GB414292A - Improvements in or relating to combination locks - Google Patents
Improvements in or relating to combination locksInfo
- Publication number
- GB414292A GB414292A GB362/34A GB36234A GB414292A GB 414292 A GB414292 A GB 414292A GB 362/34 A GB362/34 A GB 362/34A GB 36234 A GB36234 A GB 36234A GB 414292 A GB414292 A GB 414292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bolt
- tumblers
- disc
- spring
- spindle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/04—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by rotating a shiftable knob
Landscapes
- Lock And Its Accessories (AREA)
Abstract
414,292. Permutation locks. PRINA, G., 10, Via Pollenzo, Turin, Italy. Jan. 4, 1934, No. 362. Convention date, Jan. 4, 1933. [Class 44.] A sliding bolt 1 is locked by spring-pressed pivoted tumblers 10 which engage with a notch 1<1> in the bolt and can be disengaged from the outside of the door by cams 20 carried by permutation discs 18 and co-operating with arms 10<a> of the tumblers ; from the inside of the door, the tumblers can be disengaged by depressing a spring plunger 11 which acts directly on the tumblers and means such as a bayonet slot may be provided to hold the plunger depressed and the locking mechanism inoperative. The bolt, slidable in straps 2 on a plate P, is operated from inside by a knob 8 and from outside by a follower arm formed in two parts 4, 5 pivoted together at 22, the part 4 being secured on a handle spindle 6 and the free end of the part 5 engaging with a socket 9 on the bolt ; the parts 4, 5 are normally held in alignment by a spring 23 and relative pivotal movement is limited by a pin 4<1> and slot 5<1>. When the spindle 6 is turned to withdraw the bolt, the upper end of the part 4 closes a signalling circuit by co-operation with a switch 24 and the connection of the parts 4 and 5 permits sufficient rotation of the spindle to close the circuit also when the bolt is locked. The permutation discs 18 are set by a sleeve member 14 which has an operating knob 15, is slidable and rotatable on the spindle 6, and carries a tooth 16 to engage with one of a number of notches 18<1> in each disc whereby the discs can be set in succession. Each cam 20 is adjustably attached to its disc 18 by a set screw engaging with one of a number of holes 20<1> in the disc corresponding to the notches 18<1>. Each disc 18 is provided with recesses 18<11> with which a spring-pressed pawl 19 engages, and in setting, the disc is turned clockwise to bring it to its zero position in which it is stopped by a tooth 18<111> engaging with a shoulder 19<1> on the pawl and then anti-clockwise for a predetermined number of clicks produced by the pawl snapping into the recesses 18<11>. A single spring 21 is provided for the tumblers and the pawls.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT414292X | 1933-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB414292A true GB414292A (en) | 1934-08-02 |
Family
ID=11250268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB362/34A Expired GB414292A (en) | 1933-01-04 | 1934-01-04 | Improvements in or relating to combination locks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB414292A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491561A (en) * | 1947-02-24 | 1949-12-20 | Horne William Arthur John | Permutation switch for the ignition system of motor vehicles |
-
1934
- 1934-01-04 GB GB362/34A patent/GB414292A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491561A (en) * | 1947-02-24 | 1949-12-20 | Horne William Arthur John | Permutation switch for the ignition system of motor vehicles |
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