US1184489A - Door-lock. - Google Patents

Description

M. F. RICHARDSON.

DOOR LOCK.

APPucATxoN FILED luLv 30. 1915.

2 SHEETS-SHEETI Patented May 23,1916.

Nl/E/VTOR A TTRNEYS m J W W P F. M

WITNESSES IVI. F4 RICHARDSON.

DOOR LOCK.

APPLICATION FILED JULY 30. 1915.

Patented May 23,1916.

a w a M )mamas INTI" /l/fwzmam@ @n ,Humm I WITNESSES i a citizen of the United States,

IVIARK F. RICHARDSON, F LEONI, NEW JERSEY.

DOOR-LOCK.

To all whom t may concern:

Be it known that I, MARK F. RICHARDSON, and a resident of Leonia, in the county of Bergen and State of New Jersey, have inifented a new and Improved Door-Lock, of which the following is a full, clear,

The invention relates' to door locks, such 'I as shown and described in the Letters Patvtion when the door is open.

ent of the United States, No. 1,120,538, granted to me on December 8, 1914.

The object of the present invention is to provide a new and improved door lock of the type referred to, and in which the bolt automatically swings back into folded position within the door casing on opening the door, thus forming no undesirable projec- Another object is to permitof unlocking the lock and opening the door on pressure from the insidewhether the lock is in locked.

position from the outside or not, and to permit of locking thel doorfrom the outside or unlocking it by key-controlled means.

- In order to accomplish the desired result, use ismade of a bolt mounted to swing, and

a spring pressing the bolt to swing the latter` yinto retracted folded position on opening the door and holding it in the folded position during the time the door is open. Use is also made of a. keeper mounted to swing on the door casing and pressed by a spring to hold the keeper in the path of the bolt at the time the door is open, ving adapted to engage the folded bolt and swing the same into coacting locking position with the keeper on closing the door.

A practical ,embodiment of the invention isv represented inthe accompanying drawings forming a part of this specification, in which similar characters of referenceindicate corresponding parts in all the views.

YFigure 1 is a, sectional side elevation of the door lock -as applied and with the bolt held in locked position by key-controlled means; Fig. 2 is a similar view/ of the same with the key-controlled meansin unlocking position; Fig. 3 is a sectional plan view of the same on theline 3-3 of Fig. l; Fig. 4 is a similar view ofthe same on the line 4 4 of Fig. 2; Fig. 5 Iis a -cross section of the 4 same on the line 5-5of Fig.,1; Fig. 6 is a sectional plan view of the same with the doorl partly open and the bolt in foldedposi.- ar view of the same Specification of Letters Patent.

and exact description.

, keeper caslng E mortised Iin the said keeper be- Patented May 23, 1916.

Application led. .Tuly 30, 1915. Serial No. 42,748.

tion of the inner face of the lock applied to the door and door casing.

` The door A is provided with a mortise for the reception of the lock casing B in whichis mounted a vertically disposed pivot C carrying a bolt C adapted to engage with its freeend a keeper D having a vertically disposed pivot D journaled in a the door casing rlhe pivot C of the bolt C is pressed on by avtorsion spring C2 to normally hold the bolt C in folded inactive position within the lock casing B, as plainly indicated in Fig. 6. The keeper Dis pressed in an outward direction by a spring lD2 and the free end of the keeper D is provided with a hook D? adapted to project into the path of the free end of the bolt C at the time the door is open (see Fig. 6), so that when the door is closed the free end of the bolt C engages the hook D8, which latter imparts an `outyward swinging motion to the bolt C to Aswing the latter into coacting locking positionf with the keeper D, which latter is swung inward against the tension of the spring D2 by the inner edge of the casing B.

The' heel of thebolt C is provided with a notch C3 adapted to be engaged by one endof alevei' F pressed on by aspring Cr fulcrumed at F in thecasing B. The other end of the lever F is adapted to be engaged a plate H pivoted. at its lower end at Hzlon the inner face of the door A, as plainly illustrated in Fig. 5. The upper free end of the plate H engages guide pins H3 held on the door A, and the plate H is adapted to swing into a recess A formed in the inner face of the door A; When the door A is in closed and locked position (see Figs. 2 and 4) and pressure is exerted on the plate H swings toward the door and itspin H imparts a swinging lmotion to the lever F to disengage the free end thereof from the notch C3 to release the bolt C. rIhe pressure exerted against the plate H causes an outward opening movement of the door A, andl as the blt C is released it is swung into folded position by theaction of its spring C2. Thus Ywhile the door is open the bolt `then the latter into locking position by the keeper D, as`

'In order to lol k the A I. ing from the v C is held in retracted bolted position, as

indicated in Fig. 6. It willbe noticed that by\ the arrangement described the bolt C forms no undesirable projection on the free -edge of the door A during the time the latter is open. When the pressure on the plate H isl released then the spring G returns the lever F to its normal position so that the lever rengages the notch Cs when the door is closed and the bolt C is swung outward approved construction, and extending to the l [outer face of the door A. By the use of this key-controlled lock Kvthe rollback J i the latteris swung 4'5" on a push against the plate l thelever I is adapted to be pressed bythe tion shown in Figs. 2

V F is free to be actuated by either the pin iso ' the parts are in 5 2 and 4 and the key-controlled lock K is actuated then the lever I is swung into encan be turned to impart a swinging motion to the lever I to engage theI upper cam .end I? of the lever Iwith the inner' end of the lever F, orto move it out of engagement with the same, as will be readily understood by reference to Figs. 1, 3 and 2, 4.' When the lever I is swung to engage the cam end I3 with the inner end ofthe lever- F, then into inactive position relative to the bolt C, that is, is moved out of engagement with the notch C8 to allow the bol C When outside or a push from the inside.

the lever I is swung out of engagement with o the lever F then the latter moves to, normal activeposition by the action of its sprin Gr to engage theA notch C8- of the bolt and thus hold the latter in active outer position so that the door cannot be opened on a pull from the outside but H from the inside, as previously explained. The top of free vend of a spring L held in the casing B to prevent accidental shifting of the lever 'I at the time the cam end I8 is 1n engagethe inner end of the lever F, as

merli'J with shown in Figs. 1 and 3. When the several parts are in the posiof the plate H or by the key-controlled lever- I. When a pressure is exerted against the plate H, the vpin H swings the lever outV of engagement with the-notch CE4 .to release the bolt C and at the same time the door A is pushed. open to allow the bolt C to swing into folded position by the action of its spring C2. In a like manner when the position shown in Figs.

to swing into Jfolded position on f vthe opening ofthe door-by va pullpfro'm the to swing,

, door and the door casing,

it can be opened liirst lever to swing 'gagement with the said bolt to allow the latand 4, then the leverl gagement with the lever F to actuate the latter to release the bolt C to allow of opening the door by a pressure from the inside or by a pull on the outside 'of the door by a key or a knob or a similar device.

It is understood that when the parts are in the position shown in Figs. 2 and 4, the door cannot be opened from the outside unless thekey-controlled lever I is first swung into engagement with the lever F, as pre-u viously explained. K

Having thus described my invention, I claim asnew and desire to secure by Letters Patent:

1. In a door ook, the combination with a the said bolt to swing the latter into rel tracted position on opening the door andl holding it in the retracted position during the time the door is open, and a pivoted spring pressed keeper having a hook at its free end adapted to engage the free' end of said retracted bolt on closing the door to swing the bolt into active position relative to the keeper.`

2. Ina door lock, the combination with a spring-actuated keeper mounted to Jswing in the door casing and having a hook at its ,free end, a spring-actuated boltmounted to swing inthe door. and held in closed position by its spring when the door is open,

the -said keeper having its free hook end 'and the bolt at the time the door is open to engage the bolt and swing the latter into open eoactive locking position with the keeper on closing the door.

3'. A door lock, comprising a bolt mounted a spring pressing vthe said bolt to swing it into folded position relative to the a lever adapted to engage the said bolt to hoold it in active position, a second lever adapted to engage" the the said lever out of enter to swing into folded position-by the ac.- tion of its spring on opening the door, and key controlled means on the outer side of the door Iand controlling the said second lever. 7 y

4. A door lock, comprising a bolt mounted to'swing, a sprin pressing the said bolt to swing it into fol edposition relative' to the doorandthe door casing, a lever adapted to engage the vsaidbolt to hold it in active position, a rocking end and a cam to swing the lever out oi engagement with the said bolt to allow the latter to swing into folded position'by the action of its spring on openingthe door, and key-controlled means controlling the said lever.

5. A door lock, comprising a boltmounted to swing, a spring pressing the said bolt to lever having aflork at onel at the other en d, the said .cam being adapted to engage the said lever ioo `the said bolt to allow swing it into folded position relative to the door and the door casing, a lever adapted to engage the said bolt to hold it in active position,'a rocking lever having a fork at one end and a cam at the other end, the said cam being adapted to engage the said lever to swing the lever out of engagement with the latter to swing into folded position by theaction of its spring on opening the door, key-controlled means controlling the said lever, and a spring pressing the cam end of the lever to hold the latter against accidental movement at the time the lever engages the bolt.

6. A door lock provided with a keeper mounted to swing and having a hook at its free end, a spring pressing the said keeper to project its free end beyond the door easing during the time the door is open, and a spring-actuated bolt mounted to swing in the door and held in folded position by the action of its spring when the door is open, the said keeper hook being in the path'of the free end of the folded bolt and adapted to engage the face of the bolt at its free end A the door and the door casing, a springpressed lever adapted to engage the said bolt4 to h old it in active position, a rocking lever having means at its upper end adapted to engage the said first-mentioned lever to swing the same out of engagement with the bolt to allow the latter to swing into folded position by the action of its spring on opening the door, means on the inner face of the door for moving` the first-mentioned lever out of engagement with the bolt, and keycontrolled means on the outer face of the door .and controlling the said rocking lever. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

" MARK F. RICHARDSON. Witnesses:

M. BRoUGHToN, S. I. BULLAGE.

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