Mortise lock with multiple functions

Claim 2

In a mortise lock having a case, a deadbolt, A deadbolt operating member connected to the deadbolt and movable to forward and rearward positions placing said deadbolt in a projected relation and a fully retracted relation to the case, and latch mechanism including a knob operated latchbolt retraCtor for controlling and operating a spring pressed latchbolt on the case, the improvement that comprises manually operated means for moving said deadbolt operating member in rearward direction beyond its full bolt retracting position, an actuating member juxtaposed to the deadbolt operating member on the case and coacting with said latchbolt retractor, and a portion on said deadbolt operating member engaging the actuating member and moving that member whereby to actuate said latchbolt retractor when said manually operated means move the bolt operating member beyond its deadbolt retracting position, enabling the latchbolt to be retracted optionally by knob and by a movement of the deadbolt operating member.

Claim 3

The construction set forth in claim 1 comprising means through which said latchbolt retractor is in an operating relation to said deadbolt operating member when that member is in a deadbolt projecting position, said means including surfaces through which said retractor will act when knob operated to move the deadbolt operating member in deadbolt retracting direction, so that the latchbolt retractor and the deadbolt operating member will be effective each to retract both the latchbolt and the deadbolt.

Claim 4

The construction set forth in claim 2, including in combination a deadlatching dog for dogging said latchbolt in projected position, means whereby the latchbolt retractor when moving in retracting direction moves the dog to a release position relatively to the latchbolt, and said deadlatching dog comprising a portion effective when the dog is so moved by said latchbolt retractor to engage and to move the deadbolt operating member to deadbolt retracting position.

Claim 5

The construction set forth in claim 2, including in combination a knob operated hub that is effective when rotated to retract the latchbolt, a movable stop member for locking said hub, and means through which said deadbolt operating member is in operating relation to said stop member so that the deadbolt operating member when moving to retract the latchbolt may move the stop member relatively to a position locking the hub.

Claim 6

The construction set forth in claim 4, including a spring acting at all times to press said stop member toward position locking the hub, said actuating member being effective for moving the stop member to a release position against the pressure of the spring.

Claim 7

The mortise lock construction set forth in claim 1, including in combination a knob operated hub that is effective when rotated to retract the latchbolt, a movable stop member for locking said hub, and means through which said actuating member is in operating relation to said stop member so that the deadbolt operating member may move the stop member relatively to a position locking the hub.

Claim 8

The construction set forth in claim 6, including a spring acting at all times to press said stop member toward position locking the hub, said actuating member being effective for moving the stop member to a release position against pressure of the spring.

Claim 9

The construction set forth in claim 7, including a movable fingerpiece having a dogging portion for coacting with said stop member, said stop member being formed with an opening in position to accept the dogging portion of the fingerpiece when said actuating member places the stop member in release position relatively to the hub, and said spring when moving the stop member to hub locking position placing said opening out of aligned relation to the dogging portion of the fingerpiece so that said fingerpiece cannot then move to dog the stop member.

Claim 10

The mortise lock construction set forth in claim 1, in which said deadbolt is mounted for sliding on said lock case, and said deadbolt operating member is a tumbler mounted for rotation on the case, said deadbolt being formed with a slot in which a cam portion of said tumbler moves to slide said bolt between retracted and projected positions relatively to the case, a transversely extending slot communicating with the first-mentioned slot on the deadbolt for accepting said cam portion of the bolt operating tumbler when said tumbler rotates to bolt retracting position, and a portion on said tumbler engaging said actuating member and moving that member when said tumbler moves its cam portion in the transverse slot.

Claim 11

The construction set forth in claim 9, including in combination a knob operated hub that is effective when rotated to retract the latchbolt, a movable stop slide for locking said hub, and means through which said deadbolt operating tumbler is in operating relation to said stop slide so that the deadbolt operating tumbler when rotating beyond full deadbolt retracting position may move the stop member relatively to a position locking the hub.

Claim 12

The construction set forth in claim 9, including in combination a deadlatching dog for dogging said latchbolt in projected position, means whereby the latchbolt retractor when moving in retracting direction moves the dog to a release position relatively to the latchbolt, and said deadlatching dog comprising a portion extending into juxtaposed relation to said deadbolt operating tumbler, and said portion of the dog acting when the dog is moved by said latchbolt retractor to engage and to move the deadbolt operating tumbler to deadbolt retracting position.

Claim 13

In a mortise lock having a case, a deadbolt mounted for sliding on the case, a deadbolt operating tumbler mounted for rotation on the case, manually operated means for rotating said tumbler, said deadbolt being formed with a slot in which a cam portion of said tumbler moves to slide the deadbolt to projected and to fully retracted positions relatively to the case, the improvement that comprises in combination a part of said deadbolt operating tumbler in position juxtaposed to a lock actuating part when the tumbler is in deadbolt retracting position, a transversely extending slot formed in position communicating with said first-mentioned slot on the deadbolt and comprising a surface over which said cam portion of the bolt operating tumbler moves in controlling relation to the deadbolt to lock said deadbolt in retracted position when said manually operated means rotate the tumbler to a full bolt retracting position, and said transversely extending slot having a considerable length in which said cam portion will move to permit the tumbler to move said lock actuating part when the manually operated means rotate the tumbler beyond full bolt retracting position.

Claim 14

In a mortise lock having a case, a deadbolt mounted for sliding on the case, a deadbolt operating tumbler mounted for rotation on the case, manually operated means for rotating said tumbler, said deadbolt being formed with a slot in which a cam portion of said tumbler moves to slide the deadbolt to projected and to fully retracted positions relatively to the case, the improvement that comprises in combination a part of said deadbolt operating tumbler in position juxtaposed to a lock actuating part when the tumbler is in deadbolt retracting position, a transversely extending slot formed in position communicating with said first-mentioned slot on the deadbolt and comprising a surface over which said cam portion of the bolt operating tumbler moves in controlling relation to the deadbolt to lock said deadbolt in retracted position when said manually operated means rotate the tumbler to a full bolt retracting position, and said transversely extending slot having a considerable length in which said cam portion will move to permit the tumbler to move said lock actuating part when the manually operated means rotate the tumbler beyond full bolt retracting position.

Claim 15

In a mortise lock having a case, a latchbolt that is spring pressed in projected position on said case, means for retracting said latchbolt, a manually operated tumbler for actuating a further part of the lock, and a deadlatching dog for dogging said latchbolt and moved by the latchbolt retracting means to a release position when those means retract the latchbolt, the improvement that comprises said deadlatching dog formed with a portion juxtaposed to said manually operated tumbler for coacting with said tumbler, and a surface on said portion of the dog for engaging the tumbler and placing said tumbler in a predetermined actuating position when said latchbolt retracting means move the dog to release position.

Claim 16

In a mortise lock having a case, a latchbolt that is spring pressed in projected position on said case, means for retracting said latchbolt, a manually operated tumbler for actuating a further part of the lock, and a deadlatching dog for dogging said latchbolt and moved by the latchbolt retracting means to a release position when those means retract the latchbolt, the improvement that comprises said deadlatching dog formed with a portion juxtaposed to said manually operated tumbler for coacting with said tumbler, and a surface on said portion of the dog for engaging the tumbler and placing said tumbler in a predetermined actuating position when said latchbolt retracting means move the dog to release position.

Claim 17

In a mortise lock having a case, a latchbolt that is spring pressed to projected position on said case, and a hub that is manually rotatable for retracting said latchbolt, the improvement that comprises a stop member movable relatively to a position engaging said hub whereby to lock said hub against rotation in said case, a spring pressing said stop member toward its locking position, a manually operable part formed with a surface for moving said stop member against its spring pressure to a release position relatively to said hub, and said surface extending in a continuous shape enabling the spring pressure of the stop member at all times to press in a direction tending to move the manually operable part and to return said stop member to locking position, so that control of said hub by said stOp member may readily be related to various forms of manually operable part that may be assembled in the lock for coacting with the stop member.

Claim 18

In a mortise lock having a case, a latchbolt that is spring pressed to projected position on said case, and a hub that is manually rotatable for retracting said latchbolt, the improvement that comprises a stop member movable relatively to a position engaging said hub whereby to lock said hub against rotation in said case, a spring pressing said stop member toward its locking position, a manually operable part formed with a surface for moving said stop member against its spring pressure to a release position relatively to said hub, and said surface extending in a continuous shape enabling the spring pressure of the stop member at all times to press in a direction tending to move the manually operable part and to return said stop member to locking position, so that control of said hub by said stOp member may readily be related to various forms of manually operable part that may be assembled in the lock for coacting with the stop member.

Claim 19

The construction set forth in claim 14 including a fingerpiece mounted for movement to dogging and undogging positions relatively to said stop member, a portion on said fingerpiece engaging a surface on said spring pressed stop member to hold said stop member in release relation to said manually rotatable hub when the fingerpiece is in its dogging position, said portion on the fingerpiece moving away from said surface on the stop member and permitting said stop member to move by its spring pressure to locking position when the fingerpiece moves to undogging position, and parts coacting on the stop member and fingerpiece to hold the fingerpiece in undogging position while said stop member is in locking position, so that said fingerpiece will be ineffective to move said stop member to position releasing said hub.

Claim 20

In a mortise lock having a case, a deadbolt, a deadbolt operating tumbler connected to said deadbolt and rotatable in deadbolt projecting and retracting directions on the case, and a thumb turn for rotating said tumbler, the improvement that comprises pawl and ratchet means engaging between said thumb turn and said tumbler so that the thumb turn when rotating in bolt retracting direction will retract the deadbolt, and enabling the thumb turn to rotate relatively to the tumbler so that the thumb turn will be ineffective to project the deadbolt, and further means for rotating the tumbler in deadbolt projecting and retracting directions.

Claim 21

In a mortise lock having a case, a deadbolt, a deadbolt operating tumbler connected to said deadbolt and rotatable in deadbolt projecting and retracting directions on the case, and a thumb turn for rotating said tumbler, the improvement that comprises pawl and ratchet means engaging between said thumb turn and said tumbler so that the thumb turn when rotating in bolt retracting direction will retract the deadbolt, and enabling the thumb turn to rotate relatively to the tumbler so that the thumb turn will be ineffective to project the deadbolt, and further means for rotating the tumbler in deadbolt projecting and retracting directions.

Claim 22

The construction set forth in claim 16 comprising in combination a spring pressed latchbolt on the lock case, a knob operated hub for retracting said latchbolt, a stop member spring pressed to a position locking said hub, an actuating member coacting with said stop member, and a portion on said deadbolt operating tumbler engaging said actuating member and moving that member so as to press said stop member to a release position relatively to said hub when said tumbler rotates in a deadbolt retracting direction.

Claim 23

The construction set forth in claim 16, in which said thumb turn is equipped with a spindle that is engaged for rotating movements in an opening in said deadbolt operating tumbler, a pawl that is spring pressed in a radial direction on said spindle, and said deadbolt operating member having a ratchet surface forming said opening and engaged by said pawl.

Claim 24

In a mortise lock having a case, a deadbolt, a deadbolt operating tumbler connected to said deadbolt and rotatable in deadbolt projecting and retracting directions on the case, and a thumbturn having a spindle engaging an opening in said tumbler for rotating said tumbler, the improvement that comprises coacting means in lost motion relation to one another on the surface of said tumbler opening and on said thumbturn spindle and permitting the thumbturn a rotating movement of substantial extent while ineffective to move the deadbolt, the coacting means on the surface of the tumbler opening adapted to accept a further thumbturn spindle that keys therewith so that said tumbler will rotate integrally with the further spindle to move said deadbolt simultaneously with each rotating movement of a thumbturn.

Claim 25

In a mortise lock having a case, a deadbolt, a deadbolt operating tumbler connected to said deadbolt and rotatable in deadbolt projecting and retracting directions on the case, and a thumbturn having a spindle engaging an opening in said tumbler for rotating said tumbler, the improvement that comprises coacting means in lost motion relation to one another on the surface of said tumbler opening and on said thumbturn spindle and permitting the thumbturn a rotating movement of substantial extent while ineffective to move the deadbolt, the coacting means on the surface of the tumbler opening adapted to accept a further thumbturn spindle that keys therewith so that said tumbler will rotate integrally with the further spindle to move said deadbolt simultaneously with each rotating movement of a thumbturn.