US3676959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for repairing defects in metallic workpieces by automatic means
Assignee: Individual
•
Filing: 1970-06-29
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Granted: 1972-07-18
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Expires: 1990-06-29
Abstract
Abstract The present invention relates to means for repairing defects in metallic workpieces, such as billets, which means are controlled by stored defect responsive information provided during the nondestructive test process. The nondestructive test apparatus provides defect responsive signals which are recorded and stored by storage means and subsequently recalled from the storage means for actuating defect repair means, such as a grinding wheel, engaging the workpiece at the defect location.
Inventors
- 👤 Freiderich M O Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
B; B21; B21C; B21C51/00; G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/20; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/3042
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
356 words
An apparatus for repairing defects in a billet comprising: A. means for subjecting a billet to translating motion and passing it sequentially past a magnetographic test device and a repair station spaced a predetermined distance from one another; B. said magnetographic test device including: 1. magnetic recording means having an endless belt; 2. means for rolling said belt longitudinally along the surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with said surface, whereby magnetic stray fields responsive to defects in the billet manifest at said surface are recorded upon said belt; 3. a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface; 4. motive means coupled for rotating said disk about its centEr; 5. a sensing means disposed at the periphery of said disk for receiving signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes an input means, an output means and a plurality of serially coupled stages connected therebetween; E. means coupling said sensing means to said input means of said shift register; F. repair means adapted to operate, when actuated, on the billet disposed at said repair station and coupled to said output means, and G. means responsive to the translational motion of the billet coupled to said shift register for providing a control signal which causes said stages to shift a received signal from said input means to said output means in step with the motion of a defect in the billet from said test device to said repair station for causing actuation of said repair means when such defect is disposed at said repair station.
Claim 2
Independent Claim
356 words
An apparatus for repairing defects in a billet comprising: A. means for subjecting a billet to translating motion and passing it sequentially past a magnetographic test device and a repair station spaced a predetermined distance from one another; B. said magnetographic test device including: 1. magnetic recording means having an endless belt; 2. means for rolling said belt longitudinally along the surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with said surface, whereby magnetic stray fields responsive to defects in the billet manifest at said surface are recorded upon said belt; 3. a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface; 4. motive means coupled for rotating said disk about its centEr; 5. a sensing means disposed at the periphery of said disk for receiving signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes an input means, an output means and a plurality of serially coupled stages connected therebetween; E. means coupling said sensing means to said input means of said shift register; F. repair means adapted to operate, when actuated, on the billet disposed at said repair station and coupled to said output means, and G. means responsive to the translational motion of the billet coupled to said shift register for providing a control signal which causes said stages to shift a received signal from said input means to said output means in step with the motion of a defect in the billet from said test device to said repair station for causing actuation of said repair means when such defect is disposed at said repair station.
Claim 3
Dependent Claim
57 words
means for rolling said belt longitudinally along the surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with said surface, whereby magnetic stray fields responsive to defects in the billet manifest at said surface are recorded upon said belt;
Claim 4
Dependent Claim
57 words
means for rolling said belt longitudinally along the surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with said surface, whereby magnetic stray fields responsive to defects in the billet manifest at said surface are recorded upon said belt;
Claim 5
Dependent Claim
66 words
means for rolling said belt longitudinally along said surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with a transverse portion of said surface spanning said zones, whereby magnetic stray fields responsive to defects in the billet manifest at said surface portion are recorded upon said belt portion;
Claim 6
Dependent Claim
66 words
means for rolling said belt longitudinally along said surface of the billet as the billet is translated past said test device, said means for rolling causing a portion of said belt to be in contact with a transverse portion of said surface spanning said zones, whereby magnetic stray fields responsive to defects in the billet manifest at said surface portion are recorded upon said belt portion;
Claim 7
Dependent Claim
42 words
An apparatus for repairing defects in a billet as set forth in claim 1, said billet having at least one flat surface, said endless belt being in contact with said flat surface, and said repair means disposed to engage said flat surface.
Claim 8
Independent Claim
61 words
An apparatus for repairing a defect in the surface of an elongate billet, said surface being divided into a plurality of parallel longitudinal zones comprising: A. means for subjecting the billet to continuing translating motion for passing it sequentially past a magnetographic test device and a repair station spaced a predetermined distance from one another; B. said magnetographic test device including:
Claim 9
Independent Claim
61 words
An apparatus for repairing a defect in the surface of an elongate billet, said surface being divided into a plurality of parallel longitudinal zones comprising: A. means for subjecting the billet to continuing translating motion for passing it sequentially past a magnetographic test device and a repair station spaced a predetermined distance from one another; B. said magnetographic test device including:
Claim 10
Dependent Claim
53 words
a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface;
Claim 11
Dependent Claim
53 words
a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface;
Claim 12
Dependent Claim
53 words
a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface;
Claim 13
Dependent Claim
53 words
a rotatable scanning disk disposed to engage the width of said belt along a line transverse to the motion of the billet between said device and said station, said scanning disk being disposed to be in contact with a portion of said belt after such portion has been in contact with said surface;
Claim 14
Dependent Claim
10 words
motive means coupled for rotating said disk about its centEr;
Claim 15
Dependent Claim
10 words
motive means coupled for rotating said disk about its centEr;
Claim 16
Dependent Claim
10 words
motive means coupled for rotating said disk about its center;
Claim 17
Dependent Claim
10 words
motive means coupled for rotating said disk about its center;
Claim 18
Dependent Claim
138 words
An apparatus for repairing defects in a billet as set forth in claim 3, said repair means comprising grinding means, said grinding means being disposed in a staggered array in the respective zones, the longitudinal distance between two adjacent grinding means being the ratio of a.A/n wherein: a is a multiple integer of the ratio A/n; A equals the distance between said belt and billet surface and the position of the rearmost grinding means; n is the quantity of serially coupled stages of the register channel associated with the rearmost positioned grinding means and is equal also to a selected quantity of longitudinal distance increments of the billet into which the distance A is divided; and means causing said further control means to provide said cyclic control signal whenever the billet has moved by a distance increment A/n.
Claim 19
Dependent Claim
50 words
An apparatus for repairing defects in a billet as set forth in claim 3, and amplifier means including means coupled in circuit with said sensing means and said gate means for providing a signal to said gate means when a signal produced by said sensing means exceeds a predetermined value.
Claim 20
Dependent Claim
336 words
a sensing means disposed at the periphery of said disk for producing signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed in proximity to said belt for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes a plurality of channels corresponding to the quantity of zones, each channel being associated with a respective zone and having an input means, an output means and a plurality of serially coupled stages connected between the respective input means and output means; E. a gate means coupled to said shift register input means; F. means coupling said sensing means to said gate means; G. control means associated with said disk and coupled to said gate means to cause during rotation of said disk signals produced by said sensing means to be transferred to the respective channel which is associated with the zone having the defect which causes the existence of such signal; H. said repair station including a plurality of independently operable repair means, one for each of said zones, and each such repair means including means for actuating the associated repair means to cause the respective repair means to operate upon the surface portion of the billet of the associated zone; I. means coupliNg each of said means for actuating to the output means of the associated channel, and J. further control means disposed for engaging the billet and coupled to each of said channels for providing a cyclic control signal corresponding to the translational motion of the billet for causing said stages to shift a received signal from the respective input means through the associated stages to the output means in step with the translating motion of the billet, to cause actuation of the respective repair means when a defect disposed in the respective zone of the billet as originally recorded by said belt is disposed for repair by such respective repair means.
Claim 21
Dependent Claim
336 words
a sensing means disposed at the periphery of said disk for producing signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed in proximity to said belt for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes a plurality of channels corresponding to the quantity of zones, each channel being associated with a respective zone and having an input means, an output means and a plurality of serially coupled stages connected between the respective input means and output means; E. a gate means coupled to said shift register input means; F. means coupling said sensing means to said gate means; G. control means associated with said disk and coupled to said gate means to cause during rotation of said disk signals produced by said sensing means to be transferred to the respective channel which is associated with the zone having the defect which causes the existence of such signal; H. said repair station including a plurality of independently operable repair means, one for each of said zones, and each such repair means including means for actuating the associated repair means to cause the respective repair means to operate upon the surface portion of the billet of the associated zone; I. means coupliNg each of said means for actuating to the output means of the associated channel, and J. further control means disposed for engaging the billet and coupled to each of said channels for providing a cyclic control signal corresponding to the translational motion of the billet for causing said stages to shift a received signal from the respective input means through the associated stages to the output means in step with the translating motion of the billet, to cause actuation of the respective repair means when a defect disposed in the respective zone of the billet as originally recorded by said belt is disposed for repair by such respective repair means.
Claim 22
Dependent Claim
180 words
a sensing means disposed at the periphery of said disk for receiving signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes an input means, an output means and a plurality of serially coupled stages connected therebetween; E. means coupling said sensing means to said input means of said shift register; F. repair means adapted to operate, when actuated, on the billet disposed at said repair station and coupled to said output means, and G. means responsive to the translational motion of the billet coupled to said shift register for providing a control signal which causes said stages to shift a received signal from said input means to said output means in step with the motion of a defect in the billet from said test device to said repair station for causing actuation of said repair means when such defect is disposed at said repair station.
Claim 23
Dependent Claim
180 words
a sensing means disposed at the periphery of said disk for receiving signals responsive to the recorded stray fields on said belt as said sensing means passes over said belt; C. means disposed for erasing the recordings on said belt after said belt has been scanned by said sensing means; D. a shift register which includes an input means, an output means and a plurality of serially coupled stages connected therebetween; E. means coupling said sensing means to said input means of said shift register; F. repair means adapted to operate, when actuated, on the billet disposed at said repair station and coupled to said output means, and G. means responsive to the translational motion of the billet coupled to said shift register for providing a control signal which causes said stages to shift a received signal from said input means to said output means in step with the motion of a defect in the billet from said test device to said repair station for causing actuation of said repair means when such defect is disposed at said repair station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |