Patent ID: 9748746
Date: 2017-08-29
CPC Classifications: B65H,H02G

Claim:
1. A feeding sheave assembly for use at the open end of a conduit into which a wire or cable is to be fed during an operation involving the pulling of the wire or cable through the conduit wherein the conduit end is encircled by an edge, the feeding sheave assembly comprising: an elongated sleeve portion having opposite first and second ends and a hollow interior and which is sized to be accepted by the hollow interior of the conduit when the sleeve portion is inserted endwise into the open end of the conduit; means defining an abutment surface at the first end of the sleeve portion so that when the sleeve portion is inserted second-end first into the open end of the conduit toward a fully-inserted condition within the hollow interior of the conduit, the abutment surface is moved into abutting engagement with the open end of the conduit and thereby prevents further insertion of the sleeve portion into the conduit beyond the fully-inserted condition; a sheave which is rotatably mounted upon the abutment surface-defining means and wherein the sheave has a peripheral roller surface across which the wire or cable is routed during a wire or cable-pulling operation; and the sheave is disposed in such a relationship with respect to the sleeve portion so that when the sleeve portion is positioned in the fully-inserted condition within the hollow interior of the conduit, a wire or cable which is subsequently routed across the roller surface of the sheave and directed into the open end of the conduit is prevented from engaging the edge which encircles the open end of the conduit; and means for releasably locking the sleeve portion in a stationary relationship with respect to the conduit when the sleeve portion is positioned in the fully-inserted condition within the hollow interior of the conduit; and wherein the sleeve portion has a length which extends between the first and second ends and is substantially C-shaped in cross section along the entire length of the sleeve portion so as to provide an access slot which extends between the first and second ends and through which the wire or cable can be accepted by or removed from the sleeve portion when the sleeve portion is manipulated sidewise onto a length of the wire or cable or is moved sidewise off of the length of the wire or cable.