Abstract: A tool for assisting the process of marking or cutting structures in a predefined manner is disclosed. The tool comprises a rod member having a longitudinal axis and a plate member rotatably attached to the rod member. The tool comprises an arm removably attached to the rod member and to the plate member. The plate member is rotatably attached to the rod member by means of a structure comprising a joint and one or more magnetic or magnetizable structures configured to provide a magnetic force between the rod member and the plate member.

Abstract: An L shaped versatile, combination construction square for a carpenter having measured marks for all common framing combinations about its six sides. A series of template openings, as well as two adjustable base arms able to set angles for setting plumb, lock into a position to cut rafter tails and birds mouths as well as stair treads and risers. It has a precise scale that accommodates a traditional carpenter's rectangular 3/16 inch wide pencil lead that allows for ? inch increments that can be transferred the length of a board using the adjustable arms. It also functions as a framing square and a laser angle finder.

Abstract: A welding gauge and method of use that allows a user to measure the difference in height between a first material surface with that of a second material surface when they are welded together along the same plane or at an angle. The gauge has a first plate with a foot portion and a bottom reference edge. The first plate is connected to a second plate at an axis of rotation corresponding to a circular measurement scale located on the first plate. The gauge also has a third plate that is attachable to the second and slidably connected through vertical slots located in said second and third plates. The third plate has a bottom contact edge and tolerance indicators along its left and right edges that can align with a tolerance measurement scale located on the second plate and along the vertical slot of the second plate.

Abstract: An adjustable angle-measuring device comprises first and second linear arms, a marking member, an arcuate tracking member, a locking element, and at least two support channels. The first linear arm comprises first and second ends. The first end of the first linear arm is rigidly attached perpendicular to a first end of the second linear arm. The marking member is detachably attached to an intersecting surface of the first and second linear arms to form a pivot. The marking member moves along the arcuate tracking member to determine an angular measurement between the first linear arm and the marking member and the second linear arm and the marking member. The marking member comprises a locking element to lock the marking member to the arcuate tracking member. Each of the support channels are positioned at the second ends of the first and second linear arms to detachably attach extension members.

Abstract: A pivoting construction square is provided for measuring angles between adjacent planes, for drafting arcs or circles, and for quickly comparing measured angles to a roof pitch. The device comprises a first and second arm member pivotably attached to one another, wherein the outer ends thereof include apertures for accepting a writing utensil therein. A cross member is connected therebetween, one end thereof being pivotably fixed and the other being slidably disposed within an elongated rail. A locking pin member is adapted to lock the slidable end. Measurement indicia are provided along one arm to correspond to angles, while a quick reference guide comparing angles to roof pitch is also provided. Both arms include a bubble level, while one arm further includes a plurality of aligned apertures to receive a writing utensil. In this way, the device functions as a construction square, a compass, a ruler, and a protractor.

Abstract: A tool for use when laying out lines on stair stringers or roof rafters along which cuts are to be made. The step and rafter tool includes a framing square, an angle bracket and two carriage bolts with washers and wingnuts. Each leg of the framing square has a longitudinal slot which is about 90% of the length of the leg. The angle bracket has two central longitudinal slots in the first flange, each of which is about 40% of the length of the angle bracket. The angle bracket is positioned against the framing square so that two carriage bolts are place within holes formed by the overlapping slots of the bracket and square with washers and wingnuts assembled therein. With the wingnuts loose, the angle bracket can be positioned wherever is desired with respect to the framing square and then the wingnuts are tightened.

Abstract: A tool for use when laying out lines on stair stringers or roof rafters along which cuts are to be made. The step and rafter tool includes a framing square, an angle bracket and two carriage bolts with washers and wingnuts. Each leg of the framing square has a longitudinal slot which is about 90% of the length of the leg. The angle bracket has two central longitudinal slots in the first flange, each of which is about 40% of the length of the angle bracket. The angle bracket is positioned against the framing square so that two carriage bolts are place within holes formed by the overlapping slots of the bracket and square with washers and wingnuts assembled therein. With the wingnuts loose, the angle bracket can be positioned wherever is desired with respect to the framing square and then the wingnuts are tightened.

Abstract: A square with longitudinal slots in the angular arms, a rule having a longitudinal slot, and two clamping screws for securing the rule in various angular positions on the arms of the square, so that the scale may be shifted on the square to establish a number of angles, and be maintained at its adjusted position. Spirit levels are provided on each of the square arms and on the rule. The square arms and rule are thick thereby providing saw guides. The square arms are each marked with measuring scales as well as with markers for twelve inch or sixteen inch center layouts. The rule is marked with a plurality of degrees for common pitch lines and hip and valley pitch lines.

Abstract: An obtuse angle range adjustable square provides an extended angle adjustment that minimizes the user's reach distance required to mark framing cuts. The frame of the obtuse angle range adjustable square has a triangular section and an extended slot extension section that allows a pivoting guide mounted on the frame to be set to a range of acute and obtuse angles providing flexibility in the use of the square. The pivoting guide may be stably rested on a framing member edge to mark the transverse side of the member.

Abstract: A multi-purpose framing square has an elongate blade having a T-shaped slot with an L-shape at the base of the T-shaped slot. A handle has a top end has a handle thumbscrew hole. The handle is boltably attached through the handle thumbscrew hole to the blade through the blade T-shaped slot. The handle has a handle cavity through which the blade can move. A handle support pin is detachably connectable to the handle.

Abstract: A support for steps, having the shape of a triangular corner plate to be installed one after the other along a stringer. The sides of this support are reinforced, horizontally and vertically by a 90 degree fold, to fix the steps and risers. The ends are wider and possess a number of fixing holes to provide more stability when fixed against a stringer. The horizontal side is ended by a projecting horizontal rule. The wide part of the vertical side is flanked by vertical graduations. The horizontal rule is set against a stringer at a desired step run and the vertical graduations are set against the stringer at a desired step rise. The horizontal rule overlaps the vertical graduations of the preceding support.

Abstract: A multi-purpose, multi-function tool of compact design made up of a plurality of components having levels thereon which interact together to provide a single tool which can perform a number of various functions or purposes within the design or construction industry. The tool having a support of predetermined thickness and being of a substantially triangular-shaped configuration defining a pair of legs and a hypotenuse. An edge member is situated on one of the legs of said support structure, the edge member being of a predetermined thickness greater than the predetermined thickness of the support structure for supporting the support structure on a surface. A rotatable member is pivotally mounted on the support structure for selective rotational movement with respect thereto and a curved extension protruding from the rotatable member having degree and rise markings thereon.

Abstract: An angle guide instrument having particular utility for handrail installation which includes a body portion having an outer arcuate edge and first and second arms which are pivotable with respect to the body and are used in conjunction with levels mounted to the body for determining angles for purposes of cutting sections of handrail. In a preferred embodiment the arms include extensions which are profiled so as to be cooperatively seated with a section of handrail.

Abstract: A combination square and multi-purpose hand tool can be utilized as a large number of hand tools including a square, bevel square, stud and ceiling strapping spacer, clamp, caliper, string tender, and scribe. A first L shaped member includes a blade portion and a handle portion. A second member is pivotably and slidably coupled to the blade portion of the first member. Individual member dimensions such as the overall length of the first member, the maximum extended length of the second member along the first member, and the width of the blade portion of the first member are pre-established at selected lengths and widths, to provide predetermined functions for the present multi-purpose hand tool such as a stud spacer, ceiling strapping spacer and string tender.

Abstract: A square for laying out and marking run and rise lines on supporting stringers for a staircase has a rake bar connected to slots near the ends of blades of the square. Markings showing a range of horizontal run distances are placed on the outer edge of the long blade of the square, and markings showing vertical rise distances are given on the outer edge of the short blade. The rake bar has a contact surface perpendicular to the plane of the square and has one end alignable with a marking corresponding to a selected run distance and the other end alignable with a rise distance marking. Once aligned, the bar is held in position against the blades by a pair of bolts. Placement of the adjusted tool with the rake bar contact surface flush against a side edge surface of a stringer results in outer edges of the blades being put in positions where horizontal and vertical cuts are to be made in the stringer.

Abstract: The goniometer (1) comprises a scale (203) having three sectors (204, 205, 206) in degrees, grads, and percent. A pointer arrangement (207) is disposed above the scale, and a central arbor bears a handle (208). Fixed in an extension (210) of the handle is a measuring rod (213) which can be used to transfer the angle indicated on the scale to an external item. The pointer arrangement can be locked via a mechanism by a slide (214) disposed in the handle when a locating mark (211is situated over a pointer. The goniometer can be detachably connected to a measuring bar, to which an angle gauge (217) may also be secured.

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: The rafter angle device includes a body in the form of a generally U-shaped plate of metal or the like having a horizontal base and spaced first and second vertical arms at opposite ends thereof. A third arm is pivotally connected to the plate at about the end of the base bearing the first arm and extends beyond the second arm. The third arm may releasably receive and is releasably securable to at least one of the first and second arms in any position between about horizontal and vertical, as by a locking nut. The first arm has a generally triangular support portion secured to the base about halfway along the length thereof and defining a spaced pair of curved slots, with angle, hip rafter valve and common jack plumb cut indicia disposed along the perimeter of the slots thereof. The support portion may also bear door sill and window sill indicia, while at least one margin of each of the three arms and base bear linear indicia in fractions of an inch.