referring now to the fig .&# 39 ; s 1 - 5 , one preferred embodiment of the invention is shown in an exploded view . in this embodiment the invention includes a reel housing 1 which includes a threaded stud 5 and a mounting flange 1 a . a spool 2 is mounted on stud 5 and rotates on a pair of inner and outer bushings 6 . in one preferred embodiment bushings 6 are self - lubricated , or made of a low friction material such as a teflon ®. doing so eliminates the need to lubricate the spool , increasing its usability in the field . spool 2 includes an inner flange 2 a , a middle flange 2 b , and an outer flange 2 c . inner flange 2 a and middle flange 2 b define a first line spool portion 2 d . middle flange 2 b and outer flange 2 c define a second line spool portion 2 e . a braking surface 2 f is provided on the peripheral surface of outer flange 2 c . a handle knob 3 is mounted on spool 2 by pin 4 . a first washer 8 and a spring washer 9 are mounted on stud 5 , and the whole rotating assembly is retained on stud 5 by a retaining nut 7 . in operation the reel is mounted on a rod at flange mounting flange 1 a in typical fashion . a first fly line is wound onto first line spool portion 2 d , and a second fly line is wound onto second line spool portion 2 e . one of the lines is threaded through the line guides of the fishing rod for use in a normal fashion , while the other is retained on the spool by a resilient line retainer 10 . if the conditions arise that require the use of the different line on the other spool , the first line is rewound onto the first line spool portion 2 d . the retainer 10 is moved from the line on the second line spool portion to the line on the first line spool portion , and the other fly line is extended and threaded through the line guides for use . it is often the case when fly fishing that the momentum of the fly line as it is thrown can result in an over spinning of the spool and cause tangling of the line . this is referred to as backlash . in this embodiment of the invention retaining nut 7 and spring washer 9 cooperate to preload a frictional force on spool to limit the over spinning of the spool . nut 7 is adjustable to provide a continuously variable range of adjustment as required for different line weights and rods . in addition to the preloading provided by the retaining nut and spring washer , the spool in includes an angles shoulder portion 2 f that serves as a “ braking surface .” as the line is thrown , the user &# 39 ; s heel of the user &# 39 ; s hand is gently pushed against shoulder 2 f to slow the spinning spool , and in that way to accurately place the lure at the desired position . the angle and position of the braking shoulder 2 f is such that the user can conveniently brake or slow the spinning spool with the heel of his hand while holding the rod in the normal fashion . in one preferred embodiment the reel housing and spool assembly are manufactured in a lightweight , non - corroding metal such as aluminum or titanium , permitting the reel to be used in salt water environments without danger of corroding . however , the invention is not limited to any particular material of construction , and could be made of other metallic or polymeric materials . in another aspect of this embodiment of the invention , the reel housing and spool flanges are drilled with numerous holes to further lighten the assembly and increase the sensitivity of the fly rod and reel , although the invention is not so limited . in another preferred embodiment as shown in fig6 - 10 , the reel operated in a similar manner . this embodiment differs in the design of the shaft and retainers used to mount the spool onto the shaft . referring to fig6 shaft 16 is mounted on reel housing 14 by means of washer 13 and shaft retaining nut 11 . spool 15 is mounted on shaft 16 by means of respective inner and outer bushings 3 a and 3 b . d - hole washer 17 , spring washer 18 , tension control washer 12 and spool retaining nut 19 . the tension on tension control washer 12 is adjusted by means of turning spool retaining nut 19 to tighten or loosen tension control washer 12 on shaft 16 . tension is transmitted from tension control washer 12 to spool 15 through tension spring 18 . spool retaining nut 19 can be adjusted to provide any level of spool rotation resistance desired . this embodiment also differs from the first preferred embodiment in that a pair of spool turning knobs 20 a and 20 b are provided , as opposed to a single knob . having described the invention by reference of several preferred embodiments , it will be apparent to those of skill in the art that the illustrated embodiments could be varied in detail and arrangement without departing from the scope of the claims .
a fly reel having a spool with multiple line holding portions , permitting a single rod an reel assembly to be simultaneously fitted with different types of fly line , and eliminating the need to remove and reinstall reels when changing types of fly line .