GB572348A - Improvements in or relating to safety devices for presses, punches and like machines - Google Patents
Improvements in or relating to safety devices for presses, punches and like machinesInfo
- Publication number
- GB572348A GB572348A GB1906743A GB1906743A GB572348A GB 572348 A GB572348 A GB 572348A GB 1906743 A GB1906743 A GB 1906743A GB 1906743 A GB1906743 A GB 1906743A GB 572348 A GB572348 A GB 572348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ram
- feeler
- levers
- lever
- safety devices
- 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
- F16P3/02—Screens or other safety members moving in synchronism with members which move to and fro
- F16P3/04—Screens or other safety members moving in synchronism with members which move to and fro for machines with parts which approach one another during operation, e.g. for stamping presses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
572,348. Machinery safety devices. FRENCH & SONS, Ltd., T., and WILDE, C. E. Nov. 16, 1943, No. 19067. [Class 80 (iv)] Relates to safety devices for presses, punches and like machines in which a feeler member movable with and in advance of the ram, punch &c. is adapted, when obstructed by an operator's hand, to produce relative movement between the ram and feeler to actuate means such as a catch-pawl to check the movement of the ram. According to the invention, the feeler member and stop means are resiliently coupled by means arranged positively to move the stop means. The ram b carries a cross-head a from each end of which depends a bracket d located near a rack e secured to the side of the ram guides c. In each bracket is pivotally mounted a lever g movable between stops h, i and adapted to act on a pivoted pawl f so as to bring it into engagement with a rack e. Carried from the end of each lever by rods j is a feeler k in the form of a plate closely surrounding the tool or ram b. The rods j are guided at l and pass loosely through the levers g, a spring m being interposed between each lever and a nut on the rod. Obstruction of feeler k tilts the levers g to throw the pawls into engagement with the racks. In a modification, the levers g may actuate a check valve of a hydraulic system wherein the cylinders would be on the cross-head a and the pistons connected to brackets fixed to the guides c. Means may be provided, e.g. a clutch or switch, to cut off the power when the movement of the ram is checked. Visual or audible indication means may be provided to indicate when the safety device has been brought into operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1906743A GB572348A (en) | 1943-11-16 | 1943-11-16 | Improvements in or relating to safety devices for presses, punches and like machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1906743A GB572348A (en) | 1943-11-16 | 1943-11-16 | Improvements in or relating to safety devices for presses, punches and like machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB572348A true GB572348A (en) | 1945-10-03 |
Family
ID=10123217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1906743A Expired GB572348A (en) | 1943-11-16 | 1943-11-16 | Improvements in or relating to safety devices for presses, punches and like machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB572348A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185071A (en) * | 1962-09-14 | 1965-05-25 | Brown Citrus Machinery Corp | Citrus fruit juice extractor |
-
1943
- 1943-11-16 GB GB1906743A patent/GB572348A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185071A (en) * | 1962-09-14 | 1965-05-25 | Brown Citrus Machinery Corp | Citrus fruit juice extractor |
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