Patent US3658438A successfully refreshed from Google Patents.
US3658438A
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Segmented seating plates and anchoring means for a turbine power plant
Assignee: Westinghouse Electric Corp
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Filing: 1970-12-03
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Granted: 1972-04-25
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Expires: 1990-12-03
Abstract
Abstract The invention relates to a segmented seating plate construction for providing a positive anchor for tandem-connected low pressure turbines of a turbine-generator power plant. Rectangularly arranged seating plate segments, which are not interconnected, are provided for each low pressure turbine. In both of the opposite central seating plate segments for the central low pressure turbine, located in a tandem arrangement between two other low pressure turbines having segmented seating plates, there is provided a keyway for restraining axial movements, such as those due to thermal expansion of the turbines. Each of the central seating plate segments is securely held in position by a vertically extending anchor embedded in the concrete foundation and connected to such segment by an eccentric bushing structure.
Inventors
- 👤 William H Coleman
- 👤 Robert C Quinn
- 👤 Howard L Novak
- 👤 Jack J Kalbach
- 👤 Seward L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:09
CPC Classifications
F; F16; F16M; F16M5/00; F01; F01D; F01D25/00; F01D25/28; Y; Y10; Y10S; Y10S248/00; Y10S248/901
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
A large machine subjected to substantial differential thermal expansions between said machine and its foundation during operation, said machine having a longitudinal centerline, a plane transverse to said longitudinal centerline and containing a transverse centerline of said machine, and a base portion supported on a foundation, seating plates supported by said foundation and frictionally engaging said base portion of said machine, said seating plates comprising a plurality of separate unconnected segments, said segments including two opposed central segments having their transverse centerlines extending along said transverse plane of said machine, anchoring means for anchoring each of said central segments to said foundation, and means for securing said machine to said central segments to prevent movement of said machine in the longitudinal direction at said central segments.
Claim 2
Dependent Claim
126 words
A large machine subjected to substantial differential thermal expansions between said machine and its foundation during operation, said machine having a longitudinal centerline, a plane transverse to said longitudinal centerline and containing a transverse centerline of said machine, and a base portion supported on a foundation, seating plates supported by said foundation and frictionally engaging said base portion of said machine, said seating plates comprising a plurality of separate unconnected segments, said segments including two opposed central segments having their transverse centerlines extending along said transverse plane of said machine, anchoring means for anchoring each of said central segments to said foundation, and means for securing said machine to said central segments to prevent movement of said machine in the longitudinal direction at said central segments.
Claim 3
Dependent Claim
19 words
The structure recited in claim 1 and further providing means for expansion of the machine in a horizontal plane.
Claim 4
Dependent Claim
56 words
The structure recited in claim 2 wherein the means for providing horizontal expansion and the means for securing the machine comprise two keyways equally spaced on opposite sides of the longitudinal centerline, each keyway cooperatively defined by a central seating plate segment and the machine base portion, and a key disposed in each of said keyways.
Claim 5
Dependent Claim
28 words
The structure recited in claim 3 wherein the keyways and keys are disposed in a horizontal plane, and are mutually normal to the longitudinal centerline of the machine.
Claim 6
Dependent Claim
85 words
The structure recited in claim 1 wherein the anchoring means comprise at least one post embedded in the foundation, each central segment defining at least one opening therein corresponding to said post, said post extending upwardly into said corresponding opening in the central segment, said post having a smaller cross-sectional dimension than said opening and thereby defining a gap, and means for bridging said gap in said opening between said post and the central segment to provide a rigid connection between the post and segment.
Claim 7
Dependent Claim
26 words
The structure recited in claim 5 wherein the bridging means comprises a bushing member which is fitted to the post, bridging the gap in the opening.
Claim 8
Dependent Claim
129 words
The structure recited in claim 1 wherein the anchoring means comprise at least one post embedded in the foundation, each central segment defining at least one opening therein corresponding to said post, said Post extending upwardly into said corresponding opening in the central segment, said post having a smaller cross-sectional dimension than said opening and thereby defining a gap, a means for bridging said gap in said opening between said post and the central segment to provide a rigid connection between said post and segment, said bridging means comprising a bushing member which is fitted onto the post bridging the gap in the opening, said post being eccentrically disposed in said opening and said bushing member having a corresponding aperture which is eccentric with respect to its outer dimension.
Claim 9
Dependent Claim
143 words
The structure recited in claim 1 wherein the anchoring means comprise at least one post embedded in the foundation, each central segment defining at least one opening therein corresponding to said post, said post extending upwardly into said corresponding opening in the central segment, said post having a smaller cross-sectional dimension than said opening and jointly defining a gap therewith, means for bridging said gap in said opening between said post and said central segment, to provide a rigid connection between said post and segment, said bridging means comprising a bushing member which is fitted to the post, bridging said gap in said opening, said post being eccentrically disposed in said opening and said bushing member having a corresponding aperture which is eccentric with respect to its outer dimension, and said post, said opening and said bushing member being circular in cross section.
Claim 10
Dependent Claim
35 words
The structure recited in claim 1 wherein the base portion of the machine is substantially rectangular in cross section and the seating plate segments are arranged in a substantially rectangular configuration to support the machine.
Claim 11
Dependent Claim
16 words
The structure recited in claim 1 wherein the seating plate segments are rectangular in cross section.
Claim 12
Dependent Claim
38 words
The structure recited in claim 6 wherein the base portion of the machine has access apertures of greater dimension than the dimension of the bushing member, one of said apertures corresponding to each opening in the seating plate.
Claim 13
Dependent Claim
38 words
The structure recited in claim 6 wherein each bushing member and the foundation are in spaced relation, and wherein a retaining washer is secured to the bottom of each central segment to assist in supporting the bushing member.
Claim 14
Dependent Claim
34 words
The structure recited in claim 1 wherein a layer of grout is placed between the foundation and the seating plates and wherein each central segment is provided with anchor discs embedded in said layer.
Claim 15
Dependent Claim
17 words
The structure recited in claim 1 wherein the machine is formed of a plurality of housing units.
Claim 16
Dependent Claim
24 words
The structure recited in claim 14 wherein the units are turbines heated by hot motive fluid which produces differential thermal expansion in the units.
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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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |