Patent US3873157A successfully refreshed from Google Patents.
US3873157A
Expired / Lapsed
US
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Mobile mine tunnelling machine having cooperable cutter, trough, loader and converyors
Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
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Filing: 1972-12-06
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Granted: 1975-03-25
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Expires: 1992-12-06
Abstract
Abstract A machine for use in tunnelling or mining installations and having a beam carrying a cutting device for acting on a working face. The beam is supported by a displaceable chassis for movement upwardly and downwardly and transversally. An inclined trough is disposed beneath the beam to receive material detached from the face. A scraper-chain conveyor is rigidly connected to each side of the trough and a loading plate is used to transfer material from the trough to the conveyors. Each conveyor has an inclined section extending alongside the trough and adjoining an elevated horizontal section supported by support means enabling the conveyor to pivot at least about an axis extending laterally of the longitudinal axis of the conveyor to allow the trough to be raised and lowered.
Inventors
- 👤 Wilhelm Stoltefuss
- 👤 Egon Melis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:45
CPC Classifications
E; E21; E21C; E21C25/00; E21C25/68; E21D; E21D9/00; E21D9/10; E21D9/1006; E21D9/1013; E21D9/102; E21D9/1026; E21D9/12
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
91 words
A machine for use in tunnelling or mining; said machine comprising: a chassis, mobile support means for rendering the chassis displaceable, means for detaching material from a working face; means for supporting the detaching means for movement in two mutually-perpendicular planes relative to the chassis, a trough for receiving the material detached from the face, a conveyor located at each side of the trough for conveying the material rearwardly from the face and a separate loading device which is movable to transfer material from said trough to the conveyors in alternation.
Claim 2
Dependent Claim
91 words
A machine for use in tunnelling or mining; said machine comprising: a chassis, mobile support means for rendering the chassis displaceable, means for detaching material from a working face; means for supporting the detaching means for movement in two mutually-perpendicular planes relative to the chassis, a trough for receiving the material detached from the face, a conveyor located at each side of the trough for conveying the material rearwardly from the face and a separate loading device which is movable to transfer material from said trough to the conveyors in alternation.
Claim 3
Dependent Claim
20 words
A machine according to claim 1, wherein the trough is inclined upwardly in a direction away from the working face.
Claim 4
Dependent Claim
24 words
A machine according to claim 1, wherein each conveyor has an inclined section extending at substantially the same angle of inclination as the trough.
Claim 5
Dependent Claim
29 words
A machine according to claim 3, wherein each conveyor has a horizontal section adjoining said inclined section, the horizontal section being supported by support means in an elevated position.
Claim 6
Dependent Claim
16 words
A machine according to claim 4, wherein the conveyors are supported by a common support means.
Claim 7
Dependent Claim
17 words
A machine according to claim 4, wherein each conveyor is displaceable in relation to said support means.
Claim 8
Dependent Claim
26 words
A machine according to claim 6, wherein each conveyor is displaceable in a longitudinal direction and pivoted about an axis extending perpendicularly to said longitudinal direction.
Claim 9
Dependent Claim
20 words
A machine according to claim 7, wherein each conveyor is pivotable about an axis extending parallel to said longitudinal direction.
Claim 10
Dependent Claim
28 words
A machine according to claim 8, wherein the support means includes a roller having a peripheral groove receiving an elongate member attached to the associated conveyor or conveyors.
Claim 11
Dependent Claim
21 words
A machine according to claim 1, wherein the conveyors converge in plan view in a direction away from the working face.
Claim 12
Dependent Claim
36 words
A machine according to claim 1, wherein the loading device is in the form of a plate pivotably mounted on the trough and there is provided means for oscillating the plate in relation to the trough.
Claim 13
Dependent Claim
33 words
A machine according to claim 11, wherein the plate has a central region of greater thickness than the side regions to form ramp-like guide surfaces inclined downwardly towards the sides of the trough.
Claim 14
Dependent Claim
17 words
A machine according to claim 11, wherein deflecting elements are provided at the sides of the plate.
Claim 15
Dependent Claim
26 words
A machine according to claim 1, wherein the loading device is in the form of a plate carried by the support means of the detaching means.
Claim 16
Dependent Claim
18 words
A machine according to claim 1, wherein there is further provided means for raising and lowering the trough.
Claim 17
Dependent Claim
26 words
A machine according to claim 15, wherein the raising and lowering means is in the form of floor-engageable support members actuated by piston and cylinder units.
Claim 18
Dependent Claim
28 words
A machine according to claim 1, wherein the trough is connected to the chassis via a thrust-bearing adapted to permit raising and lowering and pivoting of the trough.
Claim 19
Dependent Claim
30 words
A machine according to claim 17, wherein the thrust-bearing is in the form of a pin carried by the trough and engaging in an apertured linkage attached to the chassis.
Claim 20
Dependent Claim
48 words
A machine according to claim 1, wherein there is further provided an assembly composed of two interconnected relatively displaceable frames provided with locking devices engageable with the side wall of a tunnel or working To rigidly secure the frames, the assembly being disposed remote from the working face.
Claim 21
Dependent Claim
32 words
A machine according to claim 19, wherein the frames are provided with floor-engaging skids and at least one piston and cylinder unit is connected between the frames to effect relative displacement therebetween.
Claim 22
Dependent Claim
39 words
A machine according to claim 19, wherein each frame has two locking devices, each device being pivotably supported by the frame and there is provided a piston and cylinder unit for pivoting each device to secure the associated frame.
Claim 23
Dependent Claim
110 words
A machine for use in tunnelling or mining; said machine comprising a chassis, means for detaching material from a working face, said detaching means being supported by the chassis, a trough for receiving material detached from the face, a conveyor located on each side of the trough for conveying the material rearwardly from the faace, each conveyor having an inclined section and a substantially horizontal section adjoining said inclined section, means for supporting the horizontal section of each conveyor in an elevated position, each conveyor being displaceable in relation to said support means and a loading device for transferring material from the trough to the inclined sections of the conveyor.
Claim 24
Dependent Claim
110 words
A machine for use in tunnelling or mining; said machine comprising a chassis, means for detaching material from a working face, said detaching means being supported by the chassis, a trough for receiving material detached from the face, a conveyor located on each side of the trough for conveying the material rearwardly from the faace, each conveyor having an inclined section and a substantially horizontal section adjoining said inclined section, means for supporting the horizontal section of each conveyor in an elevated position, each conveyor being displaceable in relation to said support means and a loading device for transferring material from the trough to the inclined sections of the conveyor.
Claim 25
Dependent Claim
26 words
A machine according to claim 22, wherein each conveyor is displaceable in a longitudinal direction and pivoted about an axis extending perpendicularly to said longitudinal direction.
Claim 26
Dependent Claim
20 words
A machine according to claim 23, wherein each conveyor is pivotable about an axis extending parallel to said longitudinal direction.
Claim 27
Dependent Claim
28 words
A machine according to claim 24, wherein the support means includes a roller having a peripheral groove receiving an elongate member attached to the associated conveyor or conveyors.
Claim 28
Dependent Claim
129 words
A machine for use in mining or tunnelling operations; said machine comprising a main frame constituting a chassis, mobile support means rendering the chassis displaceable, a beam, means for supporting the beam and allowing the beam to move in horizontal and vertical planes relative to the main frame, means for detaching material from a working face, said detaching means being carried by the beam, conveyors disposed on both sides of the main frame, means for receiving material detached by the detaching means, said receiving means being connected to the conveyors, the conveyors and receiving means forming a constructional unit which is bodily displaceable in relation to the main frame, and a loading device mounted to swing to and fro over the receiving means to transfer material to said conveyors.
Claim 29
Dependent Claim
129 words
A machine for use in mining or tunnelling operations; said machine comprising a main frame constituting a chassis, mobile support means rendering the chassis displaceable, a beam, means for supporting the beam and allowing the beam to move in horizontal and vertical planes relative to the main frame, means for detaching material from a working face, said detaching means being carried by the beam, conveyors disposed on both sides of the main frame, means for receiving material detached by the detaching means, said receiving means being connected to the conveyors, the conveyors and receiving means forming a constructional unit which is bodily displaceable in relation to the main frame, and a loading device mounted to swing to and fro over the receiving means to transfer material to said conveyors.
Claim 30
Dependent Claim
31 words
A macine according to claim 26, wherein the conveyors are supported by support means and the constructional unit can pivot about said support means to raise or lower said receiving means.
Claim 31
Dependent Claim
19 words
A machine according to claim 27, wherein the conveyors can also move longitudinally in relation to said support means.
Claim 32
Dependent Claim
17 words
A machine according to claim 26, wherein the receiving means is pivotably connected to the main frame.
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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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |