Abstract: A hydropunch comprises a cylinder, with one end thereof facing the working surface of a die intended for positioning thereon a workpiece to be treated. Accommodated inside the cylinder and forming an above-the-ram chamber and a below-the-ram chamber is a ram which is actuated by means of a suitable actuator mounted on that end of the cylinder which is opposite to the aforementioned end thereof, the ram being connected with a system for returning the ram to its original position. In addition, the hydropunch includes a compressed gas receiver communicating with the above-the-ram chamber of the cylinder, and a cover adapted for closing both the cylinder and receiver. In accordance with the invention, the system for returning the ram to its original position comprises a closed chamber communicating with the below-the-ram chamber of the cylinder, and a value intended for communicating the above-the-ram chamber with the atmosphere.

Abstract: A riveter comprises a turnable jaw case is disclosed. A jaw case tubular housing (170) is turnably supported by the forward end portion of the frame main body (101,) and lockable in a plurality of positions angularly spaced from each other. The orientation of the jaw case housing is easily changeable in accordance with the shape of the work to be riveted or with other conditions, so that rivets are settable very efficiently with only one riveter for any work irrespective of its shape.

Abstract: A power press in which low inertia motors with speed control circuitry are connected to a cam which acts upon a lever or cam follower which, in turn, cooperates with a force-storing element which has a spring action and is coupled, e.g. by the same lever, to the tool of the press. Accordingly, in the rotation of the cam, the force-storing means stores potential energy which is transformed into kinetic energy of the ram in another region of the cam at which part of the energy can be delivered to the low inertia motors. Hence the speed control of the motor will, in part, regulate the rate at which the stored force is delivered to the workpiece.

Abstract: A pilot assembly as for locating a workpiece in successive forming stages of a machine, such as a punch press, where the workpiece is progressively moved through the forming stages of the machine. The pilot assembly includes a pilot pin mounted to a movable die member of the machine for guiding entry into a previously formed hole in a workpiece or in a companion die member as the die members are moved toward each other, the pin being axially retractable in its mounting in the event it strikes an obstruction.

Abstract: A hydraulic force-delivering hand tool, such as a cable crimper, comprising a body with a large axial bore at one end forming a cylinder. A piston is slidable in the cylinder and has a nodular mass at the outer end to drive against a member to be crimped. A plunger pumps a quantity of fluid past a transfer one-way check valve and into the cylinder, to drive the piston forward a small increment each stroke. When the piston passes through its full predetermined stroke to effect a complete crimp, interengaging means on the transfer check valve and on the piston, lift the transfer check valve from its seat to prevent further travel and to relieve fluid back to the transfer chamber. A button may then be pressed to unseat a relief check valve, to relieve the cylinder to the reservoir.

Abstract: A force multiplier for a punch press which is sufficiently compact as to be placed in the normal throat opening of such press and yet enables the press to increase its working force by one and one-half to three times. The multiplier has a platen having a large diameter piston on its upper surface which piston has a sleeve on its upper surface, the outer surface of which is in engagement with a cylindrical wall in an upper base plate and the inner surface of which forms a cylinder wall for a second piston of smaller diameter which is engaged by the platen of the punch press.

Abstract: An improved press brake plate lifter comprising a pneumatically operated support surface or table wherein the angle of the support surface can be accurately pre-adjusted to match the angle of the die. The pre-adjusted support surface is rotatably lifted simultaneously with the movement of the ram to preclude any back bending of the plate being formed.

Abstract: For producing steel pipe from thick steel plate, a foreign member is arranged on a die at the center of its caliber in the length thereof such that the member meets the edge groove of the steel, and in such a condition O-ing is carried out thereon, thereby to produce a thick welded pipe having very little the peaking amount.

Abstract: A three part die forms a metal clip into a fixed diameter, circular configuration about a workpiece. The die is comprised of three separate die members which move radially toward and away from a fixed center point that defines the center of a first circle. A die engaging groove or channel is defined in the surface of each die member for cooperation with the metal clip. When the die is closed, the die channel defines a second circle which is concentric to the first circle.

Abstract: A hydraulically operated crimping tool (1) for attaching an electrical connector to an electrical conductor, consisting of a hydraulic oil reservoir (27), which is connected to a pump unit (26) which when operated will pump oil under pressure into an enclosed space (25), into which is introduced a pin (1k), said pin being so arranged as to move out of the space as pressure is applied. Upon the initial activation of the pump unit (26) oil is pumped into a small space (24) of small area and volume, where a small quantity of oil will produce large movement of the pin (1k). This movement will then cause a second enclosed space (25) of greater area and of greater volume to be filled with oil. As resistance begins to occur to the movement of the pin (1k) the pump unit (26) will pump the quantity of oil to the second enclosed space (25) of greater area.

Abstract: Apparatus and method are disclosed for removing or inserting a bushing or bearing. The apparatus of the present invention includes an elongated bushing or bearing drive shaft; an adjustable sized mandrel which includes a plurality of bushing or bearing drive shoulders; a mandrel spreader for adjusting the mandrel drive shoulders to a predetermined dimension; and a depth stop sleeve adjustably mounted on the elongated drive shaft for determining the depth to which the bushing or bearing can be inserted in any given device. The depth stop sleeve is used only for insertion and not for removal.

Abstract: Disclosed herein is a powdered metal casing and an apparatus and method for making the powdered metal casing, which casing is useful for shaped explosive charges for perforating oil and gas wells.

Abstract: A pair of arms having mounting pads affixed at one end of each arm, is mounted to a press brake bed. Gauge support members are guidingly received on the arms to support a gauge bar or other gauge mounting surface for workpiece locating stops. The gauge is to be moved and maintained with the gauging edge parallel to the press brake mounting faces of the pads, and thereby, parallel to the tooling of the press brake. One of the gauge support members is driven by a motor and drive screw, and connected through flexible non-extensible tensile members to drive the other gauge support in synchronism, and thereby position the two gauge support members simultaneously and at equal distances from the press brake tooling.

Abstract: A compression tool for compressing a generally tubular workpiece, comprises a tool head having an open, workpiece-receiving end. A plurality of generally parallel, spaced apart movable compressing members are carried by the tool head. A stationary compression surface also carried by the tool head opposingly faces the movable compressing members. Guides are provided in the tool head for slidably mounting the movable compressing members. A ram drives the movable compressing members towards their respective maximum compressed positions, which are defined by the ram and a ram-carrying channel. This maximum compressed position generally increases in a predetermined sequence from the workpiece-receiving end of the tool head toward an interior portion of the tool head.

Abstract: A leaf spring stress peening apparatus is composed of a first conveyor capable of transporting a plurality of leaf springs in an unstressed position. A second endless conveyor is provided to transport a plurality of leaf spring deflecting elements. The first and second conveyors are positioned so that the leaf springs on the first conveyor are deflected by the elements on the second conveyor in a shot peening area. A blast wheel is located in the shot peening area and is positioned to concentrate shot peening material on the side of the deflected spring which is in tension. The deflecting elements disengage the spring as it leaves the shot peening area.

Abstract: A lathekin for use in stain glass window construction and the like has a handle with a blade attached to one end. The blade has a main convex edge which is doubly beveled. Spaced along the edge are two pairs of transverse projections. The transverse projections each have a tapered leading edge and a tapered trailing edge on either side of a peak. The peak extends from the edge of the blade inwardly to at least the depth of the channel of the came used in stained glass panel construction. The blade has a trailing edge which is also doubly beveled and which extends from a substantially normal intersection with the main blade edge to form a concave curve with the handle. On the opposite side of the handle is a concave upper edge which intersects with the main blade edge to form a point. A second blade is transversely mounted on the opposite end of the handle.

Abstract: Methods of installing bulletproof front and/or rear windshields of an armored automobile are disclosed. A first method involves rebuilding the window frame of the automobile, installing the bulletproof windshield, then recontouring the surface of the automobile adjacent the rebuilt window frame so the automobile again appears to an observer to be an ordinary automobile. A second method involves removing the standard windshields from an ordinary automobile, refitting the automobile with a mechanism having a lip of sufficient depth to retain a bulletproof windshield, inserting a bulletproof windshield and subsequently restoring the outer surface of the automobile adjacent the window frame to the profile of an ordinary automobile.

Abstract: This dimension indicator for sheet-metal folding, bending or shearing machine tools comprises a measuring apparatus capable of displaying the distance from the adjustable stop member provided for positioning the workpiece to a reference plane. The device comprises structure for correcting the consequence of a displacement of the reference plane, in the form of a mechanical device coupled to the machine adjustment member and adapted to act directly or indirectly upon one of the component elements of a coupling or a data transmission disposed between the member controlling the stop member and the measuring apparatus, so as to actuate this apparatus.

Abstract: A press for forming complementary parts including mold parts and metal stampings having an articulating frame is disclosed. The press of the present invention comprises a first bolster plate and a second bolster plate which in a first position are spaced apart in a parallel opposed manner. The frame may be articulated from the first position to a second position wherein the bolster plates are in a non parallel, non opposed arrangement. The frame comprises a first pair of spaced apart frame supports pivotally connected at their ends to the first and second bolster plates, and a second pair of spaced apart frame supports having a length less than the first pair of frame supports pivotally connected at their ends to the first and second bolster plates in a spaced apart manner.

Abstract: A beam-type transfer mechanism for moving workpieces step by step along a row of stations through the dies of a press to progressively form a blank into a finished part. A pair of laterally spaced beams extend parallel to the row of stations, having opposed work holding fixtures cooperable to grip the workpiece. The beams are movable in operation laterally toward and away from each other, vertically up and down, and longitudinally, to simultaneously advance the workpieces one step at a time from station to station. The dies would ordinarily be removable and replaceable through the front of the press except for one of the beams which occupies and obstructing position throughout its entire operative movement. Means are provided to lift the beams sufficiently to enable the removal and replacement of the dies through the front of the press without obstruction.