US2378976A

US2378976A - Cylinder lock

Info

Publication number: US2378976A
Authority: US
Inventors: Herbert W Brooks
Original assignee: Sargent and Co
Current assignee: Sargent Manufacturing Co
Priority date: 1943-12-09
Filing date: 1943-12-09
Publication date: 1945-06-26
Anticipated expiration: 1962-06-26

Description

June 26, 1945. v H. w. BROOKS CYLINDER LOCK Filed Dec. 9, 1945 PM JnneZB, 1945 UNITED STATES PATENT OFFICE Herbert w. Brooks, West Haven, cum, uslgnor to Sargent & Oompany, New Haven, Conn, a

in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanyi g drawing:

Fig. lisasectionalviewofalockembo y my invention;

corporation of Connecticut Application December 9, 1943, Serial No. 513,545

r Claims- (Cl. 70-363) This invention relates to locks, and more par- Fig. 2 is alsoa sectional view on line 2-2 of ticularly to a lock'of cylindrical form which may Fig, 1; V l be employed in any relation in which a key- Fig. 3 isa sectional view on line 3-3 of Fig. l; operated lockis desired. Fig. 4 is a. sectional view on line l4 of Fig. 1; Locks of this type very often employ so-called o, and I pin tumblers in that they are provided with sec- Fig. 5 is a sectional view, similar to Fig. i, but tional pins extending transversely of a slotted showing the pin tumblers aligned by thekey to key barrel, so that when the key is inserted in permit operation of the lock. the slot in the key board the breaks in the pins I have shown in Fig. 1 of the drawing a lock will be aligned to permit rotation of the barrel. lo comprising a casing formed of acup-shaped body Other cylinder locks arev provided with a plu portion Ill and a. cap oraiace member ,the latter rality of disks or plates slotted to receive a key. overlapping the body of the casing, as shown at the bit of which aligns these plates with the key l2. Within the casing thus formed are inner and barrel so that the latter may be turned. outer shells l3 and II, these shells being gen- The present lock, however, distinguishes, from erally of cup-shaped form, the outer one of which both forms of locks described above in that there is provided with a key slot l5 which registers are provided within the lock case a plurality of I with the key opening It in the cap ll of the disks or plates supe one upon the other. casing. The inner shell I3 is also provided with One of these disks is fixed with respect to the lock an openingv H which registers with an opening case, while the others are rotatable with respect 20, I 8 inthe body it of the casing. l to the case. The rotatable disks are locked to The two shells l3 and I are spaced apart by the fixed disk by means of sectional pins similar a disk l9 which fits fairly snugly within the body in some respectsyto the pin tumblers described portion III of the casing, but is provided with diaabove, in that, while they normally prevent rotametrically opposite recesses designed to receive tion of the: rotatabiedisks with respectto the the transversely turned ends 2! of lugs extending fixed'disk, the breaks in these sectional pins can upwardly from the cap I! so that the disk I! is be aligned sons to permit such rotation. In the secured against movement relatively to the casing. present instance the extend longitudinally L This disk, as will be explained hereinafter, serves of the key instead of transversely thereof, so that as the locking disk to secure. the parts against they extend transversely of the disks 01- plates rotatiom It will be apparent from Fig. 4, for exand are pushed inwardly by thekey to be propample, that the disk I5 is substantially of the erly aligned. same diameter as the inner diameter of the cas- One object of the present invention is to provide ing portion ill, so that it will lie between the ends a cylinder lock of novel construction. of the inner and outer shells l 3 and It and space A further object of the invention is to provide 3 these shells apart. i a novel form of cylinder lock comprising a. plu- Within the shells l3 and H and on each side rality oi superposed disks pins extending lonof the disk I! are provided a plurality of rotating gitudinally of the axis or the lock to normally disks 22 all of similar form and shape. Any delock thediskstogether. sired number of these disks may be provided as A still further object of the invention isto pro- 40 desired. As shown, three are provided on each vide a cylinder lock of novel construction having side of the disk I 9. or six of the disks 22 in all. a plurality of superposed disks mounted within a These disks, as shown in Fig. 3, are of generally lock case, at least one or which disks is held circular form and lie within the surrounding against rotation and others of the disks locked to shells. They are, however, provided at diametthe secured disk by sectional pins designed to be ricaliy opposite points with lugs 23 which fit withalie' ed by, a key such that rotation of: the movin slots 24 in the shells so as to lock these disks able disks may be effected relativelyto thefixed to the shells. As will also be apparent from Fig. disk and thus serve to operate a rollback or 3 and Fig. 4, thedisk I9 is provided with openings other lockingmember. 25 and the disks 2! with openings 25 which regis- To these and other. ends the invention consists ter with the openings 25 and with each other when the lugs 23 of the disks are aligned, so that the

openings

25 and 2 form a continuous open-.

ing or recess longitudinally of the lock casing or parallel to its axis.

ll Within these recesses are mounted sectional of the lock by springs 28. As many of the

openings

25 and 26 may be provided as desired, but as shown two are provided in each of the plates I 9.

and 22 so that the lock will accommodate two of the sectional pins 21. It will be seen from Fig. 1 of the drawing that when the pins 21 are in their forward positions, in which they are maintained by the springs 28, the breaks between the sections of the pins do not registerwith the inner and outer surfaces of the disk l9, so that these pins lock the adjoining disks to the disk l9. As the latter is held against rotation relatively to the casing, and as the forward and rear disks 22 are secured together by reason ofthe fact that they are secured to the shells I3 and II by the lugs 23, the rotation of the disks 22 and shells l3 and M will be prevented.

When it is desired to operate the look a proper key 29 is inserted through the key slots l5 and IS, the key-being provided with a central bit por- .tion 30 which isreceived in slots 3| in the plates What I claim is:

1. A lock structure comprising a generally cylindrical casing, a. pair of cup-shaped members rotatably mounted therein with their open ends .facing each other, a plurality of disks non-roopenings.

22 and a circular opening 33 in the plate IS. The

key 29 is also provided with pin-actuating mem-' bers or

arms

34 and 35, which engage below the sectional Pins 21 and raise these pins until the breaks therein register with the inner and outer surfaces of the disk l9, as shown in Fig. 5. At this time if the key is turned the'inner and outer disks 22 will be rotated together with the shells l3 and I4, as the key fits snugly in the slots 3|. The disk I 9 will remain stationary, however, due toits connection with the casing, and the key is permitted to rotate therein due to the fact that this disk is provided with a circular opening 33 of a diameter equal-to or slightly larger than the width of the key bit. It will be understood that the keyv slot IS in the outer casing is of such a shape as to permit insertion and withdrawal of the key only in one position, and therefore the parts must be turned back to their original position before the key is withdrawn. When the key is withdrawn, however, the sectional tumblers 21 willbe forced outwardly by their springs 28 and the parts will again be in locked position.

An actuating member or post 26 is rotatably mounted at the inner end of the casing and secured to the inner shell l3, which operating member may actuate a locking device of any desired form. This member is provided with a reduced inner end 31 which passes through the openings' l1 and I8, and a lug or key 38 on the part i 31 serves to secure it non-rotatably to the shell. Also the enlarged portion of the member 36 may be slightly longer at one point to provide the shoulder 39, which is adapted to engage a shoulder or lug 40 extending inwardly from the edge of the opening l8 to limit the rotation of the post It will be apparent, therefore, that when the disks 22 are rotated and the shell l3 rotated by reason of the connection of these disks with the shell, the post 36 will'also be rotated, as permitted by the shoulder or shoulders 39, which will serve to actuate any locking device connected to the rotating post.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the claims.

2. A lock structure comprising a generally cylindrical casing, a pair of cup-shaped members rotatably mounted therein with their open ends facing each other, a plurality of disks in each of said members, the latter having slots formed in the walls thereof andthe disks having projecting lugs disposed in said slots to secure the disks nonrotatably to the member, an additional disk mounted between said members and secured against rotation in the casing, all of said disks having registering openings therein and sectional pins slidably mounted in said openings.

- 3. A look structure comprising a generally cyrotatably mounted therein with their open ends facing each other, a pluralityof disks non-rotatably mounted in each of said members, an additional disk mounted between said members and secured against rotation in the casing, said disk having a notch formed in the edge thereof, said casing consisting of a body portion and a cap portion, said cap portion having lugs disposed in said notches to secure the disk nonrotatably to the casing, allof said disks having registering openings therein and sectional Pins slidably mounted in said openings.

4. A look structure comprising a generally cylindrical casing consisting of a bodyportion and a cap portion, the latter having lugs turned inwardly and projecting through openings in the body portion, a disk mounted in said casing and being engaged with the inturned ends of said lugs .a post projecting from the body portion of the casing, and means connecting said post to said additional disks to be rotatable therewith relatively to the casing.

5. A look structure comprising a generally cylindrical casing consisting of a body portion and a cap portion, the latter having lugs turned inwardly and projecting through openings in the body portion, a disk mounted in said casing and being engaged with the intumed ends of said lugs to prevent rotation thereof 'relatively to the casing, a plurality of additional disks oneach side of said first-named disk, said additional disks being rotatably mounted in the casing, all of said disks having registering openings therein and sectional pins mounted in said opening, a post projecting from, the body portion of the casing, means connecting said post to said additional disks to be rotatable therewith relatively to the casing, and cooperating means on said casing and Post to limit rotation of the latter.

' HERBERT W. BROOKS.