GB614041A - Improvements in or relating to machine tool guards - Google Patents
Improvements in or relating to machine tool guardsInfo
- Publication number
- GB614041A GB614041A GB1974146A GB1974146A GB614041A GB 614041 A GB614041 A GB 614041A GB 1974146 A GB1974146 A GB 1974146A GB 1974146 A GB1974146 A GB 1974146A GB 614041 A GB614041 A GB 614041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- machine
- gear
- movement
- roller
- 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
- F16P3/001—Safety devices for guarding the human operator of punch presses or like machine tools performing an opening and closing travel
- F16P3/006—Safety devices for guarding the human operator of punch presses or like machine tools performing an opening and closing travel having a screen moving with the machine and moving the operator out of danger, or restraining the operator, without influencing the switching system
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
614,041. Machine safety devices. STANDARD TELEPHONES & CABLES, Ltd., BAKER, J., and KITCHING, W. F. July 2, 1946, No. 19741. [Class 80 (iv)] A safety device for a machine such as a press with a reciprocating tool, comprises an arm L which is swung in front of the danger area of the machine by means of gearing A, M, N from the reciprocating part P of the machine on its downward stroke. Both the gear A and the arm L are freely rotatable on a fixed shaft B and a certain amount of relative movement between them is allowed by a spring coupling device H. Should the arm L be obstructed by, for example, the operator's finger, this coupling gives and a roller G carried by the arm L is moved into locking engagement between the shaft B and a cam slope S of a recess D in the gear A which prevents further downward movement of the part P. The movement of the part P has to be reversed to release this locking action. Instead of a direct locking of the machine by the roller G, an electrical controlling switch or cut-out may be actuated on relative movement of the arm L to the gear A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1974146A GB614041A (en) | 1946-07-02 | 1946-07-02 | Improvements in or relating to machine tool guards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1974146A GB614041A (en) | 1946-07-02 | 1946-07-02 | Improvements in or relating to machine tool guards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB614041A true GB614041A (en) | 1948-12-08 |
Family
ID=10134424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1974146A Expired GB614041A (en) | 1946-07-02 | 1946-07-02 | Improvements in or relating to machine tool guards |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB614041A (en) |
-
1946
- 1946-07-02 GB GB1974146A patent/GB614041A/en not_active Expired
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