US1858319A - Device for controlling windows of the vertically sliding type - Google Patents

Description

May 17, 1932. O w, YOUNG 1,858,319

DEVICE FOR CONTROLLING WINDOWS OF THE VERTICALILY SLIDING TYPE Filed Sept. 15, 1931 2 Sheets-Sheet 1- Erma [tor L 4 Cttt ornem W. YOUNG May 17, 1932.

DEVICE FOR CONTROLLING WINDOWS OF THE VERTICALLLY SLIDING TYPE FiIed Sept. 15, 1931 2 Sheets-Sheet 2 Patented May 17, 1932 UNITED SATES PANT FEGE WILLIAM YOUNG, OF CARLUKR'SCOTLAND Application filed September 15, 1931, Serial No. 562,963, and in Great Britain September 3, 1930.

My present invention relates to improvements in devices for controlling windows of the slidabl-e type used in passenger vehicles, ships and in other well known devices, and

has for an object to provide a simple and eflicient spring balance that can be used with varying weights of windows, and where the spring pressure is readily controlled so that the reaction of the balancing effect is practically constant throughout the travel of the window.

Another feature of the present invention is to provide a means for automatically checking or braking the movement of the window at any desired position, and holding the same firmly whereby the possibility of the window rattling is eliminated.

With the foregoing and other objects in View, my invention will be more fully described hereinafter, and will be more particularly pointed out in the claims.

In the drawings, wherein like symbols refer to like or corresponding parts throughoutthe several views,

Figure 1 is a front elevation of the improved window controlling device wherein a pair of levers are used,

Figure 2 is a horizontal section alongthe line 2-2 of Figure 1 showing the device in plan on'an enlarged scale.

Figure 3 is a vertical section along the line 33 in Figure l,

Figure 4; is a vertical section along the line H in Figure 1,

Figure 5 is a front elevation with parts broken away and parts shown in section of a modified form of the device wherein two pairs of levers are used,

Figure 6 is a horizontal section along the line 66 of Figure 5 showing the modified form in plan, I

Figure 7 is a front elevation of the device as shown in Figure 5 with the window in a lowered position,

Figure 8 is a fragmentary detail View showing a modified form of window brake, and

Figure 9 is a vertical section along the line 9-9 in Figure 8. 7

Referring more particularly to Figs. 1 to 4 of the drawings, A and B show a pair of levers, which are pivotally connected together at one end by the pin 0. The other end of the lever A is enlarged in the form of a disc A, and is pivotally mounted upon the stud or collar cl, which is attached to the plate D or made integral therewith. The plate D is connected, to the garnish rail E of the motor body or other suitable part of the window frame.

The other end of the lever B has fastened thereto by riveting or otherwise a plate B whereby to pivotally'mount the same upon the pin B to the bracket F, which has its upper and front edges preferably flanged. This upper flange affords a means of attaching the bracket F to the channel or frame G, which is secured to the pane of glass along the lower edge of the window sash H. The plate B carries the pin' or stud B for pivotally mounting the rod I, which projects through a slot J formed in the flange along the front edge of the bracket F. A compression spring K is mounted upon the rod I and confined between the front flange of the bracket F, and the adjusting nuts L on the outer screw threaded end of the rod 1. With the spring K as shown the force exerted by the spring K will swing the lever B in a downward direction.

The automatic check or brake (see Fig. 3) comprises the friction disc M of fibre or other suitablematerial, and is pivotally mounted upon the fixed stud d carried by the plate D to abut and to register with the disc-shaped end A of the lever A. Adjacent the friction discM and also pivotally mounted upon the I fixed stud (Z is another disc N having an upwardly projecting arm which is shaped to form an arcuate cam N. A pin A is secured to the interior of the stud d, and projects outwardly to pivotally mount the spring disc P, which presses against the outer disc N. The nut O on the outer end of the pin A engages the spring disc P to press the same forwardly, and cause the discs N and M along with the disc-shaped end A of the lever A i to be held tightly together. The arcuate cam N forming'part of the discN engages the end of the pin T, and is adjustably held in the off-set portion R forming the central portion of the bar R. The outer ends R of the bar R are reduced and shaped to carry the friction rollers or pads Q, of rubber or other suitable material. Adjacent the outer ends R are attached the upper ends of the flexible spring strips S, which extend downwardly and have their lower ends secured to the plate D. These spring strips S support the bar R, and urge the rollers Q, in a direction to bind against the window.

In the operation of the device with the parts as shown in Figure 1, if it is desirous to lower the window H, the force exerted to move the window downwardly will also carry-the lever B, pivotally attached to the window channel, in a likewise direction. The lever A, pivoted at C to one end of the lever B, and having its other end suitably mounted to rotate about the plate D, which is fixed to the garnish rail E, or other suitable part of the window frame, will allow the levers to swing about the pivot C and spread them apart in scissor fashion.

Since the spring K tends to rock the outer end of the lever B downwardly, the other end, which is mounted to pivot about the pin B, will exert an upward pressure on the window. Thus it is seen I provide a simple spring counterbalance which gives a constant action during the travel of the window, and can readily be applied to varying weights of windows.

