Abstract: A worktable for use in association with machine tools is illustrated which has a section including a side edge of the worktable hingedly connected to the table supporting member whereby the section is tiltable under power to automatically unload a workpiece from the table. The invention is shown in connection with a workpiece gripping and moving carriage which moves the workpiece relative to the machine tool and, after completion of machining, moves the workpiece to a position on the tip table section. Control members prevent actuation of the tip table until after the workpiece gripper has deposited the workpiece on the tip table clear of the machine tool and then withdrawn to a position fully out of contact with the workpiece.

Abstract: A Tap Driver Assembly for use between a spindle that is adapted to provide a coolant and a tap that is adapted to conduct such coolant therethrough, the tap driver assembly including a body in which a nose is slidably guided, a collet clamped by a nut in such nose, a slidable drive connection between the body and the nose which enables relative axial movement while providing an angular drive, spring means acting between the nose and the body so that the feed of the tap could lead or lag the feed of the spindle, and a fluid passage in the body leading from the spindle in bypassing relation to the slidable drive connection, bypassing the spring means, and extending through the nose, axially into the collet to the tap.

Abstract: A machine tool having a tool-supporting hollow spindle has the tool mounted in fixed relation to a draw bar which slides axially within the spindle between a tool retaining position and a tool release position. A barrel cam within the spindle is adapted to be engaged and rotated by a cam driver member secured to an actuating shaft longitudinally movable within the spindle. The spindle rotates with the cam until a predetermined angular position is reached, after which additional longitudinal movement of the actuating shaft causes movement of the draw bar downwardly within the spindle from its tool retaining position to its tool release position, where the tool is resiliently supported until it is removed, either manually or by automatic means.

Abstract: A hydraulic drive circuit for machine tools, such as power shears, press brakes, and the like having hydraulic cylinder reciprocated members, controls fluid flow to and from the hydraulic cylinders to automatically move and hold the member in an idle position, to apply power in the desired direction upon demand, and to bypass fluid for unloading the pump until power is demanded. In power shears and press brakes, the vertically movable ram is automatically raised and held in an out-of-the-way position whenever the manually actuated control is released even after stoppage of the pump.

Abstract: An auxiliary jet sump pump, particularly for use with a main conventional electrical sump pump or the like, as a substitute pump in the event the main pump is inoperative, or as a supplemental pump in the event the capacity of the main pump is exceeded. The auxiliary pump is adapted to be mounted in the sump, and discharges into the discharge pipe of the main pump. The auxiliary pump is powered by water under pressure, for example water from the usual municipal water supply. A float-actuated valve is provided which admits water into the auxiliary pump when the water level in the sump rises to a first predetermined level above normal, and which shuts off the water when the water level reaches a second predetermined level lower than the first predetermined level.

Abstract: An axially fixed, radially limitedly movable stuffing box assembly including mounting means therefor. The stuffing box is adapted to have means for continuously flushing its bushing during operational rotational movements of a shaft functionally engaged therewith. The stuffing box when used in functional combination with a screw of a screw pump which is itself adapted for the pumping of high density fluids greatly reduces the tendency for radial forces generated during pumping to cause shaft deflection and to produce shaft wear and leakage.

Abstract: Elastic tuning, spacing and sealing rings substantially fill annular grooves in a ring shaped inertia mass and face toward and into engagement with the body of supporting disk means extending radially into an annular working chamber defined by the inertia mass, the chamber being substantially filled with a viscous damping medium. Annular retaining flanges along the radially inner sides of the grooves assist in mounting the elastic rings in concentric relation to one another and to the working chamber and protect the rings against intrusion of dirt and contaminants. The grooves are partially unfilled and provide damping medium reservoirs about the radially outer sides of the elastic rings.Several optional configurations and combinations are disclosed to meet practical considerations.

Abstract: A punch holder and stripper assembly is shown in which a punch holding body is provided with a reduced outer diameter boss section projecting therefrom terminating in an end face which has a bore opening thereinto which receives the punch, the punch projecting from the reduced diameter section of the holder and terminating in a punching face. An elastomeric stripper, preferably of a type of urethane rubber, is attached to and carried by the punch holder. The stripper has an inner diameter received around the reduced diameter portion of the holder and extending beyond the holder in radially spaced relationship with the projecting portion of the punch. The stripper either terminates adjacent the punching face or is equipped with an end cap terminating adjacent the punching face.

Abstract: A tool holder includes a shank adapted at one end to hold a tool and to be clamped in a machine tool at its other end. The shank has a portion that provides accurate radial location, and also has means which are adjustable in order to provide accurate axial location. Such axially adjustable locating means include an elongated ramp accompanied by means defining a flat surface encircled by a lock ring which can engage the adjacent end surface of a portion of the machine tool which holds the tool holder. Any force tending to push the tool holder further into the machine tool is resisted by the inability of the lock ring to move up to a higher portion of the ramp. Preferably, there are a plurality of aligned ramps.

Abstract: A Punch and Stripper Assembly for use in a punch press includes a punch with a shoulder at an intermediate portion thereof, a head threaded onto an end of the punch for being engaged by the ram of the press, a compression spring engaging the head, a washer engaging the opposite end of the spring, a retainer acting between the punch shoulder and the washer, and a stripper sleeve for acting between the workpiece and the retainer, whereby the position of the head on the punch provides a preload to maximize spring life, as well as to control the effective height of the assembly with respect to the ram. With this assembly, no special tooling is needed to assemble it. The retainer can be inverted to alter the retractive position of the punch shoulder.

Abstract: A rapid and efficient method for disinfection of waste liquid such as sewage effluent by means of a fluid disinfecting agent, (e.g. ozone or chlorine) in which the disinfecting agent and all of the waste liquid to be treated pass through a turbulent flow zone within a limited period of time. Also disclosed is specific apparatus for carrying out the method.

Abstract: A dual screw-type pump is provided with a means for balancing the resultant dynamic axial thrust on the screw assemblies during operation of the pump. The resultant thrust on each assembly is absorbed in part by a circular piston on the assembly near the rear of the pump and the remainder by a thrust bearing engaged with the assembly near the front of the pump. The longitudinal position of one of the screw assemblies is selectively adjustable relative to the position of the other screw assembly to balance the thrust on the screw assemblies.

Abstract: A machine tool work table having a plurality of work piece supporting roller mechanisms is disclosed in which the roller mechanisms are detachably mounted on the table from an undersurface by means of a support strap having outturned flange ended side walls which project through the work table and rest atop surface portions of the work table openings through which the roller members project.

Abstract: Automobile bumpers formed from rolled sheet steel and each having a cross-sectional profile designed to carry impact loads without additional reinforcements, and which are selectively hardened to withstand impact of a high order of magnitude without damage. At least an area of the bar coextensive along the bar remains unhardened and serves to control and avoid distortion of the hardened areas. In a relatively large shell bumper profile, longitudinal areas near the neutral axis of the profile remain unhardened and there are longitudinal hardened areas at the profile portions farthest from the neutral axis.A method of and means for effecting selective hardening of the bumper face bars are also disclosed.

Abstract: A punching device includes a fixed frame adapted to support punch means in alignment with a ram. An assembly of the punch, a guide and stripping sleeve and a stripping spring is removable as a unit and such assembly includes means by which such assembly is retained together, especially during handling away from the frame of the punching device. To this end, the punch has a radial opening, such as a circumferential groove, in which there is disposed a friction member, such as of plastic, which has an interference fit with the interior of the stripping sleeve.

Abstract: An automatic tool transport mechanism for a machine tool having an operating axis, in which a tool is to be transferred between the operating axis of such a machine and the storage structure, with the tool being supplied to the operating station on such operating axis, or to such a storage structure on a storage axis thereof, at least a portion of which is spaced from such operating axis, and employing a transfer arm adapted to be mounted on a machine tool for movement in a predetermined path from a first position adjacent said operating axis to a second position adjacent said space portion of said storage axis, tool gripping means carried by said arm movable in a second predetermined path operative to correspondingly orient such tool gripping means and a tool carried thereby on either said operating axis when said arm is in said first position, or on said storage axis when said arm is in said second position, means being provided for selectively actuating said gripping means to and from tool-gripping and too

Abstract: A lubricant distributor system including a plurality of piston cylinder lubricant injector units constructed and arranged so that the pistons thereof move in sequence from retracted positions to lubricant displacement positions to expel a given quantity of lubricant from each of the cylinders and then move in sequence from the lubricant displacement positions to the retracted positions, whereby each cylinder except the last is refilled with lubricant from an adjacent cylinder and only the first cylinder discharges lubricant back through a lubricant supply line upon completion of each lubricant cycle.A lubricant injector adapted for sequential operation when used in multiples in a centralized lubrication system.

Abstract: An automatic tool changer mechanism for a machine tool in which the tool is supported in an adapter having a tapered spindle-engaging end and an opposite tool-engaging end, and provided with a generally annular-shaped flange, intermediate its ends, having a generally V-shaped groove in the circumferential face thereof, a plurality of adapters being disposed in a magazine from which they may be selectively withdrawn and transported by means of a suitable transport mechanism to the spindle of the tool machine for use thereat, in which the adapter is supported, both in the magazine and during transport by means of cooperable jaws associated respectively with the transfer mechanism and the magazine, with such jaws being adapted to engage and support the adapter at such flange.

Abstract: A printing plate and saddle are provided for a press roll wherein the printing plate, at each end, has a series of sheer-forms which define slits and indented formations, the slit-edge of the formation being engageable with radial face means on the saddle which are tensioned apart, there being keeper blades or elements overhanging the leading and trailing edges of the plate. Preferably, a blade release member is associated with at least one of the keeper blades to facilitate installation and removal of the plate.

Abstract: An automatic tool transport mechanism for a machine tool having an operating axis, in which a tool is to be transferred between the operating axis of such a machine and the storage structure, with the tool being supplied to the operating station on such operating axis, or to such a storage structure on a storage axis thereof, at least a portion of which is spaced from such operating axis, and employing a transfer arm adapted to be mounted on a machine tool for movement in a predetermined path from a first position adjacent said operating axis to a second position adjacent said space portion of said storage axis, tool gripping means carried by said arm movable in a second predetermined path operative to correspondingly orient such tool gripping means and a tool carried thereby on either said operating axis when said arm is in said first position, or on said storage axis when said arm is in said second position, fluid actuated means, i.e.