US3570409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dampened railway car truck
Assignee: Individual
•
Filing: 1967-12-05
•
Granted: 1971-03-16
•
Expires: 1987-12-05
Abstract
Abstract The invention relates to a railroad car truck in which the side frames are carried inboard of the wheels on supports that are stationary relative to the side frames. The side frames are provided with spring seats that are substantially aligned with the planes of the wheels on either side of the truck and support through spring groups a bolster of special design that supports the weight of the car body at two points on either side of the bolster, which points are aligned with the respective spring groups. The truck bolster is pivoted to the car body bolster by the usual kingpin, but the coupling arrangement involved is such that none of the body weight is supported at the customary center plate area of the bolster, which area is eliminated in the present truck. The truck bolster at its midportion includes a socket structure into which a projection of the body bolster fits for applying longitudinally and laterally acting forces to the bolster from which they are transferred to the side frames through suitable engaging surfaces. In one form of the invention, the side frames are mounted on tubular housings for the axles, which housings are journaled relative to the wheels through special roller bearing or friction bearing arrangements that are herein disclosed. In another form of the invention, the side frames are mounted directly on the axles, which are stationary relative thereto, and which have the truck wheels journaled on the respective ends through a special friction type bearing arrangement, with the result that the truck wheels rotate independently of each other.
Inventors
- 👤 Alfred H Oelkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:47
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/08; B61F15/00; B61F15/12; F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C2326/00; F16C2326/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
235 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheels; said side frames each defining a seat for spring means, with said seats being respectively located in a portion adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck, a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a car body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connectIng means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 2
Dependent Claim
235 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheels; said side frames each defining a seat for spring means, with said seats being respectively located in a portion adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck, a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a car body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connectIng means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 3
Dependent Claim
278 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheel; said side frames each defining a seat for spring means, with said seats being respectively located in a position adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck, with the remainder of said spring seats being inboard of the respective side frames; a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a truck body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connecting means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles; and said bolster and said side frames including means adjacent said connecting means and in circumambient relation thereabout for transmitting horizontally acting forces from said bolster to said side frames.
Claim 4
Dependent Claim
278 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheel; said side frames each defining a seat for spring means, with said seats being respectively located in a position adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck, with the remainder of said spring seats being inboard of the respective side frames; a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a truck body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connecting means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles; and said bolster and said side frames including means adjacent said connecting means and in circumambient relation thereabout for transmitting horizontally acting forces from said bolster to said side frames.
Claim 5
Dependent Claim
76 words
The truck set forth in claim 2 including: a tubular axle housing received over each axle; said side frames being supported on said housings of the respective axles adjacent the respective wheels; said journaling means comprising means for supporting said housings of the respective axles on the respective wheel hubs thereof independently of said axles; and whereby vertical loads carried by said side frames are transmitted to the respective truck wheels through the respective axle housings.
Claim 6
Dependent Claim
108 words
The truck set forth in claim 3 wherein said supporting means comprises: a roller bearing unit interposed between the respective housings and the wheel hubs adjacent same at each axle end; said roller bearing units each comprising a single row of bearing rollers secured in a circular cage disposed about the respective axle ends and riding between races carried by said housings and wheel hubs respectively, with the rollers at opposite ends of each axle being disposed in opposed thrust bearing relation; and means for guiding said cages of said units as they rotate about said axles on movement of the truck over the rails of a track.
Claim 7
Dependent Claim
64 words
The truck set forth in claim 3 wherein said supporting means comprises: a cylindrical bearing member carried by each wheel hub adjacent the respective ends of said axle housings; a bearing member secured to the respective axle housing ends and riding on the respective wheel cylindrical bearing members to provide a bearing unit at each wheel; and means for lubricating the respective bearing units.
Claim 8
Dependent Claim
256 words
In a railway car truck; a pair of wheeled axles with each of the wheels thereof including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a truck frame disposed inboard of the axle wheels; said truck frame including opposed side frames interconnected by a cross piece; a spring platform on each side frame; a truck bolster member extending trAnsversely of said truck frame and formed with end portions at either end thereof defining spring platforms; means for supporting the truck bolster member of said truck frame including a plurality of springs interposed between said side frame spring platforms and the truck bolster member platforms, respectively; said truck bolster member and side frame platforms substantially spanning the distance between said axles; said bolster member also having a crossmember connecting said end portions of the bolster member; said bolster member end portions each being formed to receive a side bearing in alignment with said platforms thereof, respectively, adapted to transfer the weight of the car body to said bolster member; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; nonweight bearing means for swivelably connecting said bolster member to the car body; said bolster member supporting means including snubber means adapted to act only vertically; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 9
Dependent Claim
256 words
In a railway car truck; a pair of wheeled axles with each of the wheels thereof including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a truck frame disposed inboard of the axle wheels; said truck frame including opposed side frames interconnected by a cross piece; a spring platform on each side frame; a truck bolster member extending trAnsversely of said truck frame and formed with end portions at either end thereof defining spring platforms; means for supporting the truck bolster member of said truck frame including a plurality of springs interposed between said side frame spring platforms and the truck bolster member platforms, respectively; said truck bolster member and side frame platforms substantially spanning the distance between said axles; said bolster member also having a crossmember connecting said end portions of the bolster member; said bolster member end portions each being formed to receive a side bearing in alignment with said platforms thereof, respectively, adapted to transfer the weight of the car body to said bolster member; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; nonweight bearing means for swivelably connecting said bolster member to the car body; said bolster member supporting means including snubber means adapted to act only vertically; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 10
Dependent Claim
170 words
An inboard railroad car truck comprising: a plurality of axles having a wheel at either end thereof adapted to ride the rails of a track; a side frame on either side of the truck and inboard of the axle wheels; each of said side frames defining a spring seat adjacent the plane of the wheels on that side of the truck adjacent the respective side frames; a bolster extending between said side frames and over the respective spring seats; spring means interposed between the respective spring seats and said bolster; said bolster including means for pivotally connecting same to a railroad car body and means for supporting the car body thereon at points disposed on either side of said pivotal connecting means and in vertical alignment with the respective spring seats; means for supporting said side frames from the wheels on either side of the truck including a support for the respective side frames that is stationary relative thereto; and means for journaling said wheels for rotation relative said supports.
Claim 11
Dependent Claim
170 words
An inboard railroad car truck comprising: a plurality of axles having a wheel at either end thereof adapted to ride the rails of a track; a side frame on either side of the truck and inboard of the axle wheels; each of said side frames defining a spring seat adjacent the plane of the wheels on that side of the truck adjacent the respective side frames; a bolster extending between said side frames and over the respective spring seats; spring means interposed between the respective spring seats and said bolster; said bolster including means for pivotally connecting same to a railroad car body and means for supporting the car body thereon at points disposed on either side of said pivotal connecting means and in vertical alignment with the respective spring seats; means for supporting said side frames from the wheels on either side of the truck including a support for the respective side frames that is stationary relative thereto; and means for journaling said wheels for rotation relative said supports.
Claim 12
Dependent Claim
151 words
In an arrangement for supporting railroad car truck side frames on the truck wheels, the improvement wherein: said side frames on either side of the truck are mounted on tubular housings overlying the respective axles that are stationary relative to said side frames; said wheels each including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; means for journaling said tubular housings adjacent their respective ends on the respective truck wheel hubs; said journaling means comprising a bearing unit including single row of tapered roller bearings interposed between a cone and outer race carried by the housing end and wheel hubs respectively, with said rollers being mounted in a cage; and with the rollers of each unit on a housing disposed in oppositely facing directions to center the housing of each axle with respect to the wheels of such axle.
Claim 13
Dependent Claim
151 words
In an arrangement for supporting railroad car truck side frames on the truck wheels, the improvement wherein: said side frames on either side of the truck are mounted on tubular housings overlying the respective axles that are stationary relative to said side frames; said wheels each including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; means for journaling said tubular housings adjacent their respective ends on the respective truck wheel hubs; said journaling means comprising a bearing unit including single row of tapered roller bearings interposed between a cone and outer race carried by the housing end and wheel hubs respectively, with said rollers being mounted in a cage; and with the rollers of each unit on a housing disposed in oppositely facing directions to center the housing of each axle with respect to the wheels of such axle.
Claim 14
Dependent Claim
144 words
In an arrangement for supporting railroad car truck side frames on the truck wheels, the improvement wherein; said side frames on either side of the truck are mounted on tubular housings overlying the respective truck axles that are stationary relative to said side frames; said wheels each including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; means for journaling said tubular housings adjacent their respective ends on the respective truck wheel hubs; said journaling means comprising a bearing unit at the point of support of the respective tubular housing ends on the respective wheel hubs including an annular antifriction member carried by the wheel hub and a shoe mEmber carried by housing end and riding on the inner surface of said antifriction member; and means for lubricating said shoe and antifriction member.
Claim 15
Dependent Claim
144 words
In an arrangement for supporting railroad car truck side frames on the truck wheels, the improvement wherein; said side frames on either side of the truck are mounted on tubular housings overlying the respective truck axles that are stationary relative to said side frames; said wheels each including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; means for journaling said tubular housings adjacent their respective ends on the respective truck wheel hubs; said journaling means comprising a bearing unit at the point of support of the respective tubular housing ends on the respective wheel hubs including an annular antifriction member carried by the wheel hub and a shoe mEmber carried by housing end and riding on the inner surface of said antifriction member; and means for lubricating said shoe and antifriction member.
Claim 16
Dependent Claim
263 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheels; said side frames each defining a seat for spring means, with said seats being respectively located in a position adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck; a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a car body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; and spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connecting means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; said bolster and side frames being proportioned such that said seats extend a substantial portion of the distance between said axles on either side of the truck; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 17
Dependent Claim
263 words
In a railway car truck: a plurality of axles having a wheel at either end thereof and each of said wheels including a hub portion and a railroad track rail engaging rim portion disposed substantially within the plane of the respective wheels; a side frame on either side of the truck and inboard of the axle wheels; said side frames each defining a seat for spring means, with said seats being respectively located in a position adjacent said wheels on either side of the truck and including a portion disposed in alignment with the axle wheels on the respective sides of the truck; a bolster positioned over said side frame seats and including means at the midportion thereof for pivotally connecting the truck to a car body; means for journaling the respective side frames in the wheel hubs of the respective wheels on the side of the truck adjacent same; and spring means interposed between the respective side frame seats and said bolster; said bolster being formed on the upper side thereof for supporting the car body weight at points spaced on either side of said connecting means and in alignment with said seats on either side of the truck to the exclusion of said midportion of said bolster; said bolster and side frames being proportioned such that said seats extend a substantial portion of the distance between said axles on either side of the truck; and said journaling means including means for transmitting to the respective wheel hubs the loads carried by the respective side frames to the exclusion of said axles.
Claim 18
Dependent Claim
17 words
The truck set forth in claim 10 wherein said seats substantially span the distance between said axles.
References Cited (Backward Citations)
US2184102A
Cited
US2208425A
Cited
US2316046A
Cited
US2756692A
Cited
US2988015A
Cited
US3022748A
Cited
US3028820A
Cited
US3313245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |