US595922A - Automatic locking and releasing mechanism for transoms or windows - Google Patents

Description

(No Model.)

W. s. ROBINSON & 0. A. 'HAESELEY. AUTOMATIC LOOKING AND RELEASING MECHANISM FOR TRANSOMS 0R H! v l f hm, H H/ a UNITED STATES PATENT EErcE.

WILLIAM S. ROBINSON AND CHARLES A. HAESELEY, OF FANCY FARM, KENTUCKY.

AUTOMATIC LOCKING AND RELEASING MECHANISM FOR TRANSOMS OR WINDOWS.

SPECIFICATION forming part of Letters Patent No. 595,922, dated December 21, 1897.

Application filed August 31, 1897. Serial No- 650,l85. (No model.)

To all whom it may concern:

Be it known that we, WILLIAM S. ROBINSON and CHARLES A. HAESELEY, citizens of the United States, residing at Fancy Farm, in the county of Graves and State of Kentucky, have invented new and useful Improvements in Automatic Locking and Releasing Mechanism for Transoms or Pivotally Supported WVindow-Sashes, of which the following is a specification.

This invention relates to an automatic looking and releasing mechanism for transoms and pivotally-supported window-sashes that are arranged to swing in a frame.

It is the object of our invention to provide a ratchet journal mechanism through which a transom or pivotally-supported sash can be held at any adjusted position and to provide for operating, locking, and releasing the sash in a simple manner.

The invention consists in features of construction and novel combination of parts in a locking and releasing mechanism for transoms or window-sashes, as hereinafter described and claimed. i

In the annexed drawings, illustrating the invention, Figure 1 is a front elevation of a window or transom partly lowered or opened and broken away to show the location of the locking journal mechanism. Fig. 2 is an elevation of the journal locking and releasing mechanism from the rear or inner side. 3 is a sectional view taken on the line 2 2 of Fig. 2 and viewed in the direction of the arrows, showing the parts in a horizontal position or in the position they would occupy when the window or transom is adapted to swing laterally. Fig. 4 is a perspective view of the ratchet-gear. Fig. 5 is a like view of the pawl; and Fig. 6 is a sectional view through this sash and its fram e, showing the shiftable pivot.

Reference being had to the drawings, the numeral 1 designates the frame of a window or transom, and 2 the sash. In an inner face of the frame, at one side, is a mortise to receive a metal plate 3 and a recessed portion to accommodatethe working mechanisms of our device, which are confined between the plate 3 and a face-plate 4. The plate 3 may be secured in place by screws or otherwise Fig.

and has a circular opening 5, which, with a similar opening 6 in the face-plate 4, affords Between the plates 3 and 4 there is arrangedv a pawl 9 to engage and interlock with the teeth of the ratchet-gear. This pawl 9 is loosely mounted on a pivot-pin 10, which is secured and supported in suitable openings provided in the plates 3 and 4:. It will be observed that the pawl is so arranged as to drop automatically into engagement with a tooth of the ratchet-gear 8 at one point or another, according to the degree to which the sash 2 is opened, thus securely holding the sash in its adjusted position. The journal 7 has at its outer portion a squared end 11, which fits into a correspondingly-squared opening 11 of a socket-plate 12, that is countersunk in and secured to one edge of the sash, and thus as the sash is swung toward an opened or closed position the journal 7 and attached ratchetgear 8 will receive a corresponding movement, and the degree at which the sash is opened or left open will be regulated by the engagement between the ratchet-gear and pawl 9, which will hold the'sash in any required position.

For the purpose of releasing the pawl 9 from the ratchet-gear 8, so that the'sash will be allowed to assume a closed position, we provide the following construction: The ratchetgear 8 has a flanged portion 12", which is provided with a recessed portion 13. Below this recess the rim of the flange is cut away slightly to leave a projecting portion 14, and below this part the flange is removed for a considerable space, affording the opening 15. On its periphery the ratchet-gear is provided with a guide-groove 16, which is curved slightly outward at 17, above the recess 13, as shown, and extends downward to a point below the recess 13, or it may be continued to the opening 15. The outer edge of the groove 16 is beveled or slanting, as shown at 18, for a purpose to be presently explained. The pawl 9 has a depending tapering tongue 19, which has at its lower end an outwardly and downwardly extending guide-finger 20, which is adapted to work in the guide-groove 16. The

distance between the projecting portion 14: and the inner side of the plate 3 is sufficient to allow a space for the tongue 19 to pass through as the gear is revolved. The upper edge 'of the recess 13 forms a shoulder 21, which in operation is adapted to trip the tongue 19 to raise the pawl 9.

The opposite side or edge of the window or transom is supported or journaled in the manner described and illustrated in our application, Serial No. 64:3,999, filed July 9, 1897. This is accomplished by means of a longitudinally-shiftable pivot-pin 26 in a plate 27, that is countersunk in the edge of the sash, which is also mortised to receive the said pivot-pin when pushed inward. The inner end of the pivot-pin 26 is provided with a head 28, that limits its outward movement. A suitable recess intersects the pin-receiving mortise, and when the pivot-pin 26 is pushed outward, as by a suitable tool or instrument inserted through said recess or opening in the side of the sash, a plug 29 may then be pressed into said recess, at the rear of the pivot-pin 26, to hold it in its projected position. The projecting end of the pivot-pin 26 is received in a socket-plate 80, that is mortised or countersunk into an inner face of the frame 1, and thus by means of the journal 7 and pivot-pin 26 the sash 2 is supported or journaled in its frame.

