Abstract: A portable electrical drilling assembly includes an electric motor rotating a gear contained within a gear box housing, a connector reversibly coupling the gear to a splined shaft with the splined shaft extending within and engaging an internal surface of a cutter or reamer with the shaft and cutter/reamer defining a cutter-spline drive, a pivoting power feed mechanism coupled to the gear box housing, and a spindle coupled to the feed mechanism for receiving the cutter or reamer. The gear rotation rotates the splined shaft and reamer/cutter to drill/ream a hole, with the pivoting of the power feed mechanism controlling the depth of the drilled or reamed hole. The separate coupling of the splined shaft and cutter/reamer and interchangeability of cutters/reamers allows the assembly to be used in a confined space while still achieving deep drilling of holes in workpieces. The cutter-spline drive can be used in other drilling assemblies.

Abstract: The present invention is an assembly and method for continuously manufacturing fasteners. A die press actuated at a first speed receives the contoured wire into a die having a piercing element for piercing an aperture and a cutting element for cutting a fastener from the wire. A guide receives the fasteners from the die press and a drive unit engages the fasteners oriented by the guide and conveys the fastener to an elevated height relative to a tapping device. The guide redirects the fasteners by a first router. The fasteners are gravity fed into the first router and redirected to one of the tapping devices. Each tapping device has a tapping element for forming internal ribs in the aperture of the fastener. The tapping devices each actuates at a second speed that in aggregate is generally equal to the first speed of the die press.

Abstract: A method of manufacturing hollow body elements such as nut elements for the attachment to components consisting normally of sheet metal, in particular to the manufacture of hollow body elements with an at least substantially square or rectangular outer periphery by cutting individual elements by length from a section present in the form of a bar section or a coil after prior punching of apertures in the section, optionally with subsequent formation of a thread cylinder, utilizing a progressive tool having a plurality of working stations in which respective processes are carried out is characterized in that in each working station two respective operations are carried out for the section, or for each of a plurality of sections arranged alongside one another, for each stroke of the progressive tool at the same time. A hollow body element and also a progressive tool are also claimed.

Abstract: A part-supply apparatus provisionally holds each part delivered from a parts-passage in a temporary holding chamber having an outlet aperture before delivering the released parts to a predetermined point from the outlet aperture by means of forward movement of a supply rod capable of moving itself back and forth; wherein, in order to prevent the second parts from coming into abnormal engagement with the preceding parts at the predetermined position in the tempoary holding chamber otherwise resulting in the inability to execute normal supply of parts, a constraining device for constraining transfer of the following parts is provided in the parts-passage immediately before the outlet aperture.

Abstract: This invention is intended to provide a continuous parts feeder capable of continuously feeding parts to a metal mold installed in a pressure machine such as a press.An actual example of this invention consists of a parts transport pipe (40) that uses compressed air to feed parts, magazines (42, 44) that feed parts sequentially to this parts transfer pipe (40) with compressed air, and a coupling device (46) that can selectively switch the entrance of the parts transport pipe (40) between the outlets of at least two magazines (42, 44). It will also be equipped with an auxiliary compressed air supply device (57) that supplies auxiliary compressed air to the inside of the parts transport pipe according to information from the parts detector (56) which determines whether there are or are not parts inside the parts transport pipe (40), so that the transport of parts inside the parts transport pipe is performed smoothly. The coupling device (46) is automatically controlled by the automatic control device (48).

Abstract: A machine and method for continuous thread tapping of threads in fasteners such as nut blanks or the like having a fastener blank advancement mechanism incorporated into a fastener blank holding and guidance assembly. A continuous stream of fastener blanks are fed into and securely held and advanced onto a tap by a modular worm jaw assembly. Fastener blanks are continuously fed into the worm jaw assembly so that a continuous progression of blanks are advanced onto the tap by forward turning of worms rotating within laterally opposed jaws which hold the fastener blanks and prevent them from rotating as they are advanced over the rotating tap. Once the nut blank is advanced over the tap, it is pushed by a progression of successive nuts along the length of the shank which supports the tap to the end of the shank opposite the tap die from which the tapped nuts drop into a receptacle. The worm jaw assembly is of modular construction to facilitate easy removal and replacement.