US1888095A - Lock - Google Patents

Description

Nov. 15, 1932.

.J.v H. SHAW 1,888,095

LOCK

Filed March '7, 1929 2 Sheets-Sheet .1

Qwuawtoz 99%, 59 M Nov. 15, 1932. J. H. SHAW 1,888,095

LOCK

Filed March 7, 1929 2 Sheets-Sheet 2 VII/114g,

Patented Nov. 15, 1932 1 UNITED STATES PATENT orricr:

JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, ASSIGNOIt TO SARGENT & QQM PANY,

. OF NEW HAVEN, CONNECTICUT LOCK Application filed'Mar-ch7, 1929. Seria1 No. 344,973. r

This invention relates to locks'and it has especial reference tomortise locks of the type in which a latch bolt is'provided which may be retracted from either the interior or the exterior of the door.

One of the primary objects of the invention is to furnish avery simple, inexpensive and efiicient mechanism for a lock of, the general character stated. p v

Another object of the invention is to provide an improved form of lock of the above character in which means is provided for dogging the latch bolt against operation b the knob on the exterior of the door.

A further object of the invention is to provide key controlled means at the exterior of the door for releasing the exterior knob of the door from the dogging means whereby the latch bolt may be retracted by the'knob.

a To theseand other ends, the invention consists in the novel features and combination of parts to be hereinafter described and claimed. l

. In the drawings,

having a lock according to my invention mounted therein; V

.Fig. 2 is an end View of the door shown in Fig. 1;

30 Fig. 3- is a view oftheninterior mechanism of the mortise lock,"with the cap plate ,re-'

ing certain partsof the lock mechanism in a different position; v A

Fig. 7 is a sectional view along line 77 of Fig.

Fig. 8 is a sectional View. along line 8 8 of Fig. 7 and Fig. 5.

Referring to the drawings in which I have illustrated my invention by showing a preferred embodiment ofthe' same, the reference numeral 10 indicates, in general, a section 50 of a door having mounted therein a mortise having a head 1'6,'a stem 17', and a crosshead Fig. 9 is a sectional viewalong line 29 of lockgenerally indicated by the referen ce numeralll and having a case 12, provided with .a face plate 13 and a cap plate 14.- Reference numeral 15 indicates, in general, a latch bolt 18,1atch'bolt 15 being constantly urged into protracted position by means of compression spring 19, received in an internal bore in stem 17, and bearing against post on case 12.- Inan upperpart of lock;.case12, a retracting lever21 is pivoted, as at 22, lever 21'having an end 23 engaging crosshead -18. Pivotally supported onlever'21 at an 'intermediate point 24 is alink 25, link25 ibeing' pivotally supported on a lever 26 at; an intermediate point, as at 27. Lever 26 at its Upper end is pivotallymounted on;post 28on case 12, and at its lower end is providedwith a laterally extending arm 29 engageableby a plurality of rollbacks 30, 31 and 32, rollback 30 being provided with a preferablyfsquare or otherwise non-circulariaxial opening for the reception of a non-c1rcularstem 33 of knob 34,. which is onthe inside of door 10. Fig. 1 is a fragmentary view of the door Rollback 30' is counterbored,;'as at 35, for the reception of hub 36 on rollback 31, while the latter is counterbored .at.-37 ;for the reception of hub 38 on'rollb'aek 32. Rollbacks 30 and 32; are provided on theirouterends with "hubs 39; and 40 which are, received in oppositely disposed openings in case '12 and face p1ate'14. Rollbacks31 and 32 are pro;- vided with square "or otherwise non-circular openings for the reception of a non-circular stem 41 of knob 42, the latter being disposed on the 'exteriorof the door and secured to stem 41 in a manner to be hereinafter, pointed out. From the above description of the inven tion, it will be readily understood by one skilled in the art that rotation of knob 34 will resultin the rotation of rollback 30, and,

through levers 26 and 21 the retraction of the I, latch bolt 15, while. rotation of knob42 will rotate rollbacks 31' and 32 and retract the latch bolt in a similar manner. r In order that thelatch bolt retracting mechanism may be dogged against operation from the exterior knob of the door, in the present instance knob 42, .th'erollback 3l i s lever or walking beam .47, fulcrumed on case 12, as at 48.

In order to hold the thumb slide in dogging or releasing position slide 45 is provided with a pair of transverse notches 49 and 50 which are engageable by the curved end of spring 51, the latter being bent about a post 52 on case 12 andhaving a hook-like end 53 engaging a post 54 on lock case 12, spring 51 passing between post-'52 and thumb slide 45, slide 45 cooperating'with posts 52 and 54 to hold thes'pring in the lockcase. It will be readily understood without further description that spring'51'acts, as adetent to hold slide 45 at either end of its stroke.

Knob 42 is preferably hollow and has mounted in the interior thereof a sleeve 55 in which is received acylinder lock 56 having on a rearward part thereof a sleeve-like end 57 provided with an axially threaded opening 58 for the reception of the similarly threaded end of stem 41.; Stem 41 is provided with a preferably square bore in which is received a square rod 59, square rod 59 being connected to stem 33 by a swivel joint,

as for example bya pin 60, pin 60 being rotatably received within axial openings in rod 59 and stem 33 and being held against axial movement therein by means of grooves 61 and 62, which are near the ends of pin 60, the-walls of stemr33 and of square rod 59 being struck inwardly into the grooves, as at63. V .f

The arrangement is such thatgrod 59 and stem 33 are free to rotate on pin 60, but are held against axial movement thereon. Passing through the stem 41 and through square rod 59 is a pin 65, stem 41 being provided with oppositely disposed longitudinally extending slots 66 which permitaxial movement of stem 41 on square rod 59, for a; purpose to be hereinafter described.

' Cylinder lock 56 comprises a key plug-67,

a plurality of pin tumblers ,68'controlling' the rotation of the key plug, and a radially movable'bolt 69,v provided with end 70 which is-n'orinally received in an opening 71 in islee've 55. Bolt 69 at its upper end is provided with a bore 72 for the reception of a compression spring 73, one end of which bearsagainst the boltwhile the opposite end is received in an Key plug 67 is provided on its end adjacent the bolt 69 with a crankpin or cam 75 which is received in a transverse slot 76 in bolt 69.

opening 7 4 in the cylinder Uponfthe insertion of a key 77 having suit- 56, a threaded pin 78 is mounted in the cylinder lockand extends into a transverse slot 7 79 in key'plug 67. Preferably, sleeve 55'is mounted inknob 42 by means of threaded sleeve end 80, received in a threaded opening in the knob, rotationof sleeve 55 relatively to the knob 42 being prevented by one or more screws 81,'partly in the sleeve and partly inthe knob. One or more screws 82 pass through knob shank64 and'into knob "42 to secure these parts rigidly together.

Upon the withdrawal of bolt head 7 0' from opening 71, cylinder lock 56 is free to move inan 'axial'direction in sleeve 55, this movement being limitediby screw 83 which passes through sleeve 55 and into axially extending opening 84 in cylinder lock 56. r The operation of the lock may be readily understoodfrom the above description, but

will be'briefly described as followszNormally, the lock parts-occupy the positions shown in Figs. 3 and 5 wherein stem 41 is shown received in the rollbacks 31 and 32; In this position rotation of knob 42 through pin 65 and stem 41. will produce rotation of rollbacks 31 and 32 and through'the medium of levers "21 and'26, the retraction of bolt "15.

end between shoulders 43 and 44 of rollback V 31, whereupon the latteris held against rotation. Since stem 41 is received inrollback 31, it will be readily understood that the knob 42 is now held against turning move ment and the latch may not'be retracted thereby.

If,'however,'a suitable key 77 is now inserted in cylinder lock 56 and rotated, the

bolt head 7 0 of bolt 69 may be withdrawn from opening 71, whereupon the cylinder lock may be moved axially in sleeve 55-into the: position shown in Fig.6,in which position stem 41 is withdrawn from rollback 31, slots 66 permitting relative axial movement between stem 41 androd 59;, The knob- 42 may now be rotated and through the engagement of stem 41 with rollback 32 will retract the latch bolt, as may be readily understood. The severalflparts of the lock maybe left in this position as long as is desirable, and may be restored to dogged position by movingthe cylinder lock axially lnwardlyin sleeve 55 and. rotating key plug67 to bring boltend 70 into opening 71, whereupon the stem 41 is again inengagementwith rollback 31 and i the knob 42 doggedaga1nst operation.

' In order to prevent shoulders 43 and 44 0t V the dogged rollback.

with thumb slide 45, and in order to properly align rollbacks 30, 31' and 32 arnumber of springs 85, 86 and 87 are mounted in a lower part of the lock case 12, springs 85, 86 and 87 being mounted in dove-tailed slots in post 88 on'case 12 and having their outer ends in engagement with the lower flat faces 89 of rollbacks 30, 31 and 32.

From the above description of the nature of the invention and the preferred embodiment of the same, it will be readily understood that I have provided a relatively simdogged against operation and in which key controlled means is provided for releasing the exterior knob of thedoor from its dogged condition. I

lVhile I have shown a preferred embodiment of my invention, it is to be understood that the same is not to be limited to all the details shown but is capable of modification and variation Within the spirit of the invention and the scope of the appended claims.

I claim: r 1. In a lock for a door or the like, a lock case, a latch bolt therein, a knob at the ex-' terior of sa d door for retracting said latch bolt, means for dogging said knob against retraction of said latch bolt, and vmeans at the exterior of the door for releasing the knob from control by the dogging means to permit the retraction of the latch bolt by said knob, the dogging means remaining in dogging posit on during such release.

'2. In a lock for a door or the like, a lock case, a latch bolt therein, a. knob at theex terior of said door, a pair of rollbacks in the lock case, means connected to said knob and extending into said lock case to engage said rollbacks, means for dogging one of said rollbacks, and means at the exterior of the door for disengaging the 3. In a lock for a door orthe like, a lock case, a latch bolt therein, a 'knoblat the exterior of. the door, a pair of rollbacks within the lock case for retracting said latch bolt, a stem for said knob extending into the lock case and normally engaging said pair of roll- .backs, means for dogging one of said roll backs against operation, and means at the exterior of the door for disengaging said stem from the dogged rollback.

4. In a lock for a door or the like, a lock case, a latch bolt therein, a knob at the exterior of the door, a pair of rollbacks Within the lock case for retracting said latch bolt,

a stem for said knob extending into the lock case and normally engaging said pair of rollbacks, means for dogging oneof said rollbacks against operation, and key controlled means at the exterior of'the' door for first named means from gisenga'ging said stem from the dogged rollack. I I a 5. In a lock for, a door or the like, a lock case, a latch-bolt therein, a knob at the exterior-of the door, a pair of rollbacks Within the lock case for retracting said latch bolt, a stem for said knob extending into the lock case and normallyengaging said pair of rollbacks, means for dogging one of said rollbacks against operatlon, and keycontrolled means carried by the knob at the exterior of the door for disengaging said stem from the dogged rollback. ple form of lock mechanism in which a knob mounted on the exterior of the door may be 6. In a lock for a 'door or the like, alock case, a latch bolt therein, a'knob at the exknob, a pair of rollbacks Within the lock case for retracting"saidllatch' bolt, said slidable stem having a vpermanent operative connection wlth one of said rollbacks and being terior of the door, a slidable stem'on said Y movable into engagement with the other of tending into the lock case and normally'engaging both of said rollbacks to actuate the same upon rotation of the knob, means for dogging one of the'ro-llbacks against actuation bythe knob, and means for moving said movable means out 'ofengagement withthe dogged rollback.

8. In a lock for a dooror the like, a lock case, a latch bolt therein, a knob at the exterior of the door, a pairof rollbacks Within the case for retracting said latch bolt, movable means connected to said knob and extendinginto the lock case and normally en,-

gaging both of saidrollba'cks to-actuate'the same upon rotation of the knob, means for dogging one of the rollbacks against actuationby the knob, and means for moving said movable means out of engagement with the dogged rollback, said last named means comprising key controlled means carried-atrthe exterior of the door.

9; In a lock-fora dooror case, a latch bolt therein, a knob atthe exterior of the door, a pair of rollbacks Within the like, a lock the case for retracting saidlatch bolt,movable 7 means connected to said knob andextending into the lock case and normally engaging both of said rollbacks tolactuate the same 1 upon rotation of the knob, means for dogging one of the rollbacks against actuation by the knob, and means for moving said movable means out of engagement With the dogged rollbacln'said last named mean'sflincluding key controlled means carried by the knob at the exteriorof the door for controlling the movement of saidmovablemeans;

10; In a lock'for a door or the like, alock case, a latch bolt mounted therein, a knob 'slidable stem out oI enga ement-with the dogged rollback.

11. In a lock for adoor or the like, a lock case, a latch bolt in saidcase, a rollback for retracting said latch bolt, a'knobfhaving a stem movable relatively to'the knob, said stem in one position engaging said rollback to permit retraction of thelatch bolt by the knob and in another position being free from engagement with said rollback, means for dogging the rollback against operation of the retracting ,meTchanism, and -key controlled means carried by the knob for controlling the movement oi said stem;

12. In a lock for adoor or the like, a lock case, a latch bolt in saidcase, a rollback for retracting said'latch bolt, a knob having stem movable in an axial direction relatively to the knob, said stem in one position engagin said rollback to permit retraction of the latch bolt by the knob and in another position being free from engagement with said rollback, means for dogging the rollback against operation ofthe retracting mechanism, additional means operable by the knob for retracting the latch bolt, and key controlled aneans carried by theknob for controlling the movement of said stem. 7

13. In a lockfor a door or the like, a lock case, a knob mounted on'the same, acylinder lock in said knob, said cylinder lock being axially movable in said knob, a latch bolt in :said case, latch retractingmechanism in theicase, and means controlled by the axial movement of the cylinder lock in the knob for connecting said knob to an 'oper tive part of the latch retracting mechanism.

14. In a lock for a door or the like, a lock case, a knob mounted on the same, a cylinder lock in said knob, said cylinder lockbeing axially movable in said knob, a latch bolt in said case, latch retracting mechanism ln'the case, and a stemconnected to said cylinder lock, saidstem being adapted to be'brought into operative engagement with an operative part of the latch retractingmechanism upon a, a1 movementof the cylinder lock in the knob. v r v 15. {In a lock-for a door or the like,'a lock case, a knob, astem slidabl connected to and back. i I V l9. Ina lock for a door or the like, a look 16. In a lock for a door or the like, a look case, a knob rotatably mounted thereon, a knob stem mounted 1n the lock case, for rotationwith said knob and axial movement with respect thereto, alatch bolt in said case, a pair of axially aligned latch retracting rollbacks in said case, said rollbacks being provided with axial openings in which said stem is normally received, means for dogging one of said rollbacks, and means for. moving said stem axially out of engagement with the dogged rollback.

17. In a lock for a door or the like, a lock case, a knob, a cylinder look movably mountod in. said knob, a stem for said knob, alatch in said case, latch retracting'mechanism in said case, and a connection between said cylinder' lock and stem, whereby the latter may be moved" into and out of operative engagement with a part of said latch retracting mechanism by movement of said cylinder lock in said knob.

18. In a lock for a door or the like, alock case, a latch bolt therein, a knob at the exterior of the door, a pair of rollbacks within the casefor retracting said latoh'bolt, movablemeans connected-to said knob and extending into the lock case and normally engaging both oi said rollbacks toactuate the same upon rotation of the knob, means for dogging one of the rollbacks. against actuation "by the knob, and means for moving said movable means out of engagement with the dogged'rollback, said last named means including acylinder lock connected to said stem and mounted for movement in said knobflto disengage said stem case, a latch bolt therein, a knob at the eaterior oi the door, a pair of rollbacks, within thecase for retracting said latch bolt, mov-' able means connected to said knob and extending into the lock case and normally enboth of said rollbacks to actuate the same upon rotation of the knob, means for dogging one of the rollbacks against actuation by the knob, and means for moving said movable means but 3 of" engagement with the dogged rollback, said last named means including a cylinder lock connected to said movable means mounted for movement in said knob to disengage said means from the dogged rollback, said cylinder lock in eluding a key plug and means controlled by said key plug for controlling movementof the cylinder lock relatively to the knob.

from the dogged roll 20. In a lock for a door or the like, a lock case, a latch bolt therein, a knob at the exterior of the door, a pair of rollbacks within the case for retracting said latch bolt, a stem connected to said knob and extending into the lock case and normally engaging both of said rollbacks to actuate the same upon rotation of the knob, means for dogging one of the rollbacks against actuation by the knob, and means for moving said stem out of engagement with the dogged rollback, said last named means including a cylinder lock connected to said stem and mounted for move ment in said knob to disengage said stem from the dogged rollback,'said cylinder lock including a bolt adapted to lock the cylinder lock against movement relatively to said knob, and a key plug controlling the operation of said bolt.

21. In a lock for a door or the like, a lock case, a latch bolt therein, a knob at the exterior of the door, a pair of rollbacks within the case for retracting said latch bolt, a stem connected to said knob and extending into the lock case and normally engaging both of said rollbacks to actuate the same upon rotation of the knob, means for dogging one of the rollbacks againstactuation bythe knob, and means for moving said stem out of engagement with the dogged rollback, said last named means including a cylinder lock connected to said stem and mounted for movement in said lmob to disengage said stem from the dogged rollback, said cylinder lock including a radially movable bolt adapted to lock said cylinder lock against movement relatively to said knob, a key plug, and a cam on said key plug engaging said bolt and adapted to control the movement of the latter.

22. In a lock for a door or the like, a latch bolt, and operating mechanism for. said latch bolt, said operating mechanism including manipulable means at the exterior of the door, means for dogging a part of said mechanism to prevent operation of said mechanism by said manipulable means, and means for releasing said manipulable means from control by said dogged part while main-- taining the latter in dogged condition.

23. In a lock for a door or the like, a latch bolt, and operating mechanism for said latch bolt, said mechanism including manipulable means at the exterior of the door, a stem for said means, said stem being movable with re spect to said means, and means for locking said stem against operation of the operating mechanism in one position of thestem.

24. In a lock for a door or the like, a latch bolt, and operating mechanism for said latch bolt, said operating mechanism including manipulable means at the exterior of a door, a stem for said means, said stem being movable relatively to said means and a partof the operating mechanism, and means engaging the stem in one position thereof with respect to the manipulable means to lock the latter against operation of the operating mechanism. V

25. In a lock for a door or the like, a lock case, a latch bolt therein, a plurality of latch retracting elements within said case, a knobat the exterior of the door for operating said elements to retract said latch bolt, means for dogging one of said elements against operation by said knob, and key controlled means for releasing the knob from the dogged element to permit retraction of the latch bolt carried by said knob for releasing the knob from the dogged element to permit retrac tion of the latch bolt by said knob through another of said elements.

27. In a lock for a door or the like, a lock case, a latchbolt in said case, a knob having a stem movable'relatively to the knob, latch retracting means having an operative connection with said stem, means for holding said retracting means against operation by said stem in one position thereof, said retracting means being freely operable by the stem in another position thereof, and means for moving said stem relatively to said knob.

28. In a lock for a door or the like, a lock case, a latch bolt in said case, a knob at the exterior of the door, said knob being provided with a stem, retracting mechanism in said case including a part normally rotatable with the stem, means for locking said'part against movement by the stem, and means at the exterior of the door for disengaging the stem from said part. V

29. In a lock for a door or the like, a lock case, a latch bolt in said case, a knob at the exterior of the door, said knob being provided with a stem, retracting mechanism in said case including a part normally rotatable with the stem,"means for locking said part against movement by the stem, means at the exterior of the door for disengaging'the stem from said part, and additional means operable by the stem whendisengagedfrom said ,7 part for operating saidretracting mechanism.

In witness whereof, I- have hereunto set my hand this 14 day of February, 1929.

JOHN H. SI-IAW.

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