A coupling comprising an outer socket or receptacle part having an internal opening, and a nipple or insert part which is sized to be inserted into the opening of the receptacle part. The receptacle and insert parts are provided with outer and inner lock ring grooves, respectively, which are substantially aligned in the radial direction when the parts are assembled. A garter spring is located in and extends between the two grooves when the parts are assembled in order to lock the parts together. The groove of one of the two parts has an arcuate surface and the radius of the surface is substantially the same as the radius of the coils of the spring, whereby the arcuate surface supports the coils and retards flattening of the coils. The groove of the other of the two parts has a surface which overlies the spring and holds the spring in place in the grooves even if the spring should break.
In a pressure sleeve in particular a vibration pickup, an abutment surface is formed as a circumferential ring at a location radially spaced from a central point. Therefore, the pressure sleeve can be fully pressed against the structure to be monitored by a mounting screw. Therefore a sensor provided with the pressure sleeve can approximately linearily extending and disturbance measuring signals.
A yarn draw-off pipe for the withdrawal of a yarn, e.g. from a spinning rotor. To achieve easier replaceability of the yarn draw-off pipe, the latter is provided with an inclined surface upon which an elastic element bears to retain the yarn draw-off pipe. The inclined surface is placed in relation to the axis of the holder of the yarn draw-off pipe in such manner that the force of the elastic element exerted radially to the axis produces a force acting in axial direction, so that the yarn draw-off pipe is securely held in its holder.
A quick connection-release coupling according to the present invention comprises a female coupling part having a cylindrical adapter and a male coupling part having a cylindrical nipple, a resiliently expandable and retractable C-shaped spring ring being arranged along an inner circumferential surface of the adapter, the nipple having an engaging portion protruded on an outer circumferential surface thereof, and the engaging portion being capable of being engaged with or disengaged from said C-shaped spring ring. A cylindrical releasing jig being movable forward and backward against the engaging portion is threadably arranged on the outer circumferential surface of the nipple. When pulling the nipple out of the adapter, the releasing jig is moved forward and pushes the C-shaped spring ring using an advancing force of the thread, thereby radially expanding the C-shaped spring ring to cause the engaged state between the engaging portion and C-shaped spring ring to be released.
A high pressure conduit connector is provided. An insertion fitting is partially inserted into a high pressure conduit, and a press-in sleeve is provided that extends over the insertion fitting and the conduit for effecting a pressure-tight connection between them. A safety sheath, preferably embodied as a cylindrical coil spring, is secured to the outer side of the press-in sleeve, and to a portion of the insertion fitting that projects out of the high pressure conduit and the press-in sleeve, at least frictionally.
A breakaway coupling comprising a nipple and coupler normally engaged together by a canted coil spring. The coupler includes a coupler valve and the nipple includes a check valve. The canted coil spring is disposed in the coupler and receives the nipple as it enters the coupler. The nipple includes an inclined surface which enables the canted coil spring to be gradually compressed as the nipple enters the coupler. The canted coil spring simultaneously engages the shoulders and bottom surface of a recess in the coupler body and the first and second beveled surfaces and the bottom surface of a recess in the nipple adaptor. Vent structure is provided in the coupler and a bleed back vent is provided in the nipple.
