US1606864A - Lock - Google Patents

Description

Nov. 16 1926. 1,606,864

(5. W. ALDEEN LOCK Filed Oct. 26, 1922 Patented Nov 16, 1926.

UNITED STATES! PATENT. rrics.

GEDOR W. ALDEEN, OF ROCKFORD, ILLINOIS, ASSIGNOR T9 NATIONAL LOCK CO., OF

ROCKFQRD, ILLINOIS, A CORPORATION OF ILLINOIS.

LOCK.

Application filed. October 26, 1922. Serial No. 597,090.

This invention relates to locks of the detachable cylinder'type which comprise 2. casing adapted to be inserted in a mortise formed in the edge of a drawer-or the like,

and a detachable cylinder adapted to be inserted from the front of the drawer through a round hole communicating ---w1th the mortise and to be,detachably locked to the casing whereby the casing is held against displacement from the mortise.

In locks of this general type, the key cylinder has been customarily provided with a longitudinally disposedkey receiving slot which serves as the key guide, but since the slot is open at one side there is a tendency, when the c linder is positioned with the open side 0 the slot at the bottom, for the outer end of the key to drop so that it projects from the lock in a downwardly inclined position which is undesirable and unthemselves rotate in the hole bored for their reception and if the hole is not exactly straight, or is not made sufliciently larger than the cylinder, binding between the periphery of the cylinderand the surrounding hole results which interferes with the operation of the lock. Another disadvan tageous feature of such locks is that the key may be inserted and withdrawn in any position of the cylinder and any length of key may be employed, consequently, the liability of opening the lock .with an unauthorized key is rather great.

My resent invention is designed to-overcome t e objections above noted to locks of this characten by providing a lock which comprises a stationary key cylinder which, when attached to the lock case, remains in fixed position instead of turning in the hole. A key guide-is rotatably mounted in this cylinder and is retained therein by an inturned flange at the end of the cylinder which is provided with a slot adapted to align with the key receiving slot of the keyguide when the guide is properly posi-- tioned. A key can, therefore, be inserted in the guide only when the guide is in one predetermined position and when inserted it is held by the surrounding cylinder in a position perpendicular to the lock case and cannot drop or hang in an inclined unsightly position. vFurthermore the slotted flange with which the key cylinder is equipped necessitates the employment of a different artlcle's of furniture. attractive. Furthermore the key cylinders key having a recess at a predetermined position on one edge which will align with and receive this :flange when the key is properly positioned in the lock, thus permitting the the key cylinder to the case and to provide an ejector key for releasing this locking means which, by reason of its construction,

may beemployed for releasing cylinders of difi'erent len ths which may be required in Other objects are to provide a lock which is simple in construction, economical to manufacture, easy to assemble, and one which will'be reliable in operation and not apt to get out of order.

Further objects and advantages of the 1n vention will be readily appreciated as the same becomes better understood by reference to the following description when considered in connection with the accompanying drawings.

Referring to the drawings: Fig. 1 is afront elevation showing my improved lock applied to apiece of furniture;

Fig. 2 is a sectional view on the line 2-2 of Flg. 4;

Fig. 4; is a sectional view on the line 44:

of Fig. 2;

Fig. 5 is a sectional-view through thecas- I ing and cylinder showing the bolt actuating key in operative position;

Fig. 6 is a detail view of the e ector" key; Fig. 7 is a perspectiveview of the key cylinder with the key guide removed; and

. Fi s. 8 and 9 are front and rear views respectively of the lock, the key cylinder bein removed in the front view. 7

Iieferring to the drawings, reference character 7 indicates a drawer front provided with a mortise adapted to receive the lock case 8 and with a hole intersecting said mortise adapted to receive the key cylinder. 9.

The face plate 11 of the lock case is secured to the drawer front by screws 12 and is pro- .vided with anopening'through which the locking bolt 13 may be projected.

The lock case comprises the back wall 14 and side walls 15 preferably formed integrally and a front wall 16 secured to the back wall by a plurality of studs 17 the ends of. which project through the front wall- 16 and are preferably riveted over to hold the parts together.

