US1913343A - Casement sash operating means - Google Patents

Description

June 6, 1933.

J. H. SHEARD CASEMENT SASH OPERATING MEANS Filed March 25. 1931 MN @NH WITNESSES INVENTOR: Jae 0km TTORNEYS.

Patented June 6, 1933 VUNITED s'r-A'rss PATENT OFFICE JOSEPH H. sIIEARI), on PHILADELPHIA, PENNSYLVANIA, ASSIGNOR r DAVID LUP'roN's soNs COMPANY, or PHILADELPHIA, PENNSYLVANIA, A CORPORATION 1-1 I oP PENNsYLvANIA oAsEiyIENrr SASH OPERATING MEANS Application filed March 23, 1931. Serial No. 524,575. V

screw 19 to the web 20 of the sash rail 13 This invention relates to means for operating the pivoted sashes of casement w1ndows and the like; and ithas more particularmreference tometallic'casenients in connectionflwith which protective screens are "used, and wherein the bottom rail of the sash closes against the frame with formation of a hollow therebetween.

invention has for its aim the provission of a simple and easily actuatable operating means for .afmetallic casement such as referred to above, which admits of partial concealment in the hollow betweenthe bottom, rail of the sash and the frame sill rail; which is compact and readily accommodated on the frame sill rail below the screen used with, the window, so that the sash be opened and closed without necessity for removing or otherwise disturbing the screen; and which is furthermore advantageous in that it is out of the way when the window is closed. I

In the. drawing hereunto attached, Iisafragmentary in side elevationvof .a conventional type of metallic casement window fitted with my improved sash operat- 'ing means.

FigbIIisaplan section taken as indicated by the arrowsII-II in Fig. I; and, Fig. III is a detail sectional view taken as indicated by the arrows IIIIII in Fig. II.

The frame and the sash 11 of the case ment herein shown for convenience of i1- lustrating. my invention, are both constructed from metallic rails of Z-cross section, the sash being supported for free swinging movement by hinges whereof one is indicated at 12 in Fig. II. As shown in Fig. III, the bottom rail 13 of the sash 11 closes against the sill rail 14 of the frame 10 with a double weather seal and with formation of an air space or hollow 15 therebetween. The window is in this instance provlded with a screen 16 which 1s secured against the inside of the frame 10 by suitable means not illustrated, p

The operating means, constituting my present invention, comprises an actuating lever 18 which is pivotally connected by a adjacent the sash pivot 12 within the hollow 15; and a slotted bracket 21, on the sill rail 14 of the frame 10 below the screen 16, l

dial portion 18b embodying reversely-curving portions which extends diagonally inward of the window through the bracket 21 and intimately engages the opposite side edges 21a, 21b, of the slot in the said bracket; and a handle portion 180 which lies parallel with the sill rail 14 of the frame lOand is therefore normally out of the way.

The bracket 21 is substantially semi-circular iniplan and of such vertical depth as to bereadily attachable to the sill rail 14 of the frame 10 below the screen 16, by means of screws 22 that extend through apertured ears 23 of said bracket and take into the upstanding fiange 24 of the sill rail 14. The 31,

slot of the bracket isflared outwardly to permit angular movement of the actuating lever 18 and registers with a slot 25 cut through the sill rail flange 24.

To open the window, the handle portion 180 of the actuating lever 18 is grasped, and the said lever swung counter-clockwise. Due to intimate contact with the side edges 21a, 21b of the slot in the bracket 21, as well as to the proportioning and the allocation of the parts, the actuating lever 18 is constrained to swing about a substantially fixed point during the earlier part ofit-s movement, i. e., until the sash 11 is about half open, the maximum power of the lever 18 being thus available in initiating the opening of the sash 11. Swinging ofthe sash 11 through the final halfof its opening movement is accomplished by a forward thrust of the actuatinglever 18 incident to which the latter is afforded variable fulcrum support ina manner obvious from Fig. II of the drawing. Closing of the sash 11 is accomplished conversely, i. e. first by pulling on the actuating lever 18 and finally by turning it clockwise when its maximum power is again available in urging the sash 11 into firm engagement with the casement frame 10.

In order that the sash 11 may be held from displacement under wind pressure in different positions of adjustment, I have provided means on the bracket 21 to clamp the actuating lever 18. has the form of a thumb lever 26 with a screw stud 27 engaged in the lower part of the bracket 21 and adapted to bear upward against the actuating lever 18 after the manner shown in Fig. III.

Having thus described my invention, I claim:

1. Sash operating means for a casement window or the like wherein the bottom rail of the sash closes against the sill rail of the frame with formation of a hollow thercbetween, comprising a bracket having an outwardly-flaring slot secured to the frame sill rail; and an actuating lever having a straight portion normally extending longitudinally within the hollow aforesaid, when the sash is closed, and pivotally connected to the bottom sash rail adjacent the sash hinge; a medial portion normally extending diagonally inward through the slot of the bracket on the sill rail adapted to constrain said lever to swing about a substantially-fixed point by intimate coaction with the flaring sides of the slot aforesaid; and a handle portion beyond the medial portion normally lying parallel to the sill rail.

2. In a casement window, the combination with a window frame comprising a sill rail having an upstanding flange with means affording an outwardly-flaring fulcrum slot, and a sash frame whose bottom rail closes against said flange with formation of a hollow between the rails, of an actuating lever embodying an intermediate section of reversely-curved portions, said lever being pivotally connected at one end to the sash and thence extending lengthwise in the hollow aforesaid, when the sash is closed, and through the frame flange indoors, Via said outwardly-flaring fulcrum slot, whereby said lever is afforded substantially-stationary as well as periodic variable fulcrum support and capacity for sliding movement during opening and closing of the window sash.

3. Sash operating means for a screened casement window or the like wherein the bottom rail of the sash closes against an apertured upstanding flange on the frame sill rail, with formation of a hollow between the rails; comprising a bracket having an outwardly-flaring slot and secured to the frame sill: rail over its opening and below .the

This clamping means screen; and an actuating lever embodying an intermediate section of reversely-curved portions, said lever being pivotally connected at one end to the sash and thence extending lengthwise in said hollow, when the sash is closed, and through the flange opening and the bracket slot indoors; so that the reversely-curving lever section by intimate coaction with the slot flaring sides is afforded substantially stationary as well as periodic variable fulcrum support in the bracket with capacity for sliding movement during opening and closing of the window sash.

4.. Sash operating means for screened casement windows or the like wherein the bottom rail of the sash closes against an apertured upstanding flange on the frame sill rail, with formation of a hollow between said rails; comprising a bracket of substantially semicircular formation with an outwardly-flaring slot therethrough, said bracket being secured to the frame sill rail over the opening therein below the screen; an actuating lever including an intermediate section of reversely-curved contour, said lever being pivotally connected at one end to the sash and thence extending lengthwise in said hollow, when the sash is closed, and through the flange opening and the bracket slot indoors; whereby the reversely-curving portion of the lever by intimate contact with the sides of the bracket flaring slot is afforded substantiallystationary as well as periodic variable fulcrum support in the bracket with capacity for sliding movement during opening and closing of the window sash; and a thumb lever mounted by a screw stud in the bracket aforesaid for coaction with the actuating lever to hold the sash against wind pressure in different positions of adjustment.

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this 9th day of March, 1931.

JOSEPH H. SHEARD.

Images