US1077605A - Window-lock. - Google Patents

Description

G. F. HANINGTON.

WINDOW LOOK.

APPLICATION FILED 11113.22, 1911.

Patented Nov. 4, 1913.

. 1 1 I 1 I I I I I I.

lriver ztor ZZ 4 Attorneys.

W'nese COLUMBIA PLANOURAPH COUWASHINGTON, D. c.

CHARLES F. HANINGTON, 0F BOSELLE PARK, NEW JERSEY.

WINDOWLOCK.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed March 22, 1911. Serial No. 615,056.

To all whom it may concern:

TON, a citizen of the United States, and a resident of Roselle Park, in the county of Union and State of New Jersey, have invented a certain new and useful Window- Look, of which the following is a specifica tion.

The object I have in view is the production of a window lock adapted to be used with windows having two sashes, which will effectively lock the windows in closed or open position.

Further objects are to produce a device which will be cheap and highly effective in use, and which cannot be operated except by a person within the room.

These and further objects will appear from the following specification and ac companying drawings, considered together or separately.

In the drawings: Figure 1 is an elevation of a portion of a window frame looking toward the side, with the sashes removed. Fig. 2 is a section on the line 22 of Fig. 1, looking in the direction of the arrow. Fig. 3 is a section on line 33, of Fig. 1, looking in the direction of the arrow. Fig. 4: is a section on the line 4-4: of Fig. 1, looking in the direction of the arrow. Fig. 5 is a detail view of the operating shaft. Fig. 6 is a detail view of a modification.

In all of the views, like parts are designated by the samereference characters.

In carrying out my invention I provide racks which are carried by the window sashes in a position to one side, out of the way of the counterbalance cords. These racks engage pinions which are carried upon shafts within a box which is mounted within the frame, and behind the parting strip. These pinions have rigidly secured to them ratchets which are engaged by dogs,

and the dogs are adapted to be disengaged, when it is desired to open one or both sashes, by cams operated by a handle within the room.

In the drawings, 1 represents the frame, 2 the upper sash, and 3 the lower sash.

4 is the parting strip. Within the frame is located a box, or casing 5. This casing lies behind the parting strip, but is provided with a groove 6, within which the parting strip will lie after having been reduced in width at that point, as shown in Fig. .3. The casing has a cross member 7 Be it known that I, CHARLES F. HANING- z in which the groove 6 is made, and this cross member divides the casing in two parts, producing small chambers 8, 8, one on each side of the parting strip. The sashes are each provided with a rack 9, said racks being located adjacent to the parting strip so that they will not interfere with the sash cord. The racks are provided with teeth, as shown. These teeth are adapted to engage with pinions, 1,0, 10, each lying within a chamber .8. The pinions are mounted upon a shaft 11, which shaft passes through openings in the walls of the casing, and also in the cross member 7. The pinions are free to turn independently of each other. The pinions engage with .the racks, and are rotated as the sashes are raised or lowered. For the purpose of preventing rotation of the pinions and thereby locking both of the windows, each is provided with a ratchet 12, which turns with the pinion. One of these ratchets is a right-handed ratchet, and the other is a left-handed ratchet. In other words,-the teeth on the two ratchets incline in opposite directions. These ratchets are prevented from turning and the windows locked by pawls 13 and 14, one lying in each of the chambers 8. These pawls are supported upon a shaft 15. Iprefer to make the shaft 15 so that it will not turn within its bearings, and use it as a support or anchor for spiral springs 16, 16, which surround the said shaft and serve to engage the pawls 13 and ll with their ratchets. These springs are so arranged that they tend to force the ratchets into engagement with the pawls. For the purpose of moving the ratchets away from the pawls, and thereby unlock the windows, I provide a shaft 17, mounted in hearings in the casing 5, and carrying cams. These cams are in the form of lugs 18 and 19. I prefer to make both lugs upon the same side of the shaft 17, and arrange the lugs so that, by rotating the shaft in one direction, the lug 18 will come in contact with the pawl 13 and disengage it from its accompanying ratchet, and when turned in the other direction, the lug 19 will come in contact with the pawl 13 and disengage it from its ratchet. This shaft I make short and not extending beyond the outer walls of the casing 5, for the purpose of permitting the casing to be easily inserted by a carpenter, into the frame 1. For the purpose of turning the shaft 17, I provide an extension shaft 20, which is mounted within an opening in the frame, and engages with the end of the shaft 17 For the purpose of making a turning connection between the shafts, I provide the end of the shaft 17 with a notch 21, and the end of the extension shaft 20 with a tongue 22, said tongue lying within the notch and serving as a clutch connection between the extension shaft and the shaft 17. The outer end of the shaft 20 is provided with a handle or button 23. I prefer to make this button oval, as shown, so as to indicatethe position of the lugs 18 and 19.

It will be seen that when the shaft 17 is so turned that the two lugs 18 and 19 are not in contact with the two pawls, 13 and 14, that the spiral springs 16 will keep the latter in engagement with the ratchets. The lower sash may thereby be lowered, and the upper sash raised, the pawls idly slipping over the teeth of the ratchets. If, however, the sashes be moved in the opposite direction, these pawls will engage with the teeth of the ratchets and prevent rotation of them in that direction. It is apparent that if the shaft 17 be rotated in one direction and engages the lug 18 with the pawl 13, the latter will be disengaged from contact with its ratchet and, consequently, the lower sash may be raised. When it is raised to the desired extent, the shaft 17 may then be rotated so that the lugs 18 and 19 are in the vertical position out of engagement with the pawls, thus locking the sash in that position. The same action will result if the shaft be turned in the other direction, except the upper sash will be unlocked. The casing 5 is located at the position occupied by the overlap of the two'window sashes. Therefore, it is possible to utilize a single horizontal shaft 11, with pinions which will engage upon the racks carried by the two sashes. These racks extend upward and downward so that they pass beyond the point of engagement with the twopinions. I thereby produce a very compact device which will engage with both window sashes and lock the same in position.

In Fig. 6, I show an arrangement in which the two cams or lugs 18 and 19 are on opposite sides of the shaft 17. It is apparent, therefore, that if the shaft be rotated in one direction or the other to about 90 degrees, both pawls will be disengaged from the ratchets, and, therefore, both window sashes can be moved.

I prefer to make the lugs 18 and 19 so that they will not come in contact with the gaged from the ratchets until the shafts are turned to a considerable angle. insure the sash being locked, even if a person carelessly fails to turn the shaft 20 so that the button 23 is in an exact upright or horizontal position, which, of course, depends upon the position of the button on the shaft.

In accordance with the provisions of the patent statutes I have described the principle of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative and that the invention can be carried out in other ways.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination with two sashes and a rack upon each sash, of a shaft, two independ ently rotatable pinions on the shaft, said. pinions each engaging a rack, two oppositely faced ratchets on the shaft, each ratchet turning with a pinion, a pawl engaging each ratchet in such a manner as to allow movement of a sash in one direction only, a sec ond shaft having lugs thereon, said lugs being engageable with the pawls to disengage the latter from the ratchets and allow movement of the sash in the other direction, a separable key cooperating with the second shaft for rotating said shaft and means carried by the key for indicating the position of the lugs on the shaft with reference to the pawls.

This will,

2. A window lock having in combination flopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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