Abstract: A saw blade having two or three blade members immovably coupled to each other, and having a plurality of coolant passages grooved on the interior of the blade members. The passages communicate with coolant inlet ports and terminate at openings located at the root peripheral side of the blade cutting edges. The saw blade releases coolant from itself which not only cools the blade members but also blows cut material from the blade cutting edges thereby facilitating a cutting operation being performed on a workpiece.The saw blade may be utilized with a coolant feeding apparatus, having distributors which are rotatably driven and connected with stationary feeding pipes, the pipes having axial channels communicating with the coolant inlet ports of the saw blade.

Abstract: An apparatus for cutting limp sheet material with a rigid, cantilevered blade that is reciprocated as it advances along a cutting path through sheet material employs a load sensor to measure lateral loads applied to the blade by the sheet material during cutting. A load signal from the sensor is applied to the blade controls through a variable gain feedback circuit and causes the blade to be oriented slightly toward the side of the cutting path from which an unbalanced load is applied. The adjustment of the gain in the feedback network is made by means of speed sensors which measure the rate at which the cutting blade advances through the sheet material and adjust the feedback gain in inverse relationship.

Abstract: The present invention provides, in a meat slicer comprising a circular blade rotatable vertically on one side of the machine frame, a meat case whch travels forward and backward horizontally on the machine frame along the plane of rotation of said circular blade and lower and upper conveyor apparatus provided on the top and bottom parts of said meat case so as to hold therebetween a block of soft and shapeless meat and force it toward said circular blade to be sliced in desired uniform thickness ranging from several millimeters to 30 millimeters continuously, a structure for the meat case and a mounting device for a driving mechanism to facilitate cleaning of the machine before and after operation and insure effective sanitary control.

Abstract: A punch for a cutting die is provided for forming holes in corrugated board or the like. The hole punch includes a tubular metal member of circular transverse cross section having one end substantially flush with the back surface of a die plate in which it is mounted and the other end extending beyond the front surface of the die plate and terminating in a circular cutting edge. A body of resilient material, such as natural gum rubber or latex, is located within the cylindrical member and has one end terminating near the back end of the tubular member and another end terminating near the cutting edge of the tubular member. The purpose of the body is to eject and strip the scrap of corrugated board from the punch and from the rest of the blank being formed by the cutting die. The resilient body has a central, cylindrical passage extending completely therethrough, in a preferred form.

Abstract: The invention relates to methods and apparatus for making rings from tube stock (10) by a part-off rolling tool (12,15) which is advanced radially into the tube stock to form successive rings, e.g. annular blanks for subsequent roll forming into bearing rings. The tube stock is indexed forward after separation of each ring. Errors in the length of tube stock indexed forward each time are contained by forming a locating groove (47) on the tube stock by means of a groove-rolling tool (40) set at an appropriate axial distance from the part-off rolling tool (12) and moved radially with it. In the next cycle the groove (47) automatically centers the part-off tool as the latter begins its advance into the tube stock, so as to give the correct axial length of the finished ring. The part-off tool is stopped before fully penetrating the tube wall, which is then machined. Final separation takes place during this machining or in a subsequent finishing pass by the part-off tool.

Abstract: In continuously blanking a coiled metal sheet, an operator rapidly detects parts of welded connection of a metal sheet without any manual touch of the metal sheet, removes the parts of welded connection and restarts the apparatus for blanking the metal sheet.

Abstract: A system for the production of dipped taper candles, including an overhead conveyor system supporting mobile carrier racks for formation of the candles in suspended relation from the rack, and including a wicking station for providing rows of candle wicks in generally tensioned suspended relation from a carrier rack, a dipping station for automatically dipping said wicks on the rack through a predetermined number of dipping cycles, a cutoff station for cutting off the bases including the wick tensioning weights of the candles suspended from the carrier rack, a butt forming station for heat forming the cut butt ends of candles suspended from the carrier rack, and a cut down station for expeditiously cutting down the carrier rack rows of the candles formed on the candle wicks and for collecting the same for further processing. The invention also provides a novel method of producing plysically uniform candles in mass production batches.

Abstract: Apparatus for cutting a conduit or tubular element transversely to the longitudinal axis thereof which includes a base having a housing projecting vertically therefrom. The housing includes opposed, substantially parallel side plates separated by a vertical slot at their upper ends, and by a mechanism chamber at their lower ends. A blade element is pivotally supported between the parallel side plates, and carries a plurality of ratchet teeth along the lower peripheral edge, and a cutting edge disposed at the opposite side of the blade element from the ratchet teeth. Between the teeth and cutting edge, the knife element has an elongated, arcuate slot formed therethrough. An operating handle is pivotally connected to the housing at a side thereof spaced from the pivotal axis of the blade element. A pawl lever is pivotally connected to the operating handle and has a dog thereon positioned to ride over and operatively engage the ratchet teeth as the operating handle is pivoted.

Abstract: A method for cutting and maintaining in separate segments a gummous comestible, comprising the steps of: (a) positioning a disk-like template above the comestible, the template having a plurality of radiating extending slots; (b) positioning a cutting tool above one of the slots; (c) folding a sheet of wax-like material over the cutting edge of said tool and about both sides thereof; (d) simultaneously holding each side of said wax-like sheet against the sides of the tool and pressing said closely held sheet and tool into the gummous comestible; (e) withdrawing the cutting tool while permitting the material, as a result of the friction and surface tension of said gummous comestible thereagainst, to remain in the gummous comestible; and (f) repeating each of the above steps for each of the radiating extending slots of the template through which a corresponding cut and placement of the wax-like sheet material is desired, whereby a separation into segments, in accordance with the relative position of each of the

Abstract: A web severing device has a pair of spaced-apart carriages straddling the path of the web, a severing blade being attached to one of the carriages. Power apparatus are provided for moving the carriages toward each other to bring the blade into severing contact with the web. Resilient apparatus are provided to prevent activation of the severing blade if a relatively rigid foreign object such as a human finger is accidentally embraced between the carriages and to prevent injury. When only the web is disposed between the carriages a portion of the resilient apparatus also functions to urge the blade-carrying carriage into web severing contact.

