US498990A - Fastener for the meeting-rails of sashes - Google Patents

Description

(No Model.)

J. M. PORTRR.

R FASTRNRR FOR TBR MEETING RAILS 0F SASHRS. No. 498,990. Patented June v6, 1893.

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JOHN M. PORTER, OF BOSTON, MASSAOHUSMTTS.

FAASTNER FOR THE MEETING-RAILS OF SASHES.

SPFICATIN forming part of Letters Patent No. 498,990, dated J une 6, 1893.

Application filed January 9, 1893. Serial No. 457,779. (No model.)

` To @ZZ whom it may concern:

Be it known that I, JOHN M. PORTER, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Sash- Fasteners, of whichthe following description, in connection with the accompanying drawy ings, is a specification, like letters on the exact duplicates of one another it will be necessary only to describe one. The fastening member used upon the top rail of the lower sash has two fastening devices one of which is intended to lock the window in the closed position, and is properly constructed to draw the sashes into close engagement with one another; while the other of said fastening devices permits a limited movement of the sashes with relation to one another and then prevents further movement thereof, and may be employed when it is desired to fasten the sashes in a partly open position so as to provide for ventilation while preventing the opening of the sashes far enough to permit a person to enter through the window.

Figure l is a side elevation of a sash fastener and a port-ion of the window sashes to which it is applied the fastener being represented in proper position to lock the window; Fig. 2 a front elevation of the fastener detached, from the window sashes; Fig. 3 a longitudinal vertical section, the parts being shown in position to lock the sashes in closed position; Fig. 4 a similar view showing the parts in full lines in the position occupied when the sash is completely unlocked, and free to move in the window frame, and in dotted lines in position to permit only a slight opening of the window sufficient for ventilation. Fig. 5 is a front elevation of the fastening plate or member of the fastening that is connected with the upper sash, and Fig. 6

a rear elevation of the fastening member connected with the lower sash, showing the said fastening member as seen when looking from the outside of the window with the upper sash removed.

|The sash fastener embodying this invention consists of a fastening member comprising a frame piece having a base a, adapted to be securely fastened to the top of the meeting rail A of the lower sash by screws or equivalent fastenings indicated at 0,2 Fig. l. The said frame comprises side plates d3, a4, extending up from the base a between which side plates are supported the fastening devices proper which consist of a fastening 1ever b pivoted at b2 and having a handle portion b3 by which it is operated. The said fasteuing lever b is provided with a tongue or finger b5 which enters a recess czin the fastening plate or member c which is secured to the stile O of the upper sash and is preferably made in the form of a bent or angle plate having a portion c3 that extends under and is fastened to the lower rail of the upper sash, see Fig. l. The said recess c2 is made wider at the lower end than at the top as shown in Fig. 5, and the end of the locking finger h5 is wider than the narrower part of said opening, being of such width as to pass readily through the lower or wider part of the opening in moving from the position shown in Fig. 4, to that shown in Fig. 3.

lVhen the locking lever b is turned on its pivot from the position shown in Fig. 4, to that shown in Fig. 3, to lock the window its finger b5 moves in the are of a circle about the pivot b2 passing tirst rearward through the lower wider part of the opening c2 and then upward so that it nally comes to the position shown in Fig. 3, with the said finger at the rear of the fastening plate c and above the cross bar or bridge c4 of said plate at the upper end of the said opening c2. In this movement as the finger b5 comes to a bearing on the plate c it tends to pry the lower sash downward and the upper sash upward, and also to draw the two sashes together and thus the movement of the lever Z9 from the position shown in Fig. 4, to that shown in Fig. 3, draws the sashes into close proximity and into close engagement with one another and when in the position shown in Fig. securely locks the said sashes from up and down movement.

A spring d bearing against a projection d2 IOO sition shown in Figs. 1, 2, and 3.

on the lever b tends to throw the said lever toward one or the other of its eXtreme positions like the spring acting upon an ordinary sash fastener, or upon the blade of an ordinary pocket-knife.

The leverbis provided with alaterally projecting spring linger e which engages with notches of a notched plate e2 fastened to one of the frame plates as d3 as shown in Fig. 2, and thus fastens the lever in the locked po- The latch or locking spring e is in such position at the side of the projecting handle end bof the le. ver thatitcanl be readily grasped and pressed out of engagement with the notches yof the plate e2 by the operator when taking hold of the lever to move the fastener from the locked to the unlocked position.

