US2670923A - Window sash lifter - Google Patents

Description

March 1954 F. F. CHILES WINDOW SASH LIFTER Filed Dec. 6, 1950 INVENTOR I M- AI'IOfi/VEYJ Far-i Patented Mar. 2, 1954 UNITED STATES PATENT OFFICE ,WINDOW SASH LIFTER Frank F.-Chiles, Fort Thomas, Ky.

Application December 6, 1950, Serial No. 199,531

2 Claims.

Many people find it difficult to raise a window sash from a closed position to a raised position in which it is partially or entirely opened, this being particularly true if it is a window which is of extra size and weight or in case a radiator, kitchen sink, or the like, is in front of the window or in case the sash has become stuck due to dampness or applied paint.

Therefore, it is one object of the invention to provide a lift or jack of such construction that it may be set at rest upon a window sill with a portion engaged in a finger-receiving socket of a sash and the jack then tilted in a direction to force the sash upwardly towards its opened position.

Another object of the invention is to provide a lifter or jack which is in the form of a lever having a claw at its front end for engaging in the finger-receiving socket of the sash and in addition having this front or lower end portion of the lever provided with a fulcrum member upon which it is rocked when in use.

Another object of the invention is to provide improved means for pivotally connecting the fulcrum member with the lever and in addition so form the fulcrum member that it may be selectively applied to the lever in such manner that the lifter may be accommodated to the distance at which the finger-receiving sockets of the sash are spaced upwardly from the window sill when the sash is in its lowered or closed position.

Another object .of the invention is to provide a lifting jack which may be used for raising window sashes, as a tack puller, and for other purposes.

A practical embodiment of the invention is illustrated in the accompanying drawing where- Figure l is a view showing the improved sash lifter in side elevation and applied in position for raising a window sash, shown in vertical section,

Figure 2 is a view similar to Figure 1, showing the fulcrum member disposed in position for imparting added height to the lifter,

Figure 3 is a view showing the lifter with its fulcrum member removed and the lifter applied for use outwardly of the window,

Figure 4 is a view looking at the upper or front face of the lifter,

Figure 5 is a sectional view taken longitudinally through the lifter along the line 5-5 of Figure 4, and

Figure 6 is a side elevation showing another manner in which the lifter may be used.

This improved lifter or jack is intended primarily as an implement for raising a window sash I which has become stuck in the window frame 2 2 r or is of such size and weight that it cannot be easily raised by merely thrusting the fingers of a persons hands in the finger-receiving sockets 3 of the sash, but it will be understood that it is not limited to this particular use. By referring'to Figure 3, it will be seen that the improved lifter may be used for raising a window sash equipped with finger-receiving sockets of the type which project from the sash as well as those which are countersunk in the sash. I a

The sash lifter consists of a lever 4, a claw 5, and a fulcrum member 6 which is pivotally attached to the lever in rearwardly spaced relation to the front end thereof. The lever may be formed of wood, or other suitable material, and is preferably rectangular in cross section in order to provide it with flat side faces and front and rear faces. The front end of the lever is cut diagonally to provide it-with a front end face 1 which extends at anupward incline from the rear face of the lever to the front face thereof and the forward end portion of the front face is formed with a recess 8 into which the rear portion of the claw 5 is fitted and firmly secured by rivets or pins 9 having heads at their front-and rear ends.-

The forward portion of the claw projects from the front end of the lever and formed with a notch or recess [0 which is V.-shaped, as shown in Figure 4, the fingers H of the claw having beveled surfaces I 2 along their inner sides which border opposite sides of the notch It! in order that if it is desired to use the device for pulling tacks or nails, a tack or nail may be readily engaged in the notch with its head overlapping the fingers I I. It should also be noted that the portion of the claw projecting forwardly from the lever is bent upwardly somewhat so that when the claw is engaged under the head of a tack or nail, the lever may be rocked across this bend and then upon the rear edge of the front end face 1 and the nail or tack easily pried out of wood into which it has been driven. This formation of the claw and its relation to the front end of the lever also allows the claw to be easily forced under the lower edge of a window sash from a position outside the window with the bill and the sloping front end of the lever resting upon the window sill l2, as shown in Figure 3, the lever being then rocked across its front end so that the bill is swung upwardly and the sash raised a sufficient distance for a person to slip his fingers under the sash and raise the sash. It will be observed that the fulcrum member is detached from the lever during such use of the lifter.

