US1479684A - Facing-ring structure for cylinder locks - Google Patents

Description

Jan. 1, 1924 F. E. THOMPSON ET AL FACING RING STRUCTURE FOR CYLINDER LOCKS Patented Jan. 1, 15224.

UNITED STATES PATENT OFFICE.

FRANK E. THOMPSON AND CHARLES LEDIN, OF STAMFORD, CONNECTICUT, ASSIGNORS TO THE YALE & TOXVNE MANUFACTURING COMPANY, OF STAMFORD, CON- NECTICUT.

FACING-RING STRUCTURE FOR CYLINDER LOCKS.

Application filed. October 30, 1922. Serial No. 597,916.

To all whom it may concern: 7

Be it known thatwe, FRANK E. THoMr- SON and CHARLES LEDIN, citizens of the United States, and residents of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Facing-Ring Structures for Cylinder Locks; and we do here by declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in facing or rose ring structures for cylinder looks,one object of the invention being to provide a structure of this character which shall embody a substantial armor structure and also provide yielding means whereby the head portion of a cylinder lock shall have a proper close fit relatively to the facing ring when it is necessary to turn the cylinder in such manner as to insure the location of the plug of the lock in the lower portion of the cylinder when the lock is applied to a door.

With this and other objects in view, the invention consists in certain novel features as hereinafter set forth and pointed out in the claims.

In the accompanying drawings,-

Figure 1 is a sectional view of a facing ring structure embodying our improvements and showing the application of the same to a cylinder lock, the latter being represented in elevation, and

Figures 2 and 3 are front and sectional views illustrating a modification. I

In the embodiment of our invention shown in Figure 1, the body portion of a facing ring 1 made preferably of steel or hardened metal is employed and this ring is provided interiorly with an annular recess 2 forming a shoulder 3 at its base. A tapering annular spring 4, preferably of flat spring metal is located in the recessed ring 1 and one end of the spring is seated against the shoulder 3 which forms the bottomof the annular recess 2 while the outer end of said spring bears against a ring 5 located within the recess 2. Outward displacement of the ring 5 may be prevented by engagement with an inwardly projecting portion 6 of a scalp 7 with which the body of the facing ring is provided.

The ring 5 constitutes an abutment for the flanged or headed end 8 of the lock cylinder 9 and the spring 4 will constitute yleldmg means which will permit a proper close fit of the headed end of the cylinder relatively to the facing ring, while the hardened metal of the ring 1 will serve as an armor to resist penetration of a boring tool and thus protect vital parts within the lock cylinder.

In the embodiment of our invention shown in Figures 2 and 3, a corrugated spring member 10 is employed and this spring member is split and forms somewhat less than a complete circle as clearly shown in Figure 2 In other respects the construction shown in Figures 2 and 3 may be the same as shown in Figure 1.

Having fully described our invention what we claim as new and desire to secure by Letters-Patent, is:

1. The combination of a facing ring having a solid body portion of hardened metal, a spring member carried by the body portion to yieldingly press against the flanged head of a lock cylinder, and a metal scalp covering the saidbody portion of the facing rlng.

2. The combination of a facing ring having a solid body portion of hardened steel, a spring member carried by said body portion to yieldingly press against the flanged head of a lock cylinder, and a metal scalp covering the said body portion of the ring and constituting limiting means for the spring member.

3. In a facing ring structure, the combination of a facing ring having an interior recess forming an annular seat, a spring located within the recessed ring and bearing against said annular seat, and a ring also bearing against said spring and adapted to receive the flanged end or head of a lock cylinder.

4.. In a facing ring structure, the combination of a facing ring having an internal recess formingan annular seat, a coiled spring located within said recessed ring and having one end bearing against said seat, and a ring engaging the other end of said spring and adapted to receive the flanged or headed end of a lock cylinder. 7

5. In a facing ring structure, the combination of a facing ring having an internal re-' cess forming an annfllar seat, a coiled spring hearing at one end against said seat, a ring through said ring and to he co-operable with against which the other end of said spring the head portion of the lock casing.

bears, and a scalp on the facing ring and In testimony whereof, We have signed this having an inwardly projecting part constispecification in the presence of two sub- 5 tuting an abutment for the ring at the outer scribing Witnesses.

end of said spring. FRANK E. THUMPSON.

6. In a facing ring structure, the combina- CHARLES LEDIN.

tion of a facing ring, and a tapering coiled Witnesses:

spring disposed in said facing ring and CHARLES A. BERRY,

10 adapted to surround a lock casing passing ELI EPsTEIn.

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