US3720173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable hot metal car
Assignee: KONINKL NL HOOGOVENS EN STALLF
•
Filing: 1970-10-26
•
Granted: 1973-03-13
•
Expires: 1990-10-26
Abstract
Abstract A car for conveying molten metal comprising two independent bogies spaced longitudinally one behind the other in the direction of movement, said bogies carrying horizontally oriented bearings and being connected together by a longitudinal vessel having journals rotatable in said bearings, said vessel, with said bearings, forming a unit detachably connected to said bogies, and especially from frame plates having spherically movable engagement with the bogies one of which carries motor means for tilting the vessel, the detachable connections being provided by forming the frame plates of upper and lower sections mutually aligned by self-centering male and female interfitting portions, with readily detachable means securing said upper and lower sections together.
Inventors
- 👤 Wierst W Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:25
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/06; B; B22; B22D; B22D41/00; B22D41/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
187 words
An improved car for conveying molten metal and the like, said car comprising a. two independent bogies spaced longitudinally one behind the other in the direction of movement of the car, b. independent frame structures carried by said bogies, respectively, c. said frame structures having frame plate means and part spherical bearing means coupling said frame plate means thereto, respectively, d. bearings mounted on said frame plate means, and e. a longitudinally extending vessel having longitudinally extending trunions rotatably mounted in said bearings and forming a unitary structure providing for tilting of said vessel about its longitudinal axis, and said car being improved in that f. said frame plate means each comprises a lower section and an upper section, g. said bearings being carried by said upper sections, h. said lower sections being coupled to said bogies by said part spherical bearing means, and i. releasable means separably securing said upper and lower sections rigidly and non-tiltably together, whereby on releasing said releasable means said vessel, bearings, and upper sections as a unitary assembly, may be lifted from said bogies and the lower sections respectively coupled thereto.
Claim 2
Dependent Claim
187 words
An improved car for conveying molten metal and the like, said car comprising a. two independent bogies spaced longitudinally one behind the other in the direction of movement of the car, b. independent frame structures carried by said bogies, respectively, c. said frame structures having frame plate means and part spherical bearing means coupling said frame plate means thereto, respectively, d. bearings mounted on said frame plate means, and e. a longitudinally extending vessel having longitudinally extending trunions rotatably mounted in said bearings and forming a unitary structure providing for tilting of said vessel about its longitudinal axis, and said car being improved in that f. said frame plate means each comprises a lower section and an upper section, g. said bearings being carried by said upper sections, h. said lower sections being coupled to said bogies by said part spherical bearing means, and i. releasable means separably securing said upper and lower sections rigidly and non-tiltably together, whereby on releasing said releasable means said vessel, bearings, and upper sections as a unitary assembly, may be lifted from said bogies and the lower sections respectively coupled thereto.
Claim 3
Dependent Claim
187 words
An improved car for conveying molten metal and the like, said car comprising a. two independent bogies spaced longitudinally one behind the other in the direction of movement of the car, b. independent frame structures carried by said bogies, respectively, c. said frame structures having frame plate means and part spherical bearing means coupling said frame plate means thereto, respectively, d. bearings mounted on said frame plate means, and e. a longitudinally extending vessel having longitudinally extending trunions rotatably mounted in said bearings and forming a unitary structure providing for tilting of said vessel about its longitudinal axis, and said car being improved in that f. said frame plate means each comprises a lower section and an upper section, g. said bearings being carried by said upper sections, h. said lower sections being coupled to said bogies by said part spherical bearing means, and i. releasable means separably securing said upper and lower sections rigidly and non-tiltably together, whereby on releasing said releasable means said vessel, bearings, and upper sections as a unitary assembly, may be lifted from said bogies and the lower sections respectively coupled thereto.
Claim 4
Dependent Claim
187 words
An improved car for conveying molten metal and the like, said car comprising a. two independent bogies spaced longitudinally one behind the other in the direction of movement of the car, b. independent frame structures carried by said bogies, respectively, c. said frame structures having frame plate means and part spherical bearing means coupling said frame plate means thereto, respectively, d. bearings mounted on said frame plate means, and e. a longitudinally extending vessel having longitudinally extending trunions rotatably mounted in said bearings and forming a unitary structure providing for tilting of said vessel about its longitudinal axis, and said car being improved in that f. said frame plate means each comprises a lower section and an upper section, g. said bearings being carried by said upper sections, h. said lower sections being coupled to said bogies by said part spherical bearing means, and i. releasable means separably securing said upper and lower sections rigidly and non-tiltably together, whereby on releasing said releasable means said vessel, bearings, and upper sections as a unitary assembly, may be lifted from said bogies and the lower sections respectively coupled thereto.
Claim 5
Dependent Claim
9 words
driving gear means carried by said unitary assembly, and
Claim 6
Dependent Claim
9 words
driving gear means carried by said unitary assembly, and
Claim 7
Dependent Claim
39 words
driving means carried by one of said lower sections, separate from said unitary assembly and having driving pinion means engaging said driving gear means when said assembly is mounted on said bogies by connecting said upper and lower sections.
Claim 8
Dependent Claim
39 words
driving means carried by one of said lower sections, separate from said unitary assembly and having driving pinion means engaging said driving gear means when said assembly is mounted on said bogies by connecting said upper and lower sections.
Claim 9
Dependent Claim
23 words
An improved car as claimed in claim 1 further comprising j. means for tilting said vessel in said bearings, said tilting means comprising
Claim 10
Dependent Claim
40 words
An improved car as claimed in claim 1 wherein said upper and lower sections include mutually interfitting surfaces with tapered aligning edges for accurately positioning said upper sections for said rigid connection to said lower sections by said releasable means.
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |