摘要:
The present invention comprises methods of machining a workpiece. In one embodiment, a method includes positioning a workpiece in a first position in a process station of a machine system, and forming at least one check feature on the workpiece. A position of the check feature is then sensed while the workpiece is positioned in the first position, and one or more machined features are formed on the workpiece relative to the check feature while the workpiece is positioned in the first position. The workpiece is then moved from the first position to a second position within the process station, and a position of the check feature is again sensed while the workpiece is positioned in the second position. One or more machined features are then formed on the workpiece relative to the check feature while the workpiece is positioned in the second position.
摘要:
Reinforced structural assemblies and methods for forming such assemblies are disclosed. In one embodiment, a reinforced structural assembly includes an engagement portion having at least one projecting structure extending outwardly from the engaging structure, and a receiving portion having at least one recessed structure that slidably receives and fixably retains the projecting structure. In another embodiment, a method for constructing a reinforced structural assembly includes positioning at least one projecting structure on a first substrate, positioning at least one recessed structure on a second substrate. The at least one projecting structure and the at least one recessed structure are slidably coupled and fixably secured.
摘要:
A precision shear is provided which allows the removal of material from a machined part. The shear provides a precision cut that requires little or no finish grinding or polishing thereby reducing the time required to produce a machined part. The precision shear may be operated by hand or attached to a machine.
摘要:
Reinforced structural assemblies and methods for forming such assemblies are disclosed. In one embodiment, a ribbed portion includes rib segments having a vertical height that extend laterally between junctions to form a network coupled to a supporting substrate. The rib segments include a plurality of flanged portions coupled to a lateral edge of the rib segments. In another embodiment, the ribbed portion includes rib segments having flanged portions on opposing lateral edges that receive opposing substrates. Similarly, a method includes forming a ribbed portion having a plurality of rib segments extending laterally between junctions. The rib segments include a plurality of flanged portions on at least one of the first and second lateral edges. First and second substrates are coupled to opposing sides of the ribbed portion.
摘要:
An apparatus for treating food substances includes a cutting plate defining a longitudinal axis and having at least one cutting surface for supporting food substances and a collecting tray releasably mountable to the cutting plate. The collecting tray defines a reservoir for collecting food substances cut on the cutting surface. The collecting tray may define a spout adapted to facilitate pouring of liquid material of the food substances. The collecting tray may define first and second spout segments. The first and second spouts may be disposed in diametrical opposed relation.
摘要:
An air turbine driven rotary machine tool having a tool casing, a turbine rotor mounted within the casing for rotation, a stator mounted in fixed position in the tool casing coaxially aligned with the turbine rotor, a annular cavity defined within the casing and coaxially aligned with the stator and rotor for supplying air to the stator blades, a cylindrical spindle coaxially mounted with the turbine rotor in the tool casing for rotation with the turbine rotor, and a tool holder mounted coaxially to the spindle for rotation therewith and having an end thereof for operably receiving a cutting tool.
摘要:
A railroad trackwork frog assembly is provided with a base plate, a spring wing rail supported by and movable laterally relative to the base plate, and a hold-down subassembly attached to the spring wing rail and to the base plate, the hold-down subassembly comprising, in combination with a horn housing, a horn element having a cross-section area moment of inertia about a transverse horizontal axis intersecting the cross-section area center of gravity that is smaller than the cross-section area moment of inertia about a transverse vertical axis intersecting the cross-section area center of gravity.
摘要:
A railroad frog assembly is provided with a spring wing rail latch holdback subassembly that continuously retains the spring wing rail in a spring wing rail fully open position when activated by the wheels of a railcar traversing the frog assembly, and that automatically deactivates the latch holdback subassembly and releases the spring wing rail from retention in an open condition and for complete closing after the last railcar wheel has passed through the frog assembly.
摘要:
A railroad trackwork spring frog installation having a conventional wing rail with attached wing rail horn fitting is provided with an improved co-operating hold-down comprising a weld block element component, a separate, readily replaceable, riser component supported by the weld block component, a housing component positioned over the wing rail horn fitting and supported by the weld block component, and bolt-type fastener devices joining the hold-down components into a unitary structure.
摘要:
An improved railroad trackwork frog is provided with a relatively fixed rigid wing rail, a relatively movable spring wing rail, a base plate, and at least one roller outrigger and ramp plate assembly which is attached to the spring wing rail and to the base plate, and which functions to cause limited upwards vertical movement of the spring wing rail relative to the base plate when the spring wing rail is moved laterally relative to the rigid wing rail by the engaged wheel flange of a passing rail car.