US1461061A - Rail bond - Google Patents

Rail bond Download PDF

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US1461061A
US1461061A US323757A US32375719A US1461061A US 1461061 A US1461061 A US 1461061A US 323757 A US323757 A US 323757A US 32375719 A US32375719 A US 32375719A US 1461061 A US1461061 A US 1461061A
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rail
rail sections
terminal elements
welded
cable
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US323757A
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Haulton Thomas
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M5/00Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents

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  • This invention relates to certain new and useful improvements in rail bonds which are used to electrically connect adjacent or aligned rail sections.
  • the principal object of the invention lis to provide a rail bond, the terminals of which are constructed so as to snugly fit around one edge of the base flanges of the aligned rail sections and be welded thereto, and the electrical conductor disposed between the terminals being welded to the same.
  • Another object of the invention is to provide a rail bond in which the electrical conductor is disposed beneath the base Iianges of the aligned rail sections so that it is out of the way and not likely to become injured.
  • Another object of the invention is to generally improve upon devices of this class by the provision of an extremely simple, strong, durable and inexpensive construction, and one which will be well adapted to the purpose for which it is designed.
  • Figure 1 is a side elevation of a palrof aligned rail sections., showing the application of a rail bond constructed in accordance wlth this invention.
  • Fig. 2 is a transverse sectional view across one of the rail sections, said view belng taken on the plane indicated by the line. 2--2 of Fig. 1.
  • v n Fig. 3 is a horizontal sectional view taken on the plane indicated b line 3- 3 of Fig. 2.
  • Fig. 4 is a longitu 'nal sectional view through a portion of one of the termmal elements taken on the plane indicated by the line 4--4 of Fig. 2, and
  • Fig. 5 is an end view of one of the terminal elements illustrating that the angle between the walls of the notch for receiving one edge of the base flange of the rail is less than the angle between the upper and lower sides of base flange 5.
  • the rail sections 1 and 2 are connected together by means of plates 6 and 7 disposed on opposite sides of the webs A and by bolts 8 and nuts 9.
  • the numeral l0 represents rail bond terminals which are preferably in the form of malleable iron castings having notches 11 in one of their edges to receive one @t the edges of the base flanges 5 of the rail.
  • the notches 11 form the terminals into substantially C-shaped clips having enlarged lower membersV and flat rectangular-shaped upper members.
  • the angle etween the walls of the notches 11 is smaller than the angle between the upper and lower sides of the base flanges 5 of the rail so that the terminal elements 10 have to be forced onto said base flanges in order to spread the upper and lower 'members of the terminal elements or clips apart and to effect a clamping engagement.
  • rlhis - may be done by driving the terminal elements 10 upon the base fianges.
  • the angle between the walls of the notches 11 will change to correspond with the angle between the upper and lower sides of the base flanges.
  • the terminal elements 10 are malleable caStings, they will not be ruptured when they are distorted in this manner.
  • the portions 12 of the terminal elements 10 which 'are disposed beneath the base flanges 5 of the rail are provided near their inner or free longitudinal edges with aligned longitudinally extending openings 13, the ends of which are flared outwardly as at 1A.
  • the dialnet/er of the cable 15 is substantially equal to the diameter of the openings 13 so that the cable fits rather snugly in said openings. After the ends of the cable are inserted in the openings 13, they are spot welded so I that approximately one-third of the ,minal elements.
  • the upper members of the terminal elements or clips 10 are wider than the distance between parallel planes passing through one edge of the base flange of the rail sections and the corresponding edge of the heads of the rail sections, so that said upper members l extend under the heads of the rail sections.
  • the cable 15 and its two terminal elements to which it is welded is made as a unit and applied to the 'base anges of a pair of aligned rail sections in the manner above described. After the elements 10 have been driven as far as they will go upon the base flanges of the rail sections, the upper members of the elements 10 are arc welded to the same. This provides a simple means for securely fastening the terminal elements to the rail sections.
  • Another important feature of the invention resides in the fact that the angle between the walls of the notches 11 in the terminal elements is less than the angle between the upper and lower Asides of the base flanges of the rail sectionsso that when the terminal elements are driven on the base anges they will lock themselves to the base flanges and no extra devlce or apparatus is necessary to hold the terminal elements to the base flanges while said elements are being welded.
  • the invention is applicable with many advantages to all types of railroads, but it is Yespecially applicable to mine haulage railvery poorly laid and-cared for and the joints r between the rail sections are generally loose, so that there is considerable movement of the rail sections at the joints for every wheel that passes thereover.
  • the present invention withstands this condition by reason of the fact that the electric cable isiiexible and because of the secure manner in which the ends of the cable are connected to the terminal elements and the latter to the rail sections.
  • the beds of mine haulage roads are usually wet and often th'e rails are entirely covered with vwater which is generally of high acid content causing corrosion of metal mechanism or devices moistened thereby. Under this state of circumstances good electrical' connection between the rails and bonds is diliicult toobtain except by actual weldin such as in this invention where the. termina elements are welded to the rail sections and Athe electric cable is welded to the terminal elements.
  • the presasmaller angle than the angle between the ent invention withstands this by reason of upper and lower surfaces of the base flanges the fact that the electric cable is positioned of the rail sections and being spread into entirely beneath the base flanges of the rail clasping engagement with the base anges sections where it cannot be engaged by deof the rail sections by said clips being forced railed wheels, and the portions of the terupon one edge of said base flanges, the said minal elements which extend over the base upper members being of such a width as to Hanges of the rail sections are so strongly extend under the heads of the rail sections constructed and connected to the base flanges and being welded only along their inner of the rail sections in such a manner that deedges to the base flanges of the rail sections,

Description

July M), 1923. LALGLGXS! T. HAULTON RAIL BOND Filed Sept. l5 1919 lullig I W'Q HHH/Wim.,
A mm ma n Patented .Bully 1Q, 123.
N ll
THOMAS HAULTON, 0F JOHNSTOWN, PENNSYLVAMA.
RAIL BOND.
Application ledl September 15, 1919. Serial No. 323,757.
To all whom z't may concern:
Be it known that I, THOMAS HAuLrroN, a citizen of the United States, residing at Johnstown, in the county' of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in Rail Bonds; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to certain new and useful improvements in rail bonds which are used to electrically connect adjacent or aligned rail sections.
The principal object of the invention lis to provide a rail bond, the terminals of which are constructed so as to snugly fit around one edge of the base flanges of the aligned rail sections and be welded thereto, and the electrical conductor disposed between the terminals being welded to the same.
Another object of the invention is to provide a rail bond in which the electrical conductor is disposed beneath the base Iianges of the aligned rail sections so that it is out of the way and not likely to become injured.
Another object of the invention is to generally improve upon devices of this class by the provision of an extremely simple, strong, durable and inexpensive construction, and one which will be well adapted to the purpose for which it is designed.
With these and other objects in view, the invention consists ofthe novel features of construction, and the combination and arrangement of parts as will be hereinafter fully described and claimed.
ln the accompanying drawings in which similar reference characters designate like parts throughout the several views;
Figure 1 is a side elevation of a palrof aligned rail sections., showing the application of a rail bond constructed in accordance wlth this invention.
Fig. 2 is a transverse sectional view across one of the rail sections, said view belng taken on the plane indicated by the line. 2--2 of Fig. 1. v n Fig. 3 is a horizontal sectional view taken on the plane indicated b line 3- 3 of Fig. 2.
Fig. 4 is a longitu 'nal sectional view through a portion of one of the termmal elements taken on the plane indicated by the line 4--4 of Fig. 2, and
Fig. 5 is an end view of one of the terminal elements illustrating that the angle between the walls of the notch for receiving one edge of the base flange of the rail is less than the angle between the upper and lower sides of base flange 5. The rail sections 1 and 2 are connected together by means of plates 6 and 7 disposed on opposite sides of the webs A and by bolts 8 and nuts 9.
The numeral l0 represents rail bond terminals which are preferably in the form of malleable iron castings having notches 11 in one of their edges to receive one @t the edges of the base flanges 5 of the rail. The notches 11 form the terminals into substantially C-shaped clips having enlarged lower membersV and flat rectangular-shaped upper members. As clearl shown in Fig. 5 of the drawings the angle etween the walls of the notches 11 is smaller than the angle between the upper and lower sides of the base flanges 5 of the rail so that the terminal elements 10 have to be forced onto said base flanges in order to spread the upper and lower 'members of the terminal elements or clips apart and to effect a clamping engagement. rlhis -may be done by driving the terminal elements 10 upon the base fianges. When this is done the angle between the walls of the notches 11 will change to correspond with the angle between the upper and lower sides of the base flanges. Owing to the fact that the terminal elements 10 are malleable caStings, they will not be ruptured when they are distorted in this manner.
The portions 12 of the terminal elements 10 which 'are disposed beneath the base flanges 5 of the rail are provided near their inner or free longitudinal edges with aligned longitudinally extending openings 13, the ends of which are flared outwardly as at 1A. A flexible electric cable 15, that is to say, a cable made of strands of copper wire, is disposed beneath the base Hanges 5 of the rail sections between the terminal elements 10 and has its ends disposedin the openings 13. As shown in the drawings the dialnet/er of the cable 15 is substantially equal to the diameter of the openings 13 so that the cable fits rather snugly in said openings. After the ends of the cable are inserted in the openings 13, they are spot welded so I that approximately one-third of the ,minal elements. Much importance is to be paid to this means for anchoring the ends of the cable to the terminal elements. Prior types of rail bonds employing flexible copper cables anchored to terminal` elements which are welded to the rail sections have proven impractical because the high heat neceary to weld the terminal elements to -the rail section has oxidized the copper cable and weakened it so that it could not withstand much strain or vibration without breaking. The present invention overcomes this defect because of the fact that only portions of the ends of the cable are welded to the terminal elements while the other portions` of the ends of the cable are fitted tightl in the openings through the terminal e ements so that the weakened welded portions are reinforced. The rtions of the cable which emerge from t e terminal elements will therefore readily bend upon vibration without breaking or without Jfracturing the weakened welded parts.` To further reduce the danger of injuring the cable as it emerges from the openings in the terminal elements, the ends of these openings are flared outwardly to provide a bending radius so that any bending of the cable will not be concentrated at a sharp point. In view of the fact that the terminal elements are welded to the upper sides of the base flanges of the rail sections, while the cable is disposed entirely beneath the base flanges of the rear sections and welded to the terminal elements at this point, no injury will be done to the cable or to its connection with the terminal elements when the latter are being welded to the rail sections.
The upper members of the terminal elements or clips 10 are wider than the distance between parallel planes passing through one edge of the base flange of the rail sections and the corresponding edge of the heads of the rail sections, so that said upper members l extend under the heads of the rail sections.
l:ses
The cable 15 and its two terminal elements to which it is welded is made as a unit and applied to the 'base anges of a pair of aligned rail sections in the manner above described. After the elements 10 have been driven as far as they will go upon the base flanges of the rail sections, the upper members of the elements 10 are arc welded to the same. This provides a simple means for securely fastening the terminal elements to the rail sections.
By having the cable 15 welded to the tel.-
i minal members 10 and the latter in turnl welded to the rail sections, a perfect union between these parts is formed and a perfect electrical connection between the rail sections is also formed.
By having the cable 15 Adisposed entirely i beneath the base flanges of the rail sections terminal elements 10, or in fact the portions l of said elements which are disposed above the base flanges of the rail sections, the only injury which would likely be done to said terminal elements would be to distort them as the union by the welding process between the terminal elements and the base flanges of the rail sections could not be easily broken.
Another important feature of the invention resides in the fact that the angle between the walls of the notches 11 in the terminal elements is less than the angle between the upper and lower Asides of the base flanges of the rail sectionsso that when the terminal elements are driven on the base anges they will lock themselves to the base flanges and no extra devlce or apparatus is necessary to hold the terminal elements to the base flanges while said elements are being welded.
The invention is applicable with many advantages to all types of railroads, but it is Yespecially applicable to mine haulage railvery poorly laid and-cared for and the joints r between the rail sections are generally loose, so that there is considerable movement of the rail sections at the joints for every wheel that passes thereover. The present invention withstands this condition by reason of the fact that the electric cable isiiexible and because of the secure manner in which the ends of the cable are connected to the terminal elements and the latter to the rail sections. v
The beds of mine haulage roads are usually wet and often th'e rails are entirely covered with vwater which is generally of high acid content causing corrosion of metal mechanism or devices moistened thereby. Under this state of circumstances good electrical' connection between the rails and bonds is diliicult toobtain except by actual weldin such as in this invention where the. termina elements are welded to the rail sections and Athe electric cable is welded to the terminal elements.
The tracks of mine haulage roads are constantly being taken up and relaid, which obviously re uires detachment of the bonds from the ral- Wherever this is contem- IUD plated the welding of the terminal elements What is claimed is: to the rail sections is` done only along the 'llhe combination with a pair of alined rail inner longitudinal edges of the upper memsections, of a bond electrically connecting bers of the terminal elements, so that when the rail sections and comprising a pair of the rails are taken up the terminal elements terminal elements clasped around one edge may be cut by means of a cold chisel or the of the base flanges of the rail sections, said like along the inner longitudinal edges of elements being made of malleable metal of their upper members away from the rail seca low degree of conductivity and being in tions without damaging the remaining porthe form of substantially C-shaped clips tions of the terminal elements which then having fiat substantially rectangular shaped can be used again. upper members and enlarged lower members In mine haulage railroads car derailment disposed respectively above and below the is very frequent, and an e'ective rail bond base langes of the ra-il sections, said memfor such roads must be constructed so as to bers being relatively arranged normally at not be damaged by derailed cars. The presasmaller angle than the angle between the ent invention withstands this by reason of upper and lower surfaces of the base flanges the fact that the electric cable is positioned of the rail sections and being spread into entirely beneath the base flanges of the rail clasping engagement with the base anges sections where it cannot be engaged by deof the rail sections by said clips being forced railed wheels, and the portions of the terupon one edge of said base flanges, the said minal elements which extend over the base upper members being of such a width as to Hanges of the rail sections are so strongly extend under the heads of the rail sections constructed and connected to the base flanges and being welded only along their inner of the rail sections in such a manner that deedges to the base flanges of the rail sections,
railed wheels will not injure them so as to -whereby said clips can be easily separated cripple their functions. The mner longifrom the base flanges of the rail sections by tudinal edges of the upper members of the cutting them along the inner edges of their terminal elements which are welded to the said upper members, the said lower members base flanges of the rail sections are disposed being provided near their inner edges with entirely beneath theheads of the rail seclongitudinally extending openings, and a tions so that derailed wheels cannot engage `exible conductor located entirely beneath the terminal elements at the points where the base Bauges of the rail sectionsy and conthe latter are welded to the rail sections. necting said clips and having its ends dis- From the foregoing description, taken in posed in said openings and welded to said connection with the accompanying drawlower members, said. conductor being of a ings, the construction and use of the invenmetal of' a comparatively high degree of tion will be readily understood. conductivity.
Various changes in form, proportion, and ln testimony whereof ll have hereunto set in the minor details of construction may be my hand. resorted to without departing from the spirit of the invention as defined in the claim. THMAS HULTON.
US323757A 1919-09-15 1919-09-15 Rail bond Expired - Lifetime US1461061A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443000A (en) * 1947-06-04 1948-06-08 Howard T Elkins Bonding cable terminal bracket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443000A (en) * 1947-06-04 1948-06-08 Howard T Elkins Bonding cable terminal bracket

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