GB612081A - Improvements in or relating to guards for pneumatic drop hammers or hydraulic presses - Google Patents
Improvements in or relating to guards for pneumatic drop hammers or hydraulic pressesInfo
- Publication number
- GB612081A GB612081A GB2417646A GB2417646A GB612081A GB 612081 A GB612081 A GB 612081A GB 2417646 A GB2417646 A GB 2417646A GB 2417646 A GB2417646 A GB 2417646A GB 612081 A GB612081 A GB 612081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guards
- pistons
- air
- inlets
- guard
- 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)
- Earth Drilling (AREA)
Abstract
612,081. Machinery guards. COOKE, F. A. Aug. 14, 1946, No. 24176. [Class 80 (iv)] In guard-control mechanism for pneumatic drop hammers or hydraulic presses, verticallyslidable front and rear guards 2 are carried by rods 10 adapted to be locked in the safety position by the projecting stems 7 of two locking piston valves 5, connected in series, engaging the heads 10a of rods 10. The machine is started, after closing the guard, through a pedal-operated valve 1, to allow air from the main, 12, to pass through a pipe 14 to an inlet 15 of the locking cylinder 4 of the piston valve 5, which is at this instant closed. Tapped off the line 14 is a line 16 having a non-return valve 17 through which air is delivered through branch pipes 16a and inlets 20 to open the pistons 5 and look the guards. The outer wall of each locking cylinder 4 has a small bleeder hole 20a through which air can escape to close the pistons and release the guards. Should the operator take his foot from the pedal whilst pressure is in the ram cylinder, the guards are kept locked by said pressure acting through lines 21 and non- return valves 22 on the inlets 20 to hold the pistons 5 open.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2417646A GB612081A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to guards for pneumatic drop hammers or hydraulic presses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2417646A GB612081A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to guards for pneumatic drop hammers or hydraulic presses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB612081A true GB612081A (en) | 1948-11-08 |
Family
ID=10207609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2417646A Expired GB612081A (en) | 1946-08-14 | 1946-08-14 | Improvements in or relating to guards for pneumatic drop hammers or hydraulic presses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB612081A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2513708A1 (en) * | 1975-03-27 | 1976-10-07 | Mueller Fritz Fa | Press tool component fixing equipment - has motors rotating and axially moving T-headed clamp screw coupled during clamping |
-
1946
- 1946-08-14 GB GB2417646A patent/GB612081A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2513708A1 (en) * | 1975-03-27 | 1976-10-07 | Mueller Fritz Fa | Press tool component fixing equipment - has motors rotating and axially moving T-headed clamp screw coupled during clamping |
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