Abstract: A headlamp control system and anti-theft alarm system share a relay which powers the headlamp circuit of a vehicle in one position and enables use of the horn in an alarm circuit in the other position. Delay times operate at ignition switch turn-off to control headlamps, if illuminated, and to permit arming of the alarm and exiting the vehicle before the alarm becomes fully active.

Abstract: An energy-saving refrigeration system capable of reducing the quantity of energy and the cost required to operate refrigerators while contributing to greater efficiency in the operation of the utility facility that supplies the energy is provided by treating separately the functions of producing cold and using that cold to accomplish refrigeration. Cold is produced in a compressor, condenser evaporator combination, and is stored in a cold storage unit from which it is removed, by heat input, at selected times. The times of cold production and of cold utilization are selected so that they accomplish a continued and adequate refrigeration function while transferring most energy usage from the highest cost peak load period of the energy source to another time. Certain features, including a cold storage unit and shroud, enhance efficiency. The method of defrost and case condensation control additionally reduces energy required for evaporator frost and case moisture removal.

Abstract: A variable impedance device which serves to improve performance and reduce radio frequency emissions in electrically fired internal combustion engines employs a mixture of granulated or powdered bronze, or the constituents of bronze and of silica compacted and continually compressed for connection in series with the ignition wiring of an engine. The proportions of metal and silica are such that an irregular but complete conductive pathway is formed through the mixture. In preferred form the powders or granules are compressed within a fused silica lined sheath of stainless steel.

Abstract: A four-terminal radio frequency interference filter is described which combines a series connected parallel tuned circuit with a pair of capacitors to form a pi network. In one refinement, a quarter wave coaxial stub and a zener diode are connected in parallel with one another and with one leg of the pi network. The series combination of a diode and a resistor are connected in parallel with the other leg. Filtering is improved by inductive coupling between the diode-resistor circuit and the coil of the tuned circuit.

Abstract: A building suitable for use as a greenhouse within which to conduct hydroponic gardening is formed by a pair of side walls and a pair of end walls each of which is provided with a peripheral frame. It is covered by a roof that also has a peripheral frame that fits within the upper portions of the frames of the several sides. The roof is covered with a sheeting material which extends beyond the margins of the frame and is resilient whereby those resilient extensions rest upon the upper portion of the frame of the several sides in assembled condition and form a seal between the roof and sides. Similar extensions of sheeting beyond the peripheral frame of the sides provides sealing at the vertical corners of the building. The sides and roof are secured together by fasteners that can be selectively fastened and unfastened from the interior of the structure permitting complete dissembly and reassembly of the building at will.

Abstract: A belt driven tape cartridge employs a pair of tape reels on fixed spaced axes within a cartridge case and on which a tape extending between them is convolutely wound to form tape rolls. Tape is transported between reels when the reels are driven by a taut belt that extends between the rolls and around a drive roller at one side of a line connecting the tape reel axes and around an idler roller at the other side of that line. The drive roller rotates on a fixed axis which in preferred form is equidistant from the two tape reel axes. The idler roller rotates on an axis that is parallel with the other axes but is free to move laterally.

Abstract: A pulse modulation system in which both ends of the pulses of a train can be modulated in time relative to time marker signals, permits establishment of a four-channel, time division, duplex communication system on a single radio frequency carrier. The modulation technique permits pulse width modulation of signals whose band width exceeds the pulse repetition rate.Such a system can provide relatively narrow band, low noise, communication, and it is applicable to transmission and reception of high quality stereo signals. Moreover, it can provide private, secure radio communication between two stations, one of which transmits a train of pulses one edge of each of which is unmodulated to form time marker signals. The formation of the other edge of the pulses of the train is modulated in time with some variable information, or data, but only if the pulse train received from the other station has one edge of its pulses modulated with an identification signal.

Abstract: Motion is departed to the water in water beds by periodically lifting a region of the lower surface of the water bed mattress, said region being contained somewhere within the outer margins of the water bed. A water motion that is more uniform and more acceptable in practical applications is provided by lifting a region at least one of whose margins is not parallel with the plane of any of the sides of the water bed mattress. In a preferred embodiment, it is a triangular section of the bottom of the water bed that is lifted, and the lifting is accomplished by tilting that triangular section upwardly toward the upper wall of the apparatus and by accomplishing that tilting from the apex of the triangular region. In a refinement of the action, a means is provided for adjusting the lifting action in frequency or degree to achieve a relationship with the natural resonant frequency of water movement that produces a pleasant bed motion.

Abstract: A vibrator is prevented from transmitting its vibratory motion to the vibrator holder, such, for example, as a handle, by interconnecting the vibrator and handle with a spring arranged so that the spring serves as a resilient cantilever. Amplitude of vibrations are enhanced without a corresponding increase in the amount of vibration transmitted to the handle by arranging the resilience of the spring and the mass of the vibrator to be resonant at the frequency of vibrations or at a submultiple of those frequencies.

Abstract: To permit safe operation of clutch actuated moving ram machines, especially when the operator is to be permitted to "float" the ram, the operating linkage to the clutch is formed with a connection which requires input motion of the linkage in predetermined degree to actuate a safety mechanism. The purpose is to prevent ram operation until the operator is out of harm's way. The linkage is formed such that additional motion of the input elements to the clutch is ineffective to actuate the clutch until the safety apparatus is properly positioned whereupon such additional motion of the input member is made effective to actuate the clutch. An apparatus effective to perform according to that method comprises a piston and a cylinder capable of movement relative to one another and both capable of movement relative to a frame on which the clutch is mounted.

Abstract: The task of identifying the terminals to be interconnected and not interconnected, and whether connection is proper in a complex electrical system, such as at the main distribution frame of a telephone central office, is made possible while the system is in operation under power without adversely affecting its operation of being adversely effected. This is done by connecting the combination of a load impedance and a test voltage source across the test points and measuring the voltage across the load. If the measured voltage exceeds the test voltage, the load impedance is maintained at a high value. If it does not exceed the test voltage, the value of the impedance is reduced for the test. Thus, the test impedance is either greater or lesser than the impedance presented by the telephone system at the test terminals. The test results are interpreted in the view of whether the test terminals should or should not be connected when properly wired.

Abstract: An ion sensitive electrode structure employing concentrically arranged inner and outer tubular members employs a porous plug to seal the annular space between the tubular members and to enable formation of a salt bridge. The plug is made of porous Teflon and, in preferred form, it is combined with an encompassing sealing annulus which seals an annular space between the outer wall of the plug and the inner wall of the outer tubular member. In a form preferred for some applications, two such plugs and sealing annulus' are employed and are held separated by a spacer.

Abstract: A method and an apparatus is provided by which automatic or semi-automatic processing of integrated and printed circuit devices can be accomplished notwithstanding that the points at which processing must be accomplished have been displaced from their assigned positions by translation and rotation. The method involves measurement of displacement of some circuit points from their designated positions in a specified sequence. That is coupled with a physical positioning and orientation of the device relative to the process apparatus and with approximate calculation. An apparatus is disclosed by which the measurements, sequence of measurements, orientation, and computation required can be accomplished.

Abstract: Conductor wires are laid in parallel, one between a respectively associated pair of the coils of a helically wound coil spring while the coils are separated. Thereafter, the coils are moved together so that the conductor wires are pinched between them. One end of each of the wires is fluxed and then tinned with solder in dipping steps. Subsequently, the conductor wires are disposed in respectively associated ones of a series of parallel grooves formed in a conductor holder. The grooves are directed toward cavities in which elements to which the wires are to be bonded are suspended. The conductors are urged into engagement with those elements and hot air is made to flow into the cavity where the solder tinning is rendered molten whereby solder bonding is effected when the supply of hot air is terminated. The process is facilitated by the use of stops in conjunction with a coiled spring such that the conductor wires have their ends arranged in a common line prior to dipping and tinning.

Abstract: An intubation set is disclosed which incorporates a special fastening means by which the tube can be fixed conveniently and effectively to the body of a patient at a point adjacent to the body opening into which the tube has been inserted. The set includes a special connector by which it may be securely associated.