Abstract: A cutting machine for cutting a window covering includes a machine base and a cutting device provided on the machined base. The machine base includes a sustaining face for putting the window covering thereon. The cutting device includes a frame provided on the machine base, a cutter, a movable block, a stopping block and a connecting bar. The control bar is pivoted on the frame and controllable to pivotally swing and drive the cutter to move up and down. The movable block is moved along with the cutter to drive the connecting bar to pivotally swing relative to the frame. The stopping block is adapted to abut against one end of the window covering to be cut and is further driven by the connecting bar to reciprocate along the machine base.

Abstract: A microtome method and apparatus includes a microtome blade configured to oscillate in a direction transverse to a direction of advancing a cut, and a first flexure to support and guide the blade. The first flexure is compliant in the transverse direction while being stiff in the cut direction. A second flexure operatively engaged at one end portion with the first flexure, is stiff in the transverse direction while being compliant in the cut direction. The other end portion of the second flexure is rotatably engaged by an eccentric driven by a rotatable actuator, which oscillates the blade in the transverse direction while effectively isolating non-transverse motion from the blade. The second flexure is configured to move independently of any guides or other stationary objects during oscillation.

Abstract: A cutting device includes a cutting blade configured to cut a recording medium; a support unit that supports the cutting blade to be movable in an inclined direction with respect to a surface of the recording medium such that the cutting blade is moved toward the recording medium while moving in a width direction of the recording medium; and a movable unit that causes the cutting blade supported by the support unit to be moved in the inclined direction to cut the recording medium.

Abstract: A paper cutter includes a base having a stationary blade; a fixing seat fixed to the base adjacent to one end of the stationary blade and having a connecting portion extending upward from the base, wherein the connecting portion is atop, peripherally formed with a plurality of teeth, and is formed centrally with a through hole for allowing a shaft to pass therethrough; a connecting element having a rotatory portion that is formed with a slot for allowing the shaft to pass therethrough and being atop provided with recesses for receiving the teeth; and a movable blade having a lower edge formed as a curved edge and having a front end fixed to the rotatory portion. Thereby, when the movable blade is pushed downward, the connecting element is driven to rotate and move along the teeth while approaching and sliding with respect to the stationary blade.

Abstract: In a_device for processing flat products using a processing tool which processes the product between the tool and a counter-tool, the processing tool is supported by an ultrasonic sonotrode. The processing tool performs a processing movement together with an ultrasonic sonotrode, wherein the processing movement results in a partial separation of the flat product.

Abstract: A whirling cutting device for use in flying saws has a tool accommodation and a ring-shaped whirling tool accommodated by it. The ring-shaped whirling tool is formed from at least two ring segments that have a positioning device on their side facing the tool accommodation. The positioning device on the ring segments corresponds with a positioning device disposed on the tool accommodation, thereby achieving centered placement of the ring segments relative to one another, as well as centering of the whirling tool in the tool accommodation. The positioning device can be in the form of an arc-shaped groove or ridge forming a circular segment.

Abstract: A device for chip-producing machining of work pieces in the form of pipes and rods, using the whirling method, has a whirling unit that has a housing, on which an accommodation for a whirling tool with teeth on the inside is mounted so as to rotate, and connected with an electromagnetic rotational direct drive. The drive has a ring-shaped stator attached to the housing and having an essentially C-shaped cross-section, and a rotor configured in the form of a ring-shaped hollow shaft having a T-shaped cross-section and provided with permanent magnets. The rotor is connected with the accommodation and is mounted on the outside of the C-shaped cross-section of the stator on its free shanks on both sides of the circumferential gap. The stator has a winding for generation of an electromagnetic field disposed between the free shanks and the closed rear wall of the C-shaped cross-section of the stator.

Abstract: An ultrasonic system and method for cutting soft material has an ultrasonic transducer that vibrates axially at least one horn blade having a serrated edge so that when the horn blade is moved into the food product being cut, it is vibrating in a direction in and out of the food product to make a plunge cut.

Abstract: The method and device for cutting fresh tissue slices utilizes a vibrating microtome. The vibrating microtome uses a cutting blade that vibrates in a horizontal direction. The microtome has a base, a specimen holder attached to the base, and a diagonal slide carriage and support arm that are supported on the base for movement diagonally with respect to the specimen holder. A vibrating blade support is located on the support arm and moves horizontally with respect to the specimen holder. A cutting blade is mounted on the vibrating blade support and moves in a compound diagonal and vibrating motion with respect to the specimen holder.

Abstract: A paper cutter includes a