摘要:
A press fit machine for assembling an electric motor which includes a hub having an upper bearing and a stator assembly having a lower bearing, includes an upper and lower press fit fixtures for holding the hub and stator respectively in a preloaded condition prior to motor assembly and for a predetermined period of time afterward. The machine press fits the two halves of the motor together while maintaining appropriate preloads on the upper and lower bearings to prevent excess looseness in the bearings or excessive stiffness. The preload ensures that the bearing will function correctly after assembly because it is maintained during a period of time that the glue joining the hub and stator assembly together sets.
摘要:
The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
摘要:
A motor incorporating a bearing guided labyrinth system of the present invention includes a shaft, a hub, a bearing assembly, and a bearing guided labyrinth. The bearing assembly includes an inner bearing ring and an outer bearing ring separated by a plurality of ball bearings. The inner bearing ring has an inner annular ring surface and the outer bearing ring has an outer annular ring surface. The bearing guided labyrinth has an inner prong and an outer prong. The inner prong is at least partially positionable between the inner ring surface and the shaft. The outer prong is at least partially positionable between the outer ring surface and the hub. The outer prong grips the bearing assembly and specifically the outer annular ring surface of the outer bearing ring.
摘要:
The present invention pertains to acridone and acridine compounds of formula (I), wherein either: (a) K is ═O, L is —H, alpha is a single bond, beta is a double bond, gamma is a single bond (acridones): or, (b) K is a 9-substituent. L is absent, alpha is a double bond, beta is a single bond, gamma is a double bond and wherein: J1 is a 2- or 3-substituent; J2 is a 6- or 7-substituent; J1 and J2 are each independently a group of the formula —NHCO(CH2)nNR1R2, wherein: n is an integer from 1 to 5; and, R1 and R2 are independently hydrogen, C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, or R1 and R2, taken together with the nitrogen atom to which they are attached, form a heterocyclic ring having from 3 to 8 ring atoms; and wherein, when K is a 9-substituent, K is a group of the formula —N(RN)Q, wherein: RN is an amino substituent and is hydrogen. C1-7alkyl, C3-20heterocyclyl, or C5-20aryl; and, Q is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substituted; and pharmaceutically acceptable salts, esters, amides, solvates, hydrates and protected forms thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo to inhibit telomerase, to regulate cell proliferation, and in the treatment of proliferative conditions, such as cancer.
摘要:
This invention pertains to certain acridine and acridine compounds of the formula (1) which inhibit telomerase, regulate cell proliteration, etc., and/or treat cancer proliferative conditions, etc.: wherein either: (a) K is ═O, L is —H, alpha single bond beta is a double bond, gamma is a single bond (acridines); or, (b) K is a 9-substituent, L is absent, alpha is a double bond, beta is a single bond, gamma is a double bond (acridines); and wherein: J1 is a 2- or 3-substituent; J2 is a 6- or 7-substituent; J1 and J2 are each a group of the formula —N(RN)—W, wherein: RN is a nitrogen substituent and is hydrogen, C1-7alkyl, C3-20 heterocyclyl, or C5-20aryl, and is optionally substituted; and, W is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substitute; and wherein when K is a 9-substituent, K is a group of the formula —N(RN)-Q, wherein: RN is an amino substituent and is hydrogen, C1-7alkyl, C3-20heterocyclyl, or C5-20aryl; and, Q is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substituted; and pharmaceutically acceptable salts, esters, amides, solvates, hydrates, and protected forms thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit telomerase, to regulate cell proliferation, etc., and/or in the treatment of cancer, proliferative conditions, etc.
摘要:
A pipe structure suitable for being laid in the sea comprises an inner pipe (2) for conveying fluid to be transported along the pipe structure and an outer pipe (3) around the inner pipe and supporting the inner pipe with space between the inner and outer pipes, the outer pipe having openings to allow water first to flow into the space between the inner pipe and the outer pipe and then to flow out of the space.
摘要:
The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
摘要:
A driving transmission has two half shafts connected to a pair of land wheels driven by a differential gear mechanism connected to the half shafts, and a differential lock coaxial with one of the half shafts and drivingly connectable with the differential carrier. The differential lock is separated from the differential carrier by a hollow shaft encircling said one half shaft, and the hollow shaft is adapted to be driven by the differential carrier and drivingly connectable with the differential lock. Drive means are also provided in driving relation between the hollow shaft and a second pair of land wheels.
摘要:
The present invention relates to compounds having the general formula (I) with the definitions of X, Y, R1, R2, R3, R4, R9, R10 given below, and solvates, hydrates, esters, and pharmaceutically acceptable salts thereof. Furthermore the invention relates to the use of said compounds for the treatment of Alzheimer's disease and their use for the modulation of γ-secretase activity.
摘要翻译:本发明涉及具有通式(I)的化合物,其具有X,Y,R 1,R 2,R 3,R 3, R 4,R 9,R 10,及其溶剂合物,水合物,酯和药学上可接受的盐。 此外,本发明涉及所述化合物用于治疗阿尔茨海默氏病及其用于调节γ-分泌酶活性的用途。
摘要:
Ethylenically unsaturated, particularly acrylic, monomers are polymerised using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn2(CO)10). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerisation and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalise them and/or to form block copolymers.