US1036583A - Sash-lock. - Google Patents

Description

W. J. DIEDRIGH.

SASH LOCK. APPLICATION ,I'ILED JAN. 10, 1912,

Patented Aug. 27, 1912.

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WILLIAM QT. DIEDRICH, OF 'WAUKESHA, WISCONSIN- SASH LOCK.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed January 10, 1912. Serial No. 870,438.-

To all whom it may concern:

Be it known that I, WILLIAM J. DIEDRICH, a citizen of the United States, residing at Waukesha, in the county of Waukesha and State of Wisconsin, have invented certain new and useful Improvements in Sash- Locks, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to new and useful improvements in sash locks and fasteners and has for its object to provide a device which will lock both sashes, in either their open or closed positions, at one and the same time.

A further object of the invention resides in providing means to retain the'device in its ineffective position, ma be raised and lowered as ordinarily, an a still further object resides in providing such a device as may be easily applied and one which maybe quite readily operated.

A further object of the invention resides in providing a device which is adapted for application to the meeting rail of the lower sash and which is designed to project over the meeting rail of the upper sash and still another object of the invention resides in the provision of a double locking bolt which is movable laterally of the device so as to enga e the side molding of the one sash and the side rail of the window casing thereby causing the sashes to bind tightly against the casingand preventing undue separation of the meetin rails of-the sashes.

Another ob ect of the invention resides in providing a device which is extremely simple and durable in construction, inexpensive tomanufacture, and one which will be very eflicient and useful in operation.

With these and other objects in view, my invention consists in construction, combination and arrangement of arts as will be hereinafter referred to and more particularly pointed out in the specification and claim.

In the accompanying drawing forming a part of this application, Figure 1 is a perspective view showing my device applied to use. Fig. 2 is a horizontal section through the device and a portion of the window cas- 'ng, and, Fig. 3 is a perspective view of the locking bolt removed.

In carrying out my invention, I shall refer to the drawing in which similar reference whereby the sashes the novel features of.

characters designate corresponding parts throughout the several views and in which 1 indicates a window casing or frameQwithin which is slidably mounted the upper and lower sashes 2 and 3, respectively, said sashes being separated from one another in the casing 1 by the usual dividing strip or bead 4. A casing or housing 5 formed preferably of wood having a removable top 6 thereon, is secured to the u per frame of the lower sash 3 by means 0 the screws or the like 7 and the one side and end of this housing or casing is ofiset to provide square shoulders 8 and 9, respectively, the offset portion forming the shoulder 8 being adapted to receive therein the dividing strip or bead 4, while the other offset portion forming the shoulder 9, is adapted to receive the one side frame of the upper sash 2. A solid portion- 10 formed in the one end of the housing or casing 5 separates a pair of channel-ways or the like 11 and 12, respectively, the one channel-way 12 continuing through the shoulder 9, while the channel-way 11 continues through the one end of the casing, while both of said channel-ways terminate at their opposite ends and their hollow portion 13 at the other end of the casing or housing 5.

A locking bolt 14 of substantially Y-shape, is provided and mounted in the casing 5 so that the two arms thereof are disposed,

respectively, in the channels 11 and 12, while the connection of the two arms thereof is dlsposed in the hollow portion 13, and the dependent stem 15 of the bolt disposed opening 16 in the one end through a slot or of said casing. The two bifurcated or spaced arms of the bolt 14 are designed coincident to the channels 11 and 12 so that one is considerably longer than the other, in view of the ofiset portion on the one side of the casing, and in order to dispose the bolt normally in such position as to permit the ends of the arms to project through the openings in the end of the casing, a coil spring 17 is provided and encircled about-the stem 15 of the bolt between the one end of the casing and the junction of the arms of said bolt. The tendenc of this spring will be to force the free en s of the arms of said bolt through the openings formed by the channel-ways 1i. and 12 and the end of the casing, and in order to withdraw the bolt against the tension of the spring, for a purpose to be to the one side rail of the casing 1' and the.

adjacent side framev of the upper sash 2,

said strips being provided with a pluralityof openings 21 which aline with one another and register with sockets or openings 22- in the casing and sash frame, and the casing 5 with its locking bolt carried there'- in, is so designed and applied to the lower sash 3 as to dispose the one side thereof over the lower frame of the upper sash and permit the two arms ofthe locking bolt to aline with the line of openings in the respective strips 19 and 20 Thus, it will be seen that the arms of the bolt 14, as they are forced outwardly, by the tendency of the spring 17, are adapted to enter the openings 21 of the strips 19 and 20 and simul-' taneously lock the respective sashes in any adjusted position with respect to one an-.

other. The normal tendency of the spring 17, as stated above, is to force the bolt outwardly, and in order to retain the bolt in its ineffective position so that the sashes may be raised or lowered'regardless of the sash look, I provide the longer arm of the bolt 14 with a plurality of n'otches or teeth 23, while pivotally disposed in a-slot 24 in the one side wall of the casing 5, is a'pawl 25. The effective end of this pawl is adaptedfto engage the teeth or notches 23 in the one arm of the bolt to retain said bolt in its inefiective position, and the pawl, itself, is manually operable by a finger piece 26 formed on the opposite end thereof and which is designed to project beyond the one side wall of the casing 5.

In operation, it will be seen that after the device has been set up and applied to the upper frame of the lower sash of the window and the strips 19 and 20 properly applied to the casing and upper sash, respectively, in alinement with the arms of the locking bolt, said device may be permitted to effectively lock the sashes in their closed positions, as shown in Fig. l, by merely permitting the lockingbolt'to project beyond the casing through the tendency of the spring 17 As above stated, the openings in the strips 19 and 20 are disposed in alinement with one another and as they are so arrangedas to be received by the arms of the locking bolt at the time the two sashes are in their closed position, it will be seen that said sashes may be held locked in this position. Should it be desired to raise the lower sash, regardless of the position of the upper sash, the same may by accomplished by merely drawing the bolt outwardly by grasping the finger piece 18 and raising the sash to the desired height,

whereupon the bolt may be released and'the arms thereof again engaged with the alining openings in the strips 19 and 20. When it is desired to lower the upper sash, vice versa is true, or both the upper sash and lower sash may be lowered and raised, re-

spectively and then locked-in their adjusted positions in the same manner as above described. Thus,-it wwill betseen that in no matter what position either the upper or lower sash may be, both may be locked and prevented from further movement until the release of the locking bolt 14.;Shou1d it be desired 'to eliminate the use of this sash lock entirely so that the sashes may be raised or lowered without notice being'given to this device, the same may be inefi'ectively disposed by merely withdrawing the looking bolt and engaging the effective end, of the pawl 25 with the teeth 23 on the one arm of the bolt. Whenever it is again. desired to place the sash lock in use, it is only necessary to release the engagement of the pawl 25 with the teeth, 23, whereupon the spring 17 will force the ends of the arms of the locking bolt outwardly toengage the openings in the strips 19 and 20.

By providing a housing which when secured tothe meeting rail of the lower sash has a portion thereof projecting over the meeting rail of the upper sash, and by providing a locking boltwhich is movable laterally of the housing, it will be seen that the rattling of said sashes will be prevented, since the same will be caused to bind against the casing or window frame. Furthermore the lateral movement of the locking bolt does not force the meeting rails of the sashes apart but simultaneously causes the same to bind against the one side of the casing and, in fact, retains said meeting rails together, thereby preventing the wind from blowing therethrough. It will still further be seen that by permit-ting the housing to project over the meetin rail of the lower sash, and providing a doulfle locking bolt, the arms of which are projected over the meeting rails of the respective sashes, the malicious picking of said lock will be practically impossible.

From the foregoing, it will be seen that I have provided simple, inexpensive and efiicient means for carryin out the objects of the invention, and while the elements described are most well adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention. I

What I claim is In a sash lock of the class described, the;

combination with a'window casing and an upper and lower sash slidably mounted oses said upper sash, a pair of metalllc keeper strips secured respectively to the one side rail of the upper sash and the wall of said casing forward of said lower sash, said strips being provided with a plurality of openings therein, a U-shaped locking bolt lnclosed within said housing and slidable laterally therein, the arms of said bolt being of unequal lengths and adapted to project through the one side of said housing to respectively engage the op strips on the wall of said casing and the side rail of the upper sash,.a stem carried on the enings in the keeper base of said U-shaped bolt and projected through the opposite side of said houslng, the projected portionof said stem being disposed over the meeting rail of the lower sash, whereby the same may be readily grasped to operate said bolt, a coil spring encircling said stem between the base portion of said bolt and the one side wall of saidhousing to normally dispose said bolt in its effective position, and means to retain said locking bolt in its withdrawn and inefiective positlon.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

WILLIAM J. DIEDRICH.

Witnesses I L. G. WILLIS, ROBERT L. Hour.

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