An apparatus and method for preparing Double Cantilever Beam (DCB) specimens are disclosed as an apparatus and method for conducting Mode I fracture resistance testing using the DCB specimens. In a first embodiment, a drill jig is used to locate the DCB specimen and guide a drilling process during creation of at least one through-hole in the DCB specimen. The drilling process may employ a traditional drill and drill bit, a laser drill, or a water jet. In another embodiment, a set of rotating pin blocks, each with a full-round or a half-round specimen pin at one end and a hanger full-round pin at the other end, engage the DCB specimen and facilitate the internal application of a fracturing load to the DCB specimen for the Mode I fracture resistance test. The present invention may significantly reduce the time and materials needed to prepare and test a DCB specimen.

Disclosed is a quick clamping fixture for a pocket hole jig, which comprises a base, a clamping block slidably arranged above the base and a locking mechanism for locking the clamping block from free sliding, wherein one side of the base is provided with a back plate, and the clamping block is provided with an accommodating cavity for accommodating the pocket hole jig, and the clamping block slides to clamp wood boards with different thicknesses between the back plate and the pocket hole jig; the pocket hole jig is installed on the clamping block. During working, the pocket hole jig and the locking mechanism are located on the same side of the wood board, which can quickly realize the clamping, punching and disassembling of the wood board.

These inventions include three drill guides (Multiguide, Triguide, and Uniguide), and two attachments (canting base and dowel jig). The drill guides allow users to drill holes to prescribed depths into flat work surfaces using various sizes of bits including twist and auger bits while eliminating marring and reducing wood splintering. The canting base attachment allows users to drill holes to prescribed depths and at variable angles into flat surfaces and both large and small cylinders having zero, one, or two free ends using various kinds and sizes of drilling tools including twist, auger, and Forstner bits. The dowel jig attachment allows users to drill dowel holes to prescribed depths in edges and faces of workpieces that are evenly spaced apart by numerous gauged distances and at adjustable distances from edges without slippage or misalignment. These inventions have drill press-like capabilities and can be used in fields and shops.

An assembly for guiding a drill bit of a drill assembly comprises a chassis and a centering bushing, comprising an exterior conical portion and a central opening. The assembly further comprises a vacuum-cup bracket, coupled to the chassis and adjustably positionable relative to the chassis along a second axis. The assembly also comprises vacuum cups, coupled to the vacuum-cup bracket. The assembly additionally comprises a pressure foot, coupled to the chassis at the first end of the chassis and adjustably positionable relative to the chassis along the second axis.

The invention relates to jig apparatus (2) for use in the positioning of a workpiece (22) in which one or more apertures are to be formed using a power tool (25), said jig including at least one elongate member (30, 32, 34), which is extendable from a side of the base (4) of the jig and connected thereto via engagement means (40). A locator (56) is selectively positionable on the elongate member and lockable in the said selected position to allow the workpiece to be located therewith and thereby locate the workpiece in a required position with respect to the jig apparatus.

Jigs, fixtures, accessories, and the like for locating, aligning, guiding, engaging, and/or holding a workpiece on a woodworking machinery during a woodworking operation are described, as well as methods of making, modifying, and using jigs, fixtures, and accessories.

An automated clamp is disclosed including a clamp frame, motorised clamp jaws, and a robot end effector connector. One of the clamp jaws can receive a drilling tool and/or a fastening tool. One of the clamp jaws has a position sensor for detecting a position of the clamp. The clamp forms part of an automated clamping system. The clamping system is used to automatically clamp a rib web to a rib post or integrated rib foot of an aircraft wing box for automated drilling and/or fastening the rib web to a rib post or integrated rib foot.

A machining tool assembly is provided for machining a blank to form a firearm lower receiver. The assembly includes a pair of side plates positionable on opposed sides of the blank to capture the blank therebetween. A template plate having a template aperture is adapted to be removeably attachable to the side plates. The template aperture is aligned with a top surface of the blank and is adapted for machining a cavity within the blank having a peripheral contour complimentary to a peripheral contour of the template aperture. A centering mechanism is adapted to be removeably attachable to the template plate, with the centering mechanism including an opening aligned with a corresponding void formed on the blank to align the blank with the template plate.

A drill jig apparatus configured to be coupled to a locomotive bedplate is presented. The apparatus can include a first member and a second member. The first member can be configured to attach a drill to provide stability while drilling, and the second member can be operably coupled to a locomotive, such as to an engine and bedplate of a locomotive. An engine dowel drilling system is also presented, which can include a drill jig member and a bushing member, and the members can be operably coupled with one another. A method of drilling holes in a locomotive bedplate can include using a drill jig and a bushing to facilitate drilling, and the drill jig can be a conductor-side jig or an engineer-side jig. A kit is also presented for engine dowel installation that can standardize dowels and dowel holes.

A lock and pin for the structural and fluid tight repair of cracks not amenable to high temperature repairs or synthetic material patches. Fluid tight pins and locks seal the crack while one or more locks prevent the crack from growing. These repairs need to endure the remaining life cycle of the machinery part while withstanding all the strain, pressure, heat and expansion and contraction of the part before the crack(s) were formed. Often these cracks evolved due to engineering design flaws that will require even greater strength from these areas than when new.