The movement of the lever A will cause its disc-shaped end A along with the friction disc M, and the outer disc N, which are tightly pressed together by the spring P, to rotate in unison. The rotary movement given to the disc N will likewise move the cam N, and force the pin T forwardly along with the bar R to overcome the pressure exerted in the opposite direction by the spring strips S. This action will immediately release the friction rollers Q, from engaging the window H and allow the sash to travel downward-1y. After the cam N has been moved a slight distance whereby to force the pin T forwardly, the spring strips S resist further movement, and only the disc-shaped end A of the lever A rotates. When it is desired to stop the window in the downward travel, a slight upward force given to the window will reverse the rotation of the disc-shaped end A of the lever A, and cause the friction disc M, along with the outer disc N, to all rotate in unison. The cam N will move and release the pressure against the spring strips S and thus the friction rollers Q, will automatically be pressed against the glass, and hold the window sash H firmly in position.

The travel of the window sash H in the upward direction is accomplished by the reverse movement as above described.

Referring to Figures 5, 6 and 7, I have shown a slightly modified construction in which I have used two pairs of levers with separate springs for counter-balancing each pair of levers, and an automatic brake in connection therewith to check or hold the windows in the desired position. This form shows duplicate pairs of levers A and B Since the construction and operation of each pair of levers is the same, only a single pair will be described. Levers A and B are pivotally connected together at one end by the pin C. The other end of the lever B is pivotally mounted to the bracket F, which is fixed to the lower edge of the window sash H.

The other end of the lever A supports a disc A and carries the rectangular block Z2, which is to secured to the pin (5 and rotates with it. A bearing is supported by the plate D which is riveted to the garnish rail. The pin (Z is supported by hearing 0 and projects outwardly therefrom at each end. On the projecting end of the pin cl which supports the block I) and the disc A carried by the lever A are mounted the fibre disc M, the disc N with its cam N the disc spring P and the adjusting nut O. The disc spring P operates as in the other construction to tightly press these parts together and yet allow these parts to rotate. The cam N engages, as in the former construction, the pin 1 T which is adjustably held to the spring strip S. This spring strip S is secured at its lower end to the plate D and has fastened at its upper end the yoke S which carries the friction roller Q, to engage the window H.

The other projecting end of the pin d has fixed thereto a rectangular block I) which supports the cam block a whereby these parts can all rotate in unison. The cam block a coacts witha similarly mounted cam block to operate springs NV, whereby the pairs of levers A and B are given a constant counterbalance pressure. Each of the springs W is housed in a tube U, which is held in alinement at its inner end by the adjusting ring U with a duplicate tube U, and its associated parts. Suitable bearings V are fixed to the plate D and the tubes U whereby these parts are held in the desired position. The right and left hand screw threaded studs Z and Z are made integral with the ring U, which may be rotated by inserting a tool into the sockets u. These screw threaded studs Z and Z support the travelling nuts or collars Y and Y, which are prevented from rotation by the pins or screws y mounted in the collars Y and Y to engage the elongated slots in the tubes U.

One of the springs W has one end engaging the travelling collar Y and the opposite end bearing against the inner face of the cap X, which is mounted to slide on the outer end of the tube U. The cam block a is placed to operate as shown adjacent the outer face of the cap X.

It is obvious in operating this form of the device that the operation is practically the same as the one previously described. The movement of the window sash H will cause the pairs of levers A and B to spread in scissor-fashion, and force the discs A carried on the ends of the levers A to rotate along with the cam blocks a.

Since the springs \V are mounted to exert an outwardly pressure on the cam blocks a, this force will give the levers A an upward pressure and thus act to provide a constant counterbalance during the travel of the window H. The rotation of the discs A fixed to the levers A will also rotate the cam N as previously described to automatically operate the friction rollers Q,

In Figures 8 and 9 I have shown a slightly modified form of window brake in which the pin cl is rotated as formerly with the cam block a and the disc N The disc N carries the projecting arm N and is mounted to contact with the spring strip S and upon being rotated will force the strip outward along with the friction roller Q to release the window sash. A pin (Z is fixed to the garnish rail E, and enters the slot or opening n in the arm N whereby to limit the movement of the arm N It will be obvious that various changes may be made in the construction, combination and arrangement of parts, which could be used without departing from the spirit of my invention, and I do not mean to limit the invention to such details, except as particularly pointed out in the claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

1. The combination with a window frame and a sash slidable therein, levers having pivotal connections with said window frame and sash, a stop for the sash mounted on the window frame, a cam for releasing the stop, cam actuating means supported by the window frame and adapted to engage said levers whereby to permit holding the sash in fixed position, and also to permit releasing the sash to slide, and spring tensioned means associated with the levers adapted to hold said levers in balanced position during the sliding of the sash.

2. A sash stop and automatic operating means therefor, comprising a bar, yieldable means attached to the bar and adapted for holding the same to the window frame, friction rollers carried by the bar to engage the sash, levers adapted to be pivotally connected with the sash and window frame, a cam connected between the bar and the levers, said levers being operative by movement of the sash to release the friction rollers from the sash upon the initial movement of the latter, cam actuating means controlled by said levers for retaining the friction rollers released during further movement of the sash, and spring tensioned means associated with the levers adapted to hold said levers in balanced position during the sliding of the sash.

3. A sash stop and automatic operating means therefor, comprising stops for said sash, a plurality of pivoted levers alined in oppositely disposed pairs and adapted to be pivotally connected with the window frame and sash, cams connected between the stops and the levers, said levers operative by movement of the sash to release the stops upon the initial movement of the sash, a tube adapted to be mounted on the window frame,

spring tensioned caps carried by said tube,

and cam blocks carried by said levers to engage the spring tensioned caps whereby to hold the levers in balanced position during the sliding of the sash.

WILLIAM YOUNG.

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