referring to the drawings , the golf club or putter 10 consists in conventional fashion of an elongated , generally rectangular , head indicated generally at 12 in the shape of a bar and joined to the inclined and upwardly projecting club shaft 14 by way of a tapered shaft and head connecting portion 16 . the head 12 may be formed of molded plastic , metal or the like , including the connecting portion 16 . of particular importance to the present invention is the fact that the bar - shaped head 12 is generally of c - shaped cross - sectional configuration to define an elongated , generally rectangular , cavity 17 for the reception of a detachable -- that is , separable -- laterally insertable tape player cartridge indicated generally at 18 , the head 12 being molded to form spaced , generally horizontal , top and bottom walls 22 and 24 , respectively , the walls being integrally joined by way of a vertical front wall 20 forming the ball contact surface . as seen in fig4 the front wall is thickened somewhat at its lower end as at 20a to form an interior wall surface portion 21 which is inclined to the vertical . preferably , both ends of the head are open ; this permits either end of the putter to carry the cartridge speaker and its open grill , from which sound projects upon operation of the tape player components within cartridge 18 . the bottom wall 24 of the putter head is provided with longitudinally - spaced , laterally - projecting grooves or slots 26 , while the upper wall 22 is provided with similar shaped , positioned and configured slots or grooves 27 , the grooves being provided on the cavity side of the walls and facing each other . as best seen in fig3 the magnetic tape player cartridge 18 is characterized by a casing formed by horizontal , flat top and bottom walls 28 and 32 , a vertical outer sidewall 30 and an inside wall 34 , the inside wall 34 being formed with a vertical central portion 34a and , on both sides thereof , inclined sidewall portions 34b , such that the sidewall 34 is frusto - pyramidal in configuration . thus , the lower inclined wall portion 34b abuts the tapered or inclined surface portion 21 of the inside face of the head front wall 20 which partially defines the cavity 17 within which the cartridge 18 is placed , to locate the same . further , at longitudinally - spaced positions , there are provided vertical projecting guide fins 36 at the top and bottom of the cartridge 18 , which are of a thickness and height from the cartridge top and bottom casing walls 28 and 32 , so as to closely fit within the grooves 26 and 27 within the cavity side of the top and bottom walls 22 and 24 of head 12 . thus , not only is the cartridge 18 guided as it is inserted within cavity 17 , but the presence of the guide fins 36 prevent any axial shifting of the cartridge 18 relative to head 10 , once it is insertably mounted within cavity 17 of that member . further , the top wall 28 of the cartridge casing is recessed as at 48 , fig4 and a pair of leaf spring latch members 40 are mounted within the recess by means of integral pins 42 which project from the spring - latched member at one end and are held within casing wall 28 to fix the spring - latched members to the cartridge casing . the spring - latched members 40 terminating at the other end in a v - shaped projection 44 , which , when the spring - latched members 40 are in their relaxed position , and upon full insertion of the cartridge 18 within the head 12 , are received within v - shaped notches 46 provided at two longitudinally - spaced positions to the side of grooves 27 and within the upper wall 22 of the head on the cavity side . forcibly pulling of the cartridge 18 from left to right , fig4 causes the v - shaped projections 44 to press towards the cartridge 18 by a camming action and permit the removal of the cartridge although , during operation of the putter , which is used in the manner of a conventional golf club putter in putting the ball on the green , the cartridge 18 will be locked both axially and laterally by the fins and the spring - latched members 40 , respectively . while the right end , fig3 of the cartridge 18 is open ( being covered only by the grill 50 ), the opposite end of the cartridge is closed off by a suitable end wall 51 . the putter contains a magnetic tape indicated generally at 60 , fig5 and 6 , with pre - recorded statements which are activated at the will of the person operating the putter by the utilization of a twist on - off actuator or push button 55 mounted within the vertical sidewall 30 of the cartridge casing . the golfer using the club is then permitted to initiate a verbal message or group of verbal messages which are emitted through the speaker 52 while in the process of putting . however , since the club is actively used in playing the game of golf and is also highly functional in putting of the ball on the green , the location of the center of gravity of the cartridge 18 must correspond to the natural center of gravity of the head of the putter absent the cartridge . in that respect , therefore , reference to fig5 and 6 show , in partial schematic form , the componentry of the magnetic tape player within the cartridge casing . it is noted that the speaker 52 , which may be seen in fig4 is mounted at one end of the cartridge casing and that it is connected to the amplifier electronic circuit assembly 53 by a suitable mechanical and electrical connection as at 54 , the amplifier electronic circuit assembly 53 extending longitudinally almost the full length of the unit and to the side of a battery 74 which acts to power the amplifier circuit components as well as a tape drive motor 72 . the drive motor 72 is mounted at the end of the unit opposite that of the speaker 52 and is coupled by way of shaft 70 to a drive gear 68 which is in mesh with driven gear 66 . the driven gear 66 , by way of its shaft 64 and mounted to the side of assembly 53 , bears a tape reel or drum 62 which supports one end of the endless magnetic tape 60 . the opposite end is supported by and driven relative to the tape transducing head 58 which is connected to assembly 53 via shaft 56 . in order to provide proper tension , a tensioning device is preferably employed constituting an idler or roller 82 , fig5 which is mounted for rotation on a projectable shaft 84 which is spring biased by spring 86 towards the tape 60 to suitably tension the tape as it is driven by way of drum 62 about tape head 58 . the battery 74 is connected by way of terminals 76 to the motor 72 and to the electronic amplifier circuitry of assembly 53 through electrical leads 78 , all of which is under control of the switch 80 . switch 80 is schematically shown in fig5 and 6 . in fig2 a switch is shown as being under control of a twist on - off switch actuator 55 . alternatively , the switch may be provided within the club shaft grip or within the shaft adjacent the grip , as desired . preferably , the switch actuator 55 is such that it must be rotated from the off position shown to the on position -- that is , in a clockwise direction , fig2 -- this permitting the tape player to be set for playing which is achieved by momentary depression of the actuator button 55 . the depression of the actuator button 55 after release starts the tape for a given period of time of audible play to play one or more statements , which may be statements of instructions to the putter operator or jokes or other statements for the purpose of either calming down the putter user or to heckle an opponent , etc . the unit , therefore , constitutes a novelty item in the trade . as may be appreciated , the cartridge may be end - to - end reversed for alternative left - and right - hand clubs , being symmetrical in form . the componentry must balance to the center of gravity of the club head . the item is preferably controlled so that it will reset itself for unlimited replays , or may be set so as to complete a single rotation of the endless tape and thus complete one tape drive cycle for each twist and depression of the actuator button 53 . while not shown , the casing may have a sidewall or endwall , such as vertical rear sidewall 30 , removable from the casing to permit access to the internal tape player componentry for repair as well as replacement of the battery 74 . while the invention has been particularly shown and described with reference to a preferred embodiment thereof , it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention .
a golf putter having an elongated putter head of c - shaped configuration with an open side opposite the hitting face detachably carries a laterally insertable magnetic tape player cartridge which is spring latched to the head after insertion . the tape player cartridge carries a selective switch actuator within the side of the cartridge to effect limited audible tape play for several seconds .