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 presses

Info

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
Application number
GB2417646A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2417646A priority Critical patent/GB612081A/en
Publication of GB612081A publication Critical patent/GB612081A/en
Expired legal-status Critical Current

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.
GB2417646A 1946-08-14 1946-08-14 Improvements in or relating to guards for pneumatic drop hammers or hydraulic presses Expired GB612081A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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