US561014A - Sash-balancing device - Google Patents

Description

(No Model.) 2 Sheets-*Sheet 1. P.. MARSHALL.

A sAsH BALANGING DEVICE.

No. 561,014. V172113911111211 May 26, 1896.

(No Modem 2 Sheets-Sheet 2.

P'. MARSHALL. SASH BALANING DEVICE.

No. 561,014. 5 y Patented May 26, 1896.

` [Vf/''. l

UNITED STATES PATENT OFFICE..

PORTER MARSHALL, OF FAIR PLAY, MISSOURI.

SASH-BALANCING DEVICE.

SPECIFICATION forming part Of Irl-Eiersv Patent N0. 561,014, dated May 2.6, 1896.

y l Application filed January 17, 1896. Serial No. 575,880. (No model.) l

To all whom it may con/cern.'

Be it known that I, PORTER MARSHALL, of Fair Play, in the county of Polk and State of Missouri, have invented a new and useful Improvement in Devices for Operating Vindow- Sashes, of which the following is a full, clear, and exact description.

My invention relates to devices for operating window-sashes, especially sashes of large size.

The object of the invention is to provide a means whereby the upper sash of awindowframe may be raised and 'lowered by correspondingly operating the lower sash, and whereby, also, when desirable, the lower sash may be operatedindependently of the upperl sash.

A further object of the inventionis to construct a device capable of the above-mentioned results, readily adaptable to any Window, and which will be durable, simple, and economic in its construction.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fullyset forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a front elevation of a windowframe and window-sashes contained therein, the latter having the improvement applied thereto. Fig. 2 is a vertical central section through the window-frame and windowsashes, the said section being taken substantially on the line 2 2 of Fig. l. Fig. 3 is a horizontal section taken through the frame and thro ugh the upper sash of the same. Fig. et is a vertical section through the lower sash and through the window-frame, the section being taken at right angles to that shown in Fig. 2; and Fig. 5 is a detail sectional view taken substantially on the line 5 5 of Fig. l.

ln carrying out the invention the Window- 'frame A may be of any desired shape or of any size, and is provided with the usual upper and lower sashes B and B', held to travel in the usual sash-grooves. The two sashes are separated by the ordinary parting-strip b, and an outer or back stop b is employed,

together with an inside or front stop b2, the latter having a vertical groove b3 in its inner face, asis best shown in Fig. 3. The two sashes B and B are made to balance one another, and the uppersash has attached thereto at each side one end of a tape 13. These tapes are carried upward over friction-rollers or pulleys 14, located at the upper portion of the window-frame upon its inner side faces, and the said tapes, after having been passed over the said pulleys, are each attached to a locking-strip C.

The locking-strips C are preferably made of metal, although any desired material may be used, and the said strips are angular in cross-section, comprising what may be termed a side member l0, adapted for loose engagement With the inner side face of the window-frame, and a` front member ll, adapted for loose engagement with the inside or front stop b2. Each of the locking-strips C is provided with openings l2 in the front member '11, as shown best in Fig. l, and these openings are at predetermined distances apart, while openings l2a are likewise made in the inner or side members l() of the aforesaid locking-strips. The openings in both me1nbers of the strips are preferably located substantially opposite each other. l

A casing D is countersunk in the inner face of each side of the WindoW-frameat about a point where the two sashes would meet when closed. A gravity-latch l5 is pivoted in each of the said casings D, and the heads of the said latches are adapted to extend outside through suitable openings in the front portion of the aforesaid casings, as shown in Fig. fl. The heads of the latches are provided with a beveled or decidedly-inclined upper surface d, and the lower edge CZ of the head of each latch is also decidedly inclined, as shown in Fig. Ll, the inclination of the bottom l portions of the heads being substantially at a right angle to the upper inclined surface d.

A casing E isintroduced into each side edge of the lower sash B, and in each of these casings E a gravity-latch 1G is located, and the heads of these latches, as illustrated in Fig. 5, are adapted to extend out through suitable openings in the casing, the said openings being inade in the front faces of the cas- IOO ings, and these faces are substantially flush with the front or inner faces of the lower sash, as shown in Fig. l.

A slot or a groove 17 is made in each side edge of the lower sash B', extending from the top of the casings E to the uppei` edge of the sash, as shown in Figs. 3 and Ll. The latches l5, located in the frame-casing D, are adapted to enter the openings l2 in the side members l() of the locking-strips, while the latches that are carried by the lower sash are adapted to enter the openings l2 in the front members ll of the aforesaid locking-strips, as shown in Figs. l, 4, and 5.

In the operation of the device, both of the window-sashes being closed and it being desired to lower the upper sash, the lower sash is raised, whereupon the upper sash will drop a corresponding distance, and when the upper sash has been dropped a sufficient distance to enable the upper latches l5 in the window-frame to enter one of the openings l2CL in the locking-strips, as shown in Fig. 4, the latches will hold the locking-strips in their upper position, the said strips having been carried upward with the lower sash by reason of the heads of the latches of said sash extending through the lower openings l2 in the front members of the said locking -strips Aft-er the locking engagement between the frame-latches and the locking-strips has been accomplished the lower sash is carried upward until the heads of the latches carried by the said lower sash will engage with the surfaces of the locking-strips between a lower opening l2 and the next openin g above. This contact between the latches of the lower sash and the locking-strips will carry the said latches within their casings, so that by a quick downward movement the latches of the lower sash maybe jumped over the lower openings in the locking-strips and the sash may then be lowered to an engagement with the sill of the window-frame, if desired, leaving the upper sash in its open position. \Vhen it is desired to close the upper sash, the lower sash is raised until its latches are again in engagement with the locking or governing strips C, whereupon the lower sash is closed, carrying the upper sash at the same time to its upper closed position, as shown in Fig. l.

By reason of the decidedly-inclined upper surfaces d of the frame-latches and the lower inclined surfaces d' and also by reason of the corresponding surfaces e and e', formed on the heads of the sash-latches, the latches will readily pass the governing or locking strips when the said strips are qnicklymanipulatcd g but when the strips are slowly manipulated the heads of the latches will naturally gravitate into the openings of the locking or governing strips that may be presented to them. I desire it to be understood that if the two sashes are not to operate in unison an apertured strip may be provided for either the upper or the lower sash, or for both, the said strip or strips being secured to the inner face of the window-frame to receive the latches carried by the sashes.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with the upper and lower sashes of a window-frame, and strips angular in cross-section and having sliding movement in the frame, of a connection between the said strips and the upper sash, and gravi ty-latehes carried by the lower sash, an d adapted for locking engagement with the aforesaid apertured strips, as and for the purpose speeiied.

2. The combination, with the upper and lower sashes of a window-frame, and slides, angular in cross-section, having free movement in the said frame and connected with the upper sash, of gravity locking devices lo cated in the frame, adapted for locking engagement with one member of each of the said strips, and similar locking devices carried by the lower sash and adapted for engagement with the second members of the aforesaid strips, as and for the purpose speeliied.

rlhe combination of a window-frame, sashes arranged to move therein, a lockingstrip connected to and arranged to move with one sash and having means to detachably connect it to the other sash, and a gravitylatch mounted on the frame in position to engage and hold said locking-strip against movement, substantially as set forth.

4. The combination of a window-frame, sashes arranged to move therein, a lockingstrip, a flexible connection between the locking-strip and one sash, a gravity-latch mounted in the frame and arranged to engage said strip and hold the same against movement, and a gravity-latch carried by the other sash and detaehably connected with the lockingstrip, substantially as set forth.

PORTER MARSHALL.

Witnesses:

JAMEs CUNNINGHAM, JACOB E. RICHARDS.

ICO

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