Abstract: A gauge for verifying that an airfield's runway and taxiway markings are a specific size. It is a complete reference tool for assessing markings manually by a technician; that is a tool to help reduce the subjectivity of the assessment by the technician. The gauge is flexible and can be rolled or folded for transport. In order to make the gauge easier to use, the measurements are made using very specifically placed and sized slots that conform to ideal airfield markings. Graduation markings at the end of the slots help the technician determine the size of marking discrepancies.

Abstract: A method/shirt cutting jig for converting a textile into yarn comprises mounting a tubular body of a textile on the jig's base, securing a first folded edge of the tubular body using a clamping bar and securing the second folded edge of the tubular body using a clamping panel. The clamping panel includes teeth that allow a user of the jig to cut the tubular body into strips of material fully past the second folded edge. A movable cutting fence enables the user to cut the tubular body into multiple strips of material, but where each cut does not extend fully past the tubular body's first folded edge. The tubular body with the cuts is removed from the jig and then manually cut in a diagonal pattern along its first folded edge to produce a single strip of material that is then easily converted into reusable yarn.

Abstract: A guide for cutting paving slabs comprises: a guide member (1) for guiding a cutting tool; a clamping means (5, 6); and a locator (3). The clamping means comprises a spindle (5) which passes through an opening in the guide member and connects to the locator. The clamping means is adjustable to adjust the position of the spindle relative to the guide member thereby to adjust the distance between the locator and the guide member.

Abstract: An apparatus for securing and drawing upon a piece of paper, includes a board having a drawing surface sized to receive the paper. The drawing surface is bounded along its perimeter by a border region. An array of border pieces is fastened securely to the border region, each border piece being aligned relative to the others to establish a precisely sized drawing surface area to accommodate the paper. Each border piece has a length shorter than that of the corresponding edge of the drawing surface.

Abstract: A measurement apparatus for measuring levels and plumb of items with offset dimensions comprises a base, a cross member, and a slide bracket. The cross member may have a shaft and a slide. The shaft may be rotatable around the base. The slide may move along on the shaft. The slide bracket may be connected to the base and the shaft. The cross member and the slide bracket may be slidable inside the slot of the base.

Abstract: A wound measuring device and system measures the length, width and depth of a wound. The device and system features first and second ruler members connected and secured by a connecting member which allows the ruler members to move to measure the length and width of a wound. The connecting member affords perpendicular movement of the ruler members providing accurate and consistent measurement of wounds irregular in shape and size. An end of the first or second member is designed to be inserted in the wound to measure the depth and undermining of the wound. Use of the device provides little to no discomfort to the patient.

Abstract: A straight edge clamping device includes front and rear sections and first and second connection locks. The connection lock is configured to be fit into the connecting ends of the elongated hollow portions of the front and rear sections. The first and second connection locks fit into the connecting ends of the first and second elongated hollow portions of the front and rear sections so as to connect and lock the front section with the rear section securely. Each of the first and second connection locks comprises: an outer surface fitting substantially tightly to at least a part of inner surface of the elongated hollow portion and an inner groove recessed inward from the outer surface, so as to provide rigidity against bending, shearing, or straining force on the straight edge clamping device.

Abstract: A straight edge clamping device includes front and rear sections and first and second connection locks. The connection lock is configured to be fit into the connecting ends of the elongated hollow portions of the front and rear sections. The first and second connection locks fit into the connecting ends of the first and second elongated hollow portions of the front and rear sections so as to connect and lock the front section with the rear section securely. Each of the first and second connection locks comprises: an outer surface fitting substantially tightly to at least a part of inner surface of the elongated hollow portion and an inner groove recessed inward from the outer surface, so as to provide rigidity against bending, shearing, or straining force on the straight edge clamping device.

Abstract: A straight edge clamping device having an elongated hollow base and a clamping device for holding a workpiece on the base is provided. The base having a constant cross-section and comprises: a flat top portion; a flat bottom portion; and frictional bands disposed along the flat bottom portion of the base in a direction of length of the base. The frictional bands increase a friction against the workpiece so as to keep the straight edge clamping device from skidding on the workpiece. The straight edge clamping device may further comprise installing grooves for installing the plurality of frictional bands, and the installing grooves may be disposed on the flat bottom portion in a direction of length of the base. Each of the frictional bands may have a cross-sectional shape substantially same as a corresponding installing groove.

