US2444819A

US2444819A - Door lock

Info

Publication number: US2444819A
Application number: US574920A
Authority: US
Inventors: John B Freysinger
Original assignee: Sargent and Co
Current assignee: Sargent Manufacturing Co
Priority date: 1945-01-27
Filing date: 1945-01-27
Publication date: 1948-07-06
Anticipated expiration: 1965-07-06

Description

.July 6, 194s.

J. B. FREYSING ER DOOR LOCK 2 Sheets-Sheet l Filed Jan. 27, 1945 July 6, 3948? B. FREYSINGER 2,444,819

DOOR LOCK Filed Jan. 27. 1945 2 Sheets-Sheet 2 .ing lever ofthe knob-dogging mechanism; and

Fig. 10 is Aa detail elevationalview of the pushbutton mechanism mounted in. the knob mechanism. To illustrate a preferred embodiment of om invention, I have shown a door lock comprising a main case I of tubular shape; This case is closed except at its ends, and may be formed as a unitary seamless tube, if desired. A front plate II is secured to the tubular .case I0 adjacent.

the front end of the latter so as to project outwardly therefrom, as shown in Fig. 5. This plate may be secured to the body of the case by means of ears I2 formed on .the latter, these ears being secured in `recesses I3 at the front of the plate. The plate I I is provided with openings I4 for fastening'members, such as screws or the like, and withraL central opening I5 which registers with -the interior diameter of the tubular case I0.

Within the front portion of the case IIJ is slidably and rotatably receiveda bolt case I6, which, Las showmis of cup-shaped form having a rear or bottom wa`11I.1, and this case fits snugly. within thema'in case IIlvagainst stops I'Ia struck from themain case II). Slidably mounted within the bolt case is -a latch bolt. I8 spring-pressed to protracted position by the usual spring I9, which acts against the bolt'at its `front end and against the wall I1 of the bolt case at its rear end, Secured tothe bolt I 8 and extending r rearwardly therelfrom 'is'i a bolt stem 29 havingon its rear end a crosshead 2I,.the stem'and crosshead extending through an opening 22 in the rear wall I1 of the` bolt case. Also slidablymounted in the bolt case is a guard bolt 23 held in protracted position by 'a'spring 24 acting against the 'member I1, the Ibody of'this guard bolt being provided with an annular recess orv channel 25 to receive the laterally turned forked end 26 of a dog-controlling slide 21. As shown in Fig. 2, this slide is disposed closely against the bolt stem 20, and guided Athereon by av pin 28 extending into a Aslot 29 on the slide 21. 'f

-The slide 21 is provided witha laterally turned lug 30 adapted to engage the toe 3i of a dogging lever 32fpivoted'on the bolt stem at 33. this doggingleverbeing provided at `its upper edge with a recess or notch 34 having a forward abrupt edge 35 designed to engage the edge of the opening22 in vorder to dog the latch boltl against retractionj `As shown in Fig. v3, the laterally turned lug 30 stands under the toe 3| of the dogging lever `3'2 and holds the edge 35 of the recess 34 out of contact with the edge of the opening 22. However, whe'n the guard lever is retracted by contact ,with the strike plate, andthe slide 21 is moved rearwardly, thedogging lever will be released by the member 3l! and will be moved in a counter-v hereinafter, is designed to be engaged by the bolt 4 actuator to swing the lever 32 in a clockwise direction and thus release the dogging lever 32 from the member I1 so that the bolt may be retracted. A face plate 40, shown more especially in Fig. 4, is designed to be disposed flatwise against the plate II. This plate is provided with hollow lugs or short sleeves 4I designed to enter the openings I4 to hold the front plate' 40'against rotation, and to receive screws to secure the lock to the door. It will be seen that, when these screws are removed, the face plate 40 may be moved slightly vto the left, as shown in Fig. 3, and disengaged from the front plate II of the main case of the lock, or, alternatively, it may be slipped completely oir the bolt I8. As shown in Fig. 4, the

face plate 40 is provided with an opening 42 of irregular shape to snugly receive the main latch bolt IB and the guard bolt 23, so that, while these bolts reciprocate freely through the face plate, they are held against rotation relatively thereto. When the face plate issecured to the front plate II, it will, as shown in Fig. 3, hold the bolt case I 6 within the main case, as the edges of the opening 42 project over the front` edge of the bolt case I 6, and it also limits the protraction of the bolt I8, as the latter is provided with a shoulder 43 (Fig. 2) which abuts a portion of the face plate, This, however, is not relied upon to hold the bolt I8 within the bolt case, as the stem 20 of the bolt is provided with an outwardly projecting pin 44 slidably received in a slot 45 formed in the bolt case I6, the length of the slot limiting the movement of the bolt I8. This will hold the bolt and associated parts in assembled position in the bolt case I6, as it will be seen that the rear portion or tail 46 of the guard bolt 23 also abu the head of the latch bolt,

