摘要:
The invention concerns an driving appliance, called contra-angle handpiece, for surgical instruments, in particular in dental surgery, consisting of a handle (1), a neck (2) and a head (3) wherein the instrument is fixed; each of the parts of said contra-angle handpiece receiving therein a drive shaft respectively called output shaft (4) for the handle (1) and input shaft (8) for the neck (1), linked to each other by a gear train (21). The invention is characterized in that the output (4) and input (8) shafts of the appliance are mounted sliding in their respective bodies forming a sheath and maintained supported on a stop (11, 12) arranged on their corresponding sheath through a single elastic element (13) housed in the bend linking the handle (1) to the neck (2).
摘要:
This invention relates to a bearing for passage of a lubricating fluid, the bearing comprising at least one opening communicating between an interior of the bearing and an exterior of the bearing, the opening being shaped to increase a pressure of the lubricating fluid as it flows past the opening, such that the bearing acts to urge the lubricating fluid in one direction between the interior and the exterior of the bearing. Furthermore the invention relates to a methods for recovering lubricating fluid pressure in rotating machinery, and engines containing such bearings.
摘要:
A drawer slide positioning mechanism providing two directional adjustment of a drawer with respect to a drawer slide. The positioning mechanism fits within an outline of a rail of a drawer slide. The positioning mechanism includes a vertical adjustment element and a horizontal adjustment element.
摘要:
A multi-pad (24), fluid film thrust bearing (8) has the pads suspended from the carrier ring on hydrostatic oil pressure regions. The oil is pressurized hydrodynamically by relative rotation between a load surface and the bearing surface of each pad; and the oil is passed through each pad to a rear cavity where the hydrostatic pressure region is established. A manifold interconnects all of the hydrostatic pressure regions for the individual pads in order to average the hydrostatic pressures and provide for static and dynamic load equalization.
摘要:
A translation system comprising: a linear support having first and second opposite ends; a carriage slidably mounted on said support for movement in reciprocal linear directions between said first and second ends of said support; a rotary drive rotatable in opposite rotary directions located at one end of said support; a rotatable member mounted at the other end of said support; and a multiple cable assembly attached to said carriage and extending around said rotary drive and said rotatable member moving said carriage in said reciprocal linear directions as a function of rotation of said rotary drive in said opposite rotary directions.
摘要:
Coated cored contoured crushable structural members and methods for making the same are described. The contoured structural members comprise composite or metal materials sandwiching a support or stabilizing structure. The cored and contoured structure can be provided by tube rolling (or roll wrapping) the composite or metal materials and the support structure together and then, if necessary, bonding them or connecting them. The coating for the coated structure is provided in or on the materials making up the structural member. The structural members are made crushable by incorporating an initiator into the structural member. The structural member crushes at the location of the initiator by absorbing the energy of an exerting load. With a coated, contoured, crushable, and generally non-flat structure, applications and uses for the structural members of the present invention are nearly limitless.
摘要:
A high speed antifriction bearing (A, E, J) receives minute quantities of high performance grease or oil at selected intervals from an electrically controlled injector (D, H, I) having a nozzle (84, 184) that is directed at the rolling elements (6, 154) of the bearing. By minimizing the lubricant in the bearing, the lubricant does not accumulate in quantities that render it susceptible to working. The high performance lubricant produces a boundary layer film between contacting critical surfaces (14, 20, 30, 34, 36, 154, 156, 158) within the bearing. That film is so thin that it has little capacity to churn or work and produce heat. The injector may be the type used for electronic injection of diesel fuel into the cylinders of diesel engines.
摘要:
A system for fixing the sheath (2) of a "Bowden" cable (1) to a reaction element (18) in flexible transmissions for mechanical controls. The system comprises a female tubular bush (8) fixed to the reaction element (18), for example, the support plate of a drum brake, a male tubular bush (3) fixed to the end of the sheath (2), as well as snap-engagement means (14, 7) carried by the internal surface (9a) of the female tubular bush (8) and by the external surface (6a) of the male tubular bush (3), respectively, for mutual engagement thereof in a manner such as to permit axial assembly and disassembly without damage. The system enables the transmission to be disassembled without damage to the constituent elements which can be re-used at the re-assembly stage.
摘要:
A vehicle door latch 60 has a latching function operated by longitudinal movement of the inner of a Bowden cable 66 via a lever 92. The latch also has a locking function operated by rotation of the cable inner. The longitudinal movement of the cable inner is effected by means of the external door handle 64, and the rotational movement by means of the key operated door lock 62.