Abstract: In a telephone of the type wherein the receiver emits both voice and ringing signals, a gravity switch is electrically connected in parallel to a resistor, and such parallel connected elements are coupled between the ringing circuitry of the telephone and the receiver. Both the receiver and the gravity switch are housed within the telephone handset. When the handset is in its normal position the gravity switch provides a conductive path for the ringing signal from the ringing circuitry to the receiver. However, when the handset is tiltably displaced from its normal position, the conductive path through the gravity switch is broken, thereby causing the ringing signal to traverse the resistor. Passage of the ringing signal through the resistor results in the attenuation of this signal. Thus, when the handset or gravity switch is in its normal position, the receiver emits an audible ringing signal at a predetermined maximum decibel level.
Abstract: A brake compensator for a vehicle using a resilient device or resilient elastomeric material which is connected to the cable or the cable sheath of a cable-controlled brake, and is extended or compressed in response to a force applied thereon when a brake is applied. In one embodiment, the resilient device is disposed between the sheath and the frame of a vehicle, and is arranged so that the control cable passes directly through the compensator and to a brake caliper. In a further embodiment, the brake compensator may be disposed between the sections of sheath around a continuous brake cable. This arrangement avoids the need for an assembly to mount the compensator to the vehicle frame. Apparatus is shown for pre-loading the resilient device and thereby advantageously adjusting for different product and rider characteristics. Additionally, structure may be provided for limiting the maximum compression, beyond which the cable and sheath operate in a conventional manner.
Abstract: An alarm system includes a security loop comprising a plurality of sensors, a circuit connected to the security loop and an alarm. The circuit is responsive to a change in condition within the security loop, and upon any change over a threshold value or substantially any change which is rapid, irrespective of value, the responsive circuit functions to enable the alarm. The alarm may be of audible and/or visual-type with additional capability of signalling a remote control center. The responsive circuit includes a network for self-balance thereby to compensate for changes which are responsive to ambient conditions.
Abstract: A system for connecting wall partitions or panels together wherein sets of two cross-drilled blind holes are formed in the ends of the partitions to be joined, one hole being of smaller diameter and opening on the end surface of the partition and the other hole of larger diameter opening on one of the side faces. The connector hardware involves three basic parts including a cylindrical plug member, in the larger diameter hole and has a threaded axial bore in one end and a communicating cross bore toward the other end, which bore also communicates with the smaller diameter hole. A second cylindrical connector member, is closely accommodated in the smaller diameter hole and in the cross bore of the plug member, and has a threaded axial bore in one end and a tapered groove or waist portion along its length. The third connector part constitutes a screw member that is adapted to be screwed into the axial bores in each of the cylindrical members.
Abstract: The control system maintains air temperature comfort in a zone of a commercial structure. Outside air is supplied into the zone for ventilation purposes and for cooling the zone to the desired temperature whenever possible to minimize the use of mechanical air cooling apparatus and thereby reducing energy consumption. Heating and cooling coils temperature condition the supplied air. A pneumatic control system selectively activates the heated, cooled or ventilated air supplied in the zone. A two-speed supply fan, controlled by the pneumatic control system, operates in a first state at only low speed to reduce energy consumption, or in a second state at automatic thermostat two-speed control (high or low). The fan in this second state operates at low speed except when maximum cooling is required and then switches back to low speed operation from high speed when the ambient temperature in the zone approaches the desired temperature.
Abstract: A device for controlling the application of braking action to a vehicle having at least two wheels, one wheel being a forward wheel, the other wheel being a rearward wheel, each wheel having associated therewith, means for braking and unbraking the rotation thereof in response to displacement inputs directed thereto and forward and rearward associated operator control means. The device comprises movable control means positioned intermediate the forward and rearward braking means and the associated operator control means, means operatively communicating the movable control means with the rearward braking means, means operatively communicating the rearward operator control means with the movable control means and with the associated rearward braking means, means operatively communicating the movable control means with the forward braking means, and means operatively communicating the forward operator control means with the movable control means.
Abstract: In combination, a clothing hanger having a hook portion; and a marker device which includes a marking surface adapted to carry identifiable indicia, and clasp means protruding from one side of the marking surface for detachable connection to the hook portion. The hook portion includes retaining means which, in one preferred embodiment, comprises at least one stop means which extends along at least a portion of the hook portion and is arranged for restricting uncontrolled downward movement of the marker device along the hook portion.