US1333189A - Lock - Google Patents

Description

L. SHAW.

Locx.

.y APPLICATION FILD M^R|23| 1918- 'I I 1,333,189, Patented Mar.9,1920.

E JQ IE7. 611

INVENTOR 9J 96. JW

ATTORNEY applied to file cabinets and the like for.

UNITED sTATEs PATENT oEEIoE.

J'ON HHSHAW, 0F NEW HAVEN, CONNECTICUT, ASSIGNOR T0 SARGENT & COMPANY, 0F NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT. v i

Lock.,l

Specification of Letters Patent.

` Patented Mar. 9, 1920.

Application led Mfarch 23, 1918. ASerial No. 224,241.

To all whom t may concern:

Be it known that I, JOHN H.- SHAW, of the city and county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Locks, of which rotated from the unlocked to the locked position by grasping the same with the fingers, Without necessitating the use of a key. The invention is illustrated as applied to a record filing cabinet to lock the drawers of the cabinet in their closed position.

One object of the invention is to provide a pin tumbler -lock which is so constructed that the key barrel may be rotated from its unlocked to its locked position without necessitating the use .0f a key.

Another object is to provide a pin tumbler lock which is constructed to permit the key to be removed from the key barrel when the same is turned to its unlocked position, and in which the barrel may be freely rotated to its locked. position after the key has been removed from the same.

Still another object of the invention is to provide a simple and convenient locking means which may be easily and vquickly locking the drawers -of the same in their closed position.

To these and other ends,the invention consists in the novel features and combinations of parts to be hereinafter described andv claimed. f

In the drawin Figure 1 is a fragmentary front view of a file cabinet drawer having my improved lock mounted in the outer face thereof;

Fig. 2 is a fragmentary sectional view through a record filing cabinet, showing in section my improved lock operatively connected to a bolt operating rod having a swinging bolt upon its inner end forlocking the draw in its closed position. The parts of thev locking device are shown in their locked position. v

Fig. 3 is a view similar to lFig. 2, showing the parts of the locking device in their unlocked position.

Fig. 4 isa sectional view taken on line 4 4 of Fig. 1;

Figs. 5, 6 and 7 are sectional views taken on the lines 5-5, 6-6 and 7-.7 respectively, l

looking in the direction of thearrows; and Figs. 8 and 9 are end and side views re-` spectively of details of my locking. device.

In the drawing, I have designated the outer face member of a file drawer or the like by the numeral 10, and the inner end A member of this drawer is designated by the numeral 11.- The type of vfile drawer herein partially shown is usually provided with a bottom such as 12, having a relatively wide slot vformed therein and extending longitudinally of the drawer, in which slot is usually mounted a file-retaining rod adapted to be inserted through a perforated projection formed upon the le cards or card partitions (not shown), but commonly 'used in the drawers of file cabinets. I have designated by the numeral 13 the front strip or brace with which file cabinets are com monly provided, and the rear strip or brace of the cabinet is designatedrby the numeral 13. These front and rear strips serve to support the sliding drawers in their spaced relation one above the other, and also vserve to reinforcethe file cabinet. In the particular cabinet partially shown,- the outer face ofthe cabinet drawer is provided with a" lip or projection 10 which extends below the bottom of the drawer and partially covers the stri 13.

One of the objects of this invention, as above stated, is to provide simple and convenient means for 'locking a lile drawer, such as above briefly described, in its closed position. The means which'I have provided for this purpose consistsof a pin tumbler lock designated in its entirety by the nu-l meral 14 and mounted in the outer face 410 of `the cabinet drawer near vthe lower edge of the drawer. The lock is provided with a key barrel hereinafter more fully described, the inner end of which is rigidly secured to albolt operating rod 15 preferably positioned within the slot above mentioned formed in the drawer bottom 12. Upon the inner. end of the rod 15 is mounted a swinging bolt hereinafter more fully described.

