GB798758A - Improvements relating to machine guarding - Google Patents

Improvements relating to machine guarding

Info

Publication number
GB798758A
GB798758A GB356656A GB356656A GB798758A GB 798758 A GB798758 A GB 798758A GB 356656 A GB356656 A GB 356656A GB 356656 A GB356656 A GB 356656A GB 798758 A GB798758 A GB 798758A
Authority
GB
United Kingdom
Prior art keywords
guard
plunger
latch
working stroke
machine
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
GB356656A
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.)
JOSEPH DENNIS WALDRON
Original Assignee
JOSEPH DENNIS WALDRON
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 JOSEPH DENNIS WALDRON filed Critical JOSEPH DENNIS WALDRON
Priority to GB356656A priority Critical patent/GB798758A/en
Publication of GB798758A publication Critical patent/GB798758A/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

Abstract

798,758. Machinery guards. WALDRON, J. D., [trading as APEX SHEET METAL WORKS]. Jan. 31, 1957 [Feb. 4, 1956], No. 3566/56. Class 80 (4). The guard 8 of a press or like machine is adapted to slide in guides 9 parallel to the reciprocable ram 7 and is opened automatically after each working stroke by means of a latch 15 pivoted on the ram 7 engaging under a plunger 16 on the guard. The plunger 16 is adapted to be retracted against spring pressure by a handle 21 to disengage from the latch 15 to allow the guard to be moved to the closed position shown. An electric switch 28 in the starting circuit of the machine is adapted to be actuated by an abutment 29 on the guard to allow the press to be operated when the guard is closed. On the downward working stroke the latch 15 rides over the plunger 16 but on the return stroke it engages the plunger to open the guard which must be again closed manually for a further working stroke.
GB356656A 1956-02-04 1956-02-04 Improvements relating to machine guarding Expired GB798758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB356656A GB798758A (en) 1956-02-04 1956-02-04 Improvements relating to machine guarding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB356656A GB798758A (en) 1956-02-04 1956-02-04 Improvements relating to machine guarding

Publications (1)

Publication Number Publication Date
GB798758A true GB798758A (en) 1958-07-23

Family

ID=9760745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB356656A Expired GB798758A (en) 1956-02-04 1956-02-04 Improvements relating to machine guarding

Country Status (1)

Country Link
GB (1) GB798758A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988980A (en) * 1975-08-29 1976-11-02 Brooks Walker Safety guard structure
FR2419456A1 (en) * 1978-03-09 1979-10-05 France Etat Guard screen for machine tool - is operated by pneumatic cylinders actuated by lever and relay system in front of guard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988980A (en) * 1975-08-29 1976-11-02 Brooks Walker Safety guard structure
FR2419456A1 (en) * 1978-03-09 1979-10-05 France Etat Guard screen for machine tool - is operated by pneumatic cylinders actuated by lever and relay system in front of guard

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