US1578779A

US1578779A - Refrigerator-door lock

Info

Publication number: US1578779A
Application number: US733401A
Authority: US
Inventors: Alfred E Titus
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-08-21
Filing date: 1924-08-21
Publication date: 1926-03-30
Anticipated expiration: 1943-03-30

Description

March 30 1.926. 1,578,779

A. E. TITUS v REFRIGERATOR noon ock Filed August 21. 1924 'ummn w 7 *7 /5 M 6 H a Patented Mar. 30, 1926.

UNITED STATES, PATENT OFFICE- ALFRED E. TITUS, or 'rmmron. new JERSEY.

REFRIGERATOR-D903 LOCK.

Application filed August 21, 1924. Serial Hm. 733,401.

' is simple, inexpensive to manufacture, du-

rable and efficient.

The further object of my invention is to provide such a. lock which may be operated from within as well as from without on refrigerators; with these and other objects in view my invention consists of the parts and combination of parts as will be hereinafter more fully set forth.

In the drawings:

Figure l is a front elevation of a portion of a refrigerator structure, including the door, with my improved lock in position.

Figure 2 is a top plan view of Figure 1.

Figures is a detailed view.

The reference numeral 1 designates a refrigerator structure having a door 2 of suitable construction. Secured to the wall of the refrigerator structure adjacent the free end of the face 4 of which is of cam like configuration at the base of which is a seat 5 in which the end of the bolt of the lock is firmly seated against accidental misplacement when the door is in closed position. .The lock comprises the base member, or plate 6 having suitable screw openings through which the screws 7 pass to secure the plate to the. face of the door. Extending from this plate are lugs 8 and 9 which, as shown in Figure 2, are at right angles to the base plate, said lugs being perforated to permit of the bolt 10 sliding through after explained. A roller 11 is'pivoted in a recess formed in one end of the bolt while the. other end of the bolt is forked as at 12 forming an elongated recess in the outer end of which is journalled a roller 13. A

'coil spring 14 is secured around the bolt 10 between the lugs 8 and 9, said bolt having a pin 15 which abuts one end of the spring 14 whereby on movement to the right of the bolt 10 the spring is compressed between door is a. keeper 3, the operative.

them as will be hereinsaid pin 15 and lug 9' as will be readily derstood. I shall refer to the connection, or engagement between the end of the spring and the pm 15-as anchor connection.

The lug 9 is provided with a lug 16 ex- 3 tending from the top thereof and at right. angles thereto, which lug is provid'edwith a recess 17 in which the operating-handle 18 is mounted on the pivot19i.

The operating handle 18. has an arm-.20 which terminates at its one end in a flat portion 21 whichis positioned in the recess 17 of the lug 16,-said flattened portion eon tinuing in its "normal position projecting; into and operating in the recess-12f the right hand end of the bolt IOasf clearly shown in Figure "3. Thisfl'attened extension 21 is'provided with a cam like face22 which: cooperates with the roller 13 to withdraw the bolt from its keeper when the handle 18 is operated to open the door.

Extending from the arm 20 of the handle is an arm 23 which is substantially at right angles to the-fiatportion 21 of. the arm 20 and has secured'to its outer end by a pivotal connection a rod 24 which is adapted to pass through the opening 25in the door 2 and terminates within the refrigerator in the push handle 26 whereby the lock maybe manipulated within as well as without the refrigerator.

In operation the handle 18 is pulled in:-

surface 22 of the arm 20 of the handle forces" the roller 13 to the right thereby pulling the bolt 10 in the same direction and withdrawing the roller 11 from the seat 5 of'the keeper 3 and permitting the door to be opened. The bolt may be manipulated by pushing the rod 24 from within the refrigerator to the parts as just immediately above described.

It will be noted from Figure 3 that the extreme free end portion of the flattened portion 21 of the arm 20 of the handle 18',

when the bolt is in locked position, lieswithin the perforation in the lug 9' sothat it offers no resistance to the spring 14 exerting its full power to drive thebolt and its roller 11 snugly and firmly into the seat 5 of the keeper 3 thereby insuring an extremely close joint between the door and its jamb. In other words, the construction of the bolt and its associated parts does not prevent the spring from exerting its full force.

As the door is closed the roller 11 rides on the cam like surface 4: of the keeper 3 and when the roller has reached the peak of the cam like surface 4 the pressure of the s ring 14: compels the roller to ride down t e cam surface 4 to closed and locked position.

I am aware that some changes may be made in the details of construction of my improved lock within the scope of the appended claims.

What I claim is:

1. In a door lock, the combination with a base plate, lugs extending at right angles from the face of said plate, a bolt slidably I mounted in said lugs, a coil spring around said bolt and confined between said lugs, one end of the spring being anchored to the bolt, a roller on one end of said bolt adapted to engage a keeper, the other end of the bolt being forked, aroller mounted in said forked end, an operating lever pivotally mounted intermediate its ends on one of said lugs, said lever comprising arms at substantially right angles to each other, one of said arms projecting into said forked end and having a cam face adapted to cooperate with the roller in the forked end.

2. In a door lock, the combination with a base plate, lugs extending at right angles from the face of said plate, a bolt slidably mounted in said lugs, a coil spring around said bolt and confined between said lugs, one end of the spring being anchored to the bolt, a roller on one end of said bolt adapted to engage akeeper, the other end of the bolt being forked, a roller mounted in said forked end, an operating lever pivotally mounted intermediate its ends on one of said lugs, said lever comprising arms at substantially right angles to each other, one of said arms projecting-into said forked end and having a cam face adapted to cooperate with the roller in the forked end, an arm projecting at right angles from one of the arms of said handle, and a rod pivotally secured to this arm and adapted to extend through the door to which the lock is secured, whereby the lock may be operated from either side of the door.

In testimony whereof I alfix my signature.

ALFRED E. TITUS.