US3926026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat die thread rolling machine
Assignee: WARREN M JACKSON Inc
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Filing: 1974-11-20
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Granted: 1975-12-16
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Expires: 1994-11-20
Abstract
Abstract The stationary die of the machine is supported on a stack of four relatively adjustable members which may be quickly and easily adjusted to position the stationary die with respect to the movable die and establish the proper alinement, transverse spacing, squeeze and taper angles between the dies.
Inventors
- 👤 Warren M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:10
CPC Classifications
B; B21; B21H; B21H3/00; B21H3/02; B21H3/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
307 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong; means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a first path extending in the same general direction as said thread forming elements; mechanism for feeding a fastener blank between said dies each time said movable die is in said first position; and means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting meanS comprising a first member mounted on said support for back and forth linear adjustment along a path extending substantially parallel to said first path thereby to enable adjustment of the longitudinal alinement of the thread forming elements of said dies, a second member mounted on said first member for back and forth angular adjustment relative to said first member about an axis extending substantially perpendicular to said first path thereby to enable adjustment of the squeeze angle between the thread forming elements of said dies, a third member mounted on said second member for back and forth linear adjustment relative to said second member along a path extending substantially perpendicular to said first path thereby to enable adjustment of the transverse spacing between the thread forming elements of said dies, and a fourth member carrying said stationary die and mounted on said third member for back and forth angular adjustment relative to said third member about an axis extending substantially parallel to said first path thereby to enable adjustment of the taper angle between the thread forming elements of said dies; and said feeding mechanism being mounted on said third member and being adjusted with said stationary die whenever said first, second or third members are adjusted.
Claim 2
Dependent Claim
307 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong; means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a first path extending in the same general direction as said thread forming elements; mechanism for feeding a fastener blank between said dies each time said movable die is in said first position; and means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting meanS comprising a first member mounted on said support for back and forth linear adjustment along a path extending substantially parallel to said first path thereby to enable adjustment of the longitudinal alinement of the thread forming elements of said dies, a second member mounted on said first member for back and forth angular adjustment relative to said first member about an axis extending substantially perpendicular to said first path thereby to enable adjustment of the squeeze angle between the thread forming elements of said dies, a third member mounted on said second member for back and forth linear adjustment relative to said second member along a path extending substantially perpendicular to said first path thereby to enable adjustment of the transverse spacing between the thread forming elements of said dies, and a fourth member carrying said stationary die and mounted on said third member for back and forth angular adjustment relative to said third member about an axis extending substantially parallel to said first path thereby to enable adjustment of the taper angle between the thread forming elements of said dies; and said feeding mechanism being mounted on said third member and being adjusted with said stationary die whenever said first, second or third members are adjusted.
Claim 3
Dependent Claim
229 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong; means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a first path extending in the same general direction as said thread forming elements; mechanism for feeding a fastener blank between said dies each time said movable die is in said first position; and means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting means comprising first and second members mounted for back and forth linear adjustment along paths extending substantially parallel and perpendicular, respectively, to said first path thereby to enable adjustment of the longitudinal alinement and transverse spacing, respectively, between the thread forming elements of said dies, third and fourth members mounted for back and forth angular adjustment about axes extending substantially perpendicular and parallel, respectively, to said first path thereby to enable adjustment of the squeeze angle and taper angle, respectively, between the thread forming elements of said dies; and one of said members carrying said stationary die and being supported on the other three members so as to be adjusted whenever any of the other three members is adjusted and to undertake the same movement as the other adjusted member.
Claim 4
Dependent Claim
229 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong; means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a first path extending in the same general direction as said thread forming elements; mechanism for feeding a fastener blank between said dies each time said movable die is in said first position; and means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting means comprising first and second members mounted for back and forth linear adjustment along paths extending substantially parallel and perpendicular, respectively, to said first path thereby to enable adjustment of the longitudinal alinement and transverse spacing, respectively, between the thread forming elements of said dies, third and fourth members mounted for back and forth angular adjustment about axes extending substantially perpendicular and parallel, respectively, to said first path thereby to enable adjustment of the squeeze angle and taper angle, respectively, between the thread forming elements of said dies; and one of said members carrying said stationary die and being supported on the other three members so as to be adjusted whenever any of the other three members is adjusted and to undertake the same movement as the other adjusted member.
Claim 5
Dependent Claim
35 words
A thread rolling machine as defined in claim 2 in which said feeding mechanism is carried on one of said members and is adjusted whenever such member or two of the other members are adjusted.
Claim 6
Dependent Claim
42 words
A thread rolling machine as defined in claim 2 further including a pivot element mounting said third member for swinging about said perpendicular axis, such axis coinciding substantially with the effective leading edges of the thread forming elements of said stationary die.
Claim 7
Dependent Claim
179 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong, means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a path extending in the same general direction as said thread forming elements, mechanism for feeding a fastener blank between said dies each time said movable die is in said first position, means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting means comprising a member carrying said stationary die and mounted on said support to swing about a pivot element having an aXis extending substantially perpendicular to said path and coinciding substantially with the effective leading edges of the thread forming elements of said stationary die thereby to enable adjustment of the squeeze angle between said dies, and means for selectively swinging said member back and forth about said axis and for locking said member in a fixed position relative to said axis.
Claim 8
Dependent Claim
179 words
A flat die thread rolling machine comprising a support; stationary and movable dies on said support and having opposed faces with thread forming elements extending therealong, means for reciprocating said movable die back and forth relative to said stationary die between first and second positions and along a path extending in the same general direction as said thread forming elements, mechanism for feeding a fastener blank between said dies each time said movable die is in said first position, means mounting said stationary die on said support for selective adjustment relative to said movable die, said mounting means comprising a member carrying said stationary die and mounted on said support to swing about a pivot element having an aXis extending substantially perpendicular to said path and coinciding substantially with the effective leading edges of the thread forming elements of said stationary die thereby to enable adjustment of the squeeze angle between said dies, and means for selectively swinging said member back and forth about said axis and for locking said member in a fixed position relative to said axis.
Claim 9
Dependent Claim
54 words
A thread rolling machine as defined in claim 5 in which a hole is formed through said member at a location spaced from said axis, a pin rigid with said support and projecting into said hole, said last-mentioned means comprising a pair of elements adjustably threaded into said member and engageable with said pin.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |