Abstract: A rotation brake for stopping rotation of a spindle assembly on a horizontal directional drill. The rotation brake comprises a brake lock that is actuated by a cylinder and spring to interact with a non-rotating brake cap and a rotating pinion, thereby stopping rotation of the pinion. The brake lock is removed from the pinion by applying pressurized fluid to a cylinder such that a cylinder rod moves the brake lock out of a cavity between the brake cap and the pinion. Upon removing fluid pressure from the cylinder, a compressed spring moves the brake lock back to into the cavity, preventing rotation.

Abstract: A piling planing tool utilizes a cylindrical cutter head connected to a cylindrical cutter ring having teeth for planing the outer surfaces of damaged or deteriorating in situ pilings. Spacer rings are attached between the cutter head and cutter ring to lengthen the planing tool, in order to extend the tool to plane lower outer surfaces of the pilings. A drill bit extends through the planing tool to bore center channels into the pilings. A circular cutting blade is provided beneath the cutter head to plane the top of the piling. The method of reforming in situ pilings utilizes the planing tool to shape pilings so that they can be connected with new pilings. The pilings are connected by an internal steel rebar and sleeve, permanently secured with bonding material to form a single reformed piling having high tensile strength.

Abstract: A countersink cutter or drill/countersink combination or similar rotary cutter or assembly for drilling/countersinking or performing similar cutting operation to precise depths in various applications, including aerospace applications, uses a pneumatically driven pistol grip motor attached to a tool assembly or countersink tool assembly. The countersink tool assembly, which has a multi-fluted cutter, is coupled to and is coaxial with the spindle. The cutter can be preset to a precise depth at the back end of assembly through the slot or using gage stops on the guide rods fastened to brackets by setting the gage between gage stops and the bracket.

Abstract: In FIG. 2, a diameter Dd of drilling edges of a drill is selected smaller than a valley diameter d1 of a male thread of a tap portion, and an inner diameter D1 of a female thread is defined by the valley diameter d1 of the male thread. Therefore, a predetermined radial gap is formed between the male thread 30 formed by the tap portion and the drill. When a tap with the drill is reversely rotated to be pulled out from the female thread after cutting the female thread, the tap released from the restriction may deflectively displace in the diameter direction upon pulling out the male thread of the tap portion from the female thread. However, the drill hardly contacts with the female thread, so that the occurrence of the defective product due to the contact is suppressed.

Abstract: A method of orbital milling is performed using an orbital end mill, which has a cutting bit designed for orbital end milling. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A countersink cutter or assembly and a method for countersinking to precise depths in various applications, including aerospace applications, using a pneumatically driven pistol grip motor attached to a countersink tool assembly. The countersink tool assembly, which has a multi-fluted cutter, is coupled to and is coaxial with the spindle. The cutter can be preset to a precise depth at the back end of assembly through the slot using a gage.

Abstract: A tool for the cutting machining of precision bores in workpieces, with a first machining step which has at least one geometrically defined cutting edge, and with a second machining step which has at least one honing strip with geometrically undefined cutting edges, is proposed. This is distinguished in that the first machining step has at least three support regions which are arranged at a distance from one another in the circumferential direction and which are designed and arranged such that they are supported on the wall of the precision bore during the machining of the latter.

Abstract: A machine is provided for making holes in the legs of a structural angle oriented lengthwise along the X-axis of a mutually orthogonal X, Y, and Z-axis coordinate system. The machine includes a first or main frame, a second frame moveable along the Y-axis relative to the first frame, and a carriage moveable along the Z-axis relative to the second frame. A punch is mounted on the second frame for punching a first hole in the first leg of the angle. A drill is mounted on the carriage for drilling a second hole in the second leg of the angle. The punch has a punch operating axis along which the punch moves longitudinally to punch the first hole and which is parallel to the Z-axis. The drill has a drill feed operation axis along which the drill moves longitudinally to drill the second hole and which is parallel to the Y-axis. The drill and the punch are oriented with the drill feed operation axis and the punch operation axis together defining a common plane.

Abstract: A chisel quickly adjusting and positioning device for a chiseling machine includes a plurality of separating members for adjusting a gap between a sleeve and the bottom of a machine body, and a chisel unit composed of a chisel and a drill fitting lengthwise in the chisel. After the drill is fitted in the chisel and then clamped in a drill chuck, the chisel unit is fitted in the sleeve. Then the separating members can be pivotally moved in or out of the gap between the sleeve and the bottom of the machine body, and then the sleeve is pushed up so that a gap between the chisel blade and the tip of the drill may be formed for quickly adjusting and positioning the chisel unit with the machine body.

Abstract: Since the chip-breaking groove 30 is cut in the inner peripheral surface of the prepared hole 22 by compressing the chip-breaking tool 10 into the prepared hole 22 prior to the tapping process (the cutting process of the female thread) by the cut tap, the chip can be securely broken by the chip-breaking groove 30 and well discharged even in the case that the work 20 is made of the material having the high ductility. Accordingly, for example, as shown in FIG. 10, it is possible to prevent a lot of long connected chips from entwining the tap, it is unnecessary to monitor the tapping work, and it is possible to achieve a complete automation (an unmanned work). Further, it is possible to inhibit the cut tap from being broken due to the pinching of the chip, and it is easy to execute a treatment such as a chip cleaning or the like.

Abstract: A tool for machining workpieces, having at least one cutting edge which is fastened to a main body of the tool. A respective deburring device removes the burrs produced by each cutting edge during machining. The deburring device is supported at the main body near the cutting edge and is movable by an actuatable piston between a retracted storage position in the tool body and an extended active position out of the tool body for deburring after surface machining.

Abstract: An apparatus for cutting dovetail joints comprises one or more trapezoidal mortising chisels mountable on a drill press, each trapezoidal mortising chisel having a trapezoidal cross sectional shape with a particular slope or “pitch” on its non-parallel sides. The trapezoidal mortising chisels are used to cut sockets in the tail board of a dovetail joints, where the sockets have a trapezoidal shape with sloped sides. A given slope can be selected for the sides of the sockets by selecting a trapezoidal mortising chisel having the given slope. A washer is also provided which is mountable about the tilt axis of a tiltable work table of the drill press. The washer has a set of holes located at an angle about the washer on either side of a reference radius, where the angle correspond to the slopes of the non-parallel sides of the trapezoidal mortising chisels.

Abstract: A motion deciding means is provided to decide a motion based on transmitted information which is transmitted from another robot apparatus, so that it is possible to realize a robot apparatus which operates in cooperation with other robot apparatuses regardless of operator's instructions. Thus, such robot apparatuses can constitute a group of robot apparatuses which autonomously move in cooperation.

Abstract: A method for connecting an attachment to a drill press includes: providing an alignment member including a first portion and a second portion, and having a central axis; securing the first portion of the alignment member within the chuck; connecting the attachment to the drill press so that at least a region of the second portion of the alignment member is disposed within the void; and removing the alignment member from the chuck and the void. A mortising apparatus for a drill press is also disclosed, the drill press including a rotatable chuck. The mortising apparatus includes a mortising chisel holder and a mortising chisel holder alignment member.

Abstract: A method for connecting an attachment to a drill press includes: providing an alignment member including a first portion and a second portion, and having a central axis; securing the first portion of the alignment member within the chuck; connecting the attachment to the drill press so that at least a region of the second portion of the alignment member is disposed within the void; and removing the alignment member from the chuck and the void. A mortising apparatus for a drill press is also disclosed, the drill press including a rotatable chuck. The mortising apparatus includes a mortising chisel holder and a mortising chisel holder alignment member.

Abstract: There is a need for an efficient cutter to cut openings in drywall for electrical switch and outlet boxes. Existing cutters typically press out an opening and consequently require great hand supplied force and use of a back plate which must be positioned behind the wallboard.

Abstract: A tool is disclosed herein for drilling a square hole in a workpiece adapted to be mounted in the chuck jaws of a drill press. The tool includes a drive shaft having an enlarged spindle provided midway between its opposite ends. One shaft end releasably engages with the chuck jaws while the opposite end includes a threaded bore. A stationary body rotatably receives the shaft and spindle via a pair of spaced roller thrust bearings and a sleeve bushing. A flat drill downwardly depends from the drive shaft threaded bore and terminates in a spade cutting edge. A hollow square chisel is secured to the body and encloses the flat drill. The flat drill bores a circular or round hole in the workpiece while the square chisel forms the corners of a square hole.

Abstract: A bicycle downtube processing machine includes a drill unit for drilling holes on a downtube for a bicycle frame, first cutting unit for cutting the right end of the downtube by punching, a second cutting unit for cutting a downwards bevel edge on the left end of the downtube by punching, a third cutting unit for cutting an inwardly curved top edge on the left end of the downtube by punching, a first locating unit for moving the downtube to the processing position for processing, a second locating unit for holding down the downtube in the processing position, and a control circuit for controlling the operation of the aforesaid units.

Abstract: A mortising device directed to project a polygonal bore within a workpiece is provided to include a parallelepiped guide tube having a drill bit rotatably mounted therewithin, with the guide tube having window slots arranged throughout alternating walls of the guide tube, with intermediate walls of the guide tube intermediate the alternating walls containing the drill bit in an aligned relationship, with a lowermost end of the guide tube having a continuous chisel edge for projection into an underlying workpiece to effect formation of the polygonal hole structure.

Abstract: An apparatus for installing a reopenable shut-off valve into a flowing high pressure pipe, such as the production pipe in an uncontrolled flowing well, utilizes a cylindrical outer saddle member attached around the production pipe and providing a housing for the drilling, finishing and plugging assembly. The saddle is welded directly to the pipe section or attached via an intermediate layer of epoxy to add rigidity and strength to the pipe section. A rotary drill is advanced completely through the surrounding saddle and the internal production pipe and is followed axially by a valve plug. Sealing engagement of the valve plug in the cut hole may be attained by expanding the plug with internal fluid pressure or by utilizing a tapered plug held in sealing engagement with the similarly tapered hole by the application of an axial sealing force. A method for accessing the production pipe at an underground location for attaching the pipe plugging apparatus a safe distance from the well head is also disclosed.

Abstract: An improved method for forming holes in a board and an improved apparatus for practicing the improved method. Two or three linear arrays of holes are punched through the board, through its expansive faces, in a punching zone. A punch and a die coacting with the punch are used to punch each punched hole, in a press comprising a pressing ram and a pressing bed, upon relative movement of the pressing ram and the pressing bed toward each other. The board is registered in the pressing zone, in a predetermined position, by engaging its opposite edges and its opposite ends. Plural holes are drilled into each end of the board in a drilling zone. A physical measurement is conducted in an inspecting zone, by inserting a probe into each drilled hole, so as to determine whether such drilled hole has been drilled to a minimum depth. These punching, drilling, and inspecting steps of the improved method are carried out in a series of automated operations of the improved apparatus.

Abstract: Disclosed is a turret punch press in which tap holder assemblies TA are incorporated into the press body through tool lifters. Each of the tap holder assemblies TA is composed of a tap holding mechanism, a tap feeding mechanism and a tabular workpiece clamping mechanism formed on the same axis. At the same time, transmission mechanisms DA for selectively transmitting the torque from the press body to the tap holding mechanisms are incorporated into the press body. With a punch press having this construction, tapping can be performed on the same axis as punching.

Abstract: A tapping machine has a base plate fixed to one of the platens, a spindle extending along a spindle axis between the platens in the closing direction of the press actuating the machine, and a nut threaded on the spindle. The nut is normally rotatable about the spindle axis on the base plate and the spindle is fixed nonrotatably about the spindle axis on the other platen so that relative displacement of the platens rotates the nut in the base plate. An element displaceable on the base plate along an element axis but nonrotatable on the base plate about the element axis carries a plurality of tap holders generally fixed relative to the element axis in the element and rotatable in the element about respective tap axes parallel to the element axis. Respective taps are fixed axially and rotationally in the holders.

Abstract: An improved apparatus for drilling, countersinking, inserting and forming the head of a rivet in a workpiece comprising a base which holds a lower anvil assembly in correct linear relationship with an upper ram assembly; a lower anvil body mounted on the base and a removable anvil insert having a common long axis with the anvil body, the upper ram assembly, and the rivet on which a head is being formed.

Abstract: A stamped contact is disclosed having an integral closed crimp barrel suitable for military/aerospace applications. In one embodiment, the crimp barrel has a rectangular cross section. A method is disclosed for making the contact in which the contact is stamped from a sheet having a relatively thick marginal edge which provides the rectangular crimp barrel for the contact. The bore in the barrel is drilled after the stamping operation.

Abstract: A generally portable sheet material cutting tool comprising apparatus having a substantially stationary sleeve member with a free end and a cutting tool reciprocable within the sleeve member, the cutting tool having both a transverse cutting edge formed along its length cooperable with the free end of the sleeve member and an initial hole forming means extending beyond the free end of the sleeve member. The reciprocation of the cutting tool is effected by cam means acting in response to rotary motion supplied by a hand held drill unit or by a rotary drive motor, the cam means being capable of being disengaged by axial pressure applied to the initial hole forming means. In one form of the apparatus the transverse cutting edge is given both a reciprocating and a rotating component of motion, and in a modified form of the apparatus the transverse cutting edge is restrained for reciprocating movement only.