US612170A

US612170A - mcadams

Info

Publication number: US612170A
Authority: US
Publication date: 1898-10-11
Anticipated expiration: 1915-10-11

Description

No. 6l2,l70. Patented Oct. ll, I898.

W. A. MGADAMS.

SASH FASTENER. (Application filed Mar. 11, 1897.)

2 Sheets-Sheet I.

(No Model.)

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W. A. MCADAMS.

SASH FASTENER.

(Application filed Km. 11, 1897.) (No Model.) 2 Sheets-Sheet 2.

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U T D STATES PATENT 'OFFIcE.

IVILLIAM A. MGADAMS, OF NEIV YORK, N. Y.

SASH-FASTEN ER.

SPECIFICATION forming part Of Letters Patent N0. 612,170, dated October 11, 1898.

Application filed March 11,1897. Serial No. 626,913. (No model.)

To (I/ZZ whom it mag concern.-

Be it known that I, WILLIAM A. MCADAMS, of New York, (Brooklyn,) in the county of Kings and State of New York, have invented a new and useful Improvement in Sash-Fasteners, of which the following is a specification.

My invention relates to an improvement in sash-fasteners, one object being to provide a so-called burglar-proof sash-fastener, by means of which the upper and lower sashes may be securely fastened in any desired position relative to the casing, the lower sash being adapted to be secured directly to the casin g either closed or in any raised position within a limited scope and the upper sash being adapted to be secured directly to the lower sash either closed or in any desired lowered position within a limited scope.

A further object is to provide certain improvements in the structure of the sash-fasteners, so that the window is locked and released in an improved manner and the parts are effectually shielded from the outside of the window, so that it is practically impossible to release the fasteners from the outside.

A further object is to provide a fastener which will be very simple in construction, cheap to make, and yet verystrong to enable it to successfully withstand the hard knocks to which it is liable to be subjected.

A practical embodiment of my invention is represented in the accompanying drawings, in Wl'llCll- Figure 1 represents an inside view of a window and its casing, the lower and upper sashes of the window being represented in full lines as closed or locked, the lower sash being shown slightly raised and the upper sash slightly lowered in dotted lines. Fig. 2 is a transverse section in the plane of the line 2 2 of Fig. 1. Fig. 3 is an end view of one of the locking members of the fastener. Fig. 4 is a longitudinal vertical section in the plane of the line i t of Fig. 3. Fig. 5 is a top plan view of the form shown in Fig. 3. Fig. 6 is an end View of the other locking member of the fastener. Fig. 7 is a longitudinal vertical section in the plane of the line 7 7 of Fig. 6, and Fig. 8 is a top plan view of the form shown in Fig. 6.

The window-casing is denoted by A, the

' lower sash by B,and the upper sash by C. The

sash-fastener is shown as comprising two independent locking members D D, the several parts of each of the said members of the fastener corresponding to each other in regard to operation, but being of slightly different form to adapt them each to its particular position upon the lower sash B. Each of the fastening members D D is secured upon the top of the lower sash B, at or near opposite sides of the sash in the present instance. The fastening member D is so located that its bolt will be adapted to enter open-ended notches e in the notched rack E, secured to the casing A, adjacent to the lower sash B, and extending upwardly a short distance beyond the top of the same. The fastening member Dis so located that its locking-bolt is adapted to enteropen-ended notches f in the rack-bar F, secured along one of the side rails of the upper sash C and extending from a point near its bottom to a point near its top.

Proceeding to describe the fastening member D of the sash-fastener, which member is represented in detail in Figs. 3, 4, and 5, the base-plate is denoted by G, and it is provided with a suitable open-ended socket g for the reception of the sliding bolt H. The openended socket g is provided with longitudinal grooves g 9 along its sides and a groove g along its bottom, so that the sliding bolt H, which is preferably rectangular in cross-section, is caused only to engage the said socket at its edges, which construction enables the socket-plate G and the bolt H to be used after casting and without the necessity of finishing or filing oif the said parts. The plate G is adapted to be secured firmly to its support by means of screws I, which pass through the plate G along its depressed groove 9 in the socket g. By causing the screws I to secure the plate G at this particular point I am enabled to procure a double functionviz., first, when the plate H is in position it efiectually prevents the said screws from being removed, and, secondly, the said screws do not need to be so carefully fitted that their heads will have to be forced down below the bottom of the groove 9 as the bottom of the said groove is spaced from the bottom of the bolt II, as clearly shown in Fig. 3. The plate G is further provided with a laterally-extended lug g, which is adapted to receive a screw 11, which screw serves the double function of a stop or abutment for the bolt-operating mechanism and also to more securely fasten the plate G to its support.

