Abstract: A high speed circular saw blade exhibiting low operating noise characteristics comprises a plurality of narrow expansion slots up to about 3/32 inches wide formed in the outer edge of the blade at a negative angle of about 5.degree.-15.degree. with respect to a line extending radially from the center of the blade to the slots. Two to five slots are provided in each blade, with the depth of each slot being between about 3/4 to 21/2 inches, depending on the diameter of the blade. Expansion holes are provided at the bottom of each slot, and a further reduction in noise level is achieved by plugging these holes with a resilient material such as solder or the like.

Abstract: Support and Latching Means for one end of a relatively heavy rotatable member having a housing with bearing means in the axial line of said rotatable member for supporting the rotatable member when engaged for rotation, arcuate wall means adjacent and concentric with the bearing means forms a transfer cavity to receive the supported end of the rotatable member in the disengaged position, a pass-thru opening in said bearing means, a transfer opening in said arcuate wall, said pass-thru opening sized less than the diameter of the supported end of the rotatable member and communicating with said transfer opening to permit the supported end of the rotatable member to be moved into and out of said housing and to hold the supported end in assembled position when the rotatable member is engaged for rotation, means operative to impart lateral movement to said rotatable member to move the same in said housing from the disengaged position in the transfer cavity to the engaged position in said bearing means, and a raise

Abstract: A device for dividing rectangular bars singly and in multiples produced by dividing rectangular blocks especially of deep-frozen fish which includes a table with a laterally adjustable stop for the bars to be cut and at least one dividing element arranged at a lateral distance therefrom and in particular an endless saw blade, wherein a further lateral stop is positioned on the opposite side of the first lateral stop under formation of a transit slot for the bars; these two stops are coupled by a gear so that they can be uniformally pressed apart against the force of a spring.

Abstract: Apparatus for converting a flat blade band saw for use with spiral blades, the apparatus having upper and lower guide means for guiding a continuous spiral blade in a band saw, and having means for securing the guide means to the band saw structure. The guide means include spaced pairs of upper and lower rollers aligned to receive and to hold a spiral blade moving in a straight line between each pair of rollers.

Abstract: Dispensing apparatus has a holder supporting an opened can of a jellied food product with its open end downwardly disposed and spaced from a stop that limits the extent to which the body of the jellied food product protrudes from the can. A blade is operable to sever a slice from the protruding end of the jellied food product and means are provided to ensure the discharge of the slices onto a receiver having means for collecting juices escaping from the can. Means are also provided to puncture the closed end of the can while supported by the holder and to provide an air assist to cause the jelly body to slide towards the stop.

Abstract: A process for shearing metal which substantially eliminates the effects of plastic deformation in the sheared metal edge. The process comprises (1) cooling the work metal to a cryogenic temperature, and (2) shearing the cooled metal to form a sheared workpiece having edges relatively free of plastic deformation and dimensional distortion. The shearing operations contemplated by the invention include punching, blanking, piercing and slitting.

Abstract: Apparatus and method are disclosed utilizing a high strength fluid jet in an operative cutting system. A computer driven carriage and nozzle movable on the carriage effectuate cutting in the X-Y direction and a sensor arrangement is used to position the nozzle in the Z-direction. The workpiece rests on a flexible wire bed which supports the workpiece and at the same time allows a fluid catcher to pass under the workpiece in registration with the nozzle. A support channeled for allow for movement of the fluid catcher provides support for the workpiece in the area of the cut.

Abstract: An intermittent perforator wheel structure for providing a tearing edge in a workpiece sheet. The tearing edge is defined by a line of spaced elongated slits and a line of spaced short perforation slits offset from the line of elongated slits. The offset is made to be a small preselected amount. The offset may be preselected to assure that the torn portions of the sheet provided by the spaces between the short slits do not extend beyond the line of elongated slits whereby the edge of the sheet seen by a data processing machine, or the like, into which the sheet may be fed comprises a smooth edge with the torn portions being recessed within the straight smooth edge.

Abstract: An adjustable perforator wheel for use in providing a tear line in a sheet-type workpiece. The perforator wheel includes a pair of slotted wheels which are adjustably related to define a preselected smaller slot between elongated slitting portions of the wheel. The slots in the respective first and second wheels may be of relatively large size for facilitated manufacture with the resultant small slot being of extremely small size as desired.

Abstract: An apparatus for cutting sheet material with large surface area, particularly photo-printing paper in strips, has a mobile head which is drawn along a guide path in the cutting direction over a processing table for the sheet by means of a traction device driven by an electric motor. The cutting head consists of a flat deflector located slightly above the processing table, a cutter extending into a groove which forms the guide path in the processing table, and a coupling element for connection to the traction device. Significantly, the deflector simultaneously deflects a further sheet of material while cutting the desired sheet of material.

Abstract: A cutting tool consists of circular, rotatably mounted upper and lower blades, the upper blade extending past the periphery of the cutting shoulder of the lower blade and bearing resiliently against it. The thickness of the cutting shoulder of the lower blade is less than the distance of the said extending of the upper blade, and the material hardness of the upper blade is greater than that of the lower blade.

