US1194089A

US1194089A - Window-lock

Info

Publication number: US1194089A
Authority: US
Publication date: 1916-08-08
Anticipated expiration: 1933-08-08

Description

GEORGE W. STEIN, OF CHICAGO, ILLINOIS.

WINDOW-LOCK.

Application filed February 14, 1916.

lock.

An object of the invention is to provide a novel form of lock to be attached either to a window frame or one of the sashes, whereby, in the first instance, the lower sash may be locked in closing position and whereby, in the second instance, the upper sash may be partly lowered and opened, to permit of proper ventilation, and then locked against further opening.

Another object is to provide a lock of this character which is simple in construction, easy to manufacture, and effective in carrying out the purpose for which it is designed.

The inventive idea involved is capable of receiving` a variety of mechanical expressions, one of which, for the purpose of illustrating the invention, is shown in the accompanying drawing, in which- A/Figure 1 is a front elevation'of a window frame and sashes showing the invention applied thereto. Fig. 2 is a section on the line 02-2 of Fig. 1, showing the sashes in closed and locked positions. Fig. 3 is a view similar to Fig. 2 showing the lower sash in locked position and the upper sash opened and locked against further opening. Fig. l

is a section on the line 4 4 of Fig. 2.

Referring more particularly to the accompanying drawing in which like reference characters indicate similar parts, the numeral 5 indicates a window or sash frame having the upper and

lower sashes

6 and 7 slidably mounted therein in the ordinary wa plurality of similarly constructed locking devices are preferably attached both to the window frame and the upper sash. The locking devices attached to the window frame are secured to the vertical inner stiles intermediate the ends thereof whereby the upper end of the lower sash may be engaged to lock said sash in closing position. The locking devices secured to the upper sash are adapted to engage the upper end of the lower sash when said upper sash is in both Specification of Letters Patent.

Patented Aug. 8, 1916.

serial No. 78,171.

closed andpartially opened positions. Each locking device includes a bracket 8 secured 1n position by means of a plurality of screws or other fastening elements 9 and upon the inner longitudinal edge of the bracket the same is provided with spaced bearings 10 and 11, the latter being of greater length than the former. The locking member, generally indicated by the nun meral 12, consists of an elongated body portion formed from a single length of rod and having its upper end bent laterally at right angles to the body portion to provide a finger piece or grip 13. The upper end of the body portion 12 adjacent the finger piece 13 is pivotally mounted in the upper bearing 10 of the bracket 8 and the lower end of said body portion is similarly mounted in the bearing 11. The part of said ,body portion between the upper and lower bearings 10 and 11 is bent to provide an intermediate locking portion 14 which is of angular formation, as shown in Fig. 2, the inner part of the locking portion extending at right angles to the body of the locking `member while the extremity 15 of said portion 14 is bent at right angles to said inner part thereof. The lower extremity of each locking member 12 is also bent laterally to provide a lower locking portion 16 having an upwardly and inwardly inclined extremity 17 which may also be employed as a linger grip, if desired.

When both sashes are closed and it is desired to lock the same the locking members 12 secured to the window frame are swung to the position shown in Fig. 2 whereupon the extremity 15 of the locking portion 14: will engage the upper end of the lower sash 7 and prevent the same from being raised. The locking members 12 secured to the upper sash may also be swung to the position shown in Fig. 2 whereupon the lower locking portion 16 thereof will also engage the upper end of the lower sash 7 and not only prevent lowering of the upper sash but also raising of the lower sash. Should it be desired tol open or lower the upper sash, for thepurpose of ventilation, the locking members 12 secured to the upper sash may be swung to the dotted line position shown at the right in Fig. 4L whereupon the lower locking portions 16 of said locking members will be moved to a position out of alinement with the lower sash and the upper locking portions 14 will be swung outwardly into 11G kann alinement with said lower sash. This will permit of the upper sash being lowered until the bottom of the extremity of the locking portion 14E of each locking member comes into contact with the upper end of the lower sash 7 thus preventing further lowering of said upper sash. By letting the locking members 12 secured to the window frame remain in their original positions, above described, the lower sash will still remain locked. For 'purposes of proper ventilation a Ventilating screen of any pre'fer'i'ed'construction may be Isecured lin 'position at the outer and uppei end of the' window frame thus covering the opening made by the lowering of the window sash tothe position just described. In order to lower the upper sash toits lowermost position, or in otherV words, completely open the same, the locking members 12 secured to said upper sashv must be swung to the dotted line position shown at the left of Fig. l whereupon both of the locking portions 14 and 16 will be out of vertical alinement with'the lower sash 7; and when in this position said upper sash Gf may be lowcredii desired.V In order to per- Init the locking members 12 secured to the upper sash to be swung to the position lastdescribed the brackets 8 in, which the locking members are mounted are secured to-the upper sash adjacent the inner edges thereof so that the extremity 15 of the locking portion lt'will clear the inner edge of the sash and project inwardly toward the pane of glass.

The lower sash 7 may be opened by moving the locking members 12 secured to the window frame to the dotted line position shown in Fig. l whereby said lower sash may be completely opened when the locking members 1Q, secured to the upper sash are in the position last described. But the opening of the window may be limited by first swinging the locking members 12 secured tothe up-v per sash to the position shownj at the rightin Fig. L1 whereupon the upper` end of the lower sash will contact the lockingextremities 15 and thus prevent further opening of said lower sash.-

What is claimed is: v l er A locking device 'for 'windows including a pivoted locking member formed from a: single length ofl rod material' and berit atone end to provide a locking poiitioiiladapted lto be swung into and out of the lp'a'th 'ofmove-- ment of one of the sashes', said' member also having intermediatelit's endslanother angupath of movementthereof. 1

" i .L Grito-neil; vv. 'sfriinfrA l Copies of this patentmaiyfbe obtainedv for ve'centsjeach,*addressing the Commissioner of Patents, Washington, D. C.