Apparatus for protecting overhead cables

Details Apparatus for protecting overhead cables Apparatus for protecting overhead cables

1975-12-29

1977-08-23

Spar, Robert J.

Traversing hoists

Overhead

Cable

212139P, E02F 332

Patent

active

040434699

ABSTRACT:
Apparatus for use in conjunction with material handling equipment to provide for protection of overhead cables from damage by such material handling equipment being operated thereunder is disclosed. Material handling equipment having pivotably connected arms and hydraulic means for causing relative motion between such arms about their pivot point is provided with a substantially continuous bumper comprising at least two guard members. One end of a first guard member is attached to one arm and one end of a second guard member is attached to the arm pivotably connected to the first arm. A sheath slidably receiving the second end of one guard member is provided to provide for bumper length adjustment as the arms pivot. The second end of the other guard member is so disposed to complete a substantially continuous bumper. Various modes of attachment are employed in several embodiments of this invention.

REFERENCES:
patent: 2263978 (1941-11-01), Branovic et al.
patent: 2989194 (1961-06-01), Thomas
patent: 3187913 (1965-06-01), Strader et al.
patent: 3570691 (1971-03-01), Guinot
patent: 3796335 (1974-03-01), Smith et al.
patent: 3934679 (1976-01-01), Lieptz

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