G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/44 (2006.01) H02G 1/08 (2006.01)
Patent
CA 2274640
A cable (5) is inserted, by way of a free end (2.1), into a tube (2) wound around a tube reel (1) which is fixed, with its winding axis (y) vertical, onto a carrier (7). The carrier with the tube reel is subjected to a periodical movement having a vertical component and a longitudinal component. The vertical component is a vertical oscillation having a period (P) and an amplitude (Av = gP2/32) for an, at any rate approximately, "free-fall" movement during part of each period, preferably during half a period. The longitudinal component is an oscillating rotation around the vertical winding axis of the tube reel having the same period (P) and an amplitude (AL). The "free-fall" movement is preferably commenced when the rotational direction of the oscillating rotation is reversed and becomes backward, as opposed to the insertion direction of the cable. Three embodiments of a device are described.
On fait passer un câble (5) par une extrémité libre (2.1) pour l'insérer dans un tuyau (2) enroulé autour d'un dévidoir tubulaire (1) fixé sur un support (7) dont l'axe d'enroulement est en position verticale. L'ensemble support-dévidoir tubulaire est soumis à un mouvement périodique à composante verticale et longitudinale. La composante verticale est une oscillation verticale de période (P) et amplitude (A¿v? = gP?2¿/32) représentant un mouvement de "chute libre" approximative en tout cas, pendant une partie de chaque période, mais de préférence pendant la deuxième période. La composante longitudinale est une rotation oscillante autour de l'axe d'enroulement vertical du dévidoir tubulaire de même période (P) et d'amplitude (A¿L?). Le mouvement de "chute libre" est, de préférence, amorcé au moment où le sens rotationnel de la rotation oscillante est inversé et s'inverse, par opposition au sens d'insertion du câble. On décrit trois modes de réalisation du dispositif.
Griffioen Willem
Plumettaz Gerard
Fetherstonhaugh & Co.
Koninklijke Kpn N.v.
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