FR1091047A - Method and apparatus for lowering pit timber by gravity - Google Patents

Method and apparatus for lowering pit timber by gravity

Info

Publication number
FR1091047A
FR1091047A FR1091047DA FR1091047A FR 1091047 A FR1091047 A FR 1091047A FR 1091047D A FR1091047D A FR 1091047DA FR 1091047 A FR1091047 A FR 1091047A
Authority
FR
France
Prior art keywords
timber
pit
lowering
gravity
pit timber
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
Other languages
French (fr)
Inventor
Francois Michelin
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 filed Critical
Application granted granted Critical
Publication of FR1091047A publication Critical patent/FR1091047A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/06—Chutes of helical or spiral form
    • B65G11/066—Chutes of helical or spiral form for bulk
FR1091047D 1953-10-13 1953-10-13 Method and apparatus for lowering pit timber by gravity Expired FR1091047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1091047T 1953-10-13

Publications (1)

Publication Number Publication Date
FR1091047A true FR1091047A (en) 1955-04-06

Family

ID=9615272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1091047D Expired FR1091047A (en) 1953-10-13 1953-10-13 Method and apparatus for lowering pit timber by gravity

Country Status (1)

Country Link
FR (1) FR1091047A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091510B (en) * 1957-07-11 1960-10-27 Gewerk Eisenhuette Westfalia Spiral chute, especially for the downward conveyance of offset mountains
DE1147889B (en) * 1959-03-24 1963-04-25 Deutsche Bundespost Method for vertical conveying of uniform piece goods, especially open transport boxes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091510B (en) * 1957-07-11 1960-10-27 Gewerk Eisenhuette Westfalia Spiral chute, especially for the downward conveyance of offset mountains
DE1147889B (en) * 1959-03-24 1963-04-25 Deutsche Bundespost Method for vertical conveying of uniform piece goods, especially open transport boxes

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