Abstract: This invention relates to an improvement in a single-roll crusher having a housing, a roll body freely rotatably supported on an eccentrically rotatable drive shaft in said housing, at least one laterally mounted crushing beam pendularly suspended in the upper part of said housing and resting in the lower region thereof at approximately the height of the roll body axis, by means of a pressure bar, against a prestressed set of springs solidly integrated in the crusher housing in order to absorb the crushing force, the prestressing force also being adjustable when the set of springs is integrated and the gap adjustment at the exit of the crushing space is achieved by changing the spacer thickness between the pressure bar and a spring retainer, the improvement comprising bayonet lock means holding the prestressed set of springs in the crusher housing, the prongs and mating prongs of said bayonet lock means mutually engaging and releasing each other in assembly and disassembly, and key means pressing the support

Abstract: An upright inclined leg supported frame includes a jaw movable toward and away from an anvil by a manually reciprocated handle for crushing ore samples entering the spacing between the movable jaw and anvil from a hopper.

Abstract: Disintegrator of wood products, such as demolition timber containing objects of metal and other hard material comprising a housing having an opening in its top for receiving the wood products for treatment and two groups of vertically extending cutting devices in the interior thereof. One group of the cutting devices is fixedly located near one end of the housing and the other group of cutting devices is mounted on a movable frame. Each group of the cutting devices are in side-by-side and in spaced relationship with each other, with the interspace between the cutting devices of one group being bridged by the corresponding cutting devices of the other group. A power jack is connected with the frame to move the groups of cutting devices into overlapping relationship to cut and disintegrate the wood products in the housing. Openings in the frame and housing are provided for feeding-out disintegrated material.

Abstract: A rock crusher includes a rotary eccentric drive mechanism for imparting substantially linear motion to a movable jaw between a pair of fixed jaws. A driven cam shaft cooperates with a surrounding eccentric sleeve to impart this motion to the jaw. In one embodiment, the movable jaw is suspended between the fixed jaws by a pivot shaft and one such drive mechanism is employed. In another embodiment, a pair of such drive mechanisms operate together and cause the crushing motion.

Abstract: Plates, of steel or other suitable material and which are appropriately sized, are welded together to form a fabricated swing jaw body for a jaw type crusher. The barrel, disposed proximate the upper extremity of the swing jaw body and which houses the bearings and shaft that operate the swing jaw, is formed either: from a continuous plate rolled into a cylinder of proper size and welded into the swing jaw body; from a number of plates welded to each other and to the swing jaw body to form therewith a cylinder like enclosure for said bearings and shaft; or from a number of plates with openings formed therethrough and stacked and welded one against the other and to said swing jaw body to form said enclosure. A piece of non-rectangular bar stock is secured proximate the bottom of the swing jaw body and has formed therein a seat for the toggle plate mechanism of the crusher jaw.

Abstract: A rock-crushing apparatus is provided with a stationary annular member in which a rock-crushing mechanism is supported. The rock-crushing mechanism has at least two pivoted rock-crushing shanks which are successively impacted by an eccentrically mounted member. The eccentrically mounted member is rotatably driven by a motor and flywheel assembly. The shanks may be biased outwardly so as to trap rocks between the shanks and the stationary member whereupon the successive impacts from the eccentrically mounted member progressively crushes said rocks.

Abstract: In a jaw crusher, pneumatically assisted systems for maintaining the jaw-plate of the crusher on its carrier and for setting the position of the carrier and the jaw-plate mounted thereon.

Abstract: A jaw crusher for the reduction of rock and ore and including a toggle beam and a transversely shiftable wedge at each end of the beam whereby the toggle beam is wedged downwardly into position in the way slots of the crusher side walls and locked therein. Means are provided between the beam ends and the wedges for shifting the wedges in beam locking and unlocking directions. Lifting of these extremely heavy toggle beams is not necessary in order to effect their removal.

Abstract: A securing means for supporting a stationary die plate in a jaw crusher including the combination of angular cored pockets located in the vertical side walls of the stationary die plate and a plurality of lever-like angular wedges which are receivable in the pockets in such a manner that the stationary die plate can be forced against a supporting wall. The lever-like wedges are pivotably mounted against side walls of the jaw crusher and are bolted to the side walls in such a manner that tightening of the bolts causes the ends of the wedges which are received in the angular pockets of the die plates to apply compressive forces against the die plate forcing the die plate against the supporting wall.

Abstract: A jaw crusher is provided with a pressure relieving system to allow a movable jaw of the crusher to yield in case of an excess crushing load. The movable jaw is urged outwardly by a spring and an hydraulic ram exerts inward pressure on the jaw against the spring action. The ram has a control system for reducing the ram pressure when an excess load is encountered allowing the spring to move the jaw outwardly and after a suitable time delay for re-establishing the pressure within the ram to return the jaw to its inner position against the spring action.

Abstract: A cutter head, or excavating bucket; having a forward edge formed for penetrating earth formations, and which may be in the form of teeth; for earth working operations, especially for dredging operations, and the like, and having a vibrator mechanism associated therewith for enhancing the penetrating action of the forward edge of the cutter into an earth formation. Associated with the cutter is a crushing structure which crushes large boulders taken by the cutter down to smaller sizes. The material taken by the cutter, including the crushed boulders, can be removed from the cutter and crusher by water which is drawn therethrough with he material being delivered to a refuse place or to a further processing station.

Abstract: A jaw die assembly for the removeable and stationary jaws of a jaw crusher, the assembly is comprised of a stationary support grid, a center die section secured to said support grid and a pair of identical jaw die end sections, the jaw die end sections being supported on the support grid by interlocking engagement with the center die section and a jaw die extension. Besides having symmetrically identical jaw die end sections which are reversible and interchangeable, the center die section and grid assembly are also reversible, thus utilizing its wear surface area more completely. The center die section, end die sections and jaw die extensions are composed of austinetic manganese steel.