Abstract: A shock-absorbing device for rackets includes a first clamping plate having at least one first hole defined therein and a second clamping plate having at least one hole defined therein. The first and second clamping plates are respectively mounted to two sides of a plurality of strings of a racket with the first hole aligning with the associated second hole. A retaining device extends through the first hole and the associated second hole for securely holding the first and the second clamping plates together.

Abstract: The present invention relates to a tensioning device for dampening vibrations generated in a striking surface of a sporting racquet. The tensioning device has a tubular body portion having cylindrical outer and inner walls and two end surfaces. The cylindrical outer wall has a diameter substantially equal to a spacing formed by two generally parallel strings of the sporting racquet. A dampening unit is disposed inside the tubular body portion. The dampening unit has a center post substantially concentric with the tubular body portion and plural leaf members connecting the center post to the inner wall of the tubular body portion. The tensioning device also has two sets of flange members extending radially outwardly from the outer wall of the tubular body portion and near the end surfaces respectively. The two sets of flange members define a peripheral channel portion therebetween to accommodate strings of the sporting racquet whereby the tensioning device is retained in place.

Abstract: A game racket has a head frame consisting of a string protective strip and a shock-absorbing strip. The string protective strip is provided with a plurality of string protective jackets tubular in shape and having an axial through hole. The string protective strip is secured to a recessed portion of the outer wall of the head frame such that the string protective jackets are received in the string holes of the head frame. The shock-absorbing strip is provided with a plurality of shock-absorbing bodies each having a fitting portion, a shock-absorbing portion and a through hole for accommodating the string. The shock-absorbing strip is secured to a recess of the string protective strip such that shock-absorbing bodies are fitted into the axial through holes of the string protective jackets, and that the shock-absorbing portions of the shock-absorbing bodies are exposed from the free ends of the string protective jackets.

Abstract: The invention relates to a process for removing hydrogen sulfide (H.sub.2 S) and/or carbon disulfide (CS.sub.2) from exhaust gases. These exhaust gases are brought into contact with water and bromine so that H.sub.2 SO.sub.4 and HBr in aqueous solution and possible CO.sub.2 are formed. Bromine is regenerated from the hydrobromic acid in an electrolysis cell. In addition, marketable hydrogen is produced.