The mechanism for sliding the bolt H into and out of engagement with the notches f is as follows: A hood projects upwardly and laterally from the bolt H, the said hoodbeing preferably formed integral with the said bolt-as, for instance, by making the same in a single castin g. Th'ehood consists of a suitable web It and a laterally-extended circumferential portion or rim h, whichcircumferential portion of the hood serves to guard the locking-disk from View, except from the interior, when the fastening member is in position. The web 71 is extended downwardly to form a suitable lug 7L2, which lug is in position to permit the bolt and hood to have a limited sliding movement when between the screw 7 and another suitable abutment g ,extended laterally from the side of the plate G upon the same side upon which the lug g is located.

The locking-disk hereinbefore referred to is denoted by J, and it is provided with a suitable operating handle or knob j, extending inwardly therefrom, and it is also provided with a stub-axle or neck j, which extends forwardly from the disk and serves as a bearing or pivot pin, by means of which the said disk is mounted to'rotate on the said web h. The rotary locking-disk J is mounted on the said web it in the present instance by passing a suitable collarj around the end of the said stub-axle which projects through the opposite side of the Web and then spreading or upsetting the end of the stub-axle, as shown atj The disk, its handle, and the stub-axle are preferably cast in a single piece. The disk J is provided with a suitable notch j in its periphery, which notch is to be used to re lease the locking-bolt, as will hereinafter appear.

The plate G is provided along one side with a suitable track 9 which extends from its inner end to a point near the abutment g a socket 9 being thereby formed between the said abutment g and the outer end of the track g. The top of the track 9 is adapted to engage the bottom of the web has the bolt H is slid forwardly and backwardly for looking and releasing the same, so that any blows to which the said web portion may be subjected when the sash B is raised to its full movement will be received directly on top of the said track when the fastener is unlocked, whereby any tendency of the web portion to break off from the bolt is obviated. hen the bolt is in its thrown or locked position, the disk J is adapted to enter the socket g and lock the said bolt. WVhen it is desired to release the bolt, the disk J is rotated until the notch 7' therein coincides withlthe track g, when the said bolt and its operating mechanism may all be slid inwardly until stopped by the abutment c.

Proceeding to describe the locking member D, the several parts of the said member correspond to the parts hereinbefore described relative to the member D. The web in this instance is projected upwardly and outwardly 'upon the opposite sides of the bolt, and the disk and its operating-handle have the same form as in the member D. The track in this particular form extends from the rear of the plate Ga distance toward its front, and the abutment upon the plate is located at the rear end of the plate.

The portion of the rack F which is free from engagement with the side of the upper sash O is curved in cross-section, so that when the bolt H is engaged therewith to lock the two sashes together the said sashes are permitted to have a lateral movement. The portion of the rack E which is not engaged with the casing A is preferably extended at right angles thereto. Because of the slots 0 being openended the locking-bolt in the member D is not held rigidly in position, the lower sash 13 having thereby a limited lateral movement.

By constructing the locking members as above described it will be seen that they may beimmediately locked and unlocked from the inside by a person who may readily perform the necessary operations by the sense of touch, if so desired-for instance, in the dark. Again, by mounting the bolt-operating parts at a point to the side of the locking-bolt I am enabled to have plenty of room to grasp the handle or knob of the locking-disk for operating the same. Furthermore, it will be seen that the screws which secure the plate in position are effectually guarded by the sliding bolt, and when sash C is locked opensix or eightinches,forinstance-a person on the outside cannot reach in with a long screw-driver and take the members off or reach the combination to undo it or remove all the screws that secure the rack F, as it is then lowered into a safe position between the sashes. The parts of the members cannot become lost, as the sliding bolt and its operating mechanism are allowed a limited sliding movement only because of the abutments on the base-plate.

