Patent US3115983A successfully refreshed from Google Patents.
Patent US4214374A successfully refreshed from Google Patents.
US4214374A
Expired / Lapsed
US
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Method of and apparatus for measuring the deviation of the center axis of bore holes and trenches relative to the design vertical center axis thereof
Assignee: CMC INTERNATIONAL Inc A PANAMA CORP
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Filing: 1979-01-09
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Granted: 1980-07-29
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Expires: 1999-01-09
Abstract
Abstract A method of measuring the deviation of the run of the actual vertical center axis of fluid filled bore holes and trenches relative to the direction of the design center axis thereof which bore holes and trenches are excavated under bentonite slurry comprises inserting into said bore holes and trenches a gauge means suspended from a cable means, whereby said gauge means is arrested inside said bore hole at any desired level, and thereafter a measuring cable means is connected to said gauge means and substantially tensioned and brought to run in an exact vertical direction whereupon above ground level the horizontal deviation of said cable means from the design center line of said bore hole or said trench is measured. An apparatus for carrying out said method comprises a gauge means arrestable inside said bore hole or said trench, a cable means for suspending and controlling said gauge means, a supporting frame means for supporting said cable means and said gauge means, a tensioning device to apply a tension force at one end of said cable means and an instrument means to control the verticality of said cable means.
Inventors
- 👤 Giosue Miotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:40
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; E21B47/022
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
281 words
In an apparatus for measuring the deviation of the run of the actual center axis of bore holes or trenches filled with bentonite relative to the design vertical center axis thereof, the excavation of said bore holes and trenches proceeding by utilization of bentonite fluid filling substantially completely said bore holes and said trenches such to back the side walls of said bore holes and said trenches to prevent a cave-in thereof, which apparatus comprises a gauge means arrestable inside said bore hole or said trench, a cable means for suspending and controlling said gauge means, a supporting frame means for supporting said gauge means, a tensioning device means to apply a predetermined tension force at one end of said cable means, and an instrument means to control the verticality of said cable means, an improvement comprising that said cable means includes a service cable means and a measuring cable means, said service cable means being interchangeable with said measuring cable means, said gauge means including a predetermined mass resulting in a force of gravity exceeding the tensile strength of said measuring cable means, wherein said gauge means includes a body provided with a plurality of circumferentially arranged protrusions for keeping said gauge means aligned within said bore hole or trench, said cylindrical body including a centrally arranged socket means open toward the top end of said body, a top section of said body being shaped in form of a funnel such to provide a guideway leading to said socket means, the improvement further comprising a plug means arranged to be suspended at one end from said cable means, which plug means is arranged to releasably lock into said socket means.
Claim 2
Dependent Claim
281 words
In an apparatus for measuring the deviation of the run of the actual center axis of bore holes or trenches filled with bentonite relative to the design vertical center axis thereof, the excavation of said bore holes and trenches proceeding by utilization of bentonite fluid filling substantially completely said bore holes and said trenches such to back the side walls of said bore holes and said trenches to prevent a cave-in thereof, which apparatus comprises a gauge means arrestable inside said bore hole or said trench, a cable means for suspending and controlling said gauge means, a supporting frame means for supporting said gauge means, a tensioning device means to apply a predetermined tension force at one end of said cable means, and an instrument means to control the verticality of said cable means, an improvement comprising that said cable means includes a service cable means and a measuring cable means, said service cable means being interchangeable with said measuring cable means, said gauge means including a predetermined mass resulting in a force of gravity exceeding the tensile strength of said measuring cable means, wherein said gauge means includes a body provided with a plurality of circumferentially arranged protrusions for keeping said gauge means aligned within said bore hole or trench, said cylindrical body including a centrally arranged socket means open toward the top end of said body, a top section of said body being shaped in form of a funnel such to provide a guideway leading to said socket means, the improvement further comprising a plug means arranged to be suspended at one end from said cable means, which plug means is arranged to releasably lock into said socket means.
Claim 3
Dependent Claim
14 words
The apparatus as defined in claim 1, wherein said body is a cylindrical body.
Claim 4
Dependent Claim
60 words
The apparatus as defined in claim 2, wherein said socket means is a cylindrically shaped through bore extending coaxially of said cylindrical body and comprising an intermediate section of an enlarged diameter defining an abrupt change of cross-section and thus an abutment shoulder, and that said through bore comprises a lower section having converging side wall portions defining a stop.
Claim 5
Dependent Claim
49 words
The apparatus as defined in claim 1, wherein said plug means comprises a cylindrical main body and a coaxially to said main body extending cylindrical outer shell in which said main body is at least partly received, whereby said outer shell is axially movable relative to said main body.
Claim 6
Dependent Claim
117 words
The apparatus as defined in claim 4, wherein said main body comprises a section of reduced diameter and of predetermined axial length, further that said outer shell is provided at one end with an inwardly directed protrusion extending into said section of reduced diameter such that the extent of movement of said outer shell relative to said main body is limited between two end positions, the distance between which is determined by said predetermined axial length of said section of reduced diameter and wherein said main body is provided with a plurality of pawl means arranged circumferentially of said main body, whereby said main body is provided with a recessed section for receiving of said pawl means.
Claim 7
Dependent Claim
94 words
The apparatus as defined in claim 5, wherein each said pawl means comprises a plurality of pawl members hingedly connected to said main body and pivotable between a first position in which each said pawl member extends substantially parallel to the longitudinal axis of said main body and is substantially completely received within said recessed section, and a second position in which each of said pawl members projects obliquely out of said main body, and in that said main body is provided with spring means biassing each said pawl member into its second position.
Claim 8
Dependent Claim
75 words
The apparatus as defined in claim 6, wherein in the said first position of said pawl members said outer shell is in one of its said end positions and overlies and abuts each of said pawl members, keeping them against the force of said spring means located within said recessed section, and in the said second position of said pawl members said outer shell is in its other end position remote from said pawl members.
Claim 9
Dependent Claim
46 words
The apparatus as defined in claim 7, wherein in said second position of said pawl members said pawl members engage into said abutment shoulder of said through bore of said socket means such that said body of said gauge means is suspended by said plug means.
Claim 10
Dependent Claim
102 words
The apparatus as defined in claim 7, wherein said outer shell comprises a rim located oppositely to said end having said inwardly directed protrusion, whereby said rim is provided with inwardly extending latch-like projections, and that each said pawl member comprises an outer stepped portion defining a shoulder such that at said first end position of said pawl members said latch-like projections engage in said shoulders locking said pawl members in their first position, whereby said outer shell is kept in said overlying relationship relative to said pawl members thus allowing a retrieval of said plug means out of said socket means.
Claim 11
Dependent Claim
118 words
The apparatus as defined in claim 9, wherein said through bore of said socket means comprises a conically converging end section, further that the outer surface of the end section of said outer shell comprising said inwardly directed protrusion extends correspondingly conically such that said conical end section of said through bore forms an abutment for said outer shell, such that upon lowering said plug means down within said socket means said outer shell will abut at said end section of said through bore and thus will be arrested, whereby said main body will descend further causing said rim area of said outer shell to slide over said pawl members, thus forcing them into their said first position.
Claim 12
Dependent Claim
76 words
The apparatus as defined in claim 1, wherein said supporting frame means comprises an annular base plate means and a first turntable means rotatably supported by said base plate means, further comprises a slide means slidingly supported by said first turntable means, and further a second turntable means rotatably supported by said slide means, and that said second turntable means is provided with an elongated carrier means supporting a guide pulley means of said cable means.
Claim 13
Dependent Claim
272 words
The apparatus as defined in claim 11, wherein said annular base plate means is supported by a plurality of leg means straddling said bore hole or said trench, and is provided further with a first toothed pinion coupled to a pinion drive means, further that said first turntable means comprises a circular plate means having a toothed rim, whereby said first pinion engages into said toothed rim such that upon rotation of said first pinion said first turntable means rotates relative to said base plate means, further that said circular plate means of said first turntable means is provided with two parallel slide rail means and a toothed rack means extending alongside one of said slide rail means and an elongated opening being arranged between said two slide rail means, further that slide means is carried and guided by said slide rail means and is provided with a second toothed pinion coupled to a second pinion drive means, whereby said pinion engages into said toothed rack, such that upon rotation of said second pinion said slide means is shifted along said slide rail means, further that said slide means is provided with a third toothed pinion coupled to a third pinion drive means and that there is provided a second turntable means having an annular toothed rack, whereby said third toothed pinion engages into said annular toothed rack, such that upon rotation of said third toothed pinion said second turntable means rotates relative to said slide means, and in that said elongated carrier means extends through said elongated opening such that said guide pulley means is located below said base plate means.
Claim 14
Dependent Claim
109 words
The apparatus as defined in claim 1, wherein said instrument means comprises two elongated fastener means arranged at a distance from each other for engaging into said cable means at two distant points, which fastener means are lengthwise axially divided into two halves, further in that there are provided a clamping means each for said fastener means, which clamping means are in turn divided in two halves, whereby the corresponding halves of each of said clamping means are rigidly connected to each other by a frame member, and in that at least one of said two clamping means is provided with two level means extending orthogonally to each other.
Claim 15
Dependent Claim
104 words
The apparatus as defined in claim 13, wherein each of said two fastener means comprise a longitudinally extending bore provided with three longitudinally extending protrusions, each having a machined surface area for engagement into said cable means, and each of said two fastener means is provided with two circumferentially extending outer ribs arranged at a distance from each other for locating said clamping means therebetween, and wherein the mating surfaces of said halves of said clamping means extend in axial direction of said cable means and in that there are provided at each said clamping means two screw bolts connecting said two halves together.
Claim 16
Dependent Claim
73 words
The apparatus as defined in claim 14, wherein said clamping means is provided with a central opening, further in that there is provided an insert means split in two halves, which insert means is located within said central opening and whereby said fastener means is located in turn within said insert, such that a clamping force exerted by said clamping means is transferred by means of said insert means onto said fastener means.
Claim 17
Dependent Claim
49 words
The apparatus as defined in claim 15, wherein said insert means comprises two diametrically opposed cylindric outer surface sections and in that said central opening in said clamping means comprises two diametrically opposed cylindric inner surface sections, such that said insert means are rotatably arranged within said clamping means.
Claim 18
Dependent Claim
14 words
The apparatus as defined in claim 1, wherein said body is a prismatic body.
References Cited (Backward Citations)
GB190103859A
Cited
US3348315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |