Abstract: An impact tool includes a rotational energy device mounted within the housing of the tool. A driver is reciprocally mounted within the housing and is coupled to the energy device by a toggle member. The toggle member includes a clutch and is actuated to transfer energy from the energy device to the driver. The driver and toggle are driven through a power stroke upon engagement of the clutch with the energy device. Upon completion of the power stroke, the clutch engages a bumper removing the clutch from the energy device and the toggle and driver are returned by a return assembly driven by the energy device.A second embodiment of the tool includes a wheel rotatably mounted on the toggle. The driver is positioned between the energy device and the wheel such that once the wheel is moved by the toggle, the driver engages the energy device and is driven thereby.

Abstract: Recovery of paper fiber for reuse from waste paper materials containing plastic sheet and film is facilitated by the combination of a pulper in which the waste paper materials are pulped in a pulper equipped with a junk remover connected with the bottom of the pulper tub by a chute and provided with a recycling circuit by which the plastic and other lightweight trash picked up by the conveyor buckets in the junk remover is removed from the pulping system, passed through a detrasher for removing bulky objects, then passed through a deflaking station, and then returned to the pulper tub for further defibering. This continuous withdrawal of liquid from the junk remover and its return to the tub act to maintain the hydrostatic head in the tub at a higher effective level than in the junk remover tower and thereby to promote transfer of the plastic and other lightweight trash to the junk remover for removal by the recycling circuit.

Abstract: A food waste disposal apparatus having an improved effluent recirculating structure for facilitating dislodging of waste material which may become lodged in the comminuting portion of the disposer. The recirculating structure includes a tubular wall member having a plurality of openings to the grinding chamber above the cutter-impeller structure. The tubular wall member is spaced inwardly of the housing to define therebetween an annular flow space for conducting a portion of the effluent delivered from the cutter-impeller outwardly to and inwardly through the wall member openings to provide the desired waste dislodging recirculation of the effluent.

Abstract: An apparatus is disclosed for comminuting a colored pigment bar and mixing the comminuted pigment with an uncolored plastic material to form a colored plastic material which is subsequently molded or extruded into a colored plastic article. The apparatus features a rotating, discontinuous cutting blade to minimize static electricity formation so as to allow more thorough mixing of the pigment with the uncolored material. A storage mechanism is also disclosed to store the colored pigment bars and bring them into contact with the cutting blade.

Abstract: A bowl mill for pulverizing coal, wherein two bowl surfaces are rotated on the same shaft. The raw crushed coal is pulverized in one of the bowls, and the pulverized coal therefrom is then transported in an air stream to a classifier from where the fines are carried on to the ultimate point of use, and the more coarse particles are discharged into the second bowl for further grinding.

Abstract: A process for producing pulverous selenium from dried raw selenium by distillation, granulating the molten distillate, dripping it into water, grinding the granules, and drying the powder, in which the drying of the raw selenium before the distillation is by spray drying, the selenium granules being ground while in the form of an aqueous slurry, and the final drying of the ground selenium slurry being again effected by spray drying.

Abstract: A cartridge is provided for applying staples to the disunited fascia of a patient. The cartridge is adapted to associate with a surgical stapling instrument which supplies rectilinear thrust to power the cartridge. The cartridge houses a plurality of staples mounted on a flexible belt. A pusher is slidably mounted in the cartridge for forming the staples around an anvil. A spring pawl associated with the pusher moves the staples into a position ready to be fired as the forwardmost staple is being formed around the anvil. As a staple is formed around the anvil, a spring associated with the cartridge cover holds the staple against the anvil. This spring also provides the function of ejecting the staple from the cartridge after it has been formed. On the return stroke of the pusher, a spring pawl arrangement associated with the cartridge cover prevents the belt and staples from moving rearward away from the anvil.

Abstract: A device for use without an external power source and comprising two hand-operated pinning assemblies arranged at 90.degree. to each other with a foot operable jaw assembly for holding mitred picture frame moulding against the pinning assemblies during pinning, each pinning assembly incorporating a magazine for pins, and visible adjustable stops being provided to control the insertion depth of the pins.

Abstract: A pneumatic tool for driving clamp nails, having a single nose piece making possible the driving of clamp nails into the outside corner of a miter joint, or the inside corner of a miter joint, and having a plate which may be adjusted to position the nose piece at any angle from 45.degree. to 30.degree. off the vertical centerline of the tool. When set at the 30.degree. angle, the nose piece is in the optimum position to drive a clamp nail into an inside right angled butt joint. A safety is provided having a configuration like the nose piece. The tool is provided with a magazine for a stick of clamp nails, and an adjustable rail in the magazine makes it adaptable to clamp nails of different sizes. The guide body through which the clamp nails are fed into position below the drive is provided with a configuration which makes it impossible to feed clamp nails if the stick is inserted into the magazine upside down.

Abstract: A method of processing hydraulically mined ore slurries containing, in addition to the valuable ore, substantial quantities of contaminating argillaceous material and silica, involving initially separating the argillaceous material from the ore slurry while concomitantly concentrating said slurry to at least 65% solids content, depositing the wet concentrate thus formed on a continuous belt and conveying said wet concentrate via said belt to a beneficiation plant for further treatment.

Abstract: Method and apparatus for making a wound rope or cord bound brush. The method and apparatus of the invention makes it possible to vary the angle at which the brush bristles project from the surface of the brush core (a) in either direction tangentially of the brush core with respect to a longitudinal axial plane thereof, and/or (b) the angle of the bristles longitudinally of the brush with respect to transverse planes through the axis of the brush.

Abstract: The invention relates to the recovering of free metal entrained in dross or skimmings obtained from melts of aluminum and aluminum based alloys wherein the dross has been partially prepared by prior art preparation processes. The invention is directed to the cleaning and preparation of the dross by the more effective removal of substantial portions of the oxide coatings on the dross. This results in the recovery of a significantly higher proportion of the free metal contained in the dross than is recovered using prior art cleaning and recovery processes. The dross, as partially processed by prior art methods, is sequentially fed through selected mechanical rolling and milling stages so as to separate aluminum oxide dust and aluminum concentrates from one another. The aluminum concentrates may be utilized in conventional furnace recovery methods to produce aluminum ingot or may be further processed through selected stages to produce high quality aluminum pellets.

Abstract: In a machine for driving a fastener, e.g. a nail, a staple or the like by one impact blow into an object by means of a driver actuating the fastener and connected to one end of a bar-shaped spring which extends between a plurality of spring supports, said supports being distributed throughout the length of the spring and said driver being reciprocable in a tensioning stroke for tensioning and bending the spring about at least one of the supports and in a striking stroke generated by the tensional force of the spring for driving the fastener into the object, the invention provides the improvement that at least one of the supports is adjustable for regulating the tensional force of the spring in order to control the energy released in the striking stroke.

Abstract: There is disclosed apparatus for attaching tags using fasteners of a type having a bar section and a button section joined by a filament section. Opposed operating levers are pivotally mounted on opposite sides of the body. Each lever carries a cam. A first carrier is mounted by the body and a second carrier is mounted by the first carrier. A push rod is connected to the second carrier. Each cam cooperates with a respective roller. A rack is secured to each body section and the second carrier has a pair of racks. Each gear meshes with a respective body section rack and a respective second carrier rack. A pawl is coupled to the first carrier. Action of the operating levers causes the cams to drive the carrier. Movement of the first carrier causes the racks and gears to drive the push rod forward until the pawl is moved to a ready position.

Abstract: Disclosed are method and apparatus for applying forces to a waste paper mixture programmed to procure progressive fragmentation of the respective components of the mixture; the method including the step of harvesting the resulting paper fragments at intervals when fragmentation of one component is virtually completed and fragmentation of the next commences.

Abstract: A document shredder which comprises a strip cutter to cut waste document into strips, a chip cutter to cut the strips into chips, and a minuting device disposed downstream of the chip cutters to cut the chips into pulp-like mass. The minuting device includes a housing having a conical surface formed with cutting teeth, and a conical rotary body formed with cutting teeth in engagement the cutting teeth of the housing.

Abstract: A surgical instrument for suturing tissue with metal staples includes an anvil unit which has two elongated jaws aligned with each other and having inner surfaces facing each other and formed with longitudinal guiding grooves for a staple. The front ends of the jaws carry anvils for bending the tips of the staples, said anvils being shaped as curved needles, having tips facing each other and formed with longitudinal grooves which are extensions of said guiding grooves of the jaws. The jaws can be releasably connected to each other in a position in which the longitudinal grooves of the jaws are approximately parallel to each other. A detachable staple-driving unit has a frame mounted on the jaws, provided with grooves for a staple and a staple driving member with a lever for operating the same.

Abstract: In a setting gun using explosive force for driving fastening elements into a receiving material, an elastic damping device is provided to absorb the residual kinetic energy of a driving piston. The damping device consists of a plurality of serially arranged pairs of rings extending between a muzzle tube and a stop ring mounted in the forward end of a barrel. Each pair of rings consists of a radially inner ring and a radially outer ring each having a frusto-conical surface in contact with the other. The frusto-conical surfaces converge in the firing direction of the setting gun. In one embodiment, each pair of rings has the same axial length, however, in another embodiment the axial length of the rings increases in the firing direction of the setting gun so that the mass of the pairs of rings increases in the firing direction.

Abstract: An electro-mechanical impact device, useful for driving nails, staples and other fastening elements. The driving member is driven by frictional engagement between a pair of counter-rotating high speed flywheels. The device has a safety provision whereby it cannot be actuated until the nose of the device is pressed against a work piece. This action also produces a movement of one of the flywheels toward the other. Actuation of the trigger moves the driving member into engagement between the counter-rotating flywheels, and these propel the driving element in a fastener driving direction. The inertia of the movable flywheel aids in efficient engagement of the flywheels with the driving member, and the movable flywheel is provided with a leaf spring permitting it to yield so that the driving member can pass between the flywheels while maintaining frictional engagement between the flywheels and the driving member.

Abstract: A needle tube or the like useful in dispensing fastener attachment members, the needle including a tip, a central portion and a mounting portion, the mounting portion having a hollow rearward end in which there is provided a knife edge extending inwardly towards the tip, a first feed slot at substantially ninety degrees to the knife edge and a second slot for feeding fastener attachment members through the needle, the second slot substantially ninety degrees to the first slot. In one embodiment of the invention the mounting portion comprises a plastic shank in which there is mounted a needle core which includes the aforementioned knife edge.