A method of making a composite pipe has the steps of (a) providing one or more sources of composite tape, the composite tape being formed of reinforcing fibres embedded in a thermoplastic matrix; (b) helically winding the composite tape(s) around a cylinder under the application of heat to form a pipe comprising fused, concentric layers of adjacently positioned, helically-wound composite tape; (c) scanning a region where edges of wound composite tape are expected to be, to generate scanning information; (d) controlling the gap between further adjacent windings by (1) using the scanning information to determine wound composite tape edge position(s), and (2) using the determined wound composite tape edge position(s) to adjust the winding process during winding; (e) repeating steps (c) and (d). The invention also relates to a corresponding apparatus for making a composite pipe.

A sash (62) of a window opening up to 180 and capable of tilting is mounted onto a fixedly installed frame profile (63) and houses a pair of superimposing sashes that fit tightly therein when in closure position, i.e. an upper stationary sash (65) and a lower movable-divertible sash (64), each of the sashes (64,65) provided with laterally extending shafts (49) for connection with sash (62), roller wheels (50) provided onto the shafts (49) of sash (64) that roll within a predefined path created by insert guide profile members (19) and diverter guide members (66,68) to alternately bring sash (64) in a position of superimposing sash (65) and a position of alignment with the same. Lifting mechanisms (46) provided with a regulatory screw (84) for adjusting the pretension of a spring component thereof and thereby the force required by the user for moving the sash (64) are installed within the vertically extending sides of the sash (62).

A trailer has a door coupled to the trailer via a hinge along the bottom of the door, a plurality of pulleys coupled to the trailer, at least one cable passing through the plurality of pulleys and tethered to the door, and a mechanism for releasing and withdrawing the cable through the pulleys, thereby actuating the door. The mechanism for releasing and withdrawing may be a hand crank, a motor, or both.

Disclosed herein are improvements for sash windows including a system which can be used with a variety of balancing systems which comprises a jamb liner being mountable in a window jamb for guiding a pair of sliding sashs, the jamb liner having a longitudinal body, the body having a front face configured such that a side of the sashs is slidably and engageably mountable thereto, and an oppositely facing rear face mountable to a recess in a side of the jamb, wherein the rear face of the body is configured such that the jamb liner is securely receivable by the recess and removable therefrom. Further disclosed is a window system having a jamb liner and a pulley device.

An anchor system for securing a lift cable to a bracket of a movable barrier is provided. The anchor system may include a clevis pin sized to be received in a loop of a lift cable of an upward-moving moveable barrier. In some aspects, the clevis pin may include a first interface portion. The anchor system may also include a lock having a longitudinally extending main body having a second interface portion. The second interface portion may be configured to interface with the first interface portion to prevent axial removal of the clevis pin from the loop of the lift cable.

A torsion spring counter balancing mechanism for a stacking panel shutter door includes one or more torsion springs one end of the or each torsion spring is fixable to a drive transmission shaft of the stacking panel shutter door, the drive transmission shaft being adapted to raise and lower the or each shutter of the stacking panel shutter door; and the other end of the or each torsion spring is fixable to a separate rotatable member of the stacking panel shutter door; whereby the mechanism is provided with means adapted to enable both the drive transmission shaft and the rotatable member to rotate, during opening and closing of the stacking panel shutter door, in such a manner as to cause respective ends of the or each torsion spring to travel at different speeds during the opening and closing sequence, which permits to keep the same size motor when panel numbers are varied.

A side-load, hung window assembly can include a sash guide attached to the window sash and extending into a space between the window sash and the jamb channel. The sash guide can include a recess at an outer end to provide clearance for the sash guide to pass over the uncurled end portion of the curl spring and the mounting device. In addition, an aesthetic cover can be disposed over the mounting device. Alternatively or in addition, a spring cover can be disposed over the uncurled end portion of the curl spring and the mounting device.

A constant force window balance assembly for a side-load, hung window is disclosed. A side rail of a window sash disposed in a jamb channel has a first opening. The balance assembly is installed in the jamb channel and engages the sash at the first opening to support the sash with a counterbalance force. A carrier of the balance assembly includes a body having a sash engaging seat located at an upper end that directly engages the first opening in the side wall of the side rail of the window sash. The carrier can also include a lip located at an inner side of the carrier and extending upwardly from the sash engaging seat. The carrier can also include a projection at an upper end of the body to engage a retaining aperture in an uncurled end portion of a curl spring in a pre-installed configuration of the window balance.

A friction based counterbalance mechanism for coupling with a closure panel to assist in opening and closing of the closure panel for at least a portion of a path between a fully closed position and a fully open position of the closure panel, the counterbalance mechanism including: an elongate member positioned on a longitudinal axis extending between the proximal and distal ends of the counterbalance mechanism, the elongate member having a peripheral surface, the elongate member having a proximal end for coupling to one of the closure panel and a body of a vehicle; a travel member having a body and at least one friction member mounted on the body, the travel member positioned on the longitudinal axis for reciprocation there along and for providing contact between the at least one friction member and the peripheral surface, said contact for generating a friction force in a first region along the longitudinal axis and in a second region along the longitudinal axis; and a support member coupled to the travel element at a proximal end and for coupling at a distal end to the other of the closure panel and a body of a vehicle, the support member for guiding said reciprocation. The friction based counterbalance mechanism can be incorporated as part of a biasing strut such as a spring configured strut.

A damping or return device for sliding door leaves, particularly for furniture, is provided. The device includes a rectilinear hollow body made of plastic material, which is slideably associated with a profile that is integral with the top of the piece of furniture and can be coupled automatically and with a snap action to an entrainer. The entainer is fixed to one of the door leaves by way of an adapted carriage. The rectilinear hollow body accommodates a bidirectional shock absorber and interacts selectively with a first or a second magnetized stroke limiting pivot which are associated with a first guide or with a second guide.