US1985710A - Apparatus for the boring of wells, or shafts, and for like operations - Google Patents

Apparatus for the boring of wells, or shafts, and for like operations Download PDF

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Publication number
US1985710A
US1985710A US672967A US67296733A US1985710A US 1985710 A US1985710 A US 1985710A US 672967 A US672967 A US 672967A US 67296733 A US67296733 A US 67296733A US 1985710 A US1985710 A US 1985710A
Authority
US
United States
Prior art keywords
grab
block
scoops
boring
wells
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 - Lifetime
Application number
US672967A
Other languages
English (en)
Inventor
Allard Pierre Jean Ma Theodore
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.)
Societe Francaise de Construction de Bennes Automatiques BENOTO SA
Original Assignee
Societe Francaise de Construction de Bennes Automatiques BENOTO SA
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 Societe Francaise de Construction de Bennes Automatiques BENOTO SA filed Critical Societe Francaise de Construction de Bennes Automatiques BENOTO SA
Priority to US740864A priority Critical patent/US1986096A/en
Application granted granted Critical
Publication of US1985710A publication Critical patent/US1985710A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66C3/12—Grabs actuated by two or more ropes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B11/00—Other drilling tools
    • E21B11/04—Boring grabs

Definitions

  • the present invention relates to an apparatus for the boring, the excavation, the sinking of wells or shafts, and like operations, and is remarkable by the fact that it consists of a grab the operating parts of which are mounted at the bottom of an elongated main body having a practically cylindrical form and adapted to guide the said grab in the cavity to be excavated, the weight of the body being suilicient to enable its use for operating upon the soil by percussion.
  • This arrangement provides for the construction of small grabs having a relatively'considerable weight, and especially employed for the sinking of wells. According to another feature of the invention,
  • the mechanism for opening and closing the grab is entirely enclosed in the said main body.
  • Figs. 5 and 6 are views analogous to Figs. 3 and 4, of another modification.
  • the apparatus comprises an elongated main body the external form of which is practically cylindrical, or preferably somewhat ta- 0 pered.
  • This body is provided at the top with a ring or hook 2 for attaching a cable 3.
  • the said body is hollow, and comprises upper chambers 4 containing lubricating oil, which may 'flow into the interior of the body l through holes 5.
  • 111e 5 said body contains the operating which includes a set of pulleys 6 mounted on an upper spindle 7.
  • a shoulder l2 located at the upper part of the body l serves as a stop for the block 10.
  • A. cable 13 is attached at one end at 14 to the body 1and passes over a set of pulleys 6 and 8 and over a guiding pulley 15 r which is loosely 5 mounted at the upper part of the body l,
  • a ring 17 which is coaxially mounted with respect to said body by means of a circular shoulder 18, and whose internal diameter is preferably smaller than the external diam- 5 eter of the block l0.
  • brackets 19 the number of which corresponds to that o! the scoops 20, (in the construction shown in Figs. 1 and 2, two scoops have been shown) thus forming pivot members for the said scoops.
  • Each of the brackets 19 carries a spindle 2l passing through a central rib or lug 22 pertaining to one of the scoops 20 of the grab. In the open position oi' the scoops 20 (as shown in Fig.
  • the rib 22 makes contact with the ring 17, which forms a stop for the opening motion.
  • the rib 22 is extended inwardly with reference to the scoop 20 by a flat arm 23 engaging a central y forked bracket 24 and connected with one side of 20 the bracket by a pin 25 extending through a slot 26 in the arm 23.
  • the arm 23 of the second scoop 20 is connected inthe same manner with the other side of the bracket 24 (Fig.2).
  • the bracket 24 is securedto the lower end of the block Ib, and comprises for this purpose, at the upper part, a tenon 2'1 which is inserted into a suitable mortise inthe block a'nd is held in place by a key 29 (Fig. 1).
  • the operation is the following;
  • the apparatus is lowered upon the material to be raised, the grab being open, and the cable 3 being held stretched, whilst the cable 13 is slackened.
  • the operator draws upon the closing cable 13, while the opening cable is now slackened.
  • the pulleys oi' block 10 rise in in the body 1, thus causing therotation of the scoops 20 in the direction of the arrows.
  • the grab is opened by slackening the cable 13, 4o while maintaining the grab in the raised position by the cable 3.
  • the block is now lowered in the body 1 and causes the rotation. of the scoops 20 in the contrary direction' to the arrows.
  • the two hemispherical scoops 20 having ⁇ two blades may be suillcient for the work, but if the ground consists of earth containing loose stones, it is preferable to employ scoops having two blades specially adapted for working in a ground of a particular consistency;
  • ythe means such as scoops with claws. may also and the bracket 24 removed from the block 10, in order to replace the assembly consisting of the ring 17, the scoops 20 and the bracket 24 by another assembly which is adapted to the nature of the ground to be worked upon.
  • Figs. 3 and 4 represent one of these interchangeable devices, in which the ring 'l comprises four forks 19 serving as pivots forfour scoops 30 (any othernumber of forks and scoops may obviously be used), each of which comprises a rib or a flat arm 31.
  • Each arm 31 engages in a deep groove 32 formed in a forked bracket 24 which has as many such grooves as there arescoops 30.
  • the arms 31 are pivoted in said grooves by means of spindles 33 passing through slots 34 in the said arms.
  • the ring 17 carries three scoops 20 (only one of which is shown in Fig. 5) whose central ribs 23 are pivoted in a deep groove 32 formed in a bracket 24 having three grooves.
  • the scoops 2O may be replaced by round cutters of suitable shape ⁇ adapted to cut into very hard ground.
  • the closing mechanism is contained in the body 1, which is closed at top and bottom respectively by element 1 and block 10, the said mechanism is protected against contact with sand, earth orstones which might offer prejudice to the working of the apparatus.
  • Apparatus according to claim 1 further provided with abutments disposed on the bottom .of the elongated body and on the operating means, these abutments being intended to make contact when the grab is open and to limit thereby its degree of opening and to receive the shocks due to the percussion on the ground.
  • An apparatus of the kind referred to comprising an elongated hollow body, boring means adapted to operate by violent percussion, pivotally and preferably detachably mounted upon the bottom 'of said body and also intended for seizing the disaggregated material, a heavy slidable element within said hollow body connected to said boring means and adapted to actuate them,
  • said element forming in theupper part of said elongated body a substantially closed chamber, actuating means for said slidable element; mounted and entirely concealed within said chamber, and supporting means for said appa-v ratus adapted to violently drop the latter upon the ground in order to operate the boring by direct impact ⁇ and to lift it thereafter.
  • An apparatus of the kind referred to comprising a grab device.
  • PIERRE JEAN MARIE THEODQRE ALLARD PIERRE JEAN MARIE THEODQRE ALLARD.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
US672967A 1932-08-25 1933-05-26 Apparatus for the boring of wells, or shafts, and for like operations Expired - Lifetime US1985710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US740864A US1986096A (en) 1933-05-26 1934-08-22 Apparatus for the boring of wells or shafts, and for like operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1985710X 1932-08-25

Publications (1)

Publication Number Publication Date
US1985710A true US1985710A (en) 1934-12-25

Family

ID=9682790

Family Applications (1)

Application Number Title Priority Date Filing Date
US672967A Expired - Lifetime US1985710A (en) 1932-08-25 1933-05-26 Apparatus for the boring of wells, or shafts, and for like operations

Country Status (2)

Country Link
US (1) US1985710A (enrdf_load_stackoverflow)
FR (1) FR741536A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US2660862A (en) * 1948-09-25 1953-12-01 Capblanch Julian Apparatus for constructing posts in the ground
US2828943A (en) * 1953-11-17 1958-04-01 Ricouard Henri Leon Georges Boring apparatus
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3965999A (en) * 1974-01-31 1976-06-29 Elisabeth Hochstrasser nee Wack Drilling grab for pile foundations and well boreholes
EP1293468A1 (en) * 2001-08-30 2003-03-19 Sociedad Anonima Trabajos y Obras (SATO) Grab for the recovery of blocks for use under water

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660862A (en) * 1948-09-25 1953-12-01 Capblanch Julian Apparatus for constructing posts in the ground
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US2828943A (en) * 1953-11-17 1958-04-01 Ricouard Henri Leon Georges Boring apparatus
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3965999A (en) * 1974-01-31 1976-06-29 Elisabeth Hochstrasser nee Wack Drilling grab for pile foundations and well boreholes
EP1293468A1 (en) * 2001-08-30 2003-03-19 Sociedad Anonima Trabajos y Obras (SATO) Grab for the recovery of blocks for use under water

Also Published As

Publication number Publication date
FR741536A (enrdf_load_stackoverflow) 1933-02-10

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