摘要:
A linear rail system having an apparatus for adjusting the preload on the individual rollers of the slider body which provides a linear rail of the type having upper and lower parallel raceways through which a slider body having a number of rollers attached thereto is adapted to axially translate. The rollers are assured contact with the upper and lower raceways while also providing the ability to absorb shocks placed on the slider body.
摘要:
A shear wall construction panel having a pair of load bearing vertical posts arrayed between upper and lower horizontal tracks or structural members is improved by the addition of a pair of bracing brackets for each diagonal bracing member. Shear wall bracing boot brackets at each end of the diagonal bracing members are securely affixed to the four interior corners of the shear wall panel system and the bracing members are located in the interior volume of a framed panel. The bracing members and bracing boot brackets are connected with a hillside washer configuration. A typical shear wall panel of the present invention will additionally contain several interior non-load bearing steel framing studs having an array of punch-out holes to facilitate the passage of the bracing members.
摘要:
A nut and lead screw assembly is disclosed. The nut includes a plurality of flexible fingers for adjusting the engagement of a threaded or unthreaded portion of the nut with corresponding threads of a lead screw. The engagement between the nut and the lead screw is adjusted by installing at least one radial compression member into a circumferential groove formed in the outer surface of the flexible fingers.
摘要:
A method of partially imaging a substrate, for example glass, with a print pattern comprising layers of ceramic ink in substantially exact registration. The method relies on a mask ink layer defining the print pattern and differential thermal expulsion of ceramic ink medium during a heat fusing process between the areas outside the print pattern and within the print pattern. This results in pigment and glass frit forming a durable image material adhered to the substrate within the print pattern and non durable material outside the print pattern, enabling its removal outside the print pattern to leave the desired layers of ceramic ink within the print pattern in substantially exact registration.
摘要:
A guide rail that includes a base rail having a channel therein and at least one finger extending from a portion of the channel. The guide rail further includes a race insert mounted against the at least one finger. In an embodiment of the invention, the race insert has a first and second raceway associated with the at least one finger extending from a portion of the channel. Further, the first and second raceways have different load transmission directions, wherein the load transmission directions of both the first and second raceways are oblique to the direction that the at least one finger extends from a portion of the channel.
摘要:
A telemetry apparatus and method for communicating data from a down-hole location through a borehole to the surface is described including a light source, an optical fiber being placed along the length of the wellbore and receiving light from the light source, a transducer located such as to produce a force field (e.g. a magnetic field) across the optical fiber and its protective hull without mechanical penetration of the hull at the down-hole location, one or more sensors for measuring down-hole conditions and/or parameters, a controller to provide a modulated signal to the magnetic field generator, said modulated signal being under operating conditions representative of measurements by the one or more sensors, and an optical detector adapted to detect changes in the light intensity or polarization of light passing through the fiber.
摘要:
A multiple mode pre-loadable fiber optic pressure and temperature sensor includes a generally cylindrical structure having at least one compression element, a fiber optic having a Bragg grating in contact with one side of the compression element, a diaphragm in contact with the other side of the compression element, and a fluid port in fluid communication with the diaphragm. According to preferred aspects of the, a groove is provided in at least one compression element for receiving the fiber optic. The sensor is pre-loaded by straining the diaphragm over the adjacent compression element when the cover is attached. The compression element in contact with the diaphragm preferably has a contoured surface contacting the diaphragm and the diaphragm is stretched to match that contour. By varying the contour of the compression element and the thickness of the diaphragm, the dynamic range of the sensor can be changed. The preferred diaphragm has a variable thickness and is made as an integral part of the structure. The sensor can be operated in normal, reverse, or differential mode.
摘要:
A chain merchandising apparatus includes a frame, a cabinet secured to the frame, and a chain support mounted to the frame and located within the cabinet for supporting a plurality of chain containers. A chain cutter is moveably fixed to the apparatus so as to be facilely and safely selectively adjustable vertically and horizontally in relation thereto for permitting a user to position the chain cutter substantially adjacent to a preselected chain container supported on the chain support.
摘要:
A motor is provided. The motor includes a motor body and a rotor assembly. The rotor assembly includes a magnetic core mounted to a rotor shaft. The rotor assembly may include standoffs for accurately axially locating the magnetic core relative to rotor bearings. A drive nut adjustment arrangement may be provided. A mechanical interconnection between the drive nut and rotor shaft may be provided. A trailing end lead screw support may be provided. An axial preload arrangement may be provided to axially locate the rotor assembly within the motor body.
摘要:
A nut assembly for use with lead screws is provided. The nut assembly includes a nut member and an adjustment arrangement that can independently adjust the biasing of flexible fingers of the nut member.