US3426697A - Switch tampers - Google Patents

Switch tampers Download PDF

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Publication number
US3426697A
US3426697A US611281A US3426697DA US3426697A US 3426697 A US3426697 A US 3426697A US 611281 A US611281 A US 611281A US 3426697D A US3426697D A US 3426697DA US 3426697 A US3426697 A US 3426697A
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United States
Prior art keywords
tamping
frame
vehicle
chassis
track
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Expired - Lifetime
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US611281A
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English (en)
Inventor
John K Stewart
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Ivacan Inc
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Ivacan Inc
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Publication date
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Publication of US3426697A publication Critical patent/US3426697A/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
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • SWITCH TAMPERS Filed Jan. 24, 1967 sheet 2 of 2 United States Patent O 3,426,697 SWITCH TAMPERS John K. Stewart, Columbia, S.C., assignor to Canada Iron Foundries Limited, Montreal, Quebec, Canada Filed Jan. 24, 1967, Ser. No. 611,281 U.S. Cl. 104--12 5 Claims Int. Cl.
  • This invention relates to railroad ballast tamping machines and, particularly, to machines for tamping the ballast at or near railway track switches.
  • Hydraulic means were provided lfor moving the tamping head along the beam transversely of the track so that the tamping head could occupy an inlinite number of transverse positions relative to the vehicle, whereby to allow for the variation in rail spacing in the switch.
  • Such a solution of the switch ta-mping problem has only been partially successful since, although the transverse movement of the tamping head relative to the vehicle has been, in the main, suicient to accommodate -for the variation in the spacing of the rails of the track at the switch, the prior proposals failed to take into account the changes in contour of the track, as well as the changes of spacing at and near the switches, and so were limited in their application.
  • the tamping tools of the head Were mounted such that they could individually be moved out of the way to permit a single tool, or even a pair of opposed tools of the head, to be operable at one time.
  • this did not result in an eicient tamping operation because the ballast in the vicinity of the tamping tool was able to ow away from the tool.
  • a railway track tamping device comprising a vehicle mounted on rail engaging wheels, at least one ballast tamping head mounted on the vehicle, means for moving the tamping head transversely of the track and means for pivoting the tamping head about an axis substantially vertical to the track.
  • the tamping head is mounted on a swingable frame which is pivotally mounted on a substantially vertical axis on the vehicle chassis, means Abeing providedv for moving the tamping head transversely of the track on the frame and for swinging the frame in a substantially horizontal plane on the chassis.
  • the device according to the present invention can move the tamping head to an infinite number of positions relative to the chassis so that the tamping head may follow the curve of the track and be positioned so as to penetrate into the ballast in the small existing spaces between the rails in the switch.
  • the frame includes a transversely extending guide element overhanging the front end of the veh-icle and two tamping heads mounted for vertical reciprocation, one on each of a pair of sub frames, both sub frames being mounted for transverse movement on the guide element.
  • FIGURE 1 is a diagrammatic plan View of a vehicle having one form of swingable frame with tamping heads mounted for transverse translation thereon;
  • FIGURE 2 is a diagrammatic side View of the device -aocording to FIGURE l;
  • FIGURE 3 is a diagrammatic front view of an alternative arrangement
  • FIGURE 4 is a part plan view of the device of FIGURE 3.
  • FIGURE 5 is a partial plan view of a second alternative arrangement.
  • FIGURES 1 and 2 there is shown one manner of manner of putting the present invention into effect.
  • the vehicle has a chassis 10 mounted on a front pair 12 and a rear pair 14 of rail engaging wheels. Pivotally mounted for swinging movement in a horizontal plane about a substantially vertical axis 16, provided by a pivot head 17, is a frame 20.
  • the frame 20 carries at its forward end an overhanging structure 22.
  • the structure 22 supports a transversely extending guide element 24 in the form of an I-section beam.
  • Sub frames 26 are arranged on mountings 27 for transverse movement to and fro along the guide element 24.
  • Any suitable means for example, hydraulic piston and cylinder arrangements 30 (see FIGURE 3), may be provided for moving the sub frames 26 either together or independently of each other on the guide element 24.
  • each tamping head 35 comprises a pair of tamping units 36 which are universally mounted on a sliding frame (not shown) on the sub frame 26.
  • the tamping heads 35 are mounted for up and down reciprocation into the ballast by means of a hydraulic piston and cylinder arrangement diagrammatically shown at 39.
  • the heads 35 are provided with squeeze cylinders (not shown) to urge each unit 36 of each head 35 towards and away from its other unit 36 beneath the tie when the tamping forks 40 are in the ballast so as to consolidate the ballast beneath a tie.
  • squeeze cylinders not shown
  • bracing elements 45 are provided which at their inner ends, by means of rollers 46, engage in transversely extending H-section member 50 which extends parallel to the element 24 across the vehicle.
  • the member 50 may have hinged outer sections 52 which can be folded back to provide clearance for track travel of the vehicle.
  • FIGURE 1 there is diagrammatically shown a hydraulic piston and cylinder arrangement 55 acting between the chassis of the vehicle and the frame 20 and arranged to pivot the frame together with its guide element 24 and tamping heads 35 in an arc relative to the chassis about the pivot axis 16.
  • the driving motor 60 for the vehicle is mounted at the rear of the frame 20 and acts as a counterbalance weight for the tamping heads 35.
  • the frame member 20 comprises a transversely extending guide element, such as 24 of the foregoing described embodiment, provided with pivot mountings 61, 62 on side members 63, 64 of the chassis 10.
  • a pivot pin 65 or a pivot pin 66 may be used at one time to provide alternative pivot joints for the frame 20.
  • the frame 20 with the sub frames 26 and tamping heads 35 thereon is swung about its pivot joint under the action of hydraulic piston and cylinder 70 acting against the chassis 10.
  • the element 24 will be pivoted in a clockwise or anti-clockwise direction, as seen in FIGURE 4, depending upon which pivot joint is active.
  • two tamping heads 35 are provided each comprising a pair of tamping units 36 mounted for up and down reciprocation and for fore and aft squeezing on sub frames 26.
  • the sub frames 26 may suitably, for example, by means of rollers 72, be mounted for transverse movement on the guide element 24 under the action of lcylinders 30.
  • the frames 26 and the tamping heads 35 may be operated independnetly or together. Suitable counterbalancing and bracing (not shown) may be provided to permit the element 24 to be swung in an arc outwardly of the vehicle chassis 10.
  • the guide element 24 is centrally split to provide two half frames 24A and 24B each carrying a sub frame 26 on which a tamping head 35 is mounted for sliding movement transversely of the chassis 10.
  • pivotal mountings 61A and 62A are permanently engaged and two hydraulic piston and cylinder arrangements 70A and 70B are provided, one for each of the half frames.
  • suitable bracing and counterbalancing arrangements will be provided to permit of the outward swinging, as indicated by the arrows in FIGURE 5, of both of the half frames 24A, 24B away from the chassis 10.
  • the invention by providing for the pivoting of the tamping heads about a substantially vertical axis, in addition to providing for the transverse movement of the heads, produces a device capable of accounting for the skewing of ties in the switch and the general configuration of the track.
  • a whole tamping head can be lowered at one time into the ballast so that all of the tamping tools support each other to consolidate the ballast, and furthermore, in many track contigurations, both heads can be used side by side to provide even greater consolidation.
  • a railway track tamping device comprising a vehicle having a chassis mounted on rail engaging wheels; a frame, comprising two half frame members on the chassis, one half frame member being ⁇ pivoted about a substantially vertical axis on one side of the vehicle, and the other half frame member being pivoted about a substantially vertical axis on the other side of the vehicle; a tamping head mounted on each half frame member and means for moving each tamping head transversely of the track on its half frame member; a frame pivoting means for each half frame member acting to swing the half frame members outwardly of the vehicle about their pivot points.
  • a railway track tamping device comprising a vehicle having a chassis mounted on rail engaging wheels; a swingable frame pivotally mounted on a substantially vertical axis on the chassis; means for swinging said frame in a substantially horizontal plane on said chassis; said frame including a transversely extending guide element over-hanging the front end of the vehicle; a pair of subframes mounted on the guide element for transverse independent movement relative to each other; a tamping head mounted for vertical reciprocation on each of said subframes; said frame having a rearwardly extending portion and counterbalance means on said portion.
  • a device as claimed in claim 2 in which the frame is pivoted to the chassis centrally of the vehicle.
  • a device as claimed in claim 2 in which the frame is pivoted at one side of the vehicle.
  • a device as claimed in claim 2 in which the vehicle has a front and a rear set of rail engaging wheels supporting the chassis and in which the pivoting axis is arranged centrally of the chassis, adjacent the front set of wheels.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US611281A 1967-01-24 1967-01-24 Switch tampers Expired - Lifetime US3426697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61128167A 1967-01-24 1967-01-24

Publications (1)

Publication Number Publication Date
US3426697A true US3426697A (en) 1969-02-11

Family

ID=24448402

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Application Number Title Priority Date Filing Date
US611281A Expired - Lifetime US3426697A (en) 1967-01-24 1967-01-24 Switch tampers

Country Status (8)

Country Link
US (1) US3426697A (de)
AT (1) AT297775B (de)
BR (1) BR6896407D0 (de)
CH (1) CH487300A (de)
DE (1) DE1982450U (de)
ES (1) ES349487A1 (de)
FR (1) FR1553275A (de)
GB (1) GB1213381A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653327A (en) * 1969-03-24 1972-04-04 Matisa Materiel Ind Sa Machine for the tamping of ballast of railway tracks
US3680486A (en) * 1968-10-25 1972-08-01 Plasser Bahnbaumasch Franz Mobile track working apparatus
US3706145A (en) * 1969-10-20 1972-12-19 Rheiner Mas Fab Windhoff Ag Machine for the ballasting of railroad tracks
US5007349A (en) * 1989-03-10 1991-04-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track leveling, lining and tamping machine
US5007350A (en) * 1989-03-10 1991-04-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Universal mobile track leveling, lining and tamping machine
US5031542A (en) * 1989-04-18 1991-07-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine
US5046430A (en) * 1988-06-24 1991-09-10 Kaluzhskoe Proizvodstvennoe Obiedinenie Putevykh Mashin I Gidrapriuodok "Kalugaputmash" Tamping mechanism of tie-tamping outfit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899664A (en) * 1987-02-09 1990-02-13 Tamper Corp. Split workhead

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351246A (en) * 1918-07-15 1920-08-31 Cornelius G Hastings Tamping-machine
US1861655A (en) * 1929-10-23 1932-06-07 Brosig Robert Machine for automatically tamping underneath railway-sleepers during the finishing of the permanent way
US2107639A (en) * 1932-07-01 1938-02-08 Robert E Madison Railway ballasting machine
US2986100A (en) * 1958-02-26 1961-05-30 Kershaw Mfg Company Inc Railoway crosstie detector
US3011454A (en) * 1959-04-29 1961-12-05 Plasser Franz Ballast tamping machine
DE1173922B (de) * 1963-01-09 1964-07-16 Windhoff Rheiner Maschf Fahrbare Gleisstopfmaschine
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351246A (en) * 1918-07-15 1920-08-31 Cornelius G Hastings Tamping-machine
US1861655A (en) * 1929-10-23 1932-06-07 Brosig Robert Machine for automatically tamping underneath railway-sleepers during the finishing of the permanent way
US2107639A (en) * 1932-07-01 1938-02-08 Robert E Madison Railway ballasting machine
US2986100A (en) * 1958-02-26 1961-05-30 Kershaw Mfg Company Inc Railoway crosstie detector
US3011454A (en) * 1959-04-29 1961-12-05 Plasser Franz Ballast tamping machine
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
DE1173922B (de) * 1963-01-09 1964-07-16 Windhoff Rheiner Maschf Fahrbare Gleisstopfmaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680486A (en) * 1968-10-25 1972-08-01 Plasser Bahnbaumasch Franz Mobile track working apparatus
US3653327A (en) * 1969-03-24 1972-04-04 Matisa Materiel Ind Sa Machine for the tamping of ballast of railway tracks
US3706145A (en) * 1969-10-20 1972-12-19 Rheiner Mas Fab Windhoff Ag Machine for the ballasting of railroad tracks
US5046430A (en) * 1988-06-24 1991-09-10 Kaluzhskoe Proizvodstvennoe Obiedinenie Putevykh Mashin I Gidrapriuodok "Kalugaputmash" Tamping mechanism of tie-tamping outfit
US5007349A (en) * 1989-03-10 1991-04-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track leveling, lining and tamping machine
US5007350A (en) * 1989-03-10 1991-04-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Universal mobile track leveling, lining and tamping machine
AU620503B2 (en) * 1989-03-10 1992-02-20 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. A track tamping, levelling and lining machine comprising pivotal tamping units
US5031542A (en) * 1989-04-18 1991-07-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine

Also Published As

Publication number Publication date
DE1982450U (de) 1968-04-04
AT297775B (de) 1972-04-10
BR6896407D0 (pt) 1973-02-08
FR1553275A (de) 1969-01-10
GB1213381A (en) 1970-11-25
ES349487A1 (es) 1969-09-16
CH487300A (de) 1970-03-15

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