US587496A - Door-securer - Google Patents

Description

(No Model.)

0. E. STONE. noon SEQURER.

Patented Aug. 3, 1897 ATTORNEYJ WASNINUTON o c UNITED STATES PATENT OFFICE.

CHARLES EDWVIN STONE, OF AMESBURY, MASSACHUSETTS.

DOOR-S ECURER.

SPECIFICATION forming part of Letters Patent No. 587,496, dated August 3, 1897.

Application filed February 12, 1897. Serial No. 623,070. (No model.)

To aZZ whom it may concern;

Be it known that 1, CHARLES EDWIN STONE, a citizen of the United States, residing at Amesbury, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Door-Securers, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same. 7

This invention relates to door-locks; and the object thereof is to provide an improved device of this class which is adapted to be carried in the pocket and to be applied for locking a door from the inner side whenever desired.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which Figure 1 is a sectional side view of a portion of the frame of a door and a portion of the door, showing also my improved lock and the method of operating the same, the lock being also shown in section; Fig. 2, a front View thereof; Fig. 3, a plan View of the lock, and Fig. 4 a longitudinal section thereof at right angles to the section shown in Fig. 1.

In the drawings forming part of this specification the separate parts of my improvement are designated by the same numerals of reference in each of the views, and in said drawings I have shown at 5 a section of a part of a door-frame, and at 6 a corresponding section of a part of the door.

Formed in the face of the door-frame adjacent to the door is achamber orcavity 7 ,which is covered by a metal plate 8, and this chamher or cavity is adapted to receive the ordinary door latch or lock, it being understood that the door 6 may be provided with the usual latch or look; and in the practice of my invention I provide a lock of this class and for the purpose herein described, the same consisting of a metal plate 9, which is provided at its inner end with a projection or head 10 and at its outer end with an enlarged screw-threaded extension 11.

The screw-threaded extension 11 is flat on its opposite sides, as shownat 12 in Fig. 4, and mounted thereon and adapted to slide thereon is a clamping-jaw 13, which is cylindrical in cross-section, and the inner end of which is larger than the outer end, or said clamping-jaw is slightly conical in form and the outer end thereof is provided with a circular chamber 14, in which is mounted a revoluble nut 15, which is provided with a screwthreaded bore through which the extension 11 of the plate 9 passes, and said nut is provided at its outer end with a circular flange or rim 45, which is milled at its perimeter, as clearly shown in Figs. 1, 3, and 4.

The clamping-jaw 13 is provided with a transverse slot 17 at its larger end,which corresponds in width with the thickness of the screw-threaded extension 11 of the plate 9, and the nut 15 is provided with an annular "roove ljj which is formed in its opposite md passing through the smaller end of the clamping-jaw 13 are pins 18,which enter said groove. 4

As thus constructed by turning the nut 15 by means of the flan e 16 the said not will be caused to move inwardly or outwardly on the screwthreaded extension 11, and the clamping-jaw 13 will also be moved outwardly or inwardly, the direction of these movements depending on the direction in which the nut 15 is turned, and'said clamping-jaw being prevented from turning by the form of the plate 9 and the screw-threaded extension 11 thereof.

The operation will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following statement thereof.

Whenever it is desired to lock the door, the nut 15 is turned outwardly as far as necessary and the clamping-jaw 13 is drawn outwardly therewith, the plate 9 and the projection or head 10 are placed in the position shown in Fig. 1, and the door is closed, after which the nut 15 is screwed inwardly until the clamping-jaw 13 firmly presses on the door and the frame 5. When the parts of the lock are in this position, it will be impossible to open the door, and whenever it is desired to open the door from the inner side the nut- 15 is screwed outwardly until the clampingjaw 13 is withdrawn far enough to permit the door to open.

One of the objects of the transverse slot 17in the jaw 13 is to provide room for the projection or striker 19, with which most doors are provided and in connection with which the ordinary latch of the ordinary doorlock operates when the door is closed. This door latch and lock are not shown for the reason that they form no part of this invention, and by forming the slot 17 in the clampingjaw 13 I provide means to enable the jaw to press firmly upon the frame of the door and the adjacent part of the door, as will be readily understood, and in my invention, as will also be understood, the clamping-jaw 13 is not turned when it is forced inwardly by the nut 15, and this feature of the construction prevents the scratching and otherwise injuring the frame and the door, and said jaw may also be provided with a facing of some soft material, if desired.

This device is simple in construction and operation and is perfectly adapted to accomplish the result for which it is intended and may be employed whenever devices of this class are necessary.

Having fully described my invention, I claim as new and desire to secure by Letters Patent A door-securer comprising a metal plate 9 having a head 10 and a screw-threaded extension 11, a clamping-j aw 13, provided with a slot 17 and a chamber la adapted to receive a screw-threaded nut 15 which is provided with a milled flange 16, and an annular groove 18, adapted to engage pins passing through said jaw, all combined substantially as shown and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 3d day of February, 1897.

CHARLES EDlVlN STONE.

Vitnesses:

FRANCES C. SLAGHT, ANNIE M. WALLACE.

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