into grooves 373 in bushing 357 the length of sprocket core 301 is selected so that it extends just past the end of reel core 296 when sprocket 9 is journaled on the reel core as seen in fig4 flat washer 375 on bushing 357 is pressed against the end of sprocket core 301 by wave washer 377 such as a belleville spring which is mounted on bushing 357 between flat washer 375 and its adjacent circlip 371 wave washer 377 thus applies a controlled force to clutch plate 341 to provide sufficient slippage between the reel and sprocket during a braking operation to dampen oscillations that would otherwise be caused by clutch spring 317 while permitting a return of the reel and sprocket to their original rotational orientation fig4 and 15 illustrate the field lighting housing 292 and its placement inside the peripheral rim 21 of reel 7 housing 292 comprises three adjacent chambers 379 each having a reflective back wall 381 and four reflective sidewalls 383 for directing light from the chamber out through a rectangular opening 385 defined by the four side walls lamps 387 are mounted in sockets 389 on the back wall of each chamber and are coupled to a source of electrical power through field lighting circuit 391 as seen in the schematic view of fig1 each reel assembly 3 is provided with a respective field lighting housing 292 mounted inside reel 7 by a supporting arm 393 which is attached to floor plate 246 and extends upwardly in the space between two adjacent reels the openings 385 of housing 292 are positioned in close proximity to.