Abstract: A torque measuring device is disclosed wherein a torque of a rotating member rotating about an axis is measured. The device includes a support member which is attached to a fixed object such as a stationary frame by at least two linkage arms. Each linkage arm is pivotably attached at a first point of attachment to the fixed object and at a second point of attachment to the support member. The relative positioning of the rotating member, the support member, and the linkage arms is such that geometrical lines interconnecting the respective first and second points of attachment of each linkage arm substantially intersect the axis of the rotating member. The rotating member is in an operative relationship with the support member so that the rotating member during its rotation imparts a force to the support member, which attempts to rotate the support member.An instantaneous center of rotation of the support member coincides with the axis of rotation of the rotating member.

Abstract: Communication over data links using binary synchronous protocol that is to be made secure according to the Federal data encryption standard (DES) is enhanced by utilizing an encrypted message format wherein the initialization vector for the DES algorithm is at the trailing end of the message. Additional information or control words may also be strung at the trailing end of the encrypted message format without causing throughput loss while enhancing the security and flexibility of the encrypted message in both point-to-point and multipoint systems.

Abstract: A musical instrument for cooperation with an electronic synthesizer having a parallel-control fretboard on a mountable neck member. Electronics associated with the neck member provide accurate volume, gate and frequency control signals for a synthesizer while still permitting normal guitar playing nuances such as hammer-offs, hammer-ons, slides, muting, and bends. A preferred embodiment employs a micro-processor and a multiple string fretboard.

Abstract: An improved infrared detector system includes a pair of thin film thermopile sensing elements that receives reflected energy from aspheric reflectors that are designed to provide optimum energy resolution. An absorbing coating can be placed above the sensors and extending beyond the periphery to improve the signal to noise ratio. A high gain low noise D.C. amplifier is coupled to the output of the infrared sensing elements while a high pass amplifier and low pass amplifier are designed to pass an amplified signal in the frequency range from approximately 0.2 Hz to 15 Hz. Finally, a combined peak detector and time dependent integrator summing amplifier circuit provides an enabling predetermined threshhold detection gate that requires either a predetermined large signal level or a multiple of small electrical signals within a preselected interval to produce an alarm enabling signal.

Abstract: A low-cost, two-piece medical valve with improved reliability which can be made utilizing a broader range of materials then heretofore possible and capable of manufacture with easily maintainable molding tolerances. These improvements result from the incorporation of a straight cylindrical seal between the valve core and body permitting limited axial movement. The valve is molded in such a manner to create a strong interlock between the valve ports and to eliminate heavy sections of plastic adjacent to the sealing area of the valve.

Abstract: An improved process for preparing 1,3-dialkyl-1,1,3,3-tetraryldisiloxanes and 1,3,5-trialkyl-1,1,3,5,5-pentaaryltrisiloxanes is disclosed. The process utilizes an aryl Grignard reagent to affect displacement of alkoxy, preferably methoxy, groups in the corresponding alkyl-alkoxy substituted di-, and trisiloxanes. Alternatively, partial replacement of the alkoxy groups in an alkyltrialkoxysilane with aryl groups in a Grignard reaction, and subsequent hydrolyis of the remaining alkoxy groups yield the above-noted desired compounds.

Abstract: A pentagonal prism for use in a viewfinder of a single lens reflex camera is made of a glass whose refractive index and Abbe number are not less than 1.6 and 45, respectively. Effective optical path regions on a pair of roof surfaces of the prism are left transparent so that viewfinder light can be totally reflected at both of the roof surfaces. A light absorbing paint is coated in an upper front surface, a pair of said surfaces of the prism as well as at regions other than effective optical path region of the roof surfaces, a bottom light incident surface and a rear light exit surface of the prism. The light absorbing paint prevents the occurrence of ghost images in the view field of the viewfinder. New type glasses suited for the prism are proposed.

Abstract: A toy having a chassis generally configured to simulate a cash register and a mechanism for numerically displaying a price of specific merchandise depicted on a card, is disclosed. The mechanism includes a first and a second panel of the chassis which define a slot wherein the card is at least partially positioned for pictorially displaying the merchandise. A member or plate positioned in the slot supports the card in its position wherein the merchandise is pictorially displayed. The member or plate may be removed through a child actuated lever mechanism to allow disposition of the card behind a plurality of transparent portions of the first panel. The transparent portions of the first panel are configured and adapted for displaying a plurality of numerals when reflection of light is blocked in predetermined parts of the transparent portions.

Abstract: A toy configured to simulate an insect with wings is disclosed. The toy has a main body section to which a tail and a head section are attached to form an insect body. Two wings are rotatably mounted for disposition on both lateral sides of the main body section. A mechanism is provided to cause simultaneous flapping of all the wings. A cavity having a pivotable cover plate is provided in the head section. Various toy appendages such as a toy doll may be placed in the cavity.

Abstract: A tracking filter for tracking the frequency component of highest intensity of an input signal is disclosed in a hand held FM radar device. The tracking filter includes circuitry for providing a high pass signal, a bandpass signal and a low pass signal, all of which are representative of the frequency components of the input signal. An error signal generating circuit utilizes the high pass and low pass signals to control the characteristic frequency associated with the high pass, low pass and bandpass signals. The radar device further includes circuitry for displaying a distance output on an LED display and circuitry for providing an audio signal indicative of target distance.

Abstract: An eye fundus oximeter adapted to measure spectrally the oxygen saturation of the blood in the fundus of the human eye. The oximeter includes an illuminating optical system (8, 21, 10) for first illuminating the fundus of the patient's eye (11) with light of a wide wavelength range and then illuminating the same with light of four different spectra, a photoelectric element (13) for receiving the four kinds of light directly and not via the patient's eye and a photoelectric element (16) for receiving the four kinds of light impringing on the fundus of the eye and then reflected therefrom. The outputs of these photoelectric elements (13, 16) are compared at each of the same spectra, the results of such comparison being subject to given arithmetic operations to evaluate the oxygen saturation.

Abstract: An avionic wire clamp assembly having a flexible strap member connected to a housing member is provided. The flexible strap member is adapted to coil about an object such as a wire bundle and to be relatively tightened by the rotation of a fastening member mounted within the housing member. The housing member is mounted within a flexible bracket that has been designed to permit a releasable relative movement with the housing member at a predetermined force to prevent an over tightening of the strap. One of the fastening member and housing member has a locking detent while the other has a complimentary tine for interengagement therewith to provide a lock position to prevent any unintentional release of the strap member.

Abstract: A toy oven assembly having a light bulb acting as a light and a heat source, is disclosed. The toy oven includes two identical component parts which are assembled to one another. In their assembled form they incorporate a substantially circular opening on a substantially horizontal top surface of the assembly. The circular opening is surrounded by a rim. A translucent or transparent dome shaped member is disposed above a heating chamber of the toy oven assembly and is held by the rim so that during operation of the toy oven assembly the dome shines with light giving the toy an interesting science fiction like appearance.

Abstract: A lighting device which is well adapted for inviting public attention by a conspicuous and decorative display of bright lights, is disclosed. The device includes at least one light source which is moveably mounted to a base. A motor and drive mechanism including a bent shaft is operatively associated with the light sources to orbit each light source around a respective center point. In many embodiments of the invention the drive mechanism is also adapted for continuously varying the angular positioning of each light source and of the emitted rays of light relative to the vertical direction.

Abstract: A toy figure configured in the shape of a toy doll, or toy animal or the like is disclosed. The toy figure includes a trunk portion having a substantially hollow interior and a head and limb portions. The trunk portion has a plurality of groups of slots, with each group of slots having individual slots in communication with one another. A plurality of deformable elastic members, preferably rubber cords, are attached to the interior of the trunk. Each deformable elastic member is led through one slot of at least one group of slots. The head and each limb is attached to one of the elastic members which are under sufficient tension to hold a substantially flat mating surface of each limb in contact with the trunk. The head and each of the limbs may be repositioned relative to the trunk by moving the corresponding elastic member from one slot to another within the same group of slots.

Abstract: An optical conversion attachment assembly for objective camera lenses is provided to convert a lens into a monocular optical device. A camera exchangeable lens can be detachably mounted on the barrel of an optical attachment having an erecting prism and an ocular system to vary the diopter power. The optical attachment further provides a device for automatically contacting and holding the diaphragm of the camera exchange lens at a maximum aperture opening.