US918357A - Lock. - Google Patents

Description

M. NADOLSKI.

` LOCK.

APPLIUATION FILED NOV. 27, 1908.

Patented Apr. 13, 1909.

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UNITED sTaTns PATENT ermee,

Specification of Letters Patent.

Patented April 13, 1909.

Application led November 2'7, 1908. Serial No. 464,793.

To all whom it may concern:

Be it known that l, MARCELL NADoLskr, a citizen of the United States, and a resident of Jersey (lity, in the county of Hudson and State of New Jersey, have invented a new and Improved Lock, of which the following` is a full, clear, and exact description.

This invention relates to locks such as door locks, and particularly to such as are locked or unlocked by the use of keys or similar means. Y

The object of the invention is to produce a lock of very simple construction which will operate in a simple manner without the use of a spring.

The invention contemplates a construction for a lock by means of which the bolt is positively held against withdrawal when in its locked position.

The invention consists in the construction and combination of parts to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the iigures.

Figure 1 is a vertical section taken through the edge of a door to which the lock has been applied, and showing a short portion of the jamb and keeper with which the bolt of the lock cooperates, this view also showing the key in t e act of being applied to lock the bolt, said key being in cross section; Fig. 2 is a vertical cross section through the lock taken on the line 2 2 of Fig. 1; Fig. 3 is a vertical crossfsection taken on the line SW3 of Fig. 1; Fig. 4 is a view similar to Fig. 1, but showing the bolt in the act of being thrown or shot by the key, this view showing particularly the manner in which the bolt becomes released from the tumblers; and Fig.

5 is a view similar to Fig. 4, but showing the` bolt in its locked position, and illustrating the manner in which the tumblers check the bolt against withdrawal.

Referring more particularly to the parts, l re resents a door to which the lock is applie in the usual manner.

The lock comprises a case 2, the middle portion of which is formed with longitudinal guide-Ways 3 for a sliding bolt 4. The under side and rear portion of this bolt is provided with a channel or enlarged groove 5, and in this channel there is a vertically movable tumbler bar 6. The upper portion of the bolt is provided with vertically disposed openings 7. Three of these openings are disposed forwardly of the channel and near the middle portion of the'bolt, as indicated, while near the rear end of the bolt, a similar opening 8 is provided. These openings 7 and S extend from the upper surface of the bolt completely through into the channel.

On the up )er side of the case 2, there is seated a tum iler holder 9, and tliis tumbler holder is provided with three tumbler pockets l() in the forward portion of the lock, and a single tumbler pocket l1 near the rear portion thereof. rlhe lower ends of the tumbler pockets l() have small openings 12 which operate as guides for tumbler-s 13 and 14. The tumbler 14 is disposed in the pocket 11, while the tumblers 13 are disposed in the pockets 10. These tumblers are in the forni of pins, the upper ends being formed with enlarged conical heads 15 which fill the bores of the pockets and operate as guides when the pins are moved vertically. After the tumblers or pins have been inserted in their pockets, the upper side of the tumbler holder is closed by a cover plate 16.

The upper side of the tumbler bar 6 is provided with stems 17, the upper extremities of which lie in the lower parts of the openings 7, and near the rear end of the tumbler har a similar stein 18 is provided, the upper end of which extends into the opening 8.

ln the lower portion of the case a key pocket -19 is formed, into which a keyv 20 may be passed through a suitable keyhole 2l formed in the escutcheon 22 of the lock. On the under side of the tumbler bar 6, a recess or shallow notch 23 is formed which is directly over the key pocket 19, as shown.

Before proceeding to a description of the mode of operation of the lock, it should be stated that the three openings 7 are adapted to aline with the openings 1.2 when the bolt is in its locked position, but those openings are out of alinenient when the bolt is in its withdrawn or unlocked position. TWhen the bolt is in its withdrawn or unlocked position m am ln order to throw the bolt the key 2O is inserted, as shown in Fig. 1, and is then rotated so that the bit 24 of the key engages the notch As the key is rotated the bit Will raise the tumbler bar 6 so that the stems 17 and 18 advance in the openings in the upper p art of the bolt. ln this Way the tumbler' bar will rise into the position shown in Fig. 4. rEhe upper end of the stein 18 at this time will be ilush With the upper face ci the bolt so that the tumbler 14. will be pushed out of engagei'nent with the bolt; a further rotation of the key will then advance the bolt, and as the bolt advances, the tumbler bar will descend by gravity until it cornes into the position shown in Fig. 5, the bolt then being in its furthermost or locked position. The openings 12 will then aline with the openings 7, and the tumbler 13 will descend by gravity into these openings and check the bolt against being Withdrawn without releasing the tumblers.

It Will be evident that When the tumblers are not in their locking positions they are supported on the upper face of the bolt. ln practice, the lower ends of the tumblers and also the upper ends of the stems Will be slightly rounded so as to insure that the bolt can slide freely when the tumblers are in their releasing position. The bolt coperates with a keeper which is attached to the door iamb 26, in the usual manner.

Having thus described my invention, l claim as new and desire to secure by Letters Patent,-M

1. ln a lock, in combination, a case, a bolt mounted to slide longitudinally in said case, means for engaging said bolt to check the same against sliding, and a movable member mounted loosely on said bolt and sliding transversely ol' said bolt, said movable member atiording means i'or disengaging said locking means and being adapted for actuation by a key.

2. ln a lock, in combination, a case, a bolt movably mounted therein, a plurality of tumblers adapted to engage said bolt to check the same, and a tumbler bar guided transversely on said bolt, having a plurality ol' projections adapted to displace said tumblers, said tumbler bar having means for engaging the bit of a key and ailording means for advancing said bolt al'ter the release of said tumbler.

3. In a lock, in combination, a case, a bolt mounted to slide therein and having openings therein, a plurality of tumblers adapted to engage said openings to check said bolt, and a tumbler bar movable transversely upon said bolt, having a plurality of stems extend ing into said openings and adapted to displace said tumblers, said tumbler bar having a notch in the edge thereof adapted to be engaged by the 'bit of a key.

4.' n a lock, in combination, a case, a bolt sliding longitudinally in said case, having a channel formed therein with openings leading from said channel to the upper face of said bolt, tumblers adapted to engage said openings to check said bolt, and a tumbler bar guided to slide transversely of said bolt in said channel and having stems extending into said openings and adapted to displace said tumblers.

5. ln a lock, in combination, a case, a bolt guided to slide longitudinally therein and having a channel in the under side thereof, said bolt having a plurality oi openings eX- tending from said channel to the upper face ol said bolt, a tumbler holder disposed over said bolt, having tumblers adapted to aline with said openings, and a tumbler bar mounted in said channel and adapted to move transversely of said bolt, said tumbler bar having a plurality of stems extending into said openings and adapted to displace said tumblers by an upward movement, said tumbler bar having a notch in the under side thereof adapted to be engaged by a key.

6. ln a lock, in combination, a case, a bolt mounted to slide in said case, having a channel in the under side thereof, said bolt eX- tending upwardly from said channel through the upper l'ace thereof, a tumbler holder having tumbler pockets With reduced openings connecting the tumbler pockets With the lower face oi said tumbler holder and adapted to aline With said openings, a plurality ol' tumblers consisting ol pins mounted in said tumbler pockets having enlarged heads guided in said pockets, said pins being adapted to descend into said lirst openings to check said bolt, and a tumbler bar mounted in said channel and movable therein transversely ol'l said bolt, said tumbler bar having stems extending in said first openings and adapted to displace said pins.

In testimony Whereoil l have signed my name to this specification in the presence of tvvo subscribing Witnesses.

MARCELL NADOLSK.

TWitnesses ANDREW J. KELLY, `WILLIAM E. HUNT.

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