The locking bolt 13 is provided on one edge with an actuating slot 18 adapted to receive thebit 19 of the bolt actuating key 21 by which the bolt is projected into the locking position shown in Fig. 3 and re-.

tracted into unlocked position as shown in Fig. 2.

Upon the lower ends of the studs 17 there are pivotally mounted the bolt locking tumblers 22 and 23 and the cylinderlocking tumbler 24, all of these tumblers being urged into locking position by springs 25. A detent 26 on the bolt is adapted to be engaged by shoulders 27 on the tumblers 22 and 23 to lock the bolt in projected position and by shoulders 28 on these tumblers which lock the bolt in retracted position. Upon swingmg movement of the tumblers in a clockwise direction, viewingFigs. 2 and 3, they are released from the detent permitting'actuahem of the bolt. It will be observed from F 1g. 5 that the bolt is actuated by engagement of the bit 19 in the slot 18, and that the I bolt locking tumblers are actuated by the surfaces 29 and 31 on the key 21.

The key cylinder 9 is shaped as shown in Figs. 4, 5 and 7 so that the portion aligned wlth the lock tumblers is disposedentirely outside the case and lies against the front wall 16 of the case, Whereas the remaining semi-cylindrical portion enters the case through an arcuate 'slot 32 formed in the wall 16 and is provided with projections 33 which extend through the rear wall 14 of the" case. The uppermost portion of the cylinder projecting within the case is provided wlth a notch 34 adapted to receive the 'extension 35 formed on the cylinder locking tumbler 24 which is also pivoted on the stud 17 and is urged into locking position by one of the springs 25. When the cylinder is introduced into the casing, the inclined edge" 37 j of the cylinder forces the tumbler 24 to the right, viewing Figs. '2 and 4, thus. permitting the full entrance of the cylinder mto the case, whereupon the tumbler snaps into the notch or recess 34v locking the cylinf der against withdrawal -from the case.

Within the cylinder there is meat-1y mounted a key guide 38 comprising the enlarged outer end adapted-to tit-in the groove 39 formednear the outer endpfthe cylinder 9, the metal of the cylinder outsidethe head being bent inwardly to provide a flange 41 which retains the key guide against displacement. The stem 42 of.the key guide is provided with a key receiving slot 43 and its inner end is reduced as indicated at 44 andis adapted to project'through an aperture 45 formed in the rear wall 14 of the case in alignmentywithithe longitudinal axis of the key cylinder. In assembling the lock, the case is first set in .the mortise whereupon the key cylinder is inserted through the hole which intersects vthe mortise, and when fully inserted in the position shown in Figs. 4 and 5, it is locked against withdrawal by the cylinder tumbler 24 and is held against rotation by the projecting prongs 33 while the key guide iscentered and a.bearing is afforded for its rear end by the opening 37 through which it projects.

- he slot 43 of the key guide extends through the enlarged head thereof for. the

proper point between its ends with a recess 47 adapted, when the key is fully inserted as shown in Fig. 5, to register with the cylinder flange 41 to permit rotative movement of *the key for the purpose of releasing the bolt locking tumblers and manipulating the bolt.- Since the key cylinder remains stationary during rotative movements of the key and is firmly supported at opposite ends on-both the front and rear walls of the lock case, it will be apparent that there sno possibility, of binding .or cramping the movements of the key as frequently occurs in; those detachable cylinder locks in which the cylinder itself revolves in the hole in which it is mounted. Furthermore, the

"cylinder prevents the outer end of the key from dropping orsagging when the key re- -mains inthe lock and holds it in horizontal positionso that it'pre'sents a neat appearance. j It should also be noted that the lock cannot be manipulated except with a key which is provided with a recess 47 located at theiproper position on the shank" of the key ,which feature greatly reduces liability of the lock being operated key. v i

by an unauthorized For the, purpose of'releasin'g'the c'yliiider from the case to permiti'ts withdrawal when occasion requires, my invention ,contemplates an ejettor' key designated generally by reference charactdr- 48. The inn r and .cylinder, its edges are provided with recesses 49 and 51 respectively disposed in staggered relation and spaced apart one-eighth of an inch on each edge thereby making the key adaptable to operate the cylinder tumbler of any lock, since the cylinders themselves diiier in lengths by sixteenths of-an inch one from another.

lVhile each lock therefore can be manipulated only by a key cut to fit the same and having its recess 47 disposed at the proper position on the shank of the key, any of the locks of this type can be actuated to release the cylinder and permit its withdrawal by the use of one ejector, key .48, thus making it unnecessary to manufacture a special ejector key for each lock.