' flhe'fastening member on the lower sash is also provided witha second fasteningdevice f also shown as a bolt or finger pivoted at f2 between the frame platesot3 d4 and projecting from'y the upper'ends thereof, the said bolt being movableon its pivot into and out from engagement with the locking plate c on the upnal slot or groove c5 to co-operate with the said locking device f. The said slot c5 is narrower than the wider portion ofthe'recess c2 'andconsequently cannot be engaged by the `linger?)5 of the 'locking lever b but receives the'upper endrof the bolt f when thrown forward as shown in Figs. 1 and The slot c5l in the plate c is of suchlength as to permita limited movement of the sashes when the bolt f is thrown forward into said slot as l.shown in Figs. l and 3 under which conditions' if the lever'b is unlocked the sashes may have a slight movement with relation vto one 'another sufficient to open .themtwo v'or'l three inches for the purpose of'ventilation,lat the end of whichmovementthe bolt f will bring up in the end of the slot `c5 and prevent further `movement of the sashes, which may thus be securely locked in partly open position. In order to permit of such 'partial opening of the sashes controlled by the boltj" it is of course necessary to'jdisengage the locking device which'fastens them in wholly closed position,'which is donev by moving the said locking device .to the position 4,-in which position both fastening devices of 'the lower sash are wholly disengaged from the fastening plate of the uppersash sothat the sashes may move freely' in the window frame. lWhen the win'dowis thus wholly unlockedit is desirable to prevent the locking lever b from being turned toward the locking position in which it might bear against the to lock the window as long as the locking bolt f remains in unlocked position.

'lhe locking lever f is prevented by the upper sash itself from being thrust forward far enough todisengage the locking device h until the said boltf comes in register with the opening c5 in the ,plate c when the said locking lever f itself may be,` thrust forward to lock the sash in partially open position when ,it also leaves the lever free to bethrown into locking position, whichcan be done however,

only when the sashes arey closed far enough to bring the finger b5 opposite the lower portion of the opening @inthe locking plate c as the en d of the tingerb5 is too wide to enter l except at the lower part of the vrecess c2. persashwhch is provided with a longitudi- The pivotal'movement'of'the bolt fuis limited by apinh passing through a slot h2 in the said bolt, ,whi oh is also acted upon vby a spring t engagingfwith a'pin orl projectiongi2 on the said `boltand tending to holdthesame in one or the other of its extremev positions.

The Ioperation will be readily understood. With both'locking devices in1 Ithepofsition shown in'full lines Fig.l 4, the sashes are unlocked and free to move and'when opened far enough to carry the `bolt f out `of range with the slot o5 neither locking device can be moved far enough to injure the upper sash, for the bolt f if moved slightly` inward would be arrested by theupper sash and.r could not engage `with thensameso as to impede its movement or lcause anyv damage, while, the locking 'lever b 'is prevented Vfroml being thrown into engagement with the upper sash by the catch g, b, When the window lis nearly closed the boltffmaybethrown forf4 ward asshown in dotted linesr Fig. 4, entering the slot'c'5 and thus limiting the opening movement of thesashes to .anamount Adetermined by the length of the said slot. f In this `position of thebolt f the Ylocking'lever b is disengaged from the catch g and can be turned Atoa position to securely lock the sashes when they are nearly closed, and in thus locking the sash'es -itwill draw lthem tightly together, the parts then comingv to the position shown infFig. 3, in which the sash is doubly locked, first bythe lever band second by the boltf.

Thesashrmay be unfastened and locked in partiallyopen position by 4merely throwing up the lever b as shown in fulland dotted linesFig. 4, or may be wholly unfastened so as to be free to open vto the full extent by then throwing back the bolt f and bringing the parts into the position shown in full lines Fig.l4.

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By this construction a Very strong and secure fastening is afforded which also draws the sashes firmly together so as to prevent rattling and to tightly close the window so as to exclude the air and weather as far as possible.

I claiml. A sash fastening comprising a fastening plate adapted to be secured to the upper sash and provided with a recess or opening and with a longitudinal slot, combined with a fastening member adapted to besecured to the lower sash having a locking lever provided with a finger to co-operate with the said opening and a bolt t0 engage with the said locking plate in the longitudinal slot thereof, substantially as described.

2. A sash fastening comprising a fastening plate adapted to be secured to the upper sash and provided with a recess or opening and with a longitudinal slot, combined with a fastening member adapted to be secured to the lower sash having a locking lever provided with a finger to comperato with the said opening and a bolt to engage with the said locking plate in the longitudinal slot thereof, and a catch for engaging said locking lever with the said bolt, substantially as and for the purpose described.

3. The fastening member consisting of a plate c adapted to be fastened to the stile and having an oifset c3 adapted to extend beneath the meeting rail of the upper sash said plate having openings c2, c5 combined with the fastening member adapted to be secured to the t-op of the meeting rail of the lower sash and provided with a locking lever pivoted in a Vvertical plane and having a linger adapted to enter the said opening c2 and pass to the rear of said plate, and bolt adapted to enter said opening c5, and a catch for engaging said lever and bolt whereby the former can be operated to engage the other member of the fastening only after the said bolt has been thrown into the recess c5, substantially as described.

4. The combination of the fastening plate c having a slot c5, and recess c'2 a portion of which is wider than said slot with the fastening member adapted to be secured to the lower sash comprising the pivoted locking lever b provided With a finger b5 wider than the slot c5 to enter said recess c2; a latch e to lock said fastening lever in engagement with the said recessed plate and the bolt to engage the fastening plate c in the slot c5, thereof, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN M. PORTER.

Witnesses:

Jos. P. LIVERMORE, M. E. HILL.

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