US1211012A - Window-closing device. - Google Patents

Description

W. B. UFFERT.

WINDOW CLOSING DEVICE. APPLICAT| 0N r1110 MAR. 21. I916.

Patented Jan. 2, 1917.

WALTER B. UFFERT, 0F HEMPSTEAD, NEW YORK.

WINDOW-CLOSING DEVICE.

Specification of Letters Patent.

Patented Jame, 1917.

Application filed March 21, 1916. Serial No. 85,674.

To all whom it may concern:

Be it known that I, WALTER B. UFFERT, a citizen of the United States, residing at Hempstead, in the county of Nassau, Long Island, and State of New York, have invented certain new and useful Improvements in Window-Closing Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and. use the same. I

The invention relates to improvements in window closing devices.

The object of the present invention is to improve the construction of window closing devices and to provide a simple practical and efficient window closingdevice of inexpensive construction adapted to maintain the upper and lower sashes of a window in an open position at any adjustment and capable of manual operation to cause the sashes to close automatically thereby obviating the necessity of hurriedly closing the sashes by hand in event of a storm or the like.

With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being under stood that various changes in the form, proportion and minor "details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing Figure 1 is a side elevation of a portion of a window provided with a window closing device constructed in accord? ance with this invention. Fig. 2 is a vertical sectional View of the same partly in elevation. Fig. 3 is a detail sectional view on the line 33 of Fig. 1.

Like numerals of reference designate corresponding parts in the several figures of the drawing.

In the accompanying drawing in which is illustrated the preferred embodiment of the invention 1 and 2 designate upper and lower sashes slidably'mounted in a window frame or casing 3 and connected by sprocket chains 4 and5 with counterbalancing weights 6 and 7. The sprocket chains 4 and 5 pass over upper pulleys' 8 and 9 having sprocket teeth 10 and 11 and also provided with reversely arranged ratchets 12 and 13. The

weight 6 of the upper sash is sufficiently heavy to raise the same and move the said upper sash to its closed position when the said sash is free to move under the influence of the weight 7 which isconnected with the lower sash and of slightly less weight than the latter and will permit the lower sash to close automatically when the said lower sash is free to move downward. The pulleys or rotary elements 8 and 9 are mounted in suitable casings 14 and the window sashes are held at any desired adjustment by means of a double pawl comprising an approximately Y-shaped lever 15 and 'a pair of pawls or dogs 16 and 17. The Y-shaped lever 15 is composed of spaced sides 18 and. 19, a transverse connecting portion 20 and a stem 21. The sides are pivoted by rivets 22 or other suitable fastening devices to projecting ears 23 that are mounted on the window frame or casing. The pivots are located near the upper ends of the sides 18 and 19'and the stem.-

21 extends upwardly from the central portion of the transverse connecting portion 20 of the lever. The pawls or dogs 16 and 17 are pivoted intermediate of their ends between spaced ears 2 1 and 25 of the sides 18 and 19 by rivets 26 and 27 or other suitable pivots and the said pawls or dogs consist of straight levers projecting downwardly be yond the sides of the approximately Y- shaped lever 15 and provided at their lower ends with reversely arranged teeth 28 and 29, for engaging the ratchet teeth 12 and 13' of the sprocket wheels or pulleys 8 and 9. The lower ends of the sides of theY-shaped lever are sufficiently close to the pivoted pawls to engage the same and move the pawls out of engagement with the ratchet teeth when the lever is operated. The pivoting of the pawls permits indepenc ent movement of the same to allow themto ratchet over the ratchet teeth in'the opening movement of the sashes. The tooth 28 eX- tends upwardly and inwardly and engages the ratchet teeth 12 of the pulley or wheel vof the upper sash. This will prevent the wheel from rotating under the influence of the weight 6 when the tooth 28 is in engagement with the said wheel. The other tooth 29 engages the ratchet teeth 13 of the pulley or wheel 9 of the lower sash and holds the pulley or wheel 9 against rotary movement under the influence of the lower sash, the weight 7 serving merely to partially counterbalance the lower sash and prevent a too mit a limited pivotal movement of the said; pawls or dogs. The lower ends of the sides of the approximately U-shaped lever extend below the ears and form arms 32 for engaging the pawls or dogs to move the same out of engagement with the ratchet teeth of the pulleys or wheels when the lever 15 is operated by the means hereinafter described' to releasethe sashes and permit the same to close automatically.

