US1493526A - Lock - Google Patents

Description

May 13, 1924. 1,493,526

J. B. FRI-:YSINGER LOCK Filed June 2. 1922 2 Sheets-Sheet l iff-- gwmroz 61H01 weg@ J. B. FREYSINGER May 13 1924.

LOCK

Filed June 2. 1922 2 Sheets-Sheet 2 Patented May 13, 19-24.

UNITED STATES y 1,493,526 PATENT oFFicE.

JOHN B. FRE-YSINGER, 0F STANFORD, CONNECTICUT, ASSIGNOR TO THE YALE TOWNE MANUFACTURING COMPANY, 0F STAMFORD, CONNECTICUT.

LOCK.

Application led qlune 2, 1922. Serial No. 565,333.

To all whom zt may concern.'

Be it known that I, JOHN B. FnnrsiNoER, a citizen of the United States, and aresident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.-

This invention relates -to improvements in locks and more particularly to such as are constructed with special reference to rendering them proof against jimmying,-one object of the invention being to provide in a simple structure, deadlocking means located in the strike and cooperable withY a latch bolt in a manner to deadlock the latter against any jimmy force.

A further object is to so construct a jimmy-proof lock, that the latch.bolt shall he operable either independently of the antijimmy dead locking means or in cooperation therewith.

With these and other objects in view, the invention consists incertain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings; Figure 1 is a sectional view of the lock structure, including the strike or keeper member thereof, showing an embodiment of m invention; Figure 2 is a rear face view with the cover plates removed; Figure 3 shows face and side views of the latch bolt; Figure 4 shows face and edge views of the carrier locking lever; Figure 5 shows face and edge views of the knob cam; Figure 6 represents the latch carrier in front and side elevations; Figure 7 illustrates face and edge views of the latch stop; Figure 8 is a view showing the bolts in retracted or unlocked positions; Figure 9 is a sectional view showing the bolts in dead locked positions, and Figure 10 is a rear face view of the structure shown in Figure 9 with the carriage omitted.

In the drawings, I have illustrated my improvements as-applied to a lock of the rim type, in which 1 represents the lock casing to be secured to a door so that its forward edge shall be Hush with the edge of the door, and 2 represents a strike or keeper to be secured to the door jamb or frame so that its front or exposed wall may lie flush with the face of said jamb yor frame, and said keepermay be provided with a flange or extension 3 erforated for the accommodation of securing means. The keeper 2 is made as a casing having a cover plate 4 and its exposed wall isprovi passage of bolt members mounted in the lock cas1ng,-the front end wall of the latter being provided with similar openings 7 and Mounted in the lock casing 1, vis a latch bolt 9 and for the latter, a movable carrier 10 is provided. The head portion of the latch bolt is made with upper and lower recesses 11, 12, and said latch bolt is provided with a rearwardly projecting, offset arm or extension 13 having at its rear end, a boss 14. The latch bolt is also made on its top, with a perforated lug 15 for the assage of a carrier rod 16. The carrier ro 16 passes through holes in bosses 17 and 18 at respective ends of the carrier and is inned to the former of these bosses as indicated at 19. The latch bolt carrier 10 is also provided with a boss 2O adjacent to theboss 18 and with a lug 21. A coiled spring 22 is located on'the rod 16 and bears'at one end against the boss 18 on the carrier, the other end of said'spring bearing against the lug 15 on the latch bolt, so that said latch bolt may be pressed back against the resistance of said spring (without moving the carrier), to

ed with openings 5 and 6, 6, for the i withdraw said latch bolt from the keeper and release the door. j

Normally, the latch bolt will be projected by the action of the spring 22, to what may be termed a single throw position. In

other words, the head of the latch bolt normally projects approximately ive-eighthsof an inch from the lock casing 1 and enters the keeper.

The spindle of a knob 23 enters the casing 1 and carries a knob cam 24,-for which latter a washer 25 is provided and a spring 26,

in and moved to position tocooperate with said lug, by the action of a spring 33, one arm of whlch enters a slot 34 in said lever andthe other arm of said spring engages the p lug 21 on the carrier.

