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Publication numberUS1550404 A
Publication typeGrant
Publication dateAug 18, 1925
Filing dateOct 22, 1923
Priority dateOct 22, 1923
Publication numberUS 1550404 A, US 1550404A, US-A-1550404, US1550404 A, US1550404A
InventorsVincent John H
Original AssigneeVincent John H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Detachable window guard
US 1550404 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Aug. 18, 1925.

J. H. VINCENT DETACHABLE WINDOW GUARD Filed oct, 22. z'sheets-sheet 1 Aug'. 18, 1925.

J. H. VINCENT DETACHABLE WINDOW GUARD- Fled OCT.. 22 1923 2 Sheets-Sheet 2 Jfznyaemwwnfoc Patented Aug. 18, 1925.




Application filed October 22, 1923.

To all whom may concern.'

Beit known that 1, Jol-IN H. VrNcnNT, a citizen ot the United States, residing at St. Joseph, in thel county ol1 Buchanan and State of Missouri, have invented a new and useful Detachable Vvvindow Guard, of which the following is a specification.

This invention aims to provide novel means whereby a window sash may be held against opening beyond a predetermined height, the space below the sash being guarded when the sash is open.

It is within the province oi' the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

l/Vith the above and other objects in view, which will appear as they description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment ot' the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 shows in elevation, a device constructed in accordance with the invention; Figure 2 is a section on the line 2-2 of Figure 1; Figure 3 is a section on the line 3 3 o1" Figure 1;

The numeral 1 marks a window frame including stiles 2, an upper sash 3 being mounted for reciprocation in the frame, and a lower sash 4 being mounted for reciprocation in the frame, the sash 4 including a base rail 5.

1n carrying out the invention there is provided a grating 6 including uprights 7 provided at their upper ends with inwardly eX- tended arms 8. A lower bar 9 extends through the uprights 7 and is secured therein, an upper bar 10 being similarly mounted in the uprights. An intermediate bar 11 is secured in the uprights 7 and is somewhat shorter than the bars 9 and 10. In one of the stiles 2 thimbles 12 are mounted, and the opposite stile 2 is similarly provided with thimbles, as shown in dotted lines in Figure Serial No. 670,220.

1. The bars 9 and 10 of the grating 6 are adapted to be received, at one end, in the thimbles 12 of the left hand stile 2 (Figure 1), the said bars having shoulders 14 which, coacting with the thimbles 12 limit the movement of the bars 9 and 10 to the lett in Figure 1. The bars 9 and 10 are equipped at their right hand ends (Figure 1) with ratchet teeth 15. Casings 16 are slidable on those ends or the bars 9 and 10 which are remote from the shoulders 14, the casings 16 having lingers 17 adapted to enter the thimbles 12 of the right hand stile 2 in Figure 1. Locks 18, which may be key-actuated are carried by the casings 16, the locks controlling pawls 19, adapted to cooperate with the ratchet teeth 15 ot the bars 9 and 1() of the grating 6.

In practical operation, the locks 18 are manipulated to free the pawls 19, the casings16 being slid to the left into the position occupied by the lowermost casing yin Figure 1. The lett handends of the bars 10 and 9 of the grating 6 are pushed to the lett into the thimbles 12 of the left hand stile 2. The casings 16 are slid to the right, in Figure 1, into the position occupied by the uppermost casing in Figure 1, whereupon the lingers 17 of the casings 16 will enter the thimbles 12 of the right hand stile 2, the pawls 19 coacting with the ratchet teeth 15, to hold the casing 16 from being slid to the left, into the position occupied by the lowermost casing in Figure 1. Thus, the grating 6 is securely mounted on the stiles 2 of the frame 1. The arms 8 of the uprights 7 of the casing 6 overhang the base rail 5 of the lower sash 4, as shown in Figure 2, and the result is that the lower sash 4 can be raised a predetermined amount only, the space between the base rail 5 of the lower sash and the bottom portion of the frame 1 being guarded by the grating 6.

`What is claimed is:

1n a device ot the class described, a grating comprising approximately horizontal members and approximately vertical members connected to the horizontal members in spaced relation to the ends of the horifzontal members, the vertical members being supplied et their upper ends with rigid rearA wzudy extended arms so shaped as te Qoop-erzlte with the upper edge oi the base rail of u window sash, thereby to limit the upwardly movement of the sash, the horizontal members hin/'ing` racks at their ends7 easings slidable upon the ends o? he horizontal members and equipped with ingers adapted to enter he stiles of e Window frame, parvis carried by the casings and Cooperating with he racks, und locks carried by the Casings uid controlling 'he pawls.

in testimony that I Claim the foregoing as my own, have hereto aiixed my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2620526 *Feb 2, 1950Dec 9, 1952Stukenborg Louis CWindow guard
US4283881 *Jun 5, 1980Aug 18, 1981Moore Charles ECasement window security guard
US4593492 *Aug 28, 1984Jun 10, 1986Peter LumenelloRemovable window security guard
US4848030 *Aug 24, 1988Jul 18, 1989Bennett Thomas DRemovable window guard assembly
US5487237 *Aug 2, 1994Jan 30, 1996Martin, Jr.; BillSecurity device for buildings
US6050031 *Apr 23, 1997Apr 18, 2000J. W. TechnologiesApparatus and method for preventing unauthorized entry into a structure through an opening containing an air conditioner
EP0119971A2 *Mar 20, 1984Sep 26, 1984MECCANICA INVICTA S.r.L.Movable grille for windows
U.S. Classification49/57
International ClassificationE06B9/01
Cooperative ClassificationE06B9/01
European ClassificationE06B9/01