GB743250A - Improvements in or relating to guards - Google Patents

Improvements in or relating to guards

Info

Publication number
GB743250A
GB743250A GB2531352A GB2531352A GB743250A GB 743250 A GB743250 A GB 743250A GB 2531352 A GB2531352 A GB 2531352A GB 2531352 A GB2531352 A GB 2531352A GB 743250 A GB743250 A GB 743250A
Authority
GB
United Kingdom
Prior art keywords
guard
electromagnet
guards
cramp
oct
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
GB2531352A
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.)
BRITON BRUSH Co Ltd
GEORGE HENRY MARWOOD
Original Assignee
BRITON BRUSH Co Ltd
GEORGE HENRY MARWOOD
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 BRITON BRUSH Co Ltd, GEORGE HENRY MARWOOD filed Critical BRITON BRUSH Co Ltd
Priority to GB2531352A priority Critical patent/GB743250A/en
Publication of GB743250A publication Critical patent/GB743250A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling Processes (AREA)

Abstract

743,250. Machinery guards. BRITON BRUSH CO., Ltd., and MARWOOD, G. H. Oct. 9, 1953 [Oct. 9, 1952], No. 25313/52. Class 80(4) A cup-shaped guard 17 for the cutter 15 of a spindle moulder is carried by a parallel linkage 20, 21, so as to be gravitybiased into guarding position, and is automatically raised on approach of a workpiece by the armature 23 of an electromagnet which is energized on depression of a push-button 25 arranged in the path of the cramp holding the workpiece. The cutter spindle has a collar 16 for co-operation with a steel template on the cramp. In a modification the electromagnet is controlled by a photo-electric cell so that on interruption of a light beam the guard is raised. In a further modification the electromagnet is located above the work table. Where a machine has two oppositely-rotating spindles there may be a single guard for both spindles or separate guards operated by individual buttons and electromagnets. The guard means is applicable to other machines having a continuously-running tool.
GB2531352A 1952-10-09 1952-10-09 Improvements in or relating to guards Expired GB743250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2531352A GB743250A (en) 1952-10-09 1952-10-09 Improvements in or relating to guards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2531352A GB743250A (en) 1952-10-09 1952-10-09 Improvements in or relating to guards

Publications (1)

Publication Number Publication Date
GB743250A true GB743250A (en) 1956-01-11

Family

ID=10225689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2531352A Expired GB743250A (en) 1952-10-09 1952-10-09 Improvements in or relating to guards

Country Status (1)

Country Link
GB (1) GB743250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463354A1 (en) * 1979-08-14 1981-02-20 Dito Hand-guard for electric food mixer - is fixed to handle by pin jointed double arm which switches motor off when pivoted from safe position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463354A1 (en) * 1979-08-14 1981-02-20 Dito Hand-guard for electric food mixer - is fixed to handle by pin jointed double arm which switches motor off when pivoted from safe position

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