It is believed that my invention and many of its attendant advantages will be understood and appreciated from the foregoing,

and while I have shown and described a preferred embodiment of the invention, obviously the details thereo'f may be varied within wide limits without exceeding the scope of the invention as definedin the following claims.

a tumbler for detachably securing said cylinder to said case.

3. In a lock, the combination of a lock case, a key cylinder having one end pro jectin-g into the case and supported atits' outer and inner ends on the frontand rear walls of the case and equipped at its outer end with an inwardly-extending flange provided with a radial slot, a key guide rotatably inounted in said cylinder and provided with'a key receiving. slot adapted to be aligned with said cylinder flange slot "for the reception of a key, and means for. detachably connecting the cylinder the case.

4. In a lock,zin combination, a case, a key cylinder non-rotatably but detachably connected to the case, a tumbler forlocking thecylinderin the case against withdrawal, a key guide" rotatably mounted in the cylinder, and a key adapted to be inserted into the key guide and to be turned for displacing said tumbler for permitting withdrawal of. the cylinder. a

5. In a lock, the combination of a case, a key cylinder projectingthrough'said case at spaced intervals so as. to be held against rotation, a tumbler in such case adapted to engage said cylinder to lock the same against withdrawal from the case, said cylinder being provided at its outer end with an inwardly extending flange having a radially disposed slot, a key guide rotatably mounted in said cylinder and provided with a key receiving'slot ada ted to be aligned with said key cylinder auge slot, and an ejector key provided with recesses on its opposite edges arranged in Tstaggered rela-- tion and adapted to receive said flange on cylinders of various lengths, said key being adapted'upon rotation to release said tumbler thereby permitting withdrawal of the cylinder from said case.

6. In a lock, the combination of a case, having a semi-circular opening in one Wall thereof adapted to receive a. cut-away key cylinder and having spaced openings in the opposite wall thereof to receive projections of said cylinderwhereby the cylinder is held against rotation relatively to the case, a

tumbler in said. case adapted to engage said cylinder and lock the same against withdrawal, a slotted key guide rotatably mounted'in said cylinder, said lock being adapted to be operated by a key of a predetermined lengt ,and an ejectonkey opera-' ble in cylinders of .various lengths, for releasing said cylinder locking tumbler.

7. In alock, in combinatioma lock case, a non-rotatable key cylinder; a locking bolt, and 'a plurality of tumblers concentrically pivoted within the case including a boltlocking tumbler. 8. In. a lock, in combination, a lock case,

a key cylindernon-rotatably but detachably" supported on the case, and a tumbler for locking the cylinder in position on the case and adapted to be displaced for permitting detachment of-the cylinder. Y

tumbler and a cylinder-locking 9.-In a lock, in combination, a lock case, x

a key cylinder, the case eing shaped to receive andhold the cylinder against rotation, and a tumbler for holding the cylin der from axial displacement '10. In alock, in combination, alock case", a key cylinder, a rotatable key guide within said cylinder, and a spring-pressedtuinbler adapted tor locking the cylinder to the case and to bedisplaced against its springjpres' sure for permitting withdrawal of the cylinder from the case 11. In a lock, in combination, a lock case, a key cylinder non-rotatably but detachably supported on both the front and rear walls of the case, and means within the case for locking the cylinder thereto upon assembly of the cylinder and case and adapted to be is supported on said front and rear wallsfrom the case.

displaced for withdrawal of the cylinder 12. In a lock," in combination, a lock case,

a ,key cylindernon-rotatably but detachably supported on both the front and rear walls of the case, and means within the case for detachably engaging the cylinder when it for looking it in position thereon,

13; Ina lock, in combination, a lock case, a keycylinder non-rotatably but detachably supported on both the front and rear walls of the case, and a tumbler within the case for locking the cylinder in position.

14:. In aslock, in combination, a lock case, a tumbler pivot pin supported at opposite ends on the front and rear walls of the case, a locking bolt in the case, a plurality of Y spring-pressedtumblers pivoted on said pin including a bolt-locking tumbler and a cylinder-locking tumbler, and a key cylinder adapted to be inserted at one end into the case and to'be locked therein against rotation by said cylinder-locking tumbler.

15,, In a lock, in combination, a lock case,

at keycylinder adapted to be inserted through the front wall of the case and to be supported .on* both'thefront and rear walls thereof,-a key guide rotatably mounted in L the key cylinder, and a plurality oflocking der.

der is non-rotatably supported on opposite walls of the case, and means for detac ably connecting the cylinder to the case.

a key cylinder cut away at one end providing an inclined-face and a lock-receiving notch, the case having an opening in its front wall to receive the cutaway end 'of the key" cylinder, a spring-pressed locking part 'in the case normal y over-reachin said o ning and adapted t5 be displace by sai inclmed face upon insertion of the cylinder and to snap into said notch for locking the cylinder against Withdrawal, and

means supporting the inserted end of the key cylinder on the rear wall of the case.

'18. In a lock, in combination, a lock case having an arcuate opening in its front case having an arcuate opening in its front and its rear wall, a key cylinder :cut away on one side part way of its length leaving a cylindrical end portion, the" cutaway end of the cylinder being adapted to be inserted lengthwise through the opening in the front wall and having a reduced end adapted to fit in the opening in the rear wall, the cutaway end of the cyhnder havlng a lockreceiving recess, and a locking'membcr 1n 'the case adapted to enter said recess for locking the cylinder in the case.

- 19. In a lock, in combination, a lock case having an opening through its front wall including an arcuate portion, a key cylinder cut away at one end part way of its length leaving a cylindrical key-receiving end, a spring-pressed locking part in connection with the case normally over-reaching said arcuate portion of the case opening, the cutaway end-of the key cylinder being adapted to be inserted through said opening and to displace said part, which is adapted to snap into locking engagement with the key cylinder for preventing its withdrawal, and the key cylinder when in said locked position" being held against rotation by contact with the ends of said arcuate slot portion- 20. In a lock, a lock case for insertion in a mortise and having a cylinder receiving slot in both front and rear walls thereof, a hollow shell-like cylinder adapted to enter u said slots and to be held against rotation thereby, and key operable means for releasably locking said cylinder in position in said case.

21. In a look, a key cylinder having a cylindrical outer section, a substantially semi-cylindrical intermediate section providing a shoulder in conjunction with the outer section, a reduced inner section, and

lUti

a recess in one of the latter two sections;

the shoulder formed by the juncture of the outer and intermediate sections being adapted to axially position the cylinder in a lock case, the intermediate section being adapted to be su ported on the rear wall of the case, and t e recess being adaptedto receive a tumbler within the'case to lock-' ingly interengage the lock case and cylin- 17. In a lock, in combination, a lock..case, ,d

22. In a mortise look, a lock case having front and rear walls, a key cylinder engaged by said front and rear walls against rotation, and means automatically operative upon insertion of said cylinder within by said front and rear walls against rotation, means automatically operative upon insertion of said cylinder within said casing for retaining said cylinder against displacement, and a key guide rotatably mounted within said cylinder.

2:. In a lock,'a lock case having front and rear walls, a key cylinder engaged by said front and rear walls against rotation, means automatically operative upon insertion of said cylinder Within said casing for retaining said cylinder against displacement, and a key guide rotatably retained within and by said key cylinder.

25. In a look, a Walled casing, a key cylinder having a portion adapted to be non-rotatively engaged and positioned by one Wall of the casing and having a shoulder portion adapted to engage another Wall of the casing to axially position said cylinder with respect to said casing, and rotatable means connected with said cylinder for guiding a key within said cylinder.

GEDOR "W. ALDEEN.

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