CH550291A - EQUIPMENT FOR DIGGING HOLES AND DIGS OF SIGNIFICANT DEPTH - Google Patents

EQUIPMENT FOR DIGGING HOLES AND DIGS OF SIGNIFICANT DEPTH

Info

Publication number
CH550291A
CH550291A CH294372A CH294372A CH550291A CH 550291 A CH550291 A CH 550291A CH 294372 A CH294372 A CH 294372A CH 294372 A CH294372 A CH 294372A CH 550291 A CH550291 A CH 550291A
Authority
CH
Switzerland
Prior art keywords
digs
equipment
significant depth
digging holes
digging
Prior art date
Application number
CH294372A
Other languages
German (de)
Original Assignee
Fondisa Cost Cemento Compr
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 Fondisa Cost Cemento Compr filed Critical Fondisa Cost Cemento Compr
Publication of CH550291A publication Critical patent/CH550291A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • 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
    • F16N—LUBRICATING
    • F16N19/00—Lubricant containers for use in lubricators or lubrication systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
CH294372A 1971-03-01 1972-03-01 EQUIPMENT FOR DIGGING HOLES AND DIGS OF SIGNIFICANT DEPTH CH550291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21195/71A IT987518B (en) 1971-03-01 1971-03-01 EQUIPMENT FOR EXCAVING HOLES AND TRUNKS OF SIGNIFICANT DEPTH

Publications (1)

Publication Number Publication Date
CH550291A true CH550291A (en) 1974-06-14

Family

ID=11178196

Family Applications (1)

Application Number Title Priority Date Filing Date
CH294372A CH550291A (en) 1971-03-01 1972-03-01 EQUIPMENT FOR DIGGING HOLES AND DIGS OF SIGNIFICANT DEPTH

Country Status (12)

Country Link
US (1) US3750770A (en)
BE (1) BE779940R (en)
BR (1) BR7201203D0 (en)
CA (1) CA961510A (en)
CH (1) CH550291A (en)
DE (1) DE2209876A1 (en)
ES (1) ES400972A2 (en)
FR (1) FR2128474B2 (en)
GB (1) GB1382454A (en)
IT (1) IT987518B (en)
NL (1) NL7202530A (en)
ZA (1) ZA721203B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740101C2 (en) * 1977-09-06 1986-04-24 Casagrande & C. S.p.A., Fontanafredda Drilling grapple
DE19848792C1 (en) * 1998-10-22 2000-05-04 Netzsch Mohnopumpen Gmbh Submersible pump device for use in a borehole
DE50209376D1 (en) * 2001-10-23 2007-03-15 Bosch Gmbh Robert GEAR DRIVE UNIT WITH AN ADAPTER
DE102017004270A1 (en) * 2017-05-03 2018-11-08 Liebherr-Werk Nenzing Gmbh Diaphragm wall grab with hybrid drive
CN112253024B (en) * 2020-12-08 2023-03-24 中国石油天然气集团有限公司 Oil pipe sand removal device and sand removal method for oil and gas well

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618294A (en) * 1926-03-30 1927-02-22 Olson Joseph Underreamer
US2203246A (en) * 1938-11-01 1940-06-04 Estate Of Emil H Zum Berge Underreamer
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3194329A (en) * 1964-06-11 1965-07-13 Calweld Inc Hydraulic grab bucket

Also Published As

Publication number Publication date
ES400972A2 (en) 1975-01-16
BR7201203D0 (en) 1973-05-10
CA961510A (en) 1975-01-21
US3750770A (en) 1973-08-07
NL7202530A (en) 1972-09-05
DE2209876A1 (en) 1972-11-02
GB1382454A (en) 1975-01-29
IT987518B (en) 1975-03-20
FR2128474B2 (en) 1977-12-23
BE779940R (en) 1972-06-16
FR2128474A2 (en) 1972-10-20
ZA721203B (en) 1972-11-29

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Legal Events

Date Code Title Description
PLZ Patent of addition ceased