GB619117A - Improvements in or relating to locking devices for machine guards and the like - Google Patents
Improvements in or relating to locking devices for machine guards and the likeInfo
- Publication number
- GB619117A GB619117A GB3469546A GB3469546A GB619117A GB 619117 A GB619117 A GB 619117A GB 3469546 A GB3469546 A GB 3469546A GB 3469546 A GB3469546 A GB 3469546A GB 619117 A GB619117 A GB 619117A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- guard
- rod
- catch
- actuated
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/08—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting tobacco
- A24B7/14—Feeding or control devices for tobacco-cutting apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
619,117. Machinery guards. WOOD, W., and MOLINS MACHINE CO., Ltd. Nov. 22, 1946, No. 34695. [Class 80 (iv)] [Also in Group XXV] A locking device for a. machine guard to prevent it being opened whilst the machine parts are still moving, even though the driving power has been cut off, comprises a pivoted catch 4 adapted to engage with a bar 2 secured to the guard or cover 1 and operated by a rod 7 coupled to the starting and stopping device of the machine. On the rod 7 being actuated to stop the machine and unlock the catch 4 it also brings into operation a time-lag device indicated at 10 which controls its operation so that a predetermined time interval elapses before the disengagement of the catch is completed. The time-lag device may comprise a clockwork escapement which is wound up by the locking movement of the rod 7 and controlled by a rotating air-vane or a metal disc or cylinder rotating in a magnetic field. The starting and stopping device of the machine may comprise a switch for an electric motor and may be actuated by a solenoid 9 connected in the motor circuit. Another switch is preferably also provided in the motor circuit which is closed only when the guard is closed and an indicator 13 may be provided and actuated by the rod 7 to show when the guard is locked or unlocked. An additional and independently operated catch 18 may also be provided for further locking of the guard. Specification 365,997, [Group I], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3469546A GB619117A (en) | 1946-11-22 | 1946-11-22 | Improvements in or relating to locking devices for machine guards and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3469546A GB619117A (en) | 1946-11-22 | 1946-11-22 | Improvements in or relating to locking devices for machine guards and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB619117A true GB619117A (en) | 1949-03-03 |
Family
ID=10368808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3469546A Expired GB619117A (en) | 1946-11-22 | 1946-11-22 | Improvements in or relating to locking devices for machine guards and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB619117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2802235A (en) * | 1953-09-11 | 1957-08-13 | Toledo Scale Co | Latch-operated safety switch for steak machine |
| US3456695A (en) * | 1966-10-20 | 1969-07-22 | Huvi Israel Akrenius | Arrangement for a band saw apparatus |
| GB2248900A (en) * | 1990-10-18 | 1992-04-22 | Gd Spa | Guard for a cigarette manufacturing machine |
| EP1384939A1 (en) * | 2002-07-26 | 2004-01-28 | Hauni Maschinenbau AG | Unlocking of protective devices |
-
1946
- 1946-11-22 GB GB3469546A patent/GB619117A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2802235A (en) * | 1953-09-11 | 1957-08-13 | Toledo Scale Co | Latch-operated safety switch for steak machine |
| US3456695A (en) * | 1966-10-20 | 1969-07-22 | Huvi Israel Akrenius | Arrangement for a band saw apparatus |
| GB2248900A (en) * | 1990-10-18 | 1992-04-22 | Gd Spa | Guard for a cigarette manufacturing machine |
| GB2248900B (en) * | 1990-10-18 | 1994-03-23 | Gd Spa | A safety and protective device for association with a drying and sealing unit for a continuous cigarette rod in a cigarette manufacturing machine |
| EP1384939A1 (en) * | 2002-07-26 | 2004-01-28 | Hauni Maschinenbau AG | Unlocking of protective devices |
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