The pin tumbler lock 14 consists of a body portion having oppositev laterally projecting flanges 16 formed upon the outer face of the .16 having threaded drill holes formed therein adapted toy receive securing screws.- 'The body portion of the lock 14 is provided.

with a pin tumbler extension, in which is formed the pin tumbler sockets 17, in which the usual type of pin tumblers are slidably mounted. The lock 14 is preferably mounted upon the outer face of the member 10 by forming sockets in the same, adapted to receive the body portion of the'lock and also athe lugs 16 above mentioned. The lock is member 10 bypreferably secured t0 the screws 18, the heads of which are preferably countersunk in the inner face of the member 10, and the outer ends of these screws are threaded into the lugs 1 6. The body portion of the lock 14 is provided with a bore, in which is rotatably mounted a 4key barrel 19 having pin tumblers 20 slidably mounted therein in the usual manner. The outer end of the key barrel is constructed to extend a short distance beyond the outer face of the lock 14 and preferably hasl an enlarged knurled'head 21 formed thereupon, the object of which will be hereinafter pointed out. The pin tumbler lock .is provided with the usual type of key such as 22, which coperates with the pin tumblers 20 in the usual manner. An important feature of my invention is the construction by which the pin tumblers 20 are permitted to move outwardly a sufficient ldistance to permit the key 22 to be with-A drawn from the key barrel when the same is turned to 1ts unlocked position. This is accomplished by forming a; trough or groove 23 in the bore of the body portion of the lock in which the key barrel rotates, the same belng preferabl formed substantially opposite the pin tumb er extensions 17. This troughor groove 23 permits the pin tumblers 20 to move outwardly a sufficient distance beyond the cylindrical surface-of the key barrel to permit the key to be withdrawn from the same, as shown in Figs. 3 and 7. This outward movement of the pin tumblers 20-,however, doesvnot lock the key barrel against rotation, since the formation of the trough 23 is such that when the key barrel is rotated slightly, the pins 20 are forced into the key barrel byl the inclined walls of the trough 23. The trough preferably does not extend entirely through the body portion of the lock but terminates a short distance from the front face thereof, leaving the web-like portionl 24, as this gives the front face of the' lock 14 a more pleasing appearance and prevents the pin tumblers 20 from being tam-4 v pered with from the outside of. the drawer uponl which the lock is mountedi From the above description, it will be apparent that when the key barrel has been rotated to its unlocked position, as shown in Figs. 3 and 7, 4and when the key 22 has been removed therefrom, the key barrel maybe easily rotatedl to its locked position by simply grasping the knurled head 21 between the fingers and rotating the same without the use of a key.

The bolt operating rod 15 above mentioned ispreferably rigidly secured to the key barrel 19 by means of a sleeve 25. One end of this sleeve preferably has a socket-formed therein, adapted to receive the inwardly projecting end of the key barrel 19, and the sleeve is rigidly secured to this end of the key barrel by a .rivet 26. The other end 0f the sleeve 25 has a reduced bore formed cen-4 trally thereof adapted to receive the outer end of the rod 15 and lis ri 'dly secured thereto by a rivet 27. The en of the sleeve 25, which is secured tothe key barrel 19, preferably has formed thereupon anl outwardly projecting lug 25, which is adapted to contact with opposite shoulders 14 formed the bolt being so positioned that it may be rotated so that its outer end will lie back of thev brace member- 13', as shown in Fig. 2. A washer such'as 29 is preferably provided between the member 11 and the inner face of the swinging bolt 28.

From the above description, when read in connection with the drawing, it will be seen that when it is desired to lock a sliding drawer of a filing cabinet provided with my improved device, allthat is-necessary is to grasp the knurled head21 between the fingers and rotate the key-barrel from the position shown in Fig. 3 to the osition shown in 'Fig 2. This rotation of Vt e key-barrel rotates the rod 15, which is rigidly secured thereto, and swings the bolt .28' from the position shown in Fig. 3 in which it clears the brace 13', to the position shown in Fig.

2, in which the outer end.of the swinging rotated from its unlocked to its locked position without requiring the use of the key 22,

t0 move the pin tumblers 20 to their releasing position. This feature of my invention is important, since Vit permlts the drawers of the Yfiling case tobe locked without the use of a key, but prevents these drawers from being opened by anyone except the person in possession of the key.

Although, in the illustration of my invention, I have shown my improved pin tumbler portion, a key-barrel rotatable therein, pin tumblers slidably mounted in said barrel, said body portion having a clearance space;- formed therein permitting said pin tumblers. Ato move outwardly whereby the key may be` withdrawn from the key-barrel when the latter is turned to its unlocked position, said clearance -space having an inclined vface for moving the pintumblers into said barrelwhen the same is rotated.

2. In a piu tumbler lock, a casing, a keybarrel rotatably mounted therein, pinI tumblers in said key-barrel, means permltting an.

abnormal loutward movement of said tumblers when said barrel Vis turned toits unlocked position Awhereby said key may be removed, and means whereby the rotation of said key-barrel forces said tumblers back to their normal position.

3. In a pin tumbler lock, avcasing, a keybarrel rotatably mounted therein, and pin tumblers in said keybarrel, said casing constructed to permitan abnormal outward movement of said tumblers when said key barrel in turned to its unlocked position, andv said Acasing and key-barrel constructed to coperate to return said tumblers to their norxial position when said key-barrelis rotate v e 4. In a pin tumbler lock, a casing, a key-barrel rotatably mounted therein, and pin tumblers in said key-barrel, said casmg having a clearance space formed to pei'- mit an abnormal outward movement of said tumblers, said casing also constructed to cooperate with said key-barrel to force said tumblers inward when said key-barrel is rotated. Y

` 5. In a pintumbler lock, a casing, a keyv to return said tumblers to their normal posi,- tion when said key-barrel is rotated. f

6. Ina pin tumbler lock, a casing, a keybarrel and pin tumblers in saidkey-barrel,

said 'casing constructed-to permit an abnormal outward movement' of said tumblers when said key-barrel isturned 'to its unable abnormally outward when said key-v barrel is turned to its released position to permit the removal of said key, and means whereby said manualrotation of said lkeybarrel returns said tumblers to their normal position. L v

8. In a pin tumbler lock, a easing, a key barrel and pin tumblers in said key-barrel,

said casing constructed to permit the pin umblers to move outward beyond the surace ofl said barrel, said casing further constructed to dog said pin tumblers back to their normal .position within said barrel when said barrel is rotated.

9. In aA pin tumbler lock, a casing, a keybarreland pin tumblers in said key-barrel, said casing having a recess constructed to permit the 4pin tumblers to be moved outward beyond the surface of said barrel, said recess having a wa'll constructed to dog said pin tumblers back to their normal position within said barrel when the barrel is rotated.

10. In a pin tumbler lock, a casing, a keybarrel, pin tumblers withinfsaid key-barrel and casing to lock the key-barrel against rotation, said casing provided witha clearance space to receive the pin tumblers' within l said key-barrel when the same is turned to its unlocked position, whereby thekeymay be removed from the key-barrel while the barrel, lpin tumblers within said key-barrelV and casing, said casing provided with a clearance space to receive ,the pin tumblers within said key-barrel when the same is turned to its unlocked position, whereby the key may be removed from vits key-barrel while the latter is .in its unlocked position, said key-barrel being rotatable manually without its key from its unlocked to its locked position, and means whereby the rotation of said key-barrel forces said pin tumblers into the same.

12. In a pin tumbler lock, a casing, a.. keybarrel Vrotatable therein, Apintumblers with-l in said key-barrel and l`lcasing, said casing having arounded groove formed in Aits inner wall adjacentsaid key-barrel andyposi'-l tioned tovreceive the pin tumblers within said key-barrel as they are forced outwardly by the removal ofthe -key from its keybarrel, said rounded groove constructed to l force said pin tumblers into said key-barrel as the key'barrel is rotated.

13. In a pin tumbler lock, a casing; a keybarrel rotatable therein, pin tumbler's Within said key-barrel and casing, said key-barrel having a manually engageable head to be grasped to rotate the same, said casing constructed to permit the pin tumblers Within said key-barrel to move outwardly beyond the periphery of the key-barrel when the 10 same is in its unlockedposition, and means whereby the rotation of said key-barrel forces said pin tumblers into the same.

In Witness whereof, I have hereunto set my hand on the 19th day of March, 1918. 15

. JOI-INH. SHAW.

Images