Abstract: A slicing machine has a table defining a horizontal and flat support surface having an outer edge and a blade displaceable transversely along the edge. Thus when the blade moves along the edge a slice is cut from an elongated foodstuff projecting longitudinally over the edge. An automatic feed for the slicing machine includes a pair of feed elements centered on and rotatable about respective parallel longitudinal axes spaced apart transversely above the surface to either side of the foodstuff and each formed with a flat outer end immediately juxtaposed with the edge, and a helicoidal formation at least generally centered on the axis, engageable with the elongated foodstuff between the elements, and extending to the respective outer end. A drive rotates the elements about the respective axes for advancing the foodstuff gripped between the elements in a longitudinal transport direction along the surface toward the edge.

Abstract: A method and apparatus for simultaneously cutting a plurality of picture frame mats with picture display windows in a single operative procedure by initially arranging the mats in a reverse and inverted order and cutting them with an apparatus mounting a plurality of cutters, one for each mat, at an angle to the planes of the mats and thereafter separating and rearranging the mats to frame the picture in their desired picture frame array.

Abstract: In a casing machine, a length adjustable tubular member for adjusting casing holdback force contacts about the outer surface of the casing. The length of the tubular member is adjustable to position a pressure ring on one end of the tubular member closer to or farther from a sizing member which contacts the inner surface of the casing whereby the distance between the pressure ring and sizing member establishes the magnitude of the casing holdback force.

Abstract: A cutter for food materials, has a holder including a corrugated distal end and an intermediate stepped portion forming a rearwardly extending groove. A corrugated cutter is disposed on the holder and includes a corrugated cutting edge extending forwardly of the distal end of the holder and a rearward end engaged in the groove. A vertical cutter located on the corrugated cutter and includes a plurality of vertically extending blades provided therein and spaced away from one another by a constant distance and a rearward end engaged in the groove. A clamp member is fixedly attached to the holder and pressed into engagement with the corrugated and vertical cutter, the distal end edge of the clamp member having a corrugation corresponding to that of the corrugated cutter and having slots each of which receives one of the vertically extending blades of the vertical cutter and has a length larger than the width of the blade.

Abstract: A meat cutting device for cutting long rolls of meat into shorter chunks includes means for conveying long rolls one after another against a plurality of blades, each having converging sharpened edges forming a sharp point. The blades are positioned parallel to one another across and above the path of travel of the rolls and are located so that as a roll is conveyed into the blades, the blade points will pierce through the skin of the roll before the sharpened edges begin to slice through the roll. Preferably the conveyor means includes a table on which support cradles are moved and the blades are positioned above the table with the blade points located above the table so that central axis of the roll is located under the points as the roll is moved through the blades.

Abstract: A tool for driving into the ground pegs having a central sleeve and projecting fins, said pegs being adapted for anchoring stakes into the ground, said tool comprising a rod-like body with pointed lower end and a projecting central part forming a lower transverse surface which is adapted for bearing on the projecting fins of the peg and a ram member sliding along the upper part of the rod-like body to impart blows on said projecting central part. The tool of this invention has a bell-shaped member capping the projecting central part and a flat member assembled to the base of the projecting central portion. It has particularly high resistance to the blows and allows easy replacement of its most fragile parts in case of wear or breakage.

Abstract: A sheet or plate metal machining tool featuring a clamp for gripping the edge of the metal sheet and recognizing the said clamp is in a position to be struck by the tool's machining section. Upon such recognition, the clamp is capable of releasing the sheet and rotating out of the way of the machine tools.

Abstract: A wire rope salvaging apparatus provides a frame which supports an intermittent feed mechanism which moves wire rope to be cut a small length at a time as defined by the stroke of the feed mechanism. A blade also mounted on the frame cuts the wire rope at preselected interval lengths, the blade being movable between cutting and feeding positions. A timing mechanism coordinates movement of the feed and blade mechanism so that the blade first assumes a non-cutting position during the feeding when the wire is moving and then cuts the rope when the feed has stopped and the wire rope is at a still position.

Abstract: The boring and milling head (11) is designed to receive a boring and mill tool (91) provided with a clamping device (55) having a hollow clamping cone (57) and a conical clamping wedge (61), the device being connected in order to resist torsion, to a drive element (21) which may be coupled with a rotary driven boring bar or with another similar mounting. In order to perform a boring and milling in a single operation with the overmentioned boring and milling head (11), without having to change the tool and/or the position of the boring bar or of the work piece, the longitudinal axis of the clamping device (55) containing the boring and milling tool (91) may pivot with respect to the rotation axis (88) of the drive element (21).

Abstract: A circular saw blade is subdivided into two sectors by a serpentine-shaped interruption cut so that at least one noise-damping slot is formed between the two sectors. The serpentine cut forms in the two sectors projections alternating with recesses. The projections of one sector are received in the recesses of the opposite sector. The adjacent projections of the opposite sectors are spaced from each other in the regions of their backsides. The spacing between the backsides of the opposite projections increases towards a central bore of the saw blade.

Abstract: A machine applies screwing and unscrewing torque between successive drill pipes with an essentially vertical axis extending through a tapered opening in a turntable for a well bore. The machine includes a mechanism for applying a high initial unthreading torque and a high final threading torque between successive drill pipes and a mechanism for rapid screwing and unscrewing of successive drill pipes. The machine also includes a clamping mechanism having a bolster and a plurality of shims. The shims have outer portions tapered to fit into the opening of the turntable and have inner portions with a shape corresponding to the shape of the drill pipes. Each shim is supported individually on the bolster by a device that moves the shim into engagement with a drill pipe to grip the same and with sufficient freedom to permit the shims to center the pipe between them automatically. The bolster is lowered to cause the shims to enter the opening in the turntable.

Abstract: A mounting for a cut-clinch mechanism having separate elevator means for each head assembly for movement of the head assemblies on a vertical axis toward and away from a printed circuit board. The separate elevator means are carried on a common U-axis mounting that can move the head assemblies toward and away from one another to accommodate variably spaced component lead wires.

Abstract: A machine for slicing slabs of cheese, sausage or the like comprises a feeding mechanism which supports the slab, feeds it intermittently at an inclination to the horizontal and includes a slab-supporting conveyor belt and gripping claws for holding the back of the slab. The conveyor belt runs over freely rotatable direction-changing rollers and on both sides of the conveyor belt parallel to the upper run thereof and displaceable above same the gripping claws are secured on parallel shafts which are provided with pivoting drives and are mounted in support members to be projectable above the upper run and retractable therefrom. The support members are provided with drives for stepwise advance with fast forward and reverse gears. A mechanism for catching the slices is disposed below the front end of the conveyor belt.

Abstract: A machine for cutting a continuous web into successive individual battery plates has a rigid frame on which a cylindrical rotary anvil is journalled. A rotary knife drum is fixed on a shaft journalled on a pair of laterally spaced upright plates mounted for vertical sliding movement on the frame of the machine. A toggle linkage is utilized to shift the drum mounting plates vertically between operative and inoperative positions. The knife drum shaft is journalled on one of the mounting plates such that the plate can be disengaged from the shaft and tilted laterally outwardly by simply removing a nut threaded on the end of the shaft.

Abstract: Apparatus for piercing a workpiece includes a rotatable head carrying a punch, the head being designed to rotate out of vertical alignment with the die to provide unobstructed clearance above the die so that the workpiece can be easily lifted therefrom and a new workpiece positioned thereon for the next operation.

Abstract: A gulletless saw chain having a cutting link with a cutter portion that is configured to be top sharpenable. A depth gauge portion is positioned in close proximity to the cutting edge corner of the cutter portion. The depth gauge is laterally offset to position the outer most edge of the depth gauge at the corner of the cutting edge to thereby control side penetration as well as depth penetration of the cutting edge. A drive link preceding the cutting link includes a guide portion with an inclined leading edge that corresponds with the leading edge of the depth gauge. A shallow V shaped opening is formed between the depth gauge and drive link guide portion to assist the cutting link in tracking in the kerf.

Abstract: A drill pipe rotary drive mechanism for an earth drilling apparatus comprises a housing, a drive member mounted in the housing for rotation therein about a rotary axis and having an axial bore opening at each end to the exterior of the housing, and a drive mechanism in the housing for rotatably driving the drive member. A drive coupling tool is adapted to be readily removably mounted in the drive member so that the drive mechanism can be used for rotatably driving different types of earth drilling tools, the coupling tool having a tubular body portion telescopingly removably mounted in the axial bore of the drive member, the body portion having an axial opening extending therethrough for reception of a portion of the length of the drill pipe, a flange at one end of the body portion for abutting engagement with one end of the drive member for axially locating the coupling tool in the drive member, the coupling tool being adapted to be non-rotatably coupled to a drilling tool and to the drive member.

Abstract: A chop saw pivotably mounted for movement between a raised rest position and a lowered operational position, having a motor driven saw-blade rotatably supported about a shaft, with a saw housing partially encasing the saw-blade and a swinging blade guard which covers the exposed segment of the saw-blade when the saw is in the rest position. When the saw is lowered to its operational position, a linkage system comprising four effective levers and four hinges clears the blade guard, thereby exposing the saw blade to the work piece. To accommodate changing the saw blade while the saw-unit is in its rest position, the effective length of one of the levers can be temporarily reduced, thereby clearing the blade guard from the exposed section of the saw blade. This provides easy access to the saw-blade to be changed.

Abstract: A pressure-medium driven percussion device including a body, a drill shank gliding axially in the body for transmitting percussions to a drill rod and a percussion piston moving in the body for directing percussions axially to the drill shank. The drill shank includes a lifting piston which moves in a lifting cylinder within the body. The body further includes a channel passing to the lifting cylinder for supplying and removing pressure medium into and out of the lifting cylinder and seals located between the body and the drill shank at both sides of the lifting cylinder. An equalizing channel is located between each seal and a corresponding choking slot. A valve connects the equalizing channels to the source of pressure medium when a channel passing to lifting cylinder is connected to a pressure medium container, and, correspondingly, to the pressure medium container when the channel passing to the lifting cylinder is connected to the source of pressure.

Abstract: A device for punching holes in a surveyor's chain and in metal pieces used for repairing the chain and for riveting together the punched chain and metal pieces comprising an elongated vertical housing having an elongated vertically oriented opening extending transversely therethrough, an upper vertical bore extending from the top of the housing into the vertical opening, a lower female die element received in the lower portion of the opening and having a flat horizontally extending recess therein whose width is equal to that of the chain to be repaired, the female die element also including a pair of spaced holes located on the flat recess, an upper male die member received in the upper portion of the opening and vertically slidable therein, the male die member having a pair of punching rods projecting downwardly, an arbor shaft having a threaded portion received in a threaded portion of the upper bore, a handle for rotating the arbor shaft, the arbor shaft having a lower portion adapted, upon rotation, to en