Abstract: A heavy duty cutting shear has first and second elongated jaws pivotably connected adjacent their inner ends for movement relative to each other between open and closed positions, and opposed working faces. The working face of the second jaw provides a recess into which the working face of the first jaw when the jaws are moved into the closed position. Each jaw has a pair of side cutting members extending along the sides of its working face and an end cutting member extending transversely of the side cutting members adjacent the jaw outer end. The side cutting members of the first jaw having inner and outer portions which intersect at an included angle of about 120.degree.-160.degree..

Abstract: A rail breaker attachable to the boom structure and hydraulic system of a hydraulic excavator and having an elongate frame tiltable by a hydraulic cylinder of the excavator, a grapple and a swingable breaker arm on the outer end of the frame directed toward the excavator, the grapple having a width to grasp and clamp a length of the rail to immobilize the rail, the lower stationary jaw of the grapple having a hardened fulcrum blade over which the rail is broken, the upper jaw of the grapple having a nicking blade to put a nick in the rail to be broken, and the breaker arm swinging against the extended portion of the rail which is being clamped by a grapple to break the rail at the nick produced and over the fulcrum blade.

Abstract: An apparatus for collapsing and crushing heavy-duty steel well casings and similar pipes to terminate flow of liquids such as crude oil therethrough, a housing portion gripping and sealing spaced portions of the casing, casing collapsing rams at opposite sides of the casing and between said portions of the housing and confined within portions of the housing; and a pair of hydraulic cylinders driving the rams inwardly against the casing to collapse it and crush it to reduce and substantially prevent flow of liquid or crude oil through the casing.

Abstract: A heavy duty mobile wood and tire shear having a lower stationary jaw rigidly attachable to the dipper stick of a hydraulic excavator. The lower jaw has a forwardly extending face plate for receiving and supporting the workpiece with two forwardly extending tines. An upper C-shaped swingable jaw is pivotally mounted to the lower jaw and connected to the hydraulic cylinder of the dipper stick. The swingable jaw has a cutting blade with a knife-like edge. The upper jaw swings between open and closed positions relative to the lower jaw as to bring the cutting blade down upon the face plate as to penetrate and shear through wood. Shearing blades are releasably affixable along the knife-like edge of the cutting blade and along the face plate as to bring the shearing blades into shearing relation as the upper jaw approaches the closed position as to also shear through tires.

Abstract: A rail breaker attachable to the boom structure and hydraulic system of a hydraulic excavator and having an elongate frame tiltable by a hydraulic cylinder of the excavator, a grapple and a swingable breaker arm on the outer end of the frame, the grapple having a width to grasp and clamp a length of the rail to immobilize the rail, the lower stationary jaw of the grapple having a hardened fulcrum blade over which the rail is broken, the upper jaw of the grapple having a nicking blade to put a nick in the rail to be broken, and the breaker arm swinging against the extended portion of the rail which is being clamped by a grapple to break the rail at the nick produced and over the fulcrum blade.

Abstract: A demolition tool for attachment to the boom structure and hydraulic system of a hydraulic excavator having a pair of jaws pivotally connected together as to be mountable on the frame of the tool by a movable pin so that the jaws may be placed with other jaws having other forms of demolition characteristics. The jaws may be a shear for steel or other structural material, including concrete, and the jaws may be a concrete crusher, a rock or coral breaker, a wood shear, a plate shear, or other form of demolition device. Both jaws are swingable and independently swingable, operated by a common manifold supplying hydraulic fluid to the cylinders. The jaws swing through operational arcs and are arranged so that the direction of thrust from the cylinders is tangential to the pin connecting the cylinders to the jaws at a location intermediate the ends of the operational arcs.

Abstract: An attachment for a hydraulic excavator including a pair of jaws mounted on a frame and having offset points or projections on the jaws to apply localized pressure onto a rock or coral piece for breaking the workpiece. Both jaws are movable and operable by individual hydraulic cylinders. The direction of thrust against the jaws being tangential to the arc of movement of the pins for connecting the cylinders to the jaws at a location approximately midway of the operational arc of the jaws.

Abstract: A tray-like receptacle or container for catching falling debris from bridge deck demolitions is disclosed. The receptacle extends under a bridge deck and a support arm affixed to an end of the receptacle is disposed above the bridge deck. A crane suspends the receptacle with a cable attached to the support arm and another cable affixed to the receptacle is drawn in to tilt the receptacle so that crushed, collected concrete slides off an open end of the receptacle and into a dump truck. The support arm of the receptacle is disconnectable for storage and transportation purposes.

Abstract: The present invention relates to heavy duty wood cutting shear attachments of a large scale for connection to a boom structure of a hydraulic excavator for cutting tree stumps and the like. The wood cutting shear includes a swingable jaw and a stationary jaw. The swingable jaw has a C-shaped frame with a knife like cutting blade affixed therein. The stationary jaw includes a stump supporting section having a blade receiving slot with a width of approximately the thickness of the cutting blade. Besides slicing through a stump placed between the jaws, the knife like blade may cooperate with the stump supporting section to shear portions of the stump being sliced.

Abstract: Disclosed is a heavy-duty plate cutting shear to be carried on an elevated lifting device, comprising a frame with a mounting mechanism for attaching to such a device, a slidable foot affixed on the frame and having an unobstructed base face for engaging and sliding along the plate being sheared, the slidable foot having an elongate slot opening through the base face and also having metal shearing edges at both sides of the slot and adjoining the face, a swingably oscillatable blade having pivot mounted on the foot, the blade being in the slot and extending form the pivot and across the base face, the blade having metal cutting edges confronting and traversing the shearing edges on the foot.

Abstract: Apparatus for attachment to a boom of a backhoe or other mobile material handling machine, having a stick member pivotally attached to the boom, a first jaw and shear pivotally attached to the distal end of the stick member, and a second jaw and shear pivotally attached to the first jaw and shear, so that power actuation of one jaw causes opening and closing of the jaws and permits interleaved jaw engagement and shearing action between the jaws near the closure position. A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having is edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: The present invention is a grapple for orienting track rails. The grapple includes a front tine and rear tine arcuate in shape and pivotally secured to a bottom end of a frame and depending therefrom to tip ends. Each tine defines an inner concave surface, and the tines are mounted to the frames so that the concave surfaces face towards each other. The front tine includes a knob portion integral with its tip end that extends outwardly from its inner concave surface towards the inner concave surface of the back tine. The tines are operated by a pair of hydraulic cylinders, and each tine includes a plurality of gear teeth extending from the end thereof that is secured to the frame. The gear teeth are enmeshed and provide for coincidental opening and closing of the tines by operation of the hydraulic cylinders. The knob portion of the front tine provides for cooperation with the ball portion of the railroad rail for orienting the rail into a desired upright position.

Abstract: A portable crusher for removeable attachment to the boom structure and hydraulic system of a mobile power source such as a backhoe, or front end loader-type machine for compacting scrap metal and in particular automobile bodies. The crusher includes a frame having a large panel-shaped fixed jaw, integral with and depending from one end of the frame. The portable crusher also includes a panel-shaped operable jaw adjacent the frame and depending therefrom. The operable jaw is connected to the frame by two pairs of links so that the operable jaw can be swung towards and away from the fixed jaw, and so that during such movement the operable jaw is maintained in a substantially parallel relationship with the fixed jaw. The crusher includes a hydraulic cylinder secured on one end to a pair of the links and on its other end to the frame for operating the operable jaw.

Abstract: Apparatus for attachment to a boom of a backhoe or other mobile material handling machine, having a stick member pivotally attached to the boom, a first jaw and shear pivotally attached to the distal end of the stick member, and a second jaw and shear pivotally attached to the first jaw and shear, so that power actuation of one jaw causes opening and closing of the jaws and permits interleaved jaw engagement and shearing action between the jaws near the closure position. A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having is edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: A railroad track rail lifting and breaking machine having a mobile frame to be drawn along the bed of a railroad track, runners directing downward thrust onto the ties, guides for directing the rails upwardly over the frame and runners and through a slide, the slide having clamps for clamping to the rails, there also being pressure shoes for bearing against the inner sides of the rails when clamped to break the rails, and a notching blade for producing nicks on the inner sides of the rails opposite the anvils over which the rails are broken by the pressure shoes.

Abstract: A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having its edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: This invention relates to an attachment for the dipper stick of a backhoe and more particularly relates to a grapple rake for mounting on the end of the dipper stick.

Abstract: A grapple shear having a lower jaw with three widely spaced forwardly projecting tines, the outer tines having upper ends mounting the upper jaw with a pair of tines to swing into interleaving relation with the tines of the lower jaw, the outer tines of the lower jaw having forwardly opening angular bights, a swingable shear blade on the central tine of the lower jaw which carries an upright mast and a hydraulic ram on the top of the mast and driving the shear blade downwardly in a cutting motion.

Abstract: An arcuate-shaped upper jaw is pivotally attached near its inner end to the outer end of the stick member extending from the boom assembly of a backhoe, and an arcuate-shaped lower jaw is pivotally connected to the inner end of the upper jaw, the lower jaw further being pivotally connected by means of a rod or a hydraulic cylinder to the underside of the stick member. A double-acting hydraulic cylinder disposed on the stick member causes movement of the upper jaw, which thereby effects movement of the lower jaw, such that the jaws can be moved together for clamping or apart for a raking operation by the lower jaw.

Abstract: A demolition tool for attachment to the boom structure and hydraulic system of a hydraulic excavator having a pair of jaws pivotally connected together as to be mountable on the frame of the tool by a movable pin so that the jaws may be placed with other jaws having other forms of demolition characteristics. The jaws may be a shear for steel or other structural material, including concrete, and the jaws may be a concrete crusher, a rock or coral breaker, a wood shear, a plate shear, or other form of demolition device. Both jaws are swingable and independently swingable, operated by a common manifold supplying hydraulic fluid to the cylinders. The jaws swing through operational arcs and are arranged so that the direction of thrust from the cylinders is tangential to the pin connecting the cylinders to the jaws at a location intermediate the ends of the operational arcs.