CA1148792A - Railway equipment - Google Patents
Railway equipmentInfo
- Publication number
- CA1148792A CA1148792A CA000365584A CA365584A CA1148792A CA 1148792 A CA1148792 A CA 1148792A CA 000365584 A CA000365584 A CA 000365584A CA 365584 A CA365584 A CA 365584A CA 1148792 A CA1148792 A CA 1148792A
- Authority
- CA
- Canada
- Prior art keywords
- trapping
- railway equipment
- wheels
- beams
- rails
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
ABSTRACT
"RAILWAY EQUIPMENT"
Railway equipment comprises a pair of spaced apart, flat-bottomed railway rails 1, the heads 2 of which rails are engaged by leading and trailing pairs of flanged wheels 5 of a rail vehicle 4, the rail engaging wheels 5 being rotatable about axes 10 extending transversely of the direction of movement of the rail vehicle 4 along the rails 1, and the vehicle 4 being provided intermediate the leading and trailing pairs of wheels 5 with a pair of trapping wheels 11, rotatable about upwardly extending axes 12, one trapping wheel 11 being located at each side of the vehicle 4 and the circumferential periphery of each trapping wheel 11 having a circumferential recess 13 and mating with a trapping beam 14 having an at least partly complementary profile 15 and positioned adjacent each rail 1 at locations of presumed rail vehicle instability, the beams 14 being carried on support arms 16 extending upwardly from a base member 3 which passes beneath at least one rail 1.
"RAILWAY EQUIPMENT"
Railway equipment comprises a pair of spaced apart, flat-bottomed railway rails 1, the heads 2 of which rails are engaged by leading and trailing pairs of flanged wheels 5 of a rail vehicle 4, the rail engaging wheels 5 being rotatable about axes 10 extending transversely of the direction of movement of the rail vehicle 4 along the rails 1, and the vehicle 4 being provided intermediate the leading and trailing pairs of wheels 5 with a pair of trapping wheels 11, rotatable about upwardly extending axes 12, one trapping wheel 11 being located at each side of the vehicle 4 and the circumferential periphery of each trapping wheel 11 having a circumferential recess 13 and mating with a trapping beam 14 having an at least partly complementary profile 15 and positioned adjacent each rail 1 at locations of presumed rail vehicle instability, the beams 14 being carried on support arms 16 extending upwardly from a base member 3 which passes beneath at least one rail 1.
Description
~L~487~
Thi~ lnvontion relate~ *o railway equipD~ent~ partlcularly for underground uso.
Such equipment n~y bo ~or carrying conventional, loco~otive-haulvd rolling 9 tock, or alternatively may be Or the type ~here rail vehlcleo ~re clamped to a driv~n~ snd henoe ten~loned, haulage rop~ locat~d between tho rail~ and e~ttending ln the dir-~ction ther~o~, wlth a return run Or th- rope u8u~ located outside the raila. At varlou- locationo underground, there i~ a tendoncy Sor th- roll~g ~took or rail vehlolo3 to b-cooo un~table and consequently de-rallod. Such locationJ aro for lnstance ~her- t~e vehicl-~l hav~ to n-gotlate ourYe~.
S With rope ~haule~ h~cl~ ~ t~ o occur~ where there i~ a ~all or dopr~eelon ln the ~in~ floor becau~0 th- ten-lonln6 in the ropo triee to llf't tho rop- a,ml h-nce th- v-hlclo.
On~ propo~ or r~llw y equlp~ant th~t o~eroomo-~ tho proble~ of ve~llcl~ d~-r~ll~ent s'c loo~tion~ Or pro~Lbl- lnatablllty i- de~crlbed in our U.K. Patent 1,580,547 published December 3, 1980.
Aocordin4g ~o th~ pre~nt inYontlon r~ilway equlpmont ooslpri-o- ~ p~lr o~ i~p~ced ~p-rt, f-lat-bottome~ rall~ay rall-, the ho~de of which ra~l~
'~' ~879Z
are engaged by leading and trailing pairs of flanged wheels o~ a rail vehicle, the rail engaging wheels being rotatable about axes extending transversely of the direction of movement of the rail vehicle along the rails, and the vehicle being provided inter-mediate the leading and trailing pairs of wheels with a pair of trapping wheels, rotatable about upwardly extending axes, one trapping wheel bei~g located at each ~ide of the vehicle and the circumferential periphery of each trapping wheel having a circumferential recess or projection and mating with a trapping beam having an at least partly complementary profile and positioned ad~acent each rail at locations of presumed rail vehicle instability, the beams being carried on support arms extending upwardly from a base membar which passes beneath at least one rail.
Preferably, the trapping wheels present femal0 profiles to inter-engage with male profile trapping beams.
In detail, the circumferential recess may have curved wall portions to define a semi-circular or generally semi-circular groove; two planar walls to define a "V"~shaped groove, three .
~14~3~92 planar walls to define a ~uare "C"-shaped groove or comblnations of arcuate and planar walls.
~or a trapping wheel having an arcuate groove, the trapping beam may have a circular periphery adjacent the trapping wheels or may be of circular section. For a trapping wheel having a "V"-~haped groove, the trapping beam may be constituted by a length of angle iron, suitably angularly mounted. Alternativelys square section tubing may be angularly mounted.
~or a trapping wheel having a square "C"-shaped groove e.g. proYided by a wheel having a pair of spaced apart, parallel flanges, the trapping beam may be constituted by rectangular section tubing or by the rail head of a length of conventional railway rail, the rail web bei~g mounted in a generally horizontal plane.
In a preferred embodiment, however, the rece~s of each trapping wheel is oversized with reqpect to the trapping profile presented by the trapping beam, whereby the trapping wheels may, within limits, be displaceable in a vertical plane with respect to the trapping beam. Such a construction i9 particularly advantageous where the rall v~hicle i- oprun~.
In det~il, ehe trappin~ beam~ m~y be of clrcular ~oction and an over~ized ~roove may compri~e upper and lower wall~ that are inclined wi th ro~pect to the axi~ Or rotation of each trapping wheel, the upper and lower walls leadlng to ~ co on bottom ~all parallel to the asi~ o~ rot tlon o~ tha tr~pplng wheel, and the upper and louer vall~ belng ~paced apart by a dist~nce oxceeding tho diometer Or the trapplng boa~ e.g. by up to t~ice lt0 dia~eter.
E~o'n bano o~l~bor may carry ono or a pa$r of trappln~ b~a -t ~nd ~y al~o carry the railN, while the trappl~ bo~- ~y bo loc~tod in~lide or outJ~ide th- r ll- .
T~e r~il vohg ole ~y i~ fact bo elther a ral.l oar or a bo~l-. In th- lattor ca~o, the bo~ie may be Or ths f'orm de~crlbod ln our above-noted U . K . Pa tent l, 580, 547 .
The inventlo~ ~ill now be f`urther de~cribed, by way Or ess~pl--, ~lth referen¢e to the acco~pallylne drawingl~, in ~Ihl oh t -~iæure ~ ectional view~ at B curve, 2S through one half Or ~ flr0t el-bodlment of railway ~8792 equipment in accordance with the invention, the other half corresponding;
Figure 2 i 9 a similar ~ectional view to ~igure 1 but illu~trates a second embodiment;
and ~igure 3 is also a similar sectional view to Figure 1 but illustrate~ a third embodiment.
The railway equipment can be seen to comprise a pair of spaced apart, conventional flat-bottomed railway rails 1 (one only shown), each rail 1 having a head 2 and being mounted on a sleeper 3. Seated on the rails 1 is a vehicle 4 comprising four flanged wheels 5, ~one only shown) these being leading and trailing pair~ of wheels. Each wheel 5 comprising a flange 6 and a frusto-conical, railhead engaging periphery 7, the wheels 5 being suspended on arms 8 from a frame 9 of the vehicle 4 for rotation about an axis 10 extending laterally with respect to the direction of travel of the vehicle 4 along the rails 1.
Between the leading and trailing wheels 5 at each side of the vehicle is a trapping wheel 11 rotatable about an upwardly extending axis 12, each trapping wheel having a circumferential recess ~87~3 13 to mate with a trapping beam 14 having a complementary profile 15 adjacent the rece~s 13, the beam 14 being carried on support arms 16 extending upwardly from a base member in the form of a sleeper 3 which passes beneath at least one rail 1. The vehicle 4 illustrated is of a rope hauled kind, the rope tnot shown) being guided by conventional pullies 17 located between the rails 1.
In the embodiment of Figure 1, the recess 13 comprises a pair of upper and lower curved portions 18 separated by a common, planar portion 19 to define generally a "C"-shaped recess, while the profile 15 is provided by the trapping beam 14 cQmprising a curved length of circ~l:~r section tubing 20, the "C"-shaped recess being oversized with respect to the diameter of the trapping beam 14 to provide play.
In the embodiment of ~igure 2 the recess 13 comprises three planar portions, these being upper and lower portions 21 inclined with respect to the axis 12, and separated by a common portion 22 parallel to the axis 12 of the trapping wheel, f to define a half hexagonal groove. In this embodiment ~1~879Z
-- 7 ~
the profile 15 of the trapping beam 14 is "V"-shaped and is provided by angularly mount-ing a curved length of square section tubing 23, and the recess 13 is oversized with respect to the tubing 23.
In the embodiment of Figure 3 the recess 13 again comprises three planar portions these being upper and lower portions 24 extending laterally with respect to the axis 12 and again separated by a common portion 25 parallel to the axis 12, to define a square, "C"-shaped recess. In this embodiment the profile 15 is prismatic and is provided by the square mounting of a curved length of square section tubing 26, and the recess 13 is oversized with respect to the tubing 26.
Thi~ lnvontion relate~ *o railway equipD~ent~ partlcularly for underground uso.
Such equipment n~y bo ~or carrying conventional, loco~otive-haulvd rolling 9 tock, or alternatively may be Or the type ~here rail vehlcleo ~re clamped to a driv~n~ snd henoe ten~loned, haulage rop~ locat~d between tho rail~ and e~ttending ln the dir-~ction ther~o~, wlth a return run Or th- rope u8u~ located outside the raila. At varlou- locationo underground, there i~ a tendoncy Sor th- roll~g ~took or rail vehlolo3 to b-cooo un~table and consequently de-rallod. Such locationJ aro for lnstance ~her- t~e vehicl-~l hav~ to n-gotlate ourYe~.
S With rope ~haule~ h~cl~ ~ t~ o occur~ where there i~ a ~all or dopr~eelon ln the ~in~ floor becau~0 th- ten-lonln6 in the ropo triee to llf't tho rop- a,ml h-nce th- v-hlclo.
On~ propo~ or r~llw y equlp~ant th~t o~eroomo-~ tho proble~ of ve~llcl~ d~-r~ll~ent s'c loo~tion~ Or pro~Lbl- lnatablllty i- de~crlbed in our U.K. Patent 1,580,547 published December 3, 1980.
Aocordin4g ~o th~ pre~nt inYontlon r~ilway equlpmont ooslpri-o- ~ p~lr o~ i~p~ced ~p-rt, f-lat-bottome~ rall~ay rall-, the ho~de of which ra~l~
'~' ~879Z
are engaged by leading and trailing pairs of flanged wheels o~ a rail vehicle, the rail engaging wheels being rotatable about axes extending transversely of the direction of movement of the rail vehicle along the rails, and the vehicle being provided inter-mediate the leading and trailing pairs of wheels with a pair of trapping wheels, rotatable about upwardly extending axes, one trapping wheel bei~g located at each ~ide of the vehicle and the circumferential periphery of each trapping wheel having a circumferential recess or projection and mating with a trapping beam having an at least partly complementary profile and positioned ad~acent each rail at locations of presumed rail vehicle instability, the beams being carried on support arms extending upwardly from a base membar which passes beneath at least one rail.
Preferably, the trapping wheels present femal0 profiles to inter-engage with male profile trapping beams.
In detail, the circumferential recess may have curved wall portions to define a semi-circular or generally semi-circular groove; two planar walls to define a "V"~shaped groove, three .
~14~3~92 planar walls to define a ~uare "C"-shaped groove or comblnations of arcuate and planar walls.
~or a trapping wheel having an arcuate groove, the trapping beam may have a circular periphery adjacent the trapping wheels or may be of circular section. For a trapping wheel having a "V"-~haped groove, the trapping beam may be constituted by a length of angle iron, suitably angularly mounted. Alternativelys square section tubing may be angularly mounted.
~or a trapping wheel having a square "C"-shaped groove e.g. proYided by a wheel having a pair of spaced apart, parallel flanges, the trapping beam may be constituted by rectangular section tubing or by the rail head of a length of conventional railway rail, the rail web bei~g mounted in a generally horizontal plane.
In a preferred embodiment, however, the rece~s of each trapping wheel is oversized with reqpect to the trapping profile presented by the trapping beam, whereby the trapping wheels may, within limits, be displaceable in a vertical plane with respect to the trapping beam. Such a construction i9 particularly advantageous where the rall v~hicle i- oprun~.
In det~il, ehe trappin~ beam~ m~y be of clrcular ~oction and an over~ized ~roove may compri~e upper and lower wall~ that are inclined wi th ro~pect to the axi~ Or rotation of each trapping wheel, the upper and lower walls leadlng to ~ co on bottom ~all parallel to the asi~ o~ rot tlon o~ tha tr~pplng wheel, and the upper and louer vall~ belng ~paced apart by a dist~nce oxceeding tho diometer Or the trapplng boa~ e.g. by up to t~ice lt0 dia~eter.
E~o'n bano o~l~bor may carry ono or a pa$r of trappln~ b~a -t ~nd ~y al~o carry the railN, while the trappl~ bo~- ~y bo loc~tod in~lide or outJ~ide th- r ll- .
T~e r~il vohg ole ~y i~ fact bo elther a ral.l oar or a bo~l-. In th- lattor ca~o, the bo~ie may be Or ths f'orm de~crlbod ln our above-noted U . K . Pa tent l, 580, 547 .
The inventlo~ ~ill now be f`urther de~cribed, by way Or ess~pl--, ~lth referen¢e to the acco~pallylne drawingl~, in ~Ihl oh t -~iæure ~ ectional view~ at B curve, 2S through one half Or ~ flr0t el-bodlment of railway ~8792 equipment in accordance with the invention, the other half corresponding;
Figure 2 i 9 a similar ~ectional view to ~igure 1 but illu~trates a second embodiment;
and ~igure 3 is also a similar sectional view to Figure 1 but illustrate~ a third embodiment.
The railway equipment can be seen to comprise a pair of spaced apart, conventional flat-bottomed railway rails 1 (one only shown), each rail 1 having a head 2 and being mounted on a sleeper 3. Seated on the rails 1 is a vehicle 4 comprising four flanged wheels 5, ~one only shown) these being leading and trailing pair~ of wheels. Each wheel 5 comprising a flange 6 and a frusto-conical, railhead engaging periphery 7, the wheels 5 being suspended on arms 8 from a frame 9 of the vehicle 4 for rotation about an axis 10 extending laterally with respect to the direction of travel of the vehicle 4 along the rails 1.
Between the leading and trailing wheels 5 at each side of the vehicle is a trapping wheel 11 rotatable about an upwardly extending axis 12, each trapping wheel having a circumferential recess ~87~3 13 to mate with a trapping beam 14 having a complementary profile 15 adjacent the rece~s 13, the beam 14 being carried on support arms 16 extending upwardly from a base member in the form of a sleeper 3 which passes beneath at least one rail 1. The vehicle 4 illustrated is of a rope hauled kind, the rope tnot shown) being guided by conventional pullies 17 located between the rails 1.
In the embodiment of Figure 1, the recess 13 comprises a pair of upper and lower curved portions 18 separated by a common, planar portion 19 to define generally a "C"-shaped recess, while the profile 15 is provided by the trapping beam 14 cQmprising a curved length of circ~l:~r section tubing 20, the "C"-shaped recess being oversized with respect to the diameter of the trapping beam 14 to provide play.
In the embodiment of ~igure 2 the recess 13 comprises three planar portions, these being upper and lower portions 21 inclined with respect to the axis 12, and separated by a common portion 22 parallel to the axis 12 of the trapping wheel, f to define a half hexagonal groove. In this embodiment ~1~879Z
-- 7 ~
the profile 15 of the trapping beam 14 is "V"-shaped and is provided by angularly mount-ing a curved length of square section tubing 23, and the recess 13 is oversized with respect to the tubing 23.
In the embodiment of Figure 3 the recess 13 again comprises three planar portions these being upper and lower portions 24 extending laterally with respect to the axis 12 and again separated by a common portion 25 parallel to the axis 12, to define a square, "C"-shaped recess. In this embodiment the profile 15 is prismatic and is provided by the square mounting of a curved length of square section tubing 26, and the recess 13 is oversized with respect to the tubing 26.
Claims (25)
1. Railway equipment comprising a pair of spaced apart, flat-bottomed railway rails and a rail vehicle, heads of said rails being engaged by leading and trailing pairs of flanged wheels of said rail vehicle, said rail engaging wheels being rotatable about axes extending trans-versely of the direction of movement of said rail vehicle along said rails and said vehicle being provided intermediate said leading and trailing pairs of wheels with a pair of trapping wheels, rotatable about upwardly extending axes, one of said trapping wheels being located at each side of said vehicle and the circumferential periphery of each said trapping wheel having a circumferential recess or projection to mate with a trapping beam having an at least partly complementary profile and positioned adjacent one of said rails at locations of presumed rail vehicle instability, a base member passing beneath at least one of said rails and said beams being carried on support arms extending upwardly from said base member.
2. Railway equipment as claimed in Claim 1, wherein said trapping wheels present female profiles to be engaged by male profile trapping beams.
3. Railway equipment as claimed in Claim 2, wherein each trapping wheel has a circumferential recess with curved wall portions.
4. Railway equipment as claimed in Claim 2, wherein each trapping wheel has a circumferential recess with planar wall portions.
5. Railway equipment as claimed in Claim 2, wherein each trapping wheel has a circumferential recess with both curved and planar wall portions.
6. Railway equipment as claimed in Claim 3, wherein said wall portions define a semi-circular groove and said trapping beams have a circular periphery adjacent said trapping wheels.
7. Railway equipment as claimed in Claim 6, wherein said trapping beams are of circular section.
8. Railway equipment as claimed in Claim 4, wherein two wall portions define a "V"-shaped groove, and said trapping beams have a "V"-shaped periphery adjacent said trapping wheels.
9. Railway equipment as claimed in Claim 8, wherein an angularly mounted angle iron section provides said "V"-shaped periphery of said trapping beam.
10. Railway equipment as claimed in Claim 8, wherein an angularly mounted trapping beam of square section tubing provides said "V"-shaped periphery.
11. Railway equipment as claimed in Claim 4, wherein three wall portions define a square "C"-shaped groove and said trapping beams have a prismatic periphery.
12. Railway equipment as claimed in Claim 11, wherein said prismatic periphery is provided by squarely mounting a trapping beam of square section tubing.
13. Railway equipment as claimed in Claim 11, wherein said prismatic periphery is provided by a rail head of a length of conventional railway rail, a web of said length being mounted in a generally horizontal plane.
14. Railway equipment as claimed in Claim 4, wherein three wall portions define a half hexagonal groove and said trapping beams have a V-shaped periphery adjacent said trapping wheels.
15. Railway equipment as claimed in Claim 14, wherein an angularly mounted angle iron section trapping beam provides said "V"-shaped periphery.
16. Railway equipment as claimed in Claim 15, wherein an angularly mounted trapping beam of square section tubing provides said "V"-shaped periphery.
17. Railway equipment as claimed in Claim 2, wherein the recess of each of said trapping wheels is oversized with respect to said profile presented by said trapping beam, whereby said trapping wheels may, within limits, be displaceable in a vertical plane with respect to said trapping beam.
18. Railway equipment as claimed in Claim 17, comprising trapping beams of circular section and an oversized recess in each of said trapping wheels, said recess comprising upper and lower walls that are inclined with respect to said axis of rotation of each of said trapping wheels, said upper and lower walls leading to a common bottom wall parallel to said axis of rotation of said trapping wheel, and said upper and lower walls being spaced apart by a distance exceeding the diameter of said circular section trapping beams.
19. Railway equipment as claimed in Claim 18, wherein said spacing apart is up to twice said diameter of said trapping beam.
20. Railway equipment as claimed in Claim 1, wherein each of said base members carries a pair of trapping beams.
21. Railway equipment as claimed in Claim 20, wherein each of said base members also carries said pair of rails.
22. Railway equipment as claimed in Claim l, wherein said trapping beams are located inside said rails.
23. Railway equipment as claimed in Claim 1, wherein said trapping beams are located outside said rails.
24. Railway equipment as claimed in Claim 1, wherein said rail vehicle is a rail car.
25. Railway equipment as claimed in Claim 1, wherein said rail vehicle is a bogie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000365584A CA1148792A (en) | 1980-11-26 | 1980-11-26 | Railway equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000365584A CA1148792A (en) | 1980-11-26 | 1980-11-26 | Railway equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1148792A true CA1148792A (en) | 1983-06-28 |
Family
ID=4118563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000365584A Expired CA1148792A (en) | 1980-11-26 | 1980-11-26 | Railway equipment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1148792A (en) |
-
1980
- 1980-11-26 CA CA000365584A patent/CA1148792A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |