US3358406A - Rail grinder - Google Patents

Rail grinder Download PDF

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Publication number
US3358406A
US3358406A US495965A US49596565A US3358406A US 3358406 A US3358406 A US 3358406A US 495965 A US495965 A US 495965A US 49596565 A US49596565 A US 49596565A US 3358406 A US3358406 A US 3358406A
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United States
Prior art keywords
grinder
rail
grinding
heads
vehicle
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Expired - Lifetime
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US495965A
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English (en)
Inventor
Jr Frank Speno
Panetti Romolo
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Speno International SA
Frank Speno Railroad Ballast Cleaning Co Inc
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Speno International SA
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Priority to US495965A priority Critical patent/US3358406A/en
Priority to GB44499/66A priority patent/GB1137640A/en
Priority to DE19661534037 priority patent/DE1534037B1/de
Priority to CH1489066A priority patent/CH444208A/de
Application granted granted Critical
Publication of US3358406A publication Critical patent/US3358406A/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

Definitions

  • also means are available for effecting appropriate adjustment of the individual constant pressure counterbalancing means, and thus of the operating pressures of the respective grinder heads, thus making it possible to achieve equal loading of their several motors so that the grinding wheels of the respective grinder heads will remove metal at approximately equal rates from the rails, despite variations in materials, coefiicients of friction, hardness, etc. of the different grinding wheels in a given gang.
  • the individual grinding wheels of such a rail grinder will tend to follow the contours of the waves so as to grind both the peaks and the hollows or depressions of the rail, rather than merely to eliminate the peaks.
  • variable rate counterbalancing means have been provided, in combination with the constant pressure counterbalancing means, for so interconnecting the grinder heads of each gang as to discontinue the grinding action of any individual grinder head as it seeks a level below that of the other grinder heads of its gang in attempting to follow the contour of a depressed portion of the rail.
  • the grinding and deepening of depressed areas will be substantially discontinued, while the grinding action will be concentrated on raised areas.
  • the constant pressure counterbalancing means for the respective grinder heads may, if desired, be individually adjustable to cause the different grinder wheels to engage the rail at such differing pressures as may be necessary in order to secure a substantially equalized loading of their respective grinder motors throughout the operative engagement of such grinding wheels with the raised portions of the rail, while the variable rate counterbalancing means will nevertheless cooperate with said constant pressure means in discontinuing the grinding action of a given grinding Wheel in passing over a depression which it is incapable of spanning.
  • the invention makes novel provision for both angular and lateral adjustment of the respective grinder heads, to permit their use in grinding and truing angularly disposed faces of the rails.
  • the invention in its preferred form contemplates a novel assembly of the several components to provide means for vertically floatingly supporting and urging the common support for the several grinder heads of the gang to a predetermined vertical position of balance, while also permitting both angular and lateral adjustment of same and resiliently suspending the several grinder heads therefrom.
  • FIGURE 1 is a fragmentary side elevation of a vehicle equipped with the rail grinding equipment of the invention for grinding of the rails as the vehicle travels alongthem;
  • FIGURE 2 is a vertical cross section on the line 2-2 of FIGURE 1 showing the manner in which the gang of grinder heads is mounted on the vehicle for operation on one of the rails of the railroad track;
  • FIGURE 3 is a section on the line 33 of FIGURE 1, showing side elevational view of the floating support and associated upper end portion of the spindles or shanks by means of which the several grinder heads of a given group or gang are connected thereto;
  • FIGURE 4 is a sectional view on the line 4-4 of FIGURE 1 showing certain details of the floating bar support for the grinder heads;
  • FIGURE 5 is a section on the line 5-5 of FIGURE 4.
  • FIGURE 6 is a fragmentary perspective view of one of the grinder heads and its supporting cradle structure.
  • the grinding mechanism of the invention is illustrated as being carried by a car or vehicle V having flanged wheels 10 of conventional structure, .by means of which it is supported and guided for movement along the parallel rails R of a conventional railroad track to grind the tread surfaces of the rails and, if desired, their side faces, for the purpose of removing therefrom various irregularities normally created by wear and, generally speaking, to substantially regenerate the 3 tread surface and/or sides faces to true rectilinear configuration.
  • the rigid frame of the vehicle comprises upper and lower pairs of rigid beams 1212 and 13-13.
  • the lower beams 13 have pairsof horizontal and relatively parallel rigid cross-bars 15 secured there-beneath, said cross-bars projecting laterally outwardly of the grinder heads G,
  • each cradle 16 extends longitudinally between its parallel supports or guides 15 15, and is provided with longitudinally and horizontally aligned trunnions 22, for operative reception in bearings 23 carried by the respective slides 24.
  • the slides 24 are disposed for lateral adjustment on their respective supports 15, being releasably secured in their desired position of adjustment by means such as the set screw 25, as shown in FIGURE 6.
  • each such cradle 16 comprises a rigid open frame through the opening of which is disposed the lower end of its associated grinder head G.
  • Each of the grinder heads G includes an electric driving motor 26 supported for vertical movement on its cradle 16 by cylinder and piston unit 29 and 30 and having a depending vertical output shaft 27 to which is afiixed a grinding disc or wheel 28 having an axially-presented lower grinding face adapted for operative engagement with the upper or tread surface of the rail.
  • the grinding faces of the several grinding wheels in each gang are normally positioned for operation in a common horizontal plane by the means hereinafter described.
  • Each of the verticallymovable grinder heads G is of generally conventional construction and arrangement such as is more fully illustrated and described in the said prior patent of Speno and Shay No. 2,779,141 and also, as taught in the said patent is equipped with suitable supporting and counterbalancing means, exemplified by a pair of fluid pressure actuated and vertically-extensible piston and cylinder units 29 and 30 respectively.
  • Each of the grinder heads G normally has a portion only of its weight supported from the cradle 16 by a constant rate counterbalancing means or mechanism, here exemplified by a pair of piston rods 29 rigidly affixed to and projecting upwardly from the cradle, with the pistons (not shown) at their upper ends slidably received respectively in cylinders 30 afiixed to opposite sides of the motor 26.
  • a constant rate counterbalancing means or mechanism here exemplified by a pair of piston rods 29 rigidly affixed to and projecting upwardly from the cradle, with the pistons (not shown) at their upper ends slidably received respectively in cylinders 30 afiixed to opposite sides of the motor 26.
  • the weight of the grinder head is partially counterbalanced.
  • the interconnected piston rods 29 and cylinders 30 serve to accurately position and guide the grinder heads on their respective cradles, for floating movement normally to the axis of angular adjustment for each grinder head, as defined by the trunnions 22 of its associated cradle 16.
  • the counterbalancing units 29 and 30 of each grinder head are supplied with actuating fluid at a predetermined constant pressure, such as will enable them to support a portion only of the weight of the grinder head 26.
  • the several grinder heads G of each gang may have their respective counterbalancing means 29 and 30 individually adjusted in a manner to uniformly load their respective motors despite differences in the coeflicients of friction and other characteristics of the respective grinding wheels, so as to approach a maximum grinding efiiciency of each wheel during its operative grinding engagement with a rail R.
  • the several grinder heads may be vertically raised and disengaged from the rails whenever desired by simply supplying their respective counterbalancing cylinders 29 and 30 with fluid at sufiicient pressures to achieve this end.
  • the motor 26 and its shaft 27 will normally be positioned for rotation about a vertical axis. Accordingly, the cradle 16 will be adjusted and maintained in an angular position in which its piston rods 29 extend vertically, the piston rods 29 being parallel to the motor shaft 27.
  • the cradle 16 and grinder head G may be readily adjusted to the desired angle about the longitudinal axis defined by trunnions 22.
  • the cradle has rigidly secured thereto a radial adjusting arm 31 adapted for adjustable connection, as by the bolt 32, to a quadrant plate 33 rigidly carried by one of the slides 24.
  • the present invention provides a means for discontinuing the grinding pressure or action of each grinding wheel as an incident to its movement below a position of horizontal alignment with the other grinding wheels of its gang. Since the various waves or peaks of the irregularities on the rails generally are irregularly spaced, the locations of the depressions between Wave peaks will rarely coincide with the spacing between the respective grinding wheels 28 of a given gang. Normally, therefore, at the time a given grinding wheel is passing over a depression or hollow, the other grinding wheels of its associated gang will be positioned at higher levels and, by thus preventing effective operation of the first grinding wheel below their common level, the grinding action is concentrated on the raised portions of the rail.
  • variable rate counterbalancing means associated with the respective grinder heads, to supplement and coact with the constant rate counterbalancing means exemplified by the cylinders 30 and their associated mechanism, in fioatingly supporting the grinder heads.
  • variable rate counterbalancing means is exemplified by the springs 34 by means of which the respective grinder heads G are resiliently individually suspended from the vehicle frame, prefer- .ably by means of a rigid horizontal equalizing bar 35 carried by the vehicle frame.
  • the bar terminates in aligned stub shafts 35a by means of which it is rotatably supported in rigid brackets B, each generally fixed to and projecting outwardly from the vehicle frame, in longitudinally spaced relation.
  • the bar 35 is provided with a series of vertical openings 36a therethrough for slidable reception of the rigid suspension shanks or pintles 36 of the respective motors, afiixed to the motor housings.
  • Each of the springs 34 is disposed about such a pintle 36 under compression between the equalizing bar 35 and a radial projection, defined by the washer 37 and the nuts 38 threaded onto the upper end of the rod.
  • the nuts 38 normally will be adjusted on their respective pintles to cause the respective grinder heads all to be jointly supported at a common level by the combined actions of their cylinders 36 and springs 3 (when disengaged from the track) even though the fluid counterbalancing cylinders 30 are supplied with fluids at difierent pressures, in accordance with the teachings of said Speno and Shay patent.
  • each grinder head and its cradle being positioned as shown in full lines in FIGURE 3.
  • the cradles and grinder heads may be tilted about the axis defined by their cradle trunnions 22, as in broken lines in FIG. 3.
  • the stub shafts 35a at its opposite ends are journalled in bearings 39 carried by the cross heads 40 for vertical adjustment in the laterally adjustable slides 41 respectively.
  • Slides 41 comprise rigid rectangular frames-defining opposed vertical guide. channels 42 for sliding reception of the end projection 43 of the cross head.
  • the opposite ends of the bar 35 are floatingly supported between pairs of opposing upper and lower coil springs 44 and 45 positioned around vertical guide rods 46, under compression between the cross head 40 and the upper and lower horizontal members of the rectangular slide frames 41.
  • the several grinding heads G of each gang are all operatively connected (as by their respective rods or pintles 36) to the horizontal rigid floating equalizing bar or lever 35 for relative vertical movement in such a manner that the several grinder heads are permitted substantially unrestricted upward movement or displacement with respect to said bar for a substantial distance, but are all equally limited or restricted in their downward movement in a manner such that the lower operative faces of their respective grinding wheels 28 may not drop below a given horizontal plane parallel to the bar 35.
  • the bar 35 is necessarily heavy in order to withstand the bending stresses imposed on'it by the several heavy grinder heads. If supported solely by the joint action of the grinder heads, and pivotally connected thereto, in the manner of any usual floating lever, it would, of course, suflice to maintain the grinding heads in alignment. However, its weight would be unequally distributed among them in constantly varying proportions depending upon the inequalities of the rail surface acting upon the particular grinding wheels. This, of course, would make impossible the desired maintenance of the several grinding wheels in operative engagement with the rail at different but preselected grinding pressures. It is for this reason, among others that the bar is supported for floating movement independently of the grinder heads G.
  • the opposing springs 44 and 45 in the present embodiment serve as a cushioning or damping means for reducing the transmission of vibration between the grinder heads and the vehicle frame. Also, this type of floating suspension for the bar 35, minimizes the effect upon the bar and the grinder heads of unevenness in the rails R encountered by the vehicle wheels.
  • the railway car or vehicle here illustrated by way of example as a suitable means for supporting the grinding mechanism may be coupled to other grinding cars or vehicles and propelled by a separate small locomotive or other source of traction. Or alternatively the vehicle may be of the self-propelled type as described in the aforesaid Speno et al. patent. It will be understood, of course, that as in the aforesaid patent, the grinding Vehicle or associated vehicles will transport means for providing adequate electrical power and pressurized fluid as well as control means for the respective grinder heads and their counterbalancing mechanisms, all as described in considerable detail in the said patent, the disclosure of which is incorporated herein by reference as fully and completely as though its drawings and description were copied verbatim.
  • the counterbalancing fluid pressure means 29 and 30 of the respective grinder heads will all be actuated by the admission thereto of fluid at a suflicient pressure to fully raise the respective grinder heads so as to disengage them all completely from the track, this being readily permitted by the freely upwardly slidable disposition of their respective spindles 40 for substantial distances through their associated equalizing bars 35.
  • the grinder motors will, of course, be de-energized, since at this time the several grinder heads will be completely inoperative.
  • each gang Upon reaching the desired location at which the grinding operation is to commence, the several grinder heads of each gang will be lowered by reduction of the pressures in their counterbalancing means 29 and 30 to predetermined pressures sufiicient to counterbalance a portion only of the weight of each grinder head during the operative engagement of the latter with the rail.
  • these counterbalancing pressures supplied to the cylinders 30 of each grinder head will be individually adjusted or regulated by the means and in the manner disclosed in the aforesaid Speno et a1. patent so that the operating pressure of each grinding wheel when operating at maximum capacity on the rail will be such as to result in fully loading its grinding motor, regardless of differences in the characteristics of the respective grinding wheels 28 such as might require variations in their relative operative pressures to accomplish this.
  • the spring means 34 for the respective grinding heads and their associated stops or washers are so arranged that as the grinder heads are positioned in operative grinding engagement at their maximum pressures with a level rail surface, the said springs 34 will normally be substantially completely relieved of the weight of the respective grinder heads.
  • the vehicle With the grinder heads thus positioned and their motors energized to rapidly rotate the respective grinding wheels 28, the vehicle is caused to move slowly along the rails 'a true rectilinear rail surface in the direction of the rail length.
  • a rail grinder comprising: a vehicle adapted for lengthwise movement along a rail; a gang of grinder heads carried by said vehicle for vertical movement relative to the vehicle and to each other; said grinder heads respectively including grinding wheels normally posi tioned for operation in a substantially common horizontal plane and electric motors for driving the respective grinding wheels; constant rate counterbalancing means and variable rate counterbalancing means separately interconnected between each said grinder head and the vehicle for jointly applying a lifting force to said grinder head normally less than the weight of the grinder head, whereby to regulate the pressure of the grinding wheels against the rails; said variable rate counterbalancing means urging the respective grinder upwardly toward positions in which their grinding wheels are in relative horzontal alignment and opposing the downward movement of each grinding wheel below a position of horizontal alignment with the other said grinding wheels.
  • variable rate counterbalancing means comprises a rigid horizontal member carried by the vehicle and springs respectively transmitting resilient lifting forces from said member to the respective grinder heads, said springs 'being adjusted to urge said grinder heads toward positions of relative alignment of their grinding wheels.
  • variable rate counterbalancing means comprises a rigid suspension bar carried by said vehicle, and resilient means interconnecting said bar to each of the said grinder heads to provide increasing resistance to downward movement of each said grinder head below a predetermined level.
  • a rail grinder as defined in claim 3 including means for floatiugly supporting the said rigid suspension bar from the vehicle.
  • a rail grinder comprising: a vehicle adapted for lengthwise movement along a rail; a gang of grinder heads carried by said vehicle for vertical movement relative to the vehicle and to each other; said grinder heads respectively including grinding wheels normally positioned for operation in a substantially common horizontal plane and electric motors for driving the respective grinding wheels; constant rate counterbalancing means for supporting a predetermined portion only of the weight of each said grinder head, and variable rate counterbalancing means for opposing with progressively increasing force the downward movement of any of said grinding wheels below a position of horizontal alignment with the other said grinding wheels.
  • variable rate counterbalancing means comprises a rigid horizontal member carried by the vehicle and spring means respectively transmitting resilient lifting forces from said member to the respective grinder heads generally in proportion to the relative distances of their respective grinding wheels below a given horizontal plane, said spring means being adjusted to urge said grinder heads toward positions of relative alignment of their grinding wheels.
  • variable rate counterbalancing means comprises a rigid equalizing bar carried by said vehicle and resilient means interconnecting said bar to each of the said grinder heads to provide increasing resistance to continued downward movement of each said grinder head below a predetermined level, said resilient means normally acted to urge said grinder heads toward relative vertical positions in which their respective grinding wheels are horizontally aligned.
  • a rail grinder comprising a vehicle adapted for lengthwise movement along a rail; a plurality of grinder heads carried *by said vehicle for vertical movement relative to the vehicle and to each other; said grinder heads respectively including grinding wheels and electric motors for driving the respective grinding wheels; a pair of longitudinally spaced brackets 'aflixed to the said vehicle; slides guided for vertical movement in the respective brackets, a rigid equalizing bar extending horizontally between and supported by the respective slides; opposing spring means in each bracket acting vertically and in opposition to each other against the slide in said bracket and thereby affording a resilient floating support for the bar; and resilient means interconnecting the said bar and the respective grinder heads for limiting the downward move ment of each grinder head below a level in which the grinding wheels respectively are uniformly spaced below the bar.
  • a rail grinder comprising a vehicle adapted .for lengthwise movement along a rail; a plurality of grinder heads'carried by said vehicle for vertical movement relative to the vehicle and to each other; said grinder heads respectively including grinding wheels and electric motors for driving the respective grinding wheels; .a horizontal rigid equalizing bar supported from said vehicle 11 for resilient vertical floating movement, and resilient connections between the said bar and the respective grinder 'heads for limiting the downward movement of each grinder head below a level in which the grinding wheels respectively are uniformly spaced belowthe bar.
  • a rail grinder comprising a vehicle adapted for lengthwise movement along a rail; a plurality of grinder heads carried by said vehicle for vertical movement relation to the vehicle and to eachother; said grinder heads respectively including grinding wheels normally positioned for operation in a common horizontal plane; and electric motors for driving the respective grinding wheels; constant rate counterbalancing means.
  • each said grinder head interconnected between each said grinder head and the vehicle for applying a predetermined constant lifting force to each said grinder head normally less than the Weight of the grinder head, whereby to regulate the pressure of its grinding Wheel against a rail; a pair of longitudinally spaced brackets afiixed to' the said vehicle; slides guided for vertical movement in the respective brackets, a rigid equalizing bar extending 5 horizontally between and supported by the respective slides; opposing springs means in each bracket acting vertically and in opposition to each other against the slide in said bracket and thereby afiording a resilient floating support for the bar; and resilient connections between the said bar and each of the respective grinder heads for supplementing the action of said counterbalancing means 10 in applying a lifting force to each grinder head, said resilient connections normally urging the said grinder heads upwardly to a level in which the grinding wheels respectively are uniformly spaced from the bar.
US495965A 1965-10-14 1965-10-14 Rail grinder Expired - Lifetime US3358406A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US495965A US3358406A (en) 1965-10-14 1965-10-14 Rail grinder
GB44499/66A GB1137640A (en) 1965-10-14 1966-10-05 Rail grinder
DE19661534037 DE1534037B1 (de) 1965-10-14 1966-10-13 Schienenschleifvorrichtung
CH1489066A CH444208A (de) 1965-10-14 1966-10-14 Schienenschleifmaschine

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US495965A US3358406A (en) 1965-10-14 1965-10-14 Rail grinder

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US495965A Expired - Lifetime US3358406A (en) 1965-10-14 1965-10-14 Rail grinder

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CH (1) CH444208A (de)
DE (1) DE1534037B1 (de)
GB (1) GB1137640A (de)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509667A (en) * 1966-11-21 1970-05-05 Chemetron Corp Method of grinding welded rail
US3526997A (en) * 1967-08-08 1970-09-08 Speno Intern Sa Apparatus for deburring the rails of railway track
US3707808A (en) * 1970-10-05 1973-01-02 Mannix Construction Inc Rail grinder
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails
US3883323A (en) * 1974-09-06 1975-05-13 Lush E Cooley Welded railroad rail grinding apparatus
US3888052A (en) * 1972-06-08 1975-06-10 Speno International Relating to methods for grinding rails
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails
US4074468A (en) * 1975-01-13 1978-02-21 Romolo Panetti Apparatus for the continuous on-track truing of railway rails
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
US4295764A (en) * 1977-12-30 1981-10-20 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machine for removing surface irregularities from rail heads
US4492059A (en) * 1980-07-23 1985-01-08 Speno International S.A. Grinding device for the reprofiling of a rail of a railway track
JPS603302A (ja) * 1983-05-17 1985-01-09 ル・フイル・ドウ−グストウ・シヨイヒツエル・ソシエテ・アノニム レ−ル頭部の削成装置
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4584798A (en) * 1984-03-29 1986-04-29 Speno Rail Services Co. Automated railway track maintenance system
US4622781A (en) * 1985-02-19 1986-11-18 Loram Maintenance Of Way, Inc. Rail grinding machine
US4751794A (en) * 1987-01-02 1988-06-21 Holland Company In-track rail base grinding apparatus
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
WO1989003455A1 (en) * 1987-10-16 1989-04-20 Loram Maintenance Of Way, Inc. Rail grinding machine
US4843765A (en) * 1980-01-09 1989-07-04 Romolo Panetti Railway track maintenance machine for truing the head of railway track rails
US4862647A (en) * 1987-08-31 1989-09-05 Loram Maintenance Of Way, Inc. Rail grinding machine
EP0576891A1 (de) * 1992-06-23 1994-01-05 Elektro-Thermit GmbH Schienenschleifmaschine
US20100233942A1 (en) * 2009-03-12 2010-09-16 A. Zahner Company Apparatus for applying a finish to a metal surface and method of apparatus construction
CN106985030A (zh) * 2017-05-11 2017-07-28 浙江风雷信息科技有限公司 一种智能停车设备钢轨维护装置
CN107012751A (zh) * 2017-05-11 2017-08-04 浙江风雷信息科技有限公司 一种智能停车设备用高安全性钢轨维护装置
CN107130481A (zh) * 2017-05-05 2017-09-05 浙江风雷信息科技有限公司 一种用于智能停车设备的钢轨维护装置
CN109056435A (zh) * 2018-09-21 2018-12-21 马小艳 一种用于高铁、动车、地铁钢轨维护的自动打磨系统
CN111501443A (zh) * 2020-03-19 2020-08-07 湖南大学 一种钢轨打磨装置
CN113021095A (zh) * 2021-02-23 2021-06-25 闵倩如 一种石墨烯材料加工机
US11668055B2 (en) * 2018-08-27 2023-06-06 Harsco Technologies LLC Rail milling vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1239247B (it) * 1990-05-08 1993-09-28 Rotafer Macchina rettificatrice tangenziale, particolarmente per rotaie ferroviarie
IT1291080B1 (it) * 1996-11-12 1998-12-14 Mecno Srl Macchina molatrice tangenziale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741883A (en) * 1954-11-19 1956-04-17 Scheuchzer Alfred Apparatus for rectifying the rails of railroad tracks
US2779141A (en) * 1955-11-15 1957-01-29 Speno International Railgrinder
US2787096A (en) * 1956-05-11 1957-04-02 Harry H Riddels Concrete surfacing machine

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Publication number Priority date Publication date Assignee Title
US2197729A (en) * 1938-01-20 1940-04-16 Pennsylvania Railroad Co Track rail grinding apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741883A (en) * 1954-11-19 1956-04-17 Scheuchzer Alfred Apparatus for rectifying the rails of railroad tracks
US2779141A (en) * 1955-11-15 1957-01-29 Speno International Railgrinder
US2787096A (en) * 1956-05-11 1957-04-02 Harry H Riddels Concrete surfacing machine

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509667A (en) * 1966-11-21 1970-05-05 Chemetron Corp Method of grinding welded rail
US3526997A (en) * 1967-08-08 1970-09-08 Speno Intern Sa Apparatus for deburring the rails of railway track
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails
US3707808A (en) * 1970-10-05 1973-01-02 Mannix Construction Inc Rail grinder
US3888052A (en) * 1972-06-08 1975-06-10 Speno International Relating to methods for grinding rails
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails
US3883323A (en) * 1974-09-06 1975-05-13 Lush E Cooley Welded railroad rail grinding apparatus
US4074468A (en) * 1975-01-13 1978-02-21 Romolo Panetti Apparatus for the continuous on-track truing of railway rails
US4295764A (en) * 1977-12-30 1981-10-20 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machine for removing surface irregularities from rail heads
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
FR2446891A1 (fr) * 1979-01-18 1980-08-14 Speno Rail Serv Appareil de meulage de rails
US4878318A (en) * 1980-01-09 1989-11-07 Speno International S.A. Railway track maintenance machine for the rectification of the head of the rail
US4843765A (en) * 1980-01-09 1989-07-04 Romolo Panetti Railway track maintenance machine for truing the head of railway track rails
US4492059A (en) * 1980-07-23 1985-01-08 Speno International S.A. Grinding device for the reprofiling of a rail of a railway track
JPS603302A (ja) * 1983-05-17 1985-01-09 ル・フイル・ドウ−グストウ・シヨイヒツエル・ソシエテ・アノニム レ−ル頭部の削成装置
US4621460A (en) * 1983-05-17 1986-11-11 Les Fils D'auguste Scheuchzer S.A. Machine for reshaping rail heads
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4584798A (en) * 1984-03-29 1986-04-29 Speno Rail Services Co. Automated railway track maintenance system
US4622781A (en) * 1985-02-19 1986-11-18 Loram Maintenance Of Way, Inc. Rail grinding machine
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
US4751794A (en) * 1987-01-02 1988-06-21 Holland Company In-track rail base grinding apparatus
US4862647A (en) * 1987-08-31 1989-09-05 Loram Maintenance Of Way, Inc. Rail grinding machine
WO1989003455A1 (en) * 1987-10-16 1989-04-20 Loram Maintenance Of Way, Inc. Rail grinding machine
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CN107130481A (zh) * 2017-05-05 2017-09-05 浙江风雷信息科技有限公司 一种用于智能停车设备的钢轨维护装置
CN107130481B (zh) * 2017-05-05 2018-09-18 祖全达 一种用于智能停车设备的钢轨维护装置
CN107012751A (zh) * 2017-05-11 2017-08-04 浙江风雷信息科技有限公司 一种智能停车设备用高安全性钢轨维护装置
CN107012751B (zh) * 2017-05-11 2018-09-04 骆泽锋 一种智能停车设备用高安全性钢轨维护装置
CN106985030A (zh) * 2017-05-11 2017-07-28 浙江风雷信息科技有限公司 一种智能停车设备钢轨维护装置
CN106985030B (zh) * 2017-05-11 2019-01-11 江苏小七智能科技有限公司 一种智能停车设备钢轨维护装置
US11668055B2 (en) * 2018-08-27 2023-06-06 Harsco Technologies LLC Rail milling vehicle
CN109056435A (zh) * 2018-09-21 2018-12-21 马小艳 一种用于高铁、动车、地铁钢轨维护的自动打磨系统
CN111501443A (zh) * 2020-03-19 2020-08-07 湖南大学 一种钢轨打磨装置
CN113021095A (zh) * 2021-02-23 2021-06-25 闵倩如 一种石墨烯材料加工机

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GB1137640A (en) 1968-12-27
DE1534037B1 (de) 1970-06-04
CH444208A (de) 1967-09-30

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