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FR527801A - Automatic device for the operation of clamshells and excavators - Google Patents

Automatic device for the operation of clamshells and excavators

Info

Publication number
FR527801A
FR527801A FR527801A FR527801DA FR527801A FR 527801 A FR527801 A FR 527801A FR 527801 A FR527801 A FR 527801A FR 527801D A FR527801D A FR 527801DA FR 527801 A FR527801 A FR 527801A
Authority
FR
France
Prior art keywords
clamshells
excavators
automatic device
automatic
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
FR527801A
Other languages
French (fr)
Inventor
Francois-Charles Bertheaut
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.)
FRANCOIS CHARLES BERTHEAUT
Original Assignee
FRANCOIS CHARLES BERTHEAUT
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 FRANCOIS CHARLES BERTHEAUT filed Critical FRANCOIS CHARLES BERTHEAUT
Application granted granted Critical
Publication of FR527801A publication Critical patent/FR527801A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/06—Grabs actuated by a single rope or chain
    • B66C3/10—Grabs actuated by a single rope or chain and having buckets opening automatically upon the grab being lowered on to the dump of material
    • B66C3/105—Devices for control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR527801A 1920-12-01 1920-12-01 Automatic device for the operation of clamshells and excavators Expired FR527801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR527801T 1920-12-01

Publications (1)

Publication Number Publication Date
FR527801A true FR527801A (en) 1921-10-31

Family

ID=8921594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR527801A Expired FR527801A (en) 1920-12-01 1920-12-01 Automatic device for the operation of clamshells and excavators

Country Status (1)

Country Link
FR (1) FR527801A (en)

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