摘要:
A point chisel includes a substantially cylindrical shank and a working end region that tapers to a point. The working end region has at least three converging substantially planar surfaces, each with a protruding elongate rib extending along at least part of its length. Adjacent surfaces meet along at least part of their length at substantially straight edges between adjacent ribs. A flat chisel includes a substantially cylindrical shank and a working end region with a pair of converging substantially planar surfaces that include a plurality of protruding elongate ribs extending along at least part of its length. Each rib has, along the majority of its length, a substantially constant height above the surface from which it protrudes. Each chisel is made from steel, with the shank having a bainitic microstructure and the working end region having a martensitic microstructure.
摘要:
A combination drill bit for use in both hand held drills and stationary drill presses has a shanking end, a working end and a helical flute portion between the shanking and working ends. The helical portion has a helix length (L) of L = ( D × π tan α ) . The drill bit has a core that is tapered from the working end to the shanking end. A web thickness length at the working end is 10% to 35% of the diameter and the thickness length at the junction of the shanking end is 70% to 90% of the diameter. The drill bit is manufactured from a high speed steel including at least 5% by weight of cobalt.
摘要:
A combination drill bit for use in both hand held drills and stationary drill presses has a shanking end, a working end and a helical flute portion between the shanking and working ends. The helical portion has a helix length (L) of L = ( D × π tan α ) . The drill bit has a core that is tapered from the working end to the shanking end. A web thickness length at the working end is 10% to 35% of the diameter and the thickness length at the junction of the shanking end is 70% to 90% of the diameter. The drill bit is manufactured from a high speed steel including at least 5% by weight of cobalt.
摘要:
A point chisel includes a substantially cylindrical shank and a working end region that tapers to a point. The working end region has at least three converging substantially planar surfaces, each with a protruding elongate rib extending along at least part of its length. Adjacent surfaces meet along at least part of their length at substantially straight edges between adjacent ribs. A flat chisel includes a substantially cylindrical shank and a working end region with a pair of converging substantially planar surfaces that include a plurality of protruding elongate ribs extending along at least part of its length. Each rib has, along the majority of its length, a substantially constant height above the surface from which it protrudes. Each chisel is made from steel, with the shank having a bainitic microstructure and the working end region having a martensitic microstructure.
摘要:
An impact resistant tool or tool bit holder has an active end for driving a fastener and a shanking end for securing to a power tool. The active end includes a body with a bore to receive the shank and a pocket to receive a damping mechanism. The shank includes an end to engage the bore in the body, and a pocket to receive the damping mechanism. The shank is received in the bore in the body for limited rotation with respect to the body. A damping mechanism is positioned in the pockets to provide damping between the body and the shank during torque loading.
摘要:
A method and system for remote administration of clients performing critical processes are disclosed herein. A client management module is used to monitor a subset of processes performed by a client. When the client management module detects that a process of the subset has terminated or become inoperable, the client management module can restart the process, as well as notify a remote system manager. Additionally, the client management module is adapted to monitor the consumption of system resources by one or more processes. Using fuzzy logic to evaluate the system resource consumptions of one or more system resource types, the client management module can select an appropriate action response to improve the performance of the process and/or notify an administrator of a status of the process. The remote system manager is adapted to monitor a connection with the client. When a connection failure is detected, the system manager can diagnose a cause of the connection failure and take action accordingly, such as by resetting the client management module, resetting the client, or cycling power to the client using a power distribution unit. Additionally, the remote system manager provides various graphical user interfaces to a user or administrator to allow the administrator to assess the condition of the client and/or remotely control the operation of the one or more processes performed by the client.
摘要:
A bearing assembly having improved impact Brinell resistance is provided. Due to a controlled gap between a rotating component and a non-rotating component or a vehicle suspension structure, the non-rotating component or the vehicle suspension structure is permitted to share impact loads caused by a sufficient side impact to the rotating component, thus preventing excessive loads from being transmitted to rolling elements, and providing greater resistance against Brinell impact damage that would generate a noise and/or vibration condition in the bearing assembly. The width of the controlled gap and of the area of potential contact between the rotating component and the vehicle suspension structure or the non-rotating component are optimized to increase impact Brinell resistance while avoiding excessive contact between the rotating component and the non-rotating component or the vehicle suspension structure during extreme cornering maneuvers.
摘要:
A method of treating animals to obtain muscle relaxation and/or to relieve anxiety is disclosed utilizing novel and known 3-aryloxy and 3-arylthioazetidinecarbonxamides having the formula: ##STR1## wherein Z is oxygen or sulfur; B is oxygen or sulfur; Ar is pyridyl or halo substituted pyridyl, phenyl or substituted phenyl; R.sup.1 and R.sup.2 are hydrogen, loweralkyl, aryl, allyl groups, propargyl, cycloalkyl, loweralkylcycloalkyl, cycloakylloweralkyl, arylloweralkyl and diloweralkylaminoalkyl, and R.sup.1 and R.sup.2 when taken together with the adjacent nitrogen atom may form a heterocyclic amine radical; R.sup.3 is hydrogen, loweralkyl, aryl or arylloweralkyl, and the geometrical isomers thereof and pharmaceutical salts thereof and hydrates thereof when they are possible.
摘要:
An impact resistant tool or tool bit holder has an active end for driving a fastener and a shanking end for securing to a power tool. The active end includes a body with a bore to receive the shank and a pocket to receive a damping mechanism. The shank includes an end to engage the bore in the body, and a pocket to receive the damping mechanism. The shank is received in the bore in the body for limited rotation with respect to the body. A damping mechanism is positioned in the pockets to provide damping between the body and the shank during torque loading.