Patent US3896885A successfully refreshed from Google Patents.
US3896885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for automatically aligning and/or moving in a parallel movement path a guide seating structure adapted for guiding the movement of a tool mounted thereon
Assignee: Skanska AB
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Filing: 1974-09-10
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Granted: 1975-07-29
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Expires: 1994-09-10
Abstract
Abstract The object of the invention is a system for automatically setting the angles of the guide seating structure of a rock drilling machine or the rammer of a pile driver, or a similar tool arranged for a reciprocating movement on said structure carried by a movable support and for moving the structure parallel to itself so that the angle of the structure is maintained. The structure is pivotally mounted in two substantially vertical orthogonal planes and is connected to the movable support by a movable intermediate arm provided with drive means such as jacks for pivoting movements of the structure in said two planes. Transducers are mechanically coupled to the drive means to transmit electrical signals representing angles to a comparator in response to the attitude of the guide seating structure, the intermediate arm and the seating structure to adjust the seating structure to a specific bearing and a specific angle, in said two planes, in relation to the vertical, the bearing and the specific angle being automatically maintained when said movable support carrying the guide seating structure is moved to another place even on a terrain of varying slope so that a further hole may be drilled or a further pile may be driven exactly parallel to a preceding one.
Inventors
- 👤 Carl Lennart Dahlstrom
- 👤 Tord Richard William Ponton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:00
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025; E21B7/022
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
201 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like; said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means, for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing and angle.
Claim 2
Independent Claim
201 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like; said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means, for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing and angle.
Claim 3
Dependent Claim
36 words
A system according to claim 1 wherein said comparator means includes transducer means having means for sensing the actual bearing in the horizontal plane and means for sensing the actual angle in relation to the vertical.
Claim 4
Dependent Claim
82 words
A system according to the claim 2 wherein the means for sensing the actual bearing in the horizontal plane includes a course indicator mounted on said support unit and responsive to bearing directions, said course indicator providing a preset desired bearing from which all other bearings in the horizontal plane may be determined, and further comprising a second indicator mounted between said support unit and said jib means, said second indicator resistering the angle between said support unit and said jib means.
Claim 5
Dependent Claim
47 words
A system according to claim 3 wherein the means for predetermination of the desired angle to the vertical and the desired bearing includes a first selector means for selecting the desired angle and a second selector means cooperating with said course indicator for selecting the desired bearing.
Claim 6
Dependent Claim
35 words
A system according to claim 2 wherein the means for sensing the actual bearing in the horizontal plane includes a course indicator mounted on said at least one seating structure and responsive to bearing directions.
Claim 7
Dependent Claim
42 words
A system according to claim 2 wherein the means for sensing the actual angles in the planes includes at least one pendulum means mounted on said seating structure and being active in the two planes disposed at an angle to each other.
Claim 8
Dependent Claim
136 words
A system according to claim 1 wherein the means for emitting signals responsive to the actual bearing and angle of said seating structure comprises a course and inclination transducer mounted for movement with said seating structure for producing three magnetic field signals, each of which represents three coordinate values of a coordinate system which is immovable in relation to the transducer, and corresponding to three earth field components of said coordinate system relative to a substantially fixed component of the earth''s magnetic field, and said comparator means compares the actual values represented by the said magnetic field signals with the values for the desired bearing and angle and transmits control signals representing departures between the actual and the desired values to drive said pivoting means for obtaining the desired bearing and angle of said seating structure.
Claim 9
Dependent Claim
70 words
A system according to claim 7 wherein said transducer contains three field component transducers, each comprising elements which are immovable with respect to each other and are immovable in relation to the seating structure and each of which produces component signals which are set in relation, to the said fixed components of the earth''s magnetic field so that each of said signals constitutes one of said three magnetic field signals.
Claim 10
Dependent Claim
152 words
A system according to claim 8 wherein the desired angle and bearing of said seating structure can be manually adjusted and the system determines, with the assistance of said values, the inclination of the earth''s field, and the three said magnetic field signals, the two control signals each representing one of the values: St tg gamma t - tg Beta .cos psi o Sv sin gamma v - sin gamma Beta .cos psi o for controlling said pivoting means for the seating structure to obtain the desired movement in said two planes relative to the vertical, gamma t and gamma v constituting the actual angle of said seating structure, gamma Beta being the desired angle of the seating structure, and psi o being the angle between the desired bearing Beta and the horizontal projection of the coordinate axis in said coordinate system which extends forward in the direction of said jib means.
Claim 11
Dependent Claim
82 words
A system according to claim 9 wherein the desired values for the angle gamma Beta , the bearing Beta , the said substantially fixed component of the earth''s magnetic field and the inclination of the earth''s magnetic field are capable of being adjusted manually, the two last mentioned values being capable of being preset, and the inclination being adjustable by adjustment of the vertIcal component of the earth''s magnetic field and the horizontal component to form a ratio of these two components.
Claim 12
Independent Claim
219 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means, for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing when said support unit or said jib means is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing, the means for sensing the actual bearing in the horizontal plane including a course indicator mountd on said at least one seating structure aand responsive to bearing directions.
Claim 13
Independent Claim
219 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means, for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing when said support unit or said jib means is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing, the means for sensing the actual bearing in the horizontal plane including a course indicator mountd on said at least one seating structure aand responsive to bearing directions.
Claim 14
Independent Claim
220 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical, means for emitting signals responsive to the angle of said seating structure to the vertical when said support unit or said jib means is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired angle, the means for sensing the actual angles in the planes including at least one pendulum transducer mounted on said seating structure and being active in the two planes disposed at an angle to each other.
Claim 15
Independent Claim
220 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical, means for emitting signals responsive to the angle of said seating structure to the vertical when said support unit or said jib means is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired angle, the means for sensing the actual angles in the planes including at least one pendulum transducer mounted on said seating structure and being active in the two planes disposed at an angle to each other.
Claim 16
Independent Claim
332 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing aNd angle, the means for emitting signals responsive to the actual bearing and angle of said seating structure comprising a course and inclination transducer mounted for movement with said seating structure for producing three magnetic field signals, each of which represents three coordinate values of a coordinate system which is immovable in relation to the transducer, and corresponding to three earth field components of said coordinate system relative to a substantially fixed component of the earth''s magnetic field, and said comparator means compares the actual values represented by the said magnetic field signals with the values for the desired bearing and angle and transmits control signals representing departures between the actual and the desired values to drive said pivoting means for obtaining the desired bearing and angle of said seating structure.
Claim 17
Independent Claim
332 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing aNd angle, the means for emitting signals responsive to the actual bearing and angle of said seating structure comprising a course and inclination transducer mounted for movement with said seating structure for producing three magnetic field signals, each of which represents three coordinate values of a coordinate system which is immovable in relation to the transducer, and corresponding to three earth field components of said coordinate system relative to a substantially fixed component of the earth''s magnetic field, and said comparator means compares the actual values represented by the said magnetic field signals with the values for the desired bearing and angle and transmits control signals representing departures between the actual and the desired values to drive said pivoting means for obtaining the desired bearing and angle of said seating structure.
Claim 18
Independent Claim
372 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing and angle, the means for predetermination of the desired angle to the vertical and the desired bearing including a first selector means for selecting the desired angle and a second selector means cooperating with said course indicator for selecting the desired bearing, the means for emitting signals responsive to the actual bearing and angle of said seating structure comprising a course and inclination transducer mounted for movement with said seating structure for producing three magnetic field signals, each of which represents three coordinate values of a coordinate system which is immovable in relation to the transducer, and corresponding to three earth field components of said coordinate system relative to a substantially fixed component of the earth''s magnetic field, and said comparator means compares the actual values represented by the said magnetic field signals with the values for the desired bearing and angle and transmits control signals representing departures between the actual and the desired values to drive said pivoting means for obtaining the desired bearing and angle of said seating structure.
Claim 19
Independent Claim
372 words
A system for automatically aligning at least one guide seating structure for parallel positions at different locations, said structure being adapted for guiding the movement of a tool mounted thereon as a feed beam for rock drilling machines and the like, said system comprising a movable support unit, jib means supported on said support unit, a seating structure pivotally mounted on said jib means for movement in two planes disposed at an angle to each other, means for pivoting said seating structure in each of said two planes, means for predetermination of the desired angle of said seating structure with respect to the vertical and the desired bearing of said structure with respect to the coordinates of the earth, means for emitting signals responsive to the actual bearing and angle of said seating structure to the vertical when said support unit is moved to a different location, comparator means for comparing the departure of said signals from the predetermined desired bearing and angle of said seating structure and means responsive to the departure of said signals for actuating said pivoting means in said two planes for aligning said at least one seating structure to a position parallel to the desired bearing and angle, the means for predetermination of the desired angle to the vertical and the desired bearing including a first selector means for selecting the desired angle and a second selector means cooperating with said course indicator for selecting the desired bearing, the means for emitting signals responsive to the actual bearing and angle of said seating structure comprising a course and inclination transducer mounted for movement with said seating structure for producing three magnetic field signals, each of which represents three coordinate values of a coordinate system which is immovable in relation to the transducer, and corresponding to three earth field components of said coordinate system relative to a substantially fixed component of the earth''s magnetic field, and said comparator means compares the actual values represented by the said magnetic field signals with the values for the desired bearing and angle and transmits control signals representing departures between the actual and the desired values to drive said pivoting means for obtaining the desired bearing and angle of said seating structure.
Claim 20
Dependent Claim
70 words
A system according to claim 14 wherein said transducer contains three field component transducers, each comprising elements which are immovable with respect to each other and are immovable in relation to the seating structure and each of which produces component signals which are set in relation to the said fixed component of the earth''s magnetic field so that each of said signals constitutes one of said three magnetic field signals.
Claim 21
Dependent Claim
152 words
A system according to claim 15 wherein the desired angle and bearing of said seating structure can be manually adjusted and the system determines, with the assistance of said values, the inclination of the earth''s field, and the three said magnetic field signals, the two control signals each representing one of the values: St tG gamma t - tg Beta .cos psi o Sv sin gamma v - sin gamma Beta .cos psi o for controlling said pivoting means for the seating structure to obtain the desired movement in said two planes relative to the vertical, gamma t and gamma v constituting the actual angle of said seating structure, gamma Beta being the desired angle of the seating structure, and psi o being the angle between the desired bearing Beta and the horizontal projection of the coordinate axis in said coordinate system which extends forward in the direction of said jib means.
Claim 22
Dependent Claim
82 words
A system according to claim 16 wherein the desired values for the angle gamma Beta , the bearing Beta , the said substantially fixed component of the earth''s magnetic field and the inclination of the earth''s magnetic field are capable of being adjusted manually, the two last mentioned values being capable of being preset, and the inclination being adjustable by adjustment of the vertical component of the earth''s magnetic field and the horizontal component to form a ratio of these two components.
Claim 23
Dependent Claim
223 words
A rock drilling apparatus comprising a movable support unit, an elongated jib means pivotally mounted on said support unit, a guide seating structure, pivot means between said seating structure and said jib means providing for movement of said seating structure with respect to said jib means about first and second axes, a feed beam mounted on said seating structure, a rock drilling machine mounted for powered reciprocating movement on said feed beam, hydraulically actuated power units operably connected to said jib means and said seating structure for moving said seating structure with respect to said jib means about said first and second axes; control means including angle sensing means mounted on said seating structure for movement therewith and including gravity responsive means incorporated in said sensing means for movement with respect to said seating structure in response to gravitational forces acting on said means, signal producing means for producing signals in response to the movement of said gravity responsive means with respect to said seating structure, and a control circuit including control valves interposed therein and responsive to the signals from said signal producing means for valving hydraulic fluid to said power units to move said seating structure about said first and second axes to maintain said feed beam and rock drilling machine in a predetermined angular direction in relation to the vertical.
Claim 24
Dependent Claim
223 words
A rock drilling apparatus comprising a movable support unit, an elongated jib means pivotally mounted on said support unit, a guide seating structure, pivot means between said seating structure and said jib means providing for movement of said seating structure with respect to said jib means about first and second axes, a feed beam mounted on said seating structure, a rock drilling machine mounted for powered reciprocating movement on said feed beam, hydraulically actuated power units operably connected to said jib means and said seating structure for moving said seating structure with respect to said jib means about said first and second axes; control means including angle sensing means mounted on said seating structure for movement therewith and including gravity responsive means incorporated in said sensing means for movement with respect to said seating structure in response to gravitational forces acting on said means, signal producing means for producing signals in response to the movement of said gravity responsive means with respect to said seating structure, and a control circuit including control valves interposed therein and responsive to the signals from said signal producing means for valving hydraulic fluid to said power units to move said seating structure about said first and second axes to maintain said feed beam and rock drilling machine in a predetermined angular direction in relation to the vertical.
Claim 25
Dependent Claim
26 words
A rock drilling apparatus according to claim 18 and further comprising means for maintaining the desired bearing of said seating structure with respect to said support.
Claim 26
Dependent Claim
29 words
A rock drilling apparatus according to claim 18 and further comprising means for maintaining the desired bearing of said seating structure with respect to the coordinates of the earth.
Claim 27
Dependent Claim
79 words
A rock drilling apparatus according to claim 18 and further comprising means for predetermination of the desired angle of said seating structure with respect to the vertical, comparator means for comparing the departure of said signals from the predetermined desired angle of said seating structure, and means responsive to said departure of said signals for valving hydraulic fluid to said power units for moving said seating structure with respect to said jib means about said first and second axes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |