US788702A - Sash-fastener. - Google Patents

Description

No. 788,702: PATLNTBD MAYQ. 1905.

- G. H. BRIGGS.

SASH FASTENER.

APPLICATION FILED APB. e. 1904.

nuenio/L u Witness@ O T'WS alaorbv NTTE Patented May 2, 1905.

GEORGE H. BRIGGS, OF AMESBURY,*MASSACHUSETTS SASl-ll-FSTENEH.

SPECIFICATION forming part of Letters Patent No. 788,702, dated May 2, 1905.

Application filed April 5, 1904. Serial No. 201,699.

T0 all whom t may con/cern:

Be it known that LGEORGE H'. Bniees,a resident of the town of Amesbury, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Sash-Fasteners; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the aeeompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to sash-fasteners, and has for its object to provide a fastener which is adapted to lock the upper and lower sashes to each other and also lock both of said sashes to the window-frame.

A further object of `the invention is to so construct the lock that it takes a certain combination of movements to actuate it. This lock is readily operated from the inside, but impossible to operate from the outside of the window.

With these and other objects in view the invention consists of certain novel features, which are herein set forth, and pointed out in the appended claims.

In the drawings, Figure 1 is a plan view showing one of the sashes and window-casing in section, showing the relative position of my lock when attached thereto. Fig'. 2 shows a portion of the window-casing' and sashes in elevation with my lock in position on the lower sash. Fig. 3 is a plan view of my lock with the top plate removed, showing the operating mechanism. Fig. 4 is a plan view of the case with the top plate and the actuating mechanism removed. Fig. 5 is a sectional elevation on line 5 5 of Fig. 4. Fig 6 is a plan view of the double bolt. Fig. 7 is an edge View of said bolt. Fig. 8 is a detail of the pawl with the actuating-spring attached thereto. Fig. 9 is a plan view of the lower disk, which is actuated through the operating handle or knob to control the lock. Fig. 10 is an edge View of the disk shown in Fig. 9. Fig.. 11 is the operating handle or knob. Fig. 12 is a plan View of the handle or knob shown in Fig. 11. Fig. 13 is a side elevation of the operatingknob and showing the broad pawl engaging the slots 26 and 31 in both ofthe rotatable disks.

Referring to the drawings, 1 is the upper sash. (Shownin section in Fig. 1.) In this sash is set a thin plate of metal 2, which plate has holes 3 through it at intervals, as shown in Fig. 2, for the reception of one of the locking-bolts.

At 4 is the parting-strip. (Shown in section in Fig. l.) This strip also has a metal plate 5 set into one face, which plate has holes 6 through it at intervals for the reception of the second bolt.

At 7 is the lower sash, to which is secured my locking device by screws 8 8 and 9. The locking mechanism is held within the easing 10, which easing has an upper plate or cover 11, that is secured in place by suitable screws. There are two locking- lmlts 12 and 13, .connected together at 14, (see Fig. 6,)so that they will work simultaneously and with one set of actuating mechanism to engage the holes in the parting-strip and those in the upper sash to lock them all together by one operation. At 1.5 is a pin projecting upward from the laterally-extended reduced lug 16, which is a part of said bolts. On this pin is pivoted the pawl 17, which pawl is acted upon to be pressed outward by spring 18. As these bolts are reeiprocated in and out they are guided through the holes 19 and 20 in the ease, the inner end of said bolt also beingl guided by the guide-lug 21, which is fixed to the bottom of the ease.

At 22 is the wire spring', one end of which has a turn around the post 23 and rests against the inside of the case as a fulerum, while the opposite end engages the boltsin the manner illustrated in Fig. 3 to press the same outward.

At 24 is an inwardly-projecting hollow hub on which is rotatably held the disk 25. (See Figs. 9 and 10). On the edge of this disk is a notch 26 for engaging the pawl 17. At about right angles to said notch is a raised portion 27, extending to the outer edge of said disk. At the edge of this raised portion on the periphery of this disk is a little eountersunk hole 28, which serves as an indicating-spot to be used in setting the lock, as is hereinafter described.

The operating knob or handle 29 has at tached to its lower end a disk 30, similar to the loose disk 25. It also has a notch 3l in its IOO periphery to register with that in said loose disk. Projecting downward from the under side of said disk 30 is a pin 32, which pin is for the purpose of engaging' the raised portion 27 on disk 25, so that when desired both disks may be made to turn together. The downwardlyprojecting trunnion 33 on the under side of the handle or knob enters the hollow hub 24, which forms a lower bearing for said handle to turn in, the upper bearing for said handle being formed by the collar 34, turning in a hole to receive it made in the top plate 11.

rI`he operation of my device is further eX- vplained as follows: The lock is secured to the lower window-sash by means of three screws, two of which are inserted at 8 8 through the top and one at 9 through the depending leg 26, which leg is set into the wood on the edge of said sash, making it im possible to remove the lock from the sash without Vtaking said sash out of the window-casing. When the top plate is in place, it is secured by screws some of which are inserted from beneath the casing, making it impossible to tamper with the lock without first removing it from the sash. In order to actuate the two bolts, it isv necessary to bring the notch 26 in the loose disk 25 and the notch 31 inthe disk 30 together in the position shown in Fig. 3. To make these two notches register, it is necessary to first bring the indicating-spot 28 to the front, so that it can be seen through the slot 35 in the casing. This is done by the pin 32 engaging the raised portion 27 on the disk 25 when the knob is turned in one direction. When the spot is brought into the position to be seen through the opening, it indicates that the notch 26 is in the proper position to engage the pawl, but which pawl is kept from dropping into said notch by the periphery off the upper disk against which it rests. Then'the handle is reversed and rotated slowly in the opposite direction until the two notches register, and the actuating-spring 18 throws Vthe pawl 17 into engagement with both of said notches at once. Then by turning the knob in the direction indicated by the arrow the bolts on which this pawl is pivoted may bek withdrawnv from the holes Sand 6 and the window unlocked. To throw the pawl out of engagement with the notches, the knob is turned in the opposite direction, and the pawl -is forced out of the notches, and so long as the pin 32 engages the raised portion 27, or either side thereof, the pawl 17 cannot engage the notches to'withdraw the bolt.

By my arrangement of bolting to the parting-strip and the opposite sash at the same time it is obvious that either the top or bottom window-sash may be lei't part way open or locked in any desired position without fear of any person reaching in and withdrawing the bolts, as these bolts cannot be'withdrawn except by a person on the inside, who must be able to see the indicating spot before the combination can be set.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction and operation of Ythe invention will be readily understood without requiring a more extended eX- planation.

Various changes in Ythe form, proportion, and the minor details of construction may be resorted to without departing from the spirit and scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A device of the character described comprising a casing having a hollow hub, a handle having a lower reduced trunnioniitting in said hub, said handle beingV provided with an integral enlarged disk having a notch formed therein, a second notched disk interposed between said handle and the wall of said casing and provided with a bore in which said hub fits, said disk being independent of said handle, means for causing the notches of said disks 'to coincide, a spring-pressed bolt working in said casing, anda spring-actuated pawl carried by said bolt and adapted to enter said notches when they coincide.

2. A device of the character described comprisinga casing having a hollow hub, a springpressed bolt working in said casing, a handle rotatably mounted in said hub and provided with -a notch, a notched disk interposed be- Ytween said handle and the wall of said casing and provided with a bore in which said hub lits, said disk being independent of the handle, means wherebyv the notches ofl said disk and handle are caused to coincide, and a springactuated pawl 'mounted on said bolt and adapted to enter said notches when they coincide.

3; A device of the character described comprising-a casing,a bolt working therein, said bolt being provided with two forwardly-extended locking members and a reduced guiding-shank, a spring secured in said casing and bearing against the shoulder formed by the reduced portion oi' `-said bolt, a plurality of notched disks, 'means for rotating the same, and-a -pawl Vpivotallymounted on said bolt andradapted to engage said notches, whereby a rotation Vof said disks will withdraw said bolt againstthe action of said spring.

In testimony whereof I have hereunto set my hand this 2d day of April, A.V D. 1904.

' GEORGE H. BR'IGGS.

In presence of- ROBERT C.' CLARK, DELL W. DOLBIER.

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