Abstract: A pair of eccentrically pivotally mounted vise arms on a base plate element disposed concentrically on a rotatably driven drillhead are urged by centrifugal force during rotation into lockable gripping contact with a drill steel element held in the drillhead.

Abstract: A guard barrier in front of the exposed portion of the blade of a band saw is raised or lowered responsive to the elevation of the portion of the non-planar workpiece which is approaching the blade to be cut so that the varying length of exposed blade is continuously guarded without interfering with the cutting operation. A pneumatic cylinder controls the position of the guard barrier. Cam followers at the bottom end of the barrier ride along the uneven surface of the workpiece acting as a cam and follower movements operate a throttle valve which controls the pressure in the pneumatic cylinder to cause the barrier to move to and hover at its guarding location. An auxiliary valve is provided for rapid raising of the barrier to accommodate a steep rise on the workpiece, to broaden the range of useful operation in relation to workpiece profiles, and for manually controlled lifting of the guard.An electric system is coordinated with the pneumatic system to provide control and safety features.

Abstract: A method of attaching an end frame and another structural component of a dynamoelectric machine wherein the structural component is positioned within a receiving means therefor in the end frame. At least one of the end frame and structural component is moved relative to the other thereof to an aligned position for assembly with each other, and metal is cast into the receiving means for forming a rigid tie between the end frame and the structural component for maintaining them in their aligned assembly position. Apparatus for rigidly interconnecting an end frame with another structural component of a dynamoelectric machine is also disclosed.

Abstract: A device for providing coil springs carried by a rope wound about a rotatable drum to a prescribed position, one by one, comprises a separation mechanism having a guide hole in which a prescribed number of coil springs are received, a pair of movable plates to pull the rope, a pair of moving plates holding the coil spring fallen from the guide hole and a pair of blades for cutting the rope after the rope is pulled.

Abstract: A device for punching holes in program strips, which device includes a punch and die mechanism and a carriage for positioning a program strip. The carriage is mounted so as to be movable simultaneously in two mutually perpendicular directions in a plane, thereby permitting rapid and exact positioning of the strip relative to the punch and die. A first locking plate is fixed to the carriage and is provided with guide means which constrain the motion of the carriage in the direction of advancement of the program strip. A second locking plate is meshed with the first locking plate and controls the transverse position of the carriage. Both locking plates are provided with means for locking the carriage against further motion once the position of the carriage has been set.

Abstract: Perforating blades for perforating traveling webs of material such as paper in high speed apparatus are made from cold rolled steel which is hardened in a vacuum furnace to produce a scale free surface. The height to which the blades are ground is determined by measuring the average thickness of the blade and grinding the height of the blade to a dimension and tolerance in accordance with an equation which relates blade height to blade thickness. Thus the thickness of each blade can vary. With conventional knife rolls in which the blades form an angle of 45.degree. relative to a radial line of the knife roll, the sum of the height and thickness for each blade in the knife roll is equal.

Abstract: A hydraulic shear for bar stock including a die housing constructed so that the forces produced by the shearing operation are absorbed by interlocking joints. The structure assures that there are no welded or bolted joints in the die housing in a position to receive the stresses resulting from the shearing operation. The shear comprises a three bolster arrangement wherein a hydraulic cylinder is positioned between a first end bolster and a center bolster and fitted into recesses provided in such bolsters. The die housing is positioned between the center bolster and the other end bolster and similarly fitted into recesses provided in those bolsters. Top and bottom plates are recessed and interfitted over the die retainer end plates to provide an interlocking construction eliminating the need for bolts and welds in the die housing. Such arrangement not only provides a strong stable unit, but also allows efficient access to the dies, such as for die changes.

Abstract: The present invention is concerned with a novel and improved cutting mechanism for slicing a flexible sheet that is being advanced endwise continuously to the cutting position. It is particularly advantageous in the slicing of textile materials that are formed continuously as in a carpet making machine, such as those produced by a non-woven bonding procedure described in U.S. Pat. No. 3,657,052.The present invention comprises an endless belt stretched about two sprockets. The cutting elements are secured to the belt at intervals therealong. Supporting guide means are positioned beneath the upper course or stretch of the belt to assure that the cutting edges of the cutting elements carried thereby follow a path lying in the plane of cutting extending transversely of the width of the sheet being sliced. Means is provided to drive the belt alternately in both directions so that these knives can be reciprocated in the plane of cutting.

Abstract: An elongated horizontal workpiece support is provided and an elongated lower support arm extends transversely beneath and is oscillatably supported, centrally intermediate its opposite ends, from the longitudinal central portion of the workpiece support. One end of the support arm includes an upright standard supported therefrom and projecting upwardly above the workpiece support. An upper support arm is secured at one end from the upper end portion of the standard and extends over the workpiece support and generally parallels the lower support arm disposed beneath the workpiece support. A depending mount is slidably mounted on the upper support arm for guided movement therealong and a powered rotary saw blade is journaled from a lower portion of the depending mount with the saw blade disposed in an upright plane containing the upper support arm.