US1040156A - Window-sash lock. - Google Patents

Description

W. CUNNINGHAM.

WINDOW SASH LOCK.

APPLICATION nun OCT. 6, 1911.

1,040,156. Patnted 0@t. 1,1912.

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WINDOW SASH LOOK.

APPLICATION FILED OUT. 6, 1911.

Patent-ea 0011.1, 1912.

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15 efficiency spective view of a window including sashes shown partlyppenwith the lmproved UNITED STATES PATENT OFFICE;

WIFLLIAH CUNNINGHAM, OF NEW YORK, N. Y.

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' Specification of Letters men.

Patented Oct. 1, 1912.

Application filed October 6, 1911. Serial in. 653,237.

To all it may concern:

Be it known that 1, WILLIAM CUNNING- HAM, a citizen of the United States, residin I at New York, in the countyof New Yor 5 and State of New York, have invented 'certain new and usefu Improvements in Window Sash Locks, of which the following is a: speclfication.

This invention relates to improvements in attachments for window sash for locking the same against surre titious opening or surreptitious movement rom a stationary position when partly opened, and has for its object to improve the construction and increase the and utility of devices of this character.

Another object of the invention is to provide a device of this character which may be attached without structural change to window sashes of varioussizes and to window casings or frames of various forms and which operates to eifectuallyprevent the opening of the sash from a closed position and to lock thesash from movement from a partly opened position, thereby producing an effectual burglar-proof locking attachment. With these and other objects in. vlew, the invention consists in certain novel features of construction as hereafter shown anddescribed, and then specifically pointed but in the claims, and in the drawings illustrative of the preferred embodiment of the invention: Figure 1 is a side view of a portion of a window frame with the meetmg rail portions of the sash in section with the improved devices applied; Fig. 2 is a section on the line 22 of Fig. 1; Fig. 3 is a perspec tive view of the supporting plate of the vertical bolt; Fig. 4. is a perspective view of the perforated plate for the up er sash; Fig. 5 is a perspective view of t e horizontal locking bolt; Fig. 6 isa perspective view of the locking bolt housing. Fig. 7 is a ptelp locking device applie v The improved device may be applied to sashes of various sizes and to casings and frames-bf various forms, and forthe purpose of illustration thei'mproveddevice is.

shown applied to an ordinary construction of sash and frame, and in the drawings thus employed, 10 re resents a portion of a win- 1 dots-frame, 11 t e meeting railportionofthe lower sash, 12 the meeting rail portion of the upper sash, 13 a portion of one of the stiles or side members of the upper sash, 14 the parting stop and 15 the inslde stop.

The improved device com rises a housing or guide member 16 throughwhich a lockmg bolt 17 is slidably engaged, the bolt 17 being referred to for the purpose of this desoription as the horizontal bolt.- The housing 16 is formed with a longitudinal slot 18 and atransverse slot 19 communicating with the longitudinal slot at the inner end, and the bolt 17 is rovided withfa lateral pin-20 which slides t rough the horizontal slot 18 and enters the transverse slot 19 when the The slot 18 isopenat the inner end of the housing so-that the bolt 17 may be entirely removed from the housing when r ulred. ttached. to the inner face of the stile 13 .bolt is rotated at the inner end of its move ment as hereafter explained.

of the upper sashis a plate 21 having a plurality of; apertures 22 spaced apart and into one of-which the inner end of the bolt 17 'enters when the lower sash is elevated or the upper sash lowered. The plate 21 is secured to the stile member 13 by'screws or other suitable fastening devices 23. The plate 21 is so located that the bolt 17 entersthe lowermost aperture 22 when the two sashes are in closed relations or. with their meeting rails 11-12 engaged as shown in Fig. 1. By this arrangement it will be obvious that the sashes may be locked either in closed or partly opened relations by simply moving person. The apertures 22 maybe spaced any suitablgu'edlstance apart and any requlred .nu rfof apertures may be emloyed, l generally. the apertures Wlll be spaced about one inch apart, but this.

distance may be varied as required.

Ata'its inner end thehorizontal 17 "to employ the pine except to hold rotated by the fingers of the operator.

to be hereafter explained.

is provided with a threaded eye 24, the eye beingso arranged that it presents its opening vertically when the pin 20 is rotated to cause it to enter the short slot 19 the object Connected to the frame 10 between the outside stop 15 and the easing-25 is a block 26, the outer face of the block being preferably flush with the outer face of the stop 15. Connected to the block 26 by screws or other suitable fastening devices 27, is a plate 28 having spaced ears 2930, the ears having threaded apertures therethrough.

.Fitting through the threaded apertures of the ears 29-3() is a threaded bolt 31, and engaging over the bolt between the ears 29-30 is a lock nut 32, preferably with a milled outer surface'to enable the nut to be freely The plate 28 with its ears 2930 will be so located upon the block that when the horizontal bolt 17 is disposed in its inward position,'

or with its inner end engaged in one of the apertures 22 of the plate 21, the lower end of the bolt 31 will be threaded through the threaded aperture of the eye 24 of the terminal to engage the eye 24 and thus lock the bolt 17 firmly in position and effectually prevent its displacement so long as the vertical bolt 31 remains in its downward position. After the bolt 31 has been adjusted into locking relations with the bolt 17 the nut 32 .is rotated to clamp the bolt 31 in position and prevent its displacement so long as the nut 32 remains intact. By this simple means" an efficient burglar-proof window fastening attachment is produced, which effectually protects the sash from surreptitious movement from the outside. As before stated the plate 21 will be somewhat limited in its length as it is not desired to employ the locki. g device to hold the sash except when they are opened a comparatively short distance, or distances so shortas to prevent the passage of a burglar or other person, while at the same time permitting ample ventilation both above and below the sash.

The improved device is simple in construction, can be readily applied and operates effectually for the purposes described.

What I claim is:

1. A horizontal bolt havingan eye at one end and adapted to be movably connected 'to a lower sash, a plate provided with a plurality of apertures and adapted to be connected to an upper sash in position for the apertures to he engaged one at a time with the horizontal bolt, and a bolt mounted for vertical movement in position to be engaged with the eye of the horizontal bolt.

2. A horizontal bolt having a threaded eye at one end and adapted to be movably connected to a lower sash, a plate provided with a pluralityvof apertures and adapted to be connected to an upper sash in position for the apertures to be engaged one at a time with the horizontal bolt, and athreaded bolt mounted for vertical movement in position to be engaged with the threaded eye of the horizontal bolt.

3. A housing adapted to be connected to a lower sash, a plate having a plurality of apertures and adapted to be connected to an upper sash, a horizontal bolt movable in said housing and' adapted to engage the apertures of said plate one at a time, a vertical bolt adapted to be movably connected to a window frame, and means for clamping said vertical bolt to said horizontal bolt.

. 4. A housing adapted to be connected to a lower sash, a plate having a plurality of apertures and adapted to be connected to an upper sash, a horizontal bolt having a threaded eye and movable in said housing and engaging the apertures of said plate one at a time, and a threaded vertical bolt adapted to be movably connected to a window frame and adapted to engage the threaded eye of the horizontal bolt.

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

WILLIAM CUNNINGHAM. a. 5.]

Vitnesscs:

AUGUST T. DALL, GEORGE WOLF.

Copies of this patent may be obtained for five cents each, lay addressing the Commissioner of ratenta,

\ Washington, D. G.

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