Abstract: A hockey practice apparatus comprises a thin mat member having a length and a width each substantially greater than its thickness, a generally centrally disposed longitudinal axis extending along its length, and including a bottom stratum presenting a slippage precluding bottom surface and a top stratum adjoined to the bottom stratum and presenting a low friction substantially planar top surface for receiving a hockey puck in free sliding relation thereon.

Abstract: A durable batting tee utilizes an adjustable compression nut to provide a range of adjustable heights for extensible vertical pipes, and an inverted flexible cone atop the vertical pipes upon which a baseball is placed for hitting, such that the compression nut will maintain the rubber cone at a predetermined height, and the flexible cone will maintain its integrity throughout a lifetime of repeated strikes with a baseball bat. The baseplate is dimensioned and weighted to hold the tee upright during normal use, and to permit tipping when subjected to errant swings of a bat.

Abstract: A pitcher protection net device in baseball practice having a frame installed on the ground to vertically extend to cover a pitcher from his front. A net closes a space surrounded by the outer edge of the frame and is attached to the frame. The frame includes a main frame forming one lateral portion on one widthwise side. An auxiliary frame projects from the lower portion of the main frame toward the other widthwise side to form the other lateral portion of the frame. The pitcher protection net device in baseball practice includes an extension net that closes a corner space surrounded by this side edge of the upper portion main frame on the other side and the upper edge of the auxiliary frame. The extension net is capable of deflecting downward. The pitcher protection net device also includes an adjusting means for adjusting the amount of deflection of the upper edge to the extension net.

Abstract: A simulated image of a batter facing a pitcher is provided for use in pitching practice. The lower portion of the batter includes one or more stakes which are inserted into the ground and provide a stable support. By positioning the simulated batter in an appropriate place near “home plate”, a pitcher can use the batter as a reference to determine the location of the strike zone. The size of the batter can be adjusted to vary the size of the strike zone. A ball detection apparatus and audio output can be provided to indicate when a pitch is detected and whether the pitch is a ball or a strike.

Abstract: A ball game practice apparatus comprising a ball, a practice apparatus main body that hangs the ball and at the same time regulates the ball flying range, the practice apparatus main body possessing a frame that can hang the ball at a specified position via an elastic means and a column for supporting this frame, wherein the elastic means comprising a frame connection extended along the frame and mounted to the frame and a ball connection that hangs the ball, characterized by the frame connection of the elastic means mounted to the frame which is turned back by at least a pair of turn-back portions with a rotatable turn-back mechanism.

Abstract: An ice hockey training device is provided for rebounding a puck travelling on a playing surface. The device comprises a three-dimensional, solid, adhesive resilient body having flat, parallel top and bottom surfaces. The body is formed of tire chips held together with adhesive. The body has a vertical side edge or face which is operative to rebound a puck at substantially the same velocity with which the puck is shot against it.

Abstract: A batting practice device comprising a resiliently flexible and elongate retaining rod, a target member coupled to a distal end of the elongate retaining rod, and a clamping structure for clamping a proximal end of the elongate retaining rod to an environmental structure, such as chain link fence. The target member may be coupled directly to the distal end of the elongate retaining rod as by having the elongate retaining rod pass through a bore hole in the target member. A fixed or selectively removable ball stop may retain the target member on the elongate retaining rod. The clamping structure may incorporate a first clamping block and a second clamping block and a threaded clamping nut that selectively presses the blocks together. The first and second clamping blocks can have first and second elongate clamping furrows for engaging adjacent strands on a chain link fence.

Abstract: A baseball pitching target having a base with a pair of vertical channels integrated thereon for insertion therein of a foldable simulated batter figure. To maintain the batter figure in an upright position there is behind the figure, also integral with the base, a vertical hollow main frame for receiving therein a tube adjustable in height with a back support/hook assembly at its upper end for attachment to the extended batter figure. This main frame also has an upper shoulder having a pivot thereon for insertion of a hole thereabout at one end of a swingable spring-loaded arm further having a glove target at its other end. Thus, all the player sees is the batter figure without distracting elements, adjustable in height to define a strike zone, and a glove target attached to an arm swingable when hit and automatically returnable to its original position.

Abstract: A training aid and method for basketball and other sports having a large hoop or “halo” supported on a vertical post for adjustment. The vertical post is mounted on a T-shaped base which supports the large hoop in such a way that a player can take shots through the hoop without contacting the base. Training a player to properly shoot a basketball begins with teaching the proper method of holding the ball over the player's head and using the legs for a small, quick jump. Using the shot training aid, the player jumps and takes a shot with a high arc at the goal. With other sports, the angle and height of the device can be adjusted as desired, but the dominant feature in the invention is that proficiency in all sports requiring projectiles to be accurately impelled toward a target can be improved.

Abstract: A flying ball stopping net device including an elastic wire rod assembly which assumes an annular form when it is in a free state lying on a horizontal flat surface. The assembly first and second end members with intermediate members constituting transition members between the first and second members. A flying ball stopping net is provided closing a first end space surrounded by the first member. A flexible first connecting member interconnects the first and second members and counteracts the elastic restoring force of the wire rod assembly to enable imaginary extension planes of the first end space and a second end space to cross each other at a predetermined angle.

Abstract: A ball hitting practice device featuring a practice ball slidably located upon a tether. The tether is attached to a support structure thereby placing the practice ball in a target position to be hit by a user. The support structure may be mounted to a base, driven into the ground, or attached to a wall. The ball is slidably mounted to the tether and is positioned in a target position for striking by a user by a ball positioner also located on the tether in a fixed position that is either adjustable or permanent. Once struck during use, the practice ball and attached tether wrap around the support structure and may be aided in the return to the target position by an elongated biasing device attached to the distal end of the tether and the support structure or another fixed point of attachment. An optional cam may be used to adjust the radius of a vertical post of the support structure thereby allowing the user to alter the return speed of the ball to the target position by adjusting the cam.

Abstract: According to the invention there is disclosed a collapsible batting practice apparatus which comprises an inclined ball delivery channel for delivering a ball to a hitting area under gravitational forces, a support stand for supporting the inclined ball delivery channel at an elevated position, the support stand including a base and an elongate column connecting the inclined ball delivery channel and the base, and the inclined ball delivery channel and the elongate column being selectively collapsible into sections storable within the base. The base preferable comprises a five to seven gallon bucket, the elongate column is formed from a plurality of rigid tubular sections formed of a rigid plastic such as polyvinyl chloride and compressible rigid connectors also formed of PVC or the like which fit within the sections of tubing so as to be completely concealed thereby.

Abstract: A portable ball batting practice apparatus for attachment to a pre-existing support includes an elongated member having two ends. The elongated member is attached at one of its ends, via a rotational hub assembly, to one end of a two-ended rotatable arm. The other end of the rotatable arm is secured to a ball. By employing opposing stops within the rotational hub assembly, the rotational hub assembly allows both right and left handed hitters to utilize the apparatus and produces a directed “pitch” for a user to hit. Incorporated into the elongated member is a releasable anchoring system for attaching the elongated member to the support.

Abstract: A ball striking training system that delivers balls to a user's hitting zone without a horizontal velocity component includes a hopper to hold a plurality of balls and a feeding mechanism which delivers tennis balls to an outlet tube where they are dropped from a chosen height so that they bounce to the height desired by the user. The balls may be struck by a learner into a target area that includes a collection mechanism to collect the balls so that they may easily be returned to the hopper of the feeding mechanism. The system can be set up to be used indoors or outside at the user's convenience.

Abstract: The present invention 10 discloses an exercise device wherein a user 12 exercises the abdominal muscles by throwing a ball 14 against a net system 20, 40, 42. The user 12 places his head 34 and back 32 on a pivotable platform 18 and his buttocks 30 and feet 56 on a stationary platfoin 22 which pivots about spring 36. The spring 36 provides lift assistance when the user 12 throws the ball 14 and shock dissipation when the user 12 catches the ball 14. Foot straps 28 are provided for securing the feet 26 of the user 12. The nets 20, 40, 42 are mounted on supports 48, 50 which are vertically adjustable using locking means 52. Nets 40, 42 also have pivot means 46 for folding for storage against central net 20.

Abstract: A practice device comprising a plurality of striking targets arranged about a frame in an overall configuration which approximates the shape of an opponent. The targets are individually articulated to the frame, so that each individual target reacts independently in response to a strike. The targets are each in communication with a common force sensor, through a load transfer shaft movable relative to the frame and bearing on a force sensor such as a load cell, which provides feedback to the athlete regarding the force of each strike.

Abstract: A sports training device which consists of a body belt which can be secured around the body, an elastic cord and an implement holder. The elastic cord is attached to an adjustable length strap on the belt so that the end of the elastic cord can be drawn snug against the body or eased off. The elastic cord passes through a slide ring. The implement holder, which can be secured around a sports implement or stick, is attached at the free end of the elastic cord.

Abstract: Football practice equipment which can be in the form of a one-man tackling sled or a multiple-man blocking sled equipped with connecting apparatus. By connecting tackling sleds together, a blocking sled can be created upon which is mounted the desired number of dummies for use in training football players in the art of blocking and tackling, individually or in team formations. The tackling sleds are connected together to form multiple dummy blocking sleds by attaching connecting members between as many of the tackling sleds as desired. The connection between the tackling sleds is made via channel members on the tackling sleds with locking handles for securing the connecting members in their associated channel members.

Abstract: An instructional device for training a user to hit a ball. The device includes an elongate handle portion for being gripped by the user, and an elongate body portion extending from the handle portion. An enlarged diameter ball-striking sleeve is carried by the body portion and defines a hitting zone within which the user attempts to make contact with the ball. A sleeve-adjusting surface is formed with the ball-striking sleeve for moving the sleeve along the length of the body portion between a plurality of hitting positions. Friction holds the ball-striking sleeve in a selected one of the hitting positions as the instructional device is swung by the user.

Abstract: A projectile machine for use in practicing various activities including the practice of basketball shots from various positions on a basketball court. The projectile machine when practicing basketball shots automatically returns the basketballs to the person practicing shots thereby eliminating the necessity for the practicing player or other players to retrieve the basketballs that have been shot and return them to the player practicing the shots. More specifically, the present invention enables basketballs that have been shot towards the basketball goal or hoop to be automatically collected and mechanically returned to a selected on-court location at varying elevations, trajectories and velocities. The projectile machine can also be used during various activities relating to the practice of various endeavors in which an article is projected in a desired trajectory. The projectile machine may be supported from a support post for the backboard and goal for use as a home unit.

Abstract: A hitting trainer which has a slanted surface mounted on a stand, and which the player will hit with a bat in order to develop strength and quickness.

Abstract: Described herein is a training device and methods of use thereof for helping a baseball batter keep both hands on the bat while swinging at a ball, thus training the batter to swing with more power, better bat control, and better discipline in taking (i.e. not swinging at) bad pitches. The device includes a right wristband and a left wristband connected by a knuckle cover which covers a portion of the batter's knuckles. The device may also include a finger strap to further ensure that the device does not rotate around the wrist or hands and become improperly positioned across the knuckles.

Abstract: A batting practice training device includes a handle which contains a bearing attached to the proximal end of a rope. The distal end of the rope is attached to a ball. A retaining strap is attached to each end of the handle, and wraps about the back of the hand of the pitcher, helping to prevent release of the handle by the pitcher. In one embodiment of the invention, the handle is wedge-shaped, with the smaller end attached to the rope. The wedge shape tends aids the pitcher to retain possession of the handle after the ball is hit by the batter. In use, the pitcher swings the ball in a generally circular orbit, causing it to pass through the strike zone of the batter, who hits the ball.

Abstract: A basketball practice assembly a case including a box-like receptacle which is open at a front side thereof, and a pair of doors hingedly connected with two lateral sides of the box-like receptacle, a pair of fixing members fastened in the box-like receptacle by screws and having a vertical dovetail groove, a pair of telescopic arms each having two inner ends and two outer ends, one of the inner ends being fixedly engaged with the vertical dovetail groove, another one of the inner ends being slidably fitted in the vertical dovetail groove, a net arranged on the telescopic arms to form a rectangular member with an open top, a backboard installed in the receptacle, and a basket pivotally mounted on the backboard.

Abstract: A portable basketball retrieval and return device includes a movable support platform having casters for allowing the positioning of the device on a playing surface adjacent a basketball backboard and rim, a slidable upright frame mounted to the platform and to which a plurality of telescoping arms are attached whereby both the frame and arms are selectively extensible and retractable for disposing netting material which collects shot basketballs from the basketball backboard and rim.

Abstract: A ball kicking apparatus for (1) practicing kicking a soccer-type ball; (2) training to be a goal keeper to receive a ball; and (3) obtaining aerobic exercise, where a frame has two upstanding members for supporting a soccer-type ball by a first cord to be kicked and a second cord for controlling the path of the kicked ball. A netted bag for holding the soccer-type ball can be used and arms can connect the frame to a wall for positioning and storing on the wall.

Abstract: A member (e.g. baseball bat) includes a switch manually operable to obtain the transmission of signals by a transmitter in the member to an apparatus for propelling an element (e.g. ball) toward an individual holding the member. The apparatus includes a receiver for receiving the transmitted signals and includes a housing with a hollow passage. A ramp supported on the housing holds a plurality of the elements for sequential movement into the passage. The element in the passage is supported on one of the fingers of a rotary detainer. The detainer is normally prevented from rotating by a release mechanism coupled to the detainer. The detainer is rotated by the weight of the element when the release mechanism is decoupled from the detainer upon the reception of the transmitted signals. The element then moves downwardly in the passage to a propulsion mechanism which may comprise a pair of rollers for gripping the opposite ends of the element.

Abstract: A bunt guard (10) removably attachable to a baseball bat (12) for protecting a player's fingers and hand from impact by a baseball while the player is learning to bunt a baseball. A ring (14) on the bunt guard encircles the baseball bat and removably secures the bunt guard to a tapered portion of the bat by a frictional fit. A shield (16) attaches to the ring (14) and extends on the front side (28) of the bat (12) where the player grips the baseball bat (12) when bunting. The shield (16) protects the player's fingers and hand from impact with a baseball.

Abstract: The invention provides a swing training machine comprising a circular stand of a rotary motion type, a motion arm of an outer circumference rotary type which rotates inversely to the said circular stand, a wire-length setting apparatus mounted on a part of the said arm of an outer circumference rotary type, wire and a handle part. The swing training machine is used for practicing swing motion of golf, throw events, racket sports etc. easily and safely and to strengthening and increasing the flexibility of muscles of arms, shoulders, the body and legs involved in the actual motion of each event.

Abstract: A hockey training device comprising a frame with skate-like and hockey stick-like members attached thereto, simulating an opposing player. This training device is intended to assist the novice hockey player in developing the skills associated with maneuvering the hockey puck around and/or through an opponent, and forces the novice to concentrate on the triangle presented by the skates and hockey stick of the opponent. The device consists of a frame supporting two downwardly disposed legs having skate-like elements attached, and a third leg having a stick-like element attached. The skate-like elements and stick-like elements have coplanar lower edges so that the entire device may be placed on the ice, resting on these edges. The frame may be weighted, and drag-inducing spikes may be incorporated into the skate-like elements to affect the motion of the device on the ice.

Abstract: A portable basketball training device used to teach basketball players how to properly shoot. The training device is comprised of a folding base and a telescoping vertical column supported by the base; attached to the top of the vertical column is a horizontally adjustable u-shaped shooting guide. The training device is used by first unfolding the legs and then adjusting the telescoping vertical column to the appropriate height, which is determined by adjusting the telescoping vertical posts until the bottom of the u-shaped shooting guide is parallel to the wrist of the user's shooting arm with the elbow extended to the shooting position. Once the appropriate height has been set the u-shaped shooting guide is adjusted horizontally in order to prevent horizontal drift of the shooting hand as the ball is projected toward the goal. Proper use of this device also provides optimal arc and natural backspin giving the ball truer flight to the goal.

Abstract: The present invention details a system for training a baseball pitcher to properly position a drive leg and a lead leg at the middle of the delivery. The system comprising: a support base. A vertically adjustable support arm is attached to said support base. A stirrup is attached to the vertically adjustable support arm. The device is adjustable so that the stirrup can be positioned to allow the pitcher to place a lead foot of the lead leg in the stirrup while the lead leg forms a right angle. The stirrup allows the lead foot to slide in direction of a target.

Abstract: A ball tossing or teeing device (20) includes a housing (21) which carries an operating mechanism (22). A pedal (30) is depressible to actuate the operating mechanism (22) such that upon a single depression and release of pedal (30), the operating mechanism (22) launches a ball and positions another ball in place for launching. A chute (24) can be attached to the housing (21) and carries a tee (25). When the chute (24) is attached to the housing (21), the ball will move up the chute (24) and be placed on the tee (25) upon activation of the operating mechanism (22).

Abstract: A ball pitching machine includes a head assembly for ejecting a ball therefrom, operably mounted on a vertically extensible piston to permit selective vertical adjustment of the head assembly on a base assembly. The base assembly includes an upright tubular mast within which the piston is slidably journaled, the mast having a plurality of legs supporting the mast above the ground. A lock mechanism on the mast permits selective securement of the piston within the mast. The head assembly has a mounting bracket rotatably connected to the forward end of an elongated handle to permit selective rotation of the head assembly about the axis of the handle. The handle has a shaft rotatably mounted in a bracket on the upper end of the piston, permitting selective rotational movement of the handle about the shaft on the piston.

Abstract: A football training and evaluation apparatus has a frame, a contacting element, and a force transferring member connected to the frame and the contacting element. A measuring-signaling element is connected to the force transferring member and is adapted to measure the force subjected on the force transferring member in response to an impact force subjected onto the contacting element and deliver a signal "S" responsive to said measurement. A visual signaling apparatus is connected to the frame and adapted to be actuateable and moveable in response to actuation.

Abstract: A baseball bat which includes one or more colored bands with transferrable colored pigments in or adjacent to the hitting zone to assist a batter in determining where a ball is hit on the hitting zone of the bat. The colored bands on the bat have a color pigment that will mark the ball when hit. The marked ball will provide an indication of where the bat impacted the ball. This information can be used to better train the players in hitting the balls.

Abstract: The device is a one piece molded unity of resilient material consisting of a base (10) having upper and lower surfaces. The lower surface is generally flat. The upper surface is made non-planer by the presence of numerous irregularities, such as projections (12) (16) (18), formed as part of the unit during the fabrication process. A through hole (14) is provided for carrying purposes.

Abstract: A system for measuring and analyzing body mechanics of a subject includes receivers, transmitters, a display and a processor. The processor which includes a controller which controls the timing of signals from the transmitters so that a signal from each of the transmitters contains an encoded signature which unambiguously identifies the signal as coming from that particular the transmitter. The processor also include a detector which detects signal transmissions as the signal transmissions arrive at the receivers, a signature determinator which recognizes the signature and determines from which particular transmitter the detected signal originated, a local timer which measures a temporal delay between times of emission of the signals from the transmitters and their detection at the receivers.

Abstract: A weighted device that attaches to a baseball or softball bat for the purpose of increasing the bat's mass during batting practice thereby increasing a persons strength and improving their bat control, ultimately improving their batting average and batting power. The device can be used during the actual practice of hitting a ball. The device can be attached to the bat at various locations along the tapered portion of the bat.

Abstract: A warm-up and weight training device for use on a sports racket is provided which can be readily secured to and removed from the racket's strings. The device includes two housing portions and a plurality of weights positionable in the housing portions. A securing device is used to clamp the housing portions together from opposing sides of the strings while securing the housing and weights to the strings. Protective gaskets are provided as a barrier preventing injury to the strings. The combination of the variable weights and the change in the moment arm based on the position of the invention from the handle, provide a wide range of resistance.

Abstract: A batting practice apparatus having a lower support base with a vertically disposed upright support assembly with at least one horizontally disposed extension arm located over a conventional home plate. A tethered suspended ball simulating a baseball in appearance is located near the end of the arm over a lower home plate. The ball may be suspended from different arm positions correlated to the different home plate positions for different simulated thrown balls after they have passed over different parts of a lower home plate within the "strike zone". Added features include a counter for counting the number of ball rotations for struck balls around its their section arm extensions and height adjustments for the extension arms relative to the upright support. A motor may impart motion to the suspended baseball to simulate a thrown ball in flight as the batter attempts to strike it.

Abstract: Apparatus for practicing a wide range of sports is disclosed, and comprises a frame with an upstanding support standard from which a support arm projects. A rotatable hub is mounted on the support arm, and a vertically depending suspension rod depends from the hub. An extensible set of telescopically nested cylinders is mounted horizontally at the lower end of the suspension rod. An extensible central rod within the cylinders supports a target object on a presentation stalk. The target object can simulate any kind of ball or other sports object normally hit, caught or otherwise contacted in normal play. In an electromechanical embodiment, a motor engaged through gears to the suspension rod permits the nested cylinders, and thus the target object, to be raised or lowered. A motor within the outermost nested cylinder engaged through gears, a pulley and cable to the central rod permits the central rod to be rapidly retracted, along with all intermediate cylinders into the outermost cylinder.

Abstract: PRACTICE TARGET FOR BALL GAMES is a means to improve scoring or throwing skills in games utilizing a ball or propelled device including but not limited to lacrosse, baseball football, hockey and soccer. The system as described comprises a metal ring encircled by a colored material which is amenable to being positioned at any desired location on a support. This support could be either a goal-post for any of the games mentioned earlier or an eassily assembled structure that could be provided along with the practice target ring. The size of the ring would be proportional to the size of the porpelling device used in the game being practiced. The metal ring is attached to a metal plate of variable length which is in turn provided with a bracket for attachment to a vertical or horizontal support.

Abstract: A football interactive simulation trainer for quarterbacks and kickers provides true perspective views of a simulated playing area during practice plays, as would be seen by a training player on a regulation size football field during an actual play. The trainer includes a sonic tracking system which has a plurality of ultrasonic transducers spaced apart around the perimeter of an actual playing area for detecting positions of the training player and motion of the football during a practice play. The transducers are selectively grouped and directed in selected directions to establish regions of overlap so that several of the transducers will simultaneously detect the positions of the training player and several of the transducers will simultaneously detect the motion of the football. A data processing system receives data signals from the transducers, and determines the positions of the training player and the trajectory of the football within the actual playing area.

Abstract: Apparatus for propelling balls smaller than a baseball, such as a golf whiffle ball, at timed intervals from a storage bin. The bin contains a plate with a single hole that rotates at timed intervals and permits one ball to be delivered to a continuous air source to propel the ball to a batter. This small ball is then hit with a bat that is smaller and lighter in weight, than an ordinary baseball bat. By design, the storage bin has a mix unit in it to prevent the balls from forming a gridlock or jamming, thereby preventing normal timed operation.

Abstract: A device and method for interactive tennis practice to improve a player's skills and sense and record the player's performance. One of a number of predetermined practice drill patterns are selected, a ball machine is controlled to project tennis balls onto a tennis court in the selected practice drill pattern, and the points of impact of the tennis balls after they have been struck by a player are sensed and displayed on a video screen. The player may select one of several predetermined target areas on the court for display on the video screen, and the sensed points of impact may be recorded for later retrieval. The ball machine may project tennis balls in timed response to the sensing of the impacts of balls struck by the player.

Abstract: A basketball practice or training apparatus or assembly is provided including a floor mount and a vertical standard extending upwardly therefrom. Elongate arm shot obstructions are provided at the top of the standard and are removably mounted for changing the configuration of the shot obstruction if desired such as for practicing jump shots versus free throws. A guarding mechanism is also provided and is secured to the standard and includes a player-engaging portion in front of the standard and spaced above the floor mount. Preferably, the player-engaging portion is selectively movable transversely of the standard to adjust its position in front of the standard so as to allow an operator to manipulate the guarding mechanism for keeping the player-engaging portion close to the player even if they change their position relative to the standard.

Abstract: A swing training device is described, comprising a base assembly, a height adjustable stanchion on the base assembly and a spring for flexing built into the stanchion. An adjustable seat for steadying a hitter astride the stanchion, so as to help the hitter to perform a proper weight shift through the executing of a pre-swing stage and a swing stage for hitting a ball. Methods for training a tennis player using the swing training device are also described.

Abstract: A pneumatic ball launching apparatus propels a ball vertically upward into mid-air without imparting spin on the ball. A pneumatic cylinder is disposed vertically below the top surface of a ground supported platform in axial alignment with the center of an aperture in the top surface of the platform. The pneumatic cylinder has a spring return piston rod with a cup-shaped ball holder secured to its outer end. The cylinder is connected through a valve to a source of pressurized air and the valve is controlled by a timing device. The platform has a downwardly inclined forward portion which slopes inwardly and downwardly from each lateral side to form a central low portion at its forward end. A net extends vertically upward from the forward portion of the platform to catch balls which have hit.

Abstract: A training attachment useful in reinforcing proper glove positioning in the course of fielding a baseball includes a switch assembly that is provided with a switching lever and that is securable to the back of the glove. When thus secured the switching lever extends beyond the glove digit ends, to be deflected against the ground. A buzzer may then be attached to the body of the player connected by a harness to the switch. In this manner correct glove alignment in anticipation of the incoming baseball deflects the lever, thus exciting the buzzer.