US3314374A - Apparatus for inserting crossties beneath a railroad track - Google Patents

Apparatus for inserting crossties beneath a railroad track Download PDF

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Publication number
US3314374A
US3314374A US439595A US43959565A US3314374A US 3314374 A US3314374 A US 3314374A US 439595 A US439595 A US 439595A US 43959565 A US43959565 A US 43959565A US 3314374 A US3314374 A US 3314374A
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US
United States
Prior art keywords
crossties
rails
crosstie
beneath
frame
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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 - Lifetime
Application number
US439595A
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English (en)
Inventor
Jr William H Moorehead
Royce G Kershaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kershaw Manufacturing Co Inc
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Kershaw Manufacturing Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kershaw Manufacturing Co Inc filed Critical Kershaw Manufacturing Co Inc
Priority to US439595A priority Critical patent/US3314374A/en
Priority to GB10579/66A priority patent/GB1085620A/en
Priority to SE3226/66A priority patent/SE305226B/xx
Priority to DE19661534047 priority patent/DE1534047A1/de
Priority to CH361766A priority patent/CH440355A/fr
Application granted granted Critical
Publication of US3314374A publication Critical patent/US3314374A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/06—Transporting, laying, removing or renewing sleepers
    • E01B29/09—Transporting, laying, removing or renewing sleepers under, or from under, installed rails
    • E01B29/10—Transporting, laying, removing or renewing sleepers under, or from under, installed rails for inserting or removing sleepers

Definitions

  • This invention relates to apparatus for inserting crossties beneath the rails of a railroad track and more particularly to such apparatus which shall be adapted to insert the crossties in a straight line while the top of the crosstie is free of ballast and the like.
  • An object of our invention is to provide apparatus for inserting crossties beneath the rails of a railroad track which shall be self-contained in that the crossties are carried by the apparatus and transferred sequentially to a predetermined location whereupon they are then transferred by a transversely movable frame to a position beneath the railroad rails, thus eliminating the necessity of providing men to guide the crossties beneath the railroad track, as is done presently.
  • a more specific object of our invention is to provide apparatus for inserting crossties beneath a railroad track of the character designated in which guide means is carried by the apparatus in position to engage the upper surface of the crosstie to thus prevent the leading end of the crosstie from striking the railroad rail.
  • a further object of our invention is to provide apparatus for inserting a crosstie beneath a railroad track of the character dwignated which shall include improved means for carrying a plurality of crossties, together with means for feeding the crossties sequentially to a predetermined location on the apparatus, thus eliminating the necessity of having to position the crosstie at spaced intervals alongside the railroad track.
  • a still further object of our invention is to provide apparatus for inserting crossties beneath a railroad track which shall be simple of construction, economical of manufacture and one which positively controls the depth,
  • a self-contained unit which carries a plurality of crossties thereon in position to be transferred to a conveying unit which in turn deposits the crossties sequentially to a predetermined location.
  • a transversely movable frame is carried by the apparatus in position to move the crossties from the predetermined location to a position outwardly of the rails and thence to a position beneath the rails.
  • the transverse frame is moved transversely of the railroad rails and is moved to selected elevations Patented Apr. 18, 1967 "ice whereby the crosstie is inserted in a precise, straight-line beneath the railroad rails.
  • FIG. 1 is a side elevational view of our improved apparatus showing a crosstie being inserted beneath the rails of a railroad track;
  • FIG. 2 is an enlarged, fragmental view showing the means for inserting the crosstie beneath the rails;
  • FIG. 3 is a sectional view taken generally along the line IIIIII of FIG. 2;
  • FIG. 4 is a sectional view taken generally along the line IV-IV of FIG, 2, drawn to a smaller scale;
  • FIG. 5 is a sectional view taken generally along line VV of FIG. 4;
  • FIG. 6 is a sectional view taken generally along the line VIVI of FIG. 4;
  • FIG. 7 is a top plan view of the apparatus, the crossties which are usually carried "by the apparatus being omitted for the sake of clarity;
  • FIG. 8 is an enlarged sectional view taken generally along the line VHIVIII of -F IG. 7;
  • FIG. 9 is a fragmental view showing the outermost end of the transverse unit which inserts the crossties.
  • a supporting frame 10 having flanged wheels 11 which are adapted to ride along the rails 12 which are supported by crossties 13.
  • the supporting frame 10 is propelled along the railroad track by suitable means well known in the art, such as providing a power unit 14 on the supporting frame.
  • the power unit 14 may be operatively connected to certain ones of the flanged wheels 11 by suitable means, such as by providing a mechanical drive between the power unit and the wheels or by providing a fluid drive therebetween. Since such drive means are well known in the art, no further description thereof is deemed necessary.
  • a rack 16 is provided adjacent the rear end of. the supporting frame 10 for receiving a plurality of crossties 13 to be inserted.
  • the rack 16 is provided with upstanding end frames 17 and 18 which are connected at their lower ends by a platform 19 for supporting the crossties.
  • the crossties are loaded onto the rack 16 in bundles by a cable 1% which in turn is operatively connected to a fluid pressure operated cylinder 21 whereby upon actua- 1 tion of the cylinder 21, the bundle of crossties is raised or lowered.
  • an endless conveyor unit indicated generally at 22 is mounted beneath the platform 19 of the rack 16.
  • the conveyor unit 22 comprises two endless chain units 23 and 24 which are propelled by suitable means, such as a fluid pressure motor 26 having a shaft 27 which in turn is operatively connected to a drive sprocket 28 that meshes with the chains 23 and 24.
  • suitable flights 29 are carried by the chains 23 and 24 in position to engage the crossties 13 whereupon they are conveyed forwardly of the supporting frame.
  • the platform 19 is provided with side members 31 which extend alongside the ends of the crossties 13 to thus maintain the crossties in proper position on the conveying Chains 23 and 24.
  • the under surface of the platform 19 is spaced vertically from the upper surface of the crossties 13 to permit free movement of the crossties beneath the platform.
  • the rear end of the conveyor chain 23 projects beyond the rear end of the rack 16 in position to receive the crossties 13 as they are transferred thereon by suitable means, such as a hoist unit 32 carried by the rear frame member 17, as shown in FIG. 1.
  • a platform 33 is mounted rearwardly of the conveyor unit 22 in position for an operator to stand and operate the hoist '32 to thus transfer the crossties 13 from the rack 16 onto the rearmost conveyor chain 23.
  • the crossties are then transferred forwardly to a predetermined location 34 forwardly of the rack 16.
  • a stop member 36 is mounted on the supporting frame in position to limit forward movement of the crosstie 13 beyond the predetermined location 34.
  • the supporting frame 10 is provided with a downwardly and forwardly sloping portion 37 which defines a support for the crosstie at the predetermined location 34. Suitable rollers 37" may be carried by the sloping portion 37, as shown. Accordingly, upon leaving the conveyor unit 22, the crossties 13 move sequentially down the inclined surface 37 into engagement with the stop 36.
  • the fluid pressure operated cylinder 21 is mounted on a boom 38 which is adapted for pivotal movement about a pivot pin 39, as shown in FIGS. 1 and 7.
  • a sheave 41 is mounted at the rear end of the boom 38 in position to engage the cable 19, as shown.
  • a sheave 42 is carried by a piston rod 43 for the cylinder 21 and the cable 19 passes around the sheaves 41 and 42 in such a manner that a small amount of movement of the piston rod 43 imparts a considerable amount of movement to the cable 19%
  • the boom 38 is mounted on suitable rollers 44 which are adapted to engage an arcuate trackway 46 whereby the boom is adapted to move from the position shown in FIG. 7 to a position transversely of the railroad track.
  • Movement of the boom 38 about the pivot pin 39 is accomplished by flexible cables 47 and 48 which are connected to opposite sides of the boom, as shown in FIG. 7.
  • Each of the cables 47 and 48 passes around a pair of sheaves 4Z9 and 51.
  • Each sheave 51 is connected to a piston rod 52 carried by a hydraulic cylinder 53 whereby upon actuation of the hydraulic cylinders, the cables 47 and '48 are moved in the proper direction to rotate the boom 38 in a manner well understood in the art. That is, a slight movement of either of the piston rods 52 imparts a considerable amount of movement to the cable connected thereto whereby the boom 38 is moved selectively from the position shown in FIG. 7 to a position transversely of the rails 12.
  • a pair of rearwardly extending pantograph arms '56 Pivotally connected to the rear ends of the pantograph arms 56 by suitable pivot pins 57 is a guide frame 58 which extends transversely of the supporting frame 10 and the railroad rails 12, as shown.
  • the guide frame 58 comprises a plurality of spaced apart, vertical frame members 59 which are of a generally inverted V-shape, as viewed in end elevation.
  • the vertical frame members 59 are connected at the upper ends thereof by an elongated member 61 while the lower ends of the vertical members 59 are connected by elongated members 62 and 63, as shown in FIG. 7.
  • Pivotally connected to the pantograph arms 56 by pivot pins 64 are piston rods 66 of fluid pressure operated cylinders 67.
  • the lower ends of the cylinders 67 are pivotally connected to the supporting frame 10 by suitable pivot pins 68.
  • Fluid under pressure is introuced into the fluid pressure operated cylinder 67 whereby the piston rod 66 is extended or retracted to move the guide frame 58' to selected positions relative to the supporting frame 10.
  • Pivotally connected to the supporting frame 10 by pivot pins 69 are a pair of fluid pressure operated cylinders 71 having rearwardly extending piston rods 72.
  • the rearmost ends of the piston rods '72 are pivotally connected to the lower portion of the guide frame 58 by suitable pivot pins 73. Accordingly, the guide frame 58 is adapted to be moved by the cylinders 67'and 71 from the solid line position shown in FIG. 2 to dotted line position.
  • rollers 77 are provided with arcuate outer surfaces which are adapted to engage the outer surfaces of elongated trackways 7d car-ried by a movable frame 79 that is adapted to move transversely of the supporting frame 10 and the rails 12.
  • the guide members 78 are rigidly connected to each other by vertical members 81 which are spaced from each other, as shown in FIG. 4.
  • a depending support bracket 83 Secured to the movable frame 79 is a depending support bracket 83, as shown in FIG. 4.
  • a pivot pin 84 Pivotally connected to the support bracket 83 by a pivot pin 84 is a depending gripping member 86 having gripping jaws 87 adjacent the lower end thereof in position to engage a crosstie 13 intermediate the ends thereof.
  • Pivotally connected to the gripping member 86 by a pivot pin 88 is a piston rod 89 of a fluid pressure operated cylinder 91.
  • the cylinder 91 is pivoatlly connected to the transverse frame 79 by a pivot pin 92; Fluid under pressure is, supplied to and exhausted from the fluid pressure operated cylinder 91 whereby the gripping member 86 may be raised and lowered relative to the supporting frame 10.
  • the gripping member 3-6 is elevated upon approaching the adjacent rail 12 whereby it moves upwardly and outwardly in position to pass over the supporting frame 10.
  • the gripping elements 87 are provided with a series of teeth 93 which are adapted to mesh with a rack member 94 which in turn is actuated by a fluid pressure operated cylinder 96.
  • a downwardly and outwardly extending support bracket 97 Mounted adjacent the outer end of the transversely movable frame 79 is a downwardly and outwardly extending support bracket 97.
  • a vertically movable unit 98 which is raised and lowered by suitable means, such as a fluid pressure operated cylinder 99 carrying a piston rod 191 connected to the movable unit 98, as clearly shown in FIG. 2.
  • the movable unit 98 is provided with vertically extending slots 2 therein for receiving a transverse member 193 which is secured by bolts 104 to inturned flanges 196 carried by the lower end of the bracket 97, as shown in FIGS. 3 and 9. Accordingly, vertical movement of the piston rod 101 and the movable unit 98 is limited by engagement of the transverse member 193 with the upper and lower ends of the vertical slots'1ll2.
  • each gripping element 198 is substantially identical to the gripping elements 87. That is, they are provided with a segment of teeth which are adapted to mesh with a rack 94 whereby the gripping elements are moved into and out of gripping relation with the crosstie.
  • the rack 94 shown in FIG. 9 is provided with an upturned end portion 109 which is operatively connected to a fluid pressure operated cylinder 111 whereby the gripping elements 108 are actuated upon operation of the fluid pressure operated cylinder 111 in a manner well understood in the art.
  • Pivotally connected to the forward end of the supporting frame 10 by a suitable pivot pin 112 is an outwardly projecting arm 113. Pivotally connected to the outer end of the arm 1'13 by a pivot pin 114 is one end of an elongated arm 116. The other end of the arm 116 is pivotally connected by a suitable connection 117 to a support bracket 118 carried by the inner surface of the downwardly and outwardly extending support bracket 97, as shown in FIG. 4. Pivotally connected to the elongated arm 116 intermediate the ends thereof by a pivot pin 119 is a piston rod 121 of a fluidpressure operated cylinder 122. The cylinder 122 is pivotally connected to the supporting frame by a suitable pivot pin 123.
  • the piston rod 121 forces the arm 116 outwardly to thereby move the movable frame 79 and the crosstie 13 carried thereby outwardly of the railroad rails.
  • the arm 116 moves inwardly to thus move the movable frame 79 and the crosstie 13 carried thereby beneath the rails 12. It will be understood that the guide frame 58 and the movable frame 79 carried thereby are both lowered to an elevation subjacent the rails 12 by actuation of the fluid pressure actuated cylinders 67 and 71.
  • the guide rollers 124 are provided with outwardly flaring flanges 126 at the sides thereof disposed to urge the crosstie 13 into correct position relative to the guide rollers.
  • the guide rollers 124 are mounted on shafts 127 which are supported by depending plate-like members 128 which in turn are secured to a movable frame 129, as shown in FIG. 5.
  • the movable frame 129 is pivotally connected to the supporting frame 10 by a supporting shaft 131.
  • an actuating arm 132 Pivotally connected to the outer end of the arm 132 by a pivot pin 133 is a piston rod 134 of a fluid pressure operated cylinder 136.
  • the cylinder 136 is pivotally connected to the supporting frame 10 by a suitable pivot pin 137.
  • a shaft 138 which carries a plurality of broom-like sweeper elements 139 which are adapted to engage the upper surface of the crosstie 13 to thereby maintain the same in a clean condition as it is being inserted beneath the rails.
  • the broom-like sweeper elements 139 are mounted at opposite sides of the guide rollers 124, as shown in FIG. 4.
  • Rotary motion is imparted to the shaft 131 by a flexible drive element 141 which is operatively connected to a suitable power unit, such as the fluid motor 142.
  • the shaft 131 is operatively connected to the shaft 138 by a flexible drive element 143 where-by rotary motion is imparted to the shaft 138.
  • a bundle of crossties 13 are loaded onto the rack 16 by actuating the fluid pressure operated cylinders 53 in a manner to swing the boom 38 laterally of the railroad rails 12 whereby the crossties 13 may be engaged by the flexible member 19
  • suitable bundle straps may be employed for encircling a bundle of crossties 13 which are in turn connected to the cable 19
  • the bundle is elevated by actuating cylinders 21 to retract the cable 19*.
  • the guide frame 58 and the transversely movable frame 79 carried thereby are then moved from the solid line position shown in FIGURE 2 to the dotted line position whereupon the gripping elements 108 and 87 are in position to engage the crosstie 13, as described hereinabove.
  • the guide frame 58 is moved to the dotted line position shown in FIG. 2 by energizing the fluid pressure operated cylinders 67 and 71.
  • the transversely movable frame 79 With the crosstie gripped by the gripping elements 87 and 108, the transversely movable frame 79 is moved outwardly and laterally of the supporting frame whereby the crosstie 13 is positioned outwardly of the rails 12. Lateral movement of the movable frame 79 is accomplished by actuating the fluid pressure operated cylinder 122 whereupon the arm 116 moves outwardly, as shown in FIG. 7.
  • the guide frame 58 and the transversely movable frame 79 carried thereby are lowered by actuating the cylinders 67 and 71 to thus position the crosstie 13 at the exact location to be inserted beneath the rails 12. That is, the crosstie is lowered to a position whereby it is subjacent the rails 12.
  • the fluid pressure operated cylinder 122 is again actuated to move the arm 116 inwardly to thus insert the crosstie beneath the rails 12.
  • the rollers 124 limit upward movement of the crosstie relative to the rails thus assuring that the leading end of the crosstie 13 does not strike the far rail. Also, as the crosstie 13 is being inserted, the sweeper elements 139 continuously engage the upper surface of the crosstie to maintain the same free of ballast during insertion of the crosstie.
  • the fluid pressure operated cylinder 96 is actuated to release the gripper elements 87 and the fluid pressure operated cylinder 91 is actuated to elevate the gripping member 86 whereby it passes over the supporting frame to thus permit inward movement of the transversely movable frame 79 to its innermost position to accurately position the crosstie 13 beneath the rails 12.
  • the outermost gripping elements 108 can be raised and lowered vertically by actuating the cylinder 99 so as to tilt the crosstie 13 to clear the obstructions.
  • the outermost gripping elements 108 are released by actuating the cylinder 111.
  • the guide frame 58 and the transversely movable frame 79 are then elevated and moved to the dotted line position shown in FIG. 2 for engagement with another crosstie 13 whereupon the cycle of operation is repeated.
  • the supporting frame 10 travels along the rails 12 to position the movable frame 79 at the correct position for insertion of the crossties 13 beneath the rails.
  • a suitable operators seat is mounted on the supporting frame 10 in position for the operator to have a clear view of the tie inserting apparatus.
  • Apparatus for inserting crossties beneath the rails of a railroad track comprising:
  • (g) means to move said transverse frame inwardly from said lowered position to insert a crosstie beneath said rails.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 1 in which a guide member is carried by said supporting frame in position to engage the upper surface of a crosstie as the crosstie is inserted benath the rails to limit upward movement of the crosstie as it is inserted beneath the rails.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 1 in which a first pair of gripping elements are carried by said transverse frame in position to engage a crosstie being inserted intermediate the ends of said crosstie, and a second pair of gripping elements are carried by said transverse frame in position to engage said crosstie being inserted adjacent an end thereof, said first pair of gripping elements being adapted to be elevated upon approaching a rail of the railroad track.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 5 in which power actuating means is interposed between said first pair of gripping elements and said transverse frame to elevate said first pair of gripping elements upon approaching a rail of the railroad track.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 1 in which the means to supply crossties sequentially at a predetermined location on said supporting frame comprises:
  • conveyor means mounted subjacent said platform and disposed to deliver the crossties to said predetermined location
  • (c) means to transfer the crossties from said platform to said conveyor means.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 8 in which the conveyor means comprises an endless conveyor mounted subjacent the platform with one end of said conveyor projecting beyond said platform in position to receive the crossties sequentially from said platform.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 9 in which a hoist unit is mounted on said supporting frame to transfer the crossties from said platform to said one end of the endless conveyor.
  • Apparatus for inserting crossties beneath the rails of a railroad track comprising:
  • (b) means to move said movable frame inwardly relative to said supporting frame to insert a crosstie beneath said rails.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 12 in which the guide frame is operatively connected to the supporting frame by pantograph arms.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 12 in which fiuid pressure operated cylinders are mounted between said guide frame and said supporting frame to move said guide frame relative to said supporting frame.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 12 in which guide rollers are mounted between said guide frame and said movable frame.
  • Apparatus for inserting crossties beneath the rails of a railroad track as defined in claim 14 in which guide rollers are mounted on said guide frame and elongated track members are mounted on said movable frame in position to receive said guide rollers.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
US439595A 1965-03-15 1965-03-15 Apparatus for inserting crossties beneath a railroad track Expired - Lifetime US3314374A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US439595A US3314374A (en) 1965-03-15 1965-03-15 Apparatus for inserting crossties beneath a railroad track
GB10579/66A GB1085620A (en) 1965-03-15 1966-03-10 Apparatus for inserting sleepers beneath a railroad track
SE3226/66A SE305226B (xx) 1965-03-15 1966-03-11
DE19661534047 DE1534047A1 (de) 1965-03-15 1966-03-14 Geraet zum Einsetzen von Schwellen unter die Schienen einer Eisenbahnstrecke
CH361766A CH440355A (fr) 1965-03-15 1966-03-14 Appareil pour insérer des traverses sous les rails d'une voie ferrée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439595A US3314374A (en) 1965-03-15 1965-03-15 Apparatus for inserting crossties beneath a railroad track

Publications (1)

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US3314374A true US3314374A (en) 1967-04-18

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Application Number Title Priority Date Filing Date
US439595A Expired - Lifetime US3314374A (en) 1965-03-15 1965-03-15 Apparatus for inserting crossties beneath a railroad track

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US (1) US3314374A (xx)
CH (1) CH440355A (xx)
DE (1) DE1534047A1 (xx)
GB (1) GB1085620A (xx)
SE (1) SE305226B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133266A (en) * 1977-03-24 1979-01-09 Taylor Glenn E Railroad crosstie replacement machine
US4392433A (en) * 1980-08-07 1983-07-12 Railroad Service, Inc. Railway maintenance machine
US4583274A (en) * 1982-03-01 1986-04-22 Trw Inc. Method of making an airfoil
US4884509A (en) * 1986-10-13 1989-12-05 Franz Plasser Bannbaumaschinen-Industriegesellschaft M.B.H. Mobile tie gang apparatus
US5617795A (en) * 1994-09-14 1997-04-08 Harsco Corporation Tie guide and plate holding apparatus
US6691881B1 (en) * 2002-01-16 2004-02-17 Aaron A. Masse Combined locomotive and crane construction
US9850624B2 (en) 2015-04-21 2017-12-26 Harsco Technologies LLC Mobile automated tie replacement system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133266A (en) * 1977-03-24 1979-01-09 Taylor Glenn E Railroad crosstie replacement machine
US4392433A (en) * 1980-08-07 1983-07-12 Railroad Service, Inc. Railway maintenance machine
US4583274A (en) * 1982-03-01 1986-04-22 Trw Inc. Method of making an airfoil
US4884509A (en) * 1986-10-13 1989-12-05 Franz Plasser Bannbaumaschinen-Industriegesellschaft M.B.H. Mobile tie gang apparatus
US5617795A (en) * 1994-09-14 1997-04-08 Harsco Corporation Tie guide and plate holding apparatus
US5722325A (en) * 1994-09-14 1998-03-03 Harsco Corporation Tie guide and plate holding apparatus
US6691881B1 (en) * 2002-01-16 2004-02-17 Aaron A. Masse Combined locomotive and crane construction
US9850624B2 (en) 2015-04-21 2017-12-26 Harsco Technologies LLC Mobile automated tie replacement system

Also Published As

Publication number Publication date
DE1534047A1 (de) 1969-06-19
SE305226B (xx) 1968-10-21
CH440355A (fr) 1967-07-31
GB1085620A (en) 1967-10-04

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