US1979013A - Rolling of stranded electrical conductors - Google Patents

Rolling of stranded electrical conductors Download PDF

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Publication number
US1979013A
US1979013A US668640A US66864033A US1979013A US 1979013 A US1979013 A US 1979013A US 668640 A US668640 A US 668640A US 66864033 A US66864033 A US 66864033A US 1979013 A US1979013 A US 1979013A
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US
United States
Prior art keywords
rolls
conductor
pairs
rolling
pair
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
US668640A
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English (en)
Inventor
Rohs Adolf
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk 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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Application granted granted Critical
Publication of US1979013A publication Critical patent/US1979013A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices

Definitions

  • the rolled conductors are twisted with a shorter pitch than that which would be required for the stranding of the insulated conductors into a multi-core cable in the case of soft material which has no tendency to spring back.
  • This may be attained by the provision of a second pair of rolls beyond the actual justed that the rolled conductor, in the interval between the actual pressing rolls and the second pair of rolls, is positively twisted with a shorter pitch than that resulting from the ratio of a single revolution of the roller casing of the first pair of rolls around the axis of the conductor to the delivery speed of the conductor caused by the take-oi drum of the machine.
  • the conductor is thereby stressed slightly beyond its elastic limit, thus losing its tendency to spring back so that the conductor no longer tends to twist, being entirely free from any tension and thus enabling the conductors to be easily laid to form the complete cable.
  • a third pair of rolls may be provided beyond pressing rolls.
  • the second pair of rolls is so ad-- the-second pair, in order in press again into the right position the wires of the conductor which, during the passage through the first pair of rolls, have been deformed and which have been slight- 1y canted by the shorter twisting of the whole of the conductor between the first and the second pair of rolls.
  • use may be made simply of pairs of guiding rollers formed with corresponding grooves.
  • the two last pairs of rolls, which rotate with the same speed as the first pair of rolls around the longitudinal axis of the conductor to be rolled may be mounted on separate stands and be provided with separate drives. Further, all the three pairs of rolls or only individual pairs may be provided with one drive for the rolls.
  • Figs. 1-4 of the accompanying drawing illustrate, by way of example, two different rolling arrangements according to the present invention for compensating the tensions to which the tendency to spring back is to be attributed and which are caused by the rolling of a conductor
  • FIG. 1 and 2 showing in elevation and plan view one form of construction and Figs. 3 and 4 a sectional elevation and a plan view of the second form of construction.
  • 1, 2 and 3 are three pairs of rolls, the housings 4, 5 and 6 of which are mounted with their hollow shafts in the stands 7, 8 and 9 respectively.
  • the drive of the roll housings is effected through the intermediary of the pinions 10, 11 and 12 which are secured to the hollow shafts of the corresponding roll housings. All the three pairs of rolls nm at one and the same speed around the axis of the conductor, being driven from a suitable shaft of the machine in which the arrangement of rolls is embodied.
  • the three rolling devices are secured to a table 13.
  • the pairs of rolls 1, 2 and 3 are rotatably mounted in corresponding roll housings 4, 5 and 6, the rotation taking place around the longitudinal axis of .the conductor to be rolled and the pairs of rolls being capable of being fixed in position, so that the grooves 14, 15 and 16 provided in the pairs of rolls can be easily set to the pitch of the conductor.
  • the pairs of rolls 1 and 2 are so adjusted that wires of the conductor which, during the passage through the first pair of rolls, have been deformed and which have been slightly canted along the shorter pitch between the-pairs of rolls 1 and 2.
  • this pair of rolls 3 can be easily adapted to the pitch of the conductor.
  • the three pairs of rolls 1, 2 and 3 can be adjusted in their relative positions by a displacement of the stands 7, 8 and 9 along the table 13.

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  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Wire Processing (AREA)
US668640A 1932-05-05 1933-04-29 Rolling of stranded electrical conductors Expired - Lifetime US1979013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS1979013X 1932-05-05

Publications (1)

Publication Number Publication Date
US1979013A true US1979013A (en) 1934-10-30

Family

ID=5458556

Family Applications (1)

Application Number Title Priority Date Filing Date
US668640A Expired - Lifetime US1979013A (en) 1932-05-05 1933-04-29 Rolling of stranded electrical conductors

Country Status (2)

Country Link
US (1) US1979013A (en))
NL (1) NL39772C (en))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090190A (en) * 1957-03-30 1963-05-21 Michelin & Cie Elastic cables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090190A (en) * 1957-03-30 1963-05-21 Michelin & Cie Elastic cables

Also Published As

Publication number Publication date
NL39772C (en))

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