Abstract: A pressurized roller-colloid mill in which the conventional rotor and stator of a colloid mill are preceded by one or more adjustable-thrust roller bearing assemblies disposed in a series relationship. A product to be refined in the form of a slurry is pumped into the feeding port of the mill to pass between the rollers and the inner and outer raceways of one or more roller bearing assemblies, then to the gap between conventional rotor and stator elements of a colloid mill. The multiple rollers and their cooperating raceways constitute working surface areas far in excess of conventional colloid mill rotors and stators. Gang mounting of the rotor of the mill and the inner raceways of the roller bearing assemblies upon a common axially movable shaft permits gap adjustment for the enhancement of milling action. A relief valve at the outlet of the mill cooperates with the adjustable gap to provide an output of product of any desired particle size down to the low micron range.

Abstract: The invention concerns a fastening tool employing a caseless munition. The tool includes a cavity for the munition, or explosive chamber, constituting a high-pressure chamber communicating with a low-pressure expansion chamber through at least one passage. The cavity for the munition, or explosive chamber, is formed radially in the very body of the breech, access thereto for loading being located on the periphery of said breech. It is possible to close said access after loading with a closing member, and the passage or passages putting the munition cavity in communication with the low-pressure chamber are formed in said breech.

Abstract: Portable office stapler, having a flat box-like configuration with an approximately constant cross-section in the shape of a flattened cake of soap, having mechanical and covering functions, and comprising two parts, including a body containing all of the other moving members and a lid-button pivoted at the front and comprising most of the back for the box-like member, the latter transmitting between said lid-button and an anvil integral with the body all of the forces and reactions required for staple closing. At the front slit is provided for introducing sheets or layers to be stapled with the cooperation thereat of said anvil, a staple-carrying magazine, a feeder, a push-load plate, a hammer, and a staple closing plate. The drive for all of these members is produced by a button acting through a roller on the hammer at a contact location between one pin and the button-pressing zone and between a second pin and the hammer head.

Abstract: Municipal refuse is treated to produce fuel particularly useful for the operation of a power generating boiler by a process which is characterized by shredding of the as-received material, separation of the light materials prior to pulping of the heavy materials, and ultimate separation from the pulped materials of the inorganic constituents, after which the remaining slurry of predominantly organic materials is dewatered to produce a particulate fuel. The light materials separated after the initial shredding operation are then directly combind with the dewatered organic residue from the pulping operation to effect further reduction in the moisture content of the resultant mixture. The invention is especially applicable to communities where the garbage and trash are collected separately, with the lights produced by shredding and air classifying the trash being added to the fuel product produced by pulping the garbage.

Abstract: Fastener attachment apparatus for separating a fastener attachment device comprising two end bars and a filament coupled therebetween from stock comprising two undivided and continuous side members and a plurality of cross links coupled therebetween and dispensing the devices through one or more slotted needles by pushing an end bar of the device through a slot in the needle.In addition there is disclosed a fastener attachment apparatus for simultaneously pushing each of the two end bars of a fastener attachment device through two slotted needles with the filament between the end bars extending through the slot of each of the needles and between the needles.

Abstract: An apparatus for defibering conglomerates of fiber in fibrous suspensions, particularly useful with fibrous suspensions of low stock density, comprising a housing having an inlet and outlets for the fibrous suspension, a hollow cylinder within the housing, and a rotor mounted for rotation within the hollow cylinder. The annular space between the hollow cylinder and the rotor comprises a first region to dewater and screen the fibrous suspension and a second region to defiber conglomerates of fiber in the dewatered portion of the fibrous suspension. In a preferred embodiment, the annular space comprises a third region to wash dirt particles from the processed fibrous suspension and also to dilute said suspension to accommodate a further screening operation.

Abstract: This invention provides a process for the preparation of dry-medicament granulation. An apparatus for practicing such process comprises an enclosed-circular mixing chamber containing mixing means with a separate air inlet means and air outlet means, both of which are in flow communication with the chamber. The air outlet means is provided with a collecting means for collecting the dry-fine particles of the medicament granulation and may be equipped with a vibrator or other means for returning them to the mixing chamber. The process provides a one step preparation in a batch process of medicament granulations, whereby the granulation may be directly compressed into solid-dosage forms without further processing.

Abstract: The outlet of a magazine for a supply of parallel bristles in a bursh making machine is adjacent to an oscillatable element which transfers compacted tufts of bristles to an inserting tool. The supply of bristles in the magazine is compacted by one or more reciprocable tamping members which compact the bristles during movement toward the outlet. Fresh bristles can be admitted in unconfined condition or in the form of bundles containing batches of parallel bristles confined in tubular envelopes. The envelopes are opened and removed not later than in the magazine and the released bristles are immediately compacted by one of the tamping members which urges the bristles against the other tamping member which continues to compress the remnant of the supply. The other tamping member is withdrawn and moved backwards prior to reintroduction into the magazine above the freshly admitted batch. The tamping members can bypass each other in the magazine.

Abstract: Mechanisms are disclosed for actuating the conventional caliper brakes of bicycles by back pedalling the drive sprocket. In one embodiment, an overrunning clutch drives a cable drum which tensions an actuator cable for a caliper brake. In a further embodiment, a pawl riding on the drive sprocket of the bicycle extends a linkage which pulls a cable to actuate the caliper brake. In still another embodiment, a spiral gear is rotated upon back pedalling of the bicycle drive sprocket to tension a brake actuating cable.

Abstract: A grinding mill having a feeding chamber for directing grain between grinding stones where it is ground into flour and from where it is discharged into a turbine chamber. Means are provided for directing cooling air into the turbine chamber, across the rotating grinding stone, and centrifugally out of the housing through a tangential discharge nozzle. The relative position of the grinding stones is easily varied by using a control handle to move the drive shaft of the motor, on which the rotating grinding stone is mounted. The position of the control handle is fixed by wedging it to a portion of the mill housing.

Abstract: This invention relates to new and useful brush making apparatus which allows the manufacture of a wide variety of different type brush constructions having flared tufts. The apparatus is capable of picking, trimming and assembling all the synthetic filament tufts required in a tufted brush construction simultaneously and fusing the tufts at different angles from one another onto a separate substrate. The apparatus comprises a filament stock box for dispensing cut-to-length synthetic filament, a new and improved picking element containing movable means for changing the parallel attitude of at least two adjacent picker tubes, melting means for fusing one end of the synthetic filament, and mounting means for attaching fused filament ends onto a substrate.

Abstract: A method of processing abrasive material, the material being comminuted by means of a roller mill, thereafter sifted in an air separator, and the course material which is collected in the air separation again being comminuted in the roller mill. Furthermore, the invention relates to an apparatus for carrying out said method.

Abstract: A surgical stapling instrument for forming and implanting a staple in the skin or fascia of a patient to close a wound or incision therein. The instrument comprises a handle portion and a nose portion. The nose portion houses a staple driver operable by an actuator pivotally associated with the handle portion. An anvil plate is affixed to the bottom of the nose portion. A plurality of staples are supported by the anvil plate and means are provided to advance the staples along the anvil plate toward the forward end thereof about which each staple is formed by the staple driver. The nose portion is also provided with a staple retaining surface spaced above the forward end of the anvil plate to minimize bending of the staple crown during the staple forming operation.

Abstract: A rotor for a pulper for liquid slurry stock includes a rotor body provided with circumferentially spaced composite vanes, each of which includes a defibering portion and a pumping portion. The defibering portion constitutes the outer end portion of each vane and is of relatively small axial dimensions. The pumping portion constitutes the upper portion of each composite vane and is of substantially greater axial dimensions with its upper surface of convex airfoil shape. The leading face of each pumping portion is essentially plane and inclined forwardly to overhang the trailing edge of the adjacent pumping portion and define therewith a groove in which the stock is channeled for forced centrifugally outward flow. In the preferred embodiment, the rotor cooperates with a frustoconical extraction plate, and the defibering vane portions have their undersurfaces inclined to match the inclination of the extraction plate and are proportioned to extend fully across the extraction plate.

Abstract: A pump for grinding materials contained in a liquid includes a comminutor located at the pump inlet to grind the material as it passes therethrough and into a pumping chamber. The pumping action is created by an impeller which communicates with the pumping chamber but which is located outside thereof to draw the material through the comminutor and into the chamber for radial discharge therefrom. The comminutor includes a stationary annular ring in the inlet having a plurality of grinding teeth which form the internal diameter of the ring. A cutting impeller is rotatable within the ring and has at least one blade which extends from one side of the impeller body axially outwardly beyond the ring to force the material between the teeth of the ring. The other side of the impeller body is provided with means to provide additional shearing of the material and prevent clogging of the material between the teeth of the ring.

Abstract: An agitator or stirrer mill and especially a colloidal mill, having rotating grinding impellers in a vessel, the blades of such impellers being adjustable in their inclination relatively to a radial plane of the vessel and rotating axle respectively in order to adjust the stirring and agitating intensity. This may allow treatment of agents without the use of auxiliary milling particles such as balls in the mill. Further, the blades of the impellers are individually removable and readily exchangeable in order to replace worn impeller blades.

Abstract: An electromagnetic stapler having a staple driving circuit with an actuating switch, and having a levered trigger which is depressed by the user so that the lever actuates the switch, whereinafter actuation, a moving element of staple driving mechanism strikes the lever causing disengagement of the lever from the switch so that only one shot is permissible unless and until the trigger is again depressed. The trigger is useful in mechanically providing a safety one shot control for a conventional stapler having a continuous repetitive electrical driving circuit, and the trigger is readily mounted with a conventional stapler. The stapler is provided with a one shot action as aforesaid, whereas in the second position there is a repetitive driving action with the trigger depressed.

Abstract: A hollow pin set in the downstream end of the auger of a conventional food grinder has a downstream end which protrudes to an accessible outside area of the grinder and a downstream - facing shoulder which bears against the upstream side of the knife assembly of said grinder, biasing said knife against a perforated plate. An inside pin or bolt passes through the hollow pin, threadably connected therewith, and has a downstream end which protrudes from the hollow pin and which is adapted to receive a wrench. The upstream end of said inside pin or bolt presses against a compression spring. Applying a wrench to rotate the downstream end of said inside pin or bolt changes the compression of the spring and thereby increases or decreases the bias between said knife assembly and the perforated plate which the knife is biased against.

Abstract: This invention is concerned with a resin material reclaiming machine consisting of a feeding means, dehydrating means and an assorting means thereby to reclaim raw materials of synthetic resin by shredding and cleaning dirty resin or resinated articles used in agricultural pursuits.

Abstract: Recovery of paper fiber for reuse for 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 pump constructed and arranged to maintain the hydrostatic head in the tub at a higher effective level than in the junk remover tower by circulating liquid from the tower back to the tub. The result is to cause transfer of the plastic and other lightweight trash to the junk remover for removal by its conveyor buckets and to prevent accumulation of lightweight trash in the tub to the extent that it interferes with extraction of the defibered paper slurry.