US3833971A - Cable clamps - Google Patents

Cable clamps Download PDF

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Publication number
US3833971A
US3833971A US00289319A US28931972A US3833971A US 3833971 A US3833971 A US 3833971A US 00289319 A US00289319 A US 00289319A US 28931972 A US28931972 A US 28931972A US 3833971 A US3833971 A US 3833971A
Authority
US
United States
Prior art keywords
clamp means
swingable
stationary
lining
stationary clamp
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
US00289319A
Other languages
English (en)
Inventor
R Grasman
W Hell
W Mullner
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.)
Waagner Biro AG
Original Assignee
Waagner Biro AG
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 Waagner Biro AG filed Critical Waagner Biro AG
Application granted granted Critical
Publication of US3833971A publication Critical patent/US3833971A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
    • F16G11/044—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord
    • F16G11/048—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord by moving a surface into the cable
    • 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
    • Y10T24/3936—Pivoted part
    • 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.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44068—Clasp, clip, support-clamp, or required component thereof having gripping member actuated by fluid force

Definitions

  • the cable clamp includes stationary and swingable clamp assemblies where the swingable assembly is connected to the stationary assembly for swinging movement with respect thereto between clamping and unclamping positions.
  • the stationary assembly is formed asja power cylinder for a piston guided for movement toward the swingable assembly and urging a lining which directly engages the cable toward a corresponding lining carried by the swingable assembly.
  • the clamp includes a stationary clamp means and a swingable clamp means connected to the stationary clamp means for swinging movement with respect thereto between clamping and unclamping positions.
  • These stationary and swingable clamp means respectively have linings for respectively engaging a cable at opposed positions of the latter.
  • the stationary clamp means has the form of a power cylinder and includes a piston which is movable toward the swingable clamp means for urging the lining of the stationary clamp means toward the lining of the swingable clamp means.
  • the cable clamp illustrated therein includes a lower stationary clamp means 1 which has the form of a power cylinder 8 and which is pivotally connected with a swingable clamp means 2.
  • the power cylinder 8 which forms part of the stationary clamp means accommodates in its interior a piston 3 capable of pressing a lower clamp lining 4 of the stationary clamp means 1 toward a clamp lining of the swingable clamp means 2.
  • the stationary clamp means 1 accommodates in its hollow interior a guide member 9 which is slidably guided for movement toward and away from the lining 10 when a cable is clamped, this guide member 9 being connected to the piston 3 to be moved thereby.
  • the fluid under pressure which enters the power cylinder 8 may be a liquid in the case of hydraulic operation or compressed air in the case of pneumatic operation.
  • the upper clamp lining 10 is directly carried by the swingable clamp means 2 which is swingable on a pin 11 carried by the stationary clamp means 1.
  • a fluid-pressure means is provided to swing the clamp means 2 with respect to the pin 11.
  • This fluidpressure means includes a power-cylinder 7 swingably connected by the pin 12 to the stationary clamp means 1 and a piston shiftable in the cylinder 7 and having a piston rod pivotally connected by a pin 13 to the swingable clamp means 2.
  • a releasable lock means 5 is provided for releasably locking the swingable clamp means 2 in the illustrated position when a cable is clamped.
  • This releasable locking means includes the lock lever 5 which isswingable .on a pin 14 carried by the stationary clamp means 1.
  • fluid-pressure means 6 has a power cylinder pivotally connected at one end to the stationary clamp means 1, this cylinder accommodating a piston whose piston rod is pivotally connected to the lock lever 5 on the side of pin 14 opposite from the locking projection at the top of the lever 5 which overlaps the left hand portion of the swingable clamp means 2, as viewed in the drawing, to maintain the clamp means 2 in its locked operating position.
  • the piston 3 is constructed as a double-acting piston and has lower and'upper chambers separated by a flange 17 and respectively communicating with the bores 15 and 16 through which a pressure fluid such as oil or air is adapted to be introduced.
  • a pressure fluid such as oil or air
  • the chamber above flange 17 may be vented through the bore 16 and the lining 4 will be pressed toward the lining 10.
  • the chamber beneath flange 17 is vented through the bore 15 so that the piston 3 will be retracted.
  • the guide piece 9 is fixed to the piston 3 by way of a bolt 18.
  • the lining 10 of the swingable clamp means and the lining 4 of the stationary clamp means respectively have inner concave surfaces opposed to each other and each extending approximately around a given axis which is perpendicular to the axis of the power cylinder 8.
  • the stationary clamp means 1 has a pair of opposed walls part of which form part of the power cylinder 8, with these opposed walls extending parallel to the axis of the cylinder 8. In its clamping position the swingable clamp means 2 has opposed portions which are respectively in line with the opposed walls of the stationary clamp means 1, these opposedwalls being shown at the left and right in the drawing.
  • the lock means 5 engages the left portion of the swingable clamp means 2 which is in line with the left wall of the stationary clamp means while the pivot means 11 is operatively connected with the right portion of the swingable clamp means 2 which is in line with the right wall of the stationary clamp means 1, as viewed in the drawingi
  • the force applied to the piston 3 is substantially evenly distributed between the opposed walls inasmuch as the moment arms are substantially equal, and in addition these moment arms are necessarily extremely short, because the opposed left and right portions of the swingable clamp means 2 are respectively in line with the opposed walls of the stationary clamp means 1, when the swingable clamp means 2 is in its illustrated clamping position, and as a result it is possible for the structure of the invention to withstand extremely large forces as are required for purposessuch as cable stretching.
  • stationary clamp means having a lining adapted to engage a cable or the like
  • swingable clamp means swingably connected to said stationary clamp means for movement to a clamping position and having a lining adapted to engage a cable or the like at a part thereof diametrically opposed to the lining of said stationary clamp means, said linings respectively having inner concave surfaces each extending approximately 180 around a given axis when said swingable clamp means is in said clamping position thereof
  • said stationary clamp means having in part the construction of a power cylinder and including a pair of opposed walls forming part of said cylinder and extending parallel to and situated at equal distances on opposite sides of the axis of said cylinder, said cylinder axis being perpendicular to said given axis
  • said stationary clamp means accommodating in said cylinder a slidable piston which is operatively connected with said lining of said stationary clamp means for urging the latter lining along
  • said stationary clamp means includes a guide member carrying said lining of said stationary clamp means and guided by said opposed walls of said stationary clamp means for movement toward and away from said lining of said swingable clamp means, when said swingable clamp means is in said clamping position thereof, said piston being operatively connected to said guide member for moving the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
US00289319A 1971-09-17 1972-09-15 Cable clamps Expired - Lifetime US3833971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT811971A AT307178B (de) 1971-09-17 1971-09-17 Seilklemme

Publications (1)

Publication Number Publication Date
US3833971A true US3833971A (en) 1974-09-10

Family

ID=3602720

Family Applications (1)

Application Number Title Priority Date Filing Date
US00289319A Expired - Lifetime US3833971A (en) 1971-09-17 1972-09-15 Cable clamps

Country Status (4)

Country Link
US (1) US3833971A (de)
AT (1) AT307178B (de)
DE (1) DE2244675A1 (de)
FR (1) FR2154051A5 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898974A (en) * 1974-08-21 1975-08-12 Elmer L Keck Archery bowstring release
US4035012A (en) * 1975-12-31 1977-07-12 Guier William C Dual elevators
US5981879A (en) * 1997-10-17 1999-11-09 New Line Products, Llc Insulating support device for electrical conductor
US20180291981A1 (en) * 2017-04-10 2018-10-11 National Oilwell Varco, L.P. Deadline anchor pigtail clamp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US436967A (en) * 1890-09-23 Grip or clamp
US1842026A (en) * 1929-08-22 1932-01-19 Ingersoll Rand Co Clamp
US2615682A (en) * 1951-03-24 1952-10-28 Standard Oil Dev Co Power-operated slidable jaw pipe tong
US2649283A (en) * 1947-12-30 1953-08-18 Byron Jackson Co Spinning and make-up tong
US2695189A (en) * 1950-06-10 1954-11-23 Byron Jackson Co Well pipe elevator
US2857824A (en) * 1955-12-12 1958-10-28 Brown Co Apparatus for dewatering fibrous tubing
US2985455A (en) * 1960-03-07 1961-05-23 Vernon R Powell Tube gripping mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US436967A (en) * 1890-09-23 Grip or clamp
US1842026A (en) * 1929-08-22 1932-01-19 Ingersoll Rand Co Clamp
US2649283A (en) * 1947-12-30 1953-08-18 Byron Jackson Co Spinning and make-up tong
US2695189A (en) * 1950-06-10 1954-11-23 Byron Jackson Co Well pipe elevator
US2615682A (en) * 1951-03-24 1952-10-28 Standard Oil Dev Co Power-operated slidable jaw pipe tong
US2857824A (en) * 1955-12-12 1958-10-28 Brown Co Apparatus for dewatering fibrous tubing
US2985455A (en) * 1960-03-07 1961-05-23 Vernon R Powell Tube gripping mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898974A (en) * 1974-08-21 1975-08-12 Elmer L Keck Archery bowstring release
US4035012A (en) * 1975-12-31 1977-07-12 Guier William C Dual elevators
USRE29995E (en) * 1975-12-31 1979-05-15 Dual elevators
US5981879A (en) * 1997-10-17 1999-11-09 New Line Products, Llc Insulating support device for electrical conductor
US20180291981A1 (en) * 2017-04-10 2018-10-11 National Oilwell Varco, L.P. Deadline anchor pigtail clamp
US10670112B2 (en) * 2017-04-10 2020-06-02 National Oilwell Varco, L.P. Deadline anchor pigtail clamp

Also Published As

Publication number Publication date
DE2244675A1 (de) 1973-03-22
FR2154051A5 (de) 1973-05-04
AT307178B (de) 1973-05-10

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