Patent US3782228A successfully refreshed from Google Patents.
US3782228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and machine for scalping rod stock
Assignee: Individual
•
Filing: 1971-04-13
•
Granted: 1974-01-01
•
Expires: 1991-04-13
Abstract
Abstract A method and machine for scalping solid or tubular rod stock by means of a cutter head revolving about and movable along a nonrotatable piece of said stock, in which this machine is also provided with at least one flaw testing apparatus which detects the possible presence of flaws in the piece of stock at least during a first scalping run of the cutter head so that during one or more subsequent runs the flaws may be eliminated. The longitudinal movement of the cutter head is preferably reversible at the end of each run and the machine is in this case provided with two flaw testing apparatus each of which searches for flaws remaining in the workpiece after just being scalped in the respective run. Each cutter in the cutter head must then be provided with left and right cutting edges and preferably with an intermediate smoothing edge. If the machine is provided with a flaw testing apparatus which not only detects flaws during the first scalping run of the cutter head but also determines the depth at least of the deepest flaw, the cutters will be adjusted accordingly at the end of the first run, so that during the second scalping run a layer of a sufficient thickness will be removed from the workpiece so as to leave it at least substantially flawless.
Inventors
- 👤 W Lindemann
- 👤 H Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/08; B23B5/12; Y; Y10; Y10T; Y10T82/00; Y10T82/10; Y10T82/25; Y10T82/2527
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A scalping machine for scalping solid or tubular rod stock comprising means for nonrotatably mounting a piece of said stock, a rotary cutter head containing at least one radially adjustable cutter and adapted To revolve about said piece and to scalp the same, means for moving said cutter head and said piece longitudinally relative to each other so as to scalp said piece from one end to the other, and flaw testing means on said machine for detecting flaws which might be present in said piece.
Claim 2
Dependent Claim
86 words
A scalping machine for scalping solid or tubular rod stock comprising means for nonrotatably mounting a piece of said stock, a rotary cutter head containing at least one radially adjustable cutter and adapted To revolve about said piece and to scalp the same, means for moving said cutter head and said piece longitudinally relative to each other so as to scalp said piece from one end to the other, and flaw testing means on said machine for detecting flaws which might be present in said piece.
Claim 3
Dependent Claim
47 words
A scalping machine as defined in claim 1, in which said flaw testing means are adapted to detect flaws in said piece during said relative longitudinal movement between said piece and said cutter head and at least shortly after any part of said piece has been scalped.
Claim 4
Dependent Claim
24 words
A scalping machine as defined in claim 2, in which at least a part of said testing means is located within said cutter head.
Claim 5
Dependent Claim
24 words
A scalping machine as defined in claim 3, in which at least said part of said testing means is rotatable with said cutter head.
Claim 6
Dependent Claim
102 words
A scalping machine for scalping solid or tubular rod stock comprising means for mounting a piece of said stock in said machine so as to be nonrotatable as well as immovable in its axial direction, a rotary cutter head containing at least one radially adjustable cutter, means for revolving said cutter head about said piece and to move said cutter head back and forth longitudinally from one end of said piece to the other, said cutter in said cutter head being designed so as to be capable of scalping said piece during said longitudinal movement of said cutter head in each direction.
Claim 7
Dependent Claim
102 words
A scalping machine for scalping solid or tubular rod stock comprising means for mounting a piece of said stock in said machine so as to be nonrotatable as well as immovable in its axial direction, a rotary cutter head containing at least one radially adjustable cutter, means for revolving said cutter head about said piece and to move said cutter head back and forth longitudinally from one end of said piece to the other, said cutter in said cutter head being designed so as to be capable of scalping said piece during said longitudinal movement of said cutter head in each direction.
Claim 8
Dependent Claim
69 words
A scalping machine as defined in claim 1, in which said means for moving said cutter head and said piece of stock longitudinally relative to each other are adapted to carry out said movement back and forth from one end of said piece to the other, said cutter in said cutter head being designed so as to be capable of scalping said piece during said movement in each direction.
Claim 9
Dependent Claim
26 words
A scalping machine as defined in claim 6, in which said cutter has left and right cutting edges and a smoothing edge intermediate said cutting edges.
Claim 10
Dependent Claim
52 words
A scalping machine as defined in claim 6, in which said flaw detecting means comprise two flaw detecting devices each being adapted to detect flaws in said piece shortly subsequent to the place of engagement of said cutter with said piece during the scalping action of said cutter in each longitudinal direction.
Claim 11
Dependent Claim
74 words
A scalping machine as defined in claim 8, in which said means for nonrotatably mounting a piece of said stock are also adapted to hold said piece in a fixed position in the longitudinal directions thereof, and in which said cutter head is adapted to revolve about said piece and to move along and to scalp the same from one end to the other first in one and thereafter in the opposite longitudinal direction.
Claim 12
Dependent Claim
105 words
A scalping machine as defined in claim 1, in which said flaw testing means are adapted to determine the depth of flaws in said piece of stock during a first scalping operation of said cutter along said piece, and control means being responsive to said testing means for radially adjusting said cutter when said first scalping operation is completed in accordance with the depth of the deepest flaw determined so that by a second scalping operation on said piece from either end thereof to the other a layer such a thickness will be removed from said piece that said deepest flaw will be substantially eliminated.
Claim 13
Dependent Claim
65 words
A scalping machine as defined in claim 1, further comprising means responsive to said flaw testing means for changing during a scalping operation the relative longitudinal rate of feed between said piece and said cutter head for a short time from the normal rate, whereby the location of a flaw detected by said testing means will be marked on the scalped surface of said piece.
References Cited (Backward Citations)
US1973801A
Cited
US2328002A
Cited
US2656714A
Cited
US3121324A
Cited
US3262123A
Cited
US3371524A
Cited
US3486403A
Cited
US3589218A
Cited
US3553570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |