Abstract:
A golf cart has a supporting frame formed of articulated struts that can be folded during use and can be unfolded to form storage elements for the golf cart.
Abstract:
A racket, especially a tennis racket, having a frame surrounding a stringed hitting area, the frame being formed with a shaft on which a grip sleeve is mounted. In order to ensure that the grip sleeve is very stable and resistant to twisting and is arranged on the shaft either firmly or slidably, while manufacturing tolerances of the shaft and/or the grip shell can still be balanced, the following characteristics are provided:(a) the grip sleeve is formed of one or more parts made of a hard elastic material;(b) inwardly directed position-fixing elements are provided at the inside walls of the grip sleeve, the position-fixing elements centering the shaft in the grip sleeve, at least partly with little tolerance play;(c) spring elements are provided between the inside walls and oppositely facing surfaces of the shaft;(d) the spring elements brace the grip shell in a springy manner, but without play, relative to the shaft; and(e) optionally, the shaft, itself, may be provided with stop surfaces that interact with the position-fixing element to further stabilize the grip against twisting.
Abstract:
A tennis racket includes a handle portion, a frame portion which has strings mounted therein and a throat portion which connects the handle portion and the frame portion. An insert is installed in the throat portion and connected to the same. The insert is adapted to have secured thereto at least some of the strings. The insert may undergo elastic yielding in direction substantially normal to the general plane of the frame portion in response to the impact of a ball onto the strings and consequent transmission of the impact stress from the strings to the insert.
Abstract:
This invention relates to a bucket brigade circuit or delay line having a compensation circuit for the loss of the dc level after n stages. The compensation circuit contains a differential amplifer and a transferring circuit adding the dc level loss to the bucket brigade line dc level. The differential amplifier samples the signals of a line stage close to the input and a line stage far from the input which are both controlled by the same signal phase.
Abstract:
A tennis racket having a hand-grip shell that can be moved longitudinally on the frame shaft. The hand-grip shell is formed of two half-shells made of a hard material which, by means of an elastic winding strip, a tube or several tube sections are pressed together so that the thus formed grip is held firmly on the shaft, but can still be moved longitudinally therealong. In addition, an adjusting device, such as an adjusting screw, is provided for adjusting the position of the hand-grip on the shaft. The result is that, in a simple manner, an easy individual lengthening or shortening of the grip can take place.
Abstract:
A hand-grip for a racket, especially a tennis racket of the type having a hand-grip sleeve formed of longitudinally extending components mountable on a shaft of a racket frame connected to a hitting surface, according to the invention, utilizes at least two similar shell parts, made of a hard, elastic material, that have longitudinally extending edge portions which are arranged in such a way that, when the hand-grip sleeve rests firmly against the shaft, adjacent edge portions laterally overlap without end faces thereof abutting against one another. The hand-grip sleeve is provided with an elastic covering which presses the sleeve against the shaft on all sides.
Abstract:
The invention relates to a motor vehicle door hinge for the pivotal fitting of a vehicle door to a vehicle body, including a door member adapted to be fitted to the vehicle door and a pillar member adapted to be fitted to the vehicle body, these being pivotally interconnected. The invention further relates to a set of components for motor vehicle door hinges including a door member and a pillar member for the pivotal fitting of a vehicle door to a vehicle body. In order to provide a motor vehicle door hinge which can be manufactured particularly cost-effectively and furthermore to provide a set of components for the manufacture of a motor vehicle door hinge, the components of which permit the manufacture of at least two hinges which can be employed on a vehicle, provision is made in the case of the motor vehicle door hinge, that the pillar member and/or the door member are formed from at least two components, i.e. a base plate fittable on the vehicle side and a support arm fittable to the base plate. Regarding the set of components the arrangement provides that the set includes a base plate, fittable to the vehicle door and/or the vehicle body, and a support arm fittable to the base plate, the base plate and the support arm being adapted for the production of a door member and/or pillar member employable in at least two positions of a vehicle and the base plate and the support arm being pre-manufactured.
Abstract:
As per invention, [6--.sup.3 H] or [6--.sup.2 H] gibberellins respectively are produced. By the process as per invention, production of tagged gibberellins is made from natural gibberellins or gibberellin derivatives having a carboxyl group at position 6 of the ent-gibberellin basic skeleton. After transformation into a gibberellin derivative with a hydroxymethyl group at position 6, oxidation is made to gibberellin-7-aldehyde with subsequent conversion of same to a mixture of 6-epimeric gibberellin-7-aldehydes, which will be obtained tagged at the C-6 position if deuterium or tritium donors are present during epimerization, oxidation into tagged gibberellins being performed thereafter.By the invention, tagged gibberellins are made available which are tritiated or deuterated to such a C-H bond as is present in unsubstituted state in all natural gibberellins and their derivatives, and at which bond no biochemical changes have hitherto been observed.The process as per invention is of general applicability and produces the tagged gibberellins with a high yield. The process is particularly suitable for compounds with acid-sensitive structure characteristics, for example with simultaneous presence of a hydroxyl group at the C-13 position and of a .DELTA. 16.17 double bond.
Abstract:
The present invention relates to novel, recombinant deoxyribonucleic acids (DNA), to vectors and host organisms which contain them, and to transgenic plants which contain the recombinant DNA and possess an elevated resistance toward pernicious organisms and plant diseases, where the recombinant deoxyribonucleic acids (DNA) are characterized in that they consist of a combination of the following components, or components possessing a DNA which in each case has the same effect, or contain these constituents:(a) a double-stranded cDNA fragment which is derived from the RNA of the plum pox virus (PPV) ("fragment A"), and(b) a double-stranded cDNA fragment which is derived from the S RNA of the tomato spotted wilt virus (TSWV) ("fragment B"), it being possible for these combinations also to possess, in addition to further DNA fragments which may optionally be present, a promoter which is active in plant cells.