Abstract: A chain bar unit for a wall saw is presented herein. The chain bar unit can include a bar configured to receive a circulating chain or wire around a perimeter of the bar. The chain bar unit also can include a driving gear for driving the chain or wire around the bar, the driving gear configured to be coupled to an output shaft of the wall saw. The chain bar unit further includes the bar being tapered from an end proximate to the driving gear to a distal end having a distal end radius, wherein a width of the bar at the proximate end, is at least two times the distal end radius of the distal end.

Abstract: A frame saw for sawing a relatively thick piece of wooden feed stock simultaneously into a plurality of thinner pieces of wood, and including a feed assembly for continuously feeding the stock from an upstream input position to a downstream output position, and a plurality of closely spaced-apart parallel reciprocable saw blades positioned intermediate the input position and the output position for sawing the stock into thinner pieces of stock as the stock is moved by the feed assembly relative to the blades. A drive assembly is operatively connected to the blades for driving the blades in a reciprocating motion comprising alternate cutting and non-cutting strokes. A linear offset motion assembly is provided for moving the reciprocating blades alternately upstream and downstream into linearly-offset cutting and non-cutting positions relative to the stock.

Abstract: The present invention provides a bale slicer that processes large forage bales into a form useable by TMR mixing systems. The bale slicer is simple to operate, reduces the power required to process a bale as compared to other bale processors and processes forage bales into a size suitable for use as feed. The bale slicer includes a main frame, bale chamber, platforms, a cutting mechanism, and power mechanism. The bale slicer utilizes a slicing motion by the cutting mechanism to process the large forage bales. The forage bale to be processed remains stationary and is held in its compressed form by the bale chamber during slicing. The cutting mechanism passes by the bale chamber in order to slice the bale. At the end of each slice made by the cutting mechanism, the forage falls to the floor and the bale drops down in the bale chamber in preparation for the return pass by the cutting mechanism. The fallen forage is then ready to be transported to a TMR mixer.

Abstract: The machine tool comprises a frame (1, 2, 3) with two fixing elements (22 and 39) for fastening a scroll saw blade. The fixing element (22) is driven by an electrical motor (5) in a vertical reciprocating movement. The two fixing elements (22 and 39) are linked to each other by a metallic ribbon (45) passing on pulleys (46 to 50). The position of the pulley (47) can be changed by means of a cam (53) acting on an arm (52) so as to stretch the ribbon (45) to the desired value.

Abstract: A vertical gang saw produces an ovoidal sawing curve when the frame has at each corner attached feet that are engaged in slide bars which themselves are attached by an extremity to the body of the machine. The lower and upper slide bars undergo a synchronized swing movement that is transmitted by small drive rods. The lower drive rods are driven by an eccentric gear moved vertically. The upper drive rods are driven by an oscillating pinion with a double cam.

Abstract: An apparatus for cutting sheet material spread in one or more layers over a supporting surface uses a reciprocating cutting blade cutter movable in two coordinate directions in the plane of the supporting surface to enable the cutting blade to follow a desired line of cut relative to the sheet material. The cutting blade has a leading cutting edge that performs the actual cutting operation with a slicing action. During the cutting operation, mechanical means within the apparatus produces blade dither about the axis of reciprocation in synchronism with the reciprocation strokes of the blade.

Abstract: An apparatus for sawing different kinds of materials has a supporting frame including a girder-type construction defining an opening for the feed-through of materials to be cut in longitudinal direction by a saw blade. A supporting platform for materials to be cut includes a carriage platform for materials to be cut includes a carriage displaceable in longitudinal direction, and a clamping arrangement for materials to be cut is located on the carriage. At least one supporting bracket is positioned laterally of the saw blade in front and back regions of the frame and mounted on said carriage, and an upper and lower cross-beam is provided for each supporting bracket, with each lower cross-beam being arranged at a distance from the carrier. Vertically movable rods are arranged between the upper and lower cross-beams and carry a clamping device for materials to be cut. The saw blades may be slanted for increased efficiency and durability.