Patent US3773387A successfully refreshed from Google Patents.
US3773387A
Expired / Lapsed
US
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Tool with sweeping movement for a continuous boring or cutting machine
Assignee: BLANZY OUEST UNION INDLE
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Filing: 1971-06-14
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Granted: 1973-11-20
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Expires: 1991-06-14
Abstract
Abstract A plurality of individual tools mounted on a rotating head of a continuous drilling machine are each supported by a tool holder which is angularly oscillated at constant amplitude about an axis perpendicular in space to that of the rotating head. The oscillating axis for each tool is at the same radius with respect to the axis of the rotating head, and the oscillatory movement of each tool holder is circumferentially offset with respect to the other tool holders to insure the simultaneous sweeping of four concentric zones corresponding to the advance of conical form of the cutting front. Means are provided to exert periodic forces to produce a discontinuous advance of the tool upon each change in the direction of movement of the tool holder.
Inventors
- 👤 M Montacie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:33
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/11; E21D9/112; E21D9/115; E21D9/1086
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
A continuous boring or cutting machine comprising: a supporting means, a rotating head mounted on said supporting means for rotation about a first axis; a tool holder mounted on said rotating head for rotation about a second axis; and a cutting tool mounted on said tool holder, said cutting tool having a cutting edge substantially perpendicular to a third axis, said third axis being orthogonal in space to said second axis and at an angle to said first axis which varies with the rotational motion of said tool holder about said second axis.
Claim 2
Dependent Claim
93 words
A continuous boring or cutting machine comprising: a supporting means, a rotating head mounted on said supporting means for rotation about a first axis; a tool holder mounted on said rotating head for rotation about a second axis; and a cutting tool mounted on said tool holder, said cutting tool having a cutting edge substantially perpendicular to a third axis, said third axis being orthogonal in space to said second axis and at an angle to said first axis which varies with the rotational motion of said tool holder about said second axis.
Claim 3
Dependent Claim
23 words
A continuous boring or cutting machine as claimed in claim 1 wherein said second axis is orthogonal in space to said first axis.
Claim 4
Dependent Claim
26 words
A continuous boring or cutting machine as claimed in claim 1 wherein said cutting tool is a disc mounted for free rotation about said third axis.
Claim 5
Dependent Claim
30 words
A continuous boring or cutting machine as claimed in claim 1 wherein the rotation of said tool holder about said second axis is an oscillatory sweeping movement over an arc.
Claim 6
Dependent Claim
48 words
A continuous boring or cutting machine as claimed in claim 4 wherein a single cutting tool is mounted by itself on said rotating head and the angle subtending said arc is equal to the total attack angle of the cutting front necessary for continuous working of said machine.
Claim 7
Dependent Claim
140 words
A continuous boring or cutting machine as claimed in claim 4 wherein the number of cutting tools is at least two and said machine further comprises: means for limiting the angle of oscillation of each tool holder to an angle equal to or slightly greater than the total angle necessary for attacking the cutting front divided by the number of tools mounted on said rotating head and means for effecting said oscillatory sweeping movement of each tool holder such that the portion of the cutting front swept by each tool holder is circumferentially offset with respect to the portion of the cutting front swept by each of the other said tool holders, thereby causing multiple concentric portions of the cutting front to be swept over by the cutting tools during the rotation of said rotating head about said first axis.
Claim 8
Dependent Claim
35 words
A continuous boring machine as claimed in claim 6 wherein said tool holders carried by said rotating head are distributed at equal angles circumferentially with respect to said rotating head to equalize the load thereon.
Claim 9
Dependent Claim
38 words
A continuous boring or cutting machine as claimed in claim 4 and further including means disposed on said rotating head for driving said tool holder in oscillatory sweeping movement and means for supplying energy to said driving means.
Claim 10
Dependent Claim
28 words
A continuous boring or cutting machine as claimed in claim 8 wherein said means for driving said tool holder in oscillatory sweeping movement comprises a double-acting hydraulic jack.
Claim 11
Dependent Claim
49 words
A continuous boring or cutting machine as claimed in claim 9 and further including a gear pump for delivering hydraulic fluid under pressure to said double-acting hydraulic jack and means for reversing the direction of rotation of said gear pump to cause reversal of movement of said hydraulic jack.
Claim 12
Dependent Claim
42 words
A continuous boring or cutting machine as claimed in claim 10 and further comprising: a motor for driving said gear pump and means for reversing the direction of rotation of said motor to reverse the direction of rotation of said gear pump.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |