GB457585A - Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like - Google Patents

Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like

Info

Publication number
GB457585A
GB457585A GB977736A GB977736A GB457585A GB 457585 A GB457585 A GB 457585A GB 977736 A GB977736 A GB 977736A GB 977736 A GB977736 A GB 977736A GB 457585 A GB457585 A GB 457585A
Authority
GB
United Kingdom
Prior art keywords
plugs
connexion
shots
firing
relating
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
GB977736A
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.)
NEWTON CAP BRICKWORKS Ltd
Original Assignee
NEWTON CAP BRICKWORKS Ltd
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 NEWTON CAP BRICKWORKS Ltd filed Critical NEWTON CAP BRICKWORKS Ltd
Priority to GB977736A priority Critical patent/GB457585A/en
Publication of GB457585A publication Critical patent/GB457585A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/18—Plugs for boreholes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

457,585. Blasting-tampings. BENNETT, C. W., and NEWTON CAP BRICKWORKS, Ltd., 5, Collingwood Street, Newcastle-on-Tyne. April 2, 1936, No. 9777. [Class 9 (i)] Relates to tamping plugs comprising two wedge-shaped members 1, 2 and consists in attaching to the inner member 1 a string or the like 5 extending outside the bore-hole so that the inner wedge may be held in any position desired to leave any desired free space between it and the charge 4, while tamping material-is pressed in the bore-hole over the outer wedge member 2.
GB977736A 1936-04-02 1936-04-02 Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like Expired GB457585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB977736A GB457585A (en) 1936-04-02 1936-04-02 Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB977736A GB457585A (en) 1936-04-02 1936-04-02 Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like

Publications (1)

Publication Number Publication Date
GB457585A true GB457585A (en) 1936-12-01

Family

ID=9878560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB977736A Expired GB457585A (en) 1936-04-02 1936-04-02 Improvements in or relating to plugs for use in connexion with the firing of shots in coal mines and the like

Country Status (1)

Country Link
GB (1) GB457585A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961601C (en) * 1953-02-05 1957-04-11 Thomas Ashurst Closing plug for blasting holes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961601C (en) * 1953-02-05 1957-04-11 Thomas Ashurst Closing plug for blasting holes

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