US1104106A - Key-fastening device. - Google Patents

Description

W. R. GONOIE.

KEY FASTENING DEVICE.

APPLIOATION FILED JULY15,1913.

Patented July 21, 1914,

UNITED STAES PATENT ornion.

WILLIAM RALPH ooivcin, or SPOKA NE,VWASHINGTON.

KEY-FASTENING DEVICE.

Specification of Letters Patent, Patented July 21, 1914. Application filed July 15,1913. Serial No. 779,134.

To all whom it may concern Be it known that I, VVILLAIABIQ RALPH "00mm, a citizen of the United States, re-

' readily fitted to a door lock in order to make it impossible to pick the same.

A second object is to provide an attachment which shall be. suficiently cheap to warrant its use in connection with cheap locks to prevent them being picked.

A final object of my invention resides in the particular arrangement and combinasimilar to Fig. 1 with the mechanism so ar-,

ranged that it is impossible to turn the key.

'Fig. 8 is a side elevation of the device in the position shown in Fig. 2. Fig. i is a section'on the line H of Fig. 2. Fig. 5 is a detail perspective view of the operating member of my device. Fig. 6 is a view in side elevation of the operating mechanism before it has been assembled. I

In the-separate views the same part is designated by the same reference character.

Referring more particularly to the drawing, 1 is a plate which is fastened to the door 2 by means of screws such as 3'3. The plate 1 is provided with a bore 4 which is countersunk as shown at 5. I provide a spindle 6 which extends through the plate 1, said spindle being provided with a cross portion 7 and a collar 8 which are adapted to fit in the bore 4E and the countersunk portion 5 thereof, respectively.- K For use in 45 connection with the spindle 6, I provide an eccentric 9 which is provided with a rim or collar 10 and connected to a sleeve 11 which has a nut 12 provided with a milled edge, said nut being at theend of said sleeve 11 opposite said eccentric. It will be seen also that the eccentric 9 is provided with a shoulder 13, the eccentric 9 and sleeve 11 and nut 12 being made in one piece and being provided with a bore 14L extending therethrough, the shoulder 13 surrounding one end of said bore. It will be understood moreover, that the bore 14 isadapte'd to fit over the reduced end of the spindle 6. It

will also be seen that the spindle 6 andsleeve 11 are provided with complementary holes 15 and 15 adapted to receive a screw 16 by which the two may be fastened together.

The locking portion proper is'designated as 17 and comprise a shank 18, the upper portion of which is bent outwardly away from the face of the door as shown at 19 and, near it upper end, is provided with a pair of shoulders such as 20-20, the portion 18 being extended upwardly beyond the shoulders 20 to form a catch 21. At the end opposite the catch 21 the member 17 is enlarged to form a portion 22 which is provided with a slot 23 of the same diameter as the eccentric 9.

In assembling mydevice it will be under stood that the spindle 6 is passed through the bore 4 in such a direction that the col lar 8 fits in the countersunk portion 5. The end 22 of the locking member 17 is then passed over the spindle 6 and the eccentric 9 and sleeve 11 passed over the spindle 6 'in such a manner that the collar 13 comes in contact with the end of the cross portion 7. The screw 16 is then screwed into the holes 15 and 15 whereupon the device is ready to be assembled on the door. It will be seen that whenv the parts have been assembled as just described, all of the parts are held firmly but rotatably to the plate 1 on account ofthe engagement between the plate and the collar 8 on one side and between the plate and the eccentric 9 on the other side, while the member 17 is held by the collar 10 which projects beyond the edges of the slot 23, so as to hold the portion 22 against the outer face of the plate 1.

In using my device the key 25 is first turned so asto lock the door to which this lock is connected and the nut 12 is turned so that the major portion of the eccentric 9 is below the axis of the spindle 6. The member 17 is then turned up into the position shown in full lines in Fig. 2 whereupon the key is turned in the position shown in Fig. 1, the member 17 being of such length that it will just pass into the hole in the end of the key when the parts are in the posibrought up, and this forces the member 17 upwardly so that the end 21 projects through the key. It will thus be seen that when the parts arein the position shown in Figs. 2 and 3, it will be absolutely impossible to turn the key by the use of nippers no matter how strong a. person on the outside of the door may be, as the slightest movement to the left or right of the key handle will cause it to strike the shoulder 20 thus preventing further movement. I

WVhen it is wished to throw the device entirely out of operation, for instance during the day, the piece 22 may be swung into tihe position shown by the dotted lines in From the foregoing it will be seen that I have provided a cheap and efficient device which is adapted to beused in connection with the ordinary spring lock and which will absolutely prevent them from being picked.

It will be understood also that while I have shown and described the preferred form of my invention, various modifications thereof may be made without departing from the spirit of my invention and that I contemplate all such modifications as are mechanically equivalent to the arrangement shown and described herein. In particular, it should be understood that in place of the specific locking member 17 shown and described herein, I may substitute therefor a ring member surrounding the eccentric 9 and having two spring wires extending up- I wardly therefrom and bentoutwardly at their upper ends so that the equivalentof the locking shoulders 20 shall be formedabove the key handle instead of below it.

Having thus described my invention, what I claim is 1. A key fastening device comprising in combination, a plate adapted to be fastened to a door and provided with a countersunk bore therethrough, a spmdle inserted in said bore and provided with a shoulder occupyposite said countersunk portion, an apertured eccentric fastened to sald spindle whereit pro ects from the face of said plate,

and a key fastening member rot-atively en- 1 m said countersunk I aortion said s'iindle a pro ecting beyond the face of said plate opand a key fastening member relatively engaging said eccentric intermediate said plate and said collar.

3. A key fastening device comprising in combination, a plate adapted to be fastened to a door and provided with a countersunk bore therethrough, a spindle inserted in said bore and provided with a shoulder occupy- 111g said countersunk portion, said spindle projecting beyond the face of said plate opposite said countersunk portion, an apertured eccentric fastened to said spindle where it projects from the face of said plate, a key fastening member rotatively engaging said eccentric, said eccentric being provided with a collar engaging the outer surface of said key fastening element and holding the same against the outer face of said plate.

t. A key fastening device comprising in combination, a plate adapted to be fastened to a door provided with a countersunk bore therethrough, a spindle inserted in said bore and having a collar occupying the countersunk here, said spindle projecting beyond the face of said plate on the side opposite the countersunk bore, a. key fastening element placed over said spindle and provided with an elongated slot therein, and an operating structure attached to the projecting portion of said spindle, said structure comprising an eccentric having a diameter equal to' the width of said slot and inserted therein, a

sleeve rigid with said eccentric, and a nut rigid with said sleeve, said eccentric and sleeve being perforated to receive the projecting portion of said spindle, said eccentric having a collar of greater diameter than the slot in said fastening element, said collar projecting over the face of said element and holding said element against the face of said plate.

5. A device of the class described comarisin in combination a member adanted :3 7 L to engage a key to prevent the same. from turning, and a member adapted to throw said first mentioned member into locking po-. sition, said first mentioned member having pivotal engagement with said second mentioned member.

6. A device of the class described comprisiug in combination, a member adapted to engage a key to prevent the same from being turned, and a rotatively mounted eccentric for operating said member, said memberbeing pivotally connected to said QCCGIlf tric.

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

WILLIAM RALPH CONCIE. Vi itnesses L. M. WINCH-mow, J. E. BARR.

Copies of this patent may be obtained for five cents each, by addressing-the Commissioner of Patents, Washington, D. O."

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