Anti-jimm ing, dead lockin devices are provided as ereinafter descri ed butv when these devices are not in locked osition and it is desired to operate the latch olt to withdraw it from its single throw position by operation of the knob and thus release the door,the carrier will be held in locked position by cooperation of the lever 31 with the lug 32, and the operator will turn the knob 23 in a counter-clockwise direction (toward the rear end of the lock) and thus cause counter-clockwise rotation of the knob cam 24. During such turnin of the knob cam, its arm 27 will engage t e boss 14 on the latch bolt and move the latter backwardly (compressing the spring 22), te retract said bolt five-eighths of an inch, and release the door from the keeper. The rearward movement of the latch bolt will be iimited by engagement of the boss 14 thereon with the boss 20 on the carrier 10, and when the'inob 23 shall have been released by the operator, the latch bolt will be projected to its normal single throw position by the action of the spring 22.

In order that the latch may be operated by means of a key, a roll back 35 is provided and is cooperable with the arm 28 of the knob cam 28, so that when said roll back is turned counter-clockwise thelatch will be withdrawn in the same manner` as above described in connection with the operation of the knob. When the roll back shall have been turned approximately fifty-five degrees to retract the latch bolt and then, after opening the door, the operator will turn the roll back clockwise the same distance and withdraw the key. The latch bolt will now be in normal or single throw position.

To hold the latch bolt in retracted or open position, a latch stop 36 is provided. This stop vis provided with a thumb or finger knob 37 wherewith to slide it and at one end, said stop is provided with a lug 38 which, when the stop is moved upwardly, will enter the recess 12 in the head of the latch bolt. The latch stop will be retained in the position to which it may be moved by means of the enga ement of a springress ed pin 39 in one o a pair of notches 40 1n said stop.

Pivotally mounted within the strike or keeper are two dead-locking dogs 41 so disposed that they may enter the recesses 11 and 12 respectively in the head of the latch bolt 9 when the latter is sufliciently projected into thekeeper, thus dead-locking the latch bolt to the keeper and effectually preventing jimmying. When the parts are in unlocked positions or when the latch bolt is amazes in its nonnal single throw position, the dead-locking dogs will be caused, by the action of spring arms 42, to assume the retracted positions shown in Figure 8.

A U-bolt 43 is mounted in the lock casing and provided with rearwardly projecting arms 44 and the forwardly projecting arms 45 of said U-bolt are beveled as. at 46 to engage rounded end portions 47 of the dead-locking` dogs 41 when said U-bolt is projected. 'A bell-crank-lever 48 is pivotally mounted on a pin or post 49 rigid with the casing 1' and the arm 50 of this bellcrank-lever is connected by a link 51 with one of the rearwardly projecting arms 44 of the iJ-bolt 43. The other arm. 52, of the bell-crank lever is provided with an open slot 53 to permit cooperation of the arm 29 of the knob cam 24, with said bell-cranklever.

When the latch bolt is in single throw position and it is desired to dead-lock the latch bolt in the keeper, the operator will turn the knob 23 toward the front of the lock. The arm 29 0f the cam 24 will engage the lever 31; and raise the same out of engagement with the lug 32 on the casing thus releasing the latch carrier 10. The cam arm 29 will next engage the boss 14 on the arm 13 of the latch bolt 9, forcing the latter and the carrier 10 forwardly three-eighths of an inch. The boss 17 at the forward end of the carrier 10 will stop against a lug 54 at the fo'rward end of the lock casing and the full throw of the latch bolt will be one inch, with the recesses in position to receive the dead-locking dogs 41. After the cam arm 29 leaves the latch bolt, the sprin 33 will force the lever 31 down in front o the boss 32 on the casing, thus locking the carrier 10 in the position to which it has been moved. During further travel of the cam arm 29, it will enter the slot 53 of the bell crank, causing the same to turn on its pivotal mounting and transmit motion, through the link 51 to the U-bolt 43. to move'the latter forwardly. Turning ofthe cam 24 will be limited by engagement of the cam arm 27 with a boss 55 rigid with the casing 1 and the cam 24 will be held in position by the action of the spring 26. When the cam 24 is in the posit-ion above described, with the arm 27 bearing against the boss 55, it acts vto dead lock the U-bolt 43,--the cam arm with the arm 28 of the cam 24 and the mechanism will be operated the same with the knob as above described.

In operatin the lock'to move the parts from complete y locked position, as shown in Figures 1 and 2, to normal position wlth the'latch bolt projecting ve-eighths of an inch casing 1, the operator will turn the knob 23 in counter-clockwise direction or toward the back of the lock. The cam arm 29 will enter the slot of the bell-crank 48 and cause the latter to turn and the U-bolt 43 to be withdrawn from the strike or keeper and thus permitting the spring members 42 to force the dead lookin dogs 41 apart and out of dead-locking re ation to the latch bolt. The cam arm 29, after leaving the bell-crank, will engage the lever 31 and raise the same clear of the lug 32 and compress thespring 33 and releasing the ylatch bolt carrier 10. The cam arm 29 will next engage the front of the boss 20 on the carrier 10, forcing the latter, with the latch b olt 9 backwardly. The boss 18 on the carrier will stop against a boss 56 on the casing 1. After the cam arm 29 leaves the carrier, the spring 33 will force the lever 31 down 1n back of the lug 32 on the casing 1 and lock the carrier 10 in position. The knob 23 has now been moved through one-hundredand eighty degrees and if released, will be h eld in this position by the action of the spring 26. The lock is now in normal position.

To perform the same unlocking operation as last above described, with the use of a key, the operator will turn the key clock- Wise through approximately two-hundredand-thirty-iive degrees, when the door may be opened, and then the key will be turned counter-clockwise the same distance and withdrawn, and the latch bolt Will be in single throw position. In operating the key, the arm of the roll-back will engage the arm 28 vof the cam 24 and the parts will be operated the same as when operated by the knob, as above described.

Various changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. The combination with a lock casing and a keeper, of a latchboltv mounted in the lock casing, dead locking dogs mounted in the keeper to receive the latch bolt between them, and a locking bolt to enter the keeper and move said dead locking dogs toward each other and into dead locking cooperation with said latch bolt.

2.Y The combination with a lock casing and a keeper, of a latch bolt 4to enter the keeper and having recesses in opposite faces, spring-retracted dead-locking dogs pivotally mounted in the keeper and positioned to receive the latch bolt between them, and a locking bolt having two members cooperable respectively with the respective deadlocking dogs to force them into dead locking relation to the recessed latch bolt.

3. The combination with a lock casing and a keeper, of a latch bolt to entery the keeper and having recesses in opposite faces, spring-retracted dead-locking dogs pivot-- ally mounted in the keeper and positioned to receive the latch bolt between.- them, a locking bolt having two members cooperable respectively with the respective dead locking dogs to force them into dead locking relation to the recessed latch bolt, and means whereby the locking bolt may be locked with the dead-locking dogs in dead locked relation to the latch bolt.

A4. The combination with a lock casing and a keeper, of a latch bolt, a movable carrier therefor, dead-locking dogs mounted in the keeper and cooperable with the latch bolt to dead lock the same, means for moving said carrier to move the latch bolt to position for cooperation with the dead-locking dogs in the keeper, and means mounted in the lock casing for moving the deadlocking dogs into dead-locking relation to the latch bolt.

5. The combination with a lock casing and a keeper, of a latch bolt, a movable carrier therefor, said latch bolt adapted for movement independently of the carrier, dead-locking dogs mounted in the keeper and cooperable with the latch bolt to dead lock the same, means for moving said carrier to move the latch bolt to position for cooperation with the dead locking dogs in the keeper, and means mounted in the lock casing for moving the dead locking dogs into dead locking relation to the latch bolt.

6. The combination with a lock casing and a keeper, of a movable carrier in said casing, a spring pressed latch bolt associated with said carrier and movable therewith, means for locking said carrier, dead locking dogs in the keeper, means mounted in the lock casing for moving said dogs into dead locked relation to the latch bolt, means for unlocking the carrier and for moving the same and the latch bolt, and means vll) the keeper when said dogs move toward-each other, manually operable means for projecting said latch to position to receive the dead by the carrier and cooperable Withsaid fixed lug to lock the carrier, a bolt to enter the keeper, said bolt being operable to force the dead locking clogs into dead locked relation to the latch, a cam having an arm cooperable with the latch to retract the same, said cam having another arm cooperable with said carrier to move the same and the latch, and means operable by said last-mentioned cam arm to move said bolt.

' 9. The combination with a lock casing 'and a keeper, of s ring-retracted dead-locking dogs mounte in the keeper, a'latch mounted-in the lock casing, manually operable means for moving said latch to position between the dead locking dogs in the keeper, a bolt having two 'arms to enter the keeper, said bolt arms being cooperable with v the dead locking dogs to move them into dead locking relation to the latch, a bellcrank mounted in the lock casing, and a link connecting one arm of said bell crank with saidbolt, the other arm of said bell crank being -cooperable with said manually operable means whereby movement of the latter Will operate through said bell-crank and link to project or Withdraw said bolt.

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

JOHN B. FREYSINGER. Witnesses: 1

FRED K. HEYER, CHARLES A. BERRY.

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