Abstract: A linear proportioner including a logarithmic mechanism to be used for transferring linear dimensions from an existing drawing, picture or actual scene to a new drawing or artist medium. An elongated assembly provides two indicators (one fixed and one variable) as reference pointers, two indicators (one fixed and one variable) for object pointers and an adjustment knob which, when rotated, moves the variable indicators synchronously and proportionally. By depressing the knob when transferring the first object dimension, the proportion ratio (transparent to the operator) is automatically set for subsequent dimension transfers.

Abstract: An instrument for measuring rigger-spread of a boat has an elongate casing 1 for support athwartships of the boat with a shoulder 2 of the casing 1 abutting the outside of the gunwale 4 opposite the rigger 5 and a slidingly-adjustable shoulder 6 abutting the opposite gunwale 9. A measuring tape 10 is extendable longitudinally from the casing 1 to the oarlock 14 of the rigger 5 to give a reading of spread, the extendable length being limited in dependence upon the spacing between the shoulders 2,6 of the casing 1 such that this length is increased or decreased by half the amount of any increase or decrease, respectively, of that spacing. Limitation of the extendable length involves a mechanism in which the two ends 18,19 of a flexible strip 15 or wire are secured respectively to the sliding shoulder 6 and the casing 1 so as to define a loop that is caught by a hook 16 of the tape 10 in limiting tape-extension.

Abstract: The present invention relates to a process and method for printing, utilizing a computer and computer printer, a scale instrument and conversion tool to be used in preparing and interpreting scaled drawings, maps, aerial photographs, graphs and similar documents. The instrument can be printed on paper, plastic film, or any flexible media capable of being processed by a computer printer. The invention includes a sub-process to not only print a scale denominated in the various scales typically used in preparing scaled drawings, etc., but also to print a scale denominated in any other scale to be used in interpreting a drawing, etc., which is not longer presented in the original scale due to reproduction, shrinkage, enlargement, or reduction.

Abstract: A dividing rule that allows the user to divide a workpiece into equal divisions with heightened accuracy and ease. The dividing rule is a plate with pins attached at the corners of the plate which help position the plate on the workpiece. Holes marked with appropriate divisions are located on the plate so that the user, to partition the workpiece into equal divisions, simply marks the workpiece using the holes that coincide with the desired number of divisions.

Abstract: A tool for selectively marking a surface in specific desired increments for use in a variety of mechanical arts. The tool has a ruled face and indicates selected increments by illuminating light emitting devices corresponding to the locations to be marked.

Abstract: The present invention relates to a measuring device, conversion device or ruler having specifically or universally selectable scales which can be used to measure distances with a desired linear or logarithmic scale, to draw distances to a desired scale, or to divide distances into a desired number of equal parts. The ruler comprises a transparent support plate having special graduations which are either composed of parallel, equally spaced lines or parallel logarithmically spaced straight lines, or composed of inclined angularly spaced lines. In the instance where the lines are angularly spaced, as in a ray-like structure, it may be composed of rays of inclined, straight or curved lines, said inclined lines or their extensions having a common intersection and the spacings between any two neighboring lines being equidistant, regularly increasing, or logarithmic-related distances in at least one direction.

Abstract: The present invention relates to the field of typography. In this field, it is desirable to quickly and efficiently determine certain key ratios between cap height and type size of a letter in a particular typeface, in order to create various aesthetic results. In situations where variations in typeface height normally cause problems, such as: matching specimens of typeface; filling vertical spaces; and dropping caps, among others, the task of determining this ratio is complicated by the fact that typefaces with the same point size may actually differ in height, and typefaces of the same name may vary in size according to the typesetting system which produces them. In such situations, the instant invention is particularly useful.

Abstract: Disclosed herein is a chart and a preferred method of using it.The chart consists of predetermined measurements printed, preferrably on a durable paper.The chart is designed to give double fullness to drapes. This is accomplished by the pleated and the unpleated areas being the same width.Vertical numbers 1-27 get progessively larger. They determine, by moving horizontally down the chart, the location of each pleat and unpleated area.Horizontal lines start out progressively larger and they then continue to be drawn the same width down the remainder of the chart, approximately 13 feet 6 inches.These lines determine how wide the pleated and unpleated areas are to be.