US742875A - Combined lock and latch. - Google Patents

Description

No. 742,875. I PATENTED NOV. 3, 1903.

J.-E. KEVERL INB. COMBINED LOCK AND LATCH.

APPLICATION FILED MAB 4. 1903.

N0 MODEL.

NITED STATES JOSEPH E. KEVERLINE, OF COALHILL, PENNSYLVANIA. I

COMBINED LOCK AND LATCH.

SPECIFICATION forming part of Letters Patent No. 742,875, dated November 3, 1903.

Application filed March 4, 1903.

To all whom it may concern.-

Be it known that I, JOSEPH E. KEVERLINE, a citizen of the United States, residing at Coalhill, in the county of Venango and State of Pennsylvania, have invented a new and useful Combined Lock and Latch, of which the following is a specification.

This invention relates to combined locks and latches for doors and similar closures,

[ and has for its object to simplify and cheapen devices of this character and produce a device compact in arrangement of parts and adapted for use in localities where the ordi nary mortise-lock is not applicable.

I The invention consists in certain novel features of the construction, as hereinafter shown and described, and specified in the claims. a

In the drawings illustrative of the invention, in which corresponding parts are denoted by like designating characters, Figure 1 is a general view of the interior of the com-' bined lock and latch with the parts assembled and one part of the casing removed.

Fig. 2 is a transverse section on the line 2 2 of Fig. 1. Fig. 3 is a view of a portion of-a door with the improved lock and latch applied. Fig. 4is a transverse section through the knobs and easing. Fig. 5 is a perspective view of a portion of the combined latch and lock bolt with the combined rotative and adjustable jamb -plate-engaging head detached.

The principal object of the present inven- 5 tion is to produce a combined lock andlatch.

whose operative parts may be inclosed in a casing of relatively small area, while at the same time not sacrificing any of the advantages or eificiency of the larger and more com- 0 plicated structures of this class.

The improved device comprises an inclosing casing formed in two parts 10 ll, united longitudinally by transverse bolts in the usual manner, and with the face-plate 12 attached in the usual manner. In the improved device the casing is materially smaller than in the ordinary devices of this class, as will be noted.

The jamb of the door-frame will be provided with the usual perforated latch-plate;

but as the constrnction'and operation of these plates are so well understood this member Patented November 3, 1903.

Serial No. 146,166. (No model.)

is not illustrated. Generally the jamb-plate and the face-plates are of brass or other similar metals, but may be of any desired metal, while the casing 10 11 is generally of'castiron, but may be of any suitable metal.

The casing 10 11 will preferably be rounded at its edges to expedite the construction of the aperture for it in the door, which may thus be principally formed with a bit or anger, as will be obvious.

The combined lock and latch bolt consists of a head member 13, a forked portion 14., and an intermediate section 15, the head portion having a threaded stud 16 extending therefrom, upon which a jamb-plate-engaging member 17 is supported, the member 17 having an internally-threaded cavity fitting the stud, as shown. By this means the member 17 may be rotated upon the body of the bolt to gitudinally of the bolt to compensate for shrinkage or swelling of the door or jamb. The terminals of the forked portion 14 of the bolt are provided with lateral lugs adapted to beengaged by wings 18 upon a tumbler or sleeve 19, rotatively supported in the casing and having a square aperture through which the knob-spindle 20 passes, as shown. By this arrangement it will be obvious that the rotation of the knob-spindle will actuate the bolt member substantially in the ordinary manner. a The intermediate section 15 is disposed at one side of the head portion 13 and of the forked portion 14, as shown in Figs. 1 and 5, and is preferably arranged in longitudinal alinement with one of the legs of the forked end, so that it operates in relatively close proximity to one of the edge walls of the easing 10 11, whereby the keyholes 21 22 maybe located in the exact transverse center of the casing members and the key operated without interfering with the bolt. By this means the key is operative in alinement with the center of the knob-spindle and the casing, resulting in a material reduction in the area necessary to contain the operative parts.

The bolt-operating spring 24: is placed around the portion 15 and disposed to operate against a projection 25 within the casing, by which means the bolt is yieldablymaintained in operative position. The casing has a lu 23 extending transversely from one side thereof into the casing, forming a stop or look for holdinga lock-trip, hereinafter described, out of the path of the latch-bolt. Within the casing in the space 26 is slidably disposed a spring-controlled lock-trip,preferably formed of a single piece of suitable material, with the body portion 28 having a lug 29 at one end operative between the lug 23'and the end wall of the casing and with the other end 30 bent over and extended parallel with the body portion, forming a spring-leaf operating against the edge wall of the casing when the head or lug 29 of the trip is compressed and the trip is moved bodily in the recess until the lug passes under the lug 23, which holds the lug 29 out of action, leaving the bolt free to be moved by the knob-spindle. When, however, the lock-trip is moved in the opposite direction, the lug 29 will be forced from under thelug 23 and the spring 30 thereof will force itinto the path of the head 13 17 and lock the bolt in its projected position, and thus transform the device into a locklatch.

. The member 28 of the lock-trip will be pro- 4 vided with suitable projections 3l,upon which the wards of the key act, so that the locktrip will be thrown by the rotation of the key.

The projections 31 may be varied to any desired extent and the wards on the key correspondingly varied to complicate the lock mechanism, and thus prevent the possibility of the lock being actuated except by the key which belongs to it. By this simple arrangement the parts are positioned within the casing in a very compact manner, while at the same time none of the efficiency is sacrificed, and the device is fully as operative and will afford fully as much protection as the larger and more complicated devices of the same character. The whole casing may thus be placed in a comparatively thin door without reducing its strength or disfiguring it in any The escutcheons 32 will be projected to form the keyhole-guards, as shown in Fig. 3, I and may be of any fanciful shape or design.

The spindle 20 is square throughout its length and will be provided with screw-threadsupon the carriers for a distance at each end, and the knobs represented at 33 34 have their shanks internally threaded and adapted to engage the threaded spindle, the shanks provided, respectively, with set-screws 35 36, adapted to be set against the unthreaded portions of the spindle to lock the knobs from turning; By this simple arrangement it will be obvious that the knobs may be adjusted their spindles, and will thus render it unnec upon knob-spindles,which are very obj ectionable and unsatisfactory.

Having thus described the invention, what I claim is a latch-bolt having a head at one end and a portion thereof disposed substantially in lon gitudinal alineinent with one leg of said one of the edge walls of said casing, and spring-operating locking means for said latchbolt permanently disposed in said casing in the space between said intermediate portion and the .other edge wall of the casing.

2. In acombined lock and latch, an inclosing casing, a latch-bolt having a jamb-plateengaging head at one end and forked at the other end with the intermediate portion arranged to one side of the headand substantially in longitudinal alinement with one leg of said forked end and disposed near one edge wall of the casing, a spring for maintaining said bolt normally in advanced position, a spring-operated lock-trip disposed within the casing in the space between the intermediate portion of the latch-bolt and the other edge wall of the casing and operating against said head portion, means for actuating said latchbolt, and means for actuating said lock-trip.

3. In a combined lock and latch, an inclosing casing, a latch-bolt having a jamb-plateengaging head at one end and forked at the other end with the intermediate portion located at one side of the head and forked portions and disposed relatively near one edge wall of the casing, a lock-trip formed of a single piece of spring metal doubled upon itself and provided with a head adapted to extend into the path of the latch-bolt, means for holding said trip out of engagement with said latch-bolt, and means for actuating said lock-trip.

4. The combination of an inclosing casing, a latch-bolt disposed therein, a spring-operated lock-trip mounted in said casing, and a lug projecting inwardly from one of the walls 01 said casing forepggging and holding said lockingtrip out of engagement with said trip.

my own I have hereto afiixed my signature in the presence of two witnesses. JOSEPH E. KEVERLINE. Witnesses:

EDWD. S. MOALEVY,

the distance of one-fourth of a revolution upon M. E. BROWNE.

essary to use the ordinary washers employed,

1. The-combination of an inclosing casing,

In testimony that I claim the foregoing as fork at the other end with the intermediate forked end to provide for its disposition near latch-bolt, and means for actuatin gsaidlock

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