US781618A - Key-lock. - Google Patents

Description

PATENTED JAN. 31, 1905.

B. M. REVOIR.

KEY LOOK.

APPLICATION FILED JULY 13. 1904.

2 SHEETS-SHEET 1.

PATENTED JAN. 31, 1905.

B. M. REVOIR.

KEY LOCK.

APPLICATION TILED JULY 13. 1904.

2 SHEETS-SHEET 2.

A? d. fm.

Patented January 31, 1905.

PATENT @EEicE.

BUR IS U. REVOIR, OF SYRACUSE, NElV YORK.

KEY-LOCK.

SPECIFICATION forming part of Letters Patent No. 781,618, dated January 31, 1905.

Application filed July 13,1904. Serial No. 216,891.

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Be it known that I, BURTIS M. REVOIR, of Syracuse. in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Key-Locks, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to improvements in locks, and refers more particularly to the keyoperative locking-bolt and to means ln'ought into action by the locking-bolt for locking tho key in the lock or keyhole when the bolt is moved in one direction.

In outside doors it is desirable to lock the key on the inside when the bolt is locked and at the same time to permit the key to be withdrawn when the bolt is locked from the outside and also to permit the key to be withdrawn from either side when the bolt is unlocked. In the use of inside doors it is desirable to lock the key in the look when the bolt is unlocked. so as to prevent the key from jarring out of the keyhole, and at the same time it is necessary to permit the removal of the key when the bolt is locked. in either case it is my purpose to make the key-locking member or members reversible, to be used for right or left hand doors.

Uy object, therefore. is to provide the locking-bolt with a key-locking member or members capable of meeting the requirements above set forth that is, to provide the locking-bolt with one or more key-locking members capable of being used on either right or left hand doors for locking the key in place by the movement of the bolt in one direction either to its locked or unlocked position.

In the drawings,Figure 1 is a plan of the interior mechanism of a lock embodying the features of my invention, the bolt and key and l i cking elements being shown in their locked or unlocked position. Figs. Qand 3 are sectional views taken, respectively, on lines 2 2 and 3 3, Fig. 1. Figs. 1 and 5 are views similar to Fig. 1 of a portion of a lock, showing the bolt in its locked position, but rcversed in Fig. 5 from that seen in Fig. 1, these two views representing the bolt as used for right and left hand doors, respectively, or

as used to lock the key on the inner and outer side of the door. Figs. 6 and 7 are sectional views taken, respectively, on lines 6 6, Fig. 1, and T T. Fig. 5. Figs. Sand 9 are perspective views showing, respectively, the lockingbolt and the tumbler. Figs. 10 and 11 are views similar to Figs. & and 5, showing a modi lied form of bolt carrying key-locking members which are arranged to lock the key when the bolt is unlocked. Figs. 12 and 13 are sectional views taken, respectively, on lines 12 l2, Fig. 10, and 3 13, Fig. 11. Fig. 11 is a perspective view of the locking-bolt seen in Figs. 10 to 13. inclusive. Fig. 15 is a perspective view of a modified form of lockingbolt in which the key-locking member is removable. Fig. 1G is a perspective view of the key-locking element to be used in connection with the locking-bolt seen in Fig. 15 and is adapted to be placed on either side of the lock and bolt and at either side of the keyhole, so that it may be used in connection with the locking-bolt for right and left hand doors and for locking the key either at the inside or outside of the door when the lock is in its locked or unlocked position. Fig. 17 is an edge view of the inner end of the lockingbolt seen in Fig. 15, showing the opposed studs for receiving the key-locking member shown in Fig. 16.

I will lirst proceed to describe the construction seen in Figs. 1 to El. inclusive, which consists of a lock-frame 1, having one side removable, as usual, and provided with a faceplate), having openings 3 and 1, in which are movable, respectively, a catch and a lockingbolt (3. The catch 5 has its outer end guided in the opening I"), and its inner end is removably pivoted to a stud You a lever 8, which is t'ulcrumed at E) and is normally held by a spring 10, whereby the catch is hold in its outer position, said lever being operated by a tumbler 11 on the knob-shank 12, whereby as the knob is turned the lever S is rocked against the action of the spring 10 to draw the catch 5 inwardly, the spring serving to return the parts to their normal position.

' This catch is provided with the usual beveled face 13 and is reversible to permit it to be used for either right or left hand doors.

. bolt the key-locking wings 1 1 1 1 are arranged The locking-bolt 6 is symmetrical in construction and reversible and has its outer end guided in the opening4, while its inner end is 1 provided with key-locking members or plates 1 1% 1%,cither of which may be broughtinto registration with the key-opening when the bolt is locked by simply reversing the bolt to hold the key, as a, from being withdrawn from but one side of the door and at the same time serv- 1 ing to partially close the key-opening to prevent malicious tampering with the interior mechanism of the lock. This bolt6 is arranged substantially midway between the sides of the lock-case, and the key-locking wings or plates 14 are offset or disposed in a different plane from the body of the locking-bolt a distance substantially equal to the distance between the shank of the bolt and inner faces of the sides of the lock-case, so that when the lock and bolt is reversed these wings travel in close proximity to one or the other of the sides of the case and across the key-opening in such side between the bit of the key and side of the case nearest to the wings. The locking-bolt 6 is operated solely by the key a, and being reversible its opposite edges are provided with opposite pairs of engaging shoulders 16 and 17, the shoulders 16 being adapted to be engaged by the key when moving the bolt to the locked position, while the shoulders 17 are adapted to be engaged by the same key when unlocking the bolt. In this form of at the extreme inner end of the locking-bolt for the purpose of locking the key when the bolt is moved to its locked position.

A suitable tumbler 18 is pivoted at 19 to one of the sides of the locking-case and is provided with a shoulder 20, which normally engages and holds the locking-bolt in its unlocked position as seen in Fig. 1 or in its unlocked position as seen in Figs. 1 and 5. This tumbler is held in its operative position in engagement with the bolt by means of a spring 21 and is tripped or moved out of engagement with the locking-bolt against the action of the spring by means of the key (0, this operation being effected simultaneously with the movement of the bolt by the key.

It is now apparent that when the lockingbolt is moved to its locked position, as seen in Figs. et and 5 and also in Figs. 6 and 7, one of the key-locking wings is moved between the bit of the key and one of the sides of the lock-case, and thereby prevents the removal of the key through the key-opening in said side and at the same time partially covers the opening to prevent malicious interference with the interior mechanism of the lock, it being understood that the key-locking wing engages the edge of the bit nearest the handle of the key and that the key may be inserted in and removed from the keyhole in the opposite side of the lock at all times whether the bolt is locked or unlocked. It is also apparent that thiskey-locking element may be used for right or left hand doors or for locking the key at either side of the door when the bolt is locked by merely reversing the lockingbolt from the position shown in Figs. 1. 4c, and 6 to the position seen in Figs. 5 and 7, or vice versa.

The description thus far given relates to the means for locking the key when the bolt is moved to its locking position, and I will now proceed to describe another construction in which the key is locked when the bolt is un locked, as seen in Figs. 10 to 14, inclusive. In this construction all the parts, with the exception of the locking-bolt, are the same as seen in Figs. 1 to 9, inclusive, and the only difference in the locking-bolt is that the keylocking wings, as 25, are secured to the locking-bolt, as 6, at the opposite side of the keyhole from what is shown in Figs. 1 to 9-that is, the wings project toward the inner end of the lock instead of toward the outer end, so that when the bolt is moved to its locked position, as seen in Fig. 10, the wings a are drawn out of engagement with the bit of the key; but when the bolt is moved to its unlocked position, as seen in Fig. 11, one of the wings is brought to a position between the bit of the key and one of the sides of the lockcase and across the key-opening in said side. This bolt 6 is also symmetrical and located midway between the opposite sides of the lock-case, and the wings 25 are offset laterally a distance substantially equal to half the width of the inside of the lock-case, so that by reversing the bolt the key-locking wings are brought to the opposite side of the lock-case, thereby adapting the key-lock to be used for right or left hand doors and for locking the key on either side of the door and at the same time permitting the key to be inserted and removed from the opposite side of the door.

In Figs. 15 to 17 I have shown a furthermodified form of locking-bolt and key-locking member 31, in which said member is removably attached to the locking-bolt and may be applied to either face of said bolt and at either side of the key-opening. The lockingbolt 30 is provided with opposite pairs of studs or pins 32 and 33, and the key-locking member 31 is provided with a pair of apertures 34, which are adapted to receive either pair of the studs 32 or 33, it being understood that there are one pair of these studs 32 and 33 on each of the opposite faces of the locking-bolt 30, so that the key-locking member 31 may be applied to either pair of studs to be used for locking the key either from the inside or outside of the door or for the same purpose on right or left hand doors.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. The combination with a key-operated locking-bolt actuated in both directions by the turningot' the key, of a key-lockingmemher on the bolt interlocking with the bit of the key when the bolt is moved in one direction to prevent removal of the key, said keylocking' member being reversible to permitit to be used to lock the key either on the inside or outside of the door.

2. The combination with a key-operated locking-bolt for right or left hand locks, and a reversible key-locking member brought into action by the bolt to lock the key in the keyhole when the bolt is in either of its reverse positions.

3. The combination with a key-operated locking-bolt. of reversible key-locking members on the boltto cover the keyhole and lock the key from withdrawal when the lockingbolt is moved in one direction.-

t. in a lock, a key-operated locking-bolt having a reversible key-locking member thereon to lock the key when the bolt is moved in one direction.

In a lock. a key-operated locking-bolt, a key-lockiug plate adapted to be secured to either side of the bolt at either side of the key to cover the keyhole and lock the key therein.

T. The combination with a lock having a keyhole and a key-operated locking-bolt, of a reversible key-locking plate, means to attach the plate to the belt at either side of the keyhole whereby the bolt and plate move together to cover the keyhole and lock the key in the keyhole.

In witness whereof I have hereunto set my hand this 29th day of June, 190

BURTIS M. REVOI R.

\Vitnesses:

II. E. (,imslc, M ILDREI) M. N W1.

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