US269421A - Locking-latch - Google Patents

Description

(Mo'deL) V J. B. HUTSON.

LOCKING LATCH.

No. 269,421. Patented De0.19, 1882.

- WITNESSES N. PETERS, PhcloLiXhographn Washington. D. c.

UNITED STATES PATENT .FFICE.

LOCKING-LATCH.

SPECIFICATION forming part of Letters Patent No. 269,421, dated Deeember'19, 1882.

To all whom it may concern:

Be it known that I, JOSHUA B. HU'rsoN, of Richmond, in the countyof Henrico and State of Virginia, have invented a new and Improved Lock, of which thefollowing is a full,

clear, and exact description.

' The object of my invention is to provide a new and improved lock of very simple construction which can be used for various purposes-for instance, as a burglar-proof look, as a night-latch, as a key or knob look, a furniture-lock, trunk-lock, &c.

The invention consists in the combination, with the sliding bolt of a lock, of a sliding. frame adapted to lock the knob-nut and the keynnt to prevent them from being turned, thereby preventing the bolt from being withdrawn by turning'the key or knob. By means of the said frame the bolt can also be locked in the position withdrawn into the lock-casing, so that it can be used as a night-latch.

The invention further consists in the construction and combination of parts, as more fully described and set forth hereinafter.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure lis a longitudinal elevation of my improved lock, showing the covering-plate removed, and showing the lock adjusted to be used as a key or knob-lock. Fig. 2 is a like elevation of the same, showing both the keynut and the knob-nut locked so that neither can be turned. Fig. 3 is a like elevation, showing the bolt withdrawn into the lock and held in this position. Fig. 4 is a longitudinal elevation of the latch for locking the sliding frame in the desired position. Fig. 5 is a cross-section of the key-nut, showing the key inserted.

The bolt A terminates in two long shanks, B B, which are adapted to slide in the lockcasing O, and against the inner end of each of which shanks spiral springs 1) rest, which press the bolt outward. At the rear ends 'of the shanks B B lugs a a are provided, against one of which a cam-finger, E, of the key-nut F rests. The knob-nut G is provided with two cam-fingers, H H, which rest against projections or lugs J J of the shanks B. The knobnut G is also provided with apertures d d Application filed September 23,1882. (ModeL) toward the front and rear of the lock, respectively, and the key-nut F is provided with a recess, 0, toward the rear of the lock.

Between the shanks B a frame, K, slides longitudinally, which is provided at its rear end with a socket, K, adapted to receive the end of a key-rod, L, for moving the said frame K. At its rear end the said frame is provided with a pin, g, projecting toward the front end of the lock, and at its front end it is provided with a pin, it, projecting toward the rear end of the lock, and at the middle it is provided with a cross-arm, M, provided with a pin, 1, projecting toward the front of the lock.

ture, m, about forty-five degrees from the aperture d, for a purpose that will be described hereinafter.

The bolt A can also be moved backward by a rod, N, projecting from the bolt and passing through a slot, 0, in the lock-casing.

casing, on which plate Q a strip, R, is pivoted, which is provided with a series of recesses, s. 'The two shanks B of the bolt are united by a cross-piece, T, a short distance from the rear end of the bolt,

The aperture in the lock-casing in which the key-nut F is held is surrounded by a ward, to, which projects from the inner surface of the look-casing, and is provided with fournotches, o, in its inner edges, the said notches being separated from each other a distance of ninety degrees or a quadrant. The key-nut F contains a transverse guard, W, which projects from the sides of the key-nut, and is adapted to be moved in the direction of the longitudinal axis of the key-nut in slots inthe sides of the key-nut. The spring V contained in the nut presses the guard W toward the outer end of the key-nut, which outer end is provided with a slot, Y, adapted to receive the end of a key, X. It the key-nut is placed in the lock, the spring V presses the guard -W on the edge of the ward to, and if the keyqltlll is turned the guard W will snap in one of the notches Q7 and will lock the key-nut in place; or if the keyX is inserted the guard W is By means of the above-described key-nut the lock can be held in different positions, accord- The knob-nut G is provided with an a per- The key-rod L passes through a slot, P, in i a plate, Q, secured on the door or on the lockpushed back and the key-nut can be turned.

- moved by means ofthe key-rod L, which passes and key nuts from being turned, and thus prev right as on the left side of the door without ing to the notches v of the ward to in which the guard W of the key-nut is held.

The operation is as follows If the frame K is in the position shown in Fig. 1, the bolt A can be withdrawn by means of the rod N, by means of the knob-nut Gr, or by means of the key-nut F, which latter will preferably be so arranged that it can only be used with burglar-proof keys. If the lock is to be so adjusted that the bolt can be withdrawn by means of the rod N only, the frame Kis moved in the direction of the arrow a-that is, toward the outer end of the lock-until the pin g passes into the aperture 0 of the key-nut F, and the pin 1 on the transverse piece M of the sliding frame K passes into the aperture d of the knob-nut G, thus preventing the said knob venting the bolt from being withdrawn by means of the knob or key. The frame K is through the slot P of the plate Q, and is held in the desired position by means of the swinging strip It, wlnch is swung above the slot P, so that the stem of the key-rod L must pass into one of the notches s, and will thus be locked in position. If the lock is to be adjusted so that the knob-nut cannot be used, the frame K is moved in the reverse direction of the arrow a, until the pin It passes into the aperture 01 of the knob-nut Gr, thereby preventing the said knobnnt from being turned. Then the sliding frame K will not interfere with withdrawing the bolt by means of the key-rod L or of the key-nut F. In this case the frame K is also looked in position by means of the swinging strip R, the stem of the key-rod L passing into another notch, s. It the bolt is to be locked in the position withdrawn into the lock-casing, the knob-nut G is turned to withdraw the bolt, as shown in Fig. 3, and then the frame K is moved forward so that the pin l passes into the aperture m of the knob-nut Gr, thus preventing the same from turning, and thereby holding the bolt withdrawn into the casing. In this case also the frame K is locked in position by means of the swinging notched strip It. If the bolt is to be looked in position projecting from the casing so that it cannot be opened by either the knobor the rod N, the key-nut F is turned so that its cam-finger E projects toward the front of the lock-casing, the key-nut F and the cam-finger E thereon being locked in position by the guard W, which is pressed into one of the notches v of the ward to by the spring V, and thus locked therein. If an attemptis then made to withdraw the bolt into the lock-casing, the cross-piece T will strike against the end of the cam-linger E and will prevent the bolt A from being withdrawn into the look.

No key-hole is required through the door, as the end of the key-nut F is made flush with the surface of the door.

The lock can be used equally as well on the any change whatever being made. The look is very compact, light, and strong, very little material is used in its manufacture, and it consists of but very few parts. It is long and narrow, and the door is not weakened to any great extent by introducing the look into the same. The-bolt is always free to work except when held back as a night-latch or when purposely made fast by means of the key-nut, as described above. The danger of breakage by slamming the door is entirely avoided. It is a self-locking spring-lock, and if, when the boltis withdrawn, it springs into the lock, the springs immediately push it out again, unless it is secured by -means of the knob-nut or keynut, as described above.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- I A look made substantially as herein shown and described, with a sliding frame for locking the knob-nut and key-nut to prevent them from turning, as and for the purpose set forth.

2. The combination, with a sliding lock-bolt, of a sliding frame for locking the knob-nut and the key-nut to'prevent them fromturning, and of devices for locking the said sliding frame in the desired position, substantially as herein shown and described, and for the purpose set forth.

3. In a lock, the combination, with the bolt, of a sliding frame provided with projecting pins, and of a key-nut and a knob-nut, both provided with apertures for receiving the pins on the sliding frame, substantially as herein shown and described, and for the purpose of locking the said nuts to prevent them from turning, as set forth.

4. In a lock, the combination, with the bolt A, terminating in the shanks B, of the sliding frame K, between the shanks B, the pins g, l, and h on the frame K, the key-nut F, provided with an aperture, 0, and the knob-nut Gr, provided with apertures d,d,andm, substantially as herein shown and described, and for the purpose of holding the bolt withdrawn into the 1ock-casing, as set forth.

5. In a lock, the combination, with the bolt A, terminating in the shanks B, of the key-nut F, provided with the cam-finger E, the ward to, provided with the notches c, the guard W in the key-nut, and the spring V, which presses the guard toward the outer end of the keynut, substantially as herein shown and described, and for the purpose set forth.

6. In a lock, the combination, with the bolt A, of the sliding frame K, provided with pins for locking the knob-nut and the key-nut to prevent them from turning, the key-rod L, projecting from the frame K, the plate Q, provided with the slot P, and the swinging strip It, provided with the notchess, substantially as herein shown and described, and for the purpose set forth.

JOSHUA B. HUTSON.

Witnesses:

JULIUS Sraaus, A. L. STRAUs.

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