The operation of the device is as follows: The transom or window is turned by pullinga suitable cord or otherwise to open it, thereby through the engagement of the squared end 11 with the squared opening 11 of the socketplate 12, secured in the sash of such transom or window, turning the journal 7, and with it the ratchet-gear 8, the pawl 9 sliding overthe teeth of the ratchet in the well-known manner until the transom or window has been opened to the desired extent, when the pawl 9 engages with one of the teeth on the ratchetgear 8 and locks the sash in that position. Should it be now desired to close the transom, it is further turned in the opening direction, when the shoulder or stop 21 will engage the tongue 19 and operate to raise it through the recessed portion 13 until the guide-finger 20 passes over the stop 21 and slides down the slanting side 18 and drops into the groove 16. At this point a stop 22, which may be one of the teeth of the ratchet-gear, engages with a brace-piece 23, which is secured between the plates 3 and 4 and prevents the further turning of the gear, which might disarrange the working connection of the parts. The transom is now permitted to close, when the ratchet-gear is turned in the reverse direction, and the guide-finger 20 slides in the guidegroove 16, thereby maintaining the pawl in an elevated position to prevent it coming in contact with the teeth of the ratchet-gear. The arrangement of the parts is such that as the transom or window reaches the closed position the finger 2O arrives at the opening 15, and the tongue 19, falling therein, permits the pawl to resume its operative relation with the ratchet-gear.

A spring-latch 24: may be secured to the sash and provided with a depending cord 25, which serves at the same time as a means for withdrawing the said latch and to shift the sash to any required position, whether wholly or partly open.

It has been assumed that the locking journal mechanism at one side of the sash and the longitudin ally-shift able pivot-pin at the other side will be each arranged at such an elevation that the weight of the sash will be ordinarily suflicient to move it toward or to a closing position, when the engagement of the ratchet-gear and pawl is released by a suitable pull on the cord. Should the weight of the sash not be sufficient, a spring may be provided for the purpose of closing it.

In Fig. 3 we have shown the device turned to the position it would occupy when applied to a transom or window adapted to swing latera lly. In this construction we would use a spring 31, suitably located in the device for returning the window to a closed position, and a spring 32, hearing on the pawl 9, to insure positive contact between it and the ratchet-gear 8. Either orboth of these springs might be used with advantage in the construction of window first described.

By means of the longitudinally-shiftable pivot-pin 26 the sash is very readily engaged in or disengaged from its frame without disturbing the ratchet journal locking mechanratchet-gear having a guide-groove of a pawl coacting with said ratchet-gear having a tongue adapted to engage with the guidegroove, and means operating by the forward turning of the ratchet-gear to raise said tongue, and with it the pawl, to bring the tongue into engagement with the guidegroove, whereby, in the reverse movement of the ratchet-gear, the pawl is maintained in an elevated position and out of contact with the teeth of the ratchet-gear, substantially as described.

2. In a ratchet-and-pawl locking and releasing mechanism, the combination with a ratchet-gear having a guide-groove, of a pawl coacting with said ratchet-gear having a tongue adapted to engage with the guidegroove, a stop operating by the forward turnin g of the ratchet-gear to raise said tongue,and

with it the pawl, to bring the tongue into engagement with the guide-groove, whereby in the reverse movement of the ratchet-gear the pawl is maintained in an elevated position and out of contact with the teeth of the ratchetgear, and means to return the tongue to normal position and permit automatic reengagement of the pawl and ratchet-gear, substantially as described.

3. In a ratchet-and-pawl locking and releasing mechanism, the combination with a ratchet-gear, of a flange thereon having a guide groove, a pawl coacting with the ratchet-gear and having an integral depending tongue adapted to engage with the guidegroove, and a stop on said ratchet-gear operating in the forward turning thereof to raise said tongue, to bring it into engagement with the guide -groove, whereby, in the reverse movement of the ratchet-gear, the pawl is maintained in an elevated position and out of contact with the teeth of the ratchet-gear, substantially as described.

4:. In a ratchet-and-pawl locking and releasing mechanism, the combination with a ratchetgear of a flange thereon having a guide, a pawl coacting with the ratchet-gear and having an integral depending tongue carrying a guide-finger adapted to engage with the guidegroove, a stop on said ratchet-gear operating in the forward turning thereof to raise said tongue to bring its guide-finger into engagement with the guide-groove, and means for limitingthe forward turning of the ratchetgear, substantially as described.

5. In a ratchet-and-pawl locking and releasing mechanism, the combination with a ratchetgear, of a flange thereon having a guide groove, a pawl coacting with the ratchet-gear and having an integral depending tongue carrying a guide-finger adapted'to engage with the guide-groove, recesses formed in said flanges to permit the tongue to be raised and lowered, a stop on said ratchetgear operating in the forward turning thereof to raise said tongue to'bring its guide-finger into engagement with the guide-groove, and means for limiting the forward turning of the ratchet-gear, the combination being and operating substantially as and in the manner herein set forth.

6. The combination with the frame and sash of a transom or swinging window, of a looking and releasing mechanism located in said frame and comprising a journal engaged with the sash and turning therewith, a ratchetgear carried on said journal having a guidegroove, a pawl coacting with the ratchet-gear and having an integral depending tongue adapted to engage with the guidegroove, means on said ratchet-gear operating in the forward turning thereof to raise the tongue into engagement with the guide-groove, and a spring operating on said journal and tending normally to maintain the window or transom closed, substantially as described.

In testimony whereof we have hereunto set our hands in presence of two subscribing wit- IIGSSGS.

WILLIAM S. ROBINSON. CHARLES A. HAESELEY. Witnesses:

ALBERT J. HODGES, WILLIAM A. 0124111100.

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