US2359256A - Clamp and contact terminal - Google Patents

Clamp and contact terminal Download PDF

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Publication number
US2359256A
US2359256A US463384A US46338442A US2359256A US 2359256 A US2359256 A US 2359256A US 463384 A US463384 A US 463384A US 46338442 A US46338442 A US 46338442A US 2359256 A US2359256 A US 2359256A
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United States
Prior art keywords
screws
clamp
block
pair
contact terminal
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Expired - Lifetime
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US463384A
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Cecil W Spence
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Individual
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws

Definitions

  • My invention relates to electric circuits, particularly of the temporary type, and has among its objects and advantages the provision of an improved clamp and terminal.
  • Figure 1 is a side View
  • Figure 2 is a sectional View substantially along the rline 2 2 of Figure 1.
  • I make use of a fiber block I provided with two parallel grooves I2 for partial reception of feeder lines I4. These lines are clamped to the block II) through the medium of a wooden block I6 and a bolt I8 which passes through aligned openings in theblocks I0 and I6.
  • Two contact screws 20 are threaded in the block I0 and are provided with pointed ends 22 adapted to penetrate the insulation on the feeder lines I4 to secure good electrical connections.
  • the heads 24 of the screws 2D are housed in bores 26 in the block I0 and are of the slotted type for coaction with a screw driver.
  • Openings 28 are provided in the block I0 for the reception of load wires 3B, which wires are clamped against the screws 20 by screws 32 threaded in the block I0. Openings 34 are provided for the heads 36 of the screws 32 and these heads are slotted for the reception of a screw driver.
  • My clamp and terminal structure facilitates the erection of temporary wiring on large construction jobs.
  • a number of clamps and terminal devices may be associated vwith the feeder lines I4, and the devices may be quickly and easily adjusted along the lines by merely unloosening the screws 20.
  • the load wires 30 are held in rm engagement with the screws 20 so as to establish good electrical connections.
  • the feeder lines I4 are effectively supported in predetermined positions for coaction with the screws 20 through mere tightening of the bolt I8.
  • the invention eliminates the necessity of taping and peeling feeder lines and greatly prolongs the life of the feeder lines.
  • a, pair of blocks of insulating material means clampingly holding the blocks against a pair of conductors extended therebetween, a pair of conducting screws threaded transversely through one of said blocks having electrical connection with the respective conductors, said screw carrying block having transverse bores disposed to receive conductors in contacting relation with the screws, and a second pair of screws threaded in the last mentioned block disposed to releasably maintain the last mentioned pair of conductors in contact with the rst mentioned screws.
  • an elongated body forming block of insulating material an elongated clamping block of insulated material mounted parallel with the body block, each of said blocks having aligned bores transversely through their medial portions, a clamping bolt extended through the aligned bores having a head at one end and a nut at its opposite end.
  • said bolt being adapted to clamp the blocks upon a pair of conducting feeder wires extending transversely therebetween at each side and perpendicular to the bolt, a pair of main connecting screws of conducting material fitted in interiorly threaded bores in the body block parallel with the bolt and making detachable electric connection with the respective feeders, said body block being provided with a pair of transverse bores perpendicular to and intersecting the respective main screw receiving bores adapted to receive branch conducting wires in contacting relation with said screws, said body block also having interiorly threaded bores opening through its ends intersecting the wire receiving bores, and a pair of auxiliary screws threadedly engaging said end bores, said auxiliary screws being disposed perpendicularly to the branch wires to engage and hold the latter in contact with the main conducting screws.

Description

sept.' ze, 1944. C. w. SPENCE 2,359,256
CLAMP AND CONTACT TERMINAL l Filed Oct. 26, 1942 A i: le 'Qg/ 12 12 f, NNN
ecyl Wplyaence/ IN V EN TOR.
ATTORNEYS Patented Sept. 26, 1944 UNITED STATES PATENT OFFICE CLAMP AND CONTACT TERMINAL Cecil W. Spence, Beaumont, Tex.
Application October 26, 1942, Serial No. 463,384
2 Claims.
My invention relates to electric circuits, particularly of the temporary type, and has among its objects and advantages the provision of an improved clamp and terminal.
In the accompanying drawing:
Figure 1 is a side View; and
Figure 2 is a sectional View substantially along the rline 2 2 of Figure 1.
In the embodiment selected for illustration, I make use of a fiber block I provided with two parallel grooves I2 for partial reception of feeder lines I4. These lines are clamped to the block II) through the medium of a wooden block I6 and a bolt I8 which passes through aligned openings in theblocks I0 and I6.
Two contact screws 20 are threaded in the block I0 and are provided with pointed ends 22 adapted to penetrate the insulation on the feeder lines I4 to secure good electrical connections. The heads 24 of the screws 2D are housed in bores 26 in the block I0 and are of the slotted type for coaction with a screw driver.
Two openings 28 are provided in the block I0 for the reception of load wires 3B, which wires are clamped against the screws 20 by screws 32 threaded in the block I0. Openings 34 are provided for the heads 36 of the screws 32 and these heads are slotted for the reception of a screw driver.
My clamp and terminal structure facilitates the erection of temporary wiring on large construction jobs. A number of clamps and terminal devices may be associated vwith the feeder lines I4, and the devices may be quickly and easily adjusted along the lines by merely unloosening the screws 20. The load wires 30 are held in rm engagement with the screws 20 so as to establish good electrical connections. Because of the grooves I2, the feeder lines I4 are effectively supported in predetermined positions for coaction with the screws 20 through mere tightening of the bolt I8. The invention eliminates the necessity of taping and peeling feeder lines and greatly prolongs the life of the feeder lines.
Without further elaboration, the foregoing will so fully illustrate my invention, that others may,
by applying current knowledge, readily adapt the same for use under various conditions of service.
I claim:
l. In a conductor connection, a, pair of blocks of insulating material, means clampingly holding the blocks against a pair of conductors extended therebetween, a pair of conducting screws threaded transversely through one of said blocks having electrical connection with the respective conductors, said screw carrying block having transverse bores disposed to receive conductors in contacting relation with the screws, and a second pair of screws threaded in the last mentioned block disposed to releasably maintain the last mentioned pair of conductors in contact with the rst mentioned screws.
2, In a conductor connection, an elongated body forming block of insulating material, an elongated clamping block of insulated material mounted parallel with the body block, each of said blocks having aligned bores transversely through their medial portions, a clamping bolt extended through the aligned bores having a head at one end and a nut at its opposite end. said bolt being adapted to clamp the blocks upon a pair of conducting feeder wires extending transversely therebetween at each side and perpendicular to the bolt, a pair of main connecting screws of conducting material fitted in interiorly threaded bores in the body block parallel with the bolt and making detachable electric connection with the respective feeders, said body block being provided with a pair of transverse bores perpendicular to and intersecting the respective main screw receiving bores adapted to receive branch conducting wires in contacting relation with said screws, said body block also having interiorly threaded bores opening through its ends intersecting the wire receiving bores, and a pair of auxiliary screws threadedly engaging said end bores, said auxiliary screws being disposed perpendicularly to the branch wires to engage and hold the latter in contact with the main conducting screws.
CECIL W. SPENCE.
US463384A 1942-10-26 1942-10-26 Clamp and contact terminal Expired - Lifetime US2359256A (en)

Priority Applications (1)

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US463384A US2359256A (en) 1942-10-26 1942-10-26 Clamp and contact terminal

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677108A (en) * 1950-03-22 1954-04-27 Rca Corp Bridging connection between a branch cable and an unbroken coaxial cable
US3731258A (en) * 1971-09-22 1973-05-01 Int Standard Electric Corp Underwater connection
US20200059013A1 (en) * 2018-08-20 2020-02-20 Hubbell Incorporated Insulation piercing connector
US11033000B2 (en) * 2017-05-08 2021-06-15 ES Robbins Corporation Electric fence connection system
US11605906B2 (en) 2019-01-18 2023-03-14 Hubbell Incorporated Compression connectors with insulating cover

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677108A (en) * 1950-03-22 1954-04-27 Rca Corp Bridging connection between a branch cable and an unbroken coaxial cable
US3731258A (en) * 1971-09-22 1973-05-01 Int Standard Electric Corp Underwater connection
US11033000B2 (en) * 2017-05-08 2021-06-15 ES Robbins Corporation Electric fence connection system
US20200059013A1 (en) * 2018-08-20 2020-02-20 Hubbell Incorporated Insulation piercing connector
US11264736B2 (en) * 2018-08-20 2022-03-01 Hubbell Incorporated Insulation piercing connector
US11605906B2 (en) 2019-01-18 2023-03-14 Hubbell Incorporated Compression connectors with insulating cover

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