Abstract: A rotary die cutter is provided having a knife cylinder, provided on its peripheral surface with a punching blade, and an anvil cylinder around which is wound an anvil against which the punching blade is urged in punching material from cardboard passing between the knife cylinder and the anvil cylinder. The cylinders are driven by meshing gears disposed at the ends of the cylinders and having different numbers of teeth. A pair of helical gears are disposed at one end of the anvil cylinder. One of these helical gears is attached to the anvil cylinder and the other is connected to one of the meshing gears. A mechanism is provided for causing axial movement of the anvil cylinder. This axial movement is converted into rotational movement of the anvil cylinder by the relative movement of the helical gears.

Abstract: A ram driven tube cutting apparatus of the double cut type in which sections of tubing are successively severed from a continuous length thereof by a notching cut followed by a severing cut, includes improved mechanism for clamping the tubing during the cutting process. A pair of opposed, complemental die jaws are mounted on slides controlled by spaced cam followers carried by the slides. A reciprocating wedge cam engages and forces the cam followers apart to move the slides thereby closing the jaws on the tubing. One of the cam followers comprises a roller mounted on an eccentric shaft which may be selectively rotated to adjust the clearance between the die jaws. The other cam follower is spring loaded toward the cam within a slide mounting provided in its slide and automatically shifts to an overload position to avoid damage to the mechanism when foreign objects become lodged between the die jaws.

Abstract: A guard for the circular saw blade of a circular sawing machine whose sawing unit has a horizontally supported saw spindle and is disposed on a frame of the machine so as to be vertically movable, the guard being arranged to cover the circular saw blade from above and at least partially on an accessible end face thereof and on the circumferential portion on an operating side, the guard forming a housing arranged to be mounted on the machine frame so as to be fixed relative to the circular saw blade and being open at its bottom only and, in its starting position, completely accommodating the circular saw blade, a downwardly extending elongate opening being disposed in a side wall of the housing to accommodate the saw spindle and being associated with a covering element arranged to move between a covering position, in which the covering element covers at least one region having disposed therein the circumference of the circular saw blade and being associated with the part of the elongate opening disposed beneat

Abstract: A base defining an upwardly facing sheet supporting surface and an elongated support member is mounted on the base and projects upwardly from the sheet support surface. The support member includes spacer structure spacing portions of the support member from the base to define an open slot between the base and the spaced portions of the support member. A pair of aligned support blocks are supported from the support member above the opposite end portions of the slot and an elongated head extends between and is removably journaled from the support blocks. The portions of the support member spaced above the base define upstanding sleeve bores therein normal and opening into the slot and bearing sleeves are mounted in the sleeve bores and have elongated punch members reciprocately disposed therein. The base defines die bores below the slot and opening into the latter aligned with the sleeve bores. Die sleeves are disposed in the die bores.

Abstract: A unitary punch and die assembly wherein the stripper spring for the punch comprises a fluid cylinder which communicates with a gas reservoir formed integrally with the punch and die holder and which is adapted to be charged with gas to a predetermined pressure so as to obtain a desired stripping force on the punch. The hold down sleeve on the punch is preferably also actuated by a fluid spring to obtain a preselected clamping force on the stock being punched.

Abstract: A guide bar is detachably clamped to the panel being cut with a pair of guide plates extending therefrom and registering upon the line to be cut. The guide bar is provided with a longitudinally extending slot or groove into which is engageable a guide block for longitudinal movement therealong. A power saw is detachably securable to the guide block which guides the saw blade along the line to be cut. The guide bar includes an underside clamp and spacer bar which spaces the panel above the supporting surface sufficient to give clearance to the underside of the saw blade as the panel is being cut.

Abstract: A cutting tool arrangement for performing the process of opening up the slit cut in the workpiece by circular saws before the saw is retracted to facilitate removal of the saw. The workpiece being severed is moved perpendicular to the cutting plane as is the saw blade to accomplish the desired result.

Abstract: This invention relates to an apparatus used to form various size chimney chases which utilizes a metal spinning machine in a manner to form and configure a sheet of metal into the desired configuration and dimensions.

Abstract: A deviation detecting apparatus for a bandsaw blade in a bandsaw machine has an arm pivotally mounted at a location adjacent to the linear path of travel of the blade through the cutting zone. The arm is yieldably urged into slidable contact with one side of the blade, and is thus pivotally movable in response to lateral deviations of the blade. A control device is responsive to pivotal movement of the arm. The control device generates a control signal indicative of blade deviations.

Abstract: A device for feeding, adjusting and cutting a continuous web in predetermined zones to obtain portions is described. The device comprises periodically cutting apparatus, apparatus for feeding the web to said cutting apparatus, and a device for detecting at least one reference mark for the zone on the web. The main characteristic of the device is to comprise first device for checking the position of the predetermined cutting zone relative to a cutting apparatus and to quantify any diversity between the two zones, and second apparatus driven by the first device for controlling and correcting any diversity relative to each portion cutting operation, to act on the feed device and/or on the cutting apparatus in order to eliminate any diversity relative to each portion cutting operation.