US1072099A - Sash-lock. - Google Patents

Description

L. E. DE NBERGAARD.

SASH LOGK. APPLxcATIoN rum Humo, 1912.

Patented Sept. 2, 1913.

INVENTOR Lewis Ebner de Maergnard TTTED STATES PATEN T FFTCE?.

LEWIS ELMER DE NEERG-AAR-D, OF PORT CHESTER, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO TECHNOLOGY SALES CO., INC., OF NEW YORK, N. Y.

SASH-LOCK.

Specification of Letters Patent.

Patented Sept. 2, 1911.3.

Application led February 10, 1912. Serial No. 676,916.

To all whom it may concern Be it known that I, Lnwis Emma Dn Nifinnoaann, a citizen of the United States, residing' in the city of Port Chester', county of Westchester, and State of New York, have invented certain new and useful Improvements in SasliLocl s, of which the fol lowing is a full, clear, and exact description, reference beinghad to the accompanying' drawings, forming` part of this specification.7

This invention relates to improvements in sash locks, and particularly to that class of sash locks comprising` two members slidahly connected to each other adapted to clamp the device between the outer sash and the frame molding of a window so as to secure the sashes in position; and its main object is to provide a sash lock of the kind mentioned having means for fastening,` the same to the inner sash of a window in order to prevent its removal.

A further object of this invention is to provide a sash lock of an improved and novel construction, attractive in design, and having simple and inexpensive operating means capable of ciliectuall'y locking the de vice in position.

A still further object is to provide an improved sash lock comprising two oppositely moving members slidably connected t'o each other, capable of clamping the device between the frame molding and the outer sash of a window, having` means for attaching,r the same to the inner' sash in such a manner as to allow a free operation of the two moving' parts.

Another object of this invention is to provide a sash lock comprising` two oppositely moving' member.; adapted to clamp the device between the frame molding' and the outer' sash of a window, having sei-rations in two opposite senses effectively locking the sash against .movement in both direc tions.

A still additional object of this invention is to provide in a sash lock of the kind mentioned, simple and inexpensive means for adjusting` the device to any size window.

l/Vith these and other objects in view such as will more fully appear as the description proceeds, this invention consists in certain ctmstrnctions and arrangements of parts such as will be hereinafter fully described and claimed in the appended claims.

Sash locks having means for clamping the outer sash of a window against the .frame moldingl have been heretofore made, the main object of these devices being to insure a window from being opened from the outside; for this re: son they are generally called safety locks. One inconvenience that I have however noted in some of said devices, is that no means are provided for securing the same to any part of the window. Another inconvenience which .I have noticed in sash locks is that the same are generally operated by a separate key which may be easily lost or misplaced. Moreover, I have noted that such devices are usually provided with st n'ratons in one sense only which do eltcctnally prevent: the motion of the sash in one direction, but which do not give the same safety against movement of the sash iin an opposite direction. A device of this kind must necessarily be strongl o1' in other words exert. strong clampinaction against the sash, especially when the same is used for safety purposes; and in the devices which have come to my knowledge7 such clamping' action is exerted by means of an adjusting' screw mounted on one of the members and controlling` the other member. TVhile the clamping action due to the screw is usually very effective, the appearance of the device is rather unsightly and the cost ot' the same is necessarily higher than that of correspondintt)y devices7 in, which sheet metal parts produced by means of dies are employed.

My improved device may be made entirely of sheet metal and in the drawings il have shown several forms in which the same may be made.

ReferringI to said drawimrs` l `ifnre Il is a 9 front view in elevation of my improved device made adj ustable to any size window; Fig'. 2 is a side sectional view in elevation of the same; Fig. 3 is a plan sectional view of the same; 111g. ll is a detail side view -in elevation of the clamping surface adapted to rest against the outer sash ot' a window; Fig'. 5 is a side view in elevation showing' the serrated l'lange adapted to rest against the frame molding; Fin'. G is a front view in elevation of the bearing' member used in the device shown in Fig. l; Fig. is a front view in elevation on a smaller scale of the adjustable member used in the same; n te'. 8 is a front view in elevation of a cnn shaped vice shown in Fig. 1;

Qi Y '1,072,099

member having outwardly directed flanges attached to the operating member of the deof the same; Fig. 10 is a front view in elevation of the. locking member' used in the device shown in Fig. 1; Fig. 11 is a side view in elevation of the same; Fig. 12 is a plan view of the same; Fig. 13 is a front view in elevation of a simplified form which may be assumed by my device; Fig. 14 is a sioe sectional view in elevation of the same; Fig. 15 is a front view in elevation of a device having different clamping means rendered adapted to be attached to the inner sash of a window, according to one of the details of my invention; Fig. 16 is a plan sectional view of the same; Fig. 17 is a plan view of a key or wrench which may be used in connection with the operating member shown in full lines in Fig. 1; Fig. 1S is a side view of the same; Fig. 19 is a front view in elevation of a device similar to that illustrated in Fig. 13, fitted with only one serrated flange resting against the outer sash of a window; and Fig. 20 is a plan sectional view of the same.

My device is essentially composed of a bearing member 21 to which is slidably connected an adjustable member 22, controlled by an operating member 23 mounted on said bearing member 21. Part 22 may be slidably connected to part 21 in any convenient manner, and the drawings show a preferred form of construction in which part 22 is retained by part 21 by means of an upper flange 24 and lower flanges 25, 2G bent over the same.

Bearing member 21 is provided with a flange 27 adapted to rest against the frame molding of a window, and adjustable member 22 is provided with a narrower liange 28 adapted to rest against the outer sash. Said flanges are provided with serrations 29, 30, in opposite senses, adapted to lock the device in opposite directions and to prevent the moving of the sash both up and down. One of the said slidable members and preferably the inner member or bearing member 21, is provided with a right angle lug or projection 31, having a longitudinal elongated slot 32; said slot is used for the passage of a screw 33 retaining the device attached to the inner sash of a window. The drawings show lug or projection 31 at the lower part of the device, the same being intended for the usual style of window in which the inner sash normally occupies the lower section of the same; by means of lug or propection 31, the device can therefore be attached to the top rail of said inner sash, as illustrated in Fig. 1.

The opening for the passage of the screw is preferably made elongated as shown, to allow the device to be slightly moved by hand when released from its clamping posi- Fig. 9 is a plan viewk tion, so as to detach both flanges from the respective surfaces formerly clamped and to permit the free motion of the window sashes. Screw' 33 can be provided with a shoulder a certain depth, and preventing the head of the same 35 from clamping projection 31'; the distance between shoulder 34 and the lower face of head 35 willbe a trifle more than the thickness of said lug or projection 31, allowing the same to be moved by hand, but at the same time retaining the same in position. 'n l To effect the locking` of the devices, I provide a cam-slotted member 23 having a slot 36, and pivoted at 37 to bearing member 21. Adjustable member 22 is provided with a projecting pin 33 passing through said slot; and it can be easily seen that by turning member 23 around pivot- 37, slot 36 acting on pin 38 will cause adjustable member 22 to move in or out in relation to bearing member 21.

1n Fig. 1, the device is shown in its eX-y tended position; by turning member 23 to the left, member 22 will be moved inward and the clamping action of the devieerreleased. By properly shaping slot 3G the grip of this lock can be caused to be most powerful, and quite sufficient for all the re- Y Member 23 quirements of such a device.

attached can be operated by means of an handle. as shown in dotted lines in FiO'. 1`

by numeral 39, Or else may a detached Yhandle of any suitable description. Y Such a construction is also shown in full lines in Fig. 1 in which member 23 is formed in the shape of a disk provided with notches 40, into which can be inserted prongs 4.11 of an operating key l2 represented in Figs. 17, 1S. As hereinbefore and designated be operated by stated, it is most important that a device of this kind be fitted with retaining means to prevent its easy removal. While the slotted z rio y lug or projection 31 described serves its purpose quite well, and while the device can lock the window sashes in any position, the relative motion which may take place between the lower sash and the device due to the elongated form of slot 32, does not eiliciently prevent the lower sash when the wind is blowing. have found that in such a device it is very desirable that means be alsoprovided for preventing the rattling of the window, this constituting an at ditional advantage and removing the cause of much annoyance.

1n Fig. 5, I show a way of attaching the device, also preventing the rattling of the lower sash due to the wind when the device is in its clamping position. To this end the device is attached to the lower sash by means of a screw 43 having a threaded projecting portion all: and a locking nut 45. Said nut t5 can 3a allowing the same to go only yto from rattling` be operated by hand and by tightening the same when the device has been clamped in position, the lower sash will also be effectively locked to said device and any motion of the same prevented. In a sash lock of moderate dimensions, such as would be adapted for this kind of an article, the adjustment due to a slot of the shape shown in the figures cannot be very high if the lock is expected to exert a strong clamping action; and therefore when it is desired to have a device which shall be adaptable for every size window, it will be necessary t0 provide an extension adjustment, one form of which is also illustrated in connection with Figs. 1, 2, and 3, and the details of which are further illustrated in Figs. G, 7, 8, 9, 10, 11 and 12. This extension consists, briefly, of means for fixing' pivot 37 on bearing member 21 at different points, the motion of part 22 due to slot 36 remaining` the same in all cases.

lVhen my device is provided with my improved extension adjustment, part 21 is formed with a central longitudinal slot 4G, and pivot 37 is riveted or otherwise fixed to a cup shaped member 47 having outwardly directed flanges 48, 49, 50, 51, the height of which is equal to the height of slot 4G, and which is therefore slidable therein. The depth of cup shaped member 47 is such that when the different parts are assembled together, a free space is left between flanges 4S, 49, 50, 51, and the rear surface of member 21, su'tlicient for the passage of the locking member 52 represented in detail in Figs. 10, 11 and 12. Said locking member 52 is provided with lugs 53 projecting from its face and adapted to enter slots 54 provided at various points in member 21. Said locking member' 52 is notched so as to conform to the outline of member 47; the same can be placed against the rear surface of part 2l, lugs 53 entering the respective slots 54, in such a manner that the inward projections 55 of said locking member will pass through free spaces 5G, 57, respectively between flanges 4S, 49, and flanges 50, 51. Slots 54 are much longer than lugs and allow the up and down mot-ion of locking member 52; thereit'ore when locking member 52 has been placed against the rear surface of part 21, the same is pushed downwardly so that lugs 55 will interlock with flanges 49, 51, and lugs 58 will interlock with flanges 48, 50. In this manner locking` member 52 will be retained against the rear surface of part 21 by said flanges, while on the other hand, lugs 53 being inserted through slots 54, said locking member 52 will prevent any longitudinal motion of member 47 and will consequently fix in position pivot 37. By properly selecting the slots into which lugs are inserted, pivot 37 can be fixed at the desired point to conform with the sides of the window for which the device is intended.

To effectively lock member 47 by meansof member 52, l prefer to make the size of part 47 taper, and accordingly to make taper the sides of the notch registering therewith pro vided in locking member 52. This will wedge itself in position and maintain the devices assembled in a more effective way. This type of adjustable locking mechanism is particularly advantageous for the present purposes.

Figs. 13 and 14 represent a simplified form of my device in which 59 is an adjusting member, (3() an adjustable member, (31 is a cam-acting member provided with a slot (32 and an operating handle (S-l, and (i4 is a pivot for the same mounted on member 59. The range of adjustment of this lock is limited to the amount obtainable by means of the slot, but in manufacturing the same, pivot (34 can be mounted or riveted on member 59 at suitably different points, so that by using the same parts locks adapted for use in different size windows can be made simply by assen'ibling them in different relative positions. ln Fig. 13, (55 represents a hole which can be produced in part 59 in order to rivet pivot (i4 in the same, instead of being riveted in the position shown, in order to produce a smaller size lock. A lock thus assembled is only suitable for the size of window for which the same has been designed, but its lower cost of manufacture makes the same well adapted for general use.

ln Figs. 19 and 20, I illustrate .i lock quite similar in construction to that shown in Figs. 13 and 14, but the bearingl member of which GG, has no clamping flange, and in which adjustable member (37 only is fitted with a serrated flange (3S exerting a clamping action against the outer sash of the window to which t-he device is applied. Bearing member GG is fixed to the inner sash by means of a screw or screws G9, inserted through the lug or projection 70. lVhen this style of lock is properly proportioned and sutlieiently strong, its action quite effective both in insuring the safety of a window and in preai'enting the rattling of the same, because while llange (i8 pushes the outer sash against the outer frame molding', the inner sash will be pushed by the retaining screw or screws against the inner frame n'iolding; thc locking of the window will in other words be ell'ected by forcing the two sashes apart. lt may be noted however, that if proper care is exerted in placing the device tilted with a lock with an elongated slot, such as illustrated in l1`igs. 3 and 1G, the same can also effectively prew vent the rattling of the inner sash without the necessity of any additional locking nut, such as shown in Fig. 5. ln fact, it will be sufficient to first extend the device in its clamping position and then to drive the repossible to the end taining screw vthrough the slot `as near as of said slot which remains toward the outer sash.; the end of said slot therefore by acting against the retaining' die produced sheet metal parts; and I also have avoided as much as possible the use of parts projecting from the surface of the device Awhich would render the same, less attractive in design and appearance. j

The slotted member controlling toe sliding `relative motion of the two parts of which my device is composed, can be made with a detached handle or with a handle integral therewith as desired; and the slot provided in the -samemay loe-.caused -to follow any suitable curve which will fulfil the requirements of `the device.

lt is to be understood be .modified in its various substantially departing from that my device can details without the spiritoi my invention and l reserve myself the rightv to the same all those changes and modifications which may be rendered necessary yor useful, to meet Special requirements of individual cases, zand which fairly enter intothe scope of the appended claims.

Having thus described and ascertained the nature of my invention what I claim as new and desire to secure by Letters Patent of the United States is:

l. ln a sash lock, the combination of two plates slid ably connected to each other having serrated flanges, means for yoperating the same, and a lug projecting from one of the said plates for movably attaching the device to the inner sash :of a window; for the purposes as set forth.

2. in a sash lock, the combination of two plates slidably connected to each other having serrated flanges, means for operating the same, and an attaching lug inte-gral with one of the said plates having an elongated slot; izo-r the purposes a-s set forth.

.3. ln a sash lock, the combination of a bearing plate, an adjustable plate slidably connected thereto, a cam-acting member pivotally erating said adjustable plate, and means depending from one j-ustably securing the same to the innersash of the window to which the device is applied.

Ll. In a sash lock the combination of a bearing plate, an adjust-able plate slidably connected thereto, flang'esintegral with Vsaid plates provided with oppositely engaging serrations, a cam-acting member pivotally of bringing connected to said Vbearing plate op-` of the said plates for adconnected to saidbearing plate operating said 'adjustable' plate, and means depending from vone of the said plates yfor securing the same to the inner sash of the window to which the dev-ice .is applied. Y

ina sash lock, the combination of a bearing plate, an adjustable plate mounted upon and slidabl! vconnected thereto, flanges integral with said platesprovided with. oppositely lengaging" serrations,a .slotted camacting member pivotally connected to said bea-ring plate, a member projecting from the surf-ace of said adjustable plate through said slotted cam-acting member and controlled `thereby fc-roperating said .plate, and an .attaching lug integral with .one of the said plates, having an elongated slot; for the purposes as set forth. y

6. ln a sash lock, in combination with a beari-n-g member, .an adjustable member slidably connected thereto, ,and .means for operating the same, means for securing said operating means 'on said bearing member at different .point-s comprising an element hav-ing outwardly directed flanges projecting through said 'bearing member, and a locking element .inserted between said flanges .and said bearing member, interlocking with said member; for the purposes as set forth. q Y y Y 7. ln a sash lock, the Acombination of 'a bearing .plate :provided with a 'longitudinal slot and with :a plurality of transverse positioning slots, an adjustable plate slidably connected thereto, serra-ted vflanges integral with said plates, an element having outwardly directed ia-nges projecting through said longitudinal slot, .a cam-acting member pivotally connected to said element l0perating said adjustable plate, and a locking element 4inserted between said yflanges and bearing plate, having lug-s projecting through said positioning slots; for the purposes as set forth.

8. n a 'sash lock, the combination ot a bearing plate, provided with a longitudinal slo-t and with a plurality of transverse positisoning connected thereto, serrated flanges integral with said plates, loperating means for said plates, an element means projecting through said longitudinal slot having outwardly directed flanges and tapering sides', .and a locking ele-ment inserted between `said flanges and said bearing plate, having lugs projecting through Vsaid positioning slots, andjprovided with a slot having correspondingly tapering sides.

9. ln a sasl loclr, the combination of a bearing vplate provided with a longitudinal slot and with a plurality .ot .transverse positioning slots, an adjustable plate slidably connectedthereto, flanges integral wit-h said plates having oppositely engaging serratlons, an element projecting through said slots, an adjustable plate slidably .carrying said operating Vlelilgtudnal slot having outwardly directed Ilanges, a slotted earn-acting' member pivorally mounted on the same, a .member projecting from the surface of said adjustable plate tl'ueug'h said slotted cam-acting mem ber and controlled thereby, a lug integral with one of the said plates having an eleng'ated slet, and a locking member inserted between said flanges and said bearing.;4 plate, having lugs projecting' through said pos- 10 tening slots; substantially as described, and for ihe purposes as set forth.

LEWIS ELMER DE NEERGAARD. Witnesses:

ANNA Annnorr, S1 GM UN n NEWMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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