US1209383A - Lock. - Google Patents

Description

J. BELLEY.

LOCK.

APPLICATION FILED AUG. I5. 1916.

Patented Dec. 19, 1916.

2 SHEETS-$HEET 1.

INVENTOR.

VMATTORNEY J. BELLEY.

LOCK. APPLICATION FILED AUG.I5. 1916.

1,209,383 Patented Dec. 19, 1916.

2 SHEETSSHEET 2.

IN V EN TOR. WITNESS ENT -FI@E.

J OHN IBELLEY, OF PASSAIG, NEW JERSEY, ASSIGNOR OF ONE-HALF TO PAUL MILLER, OF NEWARK, NEW JERSEY.

LOCK.

To all whom it may concern.-

Be it known that I, JOHN BELLEY, a citizen of the United States, and a resident of Passaio, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Locks, of which the following is a specification.

The present invention relates to looks or latches for securing doors and other parts.

One of the objects of the invention is to provide, in a latch of simple construction, means whereby the bolt may be held in its projected position when the door is closed and in retracted position when the door is open, the bolt being shot into place by the operation of closing the door.

Another object of the invention is to produce a latch, the bolt of which is combined with a dead-locking member that can be actuated from the outside by a key and from the inside by a slide.

A further object of the invention is to devise a latch or look that can be manufactured on a commercial scale, or in other words one which is not so difficult to pro duce as to be beyond the reasonable cost of such an article.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement, and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims without departing from the spirit or sacrificing any of theadvantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which:

Figure 1 represents a view of the inside of a door and j amb provided with a latch constructed in accordance with this invention; Fig. 2 is a similar view, partly in section, the inner escutcheon plate being removed to more clearly show the interior construction of the latch; Fig. 3 is a section taken on line 3-3 of Fig. 2; Fig. 4 is ,a section taken on line 4-4 of Fig. 2; Fig. 5 is a view similar to illu trated in Fig. 2 with Specification of Letters Patent.

Application filed August 15, 1916.

Patented Dec. 19, 1916.

Serial No. 115,000.

the dead-locking member in its operative positlon; Fig. 6 is a view similar to that shown in Fig. 4 with the elements in other positlons; Fig. 7 is a vertical longitudinal section taken through the bolt casing of the latch; Fig. 8 is a section taken on line 88 of Fig. 7 Fig. 9 is a section taken on line 9-9 of Fig. 7 and Fig. '10 is a perspective view of the sliding bolt of the latch.

In the drawings, the numeral 11 indicates a'latch casing, which is of tubular configuration, its front end 12 being open and its rear end 13 closed. The front end of the casing is provided with a flange 14, having holes 15 extending therethrough. The casing is inserted into a cylindrical bore 16 in the door 17 said bore extending horizontally in parallel relation'to the inner face of the door. The flange 14 is disposed in a suitably shaped recess 18 in the door, said recess being formed in that edge of the door which abuts against the door-jamb 19. The casing is held within the bore by screws 20, passing through the holes 15 in the flange 14. In the casing 11. is slidably disposed a cylindrical latch bolt 21, fitting snugly the said casing. This bolt is provided with a lug 22, projecting through a longitudinal slot 23 in the'casing and through an aperture 24 in an actuating lever 25. This lever is disposed within a mortise 26 in the door, and is carried by a knob-spindle 27, that is provided with a substantially square portion, extending through a similarly shaped opening 28 in the actuating lever. The knobspindle'is disposed at right angles to the longitudinal axis of the latch casing 11, extends through the door and also through escutcheon plates 29 and 30. Knobs 31 are associated with the spindle for the wellknown purpose. The outer escutcheon plate, that is plate 29, has, preferably, made integral therewith screw-threaded nuts 32, which are located in recesses in the outer face of the door, and with these nuts mesh those of screw bolts 33, that extend through the inner escutcheon plate 30, their heads 34 abutting against the inner face of the last named escutcheon plate..

In the casing 11 is arranged behind the bolt 21 a spring 35, which has a tendency to project the said bolt into a keeper 36, located within a recess 37 in the door-jamb. For the purpose of keeping the bolt in its the said detent into a notch 41 in the casing,

thereby bringing it in front of the bolt 21 when the latter is retracted and keeping the said bolt in such position. The detent has an extension 42, which is, when the door is in its closed position, located within the recess 18, but is adapted to be projected 5 through a slot 43 in the door beyond the outer face of the latter to strike against a ledge 44 upon the jamb 19, for a purpose hereinafter to be fully described.

WVith the actuating lever 25 is adapted to 25 cooperate a dead-locking member 45, that is slidably mounted upon the escutcheon plate and is disposed within the mortise 26 in the door. This dead-locking member-is. attached to a pin 46, which projects through 25 a vertically arranged slot 47 in the escutcheon plate 30 and carries on its outer end a plate 48, serving as a guide for the dead locking member. The free end of the pin is made in the form of a knob 49, to facili- 30 tate the operation of the dead-locking mem ber. In its inoperative position, the deadlocking member is held out of the path of the actuating lever 25, as clearly shown in Fig. 2 of the drawings. If it is, however, shifted downward, it abuts against the said actuating lever and prevents the latter from being oscillated by the aid of the knobs 31 For the purpose of operating the dead-locking member from the outside of the door, a key is used. This key is inserted through a keyhole 50 in the escutcheon plate 29, said keyhole being in alinement with a transverse recess 51 in the door. The bit of the key is adapted to engage the dead-locking member 45, which is provided for this purpose with shoulders 52. In inserting the key, it's pin reaches into a hole 53 in the escutcheon plate 30. lVith this hole is associated a keyhole guard 54, comprising a plate that is pivoted at 55 to the escutcheon plate 30 and provided with a thumb-bit 56. lVhen this guard abuts against the plate 48 (Fig. 1'), the key cannot be inserted into the lock. From the inner face of the'es- 55 cutcheon plate 30 project into the mortise 26 studs 57, corresponding to the notches in the key-pit and serving to prevent a turning of an improper key.

The operation of this device is as follows: hen the door is in its closed position, the detent 38 is in the position shown in Fig. 4 of the drawings, in which its extension 42 abuts against the ledge 44 of the door-jamb, holding the spring 40 compressed. If the dead-locking member 415 is in its inoperative position (Fig. 2), the bolt 21 can be retracted from the keeper from either side of the door by turning the respective knob 31 in the proper direction. When the bolt has been retracted and the door opened, the spring 40. forces the detent into the notch 41 in the casing 11 (Fig. 6), thereby keeping the bolt retracted. In closing the door, the extension 42 strikes against the door-jam with the result that 7 the detent is unseated from the notch 41 in the casing (Fig. 2), permit-ting the spring 35. to. act and to, project the bolt into the keeper.

The dead-locking member may be brought 0 into its. operative position (Fig. 5) from the inside of the door by taking hold of the knob 49 and shifting it downward as far as the slot 47 will permit. If the parts are in these positions the door can be opened 35 from the outside by the use of a proper key only. In turning this. key its bit is brought into engagement with one of the shoulders 52 of the dead-locking member raising the latter as its rota-tion is being completed. After this the door is opened in the manner above described. If it is in,- tended to prevent the insertion of a key into the door, the keyhole guard 54 is brought into the position shown in Fig.v 1 of the 5 drawings. The dead-locking member is adapted to be brought intoits operative position from the outside of the door by turning the proper key in a direction opposite to the one in which it is rotated. in unlocking the door.

What I claim is:

1. In a latch, the combination with a casing, of a spring-actuated bolt therein,

a knob-spindle oscillatably mounted in proximity of said casing, an actuating lever carried by said spindle and. pivo-tally con- 7 nected with said bolt for retracting the same, a spring-pressed detent extending in a plane at right angles to the longitudinal V axis of said; bolt for holding the latter retracted against the act-ion of the spring cooperating with said bolt, said detent having an extension adapted; to project beyond one of the faces of the door and to strike 15 against the door-jamb, wherebysaid detent is disengaged from said bolt upon closing the door, a dead-locking member shiftably arranged upon, the door ada tied to be brought into contact with said lgver to prevent; a motion of the. latter, said member having shoulders adapted, to be engaged by a key from the outside of the door, and

a knob upon the inner face of the door for manually controlling said member from the 25 inside.

2. Inv a latch, the combination" with a casing, of a spring-actuated bolt;therein, a lmob-spindle oscillatably mounted in=proxim tyof; said casing. as M lei g, e er 13o carried by said spindle and pivotally conside of the door, and a knob upon the inner nected with said bolt for retracting the same, face of the door for manually controlling a dead-locking member shiftably arranged said member from the inside. 10 upon the door adapted to be brought into Signed at New York, in the county of contact With said lever to prevent a motion New York, and State of New York, this of the latter, said member having shoulders 18th day of July, A. D., 1916.

adapted to be engaged by a key from the out- JOHN BELLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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