Abstract: A mechanism having first means for moving a tool or the like in an up and down direction and second means for moving such device in a fore and aft direction. The mechanism is suitable for a number of different uses and is especially adapted for die bonding operations wherein a die is picked up at one location and transferred to a second location. The mechanism also has means for imparting reciprocatory motion to the device so that, if the device is a die placement tool, the tool can be utilized to provide a scrubbing action for the die on a substrate therebelow.

Abstract: This invention relates to joining a ring to a tube passing through the ring, for example, or for joining two pipes end to end by means of a ring. In one form of the invention the ring is radially compressed during relative rotation of the parts to be joined by a pressure substantially uniformly distributed around the ring to develop frictional heat and to cause penetration of the ring into the tube or aligned pipes. The relative rotation is then stopped and a friction weld is formed.Many variations are possible: for example a rotating internal ring may be expanded by radial pressure and thereby friction welded to a tube or across the junction of two pipes.

Abstract: Method of fabricating a crown plate for a Francis-type hydraulic turbine runner. The crown is fabricated from an integrally formed inner circular portion and a pair of outer semi-circular portions welded thereto. The inner circular portion provides a rigid section of high integrity to which the runner shaft is connected.

Abstract: A method for making a wound musical instrument string having improved tone quality and life involves the winding of a cover wire onto a core wire followed by a thermal conditioning step in which the string is heated to an elevated temperature for a significant period of time.

Abstract: The method comprises the steps of plating at least one surface of the substrate with a metal with the one surface of the substrate to be bonded to a given surface of the metallic carrier, forming a plurality of vent holes in the given surface, tinning the plated one surface and the given surface separately with solder, cleaning the tinned plated one surface and the tinned given surface separately to clean both of the tinned surfaces, applying a flux to both of the cleaned tinned surfaces separately, placing both of the fluxed cleaned tinned surfaces in contact with each other, applying heat and pressure simultaneously to both of the substrate and the carrier until the solder of both of the fluxed cleaned tinned surfaces flows, and cooling both of the substrate and the carrier in a natural manner to room temperature while still applying the pressure to both the substrates to the carrier.

Abstract: A process and product formed therefrom for providing a protective closure for hollow structures that are used in high velocity applications. The protective closure comprises a closure material and a sheath material permanently bond to each other. Both the closure material and the sheath material are "set" in a configuration of the closure. The protective closure is fabricated by having the closure material and the sheath material permanently bonded and "set" to each other by subjecting them to a high energy impulse force.

Abstract: The invention is directed to a removable guard arrangement for a power tool having a rotating head for performing work on a workpiece and includes a guard member and a mounting member which is fixedly attached to the tool for accommodating the guard member thereon. The guard member and the mounting member are configured so as to facilitate the removable bayonet engagement of the members. A locking device is provided for locking the guard member in place on the mounting member.

Abstract: A liquid interface diffusion process is provided where a thin deposit (from 1/2 to 4 mils) of nickel (and/or cobalt) having 4-12 weight percent boron is plated on the nickel or cobalt based alloy faying surfaces. In the case of honeycomb sandwich, the plating is applied to the edge of the core or on the facing sheets and the assembly held together in intimate contact and exposed to a temperature sufficient to cause the Ni-B eutectic to melt. At the eutectic temperature a liquid is formed which makes a metallurgical joint. Upon further time at temperature the boron is diffused into the substrate so that isothermal solidification occurs and the boron is diluted to a small concentration. Sufficient time is allowed (on the order of one or more hours) so that the melting point at the joint area is essentially the same as the substrate and the joint is comparable to a diffusion bond.

Abstract: A control apparatus for a sand blasting nozzle is shown having means to induce a suction in the sand delivery conduit associated with the nozzle. A sliding valve structure for controlling the induced vacuum in the sand delivery conduit is provided along with a valve for controlling flow of the fluid medium for impelling the sand. The system makes use of high velocity air or steam or high pressure water or similar fluid for inducing the required suction in the sand delivery line and for driving the sand against the object to be blasted. Handle means form part of the apparatus to control the direction of the stream of abrasive and carrier fluid blasted from the nozzle portion of the assembly.

Abstract: This invention relates to a polishing device which may polish the surface of a hard body such as metal, rock, glass or hard plastics into a perfect spherical shape. Each polishing device may also be applied for the mass-production of lenses, concave and convex. The polishing device comprises three identical polishing dishes mounted on the front ends of three rotating shafts which are positioned on three lines radiating from one point on a plane with an angular interval of 120.degree., respectively. Said polishing dish has a concave polishing surface and the three polishing dishes are adapted to support a body to be polished at the center of the device and to rotate in contact with the body. Therefore, it may be polished into a perfectly spherical shape.

Abstract: The razor blade sharpener comprises a flexible tube of such length as to accommodate the handle of a razor blade supporting element having one end of the tube adapted to frictionally engage a water outlet faucet, the opposite end of the tube being provided with a flexible band positioned diametrically across the end of the tube for supporting a razor blade supporting element adjacent the opposite end of the tube, allowing water from the faucet to flow through the tube and over the edge of the razor blade which is being held in position by the razor blade support.

Abstract: Used foundry sand which is predominantly in the form of lumps containing a binder for the sand particles is regenerated. In the course of the regeneration, the lumps are comminuted and, simultaneously therewith, an at least partial separation of the sand and the binder is effected. The simultaneous comminution and separation is effected by a dry, mechanical procedure during which the lumps are subjected to an abrasive or scouring action. This is accomplished by means of a pair of vibrating or rotating brush-like members provided with steel bristles. These members are located adjacent the bottom of a trough-shaped strainer which permits the passage of sand particles having a size less than a predetermined size. A cover is provided for the strainer and serves to cause rebounding of particles which impinge upon it. A feed hopper feeds the lumps of used foundry sand to the brush-like members and a bar overlying the gap between the latter prevents entry of the lumps into the gap.

Abstract: A material reducer for coal, lignite, ore, stone, rock, oil shale and the like which employs rotary hammers, bars or the like not only to crush the material but also to propel the crushed material upwardly along a confined or partially confined path which discharges for example onto an output conveyor or directly to a screen or other processing equipment. The feed-in or input end of the crusher can be at a level sufficiently low to be supplied by the newer more mobile loading units such as front-end loaders, over-the-head loaders, and others. The center of gravity can also be substantially lowered, providing more stability without the normal cumbersome frame and support structure.

Abstract: The buffing machine of the present invention includes one or more buffing wheels to which workpieces are successively presented on a continuously traveling conveyor wherein the workpieces are rotatably mounted. The axis of workpiece rotation is adjustable to any angle desired relative to the conveyor travel and the axis of a buffing wheel. The angle the axis of rotation of the workpiece makes with the buff wheel axis is selected so that rotation of the buffing wheel imparts a desired speed of rotation of the workpiece.

Abstract: A sanding plate is mounted in a housing with freedom of gyratory motion, and a rotatable eccentric shaft is journalled in the housing and connected with the plate for imparting the motion to the latter. A pneumatically powered rotary piston engine is mounted in the housing and connected with the shaft for rotating the same. The rotary piston of this engine has an imbalance which compensates for the imbalance resulting from the motion of the plate.

Abstract: Finishing sharpener including a handle having a pair of wings extending therefrom and each wing being in the form of a flat bar defining a sharpening edge that is arcuate in cross section and smooth. The method of using the sharpener is concerned with the proper positioning of a knife blade relative the wings and a proper engagement between the knife edge and the sharpening edges of the wings.

Abstract: A contour grinder having a grinding wheel that forms a workpiece into a desired contour by directly controlling the movement of the grinding wheel with a motor operated by numerical control. The grinding wheel has an arched shaped surface on the periphery thereof. The grinder also includes a vertical shaft about which the grinding wheel is rotatable and a support arm which carries a horizontal shaft to which the grinding wheel is fixed. The support arm is rotatably connected to a portion of the vertical shaft and connects the horizontal shaft at a right angle thereto so that the center of the arched surface on the periphery of the grinding wheel is aligned with the center of the vertical shaft. The vertical shaft is rotatable about its axis and movable longitudinally and laterally and the grinding wheel is movable with the vertical shaft.

Abstract: A grinding machine for grinding surfaces of workpieces supported on a frame comprises a first slide mounted on the frame for reciprocating movements along a fixed length path toward and away from the workpieces, the first slide supporting a second slide which carries grinding wheels. The second slide is adjustably mounted on the first slide for movements with the latter so as to effect movement of the grinding wheels into and out of engagement with the workpieces and for movements relative to the frst slide so as to compensate for erosion of the grinding wheels caused by grinding or dressing operations. The machine includes dressing tools for the grinding wheels and which are operable in timed relation to the reciprocating movements of the slides to effect dressing of the grinding wheels.

Abstract: The blades of a rotary blasting machine are removably mounted on a rotor bracket in a spaced relationship with the bracket outwardly from a point of contact at the inner extremity of the blade-bracket junction. Preferably, the space diverges outwardly, and an inner portion of the blade hooks over the bracket to resist centrifugal force acting on the blade, and also seal the junction against ingress of abrasive particles.

Abstract: A generally rectangular three dimensional body is provided constructed of two superimposed layers of abrasive material. The layers of abrasive material have different abrasive properties and the body is provided with three parallel bores extending through the two layers of the body and spaced longitudinally therealong. The bores are approximately 1/8 inch, 7/8 inch and 3/4 inch in diameter and the opposite ends of the bores open through parallel planar remote surfaces of the two layers of the body and are provided with inwardly tapering conical counterbores. The body of abrasive material may therefore be utilized to sharpen the beveled ends of cylindrical cutting members such as dehorners utilized to dehorn calves at branding time.