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US3922016A
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US
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Tunnelling machine on skids with extensible wheels
Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
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Filing: 1974-05-14
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Granted: 1975-11-25
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Expires: 1994-05-14
Abstract
Abstract Tunnelling apparatus which during use is installed within tunnel lining sections and which employs a boom or jib with cutting means for detaching material from a working face to effect advancement of the tunnel. The jib is supported on a carriage which is mounted for sliding on a main frame. One or more conveyors for which the main frame serves additionally as a trough part serve to remove the detached material. The frame has skids at its sides which normally rest on the floor region of the lining sections but the frame is rendered displaceable in relation to the lining sections with the aid of wheel assemblies carried by the frame. These wheel assemblies enable the frame to move longitudinally or transversally and have mechanisms whereby the assemblies can be either operable or non-operable as desired.
Inventors
- 👤 Willy Tyslauk
- 👤 Gunther Bargel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:18
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/12; E21D9/06; E21D9/08; E21D9/0875; E21D9/10; E21D9/1093
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
245 words
A tunnelling apparatus for installation in one or more of a series of tunnel lining sections, said apparatus comprising: a. a main frame having a plurality of skids attached thereto which normally bear against said tunnel lining section; b. a jib supported by said main frame; c. means for moving the jib relative to said main frame; d. means for detaching material from a working face to effect advancement of the tunnel, said detaching means being located at the effect advancement of the tunnel, said detaching means being located at the free end of the jib; e. at least one first wheel assembly attached to said main frame capable of movement between a retracted and an extended position, such that when said first wheel assembly is in its extended position it raises said skids from said tunnel lining section and allows the frame to be displaced generally longitudinally; f. at least one second wheel assembly attached to said main frame capable of movement between a retracted and an extended position, such that when said second wheel assembly is in its extended position it raises said skids from said tunnel lining section and allows the frame to be displaced generally transversally; g. anchoring means for anchoring the main frame in a fixed position relative to the tunnel lining section; and h. conveyor means for transferring material away from the working face, said main frame constructed so as to form a trough portion of said conveyor means.
Claim 2
Dependent Claim
245 words
A tunnelling apparatus for installation in one or more of a series of tunnel lining sections, said apparatus comprising: a. a main frame having a plurality of skids attached thereto which normally bear against said tunnel lining section; b. a jib supported by said main frame; c. means for moving the jib relative to said main frame; d. means for detaching material from a working face to effect advancement of the tunnel, said detaching means being located at the effect advancement of the tunnel, said detaching means being located at the free end of the jib; e. at least one first wheel assembly attached to said main frame capable of movement between a retracted and an extended position, such that when said first wheel assembly is in its extended position it raises said skids from said tunnel lining section and allows the frame to be displaced generally longitudinally; f. at least one second wheel assembly attached to said main frame capable of movement between a retracted and an extended position, such that when said second wheel assembly is in its extended position it raises said skids from said tunnel lining section and allows the frame to be displaced generally transversally; g. anchoring means for anchoring the main frame in a fixed position relative to the tunnel lining section; and h. conveyor means for transferring material away from the working face, said main frame constructed so as to form a trough portion of said conveyor means.
Claim 3
Dependent Claim
28 words
An apparatus according to claim 1, wherein said anchoring means comprises a hydraulic jack carrying a shoe engageable with the inner surface of one of the lining sections.
Claim 4
Dependent Claim
24 words
An apparatus according to claim 1, wherein each wheel assembly is provided with an adjustment mechanism for effecting said selective operation of the assembly.
Claim 5
Dependent Claim
17 words
an apparatus according to claim 3, wherein each adjustment mechanism is a hydraulic piston and cylinder unit.
Claim 6
Dependent Claim
41 words
An apparatus according to claim 1, wherein the wheel assemblies and skids are disposed at the sides of the frame relative to the direction of tunnel advancement, with the wheel assemblies disposed between adjacent skids at each siDe of the frame.
Claim 7
Dependent Claim
61 words
An apparatus according to claim 1, wherein said first wheel assemblies each comprise a wheel rotatably mounted on an arm which is pivotable relative to the frame about an axis extending generally parallel to the longitudinal axis of the frame and wherein the adjustment mechanism for each of said some wheel assemblies is operable to effect pivotal movement of the arm.
Claim 8
Dependent Claim
54 words
An apparatus according to claim 6, wherein the adjustment mechanism for each of said first wheel assemblies is a threaded member engaged in a threaded bore in a bracket attached to the frame, the threaded member bearing on an abutment face of the arm so as to exert leverage on the arm when rotated.
Claim 9
Dependent Claim
54 words
An apparatus according to claim 1, wherein said second wheel assemblies each comprise a wheel rotatably mounted on a shaft which is located for displacement within guideways and wherein the adjustment mechanism for each of said remainder of the wheel assemblies is operable to move the shaft in a vertical plane within the guideways.
Claim 10
Dependent Claim
54 words
An apparatus according to claim 8, wherein the adjustment mechanism for each of said second wheel assemblies is at least one threaded member engaged in a threaded bore in a bracket attached to the frame, the threaded member being secured to or bearing on the shaft so as to move the latter when rotated.
Claim 11
Dependent Claim
89 words
An apparatus according to claim 1, wherein the sides of the frame are constructed as guide beams, a carriage is slidably supported on upper surfaces of these guide means and carries the detaching means and a ram is provided to effect relative movement between the carriage and the frame, the skids being secured to the guide beams with said some wheel assemblies being provided generally at the underside of the guide beams and the remainder of the wheel assemblies being provided at the exterior sides of the guide beams.
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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |