US1110007A - Window-sash lock. - Google Patents

Description

. Patented Sept. 8, 1914.

WlTN ESSES ATTO R N EY NETE STES MARK NOBLE UTNAM, OF VJICHITA, KANSAS.

VINDO'W-SASH LOCK.

Specification of Letters Patent.

Fatented Sept. 8, 1914.

Application mea nay 2o, ieri. serial no. ascesa T0 all whom. it may concern Be it lmown thatI l, their NOBLE PUT- Narr, a citizen of the United States, residing at TWichita, in the county of Sedgwick and State of Kansas, have invented a new and useful lVindow-Sash Lock, of which the following` is a specification.

The invention relates to improvements in window sash locks.

The object of the present invention is to improve the construction of window sash locks and to provide a simple, practical, and inexpensive window sash loclr of strong and durable construction, adapted to be readily applied to a window and capable of locking the sashes either in their closed position or in an open position for ventilation.

A further object of the invention is to provide a window sash lool; of this character, equipped with a pair of bolts, one of the bolts being arranged to lock the upper and lower sashes of a window together, and the other being movable into and outl of en gagement with the window frame or casing, so as to loch the upper and lower sashes rigid with the same.

Another object of the invention is to provide a sash lock adapted to lock the lower sash to the window frame or casing at any point, either open or closed, while permitting an adjustment of the uppersash, and equipped with means for preventing a partial movement of the bolt which engages the window frame or casing, so that it will be necessary to rotate the lrnob of an operating bolt to the right sufliciently to completely shoot the bolt which loclrs the lower sash and engages such bolt with the window frame or casing before the operating bolt can be engaged with the upper sash, thereby avoiding any liability of accidentally leaving the lower sash unlocked.

Vith these and other objects in view the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacri cing any of the advantages of the invention.

In the drawing :-Figure 1 is a front ele-- vation of a window sash lock constructed in accordance with this invention, and shown applied to la window, the window frame or casing and the metallic keeper strip thereof being in section. Fig. 2 is a vertical sectional view talren at right angles to Fig. l. Fig. 3 is a vertical sectional view on the line 3 3 of Fig. 1. Fig. el is a vertical sectional view on the line of Fig. 2. Fig. 5 is a horizontal sectional view. Fig. 6 is a transverse sectional view on the line 6 6 of Fig. 3. Fig. 7 is a detail perspective viev.v of the sliding and rotary operating bolt.

Like numerals of reference designate corresponding' parts in all the figures of the drawing.

ln the` accompanying drawing, in which is illustrated the preferred embodiment of the invention, 1 designates a casing forming a housing for horizontal bolts 2 and 8, and designed to be secured to and mounted upon the lower sash 4l; of a window at the right hand side of the saine. rlhe casing, which may consist of a casting or be constructed in any other desired manner, is secured to the lower sash by vertical screws 5 and a horizontal screw 6, but any other desired arrangement of fastening means may, of course, be employed. lThe vertical screws 5 pierce the casing and are embedded in the top rail of the lower sash, while the horizontal screw passes through a depending lug or ear 7, which fits against the front or inner face of said top rail of the lower' sash. The bolt 3, which is movable laterally of the casing 1, is mounted in a transverse bore 8 thereof, while the other bolt 2 is mounted in a bore 9, which intersects the bore 8, the bolt 2 preferably passing beneath the bolt 3.

The bore S is closed at one end by ya wall 10, which forms a stop for the bolt 8 to limit the inward movement thereof, and the latter has a lower recess 11 at its inner or rear portion. The bolt 3 is provided at the recess with teeth 12 forming a rack and mes iing with a pinion 18, consisting of teeth or ribs extending longitudinally of the operating bolt 2 and permitting a slid` ing movement of the latter without becoming disengaged from the rack of the laterally movable bolt 3. The operating bolt is equipped at its front or outer end with a milled head or knob 141, and it is adapted to be rotated' to reciprocate the laterally movable bolt 3, to engage the same with a keeper strip l and to retract it from such engagement. The keeper strip l5, which is `constructed ot suitable metal, is secured to the side of the window l'rame or casing' 16 in the .gi-ocre or channel provided for the n'lovement of the lower sash, and it is located to one si `e of the vertical transverse plane oit the sash cord, so as not to intertere with the same when the deif'ice is applied to a window h. its sashes balanced by sash weigh The said keeper strip is provided at short intervals with openings l?y forming sockets to be engaged by the laterally niio-yable bolt 33 whereby the lower sash is rigidly loelred to the window trame or casing1 and held against movement in either direction. "lfhe pinion i3 is de signed to be of a site so that a complete revolution of the operating; bolt will produce a itull inoif'ement of the bolt 3, either to shoot or reciprocate the same.

The inner or rear portion ot the operating` bolt is arranged in a rear bore or openingv 18, and the said bolt is slidable inwardly and outwardly to engage its rear end with and disengage it from a leeper strip i9, secured to the inner or front lace ot the right hand side bar or stile ot the upper sash of the window. The lreeper strip 19, which is provided at intervals with socket openings 2l to receive the operating bolt, may be oll any desired length to se cure the requisite adjustment of the upper sash. ln orde to prevent the operating bolt from being reciproeated when the laterally movable bolt is in an intermediate position7 the said operatingl bolt is provided near its inner or rear end with an annular groove 22 in which operates a l'iXed projec tion 23, Drelierably 'formed by a pin piercing' the top of `the casing and ei'ending into the portion 22 et the bore which receives the operating bolt. The operating bolt is provided with a eut away portion 25 forming a Vflat tace and located at the said projection when the laterally movable bolt is at the limit ot its moyement in an outward direction. The cut away portion Q5 ot the operatingl bolt 2 permits the latter to be moved inwardly or rearwardly into engagement with the keeper strip of the upper sash, as illustrated in Fig. 3 of the drawings. its the opermting,- bolt 2 must make a complete revolution in one direction to turn the eut away portion to a position opposite the projection it will be impossible to slide the operating bolt 2 until the said laterally movable bolt 3 has been completely moved to its engagine' position into the keeper strip l5.

When the bolts are in the position illus trated in Fig'. ott the drawing, the oper ating` bolt, after the lower has been adjusted to the desired position, is rotated to the right to carry the laterally movable or cL` ng. 'lfhe upper sash is then tree to more and may7 alter adjustment., be locked to the lower sash and to the window trame or casing by sliding` the operating bolt 2 rearwardly and engaging the same with one oit the soclret openings 2l olf the said upper s The lower sash must be first locked to the window frame or casinsoT before lool-ing` the upper and lower sashes together, thereby insuring the locking oit the lower sash at all times at the desired point, as it is necessary to rotate the knob let to the riejht and Atorce the bolt tl into engagement th the keeper strip l5 before the bolt 2 an be pushed rearwardly into engagement with the lreeoer strip il) ol the upper sash. t will be impossible to manipulate the sash .ook from the exterior by means of a knife, wire, or other instrument, and surreptitiously open a window, whether the sashes be closed, or partly open for ventilation. 'lfhe position of the sash lock at the right hand side oit the window enables it to be manipulated with the right hand while adjusting; the sashes with. the left hand, and as it is springless and comprises in its construction only two working parts, it presents a. strong',` and durable constructiom and is not liable to get out of order.

The device is applicable to various kinds ot windows7 whether equipped with sash weights or not, and instead ot providing lreeper strips, as shown in the drawing, separate rings or socket pieces may be mounted the upper sash and on the window trame or easing' in position to be engaged by the bolts o1 the sash lock.

lllhat is claimed is l. A s; sh loci; comprising` a casing having` horizontal bores or openings intersee'ting,- each other, a laterally movable slidable bolt nounted in one of the bores or openings and provided with a raolr, an operatingbolt mounted for slidingand rotary movement in the other bore and provided with a, pin ion meshing with the raclr of the laterally movable bolt, and a lined projection engaging w'th the operating` bolt to lool; the same against sliding.;` movement while the same is beingI rotated to actuate the laterally movable bolt, said operating bolt having a out away portion eng/aging the said projection and permitting a sliding; movement of the operating; bolt when the laterally movable bolt is at 'he limit oli its movement in an outward direction,

2. it sash loolr comprising a casing havbores or openings intersecting' each other. a laterally movable slidable bolt moi ed in one ot the bores or openings and provided with a rack7 an opi-Eatingbolt mounted tor sliding and rotary movement in the other bore or opening and provided with a pinion meshing with the rack of the laterally movable bolt, and means ooacting With the operating bolt for locking the same against sliding movement until the said operating bolt, through its rotation, has carried the laterally movable bolt Completely to the engaging position thereof, said means permitting a sliding movement of the operating bolt when the laterally movable bolt is in the said engaging position.

3. A sash lock comprising a casing having bores or openings intersecting each other, a laterally movable slidable bolt mounted in one of the bores or openings and provided with a rack, an operating bolt mounted for sliding and rotary movement in the other bore or opening and provided with a pinion meshing With the laterally movable bolt, and means Coacting With the operating bolt for looking the same against sliding movement While it is being rotated to aotuate the laterally movable bolt.

In testimony that I claim the foregoing as my own, I have hereto aiiixed my signature in the presence of two Witnesses.

MARK NOBLE IUTNAM. wWitnesses:

F. O. DoRT, Jos. B. I-IEssE.

Copies of this paient may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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