Abstract: A hand racket for a ball game has a frame with two concentric rings interconnected by several spokes, the inner ring having a diameter exceeding that of a ball to be bounced off a net of strings spanning that ring. The two rings are separated by spaces whose width exceeds the ball diameter and which enable the gripping of the outer ring by the hands of a player whose aim is to let the descending ball hit the net without striking the frame or dropping through one of the intervening spaces. The rings and the spokes are tubular and, except at two handle-forming locations of the outer ring, are provided with resiliently depressible cover strips closing a circuit for the actuation of a sound generator when the frame is being hit by the ball. The frame may be provided with a ball launcher to be used at the beginning of a round.

Abstract: A game for evaluation and development of various psychic abilities between its participants. Objects are furnished which include bi-valued dimensional attributes, such as rough-smooth, solid-hollow, or heads-tails. A player concentrates on a chosen attribute and attempts to either transmit, receive, block, predict, or influence a given valued condition. A gameboard is provided on which a player's successes are marked by position of his player-piece or counter on the board. Counter positions are marked with the chance probability of reaching a given position from a start position in a given number of moves. Board layout is such that if the incidence of successes is greater than that expected by random chance alone, counters are moved toward another player, thereby establishing a higher degree of psychic connectivity.

Abstract: A tennis racket having a frame with a grip and a plurality of strings connected to the frame through a number of connecting elements permitting the displacement of an active connection point between the frame and the strings in a direction outwardly of the inner boundary of the frame.

Abstract: A racket of the type formed from a single metallic profile, shaped so as to define the frame, the throat-piece and the tail of the racket, the tail being defined by two mutually parallel ends of the profile, characterized in that the parallel ends are rigidly locked in relation to each other by means of at least one metallic plate disposed substantially along the whole length of the tail. In the handle portion of the racket, a metal honeycomb is disposed between the parallel ends of the profile.

Abstract: A method for stringing a racquet characterized by forming a linearly expansible pre-strung web having a plurality of rows of diamond shaped interstices and then stretching said web row-by-row along a linear axis of expansion by starting with the innermost rows of the web and proceeding symmetrically outwardly to the outermost rows of said web. As a final step, the linearly expanded web is laced to the head of a racquet. An apparatus for accomplishing the above method is characterized by an elongated base supporting a pair of carriages for reciprocal, colinear movement. A plurality of stretcher bars are supported by the base between the carriages to stretch the web row-by-row away from a central axis. Links are provided to selectively couple the stretcher bars to the carriages.

Abstract: The invention relates to games racket frames which are made from reinforced plastics material and have a hollow construction. The particular construction and method of the invention enable a satisfactory hollow product to be made by an injection moulding technique instead of the more laborious technique of building a suitable reinforced hollow construction around a mandrel.The frame is a hollow injection moulding of reinforced thermoplastics material in which the walls (21A and 21B) at the outer and inner circumference of the head (21) are joined by supports (25) through which the stringing holes (23) pass. The supports are integrally formed during the moulding.

Abstract: A handle (22) for a racquetball racquet (20) is disclosed. The handle (22) includes an elongated member having front (52), intermediate (60), and rear (50) portions. The front portion (52) defines a handle outer surface of greater circumferential extent than the rear portion (50). The front portion (52) is adapted for being engaged about a portion thereof by the two front fingers (56a, b) of a player's hand while the rear portion (50) is adapted for being gripped by the two back fingers (54a, b) of a player's hand, whereby the front (52) and rear (50) portions provide for a handle (22) which allows for a relatively hard grip by the back two fingers (54a, b) and a less hard grip by the two front fingers (56a, b) thereby allowing the wrist to relax and remain flexible so as to reduce arm stiffness and improve a player's game.

