Patent US3929378A successfully refreshed from Google Patents.
US3929378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mining machine
Assignee: Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
•
Filing: 1974-05-02
•
Granted: 1975-12-30
•
Expires: 1994-05-02
Abstract
Abstract A mining machine includes a propelled chassis for movement along a mine floor toward a facade of the mine. A cutter head is rotatably carried by a beam that is, in turn, supported by the chassis for universal movement whereby the beam is positioned about a horizontal axis spaced above the chassis and about a vertical axis passing through the chassis. The universal support for the beam is laterally spaced from the longitudinal center plane of the chassis. A conveyor includes a curved section that is supported at the other side of the chassis. An ore loading scoop with a downwardly-sloping end includes mechanical arms which move the ore to the receiving end of the conveyor. The ore is conveyed to the rear of the chassis along the curved section at one lateral side of the chassis to the rear thereof where the discharge end of the conveyor is movable from the central plane of the chassis.
Inventors
- 👤 Pal Frenyo
- 👤 Wilhelm Bicker
- 👤 Werner Hellmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:40
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/1006; E21D9/1013; E21D9/102; E21D9/1026
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
304 words
A mining machine adapted to move along a mine floor relative to a facade of a mine, said mining machine comprising in combination: a propulsion means including a chassis for movement along the mine floor relative to a facade of the mine, said chassis having two lateral sides lying symmetrically at opposite sidEs of a longitudinal plane extending along the center of the chassis; a cutter head for working upon the facade of the mine; a support beam for carrying said cutter head; a universal support carried by said chassis at one lateral side thereof and spaced from said longitudinal plane of the chassis, said universal support including means to pivotally position said support beam about a horizontal axis spaced above the chassis, said universal support further including means to pivotally position said support beam about a vertical axis passing through the chassis at a horizontally spaced location from said longitudinal plane of the chassis; a loading scoop supported by said chassis and including a projecting ore receiving surface sloped in a downward direction toward the mine floor outwardly of the chassis, said loading scoop having a central ore discharge surface intersected by said longitudinal plane of the chassis; and a conveyor extending along said chassis for conveying ore in the general direction away from said cutting head, said conveyor essentially having an ore receiving end intersected by said longitudinal plane of the chassis, said ore receiving end being disposed in an ore transferring relation with the ore discharge surface of said loading scoop, said conveyor essentially including a laterally-curved conveyor section supported by said chassis at the second of said two lateral sides of said longitudinal plane in a manner such that the laterally-curved conveyor section extends below said horizontal axis and spaced laterally from both said horizontal axis and said longitudinal plane.
Claim 2
Dependent Claim
304 words
A mining machine adapted to move along a mine floor relative to a facade of a mine, said mining machine comprising in combination: a propulsion means including a chassis for movement along the mine floor relative to a facade of the mine, said chassis having two lateral sides lying symmetrically at opposite sidEs of a longitudinal plane extending along the center of the chassis; a cutter head for working upon the facade of the mine; a support beam for carrying said cutter head; a universal support carried by said chassis at one lateral side thereof and spaced from said longitudinal plane of the chassis, said universal support including means to pivotally position said support beam about a horizontal axis spaced above the chassis, said universal support further including means to pivotally position said support beam about a vertical axis passing through the chassis at a horizontally spaced location from said longitudinal plane of the chassis; a loading scoop supported by said chassis and including a projecting ore receiving surface sloped in a downward direction toward the mine floor outwardly of the chassis, said loading scoop having a central ore discharge surface intersected by said longitudinal plane of the chassis; and a conveyor extending along said chassis for conveying ore in the general direction away from said cutting head, said conveyor essentially having an ore receiving end intersected by said longitudinal plane of the chassis, said ore receiving end being disposed in an ore transferring relation with the ore discharge surface of said loading scoop, said conveyor essentially including a laterally-curved conveyor section supported by said chassis at the second of said two lateral sides of said longitudinal plane in a manner such that the laterally-curved conveyor section extends below said horizontal axis and spaced laterally from both said horizontal axis and said longitudinal plane.
Claim 3
Dependent Claim
26 words
The mining machine according to claim 1 further comprising two ore loading arms laterally spaced from said longitudinal central plane for conducting ore onto said conveyor.
Claim 4
Dependent Claim
68 words
The mining machine according to claim 2 wherein said chassis supports the ore discharge end of said conveyor for movement in a horizontal and a vertical direction with respect to a centrally-arranged position wherein the longitudinal central plane of the chassis intersects the discharge end of the conveyor, said cutter head being horizontally movable with respect a centrally-arranged position intersected by the longitudinal central plane of the chassis.
Claim 5
Dependent Claim
49 words
The mining machine according to claim 1 further comprising piston and cylinder assemblies supported by said chassis for displacing said beam about said vertical axis, said piston and cylinder assemblies being symmetrically arranged at opposite sides of said vertical axis and operatively connected to said beam at spaced-apart locations.
Claim 6
Dependent Claim
57 words
The mining machine according to claim 2 wherein said ore loading scoop further comprises a central scoop plate aligned with and extending outwardly from the ore removing end of said conveyor, and two side-by-side scoop plates at each side of the central scoop plate and therefore at each side of the ore receiving end of said conveyor.
Claim 7
Dependent Claim
60 words
The mining machine according to claim 5 wherein said central scoop plate lies within an area defining a trapeze shape formed by tapering side edges of said side scoop plates that are separated by a minimum distance corresponding to the width of said conveyor at the end of the central scoop plate most remote from the facade of the mine.
Claim 8
Dependent Claim
31 words
The mining machine according to claim 5 wherein one of said side-by-side scoop plates supports one of said ore loading arms at each side of said longitudinal plane of said chassis.
References Cited (Backward Citations)
US1664128A
Cited
US1659889A
Cited
US1406660A
Cited
US2986384A
Cited
US3169796A
Cited
US3141703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |