US755195A - Lock. - Google Patents

Description

N0.\755,195. PATENTED MAR.22,1904. H. G. VOIGHT'.

LOCK.

APPLICATION FILED DBO. 15, 1903.

N0 MODEL. 2 SHEETSSHEET 1.

/ J I C y a? mu 3 u L Ii 3 17 No. 755,195. PATENTED MAR. 22, 1904. H. G. VOIGHT.

LOCK.

APPLIUATIOR FILED no. 15, 1903.

no MODEL. 2 SHEETS-SHBET 2.

/% I I 8% ae m fifm ng I UNITED STATES Patented March 22, 1904.

PATENT OFFICE.

HENRY Gr. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK.

SPECIFICATION forming part of Letters Patent No. 755,195, dated March 22, 1904. Application filed December 15, 1903. Serial No- 185,207. (No model.)

To all whom it may concern.-

Be it known that I, HENRY Gr. VOIGHT, a citizen of the United States, residing at New Britain, in the county of Hartford, State of 5 Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

My invention relates to locks, and particu- Io larly to door-locks.

Among the objects of my invention are to simplify and reduce in'number and cost the parts necessary to constitute a lock of that type which is fitted to a door in a notch formed in the stile thereof. The simplicity and compactness of the parts avoids the necessity of cutting away but a very slight portion of the door. The latchbolt-may be operated by either knob through the'medium of one roll- 2 back and a single latch-slide, both knobs being connected by a spindle so as to have dependent action. The arrangement of the parts is such that the operating mechanism is located on one side of the door, which obviously may be the outside or inside, as desired. One side plate constitutes the lock-frame in that it supports and guides the latch-slide. The faceplate may have an integral connection with one of the sideplates and a slidable connection with the other side plate, so that both side plates may be moved toward or away from each other to secureadjustment. I have found the construction to-be simple, economical, ef-

. fective, and durable.

In the accompanying drawings, Figure 1 is a plan View of a lock of my improved con struction, a portion of the door being shown in section. Fig. 2 is a vertical section concentric with the axis of the door-knobs. Fig.

4 3 is a view of the inside of one of the side plates, showing the endplate and latch-bolt in elevation. Fig. 4 is a view of the inside of the other side plate, showing the latch-slide and roll-back in elevation. Figs. 5, 6, 7, and

8 are detail views.

A is a side plate for one side of the doorfor example, the outer side. B is another and separate side plate for the inside of the door.

The plates A and B, I shall term ,framedles of the knobs C C.

The special means for mounting the knob C on plate A may comprise a shank which takes a long bearing in a boss or rose on the plate A, the end of the shank being screwthreaded to receive a retaining member C having a flanged end of head, which latter overstands the inside of the plate A to prevent the removal of the knob. The passage through the retaining'device C may correspond in shape to the passage through the spindle of the knob C. Hence when the parts are assembled and when the spindle D is inserted the same serves to key or lock the device C against rotation independently of the knob-shank.

The means for securing the knob C in place maycomprise the sections C C of a ring, which-are located inside of the plate B and project into an annular groove in the shank of the knob C. These ring-sections C may be held in place by means of a solid ring C.

E is a latch bolt or head which in. the form shown has a pivotal bearing in an end plate F. This end plate F may be formed integrally with the plate A, and when the plates A B are in position on opposite sides of a door the said end plate F spans or bridges the space between said frame-plat es at the edge of the,

b 7) form a guideway to receive extensions A A on the plate A. The extensions A A are spaced away from the end plate F a suflicient distance to receive the inwardly-projecting extensions or ledges b b of the extensions B B. \Vhen assembled, the extensions B B project between the extensions A in the end plate F, while the extensions A A overstand the extensions 6 6 and stand between the walls 6 b. This interlocking arrangement provides for adjustability, yet securely holds the frame-plates A B together in perfect parallelisrn and prevents accidental disengagement. Since doors vary in thickness ordinarily by quarters of inches, the range of adj ustability is such as to accommodate at least two doors of different stock thicknesses. If desired, the end plate F may have an extension F, which if the plates A B are moved apart to an extent substantially more than that shown in Fig. 1 will cover any gap or space between the side plate and said end plate.

Gr is a latch-slide which is mounted in suitable guideways H H on the inner side of one of the frame-plates-for example, B.

G represents extensions which stand slightly above the surface of the slide G to afford bearing-shoulders with which the roll-back I may engage. The roll-back I is suitably secured to the shank of the knob C.

G is a pin carried by the slide G, which projects through perforated angular extensions E on the rear of the bolt E. The extension E is connected to the bolt near its free end.

E is an angular extension projecting from the bolt near its pivotal end, and E is the boss which may be formed thereon to receive the end of a spring J, the other end of said spring resting against the inner side of the plate A. The function of the spring is to normally press the latch-bolt E outwardly, so that it will stand in the position indicated in the drawings.

K is a guard-plate the opposite edges of which may be held in undercut recesses (see Fig. 2) on the inner side of the plate B. This guard-plateK serves to protect the slide and the roll-back and by pressing against said roll-back I serves as a simple and effective means for holding the same in position at the end of the shank of the knob C.

It will now be apparent that when thelatchslide G is retracted it will through the medium of the pin G retract the latch-bolt E. When the latch-slide Gr is released, the latchbolt E will spring outwardly, thus returning the latch-slide to its normal position. It will be seen that the latch may be operated by rotating either knob, since both knobs are connected to each other.

In Fig. l the guard-plate K is removed to show the roll-back; but said roll-back is shown in place in Fig. 2 and separately in the detached view Fig. 8. In the plate K will be seen an opening through which the spindle D passes.

L L are screws by means of which the plates A B may be drawn firmly against the sides of the door.

In fitting the latch to a door it is merely necessary to cut a small notch in the stile thereof sufficient to receive and allow for the play of the extensions E E of the latch-bolt. A hole is also bored through the door at a point in line with a spindle D,and other holes may be bored to receive the screws L L. The screws L L are preferably inserted from the inner side of the door.

It should be understood that locking devices may be provided in this type of look; but since I expect to make the same the subject-matter of another application I have not deemed it necessary to show the same herein.

What I claim is In a lock in combination, two separate side plates arranged to bear against opposite sides of a door at the edge thereof, two knobs arranged to rotate dependently, a face-plate carried by one of the said plates and arranged to overstand the edge of the door and overlap the edge of the other side plate, an adjustable means of connection between said side plates near the forward edge of each and to the rear of said face-plate, a latch-slide carried by one of the said side plates'only, a latch bolt or head operatively connected therewith, a roll-back operatively connected with said slide and with both of said knobs, all arranged whereby said plates may be applied to doors of different thicknesses, and the latch-bolt be operatively connected with both knobs.

Signed at New Britain, Connecticut, this 10th day of December, 1903.

HENRY G. VOIGHI.

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