Cable guide means for a cable drum
AssigneeGardner-Denver Company
InventorHarry Boucher
Life of this patent
Estimating the term…
Abstract
A cable guide means comprised of spaced spools having spaced grooves thereon for guiding a cable to and from a cable driven drum so that spaced marginal lengths of the cable do not wear against one another as the cable changes directions in order to be rove about the drum.
Claims7
In a cable driven drum rotatably mounted to drum support structure by a drum shaft and rotated by a cable having opposite moving marginal cable lengths spaced from a central marginal portion which is rove about the drum, the combination with said cable and drum of a cable guide means for separating said opposite moving marginal cable lengths from one another while guiding the cable to and from the drum;
- said cable guide means having spaced shafts affixed to the recited support structure and positioned with the longitudinal central axis thereof being parallel to one another and to the drum shaft, and normal to the cable rove about the drum;
- a first spool rotatably mounted on a first of said spaced shafts, a second spool rotatably mounted on a second of said spaced shafts, each spool having spaced flanges defining the cable receiving width thereof, and spaced circumferentially extending cable receiving grooves located between said flanges;
- said spaced shafts being arranged relative to one another and the support structure and drum such that the flanges of one spool are received in overlapping relationship respective to the flanges of the remaining spool;
- said grooves of one said spool being positioned respective to the grooves of the remaining spool and to the cable bearing portion of the drum to provide spaced cable receiving apertures between said spools which can loosely capture spaced marginal lengths of the cable when the cable is placed therethrough;
- said cable having a marginal length rove through one said aperture and about part of one spool, about part of the drum, back around part of said one spool, and through the remaining aperture to thereby maintain the marginal opposite moving lengths of the cable separated from one another while the cable travels to and from the drum.
In a cable driven drum apparatus wherein a cable is rove at least part of the way about the drum to leave opposite moving cable ends which cross one another, the combination with said drum apparatus of a cable guide means for guiding the cable ends to and from the cable driven drum:
- said guide means having a first spool and a second spool;
- the axial centerline of each spool being arranged parallel to each other, to the axial centerline of the cable drum, and normal to the cable which is rove thereabout;
- spaced flanges on each spool, means forming spaced circumferentially extending grooves about each spool at a location spaced from said flanges;
- means by which said spools are journaled in spaced relationship relative to each other with a marginal circumferentially extending edge portion of the flanges of the one spool being received in overlapping relationship respective to the marginal circumferentially extending edge portion of the flanges of the remaining spool, and with the grooves of the first spool being aligned respective to the corresponding grooves of the second spool to jointly form spaced passageways between the flanges and between the spools, through which a marginal length of the cable ends can be guidably placed so that a marginal length of the cable can be received through one of the passageways, roved about the cable drum, and returned through the remaining passageway, thereby preventing the opposite moving marginal cable ends from contacting one another.
Dependencies are inferred from the claim text.