The fastening as above described consists of a minimum number of parts, the said parts being so adjusted as to render them free from operation by a person exterior to the window, the several parts at the same time being very light, yet strong and not liable to break. Another great advantage is that the several parts may be cast and put up in the rough, thereby doing away with the necessity of finishing'or filing the rough edges of the same.

\Vhen both sashes of the window are closed, the member D only is necessary to lock the window closed, as this member serves to lock two sashes against movement relative to each other; but when it is desired to lock both sashes of the window open it is then necessary to use both of the members of the fastening device. The fastening device D may be located at the middle of the top of the lower sash l3, and the rack F may be secured along the central rail of the upper sash when such upper sash is provided with a central rail, if so desired.

It will be seen that the abutment 9 serves a double function-viz., as a stop to limit the movement of the sliding bolt II in one direction and also serving as an effectual guard or screen, whereby the combination which looks and unlocks the bolt is entirely protected from View from the outside, thereby forming an additional safeguard to the rim h, which protects the periphery of the lockingdisk.

It is evident that slight changes might be resorted to in the construction and arrangement of the several parts without departing from the spirit and scope of my invention. Hence I do not wish to limit myself strictly to the structure herein set forth; but

That I claim is- 1. In a sash-fastener, a suitable base-plate, a locking-bolt having a sliding movement therein and means for operating the bolt comprising a hood uprising from the bolt and a rotary disk carried by the hood in position to be engaged with and disengaged from the said base-plate for locking and releasing the said bolt, substantially as set forth.

2. In a sash-fastener a base-plate, a locking-bolt fitted to slide therein, means for operating the said bolt comprising a hood uprising therefrom, a rotary disk mounted in the hood in position to be engaged with and disengaged from the base-plate for locking and releasing the bolt and abutments on the baseplate in position to engage the said hood for limiting the sliding movements of the bolt in both directions, substantially as set forth.

3. In a sash-fastener, a base-plate, a lockin g-bolt fitted to slide therein, a hood-projecting from the said bolt, the said hood comprising a web portion and a laterally-extended rim, and a rotary disk mounted in the web and within the plane of the edge of the said rim, the said rotary disk being mounted in position to be engaged with and disengaged from the base-plate for locking and releasing the said bolt, substantially as set forth.

4. In a sash-fastener a base-plate having a track and a recess adjacent thereto, a locking-bolt fitted to slide within the said baseplate, and a locking-disk mounted to rotate on a horizontal axis parallel to the track in a support carried by the said bolt, the said disk being provided with a notch in its periphery and being mounted in position to have its periphery enter the said recess in the baseplate to lock the bolt, the notch in the disk being so located that when the disk is rotated the notch will coincide with the track upon the base-plate for permitting the locking-bolt to be released, substantially as set forth.

5. The combination with the upper and lower sashesof a window, of asash-fastener comprising a base-plate secured to the lower sash, a locking-bolt having a sliding move ment therein and means carried by the locking-bolt for lockin g it to and releasing it from the base-plate, and a rack-bar secured along one of the side rails of the upper sash, the said rack-bar having its free portion curved inwardly toward the lower sash and provided with open-ended notches adapted to receive the said bolt and at the same time permit the sashes to have a limited lateral movement relative to each other while the bolt is still retained within its notch, without injury to the said side rail of the upper sash, substantially as set forth.

6. In a sash-fastener, a base-plate, a locking-bolt fitted to slide therein, a suitable support uprising from the bolt, a rotary lockingdisk having a bearing-stem mounted in said support, and a disk-operating handle or knob, the said knob and bearing-stem both being formed integral with the said disk, substantially as set forth.

7. In a sash-fastener, a baseplate provided with a track, a locking-bolt having a sliding movement within the base-plate and means for operating the bolt comprising a hood uprising therefrom, the web of which is adapted to rest on the track when the bolt is in its unlocked position, and a locking-disk carried by the said hood, substantially as set forth.

IVILLIAM A. MCADAMS.