GB621169A - Improvements in or relating to guards for heavy power presses - Google Patents
Improvements in or relating to guards for heavy power pressesInfo
- Publication number
- GB621169A GB621169A GB3193746A GB3193746A GB621169A GB 621169 A GB621169 A GB 621169A GB 3193746 A GB3193746 A GB 3193746A GB 3193746 A GB3193746 A GB 3193746A GB 621169 A GB621169 A GB 621169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- catch
- pedal
- arm
- clutch
- 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)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
621,169. Machinery safety devices. ART METAL CONSTRUCTION CO., HUTSON, A. E., and TELLING, C. T. Oct. 28, 1946, No. 31987. [Class 80 (iv)] Initial movement of the clutch operating pedal 1 of a power press allows a guard 9b supported on a balanced arm 9a to fall into the safety position, a pin 6, Fig. 3, on a rod 6a connected to the arm 9a being released by a catch 5 operated by an arm 3 coupled to the pedal 1. The guard is locked in the safety position by a catch 9 engaging a pin 8 on the rod 6a and at the same time a latch 12 coupled to the rod uncovers a hole in a bracket 13 to allow a clutch extension rod 14 to be moved to permit further actuation of the .pedal 1 to effect engagement of the machine clutch through a rod 21. Thus if the guard is not closed or is obstructed the clutch engagement is prevented. When the working stroke is almost completed a cam 11 on the main shaft 11a releases the catch 9 and lifts the guard by acting on an extension 9d of the arm 9a. The rod 6a moves down and the catch 5 reengages with the pin 6, a part 4 of the catch 5 having been previously dis-engaged from a projection 4a on rod 3a connected to arm 3 of lever 1. While the ram of the machine is on its upward return stroke a cam member 15 holds up the latch 12 until operated by a bracket 16 attached to 'the ram at the top of the stroke. This device ensures that completion of the upward movement of the ram can be effected in the event of the pedal 1 being momentarily released. As the ram completes its upward movement a catch 18, Fig. 1, on an arm 18a is operated to lift a hook 20 coupling top and bottom portions of the clutch actuating rod 21 thus allowing the top portion to move upwards to release the clutch and stop the machine. When the pedal 1 is released the lower part of rod 21 moves upwards to re-engage the hook 20' of the upper part and the part 4 of catch 5 reengages with projection 4a so that the mechanism is reset for a further working operation. A hand lever 2 is coupled to pedal 1 for alternative hand operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3193746A GB621169A (en) | 1946-10-28 | 1946-10-28 | Improvements in or relating to guards for heavy power presses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3193746A GB621169A (en) | 1946-10-28 | 1946-10-28 | Improvements in or relating to guards for heavy power presses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB621169A true GB621169A (en) | 1949-04-05 |
Family
ID=10330615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3193746A Expired GB621169A (en) | 1946-10-28 | 1946-10-28 | Improvements in or relating to guards for heavy power presses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB621169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594251A (en) * | 1950-02-04 | 1952-04-22 | Goodrich Co B F | Safety mechanism for splicing machines |
-
1946
- 1946-10-28 GB GB3193746A patent/GB621169A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594251A (en) * | 1950-02-04 | 1952-04-22 | Goodrich Co B F | Safety mechanism for splicing machines |
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