US2795442A - Rail bonds - Google Patents

Rail bonds Download PDF

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Publication number
US2795442A
US2795442A US247110A US24711051A US2795442A US 2795442 A US2795442 A US 2795442A US 247110 A US247110 A US 247110A US 24711051 A US24711051 A US 24711051A US 2795442 A US2795442 A US 2795442A
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US
United States
Prior art keywords
sleeve
rail
outer sleeve
inner sleeve
conductor
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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
US247110A
Inventor
John R Wilson
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HANLON AND WILSON Co
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HANLON AND WILSON Co
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Application filed by HANLON AND WILSON Co filed Critical HANLON AND WILSON Co
Priority to US247110A priority Critical patent/US2795442A/en
Application granted granted Critical
Publication of US2795442A publication Critical patent/US2795442A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/40—Radially spaced members joined by independent coupling

Definitions

  • Rail bonds which are used to electrically connect adjacen-t rails of a railroad track so that current can be carried by the rails for signalling and other purposes.
  • Rail bonds generally comprise a stranded flexible conductor and a terminal secured to each end of the conductor and adapted to be driven into a hole in a rail to make a tight electrical connection therewith.
  • the present invention provides a rail bond in which the terminals may be easily and rapidly applied to the rails and make a tight connection therewith.
  • Figure l is a side eleva-tion illustrating my rail bond applied to the adjacent ends of two railroad rails
  • Figure 2 is a plan view of the structure shown in Figure 1;
  • Figure 3 is an elevation of the rail bond
  • Figure 4 is a partial longitudinal section through one end of a rail bond, on an enlarged scale
  • Figure 5 is a transverse section taken on the line V--V of Figure 4.
  • Figure 6 is a partial longitudinal sect-ion through an end of the conductor and the inner sleeve
  • Figure 7 is a plan view of the outer sleeve.
  • Figures 8, 9 and 10 illustrate progressive stages in the application of the rail bond to a rail.
  • the -rail bond comprises a flexible stranded conductor 5 having secured to it at each end an inner sleeve 6 and an outer sleeve 7.
  • the llexible conductor 5 is made up of a plurality of copper strands 5a as shown in Figure 5.
  • the inner sleeve 6 also is made of copper and is swaged to the end of the conductor so as to tightly secure the two parts together. Preferably rotary swaging is employed for uniting the parts.
  • Each of the inner sleeves 6 is received with a loose t in a bore 8 of the outer sleeve 7 which is made of stainless steel.
  • the outer end 10 of the outer sleeve 7 preferably is closed and has a substantially greater thickness than the remainder of the sleeve.
  • the outer sleeve 7 is provided with four longitudinal slots 11 and the inner end 12 of the outer sleeve 7 is crimped inwardly slightly so as to retain the inner sleeve 6 within it temporarily.
  • the manner of applying the rail bond to a rail 14 is illustrated in Figures 8, 9 and l0.
  • the outer sleeve 7 is in place on the inner sleeve 6 so that the outer sleeve will not become lost.
  • the user removes the outer sleeve from the inner sleeve. This can be done readily by pulling the conductor 5 and sleeve 7 in opposite directions so as to cause the inner sleeve 6 to slide out of the bore 8 in the outer sleeve.
  • the slots 11 in the outer sleeve allow the latter to expand suiciently so that the parts can be separated.
  • the slots 11 in the outer sleevev 7 and the crimped end 12 of the outer sleeve cooperate in providing ,an arrangement whereby the outerlsleeve can be retained temporarily on the inner sleeve so that it will not become lost during handling and shipment and yet the outer sleeve can be readily removed from the inner sleeve so as to allow the inner sleeve to pass through the opening 16 in the rail and thereafter the outer sleeve can be readily assembled on the inner sleeve before the outer sleeve is driven into the opening in the rail.
  • a rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, an outer sleeve having a cylindrical -bore adapted to receive said inner sleeve and the end of the conductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer closed end adapted to be struck by 'a hammer in driving the rail bond terminal into a hole in a rail, said outer sleeve having an outer surface which tapers from its closed end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its open end and terminating adjacent to but short of its closed end and the smaller end of said tapered outer sleeve being crimped inwardly so as to detachably retain the outer sleeve on the inner sleeve before the rail bond terminal is applied to a rail.
  • a rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, an outer sleeve having a cylindrical bore adapted to receive said inner sleeve and the end of the iconductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer closed end adapted to be struck by a hammer in driving the rail bond terminal into a hole in the rail, said outer sleeve having an outer surface which tapers from its closed end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its open end and terminating adjacent to but short of its closed end and said outer sleeve having inwardly directed means to detachably retain the outer sleeve on the inner sleeve before the rail bond terminal is applied to a rail.
  • a rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, 'an outer sleeve having a cylindrical bore adapted to receive said inner sleeve and the end of the conductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer end adapted to be struck by a hammer in driving the rail bond terminal into a hole in the rail, said outer sleeve having an outer surface which tapers from its outer end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its outer end and terminating adjacentV to but short of its closed end and the shorter end of said tapered outer sleeve being crimped inwardly so as to detachably retain the outer sleeve on the innerl sleeve before the rail bond terminal is applied :man: .Y Y A Y A raii bond

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Description

June 11, 1957 J, R, W|| SQN 2,795,442
RAlL BONDS Filed Sept. 18. 1951 2 Sheets-Sheet l Fig.
Wllm, MMIII" IWH- Mlm. llllll/ 'HIIIII NW IN1/E R. John R. Wl n A T TORNE YS June 1l, 1957 J. R. wlLsoN 2,795,442
RAIL BONDS I v Filed Sept. 18. 1951 2 Sheets-Sheet 2 1NVENTOR. John W//son WM V' H/s ATTORNEYS United States Patent RAIL BONDS Application September 18, 1951, Serial No. 247,110
4 Claims. (Cl. 287-203) This invention relates to rail bonds which are used to electrically connect adjacen-t rails of a railroad track so that current can be carried by the rails for signalling and other purposes. Rail bonds generally comprise a stranded flexible conductor and a terminal secured to each end of the conductor and adapted to be driven into a hole in a rail to make a tight electrical connection therewith.
The present invention provides a rail bond in which the terminals may be easily and rapidly applied to the rails and make a tight connection therewith.
In the accompanying drawings which illustrate a preferred embodiment of my invention- Figure l is a side eleva-tion illustrating my rail bond applied to the adjacent ends of two railroad rails;
Figure 2 is a plan view of the structure shown in Figure 1;
Figure 3 is an elevation of the rail bond;
Figure 4 is a partial longitudinal section through one end of a rail bond, on an enlarged scale;
Figure 5 is a transverse section taken on the line V--V of Figure 4;
Figure 6 is a partial longitudinal sect-ion through an end of the conductor and the inner sleeve;
Figure 7 is a plan view of the outer sleeve; and
Figures 8, 9 and 10 illustrate progressive stages in the application of the rail bond to a rail.
Referring more particularly to the accompanying drawings, the adjacent ends of two rails 2 are connected by splice bars 3 by means of bolts 4 in the usual manner. The -rail bond comprises a flexible stranded conductor 5 having secured to it at each end an inner sleeve 6 and an outer sleeve 7. The llexible conductor 5 is made up of a plurality of copper strands 5a as shown in Figure 5. The inner sleeve 6 also is made of copper and is swaged to the end of the conductor so as to tightly secure the two parts together. Preferably rotary swaging is employed for uniting the parts.
Each of the inner sleeves 6 is received with a loose t in a bore 8 of the outer sleeve 7 which is made of stainless steel. The outer end 10 of the outer sleeve 7 preferably is closed and has a substantially greater thickness than the remainder of the sleeve. The outer sleeve 7 is provided with four longitudinal slots 11 and the inner end 12 of the outer sleeve 7 is crimped inwardly slightly so as to retain the inner sleeve 6 within it temporarily.
The manner of applying the rail bond to a rail 14 is illustrated in Figures 8, 9 and l0. When the rail bond is shipped by the manufacturer to the user, the outer sleeve 7 is in place on the inner sleeve 6 so that the outer sleeve will not become lost. Before applying the rail bond to the rail, the user removes the outer sleeve from the inner sleeve. This can be done readily by pulling the conductor 5 and sleeve 7 in opposite directions so as to cause the inner sleeve 6 to slide out of the bore 8 in the outer sleeve. The slots 11 in the outer sleeve allow the latter to expand suiciently so that the parts can be separated. One end of the conductor 5 with the inner sleeve 6 secured thereto is inserted through the hole 16 ice in the rail as shown in Figure 8 and the outer sleeve 7 is slid over the inner sleeve. The slots 11 in the outer sleeve allow the outer sleeve to expand sufliciently for this purpose. The lconductor 5, inner sleeve 6 kand outer sleeve 7 are then moved to enter the outer sleeve in the hole 16 as shown in Figure 9, and the outer sleeve is driven into tight engagement with the rail by hammering on the closed end 10 of the sleeve 7. The final position assumed by the parts is illustrated in Figure 10. Due .to the fact that the outer surface 17 of the sleeve 7 is tapered', the driving of the outer sleeve into the hole inthe rail exerts a powerful force on the inner sleeve 6 and more permanently secures it to the conductor 5.
The slots 11 in the outer sleevev 7 and the crimped end 12 of the outer sleeve cooperate in providing ,an arrangement whereby the outerlsleeve can be retained temporarily on the inner sleeve so that it will not become lost during handling and shipment and yet the outer sleeve can be readily removed from the inner sleeve so as to allow the inner sleeve to pass through the opening 16 in the rail and thereafter the outer sleeve can be readily assembled on the inner sleeve before the outer sleeve is driven into the opening in the rail.
The invention is not limited to the preferred embodiment but may be otherwise embodied or practiced within the scope of the following claims.
I claim:
l. A rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, an outer sleeve having a cylindrical -bore adapted to receive said inner sleeve and the end of the conductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer closed end adapted to be struck by 'a hammer in driving the rail bond terminal into a hole in a rail, said outer sleeve having an outer surface which tapers from its closed end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its open end and terminating adjacent to but short of its closed end and the smaller end of said tapered outer sleeve being crimped inwardly so as to detachably retain the outer sleeve on the inner sleeve before the rail bond terminal is applied to a rail.
2. A rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, an outer sleeve having a cylindrical bore adapted to receive said inner sleeve and the end of the iconductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer closed end adapted to be struck by a hammer in driving the rail bond terminal into a hole in the rail, said outer sleeve having an outer surface which tapers from its closed end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its open end and terminating adjacent to but short of its closed end and said outer sleeve having inwardly directed means to detachably retain the outer sleeve on the inner sleeve before the rail bond terminal is applied to a rail.
3. A rail bond terminal comprising a stranded conductor, an inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, 'an outer sleeve having a cylindrical bore adapted to receive said inner sleeve and the end of the conductor secured to said inner sleeve, said outer sleeve having an inner open end and an outer end adapted to be struck by a hammer in driving the rail bond terminal into a hole in the rail, said outer sleeve having an outer surface which tapers from its outer end to its open end, said outer sleeve being provided with at least one longitudinal slot extending from its outer end and terminating adjacentV to but short of its closed end and the shorter end of said tapered outer sleeve being crimped inwardly so as to detachably retain the outer sleeve on the innerl sleeve before the rail bond terminal is applied :man: .Y Y A Y A raii bondl terminali comprising a strandedA conductr-,an-inner sleeve secured to the conductor adjacent one end thereof, the outer surface of said inner sleeve being cylindrical, an outer sleeve having a cylindrical bore 'adapted to receive sa-id inner sleeve and the end of the conductor secured to said inner sleeve, said outer sleeve having aninnerropen `end and an outer closed end adapted to be struck by a hammer in driving the rail bond terminal into 'a hole in a rail, rsaicl outer sleeve having-an outer ufaee-Whieh tapers f-roin its closed end to its open end, said outer sleeve being provided with at least one Ingitudinal slot extending from its open e'nd and termihating kailjaceri't to but short of its closed end, the open end of the outer sleeve being in spaced relationship to the stranded conductor 'after the rail bond 'terininl has been applied to the rail.
References Cited inthe file of this patent UNITED STATES PATENTS 449,721 Wheeler Apr. 7, 1891 517,884 Paulsen Apr. 10, 1894 562,107 Wiggin June 16, 1896 609,252 Tucker Aug. 16, 1898 697,890 Rowell Apr. l5, 1902 843,763 McLaughlin Feb. l2, 1907 1,023,340 Sturdevant Apr. 16, 1912 1,643,110 Briggs f Sept. 20, 1927 1,865,723 Pipes `Tuly 5, 1932 1,886,086 Damon Nov. 1, 1932 1,909,344 Green et al May 16, 1933 2,357,733 Guderian Sept. 5, 1944
US247110A 1951-09-18 1951-09-18 Rail bonds Expired - Lifetime US2795442A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844601A (en) * 1969-07-29 1974-10-29 W Rochester Choker knob for logging cables and method of making same
US4102497A (en) * 1976-08-04 1978-07-25 Hanlon & Wilson Company Rail bond
US20100219256A1 (en) * 2009-02-27 2010-09-02 Williams Mark A Magnetic rail bond
US20180111632A1 (en) * 2016-10-24 2018-04-26 Alstom Transport Technologies Magnetic rail shunt with variable resistor
US10189372B2 (en) * 2015-12-08 2019-01-29 Youxue Qui Bond pin assembly for connecting connection cables

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US449721A (en) * 1891-04-07 Electrjc connector
US517884A (en) * 1894-04-10 Rail connection
US562107A (en) * 1896-06-16 Electric rail-bond
US609252A (en) * 1898-08-16 Electric rail-bond
US697890A (en) * 1900-07-21 1902-04-15 Benton C Rowell Rail-bond.
US843763A (en) * 1901-09-11 1907-02-12 Gen Electric Connector or terminal for electrical conductors.
US1023340A (en) * 1911-05-05 1912-04-16 Charles R Sturdevant Splice-bar and rail-bond.
US1643110A (en) * 1924-08-11 1927-09-20 American Cable Co Inc Attachment for wire rope and process for producing the same
US1865723A (en) * 1929-04-02 1932-07-05 Ohio Brass Co Rail bond
US1886086A (en) * 1927-09-29 1932-11-01 American Brass Co Connecter for cables
US1909344A (en) * 1930-02-24 1933-05-16 Roeblings John A Sons Co Attachment for wire ropes
US2357733A (en) * 1942-02-03 1944-09-05 Columbus Mckinnon Chain Corp Anchor for flexible cables and a method of securing the same thereto

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US449721A (en) * 1891-04-07 Electrjc connector
US517884A (en) * 1894-04-10 Rail connection
US562107A (en) * 1896-06-16 Electric rail-bond
US609252A (en) * 1898-08-16 Electric rail-bond
US697890A (en) * 1900-07-21 1902-04-15 Benton C Rowell Rail-bond.
US843763A (en) * 1901-09-11 1907-02-12 Gen Electric Connector or terminal for electrical conductors.
US1023340A (en) * 1911-05-05 1912-04-16 Charles R Sturdevant Splice-bar and rail-bond.
US1643110A (en) * 1924-08-11 1927-09-20 American Cable Co Inc Attachment for wire rope and process for producing the same
US1886086A (en) * 1927-09-29 1932-11-01 American Brass Co Connecter for cables
US1865723A (en) * 1929-04-02 1932-07-05 Ohio Brass Co Rail bond
US1909344A (en) * 1930-02-24 1933-05-16 Roeblings John A Sons Co Attachment for wire ropes
US2357733A (en) * 1942-02-03 1944-09-05 Columbus Mckinnon Chain Corp Anchor for flexible cables and a method of securing the same thereto

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844601A (en) * 1969-07-29 1974-10-29 W Rochester Choker knob for logging cables and method of making same
US4102497A (en) * 1976-08-04 1978-07-25 Hanlon & Wilson Company Rail bond
US20100219256A1 (en) * 2009-02-27 2010-09-02 Williams Mark A Magnetic rail bond
US9452688B2 (en) 2009-02-27 2016-09-27 Mark A. Williams Magnetic rail bond
US10189372B2 (en) * 2015-12-08 2019-01-29 Youxue Qui Bond pin assembly for connecting connection cables
US20180111632A1 (en) * 2016-10-24 2018-04-26 Alstom Transport Technologies Magnetic rail shunt with variable resistor
US10822003B2 (en) * 2016-10-24 2020-11-03 Alstom Transport Technologies Magnetic rail shunt with variable resistor

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