US617980A - Keyless door-lock - Google Patents

Description

No. 6I7,980. Patentd lan. I7, |899. vJ. ARNER.

KEYLESS DOOR LOCK.

(Application filed Jan. 10, 1898,) 1 (No Model.) -2 Shees-Sheet I.

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(No Nudel.)

J. Annen. y KEYLESS DOOR LOCK.

(Application led Jan. 10, 1 89B.)

'Patented lan. I7, |899.

2 sheets-heet 2.

Nrrnn STATES PATENT Fries.

JOSEIII ARNER, OF IVEISSPORT, PENNSYLVANIA.

KEYLESS DOOR-LOCK.

SPECIFICATION forming partof Letters Patent No. 617,980, dated January 17, 1899.

Application filed January l0, 1898. Serial No. 666,210. (No model.)

To @ZZ whom it may cmwernr Be it known that l, JOSEPH ARNER, a citizen of the United States, residing at Weissport, in the county of `Carbon and State of Pennsylvania, have invented certain new and useful Improvements in Keyless Door-Locks; and I do hereby 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 keyless door-locks; and it consists in the details of construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

The object of the invention is to provide a combination lock and latch for a door that cannot be opened, when set, by any one except through an acquaintance with the combination and the operation of the lock and which will defeat nefarious attempts to force an entrance into an apartment through the door upon which the lock is located.

In the accompanying drawings, Figure 1 is a sectional elevation of the lock-casing and lock embodying the invention, showing the striker-plate adjacent thereto. Fig. 2 is a section on the line :c x of Fig. 1. Fig. 3 is a section on the line y /y of Fig. 1. Fig. 4 is an elevation of the lock With the casing applied thereto. Figs. 5 and 6 are detail views of coacting annular disks. Fig. 7 is a detail per- Spective View of the dog carried by part of the device. Fig. 8 is a top plan view of the toothed wheel and disk mounted thereon.

Referring to the drawings, wherein similarA numerals of reference are employed to indicate corresponding parts in the several views, the numeral 1 designates a lock-casing of any preferred form of construction and material and, as shown, preferably rectangular in shape, being provided with an interior arrangement to accommodate the different mechanisms hereinafter more fully referred to.

Adjacent to the lock-casing a striker-plate 2 is located, as in ordinary constructions of this character. Within the casing a sliding bolt 3 is mounted, having a head at' the outer end adapted to pass through one end of the said casing and engage the strikerlthe casing.

plate 2. Extending from the head of the bolt is a shank 4, and at the inner termination of the latter a yoke 5 is connected to or integrally formed with said shank. The yoke consists of a curved member directly secured 'to or formed with the said shank, at the central portion thereof, and having opposite longitudinally-disposed parallel arms 6 with engaging lugs 7 on the rear end thereof and which stand out from one side. The bolthead is engaged at its inner end by the free end of a flat spring 8, which is held in the bed of the lock-casing by suitable retaining lugs or projections 9, its opposite end being also free for a purpose which will be hereinafter more fully described.

Extending transversely through the casin g is a knob-spindle 10, of angular form and passing through a collar 11, having a correspending opening therein, which is secured to the toothed Wheel 12, adapted to be rotated by the movement of the said knob-spindlev and lying dat against the adjacent portion of On the said toothed wheel 12 and surrounding the collar 11 is a disk 13, having a notch '14 in one portion thereof, and also surrounding the said collar and resting on the disk is a space-ring 15. The disk 13, as well as the ring 15 and the toothed Wheel 12, all move with the collar 11,and the said disk 13 is a part of wheel12. A screw 16 is mounted in said disk 13 and formed with an angular head which stands out from the adjacent surface of the said disk, and this screw may be changed from one position to another in rearranging the combination of the lock. Over the collar 11 and resting against the space-ring 15 is a second disk or tumbler 17, also formed with a notch or gate 18 in the edge thereof and having adj ustably mounted therein angularheaded screws 19, projecting from opposite sides. These screws may be adjusted to change the combination of the lock by being placed in other screw-openings formed in the said disk 17. Next to the disk 17 and also surrounding the collar 11 is a space-collar 20, and thereagainst is placed a third disk or tumbler 2l, through which the end of the collar 11 projects. 22 in the edge thereof and screw-openings 23 at regular intervals. One of the said openings has removably mounted therein an au- ICO The said disk 21 has a notch guiar-headed screw 2i, which projects over the periphery of the space-ring 20. The said disks, their interposed space-rings, and the collar 11 are movably seated in the opening of the sleeve 25, which has an irregular peripheral contour, owing to the formation of the laterally-projecting ears 2G, with engaging edges to bear upon the lugs at the rear ends of the longitudinally-disposed arms G of the yoke rlhe rearmost part of the sleeve 25 is formed with an extension 27, having an opening 2S extending therethrough ,com municating with upper and lower slots 2). In the said opening 2S a shank 30 of a dog or fence Sl is movably mounted, and at the forward termination of the said shank the dog projects above and below the upper and lower surfaces thereof, and said projecting portions engage the slots 29 in the reseating movements of the said dog and shank. The engaging face of the dog or fence 31 is shouldered or stepped at regular intervals, as at 33, and the opposite corners or angles of the stepped portions are beveled or cha mfered off,as at 32, to provide inclined or cam surfaces, and to the rear of the shank 30 is connected one end of a wire bow-spring 3i,which passes around the said sleeve 25 and is secured at the opposile portion of the latter. By this means the said dog is normally im pelled forwardly. The outer part of lthe dog has a pin 35 projecting therefrom and extending through a slot 36 in the lock-casing,said slot comprising a rearwardly-extending straight portion communieating with a transversely-arranged curved continuation to accomodate the recession of the dog and its shank to permit the pin to move in said action in the rearwardly-projecting slot,and when the combination is completed and the sleeve 25 is rotated the curved continuation allows the said pin to move transversely without impediment.

In arranging the combination the knobspindle is turned through the medium of the knob thereon, and consequently the disks or tumblers 13, 17, and 21 are rotated through the engagement of the adjacently-situated angularly-headed screws carried by the several disks and which will bring the notches or gates in said disks successively around in alinement with the dog or fence 3l. The beveled steps on the engaging face of the said dog as arranged inl the present instance will cause the outermost portion of the dog to enter the gate of the outermost disk first, then the second disk, and finally the third disk,

and when all the notches are in alinement and receive the said dog the latter springs into all gates of the disks and the disks are locked to and are turned with the spindle through either of the ears 2G of the sleeve 25 in accordance with the movement of the knobspindle and brought to bear against either one of the lugs on the rearends of the parallel arms G of the yoke 5, and thereby draw said yoke inwardly and also the shank and bolt-head,releasing the latter from the strikerplate and permitting the door to be opened. The chamfered or inclined surfaces 32 will produce sufficient resistance to the rotation of the tumblers or disks to overcome the tendency of the rotatable hub when turning' to impart corresponding movement to the tumblers. Such resistance, however,.will not be enough to be appreciably noticed by an unauthorized person, and should the knob be turned too far in any direction the fence will be thrown out and the tulnblers disarranged. In turning the knob-spindle for the purpose of arranging the several disks the toothed wheel 12, as stated, is also rotated, and the teeth thereof strike a movable trip 37 on the lock-casing, consisting of a triangular plate which has bearing at one edge against an arm 39, provided with a coil 40, movable on the post 4:1 and extending outwardly through a slot in the casing. The outer end of the said arm has a striker thereon in relative striking position to the bell or gong 2, mounted on the extension 43 from the said lock-casing. The inner end of the spring S bears against the arm 39, 'where it engages the trip 37 and normally holds the said trip inward, orso that one of the angles thereof will be in the path of movement of the teeth of said wheel 12, and when the said teeth strike the said part of the trip the latter is moved against the tension of the spring S and oscillates the arm 29, causing the bell to be struck. The object of this gong or signal is to indicate the number of turns or movements of the toothed wheel in order to indicate that the lock is being operated. If the combination is so set as to require three revolutions of the knob and being sure that the last disk is caught by the angularly-headed screws, which form stops, the operator then begins to count the strokes of the gong or signal, and if the combination calls for twelve strokes forward a count is made of twelve from the starting-point,which is located behind the knob and indicated by a line or point coacting with a notch in the adjacent knob flange. The knob is then turned backward as many times as the combination requires and then forward again to the starting-poiut,when the lock can be easily opened and the number of strokes, as indi-` cated by the sound of the gong or signal, will insure a proper and desired operation when the said strokes tally with said combination. The gong or signal after the lock is opened can be turned out of engagement by any wellknown means. The headed projections are primarily arranged to operate the disks, as stated, and the signal forms also an incidental accessory to assist in determining the position of the disks. l

The operation of the lock as just set forth will be from the exterior of the door, and when within an apartment the lock can be opened at any time without manipulating the combination through the medium of a pin 45, projecting inwardly from the cent-er of the front portion of the yoke 5, projecting through IOO IIO

a slot 46 in the lock-casing. Furthermore, the knob may have a pointer or indicator in connection therewith coacting with the combination-disk, adj acently situated on the casing. This would be an obvious addition and well known in the art, but has not been shown. When the combination 1s opened, or as an additional safeguard under any other conditions of the lock, the bolt-head is adapted to be held in engagement with the striker-plate by the dead-latch 47, consisting of a rod having a rotatable bearing in the end of the casing adjacent to the door-jamb, the said rod having an inner angularly-projecting end y-18 to contact with the rear of the bolt-head and the outer or lower operating button for turning the same.

It will be understood that the projection or lugs throughout the different parts of the casing to support the several attachments in the position required may be arranged at will, and the rear ends of the yoke, or, rather, the longitudinal arms thereof, are adapted to contact with stops 50 to limit the inward movement of the bolt-head and prevent breaking of any of the parts of the lock as an entirety.

It will be apparent that changes in the form, proportions, and minor details of construction may be resorted to without departing from the nature or sacrificing any of the advantages of the invention.

Having thus described the' invention, what is claimed as new isl. In a lock, the combination of a movable yoke having a bolt-head extending directly therefrom, a sleeve mounted Within and adapted to actuate said yoke, tumbler-disks in said sleeve provided with stops and notches, a fence carried by said sleeve and having stepped projections, and a knob-spindle for actuating the disks and sleeve, substantially as described.

2. In a lock, the combination of a sleeve, a series of tumbler-disks therein, a spindle extending through said disks, a fence carried by said sleeve to engage the tumblers, a toothed Wheel on which the sleeve rests and operated by said spindle, a yoke having oppositely-arranged legs or branches embracing the sleeve, a gong, and a hammer actuated by the toothed wheel, substantially as described. i

3. In a lock, the combination with a movable yoke, of a sleeve mounted therein for actuating the yoke, a series of tumbler-disks in the sleeve, a fence operating in a recess in the sleeve and having stepped projections, a knob-spindle for actuating the disks and sleeve, and a semicircular spring having one end attached to the sleeve and its free end attached to the fence, said spring extending outwardly of the sleeve. s

In testimony whereof I affix my signature in presence of two Witnesses.

JOSEPH ARNER. Witnesses:

CALVIN E. ARNER, VICTOR SoLo.

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