Abstract: According to an aspect, an inductor damper circuit includes a shared magnetic core, a primary winding, and a secondary winding. The primary winding includes an inductor winding of a first wire gauge wound about the shared magnetic core. The secondary winding includes a resistive damper winding of a second wire gauge that is less than the first wire gauge and wound about the shared magnetic core in contactless magnetic coupling with the primary winding.

Abstract: A hand held device (10) for measuring automatically the Hormonal Quotient and correlated hormonal status of an individual, providing a measure of index finger for ring finger. The device (10) includes a base (30) upon which a concentrically arranged disc (40) is rotatable mounted by a central fastener (11). The base (30) carries a ruler face (32), a first finger-length logarithm scale (36), a Hormonal Quotient logarithm scale (38) and an arrow indicator of the gonadal hormone exposure index (39). The disc (40) carries a second finger-length logarithm scale (42) and the Hormonal Quotient arrow (44). When scales (42) and (36) are properly aligned the Hormonal Quotient arrow (44) inserts automatically into the resulting Hormonal Quotient in the Hormonal Quotient scale (38) and the correlated gonadal hormone exposure (39).

Abstract: A data storage device comprises a memory in which a collection of prostate cancer screening data is stored. The screening data is obtained from a selection of the general male population without medical pre-selection. A device for indicating a risk for a disease of an individual, comprises an indicator for indicating a determined value for said risk. The indicator comprises a risk scale representing a range of values of said risk, and at least one dialler for entering a value of a diagnostic parameter of an individual. The dialler comprises a parameter scale representing a range of values of said diagnostic parameter. The dialler is movable with respect to said indicator such that when a parameter value on said parameter scale is selected, an associated risk value is indicated on said risk scale according to a predetermined mathematical relationship.

Abstract: A time period calculator employing a base, a calendar disc, a calculation disc and a cursor. The calendar disc includes divisions identified by months and days of the year about a common axis. The calculation disc is divided into increments of time in days, weeks and months from zero consecutively in both clockwise and counterclockwise directions for measuring time periods prospectively and retrospectively, respectively. The base may include divisions divided into 1/365th segments with day of the week indications thereon. The cursor includes line segments offset over the calendar disc divisions by one day so as to accommodate leap year calculations.

Abstract: A wind and course calculator for navigation is provided comprising two superimposed disks made from a transparent material, a mobile disk 1 movable in rotation and in translation carrying a network of concentric circles corresponding to the speeds and of converging straight lines corresponding to the angular values of headings and a supporting disk 2 having a mark 5 indicating the heading and, at its periphery, graduations corresponding to the angular values of sailing trims of the boat and a scale of speeds 7 carried on the radius directed towards the indication of the heading, on the reverse side of which supporting disk is fixed a pointer 10, 11 having a slider 12 carrying a reference dot 13 serving as display and reading point. The upper face of the supporting disk has two parallel guides 3 between which the mobile disk 1 slides.

Abstract: A mechanical calculating device is provided which is particularly useful in determining the relationship of the heavenly bodies to specific heavenly positions at different times. The device, in the embodiment to be designed, comprises a base, a first disc rotatably mounted on the base, which has inscribed about its periphery a ring scale divided into twelve sectors each marked with a different Zodiacal sign, and each sector is subdivided into thirty indices each representing one degree of arc. A plurality of transparent discs are rotatably mounted on the base in concentric relationship with one another and with the first disc, the latter discs representing the sun, the moon and the various planets. The latter discs are each provided with an identifying tab, and each is inscribed with a series of lines extending outwardly from a common point adjacent to the tab at selected angles to one another, with each line having a selected color.

Abstract: An improved circular sliderule for use in many applications wherein it is desired to provide a sliderule having superimposed disc elements which may be freely rotated without disturbing the previous setting of the adjacent discs. The novel improved calculator comprises providing a separating spacer element to be positioned between each disc of the calculator and with each spacer element having formed thereon means for retaining the rotation of the spacer element whenever superimposed discs are rotated. The retaining means may comprise a series of protruding arms, one extending outward from each of the separating spacer elements, joined at their outer ends and locked to the base plate of the calculator which is not rotatable. Alternately the retaining means may comprise the spacer element having formed on an internal hole at least one protuberance which is designed for mating engagement with an engaging means in the form of an elongated slot formed in the central hub which is locked to the baseplate.

Abstract: A device for selection of compressors, condensers, expansion valves, and evaporators for air conditioning or refrigeration systems.

Abstract: Daily engine checks or health tests are being developed for determining the ondition of an engine by relating significant performance parameters. One such health test, termed "HIT," utilizes exhaust gas temperature along with compressor speed. Since results of this test vary with outside air temperature conversions must be made by maintenance personnel and pilots. A calculating device is provided for this use.

Abstract: This invention relates to a manually operable calculator; used to determine percent scores and to weight tests, comprised of a circular disc having a centrally pivoted rule. The disc has an outer periphery of numerals indicating per cent scores, the radii of numerals below 100 per cent indicating perfect scores, the radii of per cents other than one hundred indicating raw scores, and numerals on the rule corresponding to numerals on the radii below 100 per cent.