CA1192445A - Railroad tank car lift lug - Google Patents
Railroad tank car lift lugInfo
- Publication number
- CA1192445A CA1192445A CA000426971A CA426971A CA1192445A CA 1192445 A CA1192445 A CA 1192445A CA 000426971 A CA000426971 A CA 000426971A CA 426971 A CA426971 A CA 426971A CA 1192445 A CA1192445 A CA 1192445A
- Authority
- CA
- Canada
- Prior art keywords
- lift lug
- bolster
- web
- plate
- edge
- 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
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Abstract
RAILROAD TANK CAR LIFT LUG
Abstract A lift lug for receiving and securing a lifting device to a railroad tank car for re-railing the tank car. The lift lug includes a bolster pad mounted adjacent an end of the tank car and a vertically disposed bolster web, the bolster web having a substantially horizontal extending upper edge. A substantially horizontal base plate is mounted on the extended upper edge of the bolster web with an inner edge of the horizontal base plate secured to the bolster pad. A substantially vertical lift lug plate has its upper edge secured to the bolster pad and its lower edge secured to the base plate. A pair of generally triangular lift lug webs each have their lower edges secured to the base plate, their outer edge secured to the bolster pad. The lift lug plate has an opening adjacent its lower edge.
Abstract A lift lug for receiving and securing a lifting device to a railroad tank car for re-railing the tank car. The lift lug includes a bolster pad mounted adjacent an end of the tank car and a vertically disposed bolster web, the bolster web having a substantially horizontal extending upper edge. A substantially horizontal base plate is mounted on the extended upper edge of the bolster web with an inner edge of the horizontal base plate secured to the bolster pad. A substantially vertical lift lug plate has its upper edge secured to the bolster pad and its lower edge secured to the base plate. A pair of generally triangular lift lug webs each have their lower edges secured to the base plate, their outer edge secured to the bolster pad. The lift lug plate has an opening adjacent its lower edge.
Description
RESf ck A-8kl80 APPI.ICATIO2~ FOR PATENT
TITL~ Railroad Tank Car Lift Lug SPECIFICATIQN
Technical Field Thi invention xelates to railroad tank cars. More specifica~ly, ~his inven~ion relates to lift lug~ or rail road tank cars.
5 Prior Art Railroad tank cars for transporti~g 1 iguid and llke substances form a major portion of thle Unit~d States materials transportation system. t~en a tank car is derailed, it is often necessary to lift the tanlc car to replac:e it on the 10 railxoa~ tra~:k. This is generally done by cran~s which are attached in a number of ways to the tank cax an~ are used to lift the tank car so tha~ it may be maneuYered back onto ~e track. ~ railroad tank car is no~ d~signed ~or these types of lift ~orce~3 and, thereore, may be su~jec~: ~o de~imental 15 orc:~s during re raili~g. The potential hasard~ o the situa~io~ are yreatly increased when the ~a~ car con~ains a dangerous cargo.
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TITL~ Railroad Tank Car Lift Lug SPECIFICATIQN
Technical Field Thi invention xelates to railroad tank cars. More specifica~ly, ~his inven~ion relates to lift lug~ or rail road tank cars.
5 Prior Art Railroad tank cars for transporti~g 1 iguid and llke substances form a major portion of thle Unit~d States materials transportation system. t~en a tank car is derailed, it is often necessary to lift the tanlc car to replac:e it on the 10 railxoa~ tra~:k. This is generally done by cran~s which are attached in a number of ways to the tank cax an~ are used to lift the tank car so tha~ it may be maneuYered back onto ~e track. ~ railroad tank car is no~ d~signed ~or these types of lift ~orce~3 and, thereore, may be su~jec~: ~o de~imental 15 orc:~s during re raili~g. The potential hasard~ o the situa~io~ are yreatly increased when the ~a~ car con~ains a dangerous cargo.
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-2-For these reasons, the Association of American Railroads has re~lired all railroad tank cars built to comply with ta~k car sp~cifica~ions AAR 24-6 Lif~ing Provi~ion Tes~
which reguir~s that "ater applica~ion and relea~e of the required load, visual inspection must rev~al no evidence of p~rr~n~n~ defo~mation in the tanX car tank, bolster or lifting provision except that local deformation is permitted in the hook ~ea~ing area. Il So far as is known to the inven-tors, no inexpensive, sim~le and workable solu~ion ~o this problem has been found which meets ~he ~.A.R. regula~ions and ensures the safety of ~he tank contents.
U.S. Patent Nos. 89,758; 127,095i 152,873; 76fi,521;
1,492,226; lr492,227; 1,438,~41: ~,251,311; 3,752,0~3; and German Patent No. 481,906 all disclose means for lifting railroad cax bodies. None of ~hese patents di~clos~ the use o~ lift lugs, and with the exception o~ U.S. P~tent No.
which reguir~s that "ater applica~ion and relea~e of the required load, visual inspection must rev~al no evidence of p~rr~n~n~ defo~mation in the tanX car tank, bolster or lifting provision except that local deformation is permitted in the hook ~ea~ing area. Il So far as is known to the inven-tors, no inexpensive, sim~le and workable solu~ion ~o this problem has been found which meets ~he ~.A.R. regula~ions and ensures the safety of ~he tank contents.
U.S. Patent Nos. 89,758; 127,095i 152,873; 76fi,521;
1,492,226; lr492,227; 1,438,~41: ~,251,311; 3,752,0~3; and German Patent No. 481,906 all disclose means for lifting railroad cax bodies. None of ~hese patents di~clos~ the use o~ lift lugs, and with the exception o~ U.S. P~tent No.
3,752,083, all are designed for fi~ed placemen~ to unload car bodies a~d n~t or re-railing. U.S. Pa~ent ~o. 3,752,083 discloses a locomotive bogie having liting dog~ by whieh ~he car and truck assembly may be lited. It do~ not disclose any means of lifting the car body apart f.rom the truck assembly.
Summary of the Invention - The pre~ent invention is a railroad tank car lift lug for receivi~g and securing a lifting device to tank car having a bolster pad mounted adjacent an end o ~he tank car and a vertically disposed bolster web, the bol~ter web having a substantially hoxizo~tal ext~n~; ng upper edgs. A
substantially horizontal base plate i.s mounted on the ex-t~nded upper edge of the bolster we~ wi~h an inner edge of~h~ horizontal base plate secure~ to the bolster pad. A
substantially vertical lift lug plate has its upper edge secured to the bolster pad and its lower edge secured to th~
base plate. A pair of generally triangular lit lu~ webs each ha~e their lower edges secured to the baRs plate, their ou~er edge secured ~o the lif~ lug plate and their i~n~r edge secured to ~he bols~er pad. The lift lug plate ha~ an opening adjac~nt its lower edge.
Description of the Drawings Fig. 1 is a perspective view of a tank c~r showing the lift lug of the present invention;
Fi~. 2 i~ an end view of the bolster assembly of Fig. 1 along lines 2-~;
Fig. 3 is a side view of the lift lug assembly along lines 3-3 of Fig. 2;
Fig. 4 is an end view of one lift lug of an alternative embodiment of the present in~en~ion; and Fiy. 5 is a side view of the lift lug of ~he present invention as shown in Fig. 4.
Description o~ the Preferred Embodim~n~
In the dra~ings, Fig. 1 shows a railroad ta~k car T
ha~ing a lift lug L of the present invention. A bolster pad 10 is welde~ to ~he outer surface 12 of the ta~k car T.
Generally, a similar bolster pad will be mount~d a~ ~he opposite end (not shown~ of the railroad tank car T. A
vertically disposed bolster web 14 depends from the bolster pad 1~. The bolster web 14 has a horizontally ex~n~i ng ~0 upper edge 14a on which is mounted a horizon~al base plate 16 with ~n inner edge 16a secured to ~he bolst~r pad 10. A
substantially vertical lift lug plate 18 is secured to ~he horizontal base pla~e 16. The lift lug plate 18 has an upper edge 18a secured to the bols~er pad 10 a~d a lower edge lBb secured to the base plate 16 adjacent the base plate outer edge 16b. The strength of the lift lug L is increas~d by a pair of generally triangular lift luy webs 20 each having a lower edge 20a s~cured to the ba~e plate 16, an outer edge 20b secured to the lift lug plate 1~ and an inner ed~e 20c secured to the bolster pad 10. Formed in the lift lug plate 18 is an invexted V-shaped opening 22 adjacent to ~he lowQr edge 18b of lift lug plate 18.
Thereby is formed a lift lug L of ufficient s~reng~h so ~hat a lifting device such as a crane hook may be in serted and secured in the opening 22 and the railroa~ tanX
car T may be lifted and re-railed without deformation.
The materials of the lift lug L are prefe~ably steel of sufficient strength for lifting of the tank car T fully ., _Ds~
loaded. The parts o the li:Et lug L are preferably walded together and weldad to tank car T. Generally ~ach tank car ha~ four similar liEt lugs; lift lug L as shown, a lit lug L~ on th~ opposite side of the ~ank car T on the bolster pad 5 10, and two more lift lugs (not shown) similarly situated on a bolster pad on ~e other end of the tank car T.
In more de~ail, th~ bolster pad 10 is a generally rec-tangular steel plate which is curved along its length to conform to the bottom of the outer surface 12 of railroad 10 tank car T. The bolster pad 10 ~erves to reinor~e the railroad tank car T at the point where th~ weight is carried by a bol~ter a~sembly 15. The bolster web 14 as viewed irl Fig. 2 is formed with a lef~ por~io~ 14~ and a ris~ht por~ion 14c, generally ha~ing mirror symme~:ry. The bolst~r web 14 15 is a vertically disposed plate d~pending from ~3 bolster pad 10. The main upper edge 14d of bolster w~b 14 i~ general-ly contoured to fit the bolster pad 10 with the exception of passages 24 formed in the ~olster web 14 to allow cooling coils or electrical wiring to be run through ~he bolster w~b 14 along the length of tank car T. Bol~ter web upper edges 14a are gen~rally horizontal and extend out from ~he bolster pad 10. A bolster asfiembly is a s~n~rd part of most railroad tank cars and if i~ is desired to retrofi~ a t~nk car with the present in~en~ion, then its bolster web may b~
cut to form the desired horizontal extended upper edge 14a.
Mounted to the bolster web exte~e~ upper edge 14a is the hori20ntal base plate 16 which is~ generally rectangular and is mounted along its inner edga ].6a ~inner referring to the edge nearest the tank car T~ to ~he bols~er w~b 10, and its outer edge 16b (outer referring to the edge furthe~t from ~he tank car T) is ad~acent the outermost portion o bolster web 14. The ba~e plate 16 is mounted pe~pendicular to the bolster web uppex edge 14a and substantially along ~he base plate cen~er line 16e to equalize forces ~uri~ re~
railing. ~ounted adjacent the base plate out~r edge 16b on the base plate upper surface 16f is the lif~ lug plate 18.
Lift lug plate 18 lower edge 18b is weld~d to ~he upper surface 16f of base plate 1~ adjacent its outer edge 16b and .~
2 L~
~5~
is subs tantially perpendicular ~o the base plate 16 . The lif~ lug pla~e upper end 18a is wel~e~ ~o the bolster pad 10 adj acent the bolster pad end :L4a . To increase ~tru~tural strength, t~e lit lug plate upper edge 18a is curved so 5 that it joins bolster pad 14 sub~;tantially at a right angle.
The pair o substantially identical, generally triangu~
lar li~t lug we~s 20 are each mounted by the insler edge 20c to the bolster pad 10, the lower edge ~Oa to the lbase plate 16 and by the outer edge 20b to the lif~ lug plat~ 18, One 10 lift lug web 20 is mounted adjac:ent the orward (for.irard meaning the end shown i~ Fig. 1~ edges of horizontal base plate 16 and lit lug plate 18 and the other adj ac:ent the rearward ~meaning the end not shown in Fig~ 1) edge~; of ba~;e plate 16 and lift lug plate 18. Thereby a ~o~ i~ for~ed by the bolster pad 14, the hori20ntal base plate 16, ~he lift lug platP 18 and the t~o lift lug webs 20. The lift lug pla~e 18 has fonmed in i~ an inverted V~shaped opening 22 a~jacent lift lu~ plate lower end 18b which will accept and se~ure the liting device to re-rail the tank car T. I~ the ~0 preferred embodiment, the verte~ of the V will be ro~nded.
The strength of the lift lug L is increa~ed by a generally rect~ngular ~ide cover plate 26 mounted by its upper edge 2~a beneath the base plate ou~er edg~ 16b and at~
tached along its center line 26b ~o ~he outer edge 14e o bolster web 1~. The side cover plat~ lower edge~26c i5 mounted to a bottom horizon~al member 28 which is mounted perpendicular to the lower edge l~f of bol~ter wab 14.
Other portions of ~he bolster assembly 15, which are typical ea~ures of railroad ~ank cars, include the center filler box 30 mounted between the left 14b and right 14c portion~ of bolster web 14 and center plate 32, joined to the bottom o center filler box 30, which rides in ~he ~ruck assembly ~not shown~ o the railroad tank car T. A center plate pin 34 e~tends through the cen-ter filler bo~ 30 c~nd the center plate 32 to rotatably guide the ta~k car T on the truck assembly. A~ end framing 36, of generally rectc~ngular shape, extends around the tank car T, moun~ed ~o the hori-zontal bolster bottom member 28 and is used for safe~y purposes on the tank car T. Gusset 38 is mounted between the side cove~ plate 2~ and the end fxaming 36 to increase stxuctural strength.
In an alterIlative embo~nen~ of the present inven~ion, 5 as shown in Fig. 4 And 5, using identical number~ for iden-tical par~s, a bolster pad 10 is mounted to the outer sur-face 12 of a tank car T. A ~rerti~ally dispo~ed bol~ter web ~14 depends from the bolster pad ~. Tha bolster web 14 has a horizontal upper edge 14a f:rom which iB mounted a hori-10 20ntal base plate 16 with an inner edge 16a secured to the bolster pad 10. A vertical lift lug plate 18 is secured to the horizontal base plate 16. ~he lift lug plat~ 18 has an upper edge 18a secured to the bolster pad 10 and a lower edge 18b secured to ~he base plate 16 along itS oUter edge 15 16b. A generally triangular lift lug web 40 has a lower edge 40a secured to the~ base plate 16, an outer edge 40b secured to the lift lug plate 18 and an iImer edge 40c ~ecured to the bolster pad 10. Formed in t:he lift lug pla~e 18 is an in~terted V-shaped opening 22 adjacen~ to the lower 20 edge 18b Of lift lug pla~e 18. The lift lug web 40 has formed in i~s outer edye 40b a semicircular sectio~ ~2. The opening 42 allows easy placement of a hook through li~t lug plate opening 22. The lift lug web 40 is mounted substan-tially along the center line 18c of lift lug plat~ 18 and the horizontal plate center line 16e and ~hereforP is substan-tially coplaner with bolster web 14.
Except for the changed lift lug web 40, the two embodi-ments are substantially identical. The ope~ing ~2 has a rounded vertex. The lift lug plate 1~3 is curved adja~ent its upper edge 18a to meet bolster web 10 at substantially a right angle. A ~ide cover plate 26 is mounted pe~pendicu~
larly by an uppex ed~e 25a to ~he base plate outer edg~ 16b and the bolster web outer edge 14e.
The foregoing disclosure and description o~ the inven-tion are illustrated and explanatory thereof, and variouschanges in the size, shape materials as w~ll a~ in the details of the illustrated construction may be made without departing from the spirit of the invention.
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Summary of the Invention - The pre~ent invention is a railroad tank car lift lug for receivi~g and securing a lifting device to tank car having a bolster pad mounted adjacent an end o ~he tank car and a vertically disposed bolster web, the bol~ter web having a substantially hoxizo~tal ext~n~; ng upper edgs. A
substantially horizontal base plate i.s mounted on the ex-t~nded upper edge of the bolster we~ wi~h an inner edge of~h~ horizontal base plate secure~ to the bolster pad. A
substantially vertical lift lug plate has its upper edge secured to the bolster pad and its lower edge secured to th~
base plate. A pair of generally triangular lit lu~ webs each ha~e their lower edges secured to the baRs plate, their ou~er edge secured ~o the lif~ lug plate and their i~n~r edge secured to ~he bols~er pad. The lift lug plate ha~ an opening adjac~nt its lower edge.
Description of the Drawings Fig. 1 is a perspective view of a tank c~r showing the lift lug of the present invention;
Fi~. 2 i~ an end view of the bolster assembly of Fig. 1 along lines 2-~;
Fig. 3 is a side view of the lift lug assembly along lines 3-3 of Fig. 2;
Fig. 4 is an end view of one lift lug of an alternative embodiment of the present in~en~ion; and Fiy. 5 is a side view of the lift lug of ~he present invention as shown in Fig. 4.
Description o~ the Preferred Embodim~n~
In the dra~ings, Fig. 1 shows a railroad ta~k car T
ha~ing a lift lug L of the present invention. A bolster pad 10 is welde~ to ~he outer surface 12 of the ta~k car T.
Generally, a similar bolster pad will be mount~d a~ ~he opposite end (not shown~ of the railroad tank car T. A
vertically disposed bolster web 14 depends from the bolster pad 1~. The bolster web 14 has a horizontally ex~n~i ng ~0 upper edge 14a on which is mounted a horizon~al base plate 16 with ~n inner edge 16a secured to ~he bolst~r pad 10. A
substantially vertical lift lug plate 18 is secured to ~he horizontal base pla~e 16. The lift lug plate 18 has an upper edge 18a secured to the bols~er pad 10 a~d a lower edge lBb secured to the base plate 16 adjacent the base plate outer edge 16b. The strength of the lift lug L is increas~d by a pair of generally triangular lift luy webs 20 each having a lower edge 20a s~cured to the ba~e plate 16, an outer edge 20b secured to the lift lug plate 1~ and an inner ed~e 20c secured to the bolster pad 10. Formed in the lift lug plate 18 is an invexted V-shaped opening 22 adjacent to ~he lowQr edge 18b of lift lug plate 18.
Thereby is formed a lift lug L of ufficient s~reng~h so ~hat a lifting device such as a crane hook may be in serted and secured in the opening 22 and the railroa~ tanX
car T may be lifted and re-railed without deformation.
The materials of the lift lug L are prefe~ably steel of sufficient strength for lifting of the tank car T fully ., _Ds~
loaded. The parts o the li:Et lug L are preferably walded together and weldad to tank car T. Generally ~ach tank car ha~ four similar liEt lugs; lift lug L as shown, a lit lug L~ on th~ opposite side of the ~ank car T on the bolster pad 5 10, and two more lift lugs (not shown) similarly situated on a bolster pad on ~e other end of the tank car T.
In more de~ail, th~ bolster pad 10 is a generally rec-tangular steel plate which is curved along its length to conform to the bottom of the outer surface 12 of railroad 10 tank car T. The bolster pad 10 ~erves to reinor~e the railroad tank car T at the point where th~ weight is carried by a bol~ter a~sembly 15. The bolster web 14 as viewed irl Fig. 2 is formed with a lef~ por~io~ 14~ and a ris~ht por~ion 14c, generally ha~ing mirror symme~:ry. The bolst~r web 14 15 is a vertically disposed plate d~pending from ~3 bolster pad 10. The main upper edge 14d of bolster w~b 14 i~ general-ly contoured to fit the bolster pad 10 with the exception of passages 24 formed in the ~olster web 14 to allow cooling coils or electrical wiring to be run through ~he bolster w~b 14 along the length of tank car T. Bol~ter web upper edges 14a are gen~rally horizontal and extend out from ~he bolster pad 10. A bolster asfiembly is a s~n~rd part of most railroad tank cars and if i~ is desired to retrofi~ a t~nk car with the present in~en~ion, then its bolster web may b~
cut to form the desired horizontal extended upper edge 14a.
Mounted to the bolster web exte~e~ upper edge 14a is the hori20ntal base plate 16 which is~ generally rectangular and is mounted along its inner edga ].6a ~inner referring to the edge nearest the tank car T~ to ~he bols~er w~b 10, and its outer edge 16b (outer referring to the edge furthe~t from ~he tank car T) is ad~acent the outermost portion o bolster web 14. The ba~e plate 16 is mounted pe~pendicular to the bolster web uppex edge 14a and substantially along ~he base plate cen~er line 16e to equalize forces ~uri~ re~
railing. ~ounted adjacent the base plate out~r edge 16b on the base plate upper surface 16f is the lif~ lug plate 18.
Lift lug plate 18 lower edge 18b is weld~d to ~he upper surface 16f of base plate 1~ adjacent its outer edge 16b and .~
2 L~
~5~
is subs tantially perpendicular ~o the base plate 16 . The lif~ lug pla~e upper end 18a is wel~e~ ~o the bolster pad 10 adj acent the bolster pad end :L4a . To increase ~tru~tural strength, t~e lit lug plate upper edge 18a is curved so 5 that it joins bolster pad 14 sub~;tantially at a right angle.
The pair o substantially identical, generally triangu~
lar li~t lug we~s 20 are each mounted by the insler edge 20c to the bolster pad 10, the lower edge ~Oa to the lbase plate 16 and by the outer edge 20b to the lif~ lug plat~ 18, One 10 lift lug web 20 is mounted adjac:ent the orward (for.irard meaning the end shown i~ Fig. 1~ edges of horizontal base plate 16 and lit lug plate 18 and the other adj ac:ent the rearward ~meaning the end not shown in Fig~ 1) edge~; of ba~;e plate 16 and lift lug plate 18. Thereby a ~o~ i~ for~ed by the bolster pad 14, the hori20ntal base plate 16, ~he lift lug platP 18 and the t~o lift lug webs 20. The lift lug pla~e 18 has fonmed in i~ an inverted V~shaped opening 22 a~jacent lift lu~ plate lower end 18b which will accept and se~ure the liting device to re-rail the tank car T. I~ the ~0 preferred embodiment, the verte~ of the V will be ro~nded.
The strength of the lift lug L is increa~ed by a generally rect~ngular ~ide cover plate 26 mounted by its upper edge 2~a beneath the base plate ou~er edg~ 16b and at~
tached along its center line 26b ~o ~he outer edge 14e o bolster web 1~. The side cover plat~ lower edge~26c i5 mounted to a bottom horizon~al member 28 which is mounted perpendicular to the lower edge l~f of bol~ter wab 14.
Other portions of ~he bolster assembly 15, which are typical ea~ures of railroad ~ank cars, include the center filler box 30 mounted between the left 14b and right 14c portion~ of bolster web 14 and center plate 32, joined to the bottom o center filler box 30, which rides in ~he ~ruck assembly ~not shown~ o the railroad tank car T. A center plate pin 34 e~tends through the cen-ter filler bo~ 30 c~nd the center plate 32 to rotatably guide the ta~k car T on the truck assembly. A~ end framing 36, of generally rectc~ngular shape, extends around the tank car T, moun~ed ~o the hori-zontal bolster bottom member 28 and is used for safe~y purposes on the tank car T. Gusset 38 is mounted between the side cove~ plate 2~ and the end fxaming 36 to increase stxuctural strength.
In an alterIlative embo~nen~ of the present inven~ion, 5 as shown in Fig. 4 And 5, using identical number~ for iden-tical par~s, a bolster pad 10 is mounted to the outer sur-face 12 of a tank car T. A ~rerti~ally dispo~ed bol~ter web ~14 depends from the bolster pad ~. Tha bolster web 14 has a horizontal upper edge 14a f:rom which iB mounted a hori-10 20ntal base plate 16 with an inner edge 16a secured to the bolster pad 10. A vertical lift lug plate 18 is secured to the horizontal base plate 16. ~he lift lug plat~ 18 has an upper edge 18a secured to the bolster pad 10 and a lower edge 18b secured to ~he base plate 16 along itS oUter edge 15 16b. A generally triangular lift lug web 40 has a lower edge 40a secured to the~ base plate 16, an outer edge 40b secured to the lift lug plate 18 and an iImer edge 40c ~ecured to the bolster pad 10. Formed in t:he lift lug pla~e 18 is an in~terted V-shaped opening 22 adjacen~ to the lower 20 edge 18b Of lift lug pla~e 18. The lift lug web 40 has formed in i~s outer edye 40b a semicircular sectio~ ~2. The opening 42 allows easy placement of a hook through li~t lug plate opening 22. The lift lug web 40 is mounted substan-tially along the center line 18c of lift lug plat~ 18 and the horizontal plate center line 16e and ~hereforP is substan-tially coplaner with bolster web 14.
Except for the changed lift lug web 40, the two embodi-ments are substantially identical. The ope~ing ~2 has a rounded vertex. The lift lug plate 1~3 is curved adja~ent its upper edge 18a to meet bolster web 10 at substantially a right angle. A ~ide cover plate 26 is mounted pe~pendicu~
larly by an uppex ed~e 25a to ~he base plate outer edg~ 16b and the bolster web outer edge 14e.
The foregoing disclosure and description o~ the inven-tion are illustrated and explanatory thereof, and variouschanges in the size, shape materials as w~ll a~ in the details of the illustrated construction may be made without departing from the spirit of the invention.
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Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising:
a bolster pad mounted adjacent an end of the tank car;
a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge;
a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad;
a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate;
a pair of generally triangular lift lug webs each having a lower edge secured to said base plate, an outer edge secured to said lift lug plate and an inner edge se-cured to said bolster pad; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
a bolster pad mounted adjacent an end of the tank car;
a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge;
a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad;
a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate;
a pair of generally triangular lift lug webs each having a lower edge secured to said base plate, an outer edge secured to said lift lug plate and an inner edge se-cured to said bolster pad; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
2. The structure set forth in claim 1, wherein:
said lift lug plate opening has an inverted V-shape.
said lift lug plate opening has an inverted V-shape.
3. The structure set forth in claim 1, wherein.
said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said holster web at substantially a right angle.
said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said holster web at substantially a right angle.
4. The structure set forth in claim 1, including:
a side cover plate mounted perpendicularly by an upper edge to the outer edge of and below said horizontal base plate and mounted to the outer edge of said bolster web.
a side cover plate mounted perpendicularly by an upper edge to the outer edge of and below said horizontal base plate and mounted to the outer edge of said bolster web.
5. A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising:
a bolster pad mounted adjacent an end of the tank car:
a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge;
a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad;
a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate;
a generally triangular lift lug web having a lower edge secured adjacent to the center line of said base plate, an outer edge secured adjacent to the center line of said lift lug plate and an inner edge secured to said bolster pad;
said lift lug web having portions defining a gen-erally semicircular opening adjacent said lift lug web outer edge; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
a bolster pad mounted adjacent an end of the tank car:
a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge;
a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad;
a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate;
a generally triangular lift lug web having a lower edge secured adjacent to the center line of said base plate, an outer edge secured adjacent to the center line of said lift lug plate and an inner edge secured to said bolster pad;
said lift lug web having portions defining a gen-erally semicircular opening adjacent said lift lug web outer edge; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
6. The structure set forth in claim 5, wherein said lift lug plate has an inverted V-shaped opening.
7. The structure set forth in claim 5, wherein:
said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said bolster web at substantially a right angle.
said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said bolster web at substantially a right angle.
8. The lift lug assembly of claim 5, including:
a side cover plate mounted perpendicularly by an upper edge to the outer edge of said horizontal base plate and mounted to the outer edge of said bolster web.
a side cover plate mounted perpendicularly by an upper edge to the outer edge of said horizontal base plate and mounted to the outer edge of said bolster web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000426971A CA1192445A (en) | 1983-04-29 | 1983-04-29 | Railroad tank car lift lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000426971A CA1192445A (en) | 1983-04-29 | 1983-04-29 | Railroad tank car lift lug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1192445A true CA1192445A (en) | 1985-08-27 |
Family
ID=4125126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000426971A Expired CA1192445A (en) | 1983-04-29 | 1983-04-29 | Railroad tank car lift lug |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1192445A (en) |
-
1983
- 1983-04-29 CA CA000426971A patent/CA1192445A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |