US1652856A - Sash fastener - Google Patents

Description

Dec 13, 19270 J. F. FLANNERY SASH FASTENER Filed July 31. 1926 INVENTOR ATTORNE Patented Dec. 13, 1927.

UNITED STATES PATENT OFFICE."

JOHN F. FLANNERY, OF NEWARK, NEW JERSEY.

sAsrr FASTENER.

Application filed July 31,

the trip is pressed inwardly by a finger of.

the person operating it the parts of the fastener assume a fastening position without further manipulation. The trip has another function in that it bears on the bottom of the projected latch to prevent the latch mov- 'ing downward to release the brace thus making it necessary to positively manipulate the fastener to close it.

The invention also provides a fastener which presents a flat neat appearance when in place and one in which the parts are held secure against rattling in both fastening and closed positions. V v

The invention is illustrated in the'accompanying drawings in which Figure 1 is a perspective view of a fastener in place on an upper sash, the fastener being closed. Fig ure 2 is a perspectiveview of the fastener in looking or extended position. Figure 3 is a vertical section through the centre of the fastener showing the fastener closed. Figure 4.- is a similar View showing the fastener open or extended and Figure 5 is a section on the line 55 in Figure 3.

The moving parts of the fastener are supported in a suitable casing or frame, having side pieces 10 and a front plate 11, the front plate 11 being suitably secured by screws 12 in the face of a side rail 13 of the upper sash of a window. This is the usual installation although it will be evident that it can be aifixed at other places, the parts being set in so that the front plate 11 is flush with the outer face of the part to which it is secured so as to provide a neat appearance.

Within the chamber formed within the side pieces 10, I arrange a latch ll which can be moved in or out of the casing, when projected the latch acting as the element against which the part to be fastened abuts and which can be folded within the casing v will be evident.

1926. Serial No. 126,111.

when in closed position. i This is usually done by pivoting the latch on a pin 15.

To hold the latch in its fastening or pro i jected position I provide a brace 16 which is usually pivot-ed as at 17 so that the brace can be swung outward to engage the latch to hold it in its fastening position. When the parts are folded or closed the brace extends downwardsubstantially flush with the outer face of the casing as shown in Figures 1 and 3, and the latch lies within or behind the brace and is concealed from view. These parts are usually made of sheet metal with sideflanges and these provide co-operating parts to hold the latch in extended position by the brace and in the form shown I illus- 1 trat-e the notches 18 in the flanges '19 of the latch which receive the-end of the brace as Underneath the latch 14 is a trip 20 has two functions one, to limit the downward movement of the latch when the latch is extended or projected andthe other is to act as amedium through which. the parts of the latch are moved to open or fastening position. 7

In theform shown thetrip is pivoted. as at 21 and is provided with a nose 22 that engages with an extension 23 on the latch when the parts are closed. -This will be evident from Figure 3. A suitable spring 24 holds the latch yieldingly in normal position. lVhen the latch is closed as shown in Figures 1 and 3, and it is desired to open it, a finger of the hand is placedfirmly against the upperpart of thetrip, this pushes the upper part of the trip inward against the influence of the spring2tand the latchl l is moved toward its fastening or projected position. As the latch movesout its outer end travels along the two edges 25 on the under face of the brace and thus moves the brace outwardly until the latch has cleared the end of the brace and the parts are in fastening position as shown in Figures 2 and 4:. a I

To release the latch to permit the parts to be folded the latch must be moved below its fastening position and to permit this I provide a notch or recess 26 in each side wall of the latch and the trip 20 is moved in slightly so that this notch or recess can ride down over the trip and this permits the latch to be lowered sufiiciently to clear the brace and be moved to this position by hand. As soon which brace the side walls of the casing and. the.

U-shaped bracing piece 28 is usually arranged to further strengthen the structureand to act as a support for the spring 27 when the parts are closed.v It will be noted that the appearance of the fastener is pleasing as it has the parts pressed in a fiat aligned. surface. In opening the latch, when the trip is pressed firmly in, the latch and brace are snapped into position and the movements take place instantly and no separate manipulation of the parts is necessary. In. closing. the latch, however, a more care ful' manipulation is necessary which is de sirable as the closing of the latch by unau thorized persons is therefore made diilicult.

The inward movement of the brace is limited by suitable means and I show fingers 29 which engage the inside face of the wall 11 when the brace is in its closed. position.

I claim:

1. In a sash fastener-,a casing having a recess, a latch pivoted at the recess, a brace pivotedv in the recess above the latch, both of these elements swinging outwardly to fastening, position and having co-acting means for securing them in fastening position, and a spring for'holding the latch in closed position. and. for holding it against the brace in open position. v

2. A sash fastener comprising a latch pivoted to swing outward, a brace pivoted to swing outward to secure the latch in its open position and a trip pivoted below the latch to hold it against downward movement when the latch is open and having a projection to force the latch to open position when. it is closed.

3. A sash fastener compri'sing'a frame, a latch in the frame and supported so that it can be projected from the frame and also made to lie Withinthe frame, a brace pivoted to the frame, the latch and. brace. having cooperating parts to hold. them. fastened relation when the latch is projected, the latch having a part to bear on the brace to move the brace outward when the latch is projected, and. a trip under the latch and having a part to' project the latch, the trip acting as an abutment. for the projected latch.

4. A sash fastener comprising a frame, a.

5. A sash. fastener comprising a frame, a

latch, a brace, a trip, the brace and thetrip having flatv faces to lie in. alignment with the frame and being pivoted. thereto, a nose on. the trip to project. the latch, theend. of the latch bearing on; the brace. to, movev the latter outward when the latch. is projected, whereby all the parts assume a fastened position when the trip is operated, and spring to yieldingly holdv the trip in normal position to limit the projected position of the latch, and a spring bearing on. the brace to. return it to closed. position. when it is released from the latch.

6. A saslrf astener' comprisingv a. flame, a spring pressed: trip in the frame, a latch pivoted above the trip in the frame, a latch pivoted. above the. trip and disposed so as to be projected when the trip. is pressed. and. a brace pivoted: above the latch and lyingv normally in front of it and disposed so as to be moved outward by the projected latch, the brace and. latchhaving, coacting, parts to hold them. securedin extended. position.

In testimony whereof I afli'x. my signature.

- JOHN F.

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