摘要:
An axial-flow pump combined with an electric motor coaxially arranged therearound. The rotor (1) and stator (2) are common to both the electric motor and the pump. The rotor comprises a central tubular portion (11) defining a central channel (14) with a wall (15) provided with blades (16). The blades preferably do not extend as far as the channel axis (3) so that they define a central free area therealong. The outer portion of the rotor (1) has pairs of permanent magnets (24, 25) with stator coils (9) therebetween. The coils are actuated and deactuated by an electronic switching device (28) controlled by sensors (36, 37) for sensing markings on the rotor. The length of the rotor is smaller than its outer diameter. Said pump may be used to pump liquids or gases and drive vehicles, particularly submarines.
摘要:
A wheelchair is made up of a pair of parallel main frames connected to each other on the rear side via a detachable back supporter and on the front side via footplates foldable along a center hinge extending in the longitudinal direction. Large wheels and a seat plate are detachably coupled to the main frames. The seat plate is changeable in level by leverage operation. After detachment of the large wheels, and unlocking of the back supporter, the wheelchair can approach very close to a user lying on a bed. When the large wheels are detached, the wheelchair can go through doors of ordinary sizes. By folding the foot plates together, the main frames can be put together side by side for convenience in transportation.
摘要:
A method and a device for continuously producing compact multilayer paperboard sheets at high production rates and at a particularly competitive cost. The production device (10) comprises at least three mutually aligned feed rollers (11, 21, 31, 41) that each support a roll (11a, 21a) of a paper web (12, 22, 32, 42), and means for stacking and coating (13, 23, 33) the webs with an adhesive, urging them together and pressing (14, 24, 34) them. Said device comprises preheating means (71-75) for preheating each paper web (12, 22, 32, 42) prior to coating, accelerated adhesive drying means (16, 17, 26, 27, 36, 37) for generating a heat flow after the webs have been stacked and pressed following the coating step, sensing means (80, 81, 82) for sensing the residual moisture content in the bonded webs, means for adjusting the heat flow depending on the moisture content so that uniform drying is achieved, and impregnating means (43, 44, 43', 44') for impregnating at least one side of the first (12) and last (42) paper webs with a waterproofing substance. The method and device are suitable for use with any kind of paperboard packaging, particularly for food, and for replacing products containing wood, polystyrene or other synthetic materials.
摘要:
La pièce de bijouterie (10) peut notamment être une boucle d'oreille, un pendentif, un porte-clés, une bague, un bracelet ou un fermoir. Elle comporte un élément central (11) de forme sphérique et un élément périphérique (12) ayant par exemple une forme de portion d'anneau. Cet élément périphérique a une certaine élasticité et comporte un alésage central (13) d'un diamètre légèrement inférieur au diamètre de l'élément central. Une gorge concave (14) est réalisée sur le pourtour de l'alésage central, cette gorge formant des moyens de retenue (15) de l'élément central. Finalement, l'élément périphérique (12) comporte un organe de liaison (16) représenté sous la forme d'une chaînette et d'un crochet. Ainsi, l'élément central (11) est mobile dans l'élément périphérique (12) et peut être changé simplement en le pressant latéralement hors de l'alésage central.
摘要:
A planetary assembly (44) interconnects an input shaft (30) transmitting an engine torque (CM) and an output shaft (31) transmitting a resisting torque (CR). A counter torque (RC) caused by engagement with a fixed point (35) of the housing is added to the engine torque in the planetary assembly (44) via a two successive centrifugal planetary devices (36, 37) with eccentric fly-weights. The second centrifugal device (37) constantly balances the three torques (CM, CR and RC). The first centrifugal device (36) transmits the resisting torque (CR) to the second device while controlling it by adjusting the eccentricity of the fly-weights. This transmission can drive the output shaft at a continuously variable speed between zero and a speed at least as high as that of the input shaft, and is useful for driving variable speed machines or vehicles.
摘要:
Personal object to be worn by the user, especially a watch, a medal or a bracelet, including indicating means corresponding to personal medical details. The object is so designed that these confidential medical details are not visible from the exterior when the object is worn, but can be readily found and understood by the staff of rescue agencies. The details are set out in standardized form on the respective sections of an indication surface (6) which is covered by an ID tag (5), and states, in particular, the wearer's identity. Each section is covered with a removable tag portion (73). If the wearer shows symptoms indicated on one of the sections, the simply breaks the portion (73) covering that section. The existence of this risk is shown by means of a display device on the front face of the object, for example, on the watch face in the case of a watch. Complementary data can be shown by the display means and by tabs (7-10) attached to the watch bracelet (3).
摘要:
A bat in the form of a sleeve can be slid over the hand of a player so that the latter can play as in tennis, on any type of ground , with or without a bounce on the ground. The bat (1) comprises an upper sleeve element (5) and a lower sleeve element (6) joined along an edge (7) wherein an opening (10) is provided for inserting the hand. Each sleeve element is more rigid in a flat central portion (11, 12) forming a striking surface than close to its periphery. The bat envelops and holds the hand due to its inherent elasticity. It may also comprise retaining means (13) on the surface and closure devices to each side of the wrist.
摘要:
A device designed to be fitted to or built into a golf club such as a putter to assist in learning the correct club position, in particular for indoor or home putting practice. A transmitter unit (24) is releasably attached to the shaft (5) of the club (1) and comprises a laser diode (28) for transmitting a parallel light beam (25) towards an optical unit (26) having a cylindrical lens (31) above the club iron (7). The lens diffuses the light along a vertical plane to form a beam (18) directed at the ground (3) in front of the iron, whereby the player is able to see a line of light (19) on the ball and on the ground indicating the direction in which the ball (2) will travel depending on the position of the striking surface (8) of the iron. In one embodiment, the optical system may be supported by an arm attached to the shaft (5).
摘要:
A mechanism for driving the two halves (5) of a centrally-opening door at a substantially constant speed along an arc of a circle, where the door aperture is wide and said mechanism takes up limited vertical space, particularly in lift, building or vehicle doors. Each half (5) of the door is connected to a pivot arm (13) linked at one point (P, Q) to a secondary drive (20) using a chain or a synchronous belt (21) which is slightly elongatable by means of a resilient compensating element (24). Both secondary drives (20) are driven by a motor (17) via a common primary drive including two stages (18 and 19) separated by a frictional torque limiter (33).