The lever 15 of the double pawl is manually operated by a rock shaft 33 j ournaled. in suitable bearin s34 and provided intermediate of itsen s with an approximately U- shaped crank bend 35 forming an arm for engaging the upwardly extending stem or arm of the lever 15.- The arm or stem 21 extends through the loop or bend 35 which projects upwardly from the shaft 33 and the latter is provided at its outer end with an operating arm 36'to which an operating cord 37 or other suitable operatingdevice is connected. The operating cord is adapted to be pulled downwardly to partly rotate the rock shaft and swing the crank bend and' the stem ofthe lever 15 inwardly with the frame thereby moving. the pawls or dogs outwardly out of engagement with the arm but any other suitable means may of ratchet teeth of the pulleys or wheels. As soon as the operating cord is released the coiled. spring will return the pawls or dogs 16 ahd 17 to their engaging position. The upper end of the arm orstem is provided with a perforation 38 for the attachment of any suitable operating means for enabling a plurality of windows to be simultaneously operated from a single point. Any suitable means may be employed for this purpose, illustration thereof is deemed unnecessary. The crank bend is normally maintained out of engagement with the stem or arm of the lever by a weight 38' secured to the lever and extending downwardly and outwardly in the opposite direction from the operating course be employed for this purpose.

What is claimed is 1. In a window closing device of the class described, the combination with upper and lower sliding sashes, rotary elements provided with ratchet teeth, separate flexible connection arrangedon the rotary elements and connected withthe said sashes and provided with independent weights, the weight for the upper sash being heavier than said sash and the lower sash being heavier than its weight, a lever fulcrumed at an interme diate point and provided with an upwardly extending arm, said lever being also provided with spaced ratchet lockingsides hav-- ing means for engaging the ratchet teeth of the said rotary elements againstrotary movement, and a releasing rock shaft having operating means and provided with, an arm arranged to engage .the stem or arm of the said lever. I

4 2. In a window closing device of the class described, the combination with upper and lower sliding sashes, rotary elements provided with ratchet teeth, separate flexible connections arranged on the rotary elements andconnected with the said sashes and provided with independent weights, the weight for the upper sash'being heavier than said sash, a lever fulcrumed at an intermediate point and provided with an upwardly extending arm, said lever being also provided with spaced ratchet locking sides having means for engaging the ratchet teethlof the said rotary elements to hold. theflatter against rotary moveinentand a rock shaft provided with a crank loop or bend receiving the releasing -arm orstem ofthe said lever, operating means connected with the rock shaft for swinging the crank shaft to actuate the same lever and means connected with the rock shaft for holding the, crank bend normally out of engagement with the said lever.

' 3. In awindowclosing device of the class described, the combination with upper and lower sliding sashes, rotary elements provided with ratchet teeth, separate flexible connections arranged on the rotary elements and connected with the said sashes and provided with independent weights, the weight for the upper sash being heavier than said sash, a lever fulcrumed intermediate of its ends and having spaced; ratchet locking side's, pawls or dogs pivoted to .the spaced sides adjacent to the lower ends thereof and projecting beyond the said endsand havmg reversely arranged teeth or en-ga ing portions to engage with the said ratc et teeth,

springs connected with the pawls or dogs for urging the same toward the ratchet teeth and means for operating the lever.

In testimony whereof I affix my signature' in presence of two witnesses.

WALTER B. UFFERT Witnesses: v PHILIP PHILLIPS,

DANIEL HARRINGTON.

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