摘要:
An improved needle inspection station for use in a combined index machine for forming drilled taper point needles of the type having a plurality of chucks mounted on a rotating platform adapted to selectively engage and release a needle to be formed, a rotary drive for indexing the platform and the chucks through a plurality of radial positions, and a plurality of work stations circumferentially disposed adjacent the radial positions occupied by the chucks. A needle inspection platform slidably mounted on the baseplate reciprocally movable toward and away from a chuck occupying a position adjacent the inspection station. A slide member is movable toward the chuck to permit the gripper to engage the needle, retract it from the chuck and rotate it 180 degrees to reverse the orientation of the needle relative to the chuck. The slide member is then movable back toward the chuck to allow the gripper to replace the needle in the chuck. The needle inspection platform is moveable toward the chuck to permit the needle point to be tested. The needle inspection platform includes a stop containing a resilient conductive material at the leading edge of the platform and a strip of nonconductive material disposed between the stop and the chuck, such that when the strip is moved into contact with a needle extending from a chuck, a properly formed needle point will penetrate the strip and make electrical contact with the stop, thereby signaling a programmable logic controller connected to the stop that a properly formed needle has been detected.
摘要:
The air/fuel ratio of the combustion mixture in the cylinders of an engine is sensed and the sensed air/fuel ratio is controlled to a predetermined scheduled air/fuel ratio by controlling the amount of exhaust gases recirculated. When the exhaust gas recirculated is substantially zero, the air/fuel ratio is thereafter closed loop adjusted to a predetermined scheduled minimum air/fuel ratio when the sensed air/fuel ratio is less than the minimum and when the sensed air/fuel ratio is greater than the minimum while the operator command is at a maximum to thereby provide precise fuel limiting at a predetermined fuel limit schedule.
摘要:
A chain extending agent for reaction injection molding (RIM) comprising a normally liquid blend of butanediol and a toluene diamine mono-substituted with an electron withdrawing group and having the formula ##STR1## wherein X is vicinal to an amino radical and is selected from the group of halogen, CN, NO.sub.2, acyl, carboxylate and isomeric mixtures thereof, and wherein the butanediol and diamine are combined in a critical mole ratio of from 4:1 to about 19:1. The above blend is particularly useful in the preparation of large moldings of polyurethane-polyurea elastomer by the RIM or RRIM (reinforced reaction injection molding) process wherein instant preformed blend is added to a mixture of polyol reactant and catalyst before polymerization in the mold with isocyanate to produce a urethane/urea polymer product of improved properties. Accordingly, the intention also concerns an enhanced RIM or RRIM process and improved product by the use of a mixture of the present chain extender blend and polyol reactant maintainable in the liquid state at ambient temperature.
摘要:
A sanitary backwashing system for an automatic milking machine having a milking unit and a source of vacuum, the system including a valve having a first port connected to the milking unit and a pair of second ports alternately connected to the first port, one of the second ports being connected to the source of vacuum; and a source of sanitizing fluid under pressure connected to the other of the second ports and the valve having a first position in which the valve connects the milking unit to the source of vacuum while blocking off the other of the second ports and a second position in which the valve connects the milking unit to the source of sanitizing fluid while blocking off the source of vacuum.
摘要:
The herbicides and plant growth regulants having the formula: ##STR1## wherein A.sup..crclbar. is a halogen anion; X, Y and Z are each independently hydrogen, a halogen atom or haloalkyl group of from 1 to 4 carbon atoms; R, R' and R" are each independently phenyl, halophenyl, haloalkylphenyl of from 7 to 12 carbon atoms or alkyl of from 1 to 6 carbon atoms, optionally substituted with halogen; W is hydogen, --CHO or --CHN(R'").sub.2 where each R'" is independently hydrogen or alkyl of from 1 to 4 carbon atoms, optionally substituted with halogen; and W' is hydrogen or represents a bond forming a double bond between C and W when W is --CHN(R'").sub.2. The invention also relates to the method of preparing said herbicidal and plant growth regulant compounds together with their formulations or compositions as agricultural products and agricultural use thereof.
摘要:
A firearm includes a receiver and a bolt carrier disposed in the receiver. The bolt carrier is moveable between a firing position and a rearward position. A rod is fixed relative to the bolt carrier and a hand guard is coupled to the receiver about the rod. A handle assembly is slideably supported by the hand guard and is moveable toward the receiver to define a charging motion and away from the receiver to define a forward assist motion. The handle assembly receives the rod during both of the charging and forward assist motions. An arm is coupled to the base and is moveable between a disengaged position spaced from the rod and an engaged position abutting the rod. When the arm is in the engaged position, the handle assembly is moved to move the rod and the bolt carrier in either of the charging and the forward assist motions.
摘要:
The present invention provides for a firearm including a buttstock defining a first bore extending along a longitudinal axis and a receiver coupled to the buttstock. The receiver defines a second bore extending substantially parallel to the longitudinal axis and in fluid communication with the first bore. The receiver also defines an ejection port transverse to the longitudinal axis. The firearm further includes a bolt carrier disposed in the second bore and movable relative to the receiver along the longitudinal axis between a firing position and a rearward position. The firearm also includes an expulsion device at least partially disposed in the buttstock for flowing air through the first and second bores and out the ejection port as the bolt carrier moves between the firing and rearward positions.
摘要:
A firearm assembly including a first weapon having a first receiver is disclosed. The first receiver includes a front end with a barrel attached to the front end and a front sight attached to the barrel. A second weapon is selectively mounted to the first weapon and movable between an engaged and disengaged position. The second weapon includes a second receiver and a mounting system having a first portion attached to the second receiver and a second portion coupled to the second receiver. The first portion is coupled to the front sight to define a first attachment point when the second weapon is in the engaged position. The second portion includes a first end coupled to the front sight to define a second attachment point and a second end coupled to the first receiver to define a third attachment point when the second weapon is in the engaged position.
摘要:
A filling valve apparatus for filling a container with a fluid. The apparatus includes a body portion and a stem. A sleeve is disposed over the stem and is removable from the stem and the body portion when the filling valve apparatus is serviced. A seal is mounted to the bottom of the sleeve. At least one component is movably connected to the sleeve and remains connected to the sleeve when the sleeve is removed from the stem and the body portion during the servicing of the filling valve apparatus. Similarly, a valve assembly, having a housing and a movable plunger is removable from the body portion. At least one member is mechanically connected to one of the housing and plunger for creating a unitary valve assembly that remains intact when the valve assembly is removed from the body portion during servicing of the filling valve apparatus.
摘要:
A filling machine assembly having supports for supporting any suitable fixture. At least one of the supports includes a plurality of modules with each of the modules including at least one coupling member for interlocking adjoining modules to form a continuous uninterrupted support. The modules can include sides with at least one coupling member mounted to each side. The coupling members are preferably complementary in configuration with each other for interlocking the first and second modules.