Abstract: A system for producing a first and second series of blind fasteners each in uniformly varying grip increments for securing workpieces varying in total thickness, each blind fastener comprising a tubular sleeve, a pin and lock collar, the sleeve adapted to be located in aligned openings in the workpieces with the fastener adapted to secure the plurality of workpieces together by means of a relative axial force applied between the pin and the sleeve, the sleeve having a relatively straight sleeve shank terminating at one end in an enlarged sleeve head, the first series sleeve heads being of the flush head type and the second series sleeve heads being of the protruding head type having a generally streamlined low profile configuration, each of the first series of sleeves being related to each of said second series of sleeves of the next largest grip increment such that the overall lengths of the first series of said sleeves and the related ones of the second series of sleeves are substantially the same, the pins

Abstract: A tumbling media element for use in tumbling non-magnetic workpieces includes a body portion formed of a non-magnetic material and a magnetic insert disposed within the body portion. The insert renders the body portion suitable for magnetic sorting techniques and may increase the total mass of the media element thereby generating greater kinetic energy during tumbling operations.

Abstract: The invention is a weld metal for welding of a titanium alloy member to a ferrous based alloy member as an intermediate transition zone between such members so as to overcome the metallurgical imcompatability of each such member, and which consists of a vanadium metal, titanium and iron and inconsequential amounts of brittle intermetallic compounds. The preferred weld metal is vanadium rich and contains no more than 50% combined weight of titanium and such a weld metal is produced in accordance with our invention by fusion welding, particularly capacitor discharge welding, which because of its inherent but heretofore unrecognized extremely fast quench or freeze rates will produce a fusion weld between these two metallurgically incompatible alloys which is free of brittle intermetallic compounds. It is also part of our invention that such a weld metal of the aforesaid composition will have independent use as a welding alloy, particularly when fabricated in sheet form.

Abstract: A fastener system for securing workpieces together including a blind fastener located in aligned bores and when installed providing a preselected interference fit with the bores, the fastener including a pin and a sleeve with the pin having a shank with a sizing portion and expansion portion, the sleeve having a shank portion adapted to be pre-assembled onto the sizing portion and, while pre-assembled, having its outer surface reduced in diameter to a preselected magnitude such as to provide the desired interference with the bores when the expansion portion is moved therethrough.

Abstract: A blind fastener including a pin and a sleeve and having grip compensating means for accommodating workpieces varying in total thickness and having means for expanding the sleeve for filling the clearance between the fastener and associated openings in the workpieces and at the same time providing material from the sleeve in the area of expansion to define a lock between the pin and the sleeve.

Abstract: A hand tool for setting multipieced fasteners such as lock bolts by application of a relative axial force and being fluid actuated by a piston-cylinder actuable along a first axis and having a removable cartridge type nose assembly for applying the axial setting force to the fastener along a second axis radially offset from the first axis such that the area immediately behind the nose assembly is essentially open and with the tool having a handle to be gripped by the operator and with a portion of the tool including the nose assembly being selectively rotatable about the first axis to facilitate use of the tool in various installation situations.

Abstract: A fastener for securing workpieces having aligned bores and including a tubular sleeve and a pin with the sleeve having an elongated sleeve shank and a through bore and the pin having an enlarged pin head and an elongated pin shank, the pin shank having a retaining groove and a lock groove located proximate thereto, a resilient retaining clip located in the retaining groove and being axially captured therein, the retaining clip being of a split construction and having a relaxed outside diameter greater than that of the workpiece bores and being adapted to be located in at least one of the bores with an interference fit to thereby axially retain the pin to the workpieces in a preassembly, the sleeve shank having a sleeve lock groove adapted to be radially deformed into an aligned lock groove in the pin, the sleeve shank having a grip adjusting groove adapted to deform radially whereby the fastener can accommodate workpieces varying in total thickness.

Abstract: A fastener for securing workpieces having aligned bores and including a tubular sleeve and a pin with the sleeve having an elongated sleeve shank and a through bore and the pin having an enlarged pin head and an elongated pin shank, the pin shank having a locking groove, a resilient retaining clip located in the locking groove and being axially captured therein, the retaining clip being of a split construction and having a relaxed outside diameter greater than that of the workpiece bores and being adapted to be located in at least one of the bores with an interference fit to thereby axially retain the pin to the workpieces in a pre-assembly, the retaining clip and pin lock groove defining a lock cavity, the sleeve shank having its free end adapted to be radially deformed into the lock cavity, the sleeve shank being adapted to buckle radially after the sleeve free end is deformed into the lock cavity whereby the fastener can accommodate workpieces varying in total thickness.

Abstract: A portable blind fastener installation tool having an installation section actuable for setting the blind fastener and a fastener loading section for automatically front, loading the fastener into the installation section and a piston-valve section for reciprocating the installation section away from and back to its fastener setting position after a fastener has been set to permit the fastener loading section to be moved to a position in front of the installation section while it is away from its fastener setting position whereby the next fastener will be front loaded into the installation section on its movement back to its fastener setting position.

Abstract: A tool for setting a fastener which includes a pin having a plurality of grooves adapted to be gripped by a plurality of jaws in a nose assembly of the tool with the jaws being resiliently held in flexible pockets in a manner maintaining the jaws in a desired axial and radial alignment with each other and with the fastener grooves and with the jaws being selectively movable into and out of the pockets whereby manual insertion and replacement is facilitated.

Abstract: An improved pneumatic-hydraulic actuated single action pull type installation tool for installing pull type fasteners is disclosed which includes a continuously pressurized fluid reservoir operative to maintain a minimum positive pressure on the hydraulic circuit during operation so as to protect the integrity of the hydraulic circuit during normal operating pressure fluctuations and to reduce the possibility of air being drawn into the hydraulic system during sudden pressure drops in the actuating pressure chamber which may occur at the time the pintail portion is separated from the fastener. Further, the reservoir provides a source of make up hydraulic fluid to replace any fluid which may be lost due to leakage. Suitable valves are provided to enable the reservoir to selectively communicate with both driving and return portions of the hydraulic circuit while still enabling selective pressurization thereof.

Abstract: An installation tool, for setting fasteners by applying a relative axial pulling force via a nose assembly to the fastener, and having a pneumatic means operable from a low pressure to provide a high pressure to a hydraulic means via an intensifier means, with the pneumatic means being constructed of a molded lightweight plastic having the pneumatic circuits molded therein, and with the hydraulic means constructed of a different material, and including hydraulic surge dampener means and a generally, open in line hydraulic circuit, and having a removable wiper housing facilitating the use of different nose assemblies.

Abstract: A fastener tester for testing fasteners for securing a plurality of workpieces together with such fasteners including a pin member having an elongated shank with the fastener tester including a pair of relatively movable members adapted to have a fastener installed thereto and operatively associated with a load cell whereby installation loads and final clamp load or preload can be measured and subsequently the same fastener can be subjected to a tensile test and the resultant tensile loads measured.

Abstract: This disclosure relates to swage type fasteners including a pin having a plurality of combination locking and breakneck grooves and a collar adapted to be swaged into the grooves with one of the grooves acting as a breakneck whereby the excess length of pin is severed generally at the end of the collar and also relates to a method of making the pin. The multigrip pin is formed generally into its final shape and then is subject to a heat treating process to provide a desirable microstructure whereby more consistent breaks at the selected groove occurs. In one form of the invention a desirable microstructure consists of predominantly pearlite colonies with a proeutectoid ferrite matrix interspersed at the boundaries of pearlite colonies.

Abstract: A method and apparatus for forming a hollow sleeve for a blind fastener including the steps of forming a sleeve blank to have an enlarged sleeve head and a through bore having a radially inwardly extending shoulder forming portion, deforming the material on the shoulder forming portion to move axially toward the sleeve head and radially inwardly from the reduced diameter bore portion and substantially deforming the material away from the sleeve head and back towards the contour of the reduced diameter bore portion to form a sleeve stop shoulder.

Abstract: An optimized two piece fastener system and a related method for providing an optimized fastening system including a pin member and a collar having an optimized strength to weight ratio with the materials of the pin member and collar having a predetermined tensile strength ratio, the collar having a preselected excess volume to provide a desired `overpacking` condition, the collar being of size whereby after swage it will define a minimum wall thickness whereby failure can incipiently occur in shear and/or compression and with a pull type fastener providing a breakneck groove with a preselected stress concentration factor whereby the fastener system can be set on workpieces having a collar engaging surface from 0.degree. to 7.degree. relative to a plane normal to the pin axis.

Abstract: A unique two-part fastener consisting of a pin and a tubular member adapted to be set by a tool having a set of jaws to grip the pin and a swaging anvil for swaging the collr onto the pin and in which the pin has a set of substantially identical annular grooves formed along a major portion thereof and in which the set of annular grooves provide combination grooves some of which function as locking grooves and a selected one which functions as a breakneck groove and in one form the fastener including a second set of grooves of a different construction which function only as pull grooves; the first set of grooves provide a unique relationship with a swaged portion of the tubular member so that as the fastener is set, the pin will break off in a preselected one of the combination grooves within the outer end of the tubular member; the second set of grooves provide a construction which is compatible with a known type jaw structure on the tool.

Abstract: A lock spindle blind fastener to be set with a single action tool where the fastener includes a pin or mandrel, a sleeve and a locking collar; the sleeve has an enlarged head which has a straight counterbore for the initial reception and guiding of the locking collar with the counterbore communicating with a bore portion having an entrant resistance angle for reception of the collar during setting. The entrant resistance angle is selected to be of a magnitude to provide hold-off of the locking collar. The strength of the mandrel and other characteristics of fastener components are related to the force required to deform the locking collar along the entrant resistance angle such that a high strength blind fastener is provided which can be set by a single action tool.

Abstract: A blind fastener is disclosed which comprises a sleeve and pin of a selected metal in which the pin is designed to form a blind head over a wide range of grips which offers substantially uniform tensile values over the entire grip range. The blind head forming end of the pin includes a plurality of spaced annular or helical ribs formed between spaced annular or helical grooves which are designed to progressively distort or fold as the pin is pulled through the sleeve, at least one of the ribs remaining in an unfolded condition after the fastener is set. The pin shank and internal opening of the sleeve may be provided with complementary tapers to provide a sealing effect if desired.

Abstract: A tool for setting fasteners in which the fasteners comprise a pin member each having a plurality of grooves adapted to be gripped by a plurality of jaws in a nose assembly of the tool with the jaws being connected to a resilient member in a manner maintaining the jaws in a desired axial and radial alignment with each other and with the tool and selected fasteners defining a fastening system.