US1169104A - Side sash-lock. - Google Patents

Description

A. TURNEY.

SIDE SASH LOCK.

APPLICATION FILED FEB. 20. m5.

Patented Jan.l8,1916@ A TTOR/VEV ALBERT TURKEY, OF KANSAS CITY, MISSOURI.

SIDE SASI'I-LOCK.

Specification of Letters Patent.

Patented Jan. 18, 1916.

Application filed February 20, 1915. Serial No. 9,574.

To all whom it may cormern:

Be it known that I, ALBERT .TURNEY, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented, certain new and useful Improvements in Side Sash- Locks, of which the following is a specification.

This invention relates to side sash locks, and my primary object is to produce a device of this character which looks the sashes against operation and takes up the play provided for the free sliding of the sashes, thereby preventing rattling of the sashes in the frame when the Wind is blowing.

Another object is to produce a sash lock having a bolt characterized by an initial movement which locks the sashes against free raising and lowering movements and which simultaneously adjusts the sashes if not accurately positioned-to accommodate subsequent or continued movement of the bolt.

Another object is to produce a sash lock characterized by means which necessitates a peculiar and definite manipulation to effect the complete looking or unlocking opera-' tions. I i p g Specifically my object is to produce a lock comprising a bolt having] a cross-head, a sheath for the bolt, and ahollow keeper having a slot or eye; the headof the bolt when in the keeper preventing operation of the sashes, and being adapted to be fitted through the slot or eye and then turned crosswise thereof. back of the keeper to lock said bolt against withdrawal and simultaneously clamp the sashes against rattling movement.

With these general objects in view, the invention consists in certain novel and peculiar features of construction and combina-. tions of parts as hereinafter described and claimed; and inorder that it may be fully understood reference is to be had to the ac-l companyine; drawing, in which Figure 1, is an inner face view of a part of a window casing'and its sashes equipped, with a side sash lock embodying my inven-. tion. Fig. 2, is a horizontal sectionon the line 1111 of Fig. 1, of the casing and upper sash. the sash lock member of the lower sash being shown in elevation. Fig. 3, is a view similar to Fig. 2, but with the sash lock bolt in a different position. Fig. 4, is a detail perspective view of the bolt.

Fig. 5, is a plan view of a modified form of sheath for the bolt. Fig. 6, is a cross section through the bolt. Fig. 7, is a longitudinal section through the bolt.

In the said drawing 1 is a stile of a window frame, 2 the parting bead or stop, 3 the upper sash, 4 the lower sash and 5 and 6 the meetingrails of said sashes.

One side rail of the sash 3, is provided Wltll one or more sockets 7 bored from its inner side, and set. horizontally in each socket is a hollow circular keeper 8 of less depth than the socket, and provided in its base or bottom with a diametric slot or eye 9 of oblongrectangular form. Preferably the maJor axis of the slot or eye is vertical. The keeper is preferably provided with latorally-projecting ears 10, fitting against and secured to the sash by screws 11, and between the ears the keeper is formed with marginal external flanges 12, to stiffen and strengthen as well as to give it a more finished and attractiveappearance.

Located on the upper side of the lower sash in thesarne vertical plane as the keepore, is a cylindrical sheath 13, provided with laterally projecting flanges 141, through which screws extend to secure the sheath to the sash. This sheath is preferably pressed by suitable dies, out ofsheet metal of suitable kind and gage, so as to provide a slot 16, for a purpose which is hereinafter explained. Formed in said sheath is a tortuous slot, consisting of an oblique portion 17, a transverse portion 18, communicating at one end with the front end of the oblique portion, a longitudinal portion 19,.extending forward from the other end of the transverse portion, and an oblique portion communicating at one end with the front end of the longitudinal portion and terminating at the other end in a shallow pocket 21 formed in the front wall of the slot. The extremities of the slot preferably lie at opposits sides of the axis, of the heath.

Fitting slidinglv and rotatably within the sheath is a bolt 22, reduced near its front end to provide a neck 23 capable of turning in the eye or slot of the keeper and termihating in an oblong, rectangular, tapered, head 24, capable of passing through said eye or slot when properly disposed with relation thereto, and to effect the advance and withdrawalof the bolt it is provided with a finger piece or handle 25, extending through the slot of the sheath, the finger piece or amount of grooves or and its opposite ends lie in transverse planes a distance apart approximately equal to the depth of the keeper, so that when the handle 25 is pressed or pulled forwardly through said portion on the slot, the bolt wi l be advanced until its head is within the keeper and in proximity to the slot or eye thereof, in which position it will be noted, it acts as a lock to prevent raising of the lower sash or lowering of the upper sash. It is to be noted also that the parts are so proportioned that the rotation of the bolt incidental to the movement of the handle through portion 17 of the slot, will be such that the major axis of the head of bolt will extend cross wise of that of the slot or eye of the keeper and hence admit of sufficient vertical play of either sash to produce a decided click through contact of the bolt head with the keeper, liable to attract the attention of a l member of the household. It will be further noted that the said oblique portion of the slot causes the tapered bolt head to in effect, screw its way intothe keeper in the event that the boltand keeperare not perfectly alined through a slight Verticalor lateral displacement of either or both sashes,t his displacement being possible because of the play which the sashes must have to operate with the requisite freedom. If the sashes are relatively displaced as suggested, the

tapered head of thebolt, because of the leverage possessed through its screwing action, is easily caused to exert suflicient pressure against the wall of the keeper to restore the sashes to proper relative position.

After'the sashes have been locked asde-' scribed, the handle is caused to traverse the transverse portion 18 of the slot to reversely rotate the bolt until the head, thereof occupies a vertical position. The handle is then advanced through the longitudinal portion 19 of the slot to slide the'bolt forward until its neck occupies the slot or eye of the keeper and its head is spaced beyondthe latter. The handle is then caused to traverse the second oblique portion of theslot and thereby rotate thebolt reversely to its last rotation, thisreverse rotation disposing the head of the bolt crosswise of the slot or eye of the keeper and incidentally iu partin g backward movement to the bolt to cause its slot or eye v head to press the upper sash and pull the lower sash against the parting head or stop if one or both sashes are partly open, or to clamp the meeting, ralls of the sashes together if the latter are both closed, the

entrance of the handle into the pocket 21, guarding against slipping thereof and consequent accidental back rotation of the bolt.

If it is desired to provide for a greater range of take-up or adjustment of the sashes without increasing thelength of the bolt or changing the relative, position of the keeper, the rear sides of the head of the bolt may be provided with a cam surface 26, adapted to "engage the walls of the slot or eye and exert pressure thereon tending to clamp the sashes against the parting'beador stop or to clamp the meeting rails of the sashes together,

it being apparent that the cam surface of the head and the cam portion 20 of the slot shoot a greater'range of adjustment or take-' up thaneither could accomplish alone with out increasing its pitch or length. To increase its pitch would require the application of more power by the operator. To

' increase {its length materially would be impracticable because it would make more inconvenient the gripping of the handle, as will be readily seen by reference to Fig. 1.

Reverse manipulation of the handle restores the parts to their initial or unlocked position, and in this connection it is desired to call attention to the fact that the peculiar tortuous course which the handle must follow, would make -it somewhat puzzling for a person unfamiliar with the lock, to unfasten it from the outside of the window, even though such person had free access to the handle through the removal of a section of glass. If a person operated thebolt to the extent ofsliding'it back through portions 20, 19, and 18 of the sl0tthe familiar course of an ordinary door bolt,he would unclampthe sashes but would still be unable to operate either of them, as the head of'the bolt would'be in the keeper; An unsuccessful attempt at this juncture to open either sash might produce a noise liable to alarm the household or altogether discourage the attempt toetfectanentrance;

The modified construction shown is even more puzzling of operation in that it is not only necessary tocause the handleto follow the course of the slot, but it is also'neces'sary to partially rotate the handle around its own axis,v at one or more points where the slot changes its course, and at the front end to effect the removal of the handle from pocket 21, c c Referring now to the last-named construction, it will be seen that the handle is capable of turning or swiveling in the bolt, and that where it extends through the sheath it is of 'elongated or elliptic form in cross section, as at 27, themajor axis of the ellipse being greater than the width of the slot of the sheath at all points except where the course of the slot sharply changes and at the pocket end thereof. It will thus be seen that unless the handle is partially rotated at each sharp turn of the slot it could not make the turn and that this prerequisite to further movement would be puzzling to one unfamiliar with the lock, and perhaps discourage any further attempt to perform the unlockingoperation. The necessity also of rotating the handle to withdraw it from the pocket 21 and dispose it for free travel in the cam portion 20 of the slot would also not immediately occur to a person unfamiliar with the construction, it being borne in mind that the lock would not be under observation of such person and that it would be in a position where it could not be conveniently handled. In Fig. 5 the offsets or pockets of the tortuous sheath slot at the junctions of the portions 18 and 19, and 19 and 20, are respectively identified by reference characters 28 and 29, and a reference to the arrows in Fig. 5, will show how the handle must be rotated as it enters pockets 28 and 29, respectively, before the withdrawal of the bolt can be continued.

In both the rigid and swiveled handle constructions, it is preferable to secure the handle permanently to the bolt and this is best accomplished by fitting the handle clear through the bolt and upsetting or heading its lower end; To thusupset or head the handle, it is necessary to have access to it with a suitable tool or projection, and as it cannot be upset or headed until the bolt is fitted in the sheath, it is necessary to provide an opening in the bottom of the latter, this opening being represented by the slot 16, hereinafter mentioned.

As the proper manipulation of the bolt and the functions of the keeper and vari ous parts of the tortuous slot of the sheath have been explained, no recapitulation of the operation is necessary other than to call attention to the fact that the extremities of the sheath will tend to confuse a person attempting the withdrawal of the bolt, who is familiar only with the conventional type of slide bolt and sheath, in which both ends of the slot of the sheath extend in the same direction. It will also be well to state that the keeper adjacent the lower edge of the upper sash is adapted for engagement by the bolt when it is desired to lock both sashes in closed position, and that the keeper or keepers above are provided for engagement by the bolt when it is desired for purposes of ventilation to lock the upper sash partly lowered, the lower sash partly raised, or both sashes partly open.

From the above description, it will be apparent that I have produced a side sash lock possessing the features of advantage enumerated as desirable, and while I have illustrated and described the two embodiments which at this time, I consider most valuable, it is to be understood that I reserve the right to make all changes falling withing the spirit and scope of the appended claims.

I claim:

1. Thecombination with relatively movable parts of a keeper, mounted on one of said parts, provided with an elongated eye, a sheath mounted on the other part and provided with a tortuous slot comprising a transverse portion, a longitudinal portion communicating at one end with one end of the transverse portion and a pair of oblique portions extending in opposite directions from the remote ends of said longitudinal and transverse portions, a. bolt extending slidingly and rotatably in said sheath provided with an elongated portion capable of passing through the eye of the keeper and a handle projecting radially from the bolt through the slot of the keeper and occupying one extremity of the tortuous slot when the bolt is withdrawn and the other extremity of the tortuous slot when the bolt is fully advanced, the bolt fitting loosely in the keeper but not in the eye thereof when the said handle occupies the transverse portion of the tortuous slot or the adjacent end of tile communicating oblique portion of the s 0t.

2. The combination with relatively movable parts, of a. sheath mounted on one of the parts, provided with a tortuous slot and a pocket opening into the said slot at a bending point thereof, a bolt fitting slidingly and rotatably in said sheath and adapted to engage the other of said parts to lock the same, and a handle projecting from the bolt through said slot, said handle being of oblong rectangular form at the point where it extends through the slot so as to be incapable of turning in the slot except when engaged with said pocket.

3. The combination with the upper and lower sashes of a window, of a hollow keeper mounted within one of the sashes and a bolt sheath mounted on the other sash, the sheath having a. tortuous slot and provided at one or more of the bending points thereof with an offset or pocket, a bolt fitting slidingly and rotatably in the sheath, and a handle swiveled to and projecting radially from the bolt and through said slot; the portion of the handle extending through the slot being of substantially elliptic form in cross section and of such proportion that it cannot rotate in the slot in its travel therethrough to advance or withdraw the bolt ex cept when it enters a pocket.

4. In a locking device, a sheath provided with a tortuous slot having three bending points and a pair of pockets each opening into the slot at a bending point thereof, a bolt fitting slidingly and rotatable in said sheath, and a radial handle for and swiveled to said bolt and extending through the slot of the sheath; said handle at the point Within the slot being of oblong rectangular form and so proportioned that it cannot travel past the said pockets ithout entering the same and being given swivel movement in the bolt While occupying a pocket.

' 5. The combination With tWo movable parts, of a sheath carried by one of said parts, provided With a tortuous slot, a bolt fitting in the sheath and capable of sliding and turning therein until engaged with the other part, and a; handle sWiveled to and Copies of this patent may be obtained for projecting from the bolt and through the tortuous slot of the sheath; said handle being of oblong-rectangular form in cross section Where it extends through said slot movement. I

In testimony whereof, I aflix my sig-- nature, in the presence of tWo Witnesses. 1 ALBERT TURNEY.

Witnesses HELEN C. Ronenns, G. Y. THORPE.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. a I a

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