Abstract: A quick detach bit apparatus includes a wear sleeve having a chuck threaded thereinto. A bit is mounted within the chuck. The bit and chuck are interconnected by mating, axially extending splines and grooves. The chuck includes a resiliently mounted segment urged into engagement with the bit. A quick release tool is accommodated in a passage between the bit and chuck. The tool is inserted into the passage and has a thickness sufficient to urge the segment out of engagement with the bit so that the bit is removed from the chuck.

Abstract: To join a part having a threaded shaft protruding therefrom with a second part having a bore sized to receive the shaft and an intersecting cavity, a housing is provided which rotatably receives a nut. The nut has a circumferentially extending external gear surface and the housing has two nut actuator receptors communicating with its interior at this gear surface of the nut. The housing with nut is received within the cavity of the second part and the shaft of the first part is inserted into the bore in the second part till the shaft abuts the nut. A nut actuator inserted into one of the nut actuator receptors may then be rotated to thread the shaft into the nut and draw the two parts into abutment.

Abstract: A coupling device for connecting a work tool to a support that provides a quick disconnect for electrical and fluid connections and is characterized by the use of two separable members which can be locked together through a ball cage and lock ring arrangement.

Abstract: In an arrangement for detachable fastening of an end of an elongated member, particularly an end of a foot loop band, in a hole having an undercut, particularly in a sailing borrd, it is suggested that at the end of the elongated member there is a pawl of deformable material which is to be pressed against spring action to the end section of the elongated member leading to the end. During insertion of the end section into the hole, the pawl engages with its end face behind the undercut and thus is secured in the hole.

Abstract: A locking pipe sub is disclosed including a threaded pin connection for engaging, for example, a pipe stuck in a well bore. The threads on the pin are formed in two sections which are adapted to align upon initial make-up of the sub to the stuck pipe, but to misalign, both axially and radially, when reverse torque is applied to the sub. The result is to create axial and radial forces between the threads of the sub and the threads of the stuck pipe which positively lock the sub against disconnection from the pipe except with the use of a releasing tool.

Abstract: A transmitter cylinder is used in a hydraulic system and particularly the ake system of an automotive vehicle. To prevent undesired access into the transmitter cylinder, a lock part is installed at the pedal facing end of the cylinder. The lock part is an annulus. The pedal connected piston extends through the lock part and into the transmitter cylinder. The annular lock part is shaped so that its inner bore will guide and center the piston projecting into the cylinder. A locking element for holding the lock part in the cylinder bore is defined. It is either a radial projection from the lock part or it is a retaining ring held in a groove on the exterior of the lock part. In either case, the locking element projects into a groove defined in the interior of the cylinder bore, which retains the lock part in the cylinder bore against undesired extraction. The lock part may be a hollow annulus or a solid body. The lock part is appropriately configured to permit its extraction with appropriate tools.

Abstract: A method of attaching a metal shaft (10) to a ceramic shaft (12) having a first diameter (d.sub.1) is characterized by the following steps. A shaft portion (16) is formed on the ceramic shaft with a second diameter (d.sub.2) less than the first diameter. The shaft portion extends from a free end (18) thereof along a portion of the length of the ceramic shaft to a terminal end (20) thereof. A circular shaped metal lock nut (22) is placed on the shaft portion in an encircling relationship therewith. This lock nut has threads (24) on an outer facing surface thereof and a back end (26) which contacts the terminal end of the shaft portion. A circular shaped expansion sleeve (28) is placed on the shaft portion in an encircling relationship therewith, the expansion sleeve extending from the metal lock nut to the free end of the shaft portion.

Abstract: The invention relate to fixing a plug in the end of a bar, the assembly being used for production of cylindrical hollow blanks which will be later rolled.The device comprises a plug including at its rear end a shank which can be introduced into an axial socket provided at one end of the bar. A locking means can be introduced transversely through a hole in the wall of the bar and engage its end within a groove realized around the shank. A retaining means holds the locking means in position.The device is used for rapid mounting and dismantling the plug and bar assembly.

Abstract: A boat railing is disclosed wherein the stanchions are connected to the rail by a threaded member internally threaded into both the rail and each respective stanchion. An insert adapted for connection to the threaded member can be movably inserted within the rail to provide adjustable movement about the axis of the rail. A combination of the rotative movements of each stanchion on the threaded member and about the axis of the rail enables the bases of the stanchions to be properly fitted to the surface of the boat irrespective of the slope of the surface to which the base is to be attached.

Abstract: A display case with a locking mechanism for securing display case components together comprising a first member including hook means, a second frame member including hook means adapted to interlock with the first member's hook means, and means for biasing the second member's hook means into engagement with the first member's hook means, so the first member's and the second member's hook means interlock.

Abstract: A fitting for detachably securing two vertically abutting bodies of furniture to be connected to each other in their respective regions of contact. One of the two furniture bodies has attached thereto a projecting fastener bolt having a fastening head. The other piece of furniture is provided with a generally cup-shaped enclosure or casing in a cavity to accommodate a rotatably mounted tensioning member. The head of the fastener bolt is in operative connection with the tensioning member and is adapted to be drawn into the casing when the tensioning member is rotated.

