Abstract: An apparatus for interengaging a pair of rows of slide fastener coupling elements on a pair of stringer tapes, respectively, with a pair of top end stops mounted on the stringer tapes respectively at confronting ends of the rows of coupling elements, includes a base and a pairing guide mounted on the base and normally defining a substantially Y-shaped guide channel including a pair of branched guide passages for receiving disengaged rows of coupling elements, respectively, and a joint passage for discharging interengaged rows of coupling elements. The pairing guide comprises first guide means fixed to the base and including first flange means defining the branched guide passages, and second guide means movably supported on the base and including second flange means normally defining the joint passage. The Y-shaped guide channel is thus normally defined jointly by the first and second flange means.

Abstract: A machine for assembling washers on headed screw blanks, comprises a turntable having peripheral recesses into which the washers are inserted. Elevators in the form of vertically swinging arms are mounted on the turntable about the periphery thereof, extending generally radially of the turntable, and are cam controlled to swing vertically relative to the turntable. In their upwardly swung position, recesses in the outer ends of the arms receive screw blanks beneath the heads thereof, the arms then swinging downwardly to insert the screw blanks in the washers that are in alignment below the screw blanks on the turntable. At the discharge side of the turntable, a slideway is provided for complete assemblies; but incomplete assemblies are detected and are disassembled with the parts returned to storage.

Abstract: A method and apparatus for forming space sections in a continuous length slide fastener chain in which the interlocking elements fastened on the carrier tapes within the section are pressed and deformed with a punch-die unit having a composite punch composed of an outer punch and an inner punch and the thus deformed elements are retained by the punch-die unit in engagement with a pair of grooves on the upper surface of the die and lower surface of the inner punch while the carrier tapes are pulled and displaced by individual grippers from the front of the punch-die unit in an obliquely rearward direction, preferably, at such an angle that the angle between the moving line of the gripper and the center line of the punch-die unit is about a half of the tape-abstracting angle whereby all of the elements within the section can be removed from the carrier tape with a uniform abstracting angle.

Abstract: A tube bending machine comprises a bending table mounted on a support turnable about an axis and coaxially carrying an inner bending template surrounded by at least one outer bending template which is shiftable along said axis relative to the inner bending template so that a portion of the tube to be bent may be pressed by clamping means carried by the bending template against the outer surface of the inner or the outer bending template. The bending machine comprises further guide means including a releasable collet for guiding the tube toward the bending templates, the guide means being mounted on the support movable in longitudinal direction of the tube to be bent and in a direction transverse to the longitudinal direction.

Abstract: A positioning member is moved transverse to a slide fastener chain after advancement of the slide fastener chain to a gapping and stop applying station to position fastening elements of the slide fastener chain in a channel extending in the station. The slide fastener chain is clamped and gapped, and a bottom stop is applied to the chain.

Abstract: A device for spreading apart a pair of tapes such as a pair of slide fastener stringer tapes for enabling attachment of a slider thereto. The spreading device includes a pair of lower grip members movable away from each other on a horizontal base, and a pair of upper grip members vertically aligned with the lower grip members, respectively, and displaceable away from each other. The upper grip members are mounted through a pair of collapsible crossing links on a drive shaft vertically movable toward the base. The tapes are disposed on the lower grip members, respectively, and sandwiched firmly between the upper and lower grip members when the drive shaft is lowered to press the upper grip members against the lower grip members. Continued downward movement of the drive shaft causes the crossing links to collapse, whereupon the upper grip members and hence the lower grip members move away from each other, thereby spreading apart the tapes.

Abstract: There is disclosed herein a method and apparatus for fabricating a pulley which the pulley rim is fabricated from a cylindrically-shaped blank of constant diameter which is deformed by relatively movable die forming members so as to form a ring having a V-shaped cross section which may then be assembled to a hub member. Auxiliary forming dies are also disclosed which may assist in the proper formation of the V-shaped cross section. In another form, the pulley rim is fabricated with multiple annular V-grooves. Apparatus effective for carrying out the above method is also disclosed herein.

Abstract: A method and apparatus for producing coil springs formed of wire and with elets formed at the ends thereof are disclosed. The apparatus includes a machine for winding spring bodies detachably affixed to apparatus for transferring them from the winding machine to first and second successive eyelet forming stations wherein, at the first forming station, an eyelet is formed at one end of the spring body and, at the second forming station, an eyelet is formed at the other end of the spring body. The spring bodies are divided into transport groups and supply groups arranged side-by-side on upwardly and downwardly inclined ramps, respectively, with their longitudinal axes parallel and at right angles to the transfer direction. Delivery devices are provided between the downwardly inclined, gravity feed supply ramps and the upwardly inclined transport ramps for the stepwise delivery of spring bodies to the eyelet forming stations.

Abstract: There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle, final tension rate relative to angle and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened. In one embodiment, torque and angle are monitored during tightening. Calculations are conducted, while tightening, to determine the tension prevailing in the bolt at a particular angle of advance. By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fastener is established. From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value. The same technique may also be used merely to monitor tightening which is terminated by a different tightening strategy.

Abstract: A method and apparatus for the continuous production of bright copper rod from stock discharged from a continuous casting machine in which an oxide layer formed on the stock during its passage from the continuous casting machine in the atmosphere is subjected to an initial breakage and separation operation by discharging a chemically active liquid at a relatively low pressure against the oxide layer followed by descaling the stock after the initiation of the breakage of the layer by projecting jets of liquid at a relatively high pressure against the stock. The stock which is now free from oxide layer is rolled in a rolling mill in the presence of cooling and lubricating liquid which isolates the stock from the outside atmosphere and allows the formation of rod in the stands of the rolling mill. The rod obtained from the rolling mill is cooled by passage through a duct in counterflow with a cooling liquid such that the rod leaves the duct at a temperature below 80.degree. C.

Abstract: There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle, final tension rate relative to angle and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened. In one embodiment, torque and angle are monitored during tightening. Calculations are conducted, while tightening, to determine the tension prevailing in the bolt at a particular angle of advance. By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fastener is established. From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value. The same technique may also be used merely to monitor tightening which is terminated by a different tightening strategy.

Abstract: There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle, final tension rate relative to angle and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened. In one embodiment, torque and angle are monitored during tightening. Calculations are conducted, while tightening, to determine the tension prevailing in the bolt at a particular angle of advance. By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fastener is established. From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value. The same technique may also be used merely to monitor tightening which is terminated by a different tightening strategy.

Abstract: There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle, final tension rate relative to angle and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened. In one embodiment, torque and angle are monitored during tightening. Calculations are conducted, while tightening, to determine the tension prevailing in the bolt at a particular angle of advance. By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fastener is established. From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value. The same technique may also be used merely to monitor tightening which is terminated by a different tightening strategy.

Abstract: An article placement system for applying a plurality of articles to a substrate, each article placed in a different location and perhaps at a different angular orientation on said substrate. The system includes a base with a walking beam mounted to the base which has an axis of bi-directional movement, and a direction of length along the axis. A plurality of article transfer members is mounted to the walking beam at axially spaced-apart locations from one another. Conveyor means extends axially beneath the article transfer means for conveying substrates to positions beneath successive ones of the article transfer means. A plurality of article supply members is mounted to the base. Each has a respective delivery point where it provides an article to a respective one of the article transfer means. Positioning means is provided for locating the article transfer members and the article supply members relative to each other to provide for selectively adjustable placement of the articles.

Abstract: Method and apparatus for attaching a transducer to an object having characteristics to be measured. At least two attachment elements each including a number of pointed members are interconnected by a sensing element. Each attachment element includes a movable wedge member and at least one fixed wedge member whereby initial movement of the movable wedge member with respect to the fixed wedge member subjects said pointed members to a pressure force of a specified magnitude to press the pointed members into the surface of the object. Further movement of the movable wedge member with respect to the fixed wedge member generates a holding force on the pointed members less than the initial pressure force to hold each attachment element in engagement with the object regardless of transverse forces acting on the attachment elements.

Abstract: A fatigue resistant bolt, and method for making same, is disclosed. Bolts which are tightened to very high loads and are subjected to a dynamic environment are particularly subject to fatigue failure. It has been found that a bolt with fatigue resistant properties may be manufactured if its threads are formed while it is subjected to its design load. In another embodiment of the invention it has been found that the fatigue properties of the fillet at the bolt head and shank juncture may be significantly increased if the fillet is cold worked while the bolt is subjected to its design load.

Abstract: The method permits mass-producing axially retained tripod joints having high rigidity and a given prestressing force which is reproducible from one joint to another. According to this method, after having clipped a resiliently yieldable attachment onto a tulip-shaped element of the joint while the joint is in its assembled position, the value of the gap between the shoulder of a thrust member and a bearing surface of a hub carrying the trunnions is determined for the position of the joint in which the hub and tulip-shaped member are in alignment and the thrust member is axially shifted away from the hub and there is introduced in the gap produced between the thrust member and the hub a shim the thickness of which is chosen to be slightly larger than the gap.

Abstract: An apparatus for producing shaped metal objects such as collars for ventillating systems. The apparatus includes drive means for advancing a flat metal sheet past a rotary tool whereby notches are formed along one side of the sheet. The tool is provided with a stabilizing fitting and spring means to insure consistent notch forming. The notched sheet may be collected and formed into a rectangular configuration by other equipment or a removably attached sheet crimping and deflecting mechansim may be mounted in the path of movement of the notched sheet. This mechanism includes crimping rolls, and the deflecting means positioned beyond the crimping rolls operate to turn the sheet into a circular configuration whereby the product of the apparatus is automatically formed into a circular collar.

Abstract: A nut tapper comprises a pusher for pushing blanks onto a rotating tap. The pusher is urged towards the tap by a pneumatic piston and cylinder unit and the speed of approach of the pusher towards the tap is limited by a cam and follower mechanism. The pressure in the piston and cylinder unit can be adjusted to vary the force exerted on a blank by the pusher. The piston and cylinder unit and the cam and follower mechanism are disposed together below the pusher and tap.

Abstract: A method is provided for point rotation sawing of crystalline rod material at off-orientation angles wherein the crystalline rod is encapsulated in a molding media forming a cylindrical geometric encapsulation containing the rod with its crystallographic axis at an angle to the cylindrical axis of encapsulation, the angle coinciding with the off-orientation requirement. The encapsulation cylinder is rotated about its axis and contacted by sawing means at one or more points tangent to the cylinder surface and perpendicular to the cylinder's axis of rotation resulting in the sawing of a thin wafer from a cylinder which is inclusive of an off-orientation crystalline material wafer.