US2196948A - Window-suspension device - Google Patents

Description

Ap 9, 1940- s'r. GEORGES l.. TREMBLAY WINDOW-SUSPENSION DEVICE Filed March 22, 1938 2 Sheets-Sheet l ATTORNEYS April 9,1940- sT. GEORGES l.. TREMBLAY 2,196,948

WINDOW-SUSPENSION DEVICE Filed March 22, 1938 2 ASheets-Sheet 2 www??? 777 V ATTORNEYS Patented Apr. 9, 1 940 UNITED STATES WINDOW-SUSPENSION DEVICE St. Georges L. Tremblay, Albany, N. Y.

Application March 22,

Z Claims.

My invention relates to window-suspension devices and has as one of the principal objects thereof the provision of a window-suspension device which is simple in construction, durable 5 in use, efficient in operation and economical in manufacture.

Another object of my invention is to provide a device of the character described capable of easy installation and adaptable for use in connection with window-frames and sashes of ordinary construction without substantially modifying the same.

Other objects and advantages will be apparent from the following description, appended claims and annexed drawings.

Referring to the drawings wherein like reference characters designate like parts throughout the several views:

Figure 1 is a vertical sectional view of a portion of a window-frame illustrating my invention as applied thereto.

Figures 2 and 3 are sectional views taken on the lines 2-2 and 3 3 respectively of Figure l. Figures 4, 5 and 6 are detail sectional views taken on the lines 4 4, 5--5 and 6--6 respectively oaf-Figure 2.

-In practicing my invention, I provide a windowframe A, a section of the same being illustrated at 5 and having a stile 6 equipped on the outer faces with spacing strips 1 between which are slidably mounted upper and lower sashes 8 and 9 respectively. The outer face of the lower end section of .the stile, adjacent the lower sash 9, is formed with a pair of spaced grooves l for slidably accommodating therein the end sections of a flexible element or chain H.

The ends of the chain Il are fastened to the lower rails of the sashes by securing devices l2, the latter being formed with oppositely disposed eyed ends. One of the eyed ends of each securing device accommodates therethrough a screw I3 whereby to secure the respective devices to the lower sash railsand the other eyed ends have attached thereto the ends of the chain ll as clearly illustrated in the drawings. The stile 6, adjacent the upper ends of the grooves l0, is formed with slots I 4 through which exn tend lportions of a pair of spaced. pulleys l5 pivotally mounted in frames I6 secured to the rear face of the stile. The rear face of the stile has secured thereto a vertically extending track I?, the latter being positioned between the frames I6.

Slidably connected to the track l1 is a carrier I8 serving as a counterbalance for the upper and 1938, Serial N0. 197,340

(Cl. Iii- 193) lower sashes. The carrier I8 comprises a tubular body I9 having secured to one side thereof a U-shaped member 20 provided with a pair of spaced arms, the outer ends of which are inclined for. engagement by inclined arms formed on the track I1 as clearly illustrated in Figures- 4, 5 and 6 of the drawings whereby to maintain the carrier in connected relation with said track. The upper section of the tubular body I9 has positioned therein a sash weight 2l, the latter being of an ordinary construction. and of a desired weight. However, when the device is used in connection with exceptionally heavy sashes, the upper section of the tubular body may be illed with lead to give said carrier the desired weight. The lower section of the tubular body is bifurcated and has mounted therein a pulley 22 about which is trained the chain Il. A sheet metal box 23, fixed within the bfurcated section of the tubular body, has extending therethrough a pivot pin 24 on which the pulley 22 is rotat-v ably mounted. Obviously, raising or lowering of the sashes serves to operate the carrier relative to the track and to maintain said sashes in adjusted position bythe weight of the carrier.

From the foregoing it will be apparent that my device eliminates from view cords, chains or springs and that the single weight on each side of the window-frame always travels in the same vertical plane. Furthermore, by arranging both of the pulleys I5 intermediate the height of the window-frame, considerable more space is obtained whereby longer sash weights may be used when the sashes are of an exceptional heavy construction.

The design of the supporting pulleys makes it easier to set them in the frame. (A dado cutter of suitable size makes the mortise.) The design of the pulley-boxalso provides a non-binding pulley by folding or wrapping the sheet metal over the end of the rivet or pin.

I claim:

1. A device of the character described, comprising, a pair of spaced pulleys adapted for connection to a window-frame, a track extending between said pulleys, a weighted carrier associated with said track and movable relative thereto, a replacable weight mounted in said carrier, a member carried by said carrier and slidably connecting the latter to said track, a., pulley mounted on said carrier, a chain trained over said last mentioned pulley and having end sections trained over said first mentioned pulleys and adapted for connection with a pair of sashes slidable within said frame whereby to operate mentioned pulleys and adapted v' for connection to said sashes, and fixed means between said pair of spaced pulleys slidably engaging means on said counterbalance and providing free, vertical movement of said counterbalance while preventing lateral movement thereof; whereby to operate said counterbalance to maintain said sashes in adjusted relation by the Weight thereof. l

ST. GEORGES L. TREMBLAY. 10

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