FR2417668A1 - Bande d'agrafes, procede et dispositif pour sa fabrication - Google Patents

Bande d'agrafes, procede et dispositif pour sa fabrication

Info

Publication number
FR2417668A1
FR2417668A1 FR7804626A FR7804626A FR2417668A1 FR 2417668 A1 FR2417668 A1 FR 2417668A1 FR 7804626 A FR7804626 A FR 7804626A FR 7804626 A FR7804626 A FR 7804626A FR 2417668 A1 FR2417668 A1 FR 2417668A1
Authority
FR
France
Prior art keywords
wires
acute angle
hooks
shielding
bent
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.)
Withdrawn
Application number
FR7804626A
Other languages
English (en)
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.)
GROETSCHEL KARL
Original Assignee
GROETSCHEL KARL
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 GROETSCHEL KARL filed Critical GROETSCHEL KARL
Priority to FR7804626A priority Critical patent/FR2417668A1/fr
Publication of FR2417668A1 publication Critical patent/FR2417668A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/152—Laggings made of grids or nettings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D19/00—Provisional protective covers for working space
    • E21D19/02—Provisional protective covers for working space for use in longwall working
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B15/00—Nails; Staples
    • F16B15/08—Nails; Staples formed in integral series but easily separable

Abstract

L'invention a pour objet une bande d'agrafes pour relier deux bandes d'entoilage voisines pour la réalisation d'un entoilage de protection recouvrant l'ensemble du soutènement d'un front de taille, bande d'agrafes constituée par une grille métallique enroulée en rouleau, comportant des fils longitudinaux et transversaux, les extrémités des fils transversaux étant sous forme de picots saillant librement vers l'extérieur. Selon l'invention, les picots sont orientés, dans un plan de la bande, en oblique vers l'extérieur dans le sens du déroulement de la bande et ils forment un angle d'incidence aigu avec les fils métalliques orientés dans le sens longitudinal de la bande.
FR7804626A 1978-02-17 1978-02-17 Bande d'agrafes, procede et dispositif pour sa fabrication Withdrawn FR2417668A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7804626A FR2417668A1 (fr) 1978-02-17 1978-02-17 Bande d'agrafes, procede et dispositif pour sa fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7804626A FR2417668A1 (fr) 1978-02-17 1978-02-17 Bande d'agrafes, procede et dispositif pour sa fabrication

Publications (1)

Publication Number Publication Date
FR2417668A1 true FR2417668A1 (fr) 1979-09-14

Family

ID=9204740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804626A Withdrawn FR2417668A1 (fr) 1978-02-17 1978-02-17 Bande d'agrafes, procede et dispositif pour sa fabrication

Country Status (1)

Country Link
FR (1) FR2417668A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525708A1 (fr) * 1982-04-23 1983-10-28 Barroso Angel L Agrafe
CN108030184A (zh) * 2017-12-06 2018-05-15 天津应大股份有限公司 拉筒用斜条对接方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541534A1 (de) * 1975-09-18 1977-03-31 Karl Maria Dipl Ing Groetschel Verfahren und vorrichtung zur sicherung des aufhauens gegen von oben abfallendes kohle- oder bergematerial
DE2619509A1 (de) * 1976-05-03 1977-11-10 Karl Maria Dipl Ing Groetschel Verfahren und vorrichtung zur grossflaechigen sicherung des hangendbereiches in abbaubetrieben mit wanderndem ausbau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541534A1 (de) * 1975-09-18 1977-03-31 Karl Maria Dipl Ing Groetschel Verfahren und vorrichtung zur sicherung des aufhauens gegen von oben abfallendes kohle- oder bergematerial
DE2619509A1 (de) * 1976-05-03 1977-11-10 Karl Maria Dipl Ing Groetschel Verfahren und vorrichtung zur grossflaechigen sicherung des hangendbereiches in abbaubetrieben mit wanderndem ausbau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525708A1 (fr) * 1982-04-23 1983-10-28 Barroso Angel L Agrafe
CN108030184A (zh) * 2017-12-06 2018-05-15 天津应大股份有限公司 拉筒用斜条对接方法

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Legal Events

Date Code Title Description
ST Notification of lapse