Abstract:
In the heat treatment of leather, a piece of leather is placed on a frame and attached thereto by a plurality of clips so that the leather lies substantially flat on the frame. The frame and the leather are subjected to heat treatment and shape memory effect (SME) elements serve to apply stretching forces to the piece of leather. A suitable clip comprises a first part which is securable to the frame, a second part which is movable relative to the first part and grips the leather and an SME element which in its transition range of temperatures displaces the second part relative to the first part to stretch the leather.
Abstract:
In the heat treatment of leather, a piece of leather is placed on a frame and attached thereto by a plurality of clips so that the leather lies substantially flat on the frame. The frame and the leather are subjected to heat treatment and shape memory effect (SME) elements serve to apply stretching forces to the piece of leather. A suitable clip comprises a first part which is securable to the frame, a second part which is movable relative to the first part and grips the leather and an SME element which in its transition range of temperatures displaces the second part relative to the first part to stretch the leather.
Abstract:
A wheel trim assembly comprises wheel trim (2) which is removably attached by a central bolt (6) to a bracket (4) adapted to be secured in use to vehicle wheel (8). Numerous means for preventing rotation of the trim (2) relative to the wheel (8) are disclosed including frictional or positive (see, e.g, pin 58) engagement between the trim and bracket (4) and between the trim and wheel rim. The trim has a central aperture having a removable cover (34) to conceal the bolt (b) from casual view. The bolt has an irregular groove therein adapted to receive a corresponding projection of a wrench to effect rotation thereof.
Abstract:
A decorative unit for a wheel is described which has an annular decorative element which is releasably attached to a central hub element by means of a centrally arranged bolt. The central hub element can be attached to an associated wheel. The annular decorative element is provided with a central opening which has a removable cover element arranged therein in order to conceal the centrally arranged bolt. Furthermore, a locking bolt is described which is provided with an outer surface in which a groove is arranged which can receive a correspondingly constructed projection of a key in order to turn the bolt. The groove is held in alignment by means of a plastic bolt holder arranged in the interior of the decorative element. Devices for preventing rotation of the decorative element in relation to an associated wheel are also described.