Abstract: An extrusion cross-section for a straight edge clamping device including (a) an elongated hollow base having a constant cross-section; (b) a first stop fixed at one end of the base; (c) a second stop movably provided along the base; and (d) a clamp for holding the workpieces together, includes a) a flat base portion having top and bottom surfaces, and two edges; b) two L-cross-sectioned portions having horizontal and vertical parts, facing each other, integrated with the flat base on the top surface of the flat base forming a top groove; c) two hollow portions, facing each other, integrated with the flat base on the bottom surface of the flat base forming a bottom groove; and d) two flanges having a horizontal part, vertical parts, facing each other, integrally connected to the corresponding hollow portion, wherein the cross-section has a right-left symmetry with a vertical center line as symmetry axis.

Abstract: A craft board assembly is described. Embodiments of the craft board comprise a base having a self healing mat coupled thereto. A square frame rule is provided that defines an interior work area having predetermined dimensions. A piece of paper, such as a scrapbook page, that is the same size as work area dimensions can be received in the work area and is held securely in place by the interior edges of the square frame rule's sides thereby preventing lateral movement of the paper while it is being worked upon. A sliding ruler is also provided that spans two sides of the frame rule permitting a user to quickly and easily measure and layout a scrapbook page. Preferred embodiments further include a magnetic sheet underneath the self healing mat in conjunction with a steel sliding ruler to help hold the ruler securely in place at a desired position or location.

Abstract: A measuring and layout device having a stationary member having a flat surface adapted to be marked on and an angle and distance device rotatably coupled to the stationary member. The angle and distance device includes a longitudinally and laterally rigid extendable tape that can be extended from a central point and that has an edge that facilitates reliably marking on the stationary member to form an accurate template as the angle and distance device is rotated and the tape is extended and retracted to critical features of an area.

Abstract: Auxiliary drafting instrument combination applicable to digital board, including a base seat formed with at least one pivot hole; a compass having a pivot seat for pivotally connecting two legs, a bottom end of one of the legs being snugly pivotally fitted in the pivot hole of the base seat, the other leg being connected with an electronic pen; and a subsidiary ruler one end of which is pivotally connectable on the base seat. By means of the combination of the base seat and the compass, a circle can be input on the digital board or by means of the combination of the base seat and the subsidiary ruler, an oblique line can be input on the digital board.

Abstract: A device for calculating where a cue ball must cause an object billiard ball to strike the bumper of a billiards table in order to drive the object ball into a selected pocket of the billiards table of the type having two opposed end rails and two opposed side rails. The device includes a plotting board and a guide. The plotting board comprises a scaled playing table portion and at least one scaled mirror table portion having pocket positions formed thereon, wherein the mirror table adjoins at least one of the opposed end rails or opposed side rails and is a mirror image of the playing table portion. The plotter comprises a guide and an object ball arm, the object ball arm having a pocket guide end and an object end.

Abstract: The invention relates to a device for measuring across several axes of an object, whereby the object to be measured can be fixed to a measuring table. According to the invention, base strips are provided which are configured laterally as a half-dovetail profile and can be fixed on the measuring plane. Attachment strips, having a groove, are provided to complement the base strips and have a toothed profile on one side. Fastening screws are associated to the groove. The base strips and attachment strips are sized and arranged with respect to the measuring table in such a way that the plane of the measuring table acts as a reference plane for the underside of the attachment strips. A clamping piece, which fixes the object, is also provided. The invention is suitable for both contactless optical measuring and tactile measuring. One of the advantages of the invention is that objects to be measured can be securely and rapidly fixed to the measuring table, even if the latter is mobile.

Abstract: An adjustable angle cutting jig device and associated method of using the device for use with a table saw having a circular blade, a rip fence and a miter groove is disclosed. The device comprising the interconnected elements of a rip fence guide, a first shank, a second shank, a cross member, a first rotating arm, a first threaded bolt, a second rotating arm, a second threaded bolt, cross brace, a first angle guide, a first wingnut, a second angle guide, a second wingnut, and at least one clamp. The method of using comprises the steps of adjoining, affixing, aligning, angling, cutting, fastening, grabbing, identifying, inserting, loosening, obtaining, placing, pushing, raising, sliding, tightening, turning, and untightening.

Abstract: An automatic packaging apparatus has an arraying and supplying station, a sorting station and a packaging station. The arraying and supplying station forcibly arrays and supplies encased products to orient their caps in one direction. The sorting station selectively sorts the arrayed encased products to a first feed path for feeding the encased products to package the encased products in a abreast-arrayed attitude and a second feed path for feeding the encased products to package the encased products in a tandem-arrayed attitude. The packaging station automatically packages the encased products by a shrink sheet in the abreast-arrayed attitude or the tandem-arrayed attitude.

Abstract: A monitor device for marking a reference location on a computer screen. The reference location can be, for example, a data point on the screen that a user needs to note. This would be advantageous, for example, when the user is checking a spreadsheet of data. Often when the user refers back and forth between a computer screen and a hard copy, the user loses track of the user's place on the screen. The monitor guide can be used to keep track of where the user is on the screen. The monitor guide features two rods that move with respect to the screen and intersect at a point used to mark the reference point.

Abstract: An apparatus and method to measure, establish and implement a desired range of travel allowed a reclining seat back portion of an airline seating accommodation. The invention, utilizing one or more base unit positioning templates is abutted to one or more seating accommodation foot structures to provide for accurate measurement positioning. A measurement bar restriction component is adjustably positioned to indicate a desired maximum reline position for said seat back portion, and a pivotally attached measurement bar is raised perpendicularly therefrom to a vertical orientation. Said raised measurement bar's uppermost end providing a reference point against which said seat back portion's initial contact indicates a maximum reclined position.

Abstract: An expandable mechanical stop is provided for positioning a workpiece during woodworking or other operations. The mechanical stop includes a positioning body which is adjustably attached to a track, the track having a vertical face that abuts an edge of the workpiece during operation. A stop arm is connected to the positioning body and includes a rear face that is substantially adjacent to the vertical face of the track. Anti-biasing means are provided to prevent the workpiece from dislodging the stop arm by sliding between the stop arm and the track. In one configuration, tabs are provided on the rear face and are received by grooves on the vertical face to serve as the anti-biasing means. In another configuration, grooves are provided on the rear face and receive tabs disposed on the vertical face.

Abstract: A drawing board assembly includes a board having two tracks and two slide bases are movably received in the tracks. A ruler is connected between the two slide bases and a frame is connected to the ruler. The frame has a groove in which a slide member is movably received. A protractor is connected to the slide member and a guide ruler is pivotally connected to the protractor. A bolt extends through the guide ruler and the protractor. A positioning knob is connected to the bolt so that when the bolt is loosened, the guide ruler is pivoted.

Abstract: The invention relates to a deviation calculation rule of the circular type for the monitoring of a two-dimensional deviated well path. The rule consists of a support plate (10) on which is marked a circular dial with two semi-circular scales (G1, G2) graduated in degrees for locating the inclination angle at the entry point and the exit point of a section of path, at least two rotary disks (12, 121) each marked with a plurality of concentric circles (C1 through Cn; C1 through C′n that each correspond to an inclination gradient for a specific drilled length (Gbu), at least one bi-sectoral disk (14) with, on its edges, scales (E1 through E4) used to locate the various Gbu circles on the disk being used (12), a first sliding system (16h) allowing for a direct reading of the horizontal deflections and a second sliding system (16v) allowing for a direct reading of the vertical depth deviations.

Abstract: A base is provided with right angularly disposed scales marked in degrees starting from zero degrees at an intersection of the scales. Indicators are elongate and pointed at their ends and each of different length. Placement of an indicator on the base in a diagonal manner with its ends on separate scales will indicate miter and bevel angles for a compound miter cut of each container panel. Each indicator bears a number to indicate the number of panels in a container having its panels cut using the compound angles identified by the indicator.

Abstract: A cartoon drawing apparatus for 16 F size drawing paper, includes an auxiliary positioning plate which can reconfigure the apparatus for 12 F size drawing paper. The cartoon drawing apparatus for 16 F size drawing papers includes a round drawing disk, a frosted glass, an upper and lower positioning rulers. The frosted glass is embedded in the drawing round disk for an artist to draw thereon. The upper and the lower positioning rulers have positioning protuberances for fixing 16 F drawing papers. The auxiliary positioning plate includes some insertion holes on the upper edge of a plane body. The plane body includes some protuberances on the lower edge of the plane body, so that when the insertion holes are slipped over the positioning protuberances on the upper positioning ruler, the distance between the protuberances on the lower edge of the plane body and their corresponding positioning protuberances on the lower positioning ruler exactly matches the fitting of 12 F drawing papers on the apparatus.

Abstract: A router table sled for use with a router table and a router table fence includes an arm assembly that rides along the fence and a strut assembly that supports the workpiece. The arm assembly includes a slider that slides along an upper edge of the fence and an arm attached to an upper edge of the slide. The arm is usually in a position perpendicular to the slide. The arm is also coupled to a strut assembly that includes a main strut, and two additional struts located beneath the main strut. Each strut includes a longitudinally-centered T-shaped slot formed into top, front, and rear faces. The front faces of each strut lie substantially within the same plane. The two lower struts have opposing edges that are spaced a predetermined distance from each other. When a workpiece is clamped to the faces of the struts, an edge may be placed against the fence. The workpiece may then be moved across the router bit to produce a square cut.

Abstract: A drawing board and clipscale combination in which a paper holder and a ruler are united in a single body. The board has a groove and a portion overhanging it along each of the four sides. The clipscale includes a ruler, one side of which is protruded in the middle with a screw hole for receiving a screw. The other side of the ruler is a base side, and on the back is a linear hook-shaped stopper. The stopper is received in the groove of the board, and paper is positioned while the screw is loose. As the screw is threaded deeper, the one side of the clipscale is raised off the board, with the hook of the stopper engaged complementarily with the portion overhanging the groove of the board, so as to serve as a fulcrum. The base side is forced against the board with paper therebetween, so that the paper and the clipscale are fixed on the board in one action.

Abstract: A pad device includes a hole formed in the edge portion for engaging with a screw. A board has an opening engaged with the screw and has two legs and a gap formed between the legs. The legs each has a recess formed in the bottom portion. A knob is threaded to the screw for securing the board to the pad. A rule has a shaft engaged in the recesses of the legs such that the rule may rotate relative to the board and such that the rule may be disengaged from the pad when the board is secured to the pad. The rule includes one or two edges each having a metal strip for protecting the rule from being cut.

Abstract: According to the present invention there is provided a protractor including a main body surrounding a circular aperture and having a scale of angular measurements thereon, and a rotary cursor mounted on the main body for rotary movement about the center of the circle of the circular aperture. The rotary cursor includes a part-circular center portion engaged in the circular aperture and rotatable within the aperture, and a radial arm portion extending radially outwardly from the center portion to the scale. The center portion of the rotary cursor is generally in the shape of a sector of a circular disc bounded by the reference side edge and the further side edge, and extends through about three quarters of a circle. The arm portion and the center portion of the cursor are formed as an integral unit.

Abstract: A drafting device includes a pair of magnetic boards securely mounted to upper and lower surfaces of a base frame respectively, a ruler movably engaged on the magnetic board, a pair of cavities defined in each of the four corners of the lower surface of the base frame, and a protrusion being formed between the pair of cavities. A guiding member is securely mounted to each of the four corners of the base frame and includes a locking block having a first wall member and a second wall member mounted on the upper and lower surfaces of the base frame respectively, a slot being defined in the second wall member through which the protrusion is received, a recess defined in an underside of the locking block between the first and second wall members and having a width equal to the distance between a bottom face of the cavity and the upper surface of the base frame. A guiding line loops around each of the guiding members and passes through two ends of the ruler.

Abstract: A tool for assisting in producing a straight edge on a piece of rough cut raw material, such as lumber or masonite. The tool is held in place on top of the piece by gripping means which grip the piece along two opposite side edges. The tool's straight edge, unobstructed by clamps or other protrusions, is then used as a guide to bank against the saw fence of a table saw, radial arm saw, or circular saw, producing a straight edge on the piece. Using the tool, one can take the flat bow out of a piece and also remove the rough mill edge. The tool can also be used with a hand circular saw, jig saw, or router by running the saw directly along the tool's unobstructed straight edge.

Abstract: An angle trisecting device with a base section having two angle indicating scales and an elongated member with a straight edge portion. The elongated member is pivotally mounted on the base section. A given angle on one angle indicating scale coinciding with the straight edge portion corresponds to a trisected angle on the other angle indicating scale coinciding with the straight edge portion. Pivot pins extend from the elongated member and are removably captured in respective base slots to ensure reliable operation. In another embodiment a guide wall extends from the base to ensure reliable operation. An optional link arm is pivotally mounted to the base section and with one end pivotally mounted to the elongated member.

Abstract: A pan and channelled drawing board combination comprising a transparent drawing surface channelled on two or more sides and pivotally attached at one corner to the upper surface of the lip of the pan and having a surface support attached to the bottom of the pan.

Abstract: An apparatus and method for use with a router guide plate adapted to be secured to the underside of the router, the router guide plate including guide pins, the apparatus including a base platform having top and bottom surfaces, and a guide pin receiving channel mounted on the top surface of the base platform, the channel adapted to receive and guide the guide pins on the router guide plates. Stop blocks are mounted on the base platform adjacent the channel for preventing advance of the router guide plate beyond a predetermined point and an alignment bar is adjustably and removably mounted on the bottom surface of the base platform, the alignment bar being operative to align a piece of wood to be routed relative to the guide pin receiving channel.The method includes steps of providing the above described apparatus and positioning the base platform adjacent the work face of a work piece such that the bottom surface of the base platform is at least partially overlying the outer surface of the work place.

Abstract: A drafting board includes a base, a shoulder formed in the perimeter of the upper surface of the base, a magnetic board engaged in the shoulder of the base, two holes formed in the bottom surface of the base, and a rod engaged in each of the holes of the base for elevating the upper edge of the base. The upper edge is located higher than the lower edge and the base is supported by the rods in a sloped fashion.

Abstract: A woodworking machinery jig and fixture system includes a track which is attached to a separate plywood fence, auxiliary table or other workpiece support of woodworking machinery such as a table saw, a band saw, radial arm saw, miter saw, a drill press or a router table. A flip stop and an optional microadjuster mount to a T-shaped slot in the track. An angle bracket is also provided for making right angle connections of track to track or track to support. A location stop records the position of a track relative to a flip stop or other jig or fixture and a circle jig can be used in the track to cut circles. A miter guide, optionally having a fixed head, has a longitudinally adjustable auxiliary fence and a miter bar with an anti-play feature in which a bearing is adjusted to slide on the side of a table top slot in which the bar is received. A guideway for the miter guide has a concave bottom wall which adjustably flexes to tighten the guideway around a miter guide bar.

Abstract: A board member including a plurality of linear and arcuate tracks are provided, with each of the tracks including respective openings directed therethrough extending from the board top through bottom walls to permit the execution of lettering by the board to accommodate each letter of the alphabet.

Abstract: A mitering guide device for a circular saw has a protractor including a curved edge with angle markings thereon. An arm is pivotally attached to the protractor and performs in conjunction with a saw guide for defining an angle to be cut. A hinge is attached to the protractor and saw guide through multiple hinge joints for permitting various thicknesses of boards to be cut.

Abstract: A guide bar for use in providing a straight edge to make a metal cut, usually on steel with an oxyacetylene torch, which can be used both on flat stock and also across the open section or center web between the top and bottom plates of an I-beam.

Abstract: A portable, lighted drafting station comprises a shallow tray the size of a briefcase having a cover made from a sheet of translucent material sliding into slots in the rim of the tray. A T-square and two triangles are held by a set of brackets against the undersurface of the cover. A fluorescent light inside the tray resting over a sheet of reflective material leaves enough storage to accommodate pencils and other drafting implements. A simple, spring-biased bolt locks the cover into the tray by engaging a notch into the stored T-square.

Abstract: Drawing apparatus for the preparation of technical drawings has a support for a drawing board on which paper may be attached. The support defines a frame surrounding the board which frame includes an upstanding lip for engagement by drawing instruments. Front, rear and side walls depend downwardly from the frame, and flare outwardly somewhat so that a series of apparatuses may be stacked for storage, with one nested partially within another. The lower edge of each side wall defines shoulders arranged so that the drawing surface may be disposed at one of three different angles to the horizontal when placed on a support surface, with that surface engaging different parts of the side walls. The frame may include an open-topped recess for holding drawing instruments, which recess will be closed by the next apparatus up, in a stack of such apparatus.

Abstract: A tool guide temporarily attachable to vehicle body panels or other surfaces to provide a straight edge, and a contour sander for use in connection with a straight edge. The tool guide includes an elongated member having a longitudinal edge surface for guiding a work tool, and suction cups mounted on tongues extending laterally from the body of the tool guide. The tongues are angled in relation to the body, so that the tongues exert a cantilever force urging the tool guide against a surface when the tongues are secured against the suction cups. The contour sander includes a number of flat blades mounted side-by-side and each having a longitudinal edge for contacting a contoured work surface. A clamp holds the blades in parallel juxtaposition and selectively loosens the blades for conforming contact with the contour. Finger grips are formed at the ends of the blades, allowing the operator to raise or lower any particular blade and obtain a sharper or more accurate reproduction of contour if desired.

Abstract: Miter apparatus for use with a cutting tool having a table top containing an alignment groove. The miter apparatus includes a guide bar adapted to slidably fit in the alignment groove, a head assembly pivotally secured to the guide bar, and a telescopic fence assembly secured to the head assembly. The fence assembly is adjustable in length and includes an inner rail telescopically received within an outer rail, each rail being provided with a retractable workpiece stop which is pivotally mounted on its rail so as to be movable from an operative to a retracted position. A clamping mechanism may be provided for securing a workpiece in position against the guide bar.

Abstract: An attachment for a framer's square which permits the framer's square to be self supporting on a flat, horizontal surface. The attachment has an elongated support bar with two clips which may be inserted over a blade of a framer's square. This attachment, when inserted on the inner edge of the framer's square, facilitates the scribing of a right-angle line to a rounded edge and when placed on an outer edge, permits the square to be free standing.

Abstract: This invention provides a guide for hand held power tools for use in cutting sheet material and the like, comprising a T-square having a straight edge adapted to abut the edge of sheet material and an arm extending normal thereto across the sheet material having a hinged base plate capable of being fastened at adjustable locations along the arm at measured dimensions from the straight edge. Power tools, such as circular saws or routers, may be mounted on the base plate which is pivotal between a raised position in which the power tool is out of engagement with the sheet material and a lower position in which the cutting tool engages the material.

Abstract: A combination simple and compound mitre gauge along with a precision split fence constitute the subject matter of the present invention. Both the mitre gauge and fence are intended to be utilized with power woodworking tools. The mitre gauge constitutes both a simple and compound gauge by utilizing an elongated member which slides in a groove on the supporting table and a suppport plate coupled with the member which is movable about a vertical axis and can be held in a given position by appropriate locking means. The support plate presents a vertical surface which mounts a guide that can be moved into one of two positions to vary the length of it. The guide may also be removed and a planar surface presenting shoe pivotally coupled with the support plate. The angle of the planar surface of the shoe may be varied and means is provided for locking the shoe in any given position.

Abstract: A plotting and drafting apparatus comprises a drawing implement having a body, a rule portion and a device for connecting the rule portion to the body. The body has a first surface and a first generating device for generating a first series of juxtaposed parallel linear magnetic poles in the first surface. The poles of the first series extend linearly in a first direction of parallelism with adjacent poles being spaced apart laterally from each other in a first direction normal to the first direction of parallelism. The rule portion has a datum edge disposed at an angle relative to the first direction of parallelism. The apparatus further includes a supporting device having a second surface for supporting the drawing implement and has a second generating device for generating a second series of juxtaposed parallel linear magnetic poles in the second surface.

Abstract: A device including a support base mounting a transparent plate thereon is provided wherein a pattern for knitting is secured between the transparent plate and the base. The base includes spaced upstanding wall bars wherein a left bar includes a lineal measuring gauge and the right bar includes a plurality of gauges and an associated slide for each gauge for accounting of the number of rows in a knitting procedure as well as the associated pattern utilized in a particular knitting procedure. The plate is secured within the base by a plurality of forward corner braces and rearwardly by utilizing fasteners directed through apertures formed within the plate received within the base. Further, a sliding gauge is slidedly mounted overlying the plate for effecting a counting of stitches utilized within a knitting operation.

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: A draughting apparatus 10 comprising a plurality of substantially planar symbols elements 30 having raised outlines 50 for depicting predetermined symbols 32, a support panel means 12, 16, for supporting the symbols elements 30 in a generally planar layout, said symbols elements 30 being provided with symbol element locating means 34, 16, and symbol transfer means comprising a self-duplicating set of sheets 36 of draughting material having at least two sheets 36, and a pressure transfer means 24, said at least two sheets 36, being disposable between said raised outlines 50 of said symbols elements 30 and said pressure transfer means 24 so that pressure applied by said pressure transfer means 24 causes the outline of said symbols 32 to be transferred to at least one of said two sheets 36 to create an image of said symbols outlines thereon.

Abstract: A control apparatus insures precise reading or entry of data in the proper columns and rows or lines of chart sheets mounted atop a board. The same columns with appropriate indicia appear on both the top of the chart sheets and on a vertically shiftable ruler member attached to the board. A slide block associated with the ruler member not only maintains the ruler in a positive horizontal disposition parallel to the chart sheet rows but automatically adjusts in height to accommodate a varied amount of chart sheets on the board.