Dampened railway freight car truck

Claim 2

A railroad car truck, which comprises: a. a bolster having energy dampeners and neutral positioning means positioned thereon; b. a pair of single beam side frames, each of said frames having key means therein and being pivotally attached to one end of said bolster; c. four cantilevered axles, each positioned on one end of each of said frames; d. four wheels, each rotatably mounted on one of said axles; e. brake means selectively operable to retard rotation of said wheels about said axles; and f. a pair of substantially cylindrical stub axles each having keyway means therein, each said axle extending one from each side of said bolster wherein said keyway means engages said key means thereby limiting rotational movement of said frames on said axles.

Claim 3

A four-wheel truck which comprises: a. a bolster having an axle extending outwardly from each end of said bolster; b. two single beam side frames having limiting means thereon for limiting rotation of said frames about said bolster axles; c. four wheels; d. cantilevered means for rotatably attaching one of said four wheels to each end of said two side frames; e. braking means attached to each of said wheels for cooperatively acting in conjunction with braking means attached to each end of said side frames so that said wheels may be prevented from rotation.

Claim 4

A four-wheel truck which comprises: a. a bolster having an axle extending outwardly from each end of said bolster; b. two single beam side frames having limiting means thereon for limiting rotation of said frames about said bolster axles; c. four wheels; d. cantilevered means for rotatably attaching one of said four wheels to each end of said two side frames; e. braking means attached to each of said wheels for cooperatively acting in conjunction with braking means attached to each end of said side frames so that said wheels may be prevented from rotation.

Claim 5

The four-wheel truck of claim 2 wherein said bolster is provided with: a. a center bearing having a center plate positioned thereon, said bearing and plate adapted to receive a railroad freight car; b. a plurality of spring means positioned between said bolster and said center bearing, said spring means permitting movement of said bolster relative to said center bearing; and c. a plurality of energy dampening means positioned between said bolster and said center bearing.

Claim 6

A bolster for use with railway car trucks having side frames, which comprises: a. an elongated body having a center bearing positioned at a point substantially equidistant from either end; b. a plurality of spring means centrally positioned between said bolster and said center bearing, said spring means permitting vertical movement of said bolster relative to said center bearing; c. a plurality of hydraulic action energy absorbing means generally centrally positioned between said bolster and said center bearing, said absorbing means dampening said vertical movement of said bolster relative to said center bearing; and d. a pair of generally cylindrical axles, each positioned on one end of said bolster, said axles having keyway means thereon and being adapted to receive the side frames, with key means on said side frames, located therebetween to limit rotation of said side frames on said axles.

Claim 7

A bolster for use with railway car trucks having side frames, which comprises: a. an elongated body having a center bearing positioned at a point substantially equidistant from either end; b. a plurality of spring means centrally positioned between said bolster and said center bearing, said spring means permitting vertical movement of said bolster relative to said center bearing; c. a plurality of hydraulic action energy absorbing means generally centrally positioned between said bolster and said center bearing, said absorbing means dampening said vertical movement of said bolster relative to said center bearing; and d. a pair of generally cylindrical axles, each positioned on one end of said bolster, said axles having keyway means thereon and being adapted to receive the side frames, with key means on said side frames, located therebetween to limit rotation of said side frames on said axles.

Claim 8

A railway truck for placement under a railway car, comprising: a. a laterally extending structured bolster; b. axle means projecting from each end of said bolster; c. energy absorbing means attached to said bolster in a substantially central location on one side of said bolster; d. energy dampening means attached to said bolster in a substantially central location on one side of said bolster; e. center plate support means movably located on said bolster and contacting said energy absorbing means and said energy dampening means; f. means attached to said center plate support means for movably locating said center plate support means in a railway car; g. side frame means located one on each of said axle means projecting from said bolster, said side frame means semi-rotatably attached to said axle means and adapted to move angularly around said axle means through a portion of one revolution; h. four or more non-rotatable cantilever axle stubs located at least one near each end of said side frame means, said axle stubs being permanently and non-rotatably attached to the inward facing side of said side frame means and adapted to receive wheels; i. four or more sets of wheel means containing bearings, each of said wheel means being rotatably attached to each of said axle stubs and adapted to rotate independently of one another; and j. brake means attached to said railway truck and adapted to top rotation of said wheel means on said axle stubs.

Claim 9

A railway truck for placement under a railway car, comprising: a. a laterally extending structured bolster; b. axle means projecting from each end of said bolster; c. energy absorbing means attached to said bolster in a substantially central location on one side of said bolster; d. energy dampening means attached to said bolster in a substantially central location on one side of said bolster; e. center plate support means movably located on said bolster and contacting said energy absorbing means and said energy dampening means; f. means attached to said center plate support means for movably locating said center plate support means in a railway car; g. side frame means located one on each of said axle means projecting from said bolster, said side frame means semi-rotatably attached to said axle means and adapted to move angularly around said axle means through a portion of one revolution; h. four or more non-rotatable cantilever axle stubs located at least one near each end of said side frame means, said axle stubs being permanently and non-rotatably attached to the inward facing side of said side frame means and adapted to receive wheels; i. four or more sets of wheel means containing bearings, each of said wheel means being rotatably attached to each of said axle stubs and adapted to rotate independently of one another; and j. brake means attached to said railway truck and adapted to top rotation of said wheel means on said axle stubs.

Claim 10

The railway truck of claim 5 wherein said four or more sets of wheel means comprises four wheels, said energy absorbing means comprises a plurality of coil springs, said energy dampening means comprises hydraulic dampeners, and said axle means and said side frame means contain key slot means capable of loose mating engagement and further adapted to prevent free rotation of said side frame means about said axle means.

Claim 11

The railway truck of claim 6 further comprising resilient means inserted between said axle means and said side frame means in said key slot means and capable of resiliently further limiting rotation of said side frame means about said axle means.

Claim 12

A railway truck for placement under a railway car, said truck being capable of traversing curves and vertical discontinuities in railway tracks without causing spinning of the wheels due to differences in velocities between wheels on the inside rail and wheels on the outside rail and without causing transmittance of vertical shocks from one wheel to all other wheels, comprising: a. a lateral bolster member adapted to be disposed substantially perpendicular to the longitudinal axis of the railway car and arranged to substantially support the railway car; b. energy absorbing and dampening means located on said bolster member between said bolster member and said railway car; c. two lateral frame members movably and transversely affixed one to each end of said bolster member, with means therebetween to effect limited rotation of said frame members on said bolster member, each said frame member adapted to move independently of said other frame member; d. a plurality of wheel means, each independently and rotaTably attached by cantilevered axle means to said frame means, each of said wheel means being capable of rotating each independently of the other; and e. brake means for stopping the railway car, said brake means attached to said railway truck.

Claim 13

A railway truck for placement under a railway car, said truck being capable of traversing curves and vertical discontinuities in railway tracks without causing spinning of the wheels due to differences in velocities between wheels on the inside rail and wheels on the outside rail and without causing transmittance of vertical shocks from one wheel to all other wheels, comprising: a. a lateral bolster member adapted to be disposed substantially perpendicular to the longitudinal axis of the railway car and arranged to substantially support the railway car; b. energy absorbing and dampening means located on said bolster member between said bolster member and said railway car; c. two lateral frame members movably and transversely affixed one to each end of said bolster member, with means therebetween to effect limited rotation of said frame members on said bolster member, each said frame member adapted to move independently of said other frame member; d. a plurality of wheel means, each independently and rotaTably attached by cantilevered axle means to said frame means, each of said wheel means being capable of rotating each independently of the other; and e. brake means for stopping the railway car, said brake means attached to said railway truck.

Claim 14

A truck for railway cars comprising: a. an elongated primary bolster member having an elevated portion at each end thereof; b. spring means located on top of said primary bolster member between said elevated portions; c. hydraulic dampening means on top of said primary bolster member between said elevated portions; d. generally cylindrical cantilevered bolster axle stubs projecting outwardly from each end of said bolster member; e. a secondary bolster member movably positioned on said primary bolster member, contacting said spring means and said dampening means, and located substantially between said elevated portions; f. two single member side frames each attached to each of said bolster axle stubs in a generally transverse orientation to said primary bolster member with limiting means between said side frames and said axle stubs, said limiting means arranged to limit rotation of said frames on said axle stubs; g. two pairs of cantilevered cylindrical wheel axle stubs, each pair permanently attached to each of said frame members, with one wheel axle stub being located near each end of each said frame member; h. wheel means rotatably attached to each of said wheel axle stubs; and i. brake means on said bolster arranged to selectively retard rotation of said wheel means.

Claim 15

A truck for railway cars comprising: a. an elongated primary bolster member having an elevated portion at each end thereof; b. spring means located on top of said primary bolster member between said elevated portions; c. hydraulic dampening means on top of said primary bolster member between said elevated portions; d. generally cylindrical cantilevered bolster axle stubs projecting outwardly from each end of said bolster member; e. a secondary bolster member movably positioned on said primary bolster member, contacting said spring means and said dampening means, and located substantially between said elevated portions; f. two single member side frames each attached to each of said bolster axle stubs in a generally transverse orientation to said primary bolster member with limiting means between said side frames and said axle stubs, said limiting means arranged to limit rotation of said frames on said axle stubs; g. two pairs of cantilevered cylindrical wheel axle stubs, each pair permanently attached to each of said frame members, with one wheel axle stub being located near each end of each said frame member; h. wheel means rotatably attached to each of said wheel axle stubs; and i. brake means on said bolster arranged to selectively retard rotation of said wheel means.

Claim 16

The truck of claim 9 further comprising: a. roller bearings between said wheel means and said wheel axle stubs; b. keyways in said bolster axle stubs; and c. resilient keys inserted in said keyways in said bolster axle stubs and arranged to resiliently limit rotation of said side frames about said bolster axle stubs.

Claim 17

The truck of claim 10 wherein said hydraulic dampening means numbers four or more located around the periphery of said spring means, and said spring means further comprises four or more coiled springs placed in generally vertical orientation at or near the center of said primary bolster member.

Claim 18

A railway truck comprising: a. a lower transverse bolster member; b. an upper bolster member arranged above said lower bolster member; c. energy absorbing means and dampening means between said upper and lower bolster members; d. substantially cylindrical axle means extending laterally from each end of said lower bolster member said axle means having rotation limiting means thereon; e. a center plate support located substantially in the center of said upper bolster; f. a center plate alignment rod extending upward from the center of said center plate support; g. two single beam side frames, one attached to each of said axle means in engagement with said rotation limiting means; h. resilient limiting means between said side frames and said axle means, arranged to allow partial rotation of said side frames about said axle means and further arranged to resiliently stop said rotation after a certain predetermined mount thereof; i. a plurality of cantilevered wheel axle means transversely attached to said side frames, one near each end thereof; and j. wheel means rotatably mounted on each said cantilevered wheel axle means.

Claim 19

A railway truck comprising: a. a lower transverse bolster member; b. an upper bolster member arranged above said lower bolster member; c. energy absorbing means and dampening means between said upper and lower bolster members; d. substantially cylindrical axle means extending laterally from each end of said lower bolster member said axle means having rotation limiting means thereon; e. a center plate support located substantially in the center of said upper bolster; f. a center plate alignment rod extending upward from the center of said center plate support; g. two single beam side frames, one attached to each of said axle means in engagement with said rotation limiting means; h. resilient limiting means between said side frames and said axle means, arranged to allow partial rotation of said side frames about said axle means and further arranged to resiliently stop said rotation after a certain predetermined mount thereof; i. a plurality of cantilevered wheel axle means transversely attached to said side frames, one near each end thereof; and j. wheel means rotatably mounted on each said cantilevered wheel axle means.

Claim 20

The truck of claim 12 wherein: a. said cantilevered axle means are mounted inboard on said side frames in perpendicular relationship thereto; and b. said wheel means further comprise roller bearings therein and retaining means adapted to prevent said wheel means from sliding on said wheel axle means.

Claim 21

The truck of claim 13 wherein: a. said energy absorbing means comprises a plurality of coiled springs; and b. said dampening means comprises hydraulic-action devices.

Claim 22

The truck of claim 14 wherein said rotation limiting means further comprises: a. keyway slOts located longitudinaly in the outer periphery of said axle means; b. stationary key projections extending radially inward in axle openings in said side frames and arranged to fit loosely within said keyway slots; and c. said resilient limiting means further comprising resilient movable keys adapted to be inserted between said key projections and said keyway slots and arranged to resiliently limit movement of said key projections in said keyway slots.