CA1094650A - Device for the welding of railway rails, steel sections or the like - Google Patents
Device for the welding of railway rails, steel sections or the likeInfo
- Publication number
- CA1094650A CA1094650A CA277,392A CA277392A CA1094650A CA 1094650 A CA1094650 A CA 1094650A CA 277392 A CA277392 A CA 277392A CA 1094650 A CA1094650 A CA 1094650A
- Authority
- CA
- Canada
- Prior art keywords
- mold
- members
- parts
- welding
- insert
- 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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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Apparatus for use in the welding together of rail-road rails, superstructure profiles, to thereby extend the same lengthwise using bar or wire electrodes characterized by pro-filed mold members substantially covering up the joint between the parts to be welded together, the mold members comprising copper material and having an elongated surface running in parallel to and adjacent to the like ones of the parts that are to be welded and the mold members including means to prevent fusing of the copper material during welding and thus affecting the purity of the welding seam, influencing the same disadvan-tageously.
Apparatus for use in the welding together of rail-road rails, superstructure profiles, to thereby extend the same lengthwise using bar or wire electrodes characterized by pro-filed mold members substantially covering up the joint between the parts to be welded together, the mold members comprising copper material and having an elongated surface running in parallel to and adjacent to the like ones of the parts that are to be welded and the mold members including means to prevent fusing of the copper material during welding and thus affecting the purity of the welding seam, influencing the same disadvan-tageously.
Description
t~
The present invention relates to apparatusor use in the welding together of sections of railroad rails by the use of electrodes. More specifically, the present lnvention contemplates the use of mold means in the form of members to cover the parts or sections of the rail~ ~o b~ welded ~ogether, the mold ~embers having a specific shape and bein~ constituted o~ speci~ic material~ to ~acil~tate the welding, X~ ha~ bec~me a desirable practice in the building of xail~ay beds to weld the sections of the rails togethex to provide a smoother ride to the rail-way passen~ers as well as ~o reduce the noise generated when the wheels of the cars roll over the tracks. In ~he case of autogenous welding, that is, where the ends of rail sec~ion~ are butted toge~her and hea~ed ~o fuse ~he parts t it has been the practice for two welders to work on one rail joint with burners operating ~oward ~ach other in order ~o minimize the time required to efect the weld over the relatively large cross-section 20 of the xailO Howe~er, such a procedure is expensive ~n ~erms of labor co~ts and also requires a considerable re~working of ~he welded section~ to smooth them out.
It i~ an object of the presen~ inven~ion ~o provide a~para~u~ for use in electroda ~ype welding of ~h~ joint ~etween railway sec~ions which can be _~,.............................. .
~'~
., .j ,, .
3~
carried out by a single welder and which minimizes, if not entirely eliminates, the necessity of re-working the joint af'.er the weld is completed to finish it~
Fox ~-he attainment of these ends, the present inven~ion provides a pluxality of mol~ members which are disposecl around the joint of th~ sections to be w~lded together. The mold members are constructed of copper or ceramic materi21 and have a surface which runs paralle~ to the surface of the parts ~hat are to be welded. Spacing mem~er~ are provided on the mold ~embexs which con~act ~he rails and hold the mold members at a pxedetermined distance from the surface of the xails, Advantageously, the mold members are so shaped that normal railway traffic need not be interrupted when the mold members are in place, As a result, as soon as a train has passed, the welder may return immediately to car~y~ng out the welding without any adjus~ment of the mold membersO
. In on~ emhodiment, the mold members disposed on opposite sides of ~he xail arP held together by a ~pring clip ~ainst the parts to be weldedO The external $ur'3ce of the molds is prov~ded with recesses fox re-çeiv~ng the spring ~lip~ Further, the mold mem~ers tha~ are placed on opposite $ides ~f the rail are shaped to conform elosely to the web portion and rai~ head~
: . -2 A particularly durable and shock resistant arrangement for making a very good weld sea~ includes a mold member having a recess corresponding to the joint to be welded where a fire-resistant insert is removably disposed in the recess of the mold-member along its length corresponding to the ~ointO
While the mold~members may be made entirely of copper, the present invention contemplates using a cexamic insert to avoid the problem which arises when unskilled workers perform the welding and the copper mel1s and Euses to surrounding ele-ments. It has been found, on the other hand, when the mold-members are made entirely of ceramic, they are not durable enough to provide a useful life. Thus, the present invention proposes using a ceramic insert in a mold-member, the body of which is copper. The mold-member, in this instance, would have a holding peg located in the recess to cooperate with a b~re formed in the insert to removably hold the ceramic insert in place during use. ~he insert may be usefully formed with a grooYe which would be locat~d adjacent to the joint to be welded tc run parallel therewith.
In accordance with one aspect of the present invention, there is provided an apparatus for use in the welding together of railroad xails, superstructure profiles, to thereby extend the same lengthwise using bar or wire ele~trodes chara~terized by profiled mold members substantially covering up the joint between the parts to be welded together, said mold members com-prising copper material and having an elongated surface running in parallel to and adjacent to the like ones of the parts tha~
are to be welded and said mold members including means to pre-vent fusing of the copper material during welding and thus affecting the purity o the welding seam, influencing the same disadvantageou~ly .
~3 In accordance with a further aspect of the present in-vention, there is provided an apparatus for the welding together of railroad rails, supperstructure profiles, to thereby extend the the same lengthwise, using bar or wire electrodes, characterized by pro:f.iled mold-members substantially covering up the joint between the parts to be welded together, said members being made of preferably pure copper and having an elongated surface running in parallel to and adjacent to like ones of the parts that are to be welded, spacers located intermediate said mem-bers and parts for maintaining said members in parts in selected spaced relation, said mold-members further including .spaced transverse bores for accomrnodating said spacers having pro-truding heads or the like and which act respectively as a locater for the parts that are to be welded together~
In accordance with a still further aspect of the present invention, there is provided apparatus for the welding of railroad rails, superstructure profiles, to thereby extend the same lengthwise, using bar or wire electrodes, characterized by profiled mold-members substantially covering up the joint between the parts to be welded together, said members having an elongated surface running in parallel to and adjacent to like ones of the parts that are to be welded, which surface includes a recess in which an insert of fireproof material is disposed, said mold-members comprise copper material except the insert which is of ceramic material, and wherein holding peg means is disposed on the bottom of the recess for use in se~uring said insertO
The foregoing and other advantages will ~ecome apparent as cons.ideration is given to the following detailed description taken in conjunction with the drawings, in which 3a-F~gure 1 is an end view il '.ustrating three mold members assembled about a rail section according . to the present inYention, ~ igur~ 2 is a side elevational view of the , 5 lower mold membex o~ Figure l;
Figure 3 is a top plan view o the mold mel~ber oE Figure 2;
Figure 4 is a front elevational view of a late~al mold mem~er of Figure l;
la Figure 5 is a perspective view o~ a modified mold member. a.ccording to the present invention;
Figure 6 is a front elevational view of the mold member o~E Figure 5 showing an insert in place;
Figure 7 is a modified mold member which is 15 located beneath ~.e rail sec tion; and E'igure 8 is a tsp plan view of the mola mem-~er o~ Figure 70 ~4--",~-i .
. ~ ~
!
~ eferring now ~o the drawings wherein like numeral.~ designate corresponding parts throughout the several views, there is shown in Figure 1, the plurality of mold means of the presel-.t inven ion dis-5 posed about a rail 1. The mold members span a iointbe~ween the ends of rail 1 and the next adjacent rail (~ot shown)~ A mold member 3 made of copper is placed below the foot 2 of the rail prior to the welding opera-~ion so that the member 3 spans the interval o~ the ~oint.
The mold members 6 and 7, als~ made of copper, are p~aced laterally on both sides of the rail w~bs 4 and of the rail heads 5 and a spring clip ~ ls placed as illustrated to hold the members 6 and 7 ti~htly against the xail web 4.
The copper mold members 3, 6 and 7 have trans-vex~e bores 9 into which rivets 10 may be inserted.
The rivet head~ 11 protrude from the bores 9 and abut against the rail ~eb ~ to thereby provide a gap 12 between the mold members 3~ 6 and 7 facing the rail part~ to be welded. As illustrated in ~igure 1, the . . . ~
..
, '., ~ ': ; .
surface~ o the mold members 3 ~ 6 and 7 which face the rail par$s are shaped to closely conform to ~he exterior surface of the rails so that the gap 12 ~ approximately the same dimension at all points S between the rail and the mold members 3, 6 and 70 Wi~h this arrangement, during the welding operation~ the r~sulting liquid slag can flow away ~n the gal?s 12 to form a layer betweerl the mold member suriEaces and the s~lrface of the rails, ~hus lû ~creening the weld agains!t oxygen and nitrogen and al~o advant~geously allowing the weld to cool slowly and thus minimize or elimlnate the creation of local 5tresse~ ~n the weld jo~ntO
.
~5 ~ he mold member~ 3, 6 and 7 may be made of pure copper since this element will not connect during wèlding with the rails. On ~he other ha~d, the oopper mold members will effec~ a good shaping of the weld and will preven~ the occurrénce of swelling or beading of th~ weld joint, ~hus minimizlng or e~en eliminating the ne¢essity o re-wor~in~ the joint after the welding is comple~edO
The exterior surfaces of the mold members 6 and 7 may have surface area enlarging forma~ions $uch as rece~ses 13 to improve heat dissipation from the mold me~ers.
~ h2 lower mold member 3 on its top side may bQ pro~ided wlth a groove or drai~ 14 or the weld bath.
~ previously noted, the lateral mold members ~ and 7 may be held toge~her by a spring clamping clip 8, the ends 15 of which engage wi~h corresponding re-cesses 16 formed i~ the exterior surfaces of the mold membe~s. .I~ will be understQod~ of courseO that the spring clip 8 may be s~ifted to clamp from below the xa~ n general, the lateral mo~d members 6 and 7 are put in place whenever khe lower mold memher 3 has ~een ~nserted under the rail and the welding searn has alr~ady been e~fected at the foo~ 2 of khe railO 5ub-æequentlyO welding materials may be ;nserted into ~he 5g:~
join~ between the rails above ~lle foG~ and ~hen the lalteral mc~ld m/~mbers 6 and 7 placed in position to assure the dçsired shaping of t~e welding seam.
Referring now to Figures S and 5, khere is disclosed a laterai mold member 21 which has a metallic bc)dy, pre~erably of copper. The mold member 21 has in ilts surface which faces the rail a grooved recess 22 extending from the upper edge to the lower s~dge of the member~ Into the recess 22 an inse.rt 23 of fixe resis-tan~ material such as refractory or ceramic rnaterial i~ disposedO A holdlng pe~ 24 may be provided in the a:ecess 24 I:o cos~erate with a bore in the inser~ 23 l~o hold the inser~ in place7 The insert 23 its~1~ is providea with a longitudinal groove extending from the top to the ~ottom edge of the mold member 2lo Referring now to the em~odiment of Figures 7 and 8, thexe is illustrated ano~her modifi-.ation of à ~old member ~1 which i5 formed as a lower mold member corr~sponding ~o the mold member 3 of Figure 1. Mold memb~r 219 is provided with a recess 22' extending from ona ed~e ~o an opposite edge thereof. As with the embr,~:lments of Figures 5 and 6, the recess 22 ' is pro vided with holding pegs 241 which cooperate with bores ` ~ormed in ~he rear sur~ace of an insert 23 9 ~o hold the ~nsert 23 t in the groove or recess ~2'. Preferably, the -8~
D ~
ins~rt 23~ is made of a ceramic or other ~ireproof or ~re~resistant material and is removably held in the mold member ~y the holding peg~ 24'1 Thus, ~he inserts 23 and ~3~ are easily remova~le so that they can be xeplaced when worn out by ~ew inserts.
Spacing means similar to those shown at 11 in Figures 1 and 2 may also be provided in the mold members 21 and 21' illustra~ed in Figures 5-8. Ordinarily, however0 the provision of the longitudinal grooves 2S
10and ~5 in the inserts 23 and 23' will eliminate the need for such spaclng meansO Also, ~h~ mold members o~ Figures S~8 may also be held in place by a spring clip in a manner analagous to that illustrated in ~gux~ lo lSWhile ~he ~or going has been a description of th~ p~eferxed embodiments of the invention0 it will ~e obvious t~ those skilled in ~his art ~hat various modi~ications may be made therein without departing from the spirit ~nd scope of the present ~nvention a~ deined in he appended claims.
The present invention relates to apparatusor use in the welding together of sections of railroad rails by the use of electrodes. More specifically, the present lnvention contemplates the use of mold means in the form of members to cover the parts or sections of the rail~ ~o b~ welded ~ogether, the mold ~embers having a specific shape and bein~ constituted o~ speci~ic material~ to ~acil~tate the welding, X~ ha~ bec~me a desirable practice in the building of xail~ay beds to weld the sections of the rails togethex to provide a smoother ride to the rail-way passen~ers as well as ~o reduce the noise generated when the wheels of the cars roll over the tracks. In ~he case of autogenous welding, that is, where the ends of rail sec~ion~ are butted toge~her and hea~ed ~o fuse ~he parts t it has been the practice for two welders to work on one rail joint with burners operating ~oward ~ach other in order ~o minimize the time required to efect the weld over the relatively large cross-section 20 of the xailO Howe~er, such a procedure is expensive ~n ~erms of labor co~ts and also requires a considerable re~working of ~he welded section~ to smooth them out.
It i~ an object of the presen~ inven~ion ~o provide a~para~u~ for use in electroda ~ype welding of ~h~ joint ~etween railway sec~ions which can be _~,.............................. .
~'~
., .j ,, .
3~
carried out by a single welder and which minimizes, if not entirely eliminates, the necessity of re-working the joint af'.er the weld is completed to finish it~
Fox ~-he attainment of these ends, the present inven~ion provides a pluxality of mol~ members which are disposecl around the joint of th~ sections to be w~lded together. The mold members are constructed of copper or ceramic materi21 and have a surface which runs paralle~ to the surface of the parts ~hat are to be welded. Spacing mem~er~ are provided on the mold ~embexs which con~act ~he rails and hold the mold members at a pxedetermined distance from the surface of the xails, Advantageously, the mold members are so shaped that normal railway traffic need not be interrupted when the mold members are in place, As a result, as soon as a train has passed, the welder may return immediately to car~y~ng out the welding without any adjus~ment of the mold membersO
. In on~ emhodiment, the mold members disposed on opposite sides of ~he xail arP held together by a ~pring clip ~ainst the parts to be weldedO The external $ur'3ce of the molds is prov~ded with recesses fox re-çeiv~ng the spring ~lip~ Further, the mold mem~ers tha~ are placed on opposite $ides ~f the rail are shaped to conform elosely to the web portion and rai~ head~
: . -2 A particularly durable and shock resistant arrangement for making a very good weld sea~ includes a mold member having a recess corresponding to the joint to be welded where a fire-resistant insert is removably disposed in the recess of the mold-member along its length corresponding to the ~ointO
While the mold~members may be made entirely of copper, the present invention contemplates using a cexamic insert to avoid the problem which arises when unskilled workers perform the welding and the copper mel1s and Euses to surrounding ele-ments. It has been found, on the other hand, when the mold-members are made entirely of ceramic, they are not durable enough to provide a useful life. Thus, the present invention proposes using a ceramic insert in a mold-member, the body of which is copper. The mold-member, in this instance, would have a holding peg located in the recess to cooperate with a b~re formed in the insert to removably hold the ceramic insert in place during use. ~he insert may be usefully formed with a grooYe which would be locat~d adjacent to the joint to be welded tc run parallel therewith.
In accordance with one aspect of the present invention, there is provided an apparatus for use in the welding together of railroad xails, superstructure profiles, to thereby extend the same lengthwise using bar or wire ele~trodes chara~terized by profiled mold members substantially covering up the joint between the parts to be welded together, said mold members com-prising copper material and having an elongated surface running in parallel to and adjacent to the like ones of the parts tha~
are to be welded and said mold members including means to pre-vent fusing of the copper material during welding and thus affecting the purity o the welding seam, influencing the same disadvantageou~ly .
~3 In accordance with a further aspect of the present in-vention, there is provided an apparatus for the welding together of railroad rails, supperstructure profiles, to thereby extend the the same lengthwise, using bar or wire electrodes, characterized by pro:f.iled mold-members substantially covering up the joint between the parts to be welded together, said members being made of preferably pure copper and having an elongated surface running in parallel to and adjacent to like ones of the parts that are to be welded, spacers located intermediate said mem-bers and parts for maintaining said members in parts in selected spaced relation, said mold-members further including .spaced transverse bores for accomrnodating said spacers having pro-truding heads or the like and which act respectively as a locater for the parts that are to be welded together~
In accordance with a still further aspect of the present invention, there is provided apparatus for the welding of railroad rails, superstructure profiles, to thereby extend the same lengthwise, using bar or wire electrodes, characterized by profiled mold-members substantially covering up the joint between the parts to be welded together, said members having an elongated surface running in parallel to and adjacent to like ones of the parts that are to be welded, which surface includes a recess in which an insert of fireproof material is disposed, said mold-members comprise copper material except the insert which is of ceramic material, and wherein holding peg means is disposed on the bottom of the recess for use in se~uring said insertO
The foregoing and other advantages will ~ecome apparent as cons.ideration is given to the following detailed description taken in conjunction with the drawings, in which 3a-F~gure 1 is an end view il '.ustrating three mold members assembled about a rail section according . to the present inYention, ~ igur~ 2 is a side elevational view of the , 5 lower mold membex o~ Figure l;
Figure 3 is a top plan view o the mold mel~ber oE Figure 2;
Figure 4 is a front elevational view of a late~al mold mem~er of Figure l;
la Figure 5 is a perspective view o~ a modified mold member. a.ccording to the present invention;
Figure 6 is a front elevational view of the mold member o~E Figure 5 showing an insert in place;
Figure 7 is a modified mold member which is 15 located beneath ~.e rail sec tion; and E'igure 8 is a tsp plan view of the mola mem-~er o~ Figure 70 ~4--",~-i .
. ~ ~
!
~ eferring now ~o the drawings wherein like numeral.~ designate corresponding parts throughout the several views, there is shown in Figure 1, the plurality of mold means of the presel-.t inven ion dis-5 posed about a rail 1. The mold members span a iointbe~ween the ends of rail 1 and the next adjacent rail (~ot shown)~ A mold member 3 made of copper is placed below the foot 2 of the rail prior to the welding opera-~ion so that the member 3 spans the interval o~ the ~oint.
The mold members 6 and 7, als~ made of copper, are p~aced laterally on both sides of the rail w~bs 4 and of the rail heads 5 and a spring clip ~ ls placed as illustrated to hold the members 6 and 7 ti~htly against the xail web 4.
The copper mold members 3, 6 and 7 have trans-vex~e bores 9 into which rivets 10 may be inserted.
The rivet head~ 11 protrude from the bores 9 and abut against the rail ~eb ~ to thereby provide a gap 12 between the mold members 3~ 6 and 7 facing the rail part~ to be welded. As illustrated in ~igure 1, the . . . ~
..
, '., ~ ': ; .
surface~ o the mold members 3 ~ 6 and 7 which face the rail par$s are shaped to closely conform to ~he exterior surface of the rails so that the gap 12 ~ approximately the same dimension at all points S between the rail and the mold members 3, 6 and 70 Wi~h this arrangement, during the welding operation~ the r~sulting liquid slag can flow away ~n the gal?s 12 to form a layer betweerl the mold member suriEaces and the s~lrface of the rails, ~hus lû ~creening the weld agains!t oxygen and nitrogen and al~o advant~geously allowing the weld to cool slowly and thus minimize or elimlnate the creation of local 5tresse~ ~n the weld jo~ntO
.
~5 ~ he mold member~ 3, 6 and 7 may be made of pure copper since this element will not connect during wèlding with the rails. On ~he other ha~d, the oopper mold members will effec~ a good shaping of the weld and will preven~ the occurrénce of swelling or beading of th~ weld joint, ~hus minimizlng or e~en eliminating the ne¢essity o re-wor~in~ the joint after the welding is comple~edO
The exterior surfaces of the mold members 6 and 7 may have surface area enlarging forma~ions $uch as rece~ses 13 to improve heat dissipation from the mold me~ers.
~ h2 lower mold member 3 on its top side may bQ pro~ided wlth a groove or drai~ 14 or the weld bath.
~ previously noted, the lateral mold members ~ and 7 may be held toge~her by a spring clamping clip 8, the ends 15 of which engage wi~h corresponding re-cesses 16 formed i~ the exterior surfaces of the mold membe~s. .I~ will be understQod~ of courseO that the spring clip 8 may be s~ifted to clamp from below the xa~ n general, the lateral mo~d members 6 and 7 are put in place whenever khe lower mold memher 3 has ~een ~nserted under the rail and the welding searn has alr~ady been e~fected at the foo~ 2 of khe railO 5ub-æequentlyO welding materials may be ;nserted into ~he 5g:~
join~ between the rails above ~lle foG~ and ~hen the lalteral mc~ld m/~mbers 6 and 7 placed in position to assure the dçsired shaping of t~e welding seam.
Referring now to Figures S and 5, khere is disclosed a laterai mold member 21 which has a metallic bc)dy, pre~erably of copper. The mold member 21 has in ilts surface which faces the rail a grooved recess 22 extending from the upper edge to the lower s~dge of the member~ Into the recess 22 an inse.rt 23 of fixe resis-tan~ material such as refractory or ceramic rnaterial i~ disposedO A holdlng pe~ 24 may be provided in the a:ecess 24 I:o cos~erate with a bore in the inser~ 23 l~o hold the inser~ in place7 The insert 23 its~1~ is providea with a longitudinal groove extending from the top to the ~ottom edge of the mold member 2lo Referring now to the em~odiment of Figures 7 and 8, thexe is illustrated ano~her modifi-.ation of à ~old member ~1 which i5 formed as a lower mold member corr~sponding ~o the mold member 3 of Figure 1. Mold memb~r 219 is provided with a recess 22' extending from ona ed~e ~o an opposite edge thereof. As with the embr,~:lments of Figures 5 and 6, the recess 22 ' is pro vided with holding pegs 241 which cooperate with bores ` ~ormed in ~he rear sur~ace of an insert 23 9 ~o hold the ~nsert 23 t in the groove or recess ~2'. Preferably, the -8~
D ~
ins~rt 23~ is made of a ceramic or other ~ireproof or ~re~resistant material and is removably held in the mold member ~y the holding peg~ 24'1 Thus, ~he inserts 23 and ~3~ are easily remova~le so that they can be xeplaced when worn out by ~ew inserts.
Spacing means similar to those shown at 11 in Figures 1 and 2 may also be provided in the mold members 21 and 21' illustra~ed in Figures 5-8. Ordinarily, however0 the provision of the longitudinal grooves 2S
10and ~5 in the inserts 23 and 23' will eliminate the need for such spaclng meansO Also, ~h~ mold members o~ Figures S~8 may also be held in place by a spring clip in a manner analagous to that illustrated in ~gux~ lo lSWhile ~he ~or going has been a description of th~ p~eferxed embodiments of the invention0 it will ~e obvious t~ those skilled in ~his art ~hat various modi~ications may be made therein without departing from the spirit ~nd scope of the present ~nvention a~ deined in he appended claims.
Claims (13)
1. Apparatus for use in the welding together of railroad rails, superstructure profiles, to thereby extend the same lengthwise using bar or wire electrodes characterized by pro-filed mold members substantially covering up the joint between the parts to be welded together, said mold members comprising copper material and having an elongated surface running in parallel to and adjacent to the like ones of the parts that are to be welded and said mold members including means to prevent fusing of the copper material during welding and thus affecting the purity of the welding seam, influencing the same disadvan-tageously.
2. Apparatus for the welding together of railroad rails, superstructure profiles, to thereby extend the same lengthwise, using bar or wire electrodes, characterized by profiled mold-members substantially covering up the joint between the parts to be welded together, said members being made of copper and having an elongated surface running in parallel to and adjacent to like ones of the parts that are to he welded, spacers located intermediate said mem-bers and parts for maintaining said members and parts in selected spaced relation, said mold-members further including spaced transverse bores for accommodating said spacers having pro truding heads or the like and which act respectively as a locater for the parts that are to be welded together.
3. Apparatus as defined in claim 2 wherein the mold-members include recesses enlarging the surface on the side facing away from the weld.
4. Apparatus as defined in claim 2 wherein a pair of mold-members cover up the weld from two sides thereof, said members being secured in place by means of a spring clip on the parts that are to be welded.
5. Apparatus as defined in claim 3 wherein a pair of mold-members cover up the weld from two sides thereof, said members being secured in place by means of a spring clip on the parts that are to be welded.
6. Apparatus as defined in claims 4 or 5 wherein each mold-member of one pair of mold-members includes a recess for accommodating said spring clip.
7. Apparatus as defined in claims 4 or 5 wherein, in the case of welding railway rails, the elongated side surfaces of each mold-member of a pair of mold-members facing the weld joint, have a surface extending lengthwise of and in parallel with the rail web and one extending lengthwise of and in parallel with the rail head.
8. Apparatus for the welding of railroad rails, super-structure profiles to thereby extend the same lengthwise using bar or wire electrodes, characterized by profiled mold-members sub-stantially covering up the joint between the parts to be welded, to-gether, said members having an elongated surface running in para-llel to and adjacent to like ones of the parts that are to be weld-ed, which surface includes a recess in which an insert of fireproof material is disposed, said mold-members comprise copper material except the insert which is of ceramic material, and wherein at least one holding peg is disposed on the bottom of the recess for use in securing said insert.
9. Apparatus as defined in claim 8 wherein said insert is removably disposed within said recess.
10. Apparatus as defined in claim 8 wherein the insert is disposed substantially in the center of the mold-member and extends continuously between opposite edges of the mold-member.
11. Apparatus as defined in claim 9 wherein the insert is disposed substantially in the center of the mold-member and extends continuously between opposite edges of the mold-member.
12. Apparatus as defined in claims 8,9 or 10 wherein said insert has a longitudinal groove therein.
13. Apparatus as defined in claim 11 wherein said insert has a longitudinal groove therein.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG7619309.4 | 1976-06-18 | ||
| DE7619309U DE7619309U1 (en) | 1976-06-18 | 1976-06-18 | DEVICE FOR WELDING RAILWAY RAILS, UPPER STRUCTURE PROFILES O.DGL. |
| AU19201/76A AU507600B2 (en) | 1976-06-18 | 1976-11-01 | Welding of rails |
| AU19201/76 | 1976-11-01 | ||
| DEG7706807.6 | 1977-03-05 | ||
| DE7706807U DE7706807U1 (en) | 1977-03-05 | 1977-03-05 | FORMING JAW FOR WELDING RAILWAY RAILS, UPPER STRUCTURE PROFILES OR DGL. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1094650A true CA1094650A (en) | 1981-01-27 |
Family
ID=27152497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA277,392A Expired CA1094650A (en) | 1976-06-18 | 1977-04-28 | Device for the welding of railway rails, steel sections or the like |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS537555A (en) |
| BR (1) | BR7703965A (en) |
| CA (1) | CA1094650A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143489A (en) * | 1974-10-08 | 1976-04-14 | Nippon Kayaku Kk | Sosuiseisenino senshokuho |
-
1977
- 1977-04-28 CA CA277,392A patent/CA1094650A/en not_active Expired
- 1977-06-15 JP JP7093677A patent/JPS537555A/en active Pending
- 1977-06-17 BR BR7703965A patent/BR7703965A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7703965A (en) | 1978-07-04 |
| JPS537555A (en) | 1978-01-24 |
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