Abstract: Longitudinal strings 15 or 25 of tennis or other sports rackets 10 or 20 are lengthened to be at least 30% longer than transverse strings 17 or 27 and are strung with at least 30% more tension than the transverse strings. The longitudinal strings are also functionally related in length and tension to the transverse strings to effectively apportion to the longer longitudinal strings from approximately half to substantially more than half of the string force for decelerating a ball pentrating the string network as the ball is hit. The functional relationship for selecting appropriate lengths and tensions for the longer and shorter strings is mathematically derived, analyzed, and related to practical working mechanics of a string network.

Abstract: A frame structure adapted for use as a tennis racket. The frame structure includes a frame body made from either wood, metal or plastic having a tubular structure with inside and outside surfaces. A composite material jacket having an outer layer adjacent and bonded to the frame outside surface and an inner layer adjacent and bonded to the frame body inside surface is provided. The composite material jacket is made from composite materials such as resin impregnated boron, graphite, polyamide aromatic and glass fibers. In addition, plastic throat pieces commonly used to connect and support racket necks and handles are replaced by composite material cross-member supports which are integrally molded to the composite material jacket. The composite material jacket provides structural reinforcement as well as desirable shock and vibration dampening characteristics. In addition, the tubular frame is provided with elongated slots through which racket strings are attached for mounting.

Abstract: Board game apparatus for realistically simulating the action of a sailboat race. The game board has a playing area having a plurality of movement spaces arranged over the major area thereof in a manner so as to define various possible directions of movement of a movement piece representing a sailboat, namely, the northerly, southerly, easterly, westerly, northwesterly, northeasterly, southwesterly and southeasterly directions. The apparatus further includes features for representing various factors normally encountered by a participant in an actual sailboat race such, for example, as the direction of the wind and the direction of the current. A movement direction indicator forms a part of the game board and designates the direction in which the movement piece is moving.

Abstract: A board game comprising a game board divided into a plurality of horizontally and vertically disposed rows of squares, the horizontal rows constituting a game track extending from one corner of the board to the diagonally opposite corner. The squares represent companies the stocks of which are traded between players and between players and the board, the squares being divided into debit and credit sides. Special security transaction squares are also provided on the game board for transactions between players or between players and the board. A portfolio card is provided for each player, the surface of which reflects the companies appearing on the game board so that each player can keep a record of his stock portfolio.

Abstract: A racket structure to be used in a tennis and the like racket and a method for producing it, where the handle section and the head frame section are made of a one-piece composite member including an inner lightweight soft plastic core member having a central prestressed multifilament cord member and a glass fibers reinforced hard plastic, outer surrounding layer, anchored on said core member within the head frame section, said surrounding layer being covered on opposite faces with respective resilient flow cover members which also sheath part of the height of said head frame section on the inside face, facing the netting, defining the striking surface stretched in the oval space defined by the head frame section of the racket.

Abstract: A games table, particularly a coin-feed pool table, has a playing surface bounded by cushions containing pockets supported on a floor-standing housing. Within the housing the pockets are joined by channels to a ball outlet in a side wall of the housing and also to an internal ball-storing racking arrangement.In order to avoid jamming of the balls due to dirt deposits, the channels and also the racking arrangement have edge structures along which the balls run.The racking arrangement may comprise feed channels leading to a storage rack via an aperture through which the smaller cue ball can fall to be returned to the player if pocketed during a game. The larger object balls run over the aperture to the rack.The channels joining the pockets with the racking arrangement may be formed by rods held together by spaced supports which may comprise annular clips having recesses which engage the rods.

Abstract: The racket-stringing machine comprises a cradle for locking a racket frame in position and means for applying tension to a racket string. In order to apply tension to the string which is attached to the racket frame, a carriage is located externally of the cradle and provided with means for anchoring the string, for guiding and displacing the carriage in translational motion in the direction of withdrawal or approach with respect to the cradle and for applying tension to the string. The instantaneous tension of the string is compared at each instant with a predetermined tension to be established in order to permit displacement of the carriage in the direction of withdrawal as long as the instantaneous tension is lower than the predetermined tension, the carriage being then locked in position when these tensions are of equal value.