Abstract: A method is provided for counting cut sheets such as bank notes. A loose bundle of cut sheets is supported in a predetermined posture, and the cut sheets of the supported bundle are successively fed obliquely relative to an edge of each remaining cut sheet of the supported bundle. Passage of a corner of each successively fed cut sheet across a predetermined position is detected, and the resulting detection signal is processed to provide a count of each successively fed cut sheet.

Abstract: A retirement calculator for calculating a salary replacement value independent of current salary and a method of computing a total salary replacement value are disclosed. The retirement calculator is made up of a sleeve having an open end and a plurality of windows, and the calculator has an insert with a plurality of age values and a plurality of preliminary salary replacement values printed upon it. When the insert is inserted or positioned in the open end of the sleeve, one of the age values is visible through one of the windows on the sleeve. The preliminary salary replacement value corresponding to the visible age value is then visible in another window.

Abstract: The present invention provides methods and apparatus for readily determining the value of the imaginary number "i" raised to different exponential powers. Calculations pertaining to the imaginary "i" are commonly encountered in engineering, mathematical and scientific calculations and analysis. In accordance with the present invention, the value of "i" raised to any magnitude of exponential power is readily determined based upon the values of the "ones" and "tens" place of the exponent, including whether the "tens" value is an even or odd integer. Different apparatus are provided for readily calculating the value of the imaginary number "i" for any natural number of exponential power.

Abstract: A device for providing the modulus and loss factor values of a damping material based upon temperature and frequency which includes (i) an insert having (a) temperature isotherms on one side, and (b) graphs of the modulus and loss factor values for the damping material as a variable of temperature and frequency on the other side, and (ii) a sleeve for the insert which has (aa) a temperature isotherm display window for displaying the temperature isotherms on the insert, (bb) a frequency scale proximate the temperature isotherm display window, and (cc) a means for highlighting a modulus value and a loss factor value from the modulus and loss factor graphs provided on the insert.

Abstract: A recorder of multiple events and durations of time, using one or more rotatably mounted dials graduated in a clockwise direction, with a means for displaying temporary memoranda which describe events associated with the said graduations, and used for directly recording and reading the actual or simulated times of one or more events either in absolute time or relative to the current time.

Abstract: The invention relates to an improved slide rule type of apparatus that provides visual solutions to trigonometric problems. The invention provides a cheaper to make and easier to read trigonometric slide rule.

Abstract: An estate and gift tax estimator having a two-sided pocket part consisting of separate layers of semi-rigid material, whereby each layer is provided with a series of windows for viewing an insert card which is slideably engaged between the two layers defining the pocket. The insert card has a series of columns of numerical data corresponding in location to the windows on the outer layers, such that at least one column corresponds to taxable assets and the other column is a calculation of the estate tax applicable to that amount of taxable assets thereby allowing for the estimation of taxes between the calculated levels. The columns are adjacent to each other such that when a number corresponding to a taxable asset appears in a window, the corresponding estate tax estimate appears in the adjacent window. The insert card is interchangeable and may be oriented in any manner in the pocket part while providing accurate estimations of the estate tax.

Abstract: A musical scale determining device which takes the form of a conventional slide rule configuration. The device includes a sheet material body. Upon both the front and back surface are printed conventional musical notes in specific arrangements. A cursor is movably mounted on the body with the cursor including a plurality of transparent windows through which are to be observed the conventional musical notes on both the front and back surfaces of the body. Movement of the cursor in various positions is to disclose to the user a wide variety of different types of musical scales.

Abstract: A temperature and humidity indicator is provided by a plurality of liquid crystals sensitive to different temperatures which form a graduated scale and a plurality of paper segments impregnated with an inorganic salt sensitive to humidity forming a second graduated scale on a supporting sheet. The crystals change color with temperature and the paper segments change color with humidity. The two scales provide the vertical and horizontal axes of a table of equilibrium relative humidity and ambient relative humidity values for paper sheets or rolls to be printed on and the air surrounding the sheets. Readings are taken from the table to determine the differences in himidity between the air and paper. A second parameter table indicates ranges of differences which should not be exceeded under various printing conditions in order to prevent the occurrence of printing problems.

Abstract: A punch-out stylus for use with a tabulating device particularly for handicapped persons has a generally elongated body section with a rigid rod member extending axially from one end therefrom and having a tip designed for removing chad from a pre-scored card. An enlarged body portion is attached to the other end of the elongated body section and has an indentation along one side adapted to receive the thumb of the stylus user as the enlarged body portion is gripped.

Abstract: Apparatus for presenting tidetable data in a form visually readable to the average person in terms of the year, month, day and hour of occurrence, exacting information regarding current flow, i.e. the direction of current flow, the relative strength of current flow, and the period of current flow, at a given location. A preferred apparatus is comprised of a stator, and slide. The stator is suitably an elongate member along a horizontal side of which days of the week are scribed and scaled off in consecutive order, preferably with each daily period being further sub-divided into a morning period and evening period. The morning and evening periods are in turn sub-divided into hourly periods. A vertical scale provided on the stator ranges from a base line of zero upwardly, or in a positive direction, to a high point representative of the tidal range, and downwardly below the base line of 0, or in a negative direction, to a low point representative of the tidal range.

Abstract: A device for foretelling the typical weather in a given locality for any month of the year, based on actual historically recorded weather data, is provided. The device is in the form of a hand held sleeve member having front and back panels and an insert member which is relatively slidably contained within the sleeve. A large amount of weather data in a useful format is assembled on the faces of the insert member. The sleeve member with a front and a back panel contains openings or windows in the panel and, imprinted contiguous to the windows, the cities or locations of a given geographical area. The device permits the weather information in the desired location to be quickly read out through the window from the imprinted information on the slidable insert member. The two-piece slide device is one whose physical configuration is of a form that can be manufactured from a suitable semi-rigid opaque, thin paper or plastic stock.

Abstract: A device for combining data comprises a frame and at least an upper and a lower plate which plates are freely displaceable in parallel planes in mutually perpendicular directions in the frame. The frame is provided with a first and a second window for positioning of each of the plates in relation to the frame in dependence on given initial data, and the lower plate is provided with data which can be displayed through associated windows in the upper plate in dependence on the position of the plates in relation to each other.

Abstract: The disclosure describes a shrinkage compensated measuring device comprising a first scale calibrated in units of length, e.g., inches or centimeters, and a second scale calibrated in units of percent shrinkage. Each point on the second scale corresponds to a unique point on the first scale and indicates the percent difference between a reference point on the first scale and the unique point on the first scale. The shrinkage device also comprises a first array of lines, each line of the first array corresponding to a unique percent shrinkage, and a second array of lines extending across the first array such that the distance between any two lines of the second array as measured along one of the lines of the first array is inversely proportional to one minus the percent shrinkage corresponding to that line of the first array divided by one hundred.

Abstract: A calculator of flat design with a surface chart showing marginal scales and diagonal inner ones. The top of the calculator serves as a cover attached marginally to a case underneath. Also, the top has a diagonal slot, and is surmounted by a flat pointer which has a similar slot, and can be slid and rotated to relate to numerical values in the scales. An axial post is installed to pass through and be movable to any desired point in the slots, with means disengaging the post by finger pressure for movement away from said point.

Abstract: A temperature control cost monitor and method uses temperature responsive means with a visible display calibrated in terms of percentage savings or increased costs above and below a standard temperature. The display can be a temperature sensitive liquid crystal array and overlay with transparent percentage indicia, a liquid height thermometer with associated percentages indicated on or adjacent the thermometer, or another temperature indicator calibrated in this way. The calibrations are based on the climate in which the monitor is used. The monitor can indicate savings and excess cost of both heating in winter and air conditioning in summer.

Abstract: A slide rule for solving time/speed/distance problems where distances are measured with a single or universal ruler applicable to all charts or maps regardless of scale. Result is achieved by printing alongside time entries on the slide rule a row of appropriately-spaced numbers constituting indicia of chart or map scale, and which has a range encompassing the largest and smallest scales of charts or maps which are likely to be encountered. When such numbers are properly positioned, it is necessary only to set chart scale opposite speed made good, after which running time will always appear opposite distance travelled, and vice versa. This device eliminates the need to use dividers and mileage or latitude scale, and thus obviates the intermediate steps which their use entails.

Abstract: An analog computer for solving and displaying an answer to a multivariable problem includes a bottom plate upon which a matrix of the solution set to the problem appears. Overlying the bottom plate is a series of aperture plates, corresponding in number to the number of variables. Each plate is provided with an aperture dimensioned to display the solution subset corresponding to the solution to the problem for a variable value as set by the positioning of the plate. When each plate is so positioned, the solution to the problem defined by the variable values set appears through all the apertures.

Abstract: A graphical logic computer is formed by apertured parameter slides that are moved back and forth in an envelope between an apertured cover member and a back panel. The cover member has an event network with paths that branch from and connect event windows formed by the apertures in the cover member. Event indicators are disposed on the back panel in position to be observed through the event windows provided none of the parameter slides obstructs its view. The parameter slides have logic windows, and the position of each parameter slide with a logic window or solid portion aligned with an event window corresponds to a logical input, the combination of two or more such imputs providing a logical output. For each combination of slide positions, a single path is observed through the event network to a logically determined result.

Abstract: A mid-tone calculator for determining density reproduction to maximize color reproduction in a lithograph tone process. The calculator includes a base having a longitudinal guideway therein, an original density scale thereon and a density compression scale thereon. A lower slide is reciprocally shiftable in the guideway. An upper transparent slide is reciprocally shiftable in the guideway and overlies the lower slide with the slides being shiftable in the guideway with respect to one another. One of the slides has a high density indicator and the other of the slides has a low density indicator thereon. One of the slides has a plurality of tone reference number curves and the other of the slides has a tone intersect line thereon. A transparent cursor is longitudinally shiftably mounted on the base, overlies the slides and is shiftable with respect thereto, and has a half tone placement indicator thereon.

Abstract: A device for determining the angularity of unbalance of several disks to be assembled into a rotor construction in which a plurality of relatively pivoted members having appropriate linear and angular scales thereon are positionable with respect to one another to indicate the necessary angularity of the unbalanced points of the disks with respect to the amount of unbalance in the several disks.

Abstract: An exhaustion degree measuring board for measuring the fatigue of photographic processing solutions including a base member having at least one reference density window formed therein along with graduated scales corresponding to a control strip. The reference density windows have upper and lower portions with the upper portion being transparent for viewing the relevant part of the control strip and the lower part of at least one of the windows having a varying dot density. A center line with a reference mark is formed on the base for alignment with the control strip.

Abstract: The break-even point of any enterprise is quickly calculated on a Cartesian coordinate system for plotting receipts versus costs by entering in the coordinate system the fixed costs, and pivoting a cursor to extend from the origin of the coordinate on receipts at the fixed costs to the point of fixed cost plus variable costs and receipts anticipated from a selected volume of sales. The break-even point is then read from the coordinate system where the cursor intersects a line on the coordinate system having a slope of unity from the origin of receipts and costs.

Abstract: A diagram analyzing device is provided which is particularly useful in simultaneous interpretation of a plurality curves representing economic data. The curves are drawn to a common scale and provided on transparent sheets so that they can be superimposed one on the other, two or more at a time. A transparent calculating ruler used in association with the curves enables a user to analyze the data presented in the curves, i.e., to make calculations using the data, and to determine the inter-relationships between different sets of data, as well to discern trends and rates of growth. A table of events used in conjunction with the curves enables the data to be interpreted in light of events taking place in the economic world which are thought to influence this data. The calculating ruler contains two different logarithmic scales along the longitudinal edges thereof, with the number "1" providing a baseline for each scale, together with a plurality of time scales across the width thereof.

Abstract: There is disclosed herein a slide calculator for determination of factors related to metabolic requirements and used in determining parenteral feeding dosages. By use of the calculator, factors, such as basal energy expenditure, body surface area, ideal body weight, and carbohydrate dosage can be determined.The calculator includes a front panel and a back panel, each having several window-like apertures. A slide member is positioned and movable between the front and back panels. Indicia is provided on the front and back panels and is generally arranged adjacent the window-like apertures. Indicia is also provided on the slide member and is arranged for exposure at predetermined windows.In connection with each of the factors to be determined, the indicia on the slide and the indicia adjacent the appropriate window are arranged in a predetermined manner and relationship so as to permit the desired factor to be determined or calculated.

Abstract: A teaching aid simplifies the understanding and practicing of the inversions of the major triads of the diatonic scale by utilizing a series of insert cards which slide into a simulated keyboard and read up vertically duplicate sets of the scale tones of the triad beginning with the underlying keyboard tone. In contrast with the usual method of inversion indication, wherein sequential indicia point out inversions on the keyboard itself, or on a horizontal scale, by reading up vertically rather than horizontally the student is able to easily see the inversion arrangement without confusing it with the keys that he is playing.

Abstract: A punching stylus for tabulating devices wherein the stylus is inserted through a selected hole in a rigid top plate of the device and through an aligned tabulating card. The stylus comprises a slender, rigid rod having a hardened tip and mounted within a non-rigid handle member in such a way that the handle is flexible relative to the rod. Thus, in use, the rod of the stylus will not break if the stylus is moved laterally or bent over when inserted in the plate hole of a tabulating device.

Abstract: A biorhythmic cycle indicator having three, sine-wave-contoured plates that slidingly overlay a backing plate that has a calendar strip. The plate contours and the calendar register to provide a graphic representation of a person's biorhythmic cycle.The contours of the sliding plates are illuminated to accent the component cycles.

Abstract: A calculator is described which greatly simplifies the calculation of the required feeder head parameters, e.g. size, amount of antipiping compound, in casting metals. Only the size of the casting section being fed and the normalized inscribed circle relating thereto need to be measured.

Abstract: There is disclosed a marine navigational calculator device of the slide rule type whereby tidal depths over bottom structures may be determined as a function of the time of the tide or time of calendar day and whereby the entire time span available to a mariner to successfully negotiate such charted bottom structures for a given tidal flow is visually presented.

Abstract: A calculator for sunlight effect having a base portion which holds two orthogonal plate slides of which one is transparent and provided with a double curve system enabling plotting of any day/hour combination, the curve system, being characteristic for a specific latitude, and this slide being positionable according to a relevant facade direction. On the base portion underneath the slide is printed a curve system indicative of the heating effect of the sun for any point in the double curve system. The other slide has a pointer curve which, when brought to register with any point of the double curve system, causes the other slide to assume a position indicative of the inclination of the shadow by the particular combination of parameters, and the other slide forms together with the base portion and further slides a slide rule calculator enabling a direct determination of the vertical shadow on a window as caused by an overhanging sunshade structure.

Abstract: Apparatus for simultaneously indicating the bio-rhythm curves which illustrate the emotional, mental, and physical cycles of a person comprising three slide elements, two of which are overlayed on the third and are transparent to simultaneously display all three curves in relationship to each other. The slides are mounted on a board having a transparent window with reference marks formed across in relation to a calendar scale indicating the days of the month and year. A reference scale is positioned near the start of the year for indicating the set point of the sliding scales and starting indicators are provided for calculating the starting day of each person's cycle in reference to his birthdate. A preferred embodiment has two scales such that the bio-rhythmic cycles of two persons may be compared to determine when they are compatible and incompatible.

Abstract: A slide rule guide enables immediate selection of the requisite individual different diameter, different length sections or segments of a multiple segment tapered fly fishing leader. An envelope forming side panels slidably receives a planar slide. A pair of elongated windows in line and at right angles to the direction of slide movement simultaneously display common columnar data on the face of the slide; the overall length of the leader, the tippet size, and in order from the butt end of the leader to the tippet end, the length and diameter of each leader segment or section.

Abstract: A biorhythm calculator comprising at least two members, a rhythm scale member and a key scale member. The rhythm scale member has a major surface having a biorhythm cycle thereon, the cycle being identified by numbers of the days of the cycle, with the numbers being divided into at least three groups corresponding to high, low and critical periods of the cycle. The key scale member has a major surface parallel to the major surface of the rhythm scale member with such surface having figures indicating biorhythm positional relationship for the biorhythm cycle. The rhythm scale member and key scale member are moveable relative to one another so that the key scale figures can be compared to the periods of the cycle to determine which of these figures correspond to the specific periods of the cycle. Preferably, there are three rhythm scale members, each corresponding to a respective biorhythm cycle, and three key scale members, one for each respective rhythm scale member.

Abstract: A biorhythm scale adapted to secure its operation and capable of directly observing the periodic day and the half-periodic day a physical, sensitive and intellectual rhythm for the individual or individuals in an accurate manner. The biorhythm calculator includes a guide interiorly of which a resilient non-slip element is firmly mounted not only to provide no slippage between vernier scales but also to eliminate an error in reading, and is comprised of a physical rhythm (P) scale, a sensitive rhythm (S) scale, an intellectual rhythm (I) scale, a day scale, and a month scale each of which is provided with racks at least one side thereof. Each of the vernier scales is slid over a fixed date scale indicative of the number of days in a month while in engagement of the racks with the non-slip element to thereby read out the biorhythm in the period as desired.

Abstract: A construction comprising a sheet of two contiguous detachable leaf members is folded and separated to form slide and sleeve components of the calculator. Fold lines in the sheet are formed parallel to a separation or tear line that divides one leaf member from the other leaf member. In assembling the slide calculator the leaf members can be separated before or after the folding operation. A marginal portion provided on one of the leaf members enables the sheet to be secured by adhesive or other suitable form of attachment to a newspaper or magazine, a package container, or a package label.In various embodiments of the invention an information readout is provided on reverse sides of the calculator including one embodiment wherein the printed format of the slide and sleeve components is applied to one surface only of the respective leaf members.

Abstract: The 23 day physical biorhythmic cycle, 28 day sensitive biorhythmic cycle, and 33 day intellectual biorhythmic cycle are commonly plotted in phase relationship with each other from a point where they commonly start on the neutral axis representing birth through 100 years in 4 year groupings, with adjacent 4 year groupings being shifted 1 day corresponding to the presence of a leap year in each 4 year grouping. The chart containing the plots is provided with lines indicating day intervals and indicia representing year intervals consecutively from the beginning day of birth. A curve that is a composite of the three biorhythmic curves is vertically aligned and spaced adjacently throughout the chart.

Abstract: A calculator and method for simply and quickly selecting appropriate spot type fire detectors and determining their preferred locations in a chosen space division in accordance with standard spacing ratings. The slide rule-like calculator includes a body member, a slide member slidably positioned within said body member, and in one embodiment a cursor slidably encompassing both the body member and slide member. The body member comprises at least one logarithmic scale representing one dimension of the space division and the slide member comprises at least one logarithmic scale representing the second dimension of the space division. Additionally, at least one fire detector scale, established with reference to standard space detector ratings, is included either on said body or slide member and an index or zero line is included on the other member.

Abstract: A method and computational aid for determining the optimum cycle lengths for use in a vehicular traffic control system wherein inbound and outbound traffic flow are equally favored. The method employs the technique of determining optimum cycle lengths by utilizing harmonic relationships found to exist between the time separations of the controlled arterial intersections and other key traffic control parameters. The method may be practiced by means of a highly simplified graphical computational aid which provides a clear visual indication of candidate optimum cycle lengths for a particular group of intersections which requires only prior knowledge of intersection relative locations. The unique format of the graphical computational aid provides, in addition to the candidate optimum cycle length information, a visual indication of the quality of the candidate solution obtained for each of the controlled intersections of the group.

Abstract: A currency converter formed of a fixed frame having a hollowed-out central area and two flat parallel surfaces wherein one surface defines two large generally parallel windows having a section of one reference line of indicia extending lengthwise across the top and bottom of each window wherein each section designates a range of currency of a reference country in the form of a logarithmic scale of currency values, a first and second small window positioned between the two large windows for displaying in one of the small windows an exchange rate comprising the currency value of the reference country for each unit of currency of a selected country and in the other small window an exchange rate comprising the units of currency of a selected country for each unit of currency of the reference country and with the other surface designing a plurality of apertures formed into at least two columns of spaced aligned apertures extending in a direction substantially perpendicular to the large windows, and a removeable sl

Abstract: A calculator for facilitating the layout of parking lot stalls of desired length and width at a desired angle. The calculator includes a first member having orthogonal length and width scales as well as angle indicators relating to desired stall angle. A second member is pivotable on the first, and includes indicia related to desired stall length and width. The second member is positioned for pivoting on the first, is aligned according to the desired stall data to provide a direct readout of the orthogonal length and width dimensions necessary to lay out the stalls.

Abstract: A scheduling tool for establishing estimated duration of a contractual obligation involving multiple phases and associated functions thereof is utilized with a normalized scale and various overlays determined in accordance with statistical information relative to criteria useful in determining the duration of the obligation. A manpower allocation device may be used alone or in conjunction with the scheduling tool to estimate the manpower necessary during various phases of different contractual obligations.

Abstract: A computer including a base and a member superposed over the base and movable with respect to it. The base may be a card and the member may be a continuous flexible band surrounding the card. The band is slidable along the length of the card and also movable in the direction of its continuity. A series of dates, each including a month and day, is carried by one of the base and member, and a series of numbers is carried by the other. The dates are arranged in day-by-day sequence, and the numbers are in sequence with each successive number being larger than the one immediately previous to it by the amount of one day's fine. When the zero position of the sequence of numbers is moved opposite to the current date, the number adjacent the date on which a book was due will be the amount of the late fine.

Abstract: A manually operable computer for determining exposure settings of an X-ray machine comprising two juxtaposed scale members. Means are provided for supporting said scale members for movement relative to each other, a first scale on one of said members denoting thicknesses of a subject to be radiographed and a second scale thereon in predetermined fixed relation to the first scale denoting certain exposure settings of an X-ray machine. A third scale is provided on the other scale member denoting certain other exposure settings, said second and third scales together forming a single chart of exposure settings in the form of voltage, current and time. The first scale includes a plurality of non-linearly spaced dimensional indicia indicative of said thicknesses.

Abstract: A menu-planner, comprising a jacket element bounding an interior space and having an exposed outer surface provided with a first window and with two elongated substantially parallel second windows.First indicia are provided on the surfaces, including a list of consecutively numbered recipes and two pair of ingredient lists, the lists of each of the pairs flanking a respective one of the second windows along opposite lateral sides thereof with the ingredients of each list being arranged seriatim along the length of the respective window.Movable members move in the space relative to the windows to a plurality of positions in each of which a portion of the movable members is exposed outside the space.

Abstract: A hand calculator is described for converting monetary amounts from one currency to another comprising a slide with a plurality of parallelly disposed logarithmic scales thereon, a sleeve engaged with the slide and having an index means, and a cursor slidably engaged about a portion of the sleeve and having an index means thereon. For facilitating the calculation of gratuities as well as for converting currencies, the logarithmic scales are laterally oriented such that adjacent scales are displaced by a factor of 15 percent (or 0.15). In an alternative embodiment, the cursor has means for receiving a movable marker which may be used to mark a scale to which the user wishes to later refer.

Abstract: For the scheduling of activities, particularly construction activities by the Critical Path Method, an apparatus is provided with a mechanical simulation of the network associated with the method, and is adapted to support a network chart of activities and events. It has a progress bar for monitoring such activities and events, which is power driven at a constant rate for indicating the scheduled progress of the entire project at any given time, whereby the scheduler can determine at a glance at the board what adjustments, if any, need be made in the timing and progress of the various activities of the project.

Abstract: A calculator to aid in selecting bingo cards to increase the odds of winning. A fixed frame member has a slide member freely movable relative to it. The front face of the frame has a transverse slot and an indicator. Adjacent the slot, along its length, is an indicia scale made up of the letters BINGO. The slide member has a pluraity of transverse scales, each corresponding to a particular form of bingo game. The scales each have a corresponding indicia, identifying the particular game, which is spaced a distance substantially equal to the distance from the slot to the indicator plus the width of a scale. When an indicia is aligned with the indicator, its corresponding scale is visible in the slot and aligns with the letters BINGO. The numbers of the scale tell which numerals should be chosen under each letter to increase the chances of winning.

Abstract: A calculating device for use in conjunction with past performance data conventionally compiled and published on each active thoroughbred horse performing on U.S. racetracks, has three cooperating transparent slides each indexed visibly in terms of racehorse racing time and in speed ratings. The first, or innermost, slide is compound, with time and rating scales and time and distance columns on its obverse face, and assigned weight, age, post position, calendar, track condition and class data expressed in time difference increments on its reverse face. A second slide surrounds the first, and carries a speed rating index extending along the direction of slide motion. An outer slide movable relative to both others has transverse index lines based on seconds of time as expressed on the innermost slide and a table of conventional time performances for various segments of various races.

Abstract: A stock trend indicator and method of using is disclosed. The manipulable instrument is used with a standard stock chart to forecast an evaluation of future stock behavior.