Патент USA US2119456код для вставки
Mwßl, 1938. c3- A. DIES DOOR Loox Filed Feb. 10, 1937 2,1 19,456 2,119,456 'atented May 31, 1938 ` UNITED VSTATES PATENT- OFFICE 2,119,456 DOOR LOCK Charles A. Dies, Chicago, Ill. Application February 10, 1937, Serial No. 125,142. s claims. My invention is an improvement in door locks, md- relates to the general class of latches in :ontradistinction to the use of sliding bolts In ing opposite ñanges I3 by which it is attached to the aforementioned plate by studs I4, with screw holes I5 through the-plates for attachment :onnection with ordinary door locks. It is customary to provide the doors of apart of the lock casing to the door as by means of ’screws I6, and within this casing there is slid 5 ably mounted a latch plate I1 _having hook shaped members I8, I8 projecting from one end of the lock casing to engage a keeper plate I9 ments and other dwelling houses, as well as stores, with locking means yin addition to the ordinary mortised lock having a spring-actuated latch and sliding bolt, for further security, and lhaving spaced apart loops 20, 20 with which the lt is Ytherefore the main purpose of my invention » hooks of the latch engage. For guiding the latch plate in the lock casing there is a vertical rib to provide locking means that can be readily ap 2| formed on the plate I0 received in a vertical plied to a door and easily removed so that a temporary occupant of an apartment or dwelling ' groove 22 in said latch plate, and in order that this latch plate may be reversed for application may easily remove the lock and use it on the door of another apartment or dwelling occupied to a door opening either to the left or right it is provided with grooves, 22, at opposite sides by him, although it may be also used as a perma nent attachment to a door. ’ ' A further object of my invention is to provide a removable door lock of comparatively simple thereof. The latch plate has free movement in ' the casing so that it will drop by gravity into engagement with the loops of the keeper plate, construction that will not only dispense with the ~ and therefore it is desirable to have a thick plate for the required weight in operation. use of springs, that 'are liable to get out of or To raise and lower the latch plate it is pro der, but will also include peculiar means for rais ing and lowering the latch plate movable into ' vided with an opening '23 to receive the shank 24 and lug 25 of a turnbutton 26, the shank extend locking position by gravity. , ing through the cover plate I2 and being of such With these principal objects in view my inven tion contemplates the provision of a vertically length as to locate the knob away from the lock casing for manipulation, with a sleeve 21 inter- sliding latch plate enclosed within a casing se cured to the inner side of the doorv and having posed between the knob and lock casing. By` ref erence to the drawing it will be noted that the projecting hook shaped members adapted to en gage loops in a keeper plate, in association with opening in the latch plate is of a particular a turnbutton for manipulating the latch plate shape for the operation of the lug on the turn button; that is to say, the opening is of a width from the inner side of the door, and a remov able key for operating the turnbutton from the vertically to correspond with the length of the lug and cross-section of the shank, and has con outer side of the door, as hereinafter fully- de scribed and specifically set forth in the appended verging curved YWalls or lug engaging surfaces 35 claims. v - ~ In the accompanying drawing:l Figure 1 is a front elevation of a door lock constructed in accordance with my invention. Fig. 2 is a vertical rsectional view o'n the line 2-2 of Fig. 1. Y Fig. '3 is a detail sectional view of the lock on the line 3-3 of Fig;- 2. ’ Fig. 4 is a detail perspective view of the slid ing latch plate. _ Fig. 5 _is_ a detail sectional view of the turnbut ton forming a part of the lock. l i Fig. 6 is an end view of the turnbutton, Fig. 'I is an end view of a turnbutt'on illus trating a modification of the key hole, and Figs. 8 and 9 are detail views of diiïerent forms of keys usable in connection with the lock. In carrying out my invention I employ a two part casing comprising a ñat plate I0, to bear against the door Il, and a housing plate I2 hav 28, V28 extending outwardly >from a straight wall 29 at the opposite side of the lug from said curved walls, with the latch plate conñned to a direct vertical movement by the rib or spline hereinbefore referred to. It is preferable to 40 have straight horizontal walls immediately- above and below the shank and lug between the curved ' walls and vertical wall referred to, so that when the lug is turned upward to raise the latch, or. downward to lower'the latch, the turning of this 45 turnbutton by accidental movement of the latch plate, especially` in the raised positionof the latter, will be prevented, and the lowerstraight horizontal Wall will prevent lifting of the latch plate to unlock the door independently of a man ual operation of the turnbutton, asÍfor instance by an instrument passed through the crack be tween th_e door and jambj As will be obvious, the straight wall 29 limits the throw of the lug 55 2,119,456 ’ to one direction or towards the curved walls with which its outer end engages in the normal opera the flange on the plug engages the inneriend of the collar when a further half turn will lower the latch plate into locked engagement >with the y , keeper plate. The turnbutton provides for operating the slid From the foregoing description, in connection v, able latch plate from the inner side of the door, and it will be noted by reference to Fig. 3 that' l,with the accompanying drawing, it. will be seen tion of the latch plate. when the latch plate is raised as shown in dotted ' that I provide a very simpleform of door lock `,lines, in unlocked position with respect to the - in which the hooks of a vertically movable latch keeper plate, it rests directly on the outer yend plate engage loops of'a keeper plate onrthe door of the vlug so as to be firmly supported thereby, and to lock the door the turnbutton is given a half turn clockwise so as to release the latch jamb to securely fasten or lock the door closed, and that to unlock the door from the inner side plate and permit it to drop by gravitation, the lug then being in the position shown in full lines to prevent raising said latch plate in .any other manner than by means of the turnbutton. plate, while from the outer side of the- door it To operate the turnbutton or lug from 'the outer side of the door itis only necessary to pro vide the inner end of the shank with means for the engagement of a key that will act’to manip ulate said turnbutton, as for instance a keyhole, such as illustrated in Figs. 6 and 7, may be formed directly in the end of the shank, and either astraight key, 30 (Fig. 9), or a key hav ing a flexible shaft 3| (Fig. 8) ,` used in connec tion therewith. When a key with a flexible in termediate portion or shaft is used the opening through the door for the insertion of the key to engage the turnbutton is serpentine, as shown in Fig. 2, thus requiring a key oi’ this kind to be used in the operation of the lock. ToI provide a serpentinepassagewayfor the flexible key I employ a bent tube 32,» and for convenience 'in applying this tube to the door it is Welded in a cylindrical bushing 33 inserted in a correspond as ing opening through the door and held in place from being withdrawn from the outer side of said doorvby a circumferential flange ~34 at its inner end. By this arrangement it is only neces 40 sary to drill a straight hole through the door to receive the bushing and countersink the inner end of the hole to receive the flange so that the lock casing will retain'the bushing inplace, the usual escutcheon 35 being secured at _the outer the turnbutton is manipulated to liftthe latch will require a key to operate the turnbutton, ‘the locking of the door from the inner or outer side thereofbeing accomplished in- like manner to lower the» latch plate. In either position of the latch plate it is firmly held by the lug project ing in a vertical plane from the shank of the turnbutton. Although the weight of the latch plate will cause it to be lowered by gravity lt will be noted that this operation is also eifected by the lug of the turnbutton engaging the lower curved „wall of the opening in said latch plate, and in locking the door the turnbutton should be operated for the positioning of the lug verti cally to prevent lifting of the latch plate by way of the projecting hooks. In other words, when a door is locked by means of my improved slid able latch plate and turnbutton it can be un locked only by the operation of the turnbutton,>_ and by providing the serpentine passageway for the key there is additional security against any one breaking into the building, for this will not . only require the use of a flexible key but the winding passageway obscures sight of the key hole. Furthermore, any attempt to open the door by one unfamiliar with the operation of the lock would be met by the peculiar key en gaging means associated with the turnbutton requiring several turns of the key, thus serving to confuse the person making the attempt. The lock may be used as a fastening means lh addition to the ordinary mort'ised lock, or as the side of the door to cover the outer end-of the ` only means for locking av door, swinging window, or other movable part of a building or other _. Instead of operating the turnbutton by the structure. bushing. simple means of a keyhole in the end of the shank of said turnbutton I prefer to provide the - shank with a turnable member requiring several turns of the key before positive operative en vI claimz- . 1. A door lock comprising a casing, a vertical This arrangement is spline on one of the plates thereof, a latch plate slidable vertically in the casing and having ver tical grooves in opposite sides thereof cooperat illustrated in Fig. 5 of the drawing in which the ing with- the spline for adapting said latch plate ' gagement of the parts. shank 36 of the turnbutton is recessed at its ` to be reversed in the casing to accommodate 55 inner end vto receive' an internally threaded col lar 31 fixed therein to terminate a short distance from the inner end of the recess, and in con nection with this collar there is a' turnable plug doors opening to the right or left, hook-shaped members4 projecting from the latch plate beyond the casing for engagement with a keeper plate, an opening in the center of the latch plate, and 38 having a keyhole 39 at its outer end and a a turnable element having a lug working in the peripheral flange 40 at its inner end, the latter opening to engageA the yupper and lower edgesy of ‘said opening for raising and lowering the latch plate’ coacting to hold the latter in the _ playing in the space between the collar and inner end of the recess so that several turns of the .V plug will be required before it will abut against the opposite stops for> responsive movement of 'I‘he engaging threads are 65 the turnbutton. pitched so that in lifting the latch to unlock the door the key is turned clockwise until the turn respective positions thereof. ' 2. A door lock comprising a casing, a latch end of the recess (see 5) when a further 70 half- turn of the key and plug will cause the lug to engage the upper wall of the opening in“ the plate slidable vertically in the casing and havingmembers projecting therefrom to engage a keeper plate, an opening through the latch plate pre senting spaced apart upper and lower walls, a turnbutton having a shank extending into the lock casing, a lug projecting from the shank and working in the opening between the aforesaid latch plate and lift the latter to the position upper and lower walls of the latch plate to raise shown in dotted lines in Fig. 3. Likewise, to ' lower the latch plate will require the key to be 75 turned several times counterclockwise or until and lower the same, a recess in the inner end of the lug, a threaded plug turnable in the recess ,.ng of the plugis stopped by abutting the inner for independent longitudinal movement therein,v ` I 2,119,456 keeper plate. un opening throulh the latch plate pprœenänsmœd'spertnppermdlomnlls. movement of _the-llt. '