Abstract: A foldable horizontal ruler, comprising a ruler body having at least two or more ruler units, wherein a connecting end is arranged on the ruler unit, a connecting block is arranged between the ruler units, and the connecting end forms a rotating kit with the connecting block so that the adjacent ruler units can be folded. The connecting end, arranged on the ruler unit, is provided with a connecting block, and the adjacent ruler units can be folded through the connecting block. The ruler body can be folded in multiple segments by designing more than one set of ruler body units, which makes the storage or carrying become more convenient. The magnet is arranged on the rotating shaft and the fixed pin, and the end of the ruler unit exposed. The magnet forms adsorption with the measured object, which reduces long-time lifting and reduces the user's level of fatigue.

Abstract: A measuring device is formed to have one or more joint structures, each joint structure connecting two deformable resilient concave elongated pieces of material (U-channel sections). The joint structure selectively enables the two U-channel sections to be held relative to each other in a substantially overlapping unextended position as well as in a substantially non-overlapping extended position. In both positions, the resilience of the material enables the U-channel sections to be substantially positionally secured relative to each other. The deformable nature of the material enables the U-channel sections to be rotated relative to each other to transition from the collapsed position to the extended position, or from the extended position to the collapsed position. Continuous linear graduated markings are applied to the U-channel sections.

Abstract: A folding rule including at least three links that are pivotably fastened to each other, at least one of the links has a scale for measuring the diameter of objects, the scale is designed in such a way that, when the object is completely enclosed by three adjacent links wherein the insides of the three links are each in contact with the object, a specified region of one of the links is in contact with the scale and a respective contact point on the scale indicates the diameter of the object.

Abstract: A segmented measuring assembly and pivot connection system for the segmented measuring assembly. Embodiments of the measuring assembly comprise a first and second ruler section, each ruler section having a section length, a section width and a section thickness, each ruler section further comprising a section proximal end, a section distal end, and a pivot connection system connecting the distal end of the first ruler section and the proximal end of the second ruler section whereby the second ruler section pivots in relation to the first ruler section about a pivot connection assembly. In some embodiments, the ruler sections have a plurality of section through holes extending through the section thickness along the section length. In some embodiments, the ruler sections have curved ends whereby there is no overhang of the curved ends when the ruler sections pivot in relation to each other.

Abstract: An inch rule for reading off distances has at least one lighting element that is adapted to lights up the surroundings.

Abstract: A guide rail for a hand-held power tool includes at least two rail elements, which are to be joined together to form a common rail and which are held on one another by means of a releasable connecting device. The connecting device includes a joint device, by means of which the individual rails can be pivoted between a folded-together non-functioning position and a functioning position that lies in a common plane.

Abstract: A device for preparing to mount a wall fixture includes a main base having opposed first and second ends and a first auxiliary base having a substantially similar configuration. The first auxiliary base is coupled to the main base and movable between a closed configuration in which the first auxiliary base is positioned substantially atop the main base and an open configuration in which the first auxiliary base is linearly adjacent the main base. The main base and first auxiliary base each define a slot extending longitudinally between respective first and second ends. Each base includes a marking member situated in a respective base slot and slidably movable therealong. Each base includes a respective locking assembly for securing a respective marking member at a desired position along a respective slot. Each marking member includes a pointed distal end for making a starter hole when depressed against a wall surface.

Abstract: A measuring device is provided that may be selectively configured between an extended condition and a collapsed condition. The device includes a first member, second member, flexible housing, and securing means. Each member has a proximal end, distal end, and convex surface. The convex surfaces are flexible such that the members may bend about a bending axis of the device and resilient such that the convex surfaces are biased toward their stable convex shape and the device is biased toward the extended condition. The first and the second members are disposed within the flexible housing to form a covered pair having a proximal end and a distal end. The apex of the convex surface of the first member is opposite the apex of the convex surface of the second member when the members are disposed within the flexible housing. The securing means secures the measuring device in the collapsed condition.

Abstract: A foldable measuring device includes a number of segments pivotally connected together with pivot axles, one segment includes a recess and an aperture for receiving a pivot axle, the other segment includes a protrusion for engaging with the recess of the other segment and includes an orifice for receiving the pivot axle, a spring biasing member is engaged into the other segment and engaged with the pivot axle for biasing the segments toward each other, and a cover segment is attached to the other segment for covering and shielding and protecting the spring biasing member, and for preventing the spring biasing member from being exposed and damaged by the other segment.

Abstract: A folding ruler is provided. One embodiment of the folding ruler includes a first panel, a second panel, a hinge and a stiffening member. The first and second panels are interconnected end to end by the hinge so that the ruler can move between a folded state wherein the first and second panels are generally parallel and overlapping, and an unfolded state wherein the first and second panels are coplanar and oriented end to end. The stiffening member couples with the first and second panels to lock the first and second panels in the unfolded state. In some embodiments the stiffening member provides a grip for holding the ruler.

Abstract: A folding rule includes a plurality of segments having length indicating indicia thereon, including a plurality of intermediate segments having a length to thickness ratio in the range of 40:1 to 60:1; the segments pivotally connected together and pivotally moveable between a collapsed configuration wherein the segments are stacked and an extended configuration wherein the segments are linearly aligned along a measurement axis, wherein at least one intermediate segment rotates by approximately 180° with respect to an adjacent intermediate segment to move between the collapsed configuration and the extended configuration; the segments formed of a generally homogenous electrically non-conductive mixture of wood and plastic. The intermediate segments may be substantially identical except for the length indicating indicia thereon, and at least the intermediate segments may be hydrophobic and be formed of a generally homogenous mixture of wood and ABS plastic.

Abstract: A drywall square having a straight long arm of at least forty-eight inches. The long arm has a first end and a second end, wherein the long arm is segmented into a plurality of sections between those ends. A straight short arm intersects the long arm. A first hinged joint connects the first end of the long arm to the short arm. The first hinged joint enables the short arm to be oriented at a perpendicular to the long arm or folded in parallel atop the long arm. The sections of the long arm are also connected by hinged joints. This enables the sections of the long arm to be unfolded into a linear configuration or folded together into a neat stack. Connectors are also provided that are used to retain the square either in its fully open configuration or its fully folded configuration.

Abstract: A distance measuring tool including a plurality of substantially flat unit members each having ears at opposite ends of opposing sides and measurement marks along a side extending between the opposing sides, with pivot members pivotably secured between the ears at opposite ends of opposing sides of adjacent unit members. The unit members are pivotally secured to adjacent pivot members along two spaced pivot axes, where the ears define the pivot axes a distance X from the ends of the ears and the pivot members define the pivot axes spaced apart a distance at least 2X. The unit members have a thickness Y and the pivot members have a width W, where 2X<W<2Y and, in another form, the ears are rounded to avoid interference with an adjacent ear when the unit members are pivoted relative to the pivot members. The pivot axes are defined by axially aligned pins pivotably received in recesses.

Abstract: A distance measuring tool including a plurality of substantially flat unit members each having ears at opposite ends of opposing sides and measurement marks along a side extending between the opposing sides, with pivot members pivotably secured between the ears at opposite ends of opposing sides of adjacent unit members. The unit members are pivotally secured to adjacent pivot members along two spaced pivot axes, where the ears define the pivot axes a distance X from the ends of the ears and the pivot members define the pivot axes spaced apart a distance at least 2X. The unit members have a thickness Y and the pivot members have a width W, where 2X≦W≦2Y and, in another form, the ears are rounded to avoid interference with an adjacent ear when the unit members are pivoted relative to the pivot members. The pivot axes are defined by axially aligned pins pivotably received in recesses.

Abstract: A folding rule includes a first stick having a first hole with a plurality of first protrusions located radially around the first hole. A second stick has a second hole with a plurality of second protrusions located radially around the second hole. A rivet has a resilient member mounted thereto and extends through the first hole and the second hole. The first protrusions are engaged with grooves defined between the second protrusions. The resilient member is compressed so as to disengage the first protrusions on the first stick from the grooves in the second stick. By this way, the first stick is pivoted relative to the second stick.

Abstract: The accessorized collapsible multiscale comprises a plurality of elongate slats which are joined together along elongate edges thereof, each slat including at least one graduated scale thereon, the multiscale being collapsible by folding together of adjacent slats, and the multiscale including an accessory clip which is used to maintain a terminal position of a desired slat, with the clip angling the slat relative to a support surface therefor for ease in viewing the scale on the desired slat.

Abstract: A transparent measuring device for topographical maps is graduated for converting a particular map scale in units of yards and/or fractions of a mile. The measuring device has a substantially rectangular body having a first, second and third top face, a first and second side surface and a bottom surface. The third top face is disposed between said first and second faces as a distinct magnifier. The first top face has a graduated scale including indicia for designating a measuring scale in units of yards. The second top face has a complimentary graduated scale including indicia for designating a measuring scale in units of miles which is directly correlated with measurements made in units of yards on the first face by a scalar conversion factor. A plurality of the measuring scales are attached at single point as and forms a unitary kit of measuring devices for measurements requiring different scales.

Abstract: A folding collapsible body-height measuring gauge including: a scale having a plurality of scale elements pivotably connected with one another in a series, each scale element having a coupling block at one end and a coupling open chamber at an opposite end for connection; a measurement indicator longitudinally slidably mounted on the scale; and a base having a coupling block at its one end adapted for supporting the scale in a vertical position for measuring the height of the body and two pivoted legs at its opposite end, the coupling block of the base having two coupling portions disposed at different elevations and adapted for coupling to the scale.

Abstract: A guide having a unique folding construction which enables the guide to have all of its components oriented in a straight line condition or enabling the end components to be oriented in perpendicular relation through a novel hinge structure at the juncture between the two end components. The hinge structure includes a triangular rigid component that is connected to the end components by a hinge structure having angularly disposed hinge axes between a triangular connecting member and two end components so that the end components can be oriented in perpendicular relation, in overlying relation or in longitudinal alignment. The foldable guide device may be used for various purposes and is preferably constructed of transparent material and provided with various indicia, guide lines and the like which enable it to be used for various purposes including assistance in accounting entries in a ledger or the like.

Abstract: An reversible adjustable pivot angle square (10) comprising a a base blade (20) that contains a reversible level and plumb means (62) rotatably connected to a perpendicular travel blade (22) that contains a reversible level and plumb means (64) in an arrangement that forms an adjustable orthogonal position. The travel blade (22) design allows rotation to a 360 (three hundred and sixty) degree range. An angle blade (26) is angularly and rotatably connected to the base blade (20) at approximately mid center of the base blade (20) elongation. The base blade (20) design allows rotation to a 360 (three hundred and sixty) degree range. The travel blade (22) contains a through slot which runs substantially along the travel blade (22) elongation. The through slot serves as a travel blade slot (24) for the angle blade (26). Once the angle blade upper end (38) is slidably and adjustably connected to the travel blade slot (24), the adjustable pivot angle square (10) is completely pivotally and rotatably connected.

Abstract: An angle measuring instrument provides two straight arms connected at one end for relative pivotal movement. A telescoping assembly includes two elongated telescoping members each providing a free end. The free end of one telescoping member is pivotally connected to one arm and the free end of the other telescoping member is connected to the other arm. The telescoping members provide scales indicating the angular position between the two arms, the distance between the pivots of the free ends of the telescoping members on the arms, and a correction to be added to or subtracted from measurements along the length of the arms to establish distances from the corner which is being measured. The two arms can pivot through a full 360 degrees relative to each other, permitting the measurement of inside and outside corners of all sizes. A straight edge is removably mounted on one of the arms when measuring outside corners.

Abstract: A folding extension ruler is provided and consists of a device for extending each arm of the ruler to twice its length from middle of the arm, a device for locking each arm in its fully extended position and appropriate measuring indicia located on each arm and extending device.

Abstract: A flexible marking and measuring instrument which can be folded or rolled as may be desired or convenient comprising a plurality of preferably elongated, rectangular, flat, thin members parallel one with another and sequentially flexibly connected one to another whereby the marking instrument may be folded or rolled to fit in a pocket or tool chest and/or bent or flexed to follow substantially any surface such as, for example, an elongated pipe, board, inside and outside corners, or surface of substantially any configuration. The parallel members may, inter alia, be of the same or different widths, the instrument may be provided with portions that are foldable at the same or different angles, the instrument may be provided with edges defining predetermined angles, the instrument may be provided with marking holes, and/or the instrument may be provided with such indicia as may be desired including but not limited to dimensions in English and/or metric units and lines designating angles.

Abstract: A combination of bi-directional levels is provided as an integral part of the projecting terminal section of a very thin rule. Assembly within the rule section is accomplished by means of over-sized apertures to receive centrally disposed therein fluid level cylinders with a casting of transparent hardened moldable base material encompassing the rule, and interstitially surrounding said levels such as to form a capsular structure maintaining the rule in proper spaced relation for folding, in the instance of a folding rule, with a structural reinforcement for the section of rule supporting the levels.

Abstract: An accessory is adapted to be attached to a foldable ruler to enhance the use of a foldable ruler in measuring the distance between two spaced-apart surfaces or elements. The accessory enhances accurate measurement and facilitates precise reading of such measurements. The accessory comprises a sheath and a bar. The sheath includes a lower channel, an upper passageway positioned above the channel, a window opening into the upper passageway, a hairline index provided adjacent to the window and spaced from one end of the sheath by a distance equal to the distance between the axis of the hinged connection of adjacent ruler sections and a free end of one of the sections which is adjacent to the axis. The bar comprises one portion without indicia and one portion having indicia or graduations thereon. A stud can be provided on the bar to engage a groove within the passageway in order to limit the slidable movement of the bar within the passageway.

Abstract: An insulation depth gauge for measurement of insulation depths within an attic at remote locations has a handle for extending linear measuring means to remote locations and indicia to indicate the depth of insulation at that location.

Abstract: A straight edge for use in construction formed of a plurality of members joined by hinges to an end member fitted with a slidable section mounted by a dovetail groove and tongue. The butt sections of each member are fitted with a magnet at each hinge joint so as to latch the unfolded members together in the extended position.

Abstract: An attachment for a carpenter's folding ruler has an elongated body with a longitudinal slot. The slot is dimensioned to accept the ruler and the ends of the body have flat sections against which part of the ruler can be folded to form certain angles. One of the ends makes a 90.degree. angle with the axis of the slot while the other end is at some angle less than 90.degree.. A level is provided on the body so that it may be vertically or horizontally positioned.