US608592A

US608592A - weitz

Info

Publication number: US608592A
Authority: US
Publication date: 1898-08-09
Anticipated expiration: 1915-08-09

Description

om 9' m nw u A d e t n e 3 P Z N E W H i & S N E R R G N Z 9 5 8 0 6 m N LUCK.

(Application filed Mar. 4, 1898.)

(No Modem #(J hw inventors By XWM Attorney.

Witnesses 110: NORRIS PETERS co, Puoraurua, WASNINGTON. u. c.

turns hrarns Familiar Utmost NICHOLAS GIRRENS AND JAOOB H. WVEITZ, OF BUFFALO, NEWV YORK.

Lock.

srnerrrea'rron forming part of Letters Patent no; 608,592, tr u a 9, 1898. Application filed March 4, 1898. Serial No. 672,513. (NomodeL) To all whom it may concern/.

Be it known that we, NIcHoLAs GIRRENS and J ACOB H. "WEITZ, citizens of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

Our invention relates to an improved lock and key therefor; and the principal object is to provide a lock, having means for preventing the withdrawal of an ordinary key after the same has been introduced to retract the bolt, with a novel form of key having a movable bit portion which cannot be trapped or fastened in the lock against withdrawal.

It also relates to various details of invention, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 represents a side elevation of the lock, the removable side portion being re moved to expose the interior, a section being taken through our improved key on or about line a a, Fig. 4. Fig. 2 represents an outside view of the lock. Fig. 3 represents an inverted reversed side view of the same. Fig. 4 represents a side elevation of the key. Fig. 5 represents a reversedjsid'e elevation of the Fig. 6 represents a side elevation of the key, the pivoted portion of the key-bit being turned over to expose the spring for holding it in its open position.

Referring to the drawings in detail, 1 represents theinclosing case of. the lock, the front plate 2 being removably secured 'to the same in the usual way by screws 3. The locking-bolt 4c is constructed in the usual way and kept in alinement, while free to be moved back and forth longitudinally, by means of the slots or openings 5 and 6 and the station ary guide-piece 7. The portion 8 is attachedto the plate 4:, which lies under the bolt 4 and slides back and forth with it.

through the slot or opening 6 far enough to engage with the tumblers 9, as will appear farther on.

10 represents a spring for forcingthe bolt forward when released from the tumblers. The tumblers are mounted on a pivot 11 and are each provided with a spring 12 for keep- It extends up ing them normally in their downward position.

v The tumblers 9 are each provided with the usual opening 13 and inward-extending portions ltand 15 for engaging with the pin 8 when the bolt is being moved in looking or run locking. The tumblers 9, either one or more, are also provided with a trap -opening 16,

which, While it will trap and hold an ordinary key, will neither trap nor hold our improved and novel form of key, as will be described farther on. In the drawings we have shown but two tumblers 9, but any number more or less may be employed.

17 represents a knob by which thelock may be operated from the inside without a key.

18 represents aportion of the tumblers, of the required shape to enable the same key belonging to the lock to disengage another key that may have been trapped therein, the dotted lines 19 representing the key which has been put in the inside keyhole 20 for that purpose or illustration.

21 in Fig. 2 represents the outside keyhole, used when unlocking or looking the lock.

The key used with this look is shown in Figs. at, 5, and 0, also in Fig. 1, where the pivotal or movable bit portion is turned 0r bent at an angle, illustrating the means by which the key is removed from the lock-trap. It is provided with a pivotal bit portion 22, adapted to turn to one side only, the shoulder 23 preventing its turning in the direction. The spring 24 (shown in Figs. 5 and 6) serves to retain the key and its movable bit portion in its normal condition and returns the said bit portion to said condition immediately after its removal from the trap, as shown in Fig. 1.

While our improved key is primarily designed for use in the locks of patrol-boxes to obviate the necessity of a patrolman carrying two keys, it is also adapted to be used with other locks.

It will be noticed that the tumblers are formed at 18, (see Fig. 1,) so that the same key that operates the lock (shown by dotted lines 19 in Fig. 1) willlift said tumblers and release a key that may be trapped in the opening 16, the inside keyhole 20 being used for that purpose.

We claim as our invention 2 eos,592

1. In a lock the combination with a trapping-tumbler, of an ordinary key adapted to be trapped thereby and a releasing-key for releasing said ordinary key, said releasingkey having a pivoted bit portion adapted to enter the trap of the tumbler and release itself therefrom by the movement of the pivoted bit portion.

2. In a lock, the combination with the tumblers having trapping-slots for trapping and preventing the Withdrawal of an ordinary key, of a key having a pivoted bit portion adapted to enter the trapping-slots and operate the lock and also to release itself therefrom by the turning of the bit portion upon its pivot.

3. In a lock, the combination with the operating mechanism having devices for trapping an ordinary key, of a key similar in form to the ordinary key and having a pivoted bit portion which turns on its pivot to one side only, and is adapted to enter the trapping devices and operate the tumblers to retract the bolt upon the rotation of the key, said key being released from the trapping devices upon its rotation in the reverse direction by the pivotal movement of its bit portion.

4:. A key having a portion of its bit hinged to the remainder and adapted to turn or swing sidewise thereon, a shoulder for preventing its side movement in one direction, and a spring for normally retaining said hinged portion in proper position for operating a lock.

NICHOLAS GIRRENS. JACOB H. WEITZ.

\Nitnesses:

G. A. NEUBAUEB, JAMES SANGSTER.