摘要:
Described herein is a method for manufacturing a non-run elastic fabric on warp knitting machines having two thread guide bars and a needle bar, consisting in prearranging a rigid thread (2) on one of the two thread guide bars and an elastic thread (3) on the other thread guide bar, and consisting moreover in arranging a rigid thread (2) and an elastic thread (3) in phase with one another and according to a weave having a periodicity of four stitches, in which three consecutive stitches are obtained on three different consecutive needles.
摘要:
Provided herein is a temperature-sensor and actuator device, comprising: a supporting body (4); an actuator lever (5), which is constrained to the supporting body (4) and can turn with respect to the supporting body (4) itself about an axis of rotation (5a), the rotation of the actuator lever (5) being linked to the rotation of an actuator shaft (2); a return torque acting on the control lever (5) about said axis of rotation (5a); and at least one elastic element (3) made of shape-memory material, designed to vary its elastic constant at at least two different operating temperatures, and constrained to the supporting body (4) and to the actuator lever (5) in such a way that its elastic deformation is such as to determine a torque acting on the actuator lever (5) about the axis of rotation (5a) and opposing the return torque.
摘要:
Provided herein a fan device with blades with selectable inclination designed to vary the inclination of the blades as the operating temperature varies and comprising: an airscrew (3), including a rotation shaft (5) and a plurality of blades (6) with a degree of rotational freedom in a radial direction (6a); a supporting structure (2), designed to support at least the airscrew (3); an adjustment rod (10) connected to the blades (6) in a way, designed to link its own axial rotation to the rotation of the blades (6) with respect to said degree of freedom (6a); and a sensor and actuator assembly (4) including an actuator element (12) made of shape-memory material, designed to vary the axial angular position of the adjustment rod (10) as the operating temperature varies.
摘要:
A cargo door is provided corresponding to a main loading aperture (4) and comprising: a plurality of jointed portions (1a); lowering means (3) defining a lowering axis (3b) and suitable for lowering at least part of the portions (1a); opening means (7) defining at least one hinge axis (7b) crosswise to the lowering axis (3b) and suitable for moving at least part of the portions (1a); the cargo door consisting of a combined tailgate (2) and door (6) and the lowering means (3) and opening means (7) being suitable for permitting opening of the door (6) independently of lowering of the tailgate (2).
摘要:
It is disclosed an artificial climbing structure comprising panels (2) for making up an artificial wall (3), grips (4,5) to be positioned on the panels (2), and means (6) for attachment of the grips (4,5) to the panels (2), each panel (2) having a plurality of engagement seats (7) for the grip attachment means (6) to define a plurality of distinct positioning points to be selected at will for application of said grips (4,5). The artificial climbing structure firther comprising a main support structure (5) and a stiffening structure (16).
摘要:
It is disclosed an artificial climbing structure comprising panels (2) for making up an artificial wall (3), grips (4, 5) to be positioned on the panels (2), and means (6) for attachment of the grips (4, 5) to the panels (2), each panel (2) having a plurality of engagement seats (7) for the grip attachment means (6) to define a plurality of distinct positioning points to be selected at will for application of said grips (4, 5).
摘要:
The boiler body (1) comprises a substantially cylindrical hollow skirt (8) made by extrusion, in particular of aluminium material. The extruded skirt (8) is machined on its surface to form seats for fastening of auxiliary elements such as doors, closing means, heating elements and the like, for the boiler and/or the steriliser. The skirt (8) is closed at one end by a plate-like bottom wall applied thereto and can have longitudinal stiffening ribs or ridges on the outer surface thereof. It preferably has a cross section different from the circular section, in particular a substantially oval section, to increase the useful space for arrangement of item-holding trays (6). At least the inner surface of the skirt (8) of aluminium material is anodised to withstand contact with steam.