US1754396A - Door lock - Google Patents

Description

April 15, 1930,." c. P. NELS ON 1,754,396

DOOR LOCK Filed May 6, 1929 2 Sheets-Shet 1 A @AA .5

Inventor C'ar/ Mm A iiorney April 1-5, 1930.

C. P. NELSON DOOR LOCK Filed Ma 6, 1929 Z-Sheets-Sheet In vent or 641 E Wa /8'0 A iidmey Patented Apr, 15, 1930 PATENT orrlcr.

l CARL :eE'rERNELsoN, on FIRTH, IDAHO noon LOCK Application filed May 6,

.Thisinvention relates to door locks and is of the door and moreover provides for an independent locking means on the exterior of the door to prevent unauthorized use of the lock. it a V i i i Furtherobjects of the invention are to provide a lockof the character referred to, which is extremely simple in its method of assembly, thoroughly reliable in its operation, adaptable to all standard doors, strong, compact and durable, and comparativelyinexpensive to manufacture and install.

WVith the foregoing and other objects in view,the invention consists in the novel construction, combination, and arrangement of parts aswill be hereinafter more specifically described and illustrated in the accompanying drawings wherein is disclosed an embodiment of the invention, but it is to be understood that changes, variations and modifications may be resorted to, without depart- ;ing from the spirit of the claims hereunto appended. a V p In the drawings, wherein like reference characters denote corresponding 3 parts throughout the several views: a i

I Figure 11 is an inner side elevation of a sliding door and jamb, showing the device in door and jamb, showing an end view of the lock assembled thereon.

Referring to the drawings in detail, 5 indicates a sliding door and particularly the inner face thereof, while 6 indicates a j amb on the door frame.

The numeral 7 indicates a flat substantially rectangular plate secured by hold-fast devices 8 at the four corners thereof to the doors 5. Extending across the plate inter- 1929. Serial No. 360,741.

mediate the ends thereofis a yoke shaped guide strap 9 securedat its opposite ends to the marginal edges of the plate 7 by a pair of stove bolts 10, 11, and the nuts 12, 18 secured on the inner ends of the bolts 10,11, which are countersunk below the inner face of the door 5. The bight portion of the strap 9 is at a plane parallel to the outer face of the plate and. the legs 14, l5,thereof have the edges in abutment with the upper, face of the plate, thereby providing a spaced guideway 16 between the bight and the outer face of the plate 7. A combined latch and handle is indicated generally at 17, and is formed of a strap of metal formedin open rectangular configuration having an extension 18 at one end and inwardly projecting bar 19 at its other end extending through the plate 7. The threaded arm 19 is connected to the underface of the plate 7 by means of anut 2O counter-sunk in the innerfaceof the door .5. j The inner side 21 of the combination handle and latch member 17 is slidablyconfined within the guide 15 and is rockably mounted on the plate? by means of the projecting arm 19. j

. A forked spring 22 is mounted on the outer face of the plateT, having one leg 23 within the guide 16 by having the inner end thereof wrapped around thebolt 11 as at 2iand the end of the other leg 25 is movably confined within the guide 16 in abutting relation to one edge of the inner side2l ofthe combined handle and latch member .17, whereby the member 17 is normally projected downwardly against the action of the spring. Since an .operatingrod26 extends through the door 5, the plate 7 and the inner end thereofextend through the guide strap 9 whereupon the operating rod ls rotatable therein. The outer end" 27 ofthe. operating rod projects out-q wardl y from the outer face of thedoor and is threaded to receive a pair of nuts 28, 29, 'between which is secured rigidly to therod 26, an extension 30 projecting inwardly from the LIN-shaped handle 31. 1 v a The other leg 32 or the handle'adjacent the lower end thereofis provided with an opening 33,for the purpose presentlyto be mentioned. The operating rod 26 extends through an op ing in one end. f the ha p,

. p .in the guide, a forkeds rin secured to the pie 34, which is rigidly secured to the door 5 by meansof a bolt 35 adjacent the other end thereof, and the hasp is formed with a right angled outwardly projecting arm 36, having 5 an opening 37 which registers with the opening 33, to receive a padlock 38, which when in locked relation prevents the movement of the handle 31 with respect to the hasp 34.

Rigidly connected to the operating rod 26 by welding or other well .known means is a cam arm 39, mounted in the guideway 16. The ed e of the cam arm 39 abuts against the edge 0 the side 21 opposed to the spring leg 25, whereby the operation of the rod 26, by the handle 31', will move the member 17 against the action of the spring leg 25.

In the application of the device to the sliding door as shown in Figures 1 and 2, the keeper member indicated generally at i0 is I mounted directly on the door 'j'amb 6 in a alone parallel to the sliding movement of the 00: 5, whereas in Figures 3 and 4 with the keeper indicated generally at 40, the same is attached to swinging doors, and the keeper is dis at ri t angles to its position for 51' doors. he keeperis the same whether had or slidin or swinging doors and consists of a flat-plate 41, having an outwardly jecting arm 42 and an outwardly inclinmg extension 43 formed on the end of the arm. The keeper plate 41 is secured to the enter face-of the door j amb 6 for sliding doors illustrated in Figures 1 and 2, by means of ms 44 and 45', but when used for swingin; doors, as illustrated in Figures 3 and 4,

the keeper is secured by the same means to a block 6' on the door jamb. When the exten: sion 1'8 strikes the extension 43 on the keeper, the combination latch and handle rides upwardly on the same and seats itself between the keeper-plate 41 and the arms 42. To detech the extension 18 from the keeper 40, either the handle 31 on the outside orthe combined latch and handle 17 on the inside "45 of the door may be turned whereby the extension 18' is moved inan are free of the kee r. An abutment indicated generally at 46 18 secured to the outer face of the plate 7 and prevents the spring 22 from forcing the cam arm 39 be on-d that point. The abutment 46 consists o a threaded bolt 47 extending through the plate 7 and having the head thereof counter-sunk in the door. The nut 48 is threaded on the bolt and is screwed tight "late 7.

at claimed is: a 1. A door lock of the character referred to comprising a flat plate adapted tobe rigidly secured on the inner side of a door, a yoke shaped guide strap mounted on the outer face of the plate, a combined latch and handle rockably mounted on the plate and slida-ble g havingpne la flthereon until it comes into engagement w th i the secured to said plate to limit the movement of said-cam, a hasp adapted to be rigidly secured to the outer side of said door, a second handle rigidly secured to theoperating rod for rotating the latter, and detachable means connected with the hasp and handle for locking the latter against movement.

2. A door lock of the character referred to comprising a fiat plate adapted to be rigidlysecured on the inner s ideof a door, a yoke shaped guide strap mounted on the outer face of the plate, a combined latch and handle rookably mounted on the plate andslidable in the guide, a forked spring having one leg rigidly secured to the plate and the other in abutment with said combined latch and handle, a keeper adapted to be mounted on a door jainb, and having an arm projecting cutwardly for engagement with said combined latch and handle, an operating rod adapted to extendthrough the door and having its innor end rotatably supported by said plate and guide strap and its outer end terminating exteriorly of the outer face of the door, a cam arm rigidly mounted on said rod between said plate and guide strap and abutting said com bined latch and handle, an abutment rigidly secured to said plate to limit the movement of said cam, a hasp adapted to be rigidly secured to the outer side of said door, a second handle rigidly secured {to the operating rod for rotating the latter, and detachable means connected with the hasp and handle for locking the latter against movement, said combined latch and handle formed of a continuous rim having a side thereof slidable between the guide and plate engaging said keeper arm at its outer end, pivoted at its inner end to said plate and forming a gripper at its other side. In testimony whereof I affix my signature.

CARL PETER NELSON.

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