US815977A - Knob for locks and latches. - Google Patents

Description

No. 81'5,977. PATENTED MAR. 27, 1906.

. BQPHELPS. KNOB FOR LOCKS AND LATGHESQ 'APPLIOATION FILED MAB-2, 1905. I

W04 Bhmv P L/ 5 BYRON PHELPS, OF SEATTLE, WASHINGTON.

Speeificationof Letters Patent.

KNOB FOR LOCKS AND LATCHES.

Patented March 27, 1906.

Application filed March 2, 1905. Serial 110,248,176.

To all whmn it may concern:

Be it known that I, BYRON PHELPS, a citizen of the United States, residing at Seattle, county of King, and State of Washington, have invented certain new and useful Improvements in Knobs for Locks and Latches, of which the following is a full, clear, and exact description.

My invention relates toknobs for looks and latches.

The object of the invention is to provide a new and improved construction whereby a lock may be introduced into a knob and there protected and held securely in place.

In the accompanying drawings, Figure 1 is a longitudinal section of a knob of my improved construction fitted with a lock of the pin-cylinder type. Fig. 2 is a longitudinal section taken on a plane'at right angles to that shown in Fig. 1. Fig. 3 is an end view of the knob, the lock-retaining devices and the lock being removed. Fig. 4 is aview of the inside of a detail of construction.

1 is the shell of the knob, which is hollow and which is suitably secured to ashank 2.

3 is a removable cover-plate fitted in an opening in the outer end of the knob, said opening being clearly shown in Fig. 3.

4 is a lock of the pin-cylinder type, the inner end of which may rest against a portion of the knob 1 so as to be properly seated ,while the outer end may be supported by the plate 3.

The plate 3 is accurately fitted to the opening in "the end of theknob, 'so that when the parts are assembled it will not be apparent that the plate 3 is anything but an integral part of said knobi The plate 3 has an aperture to permit of the introduction of a key into the lock .4. In the particular form shown the outer end ofthe hub 4: of the lock is seated in said aperture.

4 is the pin-casing, in which the pin-tumblers are mounted after the well-known man- Within the knob are suitable lugs or projections arranged to straddle the pin-casing 4* or otherwise suitably engage the lock-case, so as to steady the same and hold it against displacement. In the particular form shown said lugs are carried by the cover-plate 3 and are indicated at 5 5.

6 6 are screws constituting fastening devices. These screws serve to clamp the plate lace. The screws are introduced throug holes in the inner end of the knob 1,

while the. threaded ends engage in bosses 3 3 on the inner surface of the plate 3.

7 is a rose-plate which overstands the screw heads and perforations at the inner end of the knob, giving to the latter a finished appearance at that end.

The cover-plate 3 may lie flush with the surface of the knob or may stand slightly above the same, as indicated in the drawin s. The opening in the knob 1, into which t e cover-plate is inserted, may be rovided with a supporting-ledge 1, upon which the edge of the cover-plate 3 may rest when in its home position. The opening in the outer end of the knob, which the cover-plate 3 is adapted to close, is of such a size or shape as to perthe lock to be introduced or removed at What I claim is In a knob, a knob-body having a seamless grip portion, an o ening in the outer end of said knob-body o sufficient size to admit of the introduction and removal of a lock, said 0 ening being of substantially less diameter t an the greatest diameter of the knob, a coverlate for said opening, a bearing in said p ate for said lock 1n combination with a lock and means accessible at the inner end of WM. V. COLLINS. U

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