The fulcrum member 6 is formed from a strand of stiff metal which is bent midway its ends to form an end bar [3 and side bars l4 extending from opposite ends thereof, ends of the strand being bent inwardly towards each other to form an end bar [5 at the opposite end of the fulcrum member from the end bar I3. The incompleted rectangular fulcrum member then has its side bars l4 bent closer to the end bar i3 than the end, bar l5 to provide end portions l6 and ll, the end portion I! being of greater length than the end portion 16.

A clip I8 formed from a strip of resilient metal extends longitudinally of the front end portion of the lever against the rear or under face thereof and is secured at its front end by the rear one I of the rivets 9. The said under face of the lever is formed with a transversely extending groove l9 and opposite this groove, the resilient strip forming the clip is bent to form an arched portion 20 merging into a longitudinally curved tongue or lip 2! Resiliency of the clip urges its lip towards the lever but allows it to be sprung away from the lever. Therefore, the fulcrum member may have a selected end bar disposed against the under face of the lever and then shifted forwardly until the said end bar moves between the clip and the lever and into the groove or seat 19 where it will be held by the clip. The fulcrum member will thus be detachably and pivotally connected with the lever and serve to tiltably mount the lever during use of the lifter.

Since the fulcrum member is detachably connected with the lever, it may have either its long end portion or its short end portion pivoted to the lever and thus have a selected end portion serve to tiltably mount the lever and its other end portion serve as a foot for resting upon a window sill during use of the lifter. The lever may, therefore, be tiltably supported at such a height that its bill may be fitted into either a finger-receiving socket mounted adjacent the lower edge of the sash, as shown in Figure 1, or the bill of the lever fitted into a higher fingerreceiving socket, as shown in Figure 2. When the lifter is applied outwardly of the window, the

fulcrum member may be easily removed, or, if there is room upon the window sill, the fulcrum member may be swung to the position shown in Figure 6 and the lever and the fulcrum member rocked upon the bends of the side bars while ments best adapted to perform the functions set forth, it is apparent that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention.

It will be seen from the foregoing description that I have provided a comparatively simple, inexpensive and efficient means for carrying out the various objects of the invention.

Having thus described the invention, what is claimed is:

1. A window sash lifter comprising a lever, a claw extending forwardly at the front end of said lever, a fulcrum member formed of metal and having side bars and end bars and having its side bars bent intermediate the length of its side bars to form the fulcrum member with end portions extending at right angles to each other, one of said end portions being longer than the other, and a clip carried by the front end portion of the lever at the underside thereof and including a resilient bill extending longitudinally of the lever towards the rear end thereof and passing across and frictionally gripping a selected end bar of said fulcrum member and thereby pivotally mounting the fulcrum member with the free end portion of the fulcrum member constituting a foot for the said fulcrum member.

2. A window sash lifter comprising a lever, a claw extending forwardly from the front end of the lever, a fulcrum member formed of metal and having side bars and end bars and being bent intermediate the length of its side bars to form end portions extending at right angles to each other, one of said end portions being longer than the other, and a clip consisting of a strip of resilient metal extending longitudinally of the front end portion of said lever and secured at its front end to the lever, the rear portion of said resilient strip forming a bill for said clip, said clip having its bill engaged across a selected end bar of said fulcrum member and serving to detachably and pivotally connect the said fulcrum member with the lever, the attached end portion of said fulcrum member serving to tiltably mount the lever and its free end portion constituting a foot for the fulcrum member.

FRANK F. CHILES.

References Cited in. the file of this patent UNITED STATES PATENTS Number Name Date 119,770 Ives Oct. 10, 1871 193,931 Day Aug. 7, 1877 462,918 Zabel Nov. 10, 1891 758,773 Parker et al. May 3, 1904 920,933 Durning May 11, 1909 1,971,834 Tryoff Aug. 2?}, 1934 2,439,288 Evans Apr. ti, 1948

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