Abstract:
Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Abstract:
An automatic closing device for returning a sliding section of a sliding door assembly to a closed position without application of an external force. The automatic closing device has a controlled return mechanism that has an adjustable mass assembly and a spring. The controlled return mechanism generates a force that returns the sliding section to its closed position after the sliding section is opened. The controlled return mechanism has a connector having a first end and a second end. The first end of the connector is attached to a fixed position on the sliding door assembly and the second end of the connector is attached to a top end of the controlled return mechanism. The controlled return mechanism has a pulley assembly having a plurality of pulleys that guides the connector from the top end of the controlled return mechanism to the fixed position on the sliding door assembly.
Abstract:
Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Abstract:
Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Abstract:
A guide and support device (1) for the door (7) of an item of furniture (13) is described, comprising a support (2)—which carries at least one body (3), a second body (4) slidable on the support (2) and a spring (5) placed between the first and the second body (3, 4)—and a cable (6), having one end fixed to the door (7) and the other end fixed to the support (2), which slides at least in a first pulley (8) carried by the second body (4). Preferably, the first body (3) also carries a second pulley (9), at least the first pulley (8) carried by the second body (4) is a multiple pulley and the cable (6) passes in the races of both pulleys (8, 9). The first body (3) advantageously comprises means (10, 11) able to adjust the position thereof at the time of installation of the device (1).
Abstract:
Disclosed is a discretionarily adjustable friction force block and tackle balance system comprising a housing and an adjustable break, wherein means are provided for adjusting the friction force between an inner surface of the housing and the adjustable break. An adjustable balance system comprising a housing, a floating anchor assembly, a fixed anchor assembly, a cord, and an elastic suspension is also disclosed. In an embodiment, the housing is a 3-side or 4-side tube or channel. There is at least one elongated hole or slit on at least one surface of said housing. An adjustable break is mounted inside the floating anchor subassembly. Moving the window sash also causes the floating anchor subassembly to move. When the floating anchor subassembly is moved to a position just under elongated hole on the said housing, the adjust screw installed in the adjustable break is exposed. The desired friction force can be easily created and adjusted by turning the adjust screw in the appropriate direction to splay or retract the adjustable break for balancing window sashes having widely varying sizes and weights.
Abstract:
Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Abstract:
Disclosed are apparatus for a block and tackle window balance including a terminal clip to be incorporated in single and double hung window assemblies. In one embodiment the terminal clip includes a first end portion defining an opening for passing a terminal end of a cord therethrough, a second end portion disposed remotely from the first end portion, and an intermediate portion including a hook and extending between the first and second end portions.
Abstract:
An automatic door closer for a sliding door. The closer has a reel with a cable extending around a pulley on the end of the rod of a return mechanism. In preferred embodiments, the return mechanism is an oil dammed gas spring or a magnetic spring. A spool rotates on a common shaft with the reel and is wound with a flat tape which is attached to the door frame. The reel, spool, return mechanism and cable are attached to the door so that application of an opening force will cause the cylinder rod to retract. Upon release, the stored energy will cause the rod to extend, rotating the reel and spool to wind the tape onto the spool applying a controlled rate closing force. The spool has a core with a greater diameter than the core of the reel so a mechanical advantage exists between the spool and reel and friction is reduced.
Abstract:
The invention relates to an actuating device for a closing element movable in a vertical direction within openings which are guided in lateral guides, with the door weight being taken up by a spring-loaded tension element or being compensated by a counterweight.