Abstract: A structural joint for a space frame having connecting members or nodes and tubular structural member is provided in which the shank of a connecting bolt, whose head is located within the hollow end portion of the tube, extends through an aperture in the tube end for engagement with a threaded opening in the node. The tube shank has a longitudinally extending keyway formed therein in which a key is slidably received. A nut or sleeve having an unthreaded inner bore receives the bolt shank and has an internal keyway which receives a portion of the key to rotatably lock the nut and bolt together so that the nut may be rotated to rotate the bolt and engage its shank in the threaded opening of the connecting member.

Abstract: A spring steel connector for extruded metal lengths such as picture frame members has, in addition to locking tines, a tine projecting in the opposite direction to permit release of the connector.

Abstract: A plug including an axial shaft, a mating end of which is spring coupled to a mating portion of a sealing plug. The other end of the shaft includes an externally threaded portion and a flanged portion. The sealing plug also includes an externally threaded portion and a flanged portion. The spring normally mates the shaft and sealing plug together so that the members are rotationally engaged. When the spring is suitably compressed, the mating relationship is removed so that the members are rotationally disengaged. The plug is particularly useful in conveniently sealing double wall combustors such as those in gas turbine engines.

Abstract: A device for fastening a pair of structural pieces in face to face relationship which has a pair of conical socket members adapted to be secured to each of the pieces and opening out of respective faces thereof for rotatably accepting opposite end portions of a dowel which has a pair of diametrically opposed longitudinally extending flat portions terminating in abutement faces which are engaged by free ends of a spring leaf detent outer ends of which are secured to the socket members near the open ends thereof, the dowel having a notched central flange which can be gripped by a tool extended between the pieces for rotating the dowel so as to move the abutment faces out of and into registration with the detents.

Abstract: A device for joining the frames of structural units which are structural units having undercut grooves. The device is provided engages itself in these grooves, and is preferably in the form of a spindle consisting of two parts which rotate with respect to each other on a common threaded shaft or axis. By rotating the defice each of the two parts anchors itself firmly into the undercut grooves in the frames which may be metal sections thus holding the frames together.

Abstract: The invention disclosed is a safety lock for a removable shaft which has special utility when disposed on a clevis or like device. The lockable shaft is disposed by means which readily permit free lateral movement while preventing accidental disengagement under load bearing conditions when in the locked position. In an embodiment, shaft removal from a cooperating support member is prevented by a shaft restrictive means. Thus, complete removal of the shaft from support members during load transfer is avoided.

Abstract: A high strength positive locking fastener for securing structural panels together is disclosed. The fastener includes a stud receptacle and a stud assembly. The stud receptacle is mounted on an inner panel spatially fixed with respect to an outer panel and includes an interiorly threaded basket nut with assembled washer fixedly mounted thereon and a cage which is fastened to the inner panel and which movably receives the basket nut and washer assembly. The stud assembly passes through substantially coaxial openings in the panels and then into the basket nut assembly. The stud assembly includes a threaded stud having a bore therethrough containing a spring loaded plunger with a pair of locking balls resting thereon. To engage the fastener and secure the panels together a tool is used to depress the plunger forcing the balls against a reduced plunger diameter and allowing the stud to pass through the panel openings and into the basket nut.

Abstract: Bolt device for connecting a first component formed with a hole extending therethrough to a second component which is formed with a recess threaded to receive the bolt. The hole has three portions, namely a first shallow portion of large diameter which is an undercut of the end wall of the first component, a second shallow portion eccentric to the first shallow portion, the first component having a lateral groove connecting with the shallow portions, and an elongated recess portion having a smaller diameter than that of the first shallow portion and being coaxial to the first shallow portion. A cup-shaped member surrounds the head of the bolt to prevent rotation of the bolt, and has a disc-shaped base receivable in the undercut and a projection receivable in the lateral groove to prevent rotation of the cup and the bolt relative to the threaded component.

Abstract: A locking device for releasably fastening parts to rotors of fluid flow machines, the base portions of the parts to be secured fitting in a form-locking manner in at least approximately axially extending fixing slots provided at the circumference of the rotor, the locking device including fixing elements which can be inserted into depression means extending transversely with respect to the axially extending fixing slots and provided in the rotor and into recesses provided in the base portions of the parts to be secured. The depression means are provided at the region of the axially extending fixing slots and divide the flanks of each such axially extending fixing slot into approximately equal parts and the recesses provided in the base portions of the parts to be secured in the assembled condition of such parts coincide with the depression means.

Abstract: A male member is connected to a female member by providing a rolling location element between a wall of the male member and a relatively inclined cooperative wall of the female member and biasing the location element into a position in which, should any attempt be made to remove the male member from the bore of the female member, a wedging action is obtained which prevents removal of the male member.

Abstract: The invention relates to a shaft coupling assembly wherein two shafts are rotationally located with respect of each other by means of splines provided upon the two shafts. The shafts are located axially by the provision of a further member being provided with similar splines, the third member being adapted to be rotated such that its splines may be brought out of engagement with the other splines to lock them together axially. The third member is rotated by means of a bevel gear arrangement which are rotated by means of an adjusting tool. The arrangement is such that the adjusting tool may only be removed when the third member is in the locked position.