` Mounted in the case I0 rearwardly of the bolt oase I6 is the mechanism for retracting the latch bolt and the mechanism for clogging one of the knobs, usually the outside knob, against movement. This mechanism comprises a retracting yoke consisting of a yoke head 48 and spaced rearwardly projecting legs 49. These legs may be provided with outwardly turned ends 50 to engage the wall of the case and `guide the retractor in its movements, these ends being formed on laterally projecting portions 5I designed to be engaged by inner and

outer rollbacks

52 and 53, respectively, these rollbacks being secured upon

hubs

54 and 55.

The hubs 54 and 5-5 are rotatably mounted respectively in supporting

members

56 and 51, these members being secured at their lrear ends at 58 and 59 to the rear closure member 60 of the case. The

members

56 and 51 extend forwardly from the rear of the case and are provided at their forward ends with outwardly turned slotted portions 6I and 62, the ends of which bear on the wall of the case I0, as shown, for example, in Fig. 7.

The head 48 of the retractor may be reinforced by a U-shaped member 64, and this mem- `ber and the head 48 are provided with keyhole slots 65, shown more especially in Fig. 5, the longest dimension of this slot being sufficiently great to receive the crosshead 2| and rear end of the lever 32 when the crosshead is turned to a proper position to register with the longer dimension of the slot. This, as shown in Fig. 4, will be approximately an angle of 45 with the vertical. When the crosshead 2I is inserted through the slot and turned through an angle of approximately 45, it will be engaged with th retractor so as to be actuated thereby.

l Whetheror notfsucha lock is provided will, of course, depend upon the use to which the door is put. In the case of a front door lock, for example, as is the'type of lock herein shown, a keyoperatedlock is usually desired,

iAsillust'rated, .this outside mechanism comprises a rose H15 in which is rotatably mounted a knob shank IBB of theoutside knob |01. Mounted within the knob is a key-operated lock IDB having la key barrel 109. To the knob shank is secured. the outside spindley H of polygonal shape, which is adapted to enter a similarly shaped opening in the outer rollback hub 55. This spindle is hollow, and mounted therewithin -is a shaft lll secured to the key barrel |09, this shaft HI having a hat reduced end portion H2 disposed in a slot H3 `in the inner spindle 90.

Thus itwill be seen that when the outer knob |01 is turned, the spindle H0 is operated to actuate the outer rollback 53 and retract the bolt. However, when this outer rollback -is dogged against movement by the dogging slide T0, the key cylinder or key plug 109 may be rotated by the key, this serving to rotate the shaft Hl independently of the spindle H0, which, through the extended end II2, will rotate the inner knob spindle 90 and thus retract the bolt so that it may' always be retracted by a key from the outside of the door.

It will also be understood that the shaft III, which must always turn with the inner spindle 90, is connected tothe key barrel by a lost-motion connection. I have not deemed it necessary to illustrate this connection as it is old in the art.

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 modication and variation within the spirit of the invention and within the scope of the claims.

What I claim is:

l l. A lock .comprising a main case open at its forward end and having bolt-retracting mechanism therein, a bolt case slidably received in the open end of the main case and having a bolt therein, means connecting said bolt with the bolt-retracting mechanism, said means comprising a stem on the bolt anda member on the retracting mechanism having an opening to rotatably receive said stem and means for securing said bolt case against removal from the main case.

2. A lock comprising a main oase open at its forward end and having bolt-retracting mechanism therein, a bolt case slidably received in the .open end of the main case and having a bolt therein, means connecting said bolt With the bolt-retracting mechanismsaid means comprisinga stem on the bolt and a member on the retracting mechanism having an opening to rotatablyreceive said stem and means for removably securing said bolt case in the main case in either of two positions reversed with respect to the longitudinal dimension of the bolt.`

`3. A lock comprising a main case open at its forward end and having bolt-retracting mechanism therein, a bolt case slidably received in the open end of the main case and having a bolt therein, means connecting said bolt with the bolt-retracting mechanism, and a face plate securedto the main case and retaining the bolt vcase therein.

