US1489588A - Keyless lock - Google Patents

Description

April 8, 1924. 1,489,588

N. 0. BILLINGS KEYLESS LOCK Filed May 19. 1921 Patented Apr. 8, 1924.

UNITED STATESv NELSON o; iaILLrn'es, or sn'arrnn, vznsnrnoron.

- xnynnss noon.

Application filed May 19; 1921. Serial No. $70,832.

To all whom it may concern:

Be it known that I, NELSON O. BrLLrNos, a citizen of the United States, residing in-the city of Seattle, county of King, and State of.

Washington, have invented certain new and useful Improvementsin Keyless Locks, of which the following is a specification.

My invention relates to door locks andhas for its principal object to provide an improved lock which can be easily manipulated from the insideby latch or bolt knob, which can be operated from the outside by the manipulation of a knob and combination discs,

and which, when the bolt has been held within the lock, has means for automatically tripping the bolt when the door is shut so that the bolt will be automatically moved out into its operating position. v

In order to explain my invention, I have illustrated one form thereof on the accompanying sheet of drawings, which I will now describe.

Figure 1 is a side view of my improved lock with the cover plate removed;

Figure 2 is an edge view thereof;

Figure 3 is a View similar to Fig. 1 without the latch through the bottom, and on which a bolt knob is used;

Figure 4-. is an outside view of the cover plate with bolt latch for moving the bolt; and E Figure 5 is an edge view thereof.

Referring in detail to the drawings, the usual lock housing 1, is provided with the edge plate, 2. The lock bolt, 3, is slidably mounted therein, with a spring a, for normally holding the bolt extended. Pivotally connected to the bolt, is a latch hook 5, having a spring, 6, for normally holding it down, as indicated. A pivoted bell-crank latch, 7, hooks at its upper end under the end of the member 5, as shown, and at its lower end, said bell-crank latch 7 is provided with an extension, 7 which projects through an opening 1*, in the bottom of the housing 1, as shown. A spring 8 normally holds said bellcrank latch in normal locking position. By pressing upwardly on the extension 7 at the bottom of the housing, 1, the lock bolt 3 is moved back into the housing and the door on which the lock is mounted can be opened.

A second pivoted member, '9, having a T-shaped end, is mounted in the housing, with its T-shaped end resting on a plurality of discs, or tumblers, as 10, having notches 10 adapted to be moved into register with each other, whereupon the T-shaped end of said member 9, drops into said notches, as shown 1n the drawings. When .saidmember 9 is raised to ride on the edges of said discs 10,'by turning said discs in a Well known manner, said member 9 lifts the memberfi',

out of hooked engagement with'the upper end of the member 7.

lifts one end of an angle member, 312, pivoted 1n the frame'or hous1ng, as shown. This member is provided witha notch,12 adapthold said bolt in the housing. Mounted, in

the upper part of the housing is a plunger rod, 13, extended through a bracket, 14L, and

provided on its outer end with a roller, 15, adapted when the door is closed, tobe pressed inwardly into the housing. The inner end of said rod engages and rocks the member 12 in such a way as to lift thejlower arm thereof and thus free the head of the pin 11, and permit the-lock bolt '3 to be thrust outwardly by its spring 1. The rod 13 is provided with a spring, 16, which normally holds it in the position indicated and yet allows it to be moved inwardly when the door is closed, as will be readily understood. A shiftable latch member 17, is mounted in the edge of the lock, and has an inner arm, 17, adapted to engage in a notch, 10 in the disc 10, to prevent said disc from being turned in one direction, or to serve as a stop, when said arm is down. A tension spring 17 is mounted on said member to hold it in adjusted positions. I V

Pivotally mounted in the bolt, is a dog, 18, shown in dotted lines, with its lower corner ar .FFIcE.

The raising ofthe member 5, lifts a pin, 11, through-the innerend of the bolt 3, and this pin 11, in turn,

pivoted on the pin, 19, in the vbolt, and hav- 1 ing on its pivoted end a hook, 18 to which is connected one end of the spring 6, the other end of which connects to theniember 5, as

shown. The member 5 is double member,

between the sides of which said dog 18 fits loosely. The upper fork of the dog, 18, bears against the bolt, as indicat8d While .55

the member 5 in Fig. 1, in its disc engaging end, as will be clear. In this form of lock, the latch through the bottom of the housing is omitted, and instead, I provide a small knob, 20, Figs. 5 and 4, the stem of which is connected with the bolt, at 21, through a slot, 22, in the inside cover plate, P, Fig. 4:, whereby the locking bolt 3- can be moved inwardly, into unlocking position, by moving the small knob 20 to the right, as will be clear.

Thus I have provided in combination with the bolt of a door lock, means for holding the bolt drawn into the lock, with means for automatically releasing it when the door is closed, and I have also provided in combi nation with said bolt, means for moving it manually from the inside, as well as means for moving it in the usual way by means of a knob combination. This latter means being old, is not shown in detail.

lVhat I claim as new and desire to protect 1s,-

1. In a lock of the character referred to, a housing, a bolt slidably mounted therein, a spring for normally holding said bolt extended, a member pivoted to said bolt for moving it into said housing, means manually operable on said member for moving said member and said bolt, movable latching means carried by said bolt and cooperating with latching means in said housing for automatically holding said bolt drawn into said housing, means projecting from said housing for autoinsases engaged by the upper end of said pin, for;

holding said bolt withdrawn into said cas ing.

3. In a lock of the character described, a casing, a bolt slidable therein, an arm pivoted at one end to said bolt, and moving therewith,

manually operable means for pulling on said arm to move said bolt, said manually operk able means being also adapted to lift the free end of said arm, a pin through said bolt positioned to be lifted by said arm when lifted, latch means in said casing adapted to engage with the upperoend of said pin for holding said bolt in said casing, and means for automatically tripping said latch means to release said 'pin' and bolt.

Signed atvS'eattle, King County, Washington, this 16th day of April, 1921.

NELSON o. BILLiNcs.

Witnesses:

C. J. SMITH, M. B. PHILLIPS.

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