US1513432A - Shut-out device and the like - Google Patents

Description

Oct. 28, 1924. 1,513,432

' J. H. SHAW SHUT-OUT DEVICE AND THE LIKE Filed Jan. 10. 1921 Patented Get. 28, 1924.

Unrrsn stares PATENT OFFICE.

JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, 'ASSIGNOR TO SAB-GENT & COMPANY, OF NEW HAVEN, CONNECTICUT.

SHUT-OUT DEVICE AND THE LIKE.

Application filed January 10, 1921. Serial No. 436,219.

To all whom it may concern:

Be it known that 1, JOHN H. SHAW, a citizen of the United States, residing in New Haven, county of New Haven, State of Connecticut, have invented certain new and use ful Improvements in Shut-Out Devices and the like, of which the following is a full, clear, and exact description.

This invention relates to shut-out devices, and more particularly to a device which is adapted to be locked in the keyhole of a door to prevent the insertion of the usual key therein. Such a device is sometimes necessary to prevent the door being unlocked by an unauthorized person.

hen salesmen visit hotels, it is common for them to arrange a display of their goods in the rooms of the hotel and bring their customers in to examine them. In such cases it is desirable for the salesman to be provided with a key or some means of looking his door from the outside so that no one, not even the employees of the hotel, may enter while he is absent. It will, moreover, be

found desirable in many other casesfor guests of hotels to have keys or shut-out de vices which will enable them to secure their doors from the outside against the entry of an unauthorized person. For this purpose it is sometimes the custom to give such guests or salesmen a display-key, which will, when used, lock the door of the room from the outside, so that it may only be opened by use of a master key or a key in the hands of a manager of the hotel, or someone in authority. The employees are enabled though at times to have duplicates of these keys made, which will, of course, enable them to secure entrance to the rooms even when they have not been given these master keys. Such an arrangement, moreover, requires one of these display keys for each door, asof course, they must all be different, and when one is lost, the lock must be taken off and a new key made, or it is useless for this purpose.

I have found it to be very desirable to provide a simple unitary device which will enable a person to lock his door from the outside and be sure that no one will be able to gain entrance during his absence. Moreover the device which I have invented will be universal in its use, as it may be apshut-out device.

plied to all locks which have keyho-les for the insertion of wing keys.

One object of my'inventio-n is to provide a shut-out device which may be securely locked within the keyhole of the door and prevent the insertion of the key therein.

Another object of my invention isto provide a unitary device of the class described, which will be applicable to any door and still be effective to prevent the unlocking of the door. c e

A still further object of my invention is vto provide a' device of the character described, which will be universal in its use in that it may be applied to any door.

A still further object of my invention is to provide a shut-out device, which will close the keyhole of a door against the insertion of a key therein, and one which may Fig. 2 is a fragmentary sectional View of p l the door and lock case, a part of the case being broken away for the sake of clearness;

Fig. 3 is a sectional view along the line 33 of Fig. 2; v

Fig. 4 is a top plan view of the parts shown in Fig. 3;

Fig; 5 is an enlarged elevational detail View of the interior of the lock case showing my improvements in operative position;

Fig. 6 is a front elevational view of my shut-out device removed from the door; and Fig. 7 is a side elevational view of the same with the key inserted'therein;

To accomplish the results and objects heretofore set forth, I haVe provided a plug which is insertable into the keyhole of a door and is adapted to be lo ckedagainst removal therefrom except by the use of the proper key. Fig. l of the drawings shows a section of a door at 10, pro-vided with an escutcheon plate 11 and a door lock provided with a face plate 12 and a lock case 13. A keyhole 14 upon the outside of the door is adapted to admit a key for the operation of the dead bolt 15 after the usual manner.

My shut-out device consists of a plug 16, which is adapted to be inserted into the keyhole 1a of the door. This plug 16 is adapted to be inserted far enough into this keyhole to abut against the lock case 13 adjacent the keyhole 17 formed in the same for the admission of the regular key. The plug 16 is provided with a lock case 18, which is formed integral with the plug in the embodiment shown, although the arrangement of this detail may be varied, if desired, which contains pin tumblers 19 adapted to cooperate with the pin tumblers 21 provided in a key barrel 20 rotatably mounted in.th lock case 18. The portion of the plug which forms this lock case is made larger, as shown in Fig. 4-, than the remainder of the plug, so that the lock case will not be admitted to the keyhole 14:. The size of this lock case, however, is not essential to all aspects of the invention, but may be varied so that even the lock case itself may be small enough to he admitted into the keyhole 1a.

A key 22 of the form commonly used with pin tumbler locks is provided to operate the key barrel 20 within the lock case 18. The key barrel is, as stated, rotatably mounted within the lock case 18 and the pins 21 within the barrel cooperate with the pin tumblers 19 in the lock case in the usual way. The key can, in the arrangement shown, be removed from the lock case only when the salts are in locked position, as shown in igs. 2, 4L, 5 and 6, so that when the shutout device is inserted into the keyhole of a door, the occupant of the room may be sure that when he is enabled to remove the key, the plug is securely locked in position to close the keyhole.

The key barrel 20 is provided with an extension 23. secured thereto for rotation therewith. This extension 23 is provided with a reduced end 24 formed with a shoulder 24L and carrying a wing 25, which reduced end and wing are adapted to project within the lock case, and when the wing has been turned out of alignment with the keyhole 17 of the lock case, the plug will be prevented from removal from the keyhole of the door. The extension 23 is secured to the key barrel 20 by being provided with a tongue 26, which fits within a recess 27 formed in the key barrel and is secured therein by a pin or rivet 28. The particular connection between these two parts, however, is not essential to the invention and the two parts may be formed. in one piece, if desired. The extension 23 is thus rotatably mounted above the plug 16 and will be turned by the rotation 01" the key barrel. A. pin29 mounted in the lock case projects into a groove 30 formed in the key barrel to limit the rotation of the latter to a fraction of a turn. As shown, the key barrel enjoys only about one-eighth of a turn, but this, of course, may be varied, as desired.

The operation of my device is as follows: When a guest desires to lock his door from the outside against intrusion, he is given my shut-out device and key, as shown in Fig. 7. The door to his room would first be securely locked from the outside by the usual key and then my improved shut-out device would be inserted into the keyhole until the shoulder 24: abuts against the lock casing, the wing 25 being received within the lock case upon the door. The wing would then be in the dotted line position shown in Fig. 5. A slight turn of the key to the position shown in Fig. 4 would turn the wing to the position shown in Fig. 5 and the wing would then be prevented from passing out through the keyhole, so that the shut-out device could not be removed from the door. The lock casing will then be engaged between the wing and the shoulder 25% on the stem. The guest of the room would then be assured as long as he retained possession of the key 22 that no master key or device of any kind could be inserted in the keyhole 1 1 to operate the lock bolt 15 to gain access to the room.

It will be seenthat a hotel or roominghouse may be provided only with a limited number of these shut-out devices, as they are adapted to beused with any door, and are not restricted to the lock for which they are especially made, as is-the case with a display key.

My device might also be Very useful to prevent door locks being forced or picked by the insertion of a tool intothe keyhole for this purpose. It is usually the case that a lock with whicha wing key is employed is easier to pick or force than a pin tumbler look, so that my shut-out device might be applied to such a lock to make it safer. Such an application would, in effect, transform such a lock from a wing key look into a pin tumbler lock.

lVhile I have shown and described a pre ferred embodiment of my invention, it is to be understood that the same is not to be limited thereto in all of its details, but that various changes and modifications may be made which will lie within the spirit of the invention and within the scope of the appended claims.

lVhat I claim is:

1. A shut-out device for the purpose described, comprising a pin tumbler lock having a oaslng provided with pin tumblers,

and a rotatable key barrel member operable by a key, arearwardly extending lug integral with said casing, said key barrel member extending rearwardly without said casing above said lug in close proximity thereto, a. separate member above the lug in alignment with the key barrel member and connected thereto whereby said separate member is rotatable thereby, said separate member being provided with a Wing portion adapted to enter a keyhole in a lock case and be rotated therein to a locked position.

2. A shut-out device for the purpose described, comprising a pin tumbler lock having a casing provided with pin tumblers and a rotatable key barrel member operable by a key, a rearwardly extending lug integral with said casing, said key barrel member extending rearwardly without said casing above said lug in close proximity thereto, a Winged member in alignment with and operably connected to said key barrel member, said winged member adapted to enter a keyhole in a lock case and be rotated therein to a locked position.

3. A shut-out device for the purpose described comprising a pin tumbler lock having a. casing provided with pin tumblers and a rotatable key barrel member operable by a key, a rearwardly extending lug integral with said casing, said key barrel member extending rearwardly without said casing above said lug in close proximity thereto, a separate member above the lug in alignment with the key barrel member, one of said members having a bifurcated end, the other member having a tongue extending into the first mentioned member between the bifurcations, whereby said separate member is rotatable by said key barrel member, said separate member being provided upon its other end with a wing portion adapted to enter a key hole in a lock case and be rotated therein to a locked position.

4. A shut-out device comp-rising a cylinder lock having a casing provided with a rearwardly extending lug integral therewith, and a key barrel operable by a key, a separate member operable by said key barrel and supported by said rearwardly extending lug, said separate member having a Wing portion adapted to enter a keyhole in a mortise lock case when in unlocked position and be rotated therein to a locked posi tion.

5. A shut-out device for the purpose described comprising a pin tumbler lock having a casing provided with pin tumblers and a rotatable key barrel, a key for operating said look, a rearwardly extending lug integral with said casing, said key barrel being provided with an extension directed rearwardly above said lug and supported thereby, said extension having a reduced portion adjacent its rear end provided with a wing, said wing rotatable in one direction by said key to a position out of alignment with said lug whereby said key is releasable from said key barrel and said device is retained in a key hole in a door and said wing rotatable in the other direction to release said device from the retained position in the door and, in such released position, said key is retained Within said key barrel whereby said device may be removed from the door by the use of said key as a handle.

6. A shutout device for the purpose described comprising a. pin tiunbler lock having a casing provided with pin tumblers and a rotatable key barrel operable by a key, said casing being cylindrical in shape about said key barrel but having a rectangular lug depending therefrom enclosing said pin tumblers, a rearwardly extending lug integral with said casing of a width less than said depending lug and in alignment therewith, a rearwardly extending cylindrical portion connected with said key barrel above and in close proximity to said rearwardly extending lug, and a reduced cylindrical portion connected to the rear end of said last-named cylindrical portion, having a depending wing, said device presenting a series of stepped key-shaped portions, two of which are adapted to enter keylroles oft different respective diameters.

In Witness whereof, I have hereunto set my hand this 4th day of January, 1921.

JOHN H. SHAlV.

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