked end 45 of a hook member 46 pivot-ed within the easing as at 47. A button 48 is formed on the rear end of this plunger and a locking arm 49 is-pivoted to the rear face of the housing 40 as at 50 so that it may swing between the free position shown in full lines in Figure 11 and the locking position. By this-means, the operation being otherwise the same as in the other forms, the plunger may be held from protraction so that the hook cannot disengage from the keeper and thus the window cannot be raised by a person outside the house. It will be noted from Figure 11 that the safety arm automatically engages loeneath the button upon the plunger being retracted, the lower end of the arm being Weighted for this purpose.

There has .thus been provided a simple and eflicient device of the kind described and for the purpose specified.

It is obvious that many minor changes may be made in the form and construction of the invention without departing from the material principles thereof. It is not therefore desired to confinethe invention to the exact form herein shown and described but it is desired to include all such as properly come within the scope of the claims.

Having thus described the invention, what is claimed as new, is

.1 ,A window fastener including a keeper and'a latch respectively adapted to be secured to parts of a window movable toward and from each other to closeand open the Window, said latch including a housing, a

latch hook mounted in the housing for protraction therefrom intolatching engagement with the keeper, a plunger normally pro-- tracted from said housing and having a bevelled nose engaging the keeper upon closing the window to retract the plunger, and ops erative connection between the latch hook and plunger to protract the hook as the plunger is retracted.

2. A window fastener including a keeper and a latch respectively adapted to be secured to parts ofna window movable toward and from each other to close and open the window, said latch including a housing, a latch hook mounted in the housing for protraction therefrom int-o latching engagement with the keeper, a plunger normally. protracted from said housing and having a bevelled nose engaging the keeper upon closing the window to retract the plunger, operative connectimi betweenthelatch hook and plunger tOiPJQ-Of tract the hook as the plunger is retracted, and a spring urging said plunger to protracted position.

3. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a latch hook movable into and out of latching engagement with O the keeper, and means engageable with the keeper upon closing of the window to lllOVo the latch hook into said engagement, said keeper including a member movable manually into and out of the path of said means to actuate the means when in the path thereof.

4. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a latch hook movable into and out of latching engagement with the keeper, means engageable with the keeper upon closing of the window to move the latch hook into said engagement, and a spring urging the latch book out of engagement with said keeper, said keeper including a member movable manually into and out of the path of said means to actuate the means when in the path thereof.

0 5. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a housing, a latch 5 hook mounted in the housing for protraction therefrom into latching engagement with the keeper, a plunger normally protracted from said housing and having a bevelled nose engaging the keeper upon closing the window to retract the plunger, and operative connection between the latch hook and plunger to protract the hook as the plunger is retracted, said keeper including a member movable manually into and out of the path of said plunger to actuate the plunger when in the path thereof.

6. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a housing, a latch hook mounted in the housing for protraction therefrom into latching engagement with the keeper, a plunger normally protracted from said housing and having a bevelled nose engaging the keeper upon closing the window to retract the plunger, operative connection between the latch hook and plunger to pro tract the hook as the plunger is retracted, and a spring urging said plunger to protracted position, said keeper including a member movable manually into and out of the path of said plunger to actuate the plunger when in the path thereof.

5 7. A window fastener including a keeper and a-latch respectively adapted to be securedto parts of a window movable toward and from each'otherto close and open the window, said latch including a latch hook movable into and out of latching engagement with the keeper, a plungerengageable with the keeper upon closing of the window to move the latch hook into said engagement, and a manually releasable stop engaging the plunger upon retraction thereof to hold the same against protraction.

8. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a latch hook movable into and out of latching engage ment with the keeper, means engageable with the keeper upon closing of the window to move the latch hook into said engagement, and a stop for holding the hook in keeper engaging position, said stop being positioned for manual release.

9. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a latch hook movable into and out of latching engagement with the keeper, a plunger engageable with the keeper upon closing of the window to move the latch hook into said engagement, a spring urging the latch hook out of engagement with said keeper, and a manually releasable stop engaging the plunger upon retraction thereof to hold the same against protraction.

10. A window fastener including a keeper and a latch respectively adapted to be secured to parts of a window movable toward and from each other to close and open the window, said latch including a housing, a latch hook mounted in the housing for protraction therefrom into latching engagement with the keeper, a plunger engageable with the keeper upon closing of the window to protract the latch hook, said keeper including a member movable manually into and out of the path of said means to actuate the means when in the path thereof, and a manually releasable stop engaging the plunger upon retraction thereof to hold the same against protraction.

11. A window fastener including a keeper and a latch respectively adapted to be secured to theupper and lower sash of a window having sliding sash, said latch including a housing having a plunger mounted in its upper part provided with a normally protracted nose positioned to engage the keeper upon closing movement of the window and held in retracted position by the keeper when the window is closed, a latch hook in the lower part of the housing in normal retracted 4 .mamw

position "and engggeable beneath the-keeper when protracted, and an "operative connection between the latch hook ma 1 plunger :to protract the hook .115 the plunger moves to retracted'position.

In testimony whereofI-aflix my signature.

XVILLIAM M. SBINDLER.

Images