Abstract: A wheeled walker convertible to a transport chair. The walker has a strap-type backrest that is pivotally attached to the upper end of the handlebars. The backrest can be placed in a forward position when the apparatus is used as a walker and the user wishes to rest in a rearward facing sitting position and in a rearward position when the apparatus is used as a transport chair and the user sits in a forward facing position and is propelled by a care-giver. A novel braking system locates the brake actuating linkage inside the leg and handlebar members and provides accommodates extension height adjustment of the handlebars. A brake lever system providing a linear pull non-cable brake actuation is also disclosed.

Abstract: A wheeled walker having a moveable carry basket. The walker has a carry basket mounted between the front leg members. The mounting arrangement permits the basket to be moved between a first position in which the basket projects forward of the front leg members for ease of loading and unloading and a second position in which the basket is displaced substantially rearward of the front leg members under the seating surface.

Abstract: The invention relates to a method for processing call signalling messages during a communications switch overload condition. The method integral to the invention comprises a dual threshold test, one based on message latency and the other based on queue occupancy. The method begins with the receipt of a plurality of call signalling messages comprising dispensable, indispensable and essential messages. The processing then continues by comparing a new message expected latency with a latency-based threshold. If the new message expected latency compares unfavourably, the queue occupancy is then compared with a queue occupancy based threshold. If this comparison is also unfavourable the call signalling messages are processed based on call type. Using the expected latency as a threshold ensures that no dispensable message has a latency greater than a tunable threshold.

Abstract: An exhaust modification system for an all terrain vehicle which reduces the exhaust noise of the vehicle and reduces the possibility of hot particles being discharged with the exhaust gas so as to ignite readily combustible material upon which the particle might land. The exhaust modification system includes a muffler, at least two length of flexible exhaust pipe, exhaust pipe clamps, and mounting brackets for suspending the muffler from the all terrain vehicle.

Abstract: A holder for an apparel belt which can be used as both a display holder and as a storage package. When used in either the display mode or the storage mode, the holder protects the belt from being scratched or otherwise physically damaged. The holder has a sleeve with an opening at one end thereof for receiving the strap of the belt, and a sleeve extension attached to the open end of the sleeve which acts as a backdrop for the exposed portion of the belt when the holder is used in its display mode and acts as a cover for the buckle when the holder is used in its storage mode. In the display mode, the holder is hung on a merchandising display rack from an orifice in the free end of the sleeve extension. The sleeve extension has a means for retaining the buckle and a portion of the belt strap outside the sleeve to expose that portion of the belt. In the storage position, the buckle end of the belt is detached from the retaining means on the sleeve extension and the strap is more fully inserted into the sleeve.

Abstract: A leakage current protection device, such as a ground fault circuit interrupter (GFCI), is provided that can be used in single phase or polyphase systems, with a range of input voltages from 70 to 264 volts AC, frequencies of 50 or 60 hertz, and ground fault trip currents of 6 to 30 milliamperes. A leading power factor circuit is connected to the secondary winding of the GFCI differential transformer to permit the magnetic circuit to respond to pulsating DC signals. Provision is made for continuing to provide GFCI protection in the event of an open neutral lead, with a timing circuit to prevent current flow to the ground lead until current flow in the neutral lead is completely discontinued. Various types of circuit interrupting devices, such as a circuit breaker or a power converter, may be selectively utilized.

Abstract: A die and a method for forming a die to produce optically varying effects in a light reflective surface. A design generally formed as a plurality of parallel grooves of varying widths and depths are engraved in a soft metal foil adhered to a substrate. A hard metal coating is formed on the engraved soft metal foil in a metal plating bath. The hard metal coating, removed from the soft metal foil provides a die formed as a mirror image of the grooves engraved in the soft metal foil. The die is used to deform a reflective surface such that the surface produces optically varying effects. A die formed in the same manner with further processing is used to both deform a reflective surface and hot stamp it to a substrate.

Abstract: A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and a trailing edge (52) respective to rotation of the first roll unit (32), a second die support (46) carried by the second roll unit (34), having a leading edge (51) and a trailing edge (52) respective to rotation of the second roll unit (34), the first and second roll units (32, 34) receiving a web workpiece (12) in a forming plane between the first and second roll units (32, 34), and in which each die support (46) includes a first part (46a) carried by the respective roll unit and including the leading and trailing edge and a second part (46b) having a platen surface for mounting a die, the second part (46b) being mounted on the first part (46a) for reciprocal motion transverse to the leading and trailing edges (51, 52).

Abstract: An electrical system, such as a system for providing power to an appliance or a building, includes arcing current protection, either in connection with or separate from a ground fault circuit interrupter (GFCI). In one embodiment a sensing lead is located between a power line and a neutral line conveying power to the load, but is not connected to the load. The sensing lead is preferably larger than the power line and neutral line. Also, an integrity checking device may be connected from the sensing lead to the power line to determine continuity of the sensing lead, but current flow through the integrity checking device is limited to a very small magnitude. When an arcing current above a predetermined magnitude occurs in the sensing lead, an SCR is triggered to open the circuit. The sensing lead in such an embodiment may be the ground line of a three line system.

Abstract: A high pressure shower system for cleaning perforations in a suction roll of a paper-making machine is disclosed. An elongated header pipe is mounted to the outside of the suction box and is fitted with a plurality of spaced high pressure nozzles directed at and in close proximity to the inside surface of the suction roll. The header pipe is driven in a longitudinal reciprocating manner providing complete spray coverage of the suction roll perforations. The water supply conduit to the header passes through the inside of the suction box which has a sealed slot opening to accommodate the reciprocal movement of the header.

Abstract: A construction panel for use in the erection of buildings comprising a panel of castable construction material of predetermined thickness, and having first and second sides; a plurality of structural members, reinforcing the panel on one side, at least some of the structural members comprising a generally linear edge, and a generally zig-zag edge, and a web extending between the linear edge and the zig-zag edge, the zig-zag edges defining apexes, and root portions; the apexes, being embedded in one side of the panel thereby securing at least some of the structural members to the panel; recesses formed in the web extending substantially from the apexes to the root portions; and, generally triangular indentations formed in the web throat portions adjacent to but spaced from the recesses. Also disclosed is a method of constructing a level portion of a building.

Abstract: A cooled magnetic chuck or cooled magnetic adapter for use with a magnetic chuck. Coolant passages are formed in a magnetic chuck, or in a cooled magnetic adapter for transmitting the magnetic forces of a magnetic chuck to a work piece, such that the heat generated in the workpiece by engagement with a material removing tool may be conducted away from the workpiece. The coolant passages are arranged such that a coolant fluid engages the magnetic materials of the magnetic chuck or adapter, portions of which magnetic material also engage the workpiece.

Abstract: An apparatus is disclosed for introducing a free-flowing balancing material into a tire through a tire valve stem. The apparatus comprises a container for confining a predefined amount of free-flowing balancing material, and a flow path for pressurized air which extends from the source of the pressurized air to an air inlet, from the air inlet to a mixing chamber in communication with the container through an opening, and from the mixing chamber to an air outlet. The flow path has a pressure regulator therein, a venturi nozzle within the mixing chamber to accelerate the air flow and lower the air pressure within the mixing chamber to draw the free-flowing balancing material from the container into the mixing chamber; and a chuck for introducing the mixture of free-flowing balancing material and pressurized air from the air outlet and into a tire valve stem.

Abstract: A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and a trailing edge (52) respective to rotation of the first roll unit (32), a second die support (46) carried by the second roll unit (34), having a leading edge (51) and a trailing edge (52) respective to rotation of the second roll unit (34), the first and second roll units (32, 34) receiving a web workpiece (12) in a forming plane between the first and second roll units (32, 34), and in which each die support (46) includes a first part (46a) carried by the respective roll unit and including the leading and trailing edge and a second part (46b) having a platen surface for mounting a die, the second part (46b) being mounted on the first part (46a) for reciprocal motion transverse to the leading and trailing edges (51, 52).

Abstract: A paperless recorder for recording pressure and alarm condition data from a fire controller for a fire pump control system. The fire pump is connected a pipe network which has a pressure sensor for sensing pipe pressure. The recorder is connected to the pressure sensor and checks for pressure changes. When a pressure change is detected, it is stored in an electronic memory. Pressure readings are also periodically stored in the electronic memory. The recorder may also monitor alarm voltages and alarm contacts which may also be stored in the electronic memory. The stored data may be transmitted to a computer via modem or port connection for further analysis.