4. A lock comprising a main case open at its forward end and having bolt-retracting mecha- Anisrn therein, a bolt case slidably received in the l 'open end-of' the maincase and having. a bolt therein, means connecting said bolt with the bolt-retracting mechanism, said means comprising a stem on the bolt and amember on the retracting mechanism having an opening to rotatably receive said stem, said -bolt case being rotatably mounted in the main case, and means` for holding said boltcase against rotation.

v5. A lock comprising a main case of tubular shape open at one end, bolt-retracting mechanism therein, a bolt case slidably received in said main case, a bolt slidably mounted in the bolt case and engaged with said retracting mechanism, and means for holding said bolt case against movement in the main case, said means comprising a face plate secured to the main case.

6. Ay lock comprising a main case of tubular shape open at one end, bolt-retracting mechanism therein, a bolt case rotatably received in said main' case, a bolty slidably mounted in lthe bolt case and engaged with said retracting mechanism, and means for holding said bolt case against movement in the main case, said engagement permitting relative rotation of the bolt and retracting mechanism whereby when said holding means is removed'the bolt may be reversed about the longitudinal axis of the main case Without disconnecting the bolt from the retracting mechanism.

7. A lock comprising a unitary main case of tubular shape open at the end, bolt-retracting mechanism therein, a tubular bolt case slidably received in the main case through the open end thereof, a bolt slidably mounted in the bolt case and secured against removal therefrom, means connecting said bolt with said retracting mechanism for operation thereby, said bolt case and bolt therein being reversible as a unit about the longitudinal axis ofthe main case, and means for retaining said lbolt case against movement in the main case in either of two positions reversed with respeci; to such axis. Y y

8. A lock comprising a unitary main case of tubular shape open at the end, bolt-retracting mechanism therein, a tubular bolt case slidably received in the main case through the open end thereof, a bolt slidably mounted in the bolt case, means connecting said bolt with said retracting mechanism for operation thereby, said bolt case andbollt therein being reversible as a unit about the longitudinal axis of the main case, and means for retainingjsaid bolt `case against movement in the main case in .either of two positions reversed with respect to such axis, said means comprising a face plate removably connected to the main case and non-rotatably engaging the bolt.

9., A lockcomprising a unitary main case of tubular shape open at the end, bolt-retracting mechanism therein, a tubular bolt case slidably received in the main case through the open end thereof, a bolt slidably mounted in the bolt case, means connecting said bol-t with said retracting mechanism for operation thereby, and means for `retaining said bolt case against movement in the main` case, said retracting mechanism comprising a retractor element, rotatable rollbacks engaged therewith, and supporting mechanism for holding said parts in assembled relation independently of said main case.

10. A lock comprising a unitary main case of tubular shape open at the end, bolt-retracting mechanism therein, a tubular bolt case slidably receivedin the main case through the open end thereof, -a bolt slidably mounted in the bolt case, means. connecting said bolt with said retracting mechanism for operation thereby, and means for retaining said bolt case against movement in the main case, said retracting mechanism comprising a retractor element, rotatable rollbacks engaged therewith, and supporting mechanism for hold ing said parts in assembled relation independ-v ently of said main case, said retracting mechanism being slidably received in the main case in assembled relation, and means for securing said, mechanism in the case.

11. A door lock comprising a tubular case open at both ends, a bolt mechanism slidably received in one end oi said case, said mechanism comprising a supporting element and a bolt slidably car-i ried thereby, means for retaining said bolt mechansm in the case, retracting mechanism also slidably received in said case through an end thereof, said retracting mechanism comprising supporting means, rollbacks rotatably carried thereby, and a re'tracting member operatively engaged by said rollbacks, said retracting mechanism being received in said case in assembled relation, means for detachably -connecting said bolt to said retracting mechanism after the latter has been assembled in the case, and means for retaining said retracting mechanism in the case With said retractor operatively connected to the bolt.

12. A lock comprising a unitary main case of tubular shape open at the end, bolt-re'tracting mechanism therein, a tubular bolt case slidably received in the main case through the open end 10 thereof, a bolt slidably mounted in the bol-t case, means connecting said bolt with said retracting "mechanism for operation thereby, means for retaining said bolt case against movement in the main case, said retracting mechanism comprising a retractor element, rotatable rollbacks engaged therewith, and supporting mechanism for holding said .parts in assembled relation independently of said main case, said retracting mechanism being slidably received in the main lcase in assembled relation, and means for securing said mechanism in the case, said retaining means for the bolt mechanism being disconnec-tible, and said bolt mechanism being rotatable in the main case when said retaining means is disconnected to reverse the position of the bolt With respect to the longitudinal axis of the case.

JOHN B. FREY-SINGER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS