US4042117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear plate
Assignee: Buckeye International Inc
•
Filing: 1975-07-07
•
Granted: 1977-08-16
•
Expires: 1995-07-07
Abstract
Abstract A wear plate is disclosed herein for use in a railway car center sill to prevent or minimize wearing of the upper bearing surface of each of the horizontal key slots, due to the rubbing action of a draft key. The wear plate includes an elongated wear face which is positioned between the upper bearing surface and key and covers the upper bearing surface. At least one upwardly-extending flange is provided for securing the wear plate to the center sill and for maintaining the wear face in position to protect the upper bearing surface.
Inventors
- 👤 Carl D. McClurg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:06
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/20; B61G9/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
211 words
A center sill assembly for securing a coupler to said center sill in a railway car, comprising in combination: a center sill having a pair of side walls, each of said walls having a key slot extending therethrough and an outer peripheral rib surrounding each key slot on the outer side of said wall and an inner peripheral rib surrounding each key slot on the inner side thereof and an upper bearing surface and lower bearing surface for each key slot; an elongated draft key extending through each key slot and normally biased by the weight of said coupler toward said upper bearing surface of each key slot; a wear plate for each key slot having elongated and substantially planar web means terminating intermediate the ends of the respective key slot for facile positioning within the respective key slot adjacent said upper bearing surface, said web means having a hardenable wear surface for engagement with the top of the draft key so as to protect the upper bearing surface from the rubbing action of the draft key during motion of the railway car, and flange means for securing each wear plate to said sill at one peripheral rib and for maintaining said web means in position adjacent said upper bearing surface.
Claim 2
Dependent Claim
211 words
A center sill assembly for securing a coupler to said center sill in a railway car, comprising in combination: a center sill having a pair of side walls, each of said walls having a key slot extending therethrough and an outer peripheral rib surrounding each key slot on the outer side of said wall and an inner peripheral rib surrounding each key slot on the inner side thereof and an upper bearing surface and lower bearing surface for each key slot; an elongated draft key extending through each key slot and normally biased by the weight of said coupler toward said upper bearing surface of each key slot; a wear plate for each key slot having elongated and substantially planar web means terminating intermediate the ends of the respective key slot for facile positioning within the respective key slot adjacent said upper bearing surface, said web means having a hardenable wear surface for engagement with the top of the draft key so as to protect the upper bearing surface from the rubbing action of the draft key during motion of the railway car, and flange means for securing each wear plate to said sill at one peripheral rib and for maintaining said web means in position adjacent said upper bearing surface.
Claim 3
Dependent Claim
56 words
An assembly as in claim 1, wherein each peripheral rib is integral with the respective sill side wall and the wear plate is L-shaped and said flange means includes an elongated outer leg extending upwardly along an outer longitudinal edge of said elongated web means and fixedly positioned against the outer peripheral rib of the sill.
Claim 4
Dependent Claim
35 words
An assembly as in claim 2, wherein the outer peripheral rib defines a top edge positioned above the outer leg so as to provide an area for welding the leg to the outer peripheral rib.
Claim 5
Dependent Claim
70 words
An assembly as in claim 1, wherein each peripheral rib is integral with a respective side wall and said flange means includes an elongated outer leg extending upwardly along an outer longitudinal edge of said elongated web means and fixedly positioned against the outer peripheral rib, and tab means extending upwardly along an inner longitudinal edge of said web means opposite said leg and positioned against the inner peripheral rib.
Claim 6
Dependent Claim
34 words
An assembly as in claim 4, wherein the outer peripheral rib defines a top edge positioned above the leg so as to provide an area for welding the leg to the outer peripheral rib.
Claim 7
Dependent Claim
103 words
An assembly as in claim 1, wherein the wear plate is a channel-shaped member having a flat web with a hardened face for engaging said draft key to define said planar web means and includes a pair of elongated side flanges extending upwardly from the elongated edges of said web means to define said flange means and positioned to abut therebetween the peripheral ribs, and a pair of flexible tab means, one on each of said side flanges at the upper edge thereof for releasably grasping the top edges of the peripheral ribs and to facilitate attachment and removal of the wear plate.
References Cited (Backward Citations)
US1678141A
Cited
US1686733A
Cited
US1954537A
Cited
US2149840A
Cited
US2295444A
Cited
DE838970C
Cited
US2784814A
Cited
US3188772A
Cited
US3246770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |