US919571A - Clamping-ear for trolley-wires. - Google Patents

Clamping-ear for trolley-wires. Download PDF

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Publication number
US919571A
US919571A US39670207A US1907396702A US919571A US 919571 A US919571 A US 919571A US 39670207 A US39670207 A US 39670207A US 1907396702 A US1907396702 A US 1907396702A US 919571 A US919571 A US 919571A
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United States
Prior art keywords
trolley
jaws
ear
clamping
holder
Prior art date
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
US39670207A
Inventor
Frank Guillot
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US39670207A priority Critical patent/US919571A/en
Application granted granted Critical
Publication of US919571A publication Critical patent/US919571A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/12—Trolley lines; Accessories therefor
    • B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
    • B60M1/24—Clamps; Splicers; Anchor tips
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S256/00—Fences
    • Y10S256/03—Wire clamp

Definitions

  • This invention relates to overhead electric railways, and its object is to provide an improved clamping ear or clip for suspending an overhead conductor from a trolley-pole arm, span wire or messenger wire.
  • the ear comprises two aws adapted to be slid into a holder in which they have a fulcrum bearing, so that when spread apart at their upper edges by a wedge their lower edges will engage the sides of the trolley wire.
  • Figure 1 is a side elevation of one embodiment of the invention
  • Fig. 2 is an end view of the same
  • Fig. 3 is a longitudinal section
  • Fig. 1 is a perspective view of one of the clamping jaws.
  • the body portion or holder 1 is tubular, being substantially cylindrical and open on its lower side, forming a narrow longi tudinal mouth.
  • the body is provided with suitable means for suspending it, such for example as the fork 2 adapted to receive a rod 3, to which it can be secured by rivets 1.
  • the two clamping-jaws 5 are slightly longer than the body 1. They have straight semi-circular upper portions or rounded enlargements 6 adapted to lit the inside of the holder when they are slid into it lengthwise. Their middle portions 7 are thin, to correspond with the narrow longitudinal mouth of the holder.
  • the lower edges 8 of the jaws are hooked to enable them to engage in the grooves in the sides of the trolley wire 9.
  • the upper edges 10 of the jaws are rabbeted to aiford supporting shoulders 11 for a long slightly tapering and preferably square wedge 12.
  • At one end of each jaw is a rib 13.
  • the jaws are slid into the holder lengthwise, one from each end until the ribs 13 abut against the end of the holder.
  • the hooked edges 8 are spread apart and slipped down over the trolley wire until they engage with its grooves.
  • the wedge 12 is then driven in between the upper edges 10, forcing them apart and bringing the rounded Specification of Letters Patent.
  • This structure is exceedingly simple to make, since the holder and jaws can be cast. It can be quickly assembled, and set up in place by merely driving the wedge and bending over its end.
  • the structure is strong and durable, and holds the trolley wire firmly; and yet it can be readily disengaged therefrom when necessary.
  • a clamping ear for trolley wires comprising a holder having two spaced fulcrums, two jaws disposed between and respectively engaging said tulcrulns, and means for tilting said jaws upon said tulcrums into engagement with the trolley wire.
  • a clamping ear for trolley wires comprising a tubular holder having an open mouth along its under side, two jaws adapted to slide lengthwise into said holder having enlarged upper portions to engage therein, and means for forcing apart the upper edges of said jaws.
  • a clamping ear for trolley wires comprising a tubular holder having a narrow open mouth extending along its lower side, two jaws having hooked lower edges and rounded enlargements along their upper edges to iit into said holder, and a wedge adapted to force apart the upper edges of said jaws.
  • a clamping ear for trolley wires comprising a tubular holder having a narrow open mouth extending along its lower side, two jaws each having a rib at one end and adapted to pivot on the lips of said month, shoulders along the upper edges of said jaws, and a wedge supported on said shoul ders.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Description

F. GUILLOT.
GLAMPING- EAR FOR TROLLBY WIRES. APPLICATION mum 001.10, 1907.
/WiZtness:;: m
Patented Apr. 27, 1909.
Inventor Frank Gui! lot.
1H: NORRIS PETERS 0a., wAsnmcmu, D. c.
UNITED STATES PATENT OFFICE.
FRANK GUILLOT, OF SCHENEOTADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
CLAIJIPING-EAR FOR TROLLEY-WIRES.
To all whom it may concern:
Be it known that I, FRANK GUILLO'r, a citizen of the United States, residing at Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Clamping-Ears for Trolleyires, of which the following is a specification.
This invention relates to overhead electric railways, and its object is to provide an improved clamping ear or clip for suspending an overhead conductor from a trolley-pole arm, span wire or messenger wire. The ear comprises two aws adapted to be slid into a holder in which they have a fulcrum bearing, so that when spread apart at their upper edges by a wedge their lower edges will engage the sides of the trolley wire.
In the accompanying drawing, Figure 1 is a side elevation of one embodiment of the invention; Fig. 2 is an end view of the same; Fig. 3 is a longitudinal section; and Fig. 1 is a perspective view of one of the clamping jaws.
The body portion or holder 1 is tubular, being substantially cylindrical and open on its lower side, forming a narrow longi tudinal mouth. The body is provided with suitable means for suspending it, such for example as the fork 2 adapted to receive a rod 3, to which it can be secured by rivets 1. The two clamping-jaws 5 are slightly longer than the body 1. They have straight semi-circular upper portions or rounded enlargements 6 adapted to lit the inside of the holder when they are slid into it lengthwise. Their middle portions 7 are thin, to correspond with the narrow longitudinal mouth of the holder. The lower edges 8 of the jaws are hooked to enable them to engage in the grooves in the sides of the trolley wire 9.
I The upper edges 10 of the jaws are rabbeted to aiford supporting shoulders 11 for a long slightly tapering and preferably square wedge 12. At one end of each jaw is a rib 13. The jaws are slid into the holder lengthwise, one from each end until the ribs 13 abut against the end of the holder. The hooked edges 8 are spread apart and slipped down over the trolley wire until they engage with its grooves. The wedge 12 is then driven in between the upper edges 10, forcing them apart and bringing the rounded Specification of Letters Patent.
Application filed October 10, 1907.
Patented April 27, 1909.
Serial No. 396,702.
enlargements 6 into close contact with the walls of the holder, and causing the lower edges to grip the wire tightly; the lips 14 ot' the mouth serving as fulcrums on which the jaws pivot along their middle portions. One or both ends of the wedge can then be bent to keep it from slipping out.
This structure is exceedingly simple to make, since the holder and jaws can be cast. It can be quickly assembled, and set up in place by merely driving the wedge and bending over its end. The structure is strong and durable, and holds the trolley wire firmly; and yet it can be readily disengaged therefrom when necessary.
\Vhat I claim as new and desire to secure by Letters Patent of the United States, is,
1. A clamping ear for trolley wires comprising a holder having two spaced fulcrums, two jaws disposed between and respectively engaging said tulcrulns, and means for tilting said jaws upon said tulcrums into engagement with the trolley wire.
2. A clamping ear for trolley wires comprising a tubular holder having an open mouth along its under side, two jaws adapted to slide lengthwise into said holder having enlarged upper portions to engage therein, and means for forcing apart the upper edges of said jaws.
3. A clamping ear for trolley wires comprising a tubular holder having a narrow open mouth extending along its lower side, two jaws having hooked lower edges and rounded enlargements along their upper edges to iit into said holder, and a wedge adapted to force apart the upper edges of said jaws.
1. A clamping ear for trolley wires comprising a tubular holder having a narrow open mouth extending along its lower side, two jaws each having a rib at one end and adapted to pivot on the lips of said month, shoulders along the upper edges of said jaws, and a wedge supported on said shoul ders.
In witness whereof, I have hereunto set my hand this 8th day of October, 1907.
FRANK GUILLOT.
Witnesses BENJAMIN B. HULL, HELEN ORFORD.
US39670207A 1907-10-10 1907-10-10 Clamping-ear for trolley-wires. Expired - Lifetime US919571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US39670207A US919571A (en) 1907-10-10 1907-10-10 Clamping-ear for trolley-wires.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39670207A US919571A (en) 1907-10-10 1907-10-10 Clamping-ear for trolley-wires.

Publications (1)

Publication Number Publication Date
US919571A true US919571A (en) 1909-04-27

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US39670207A Expired - Lifetime US919571A (en) 1907-10-10 1907-10-10 Clamping-ear for trolley-wires.

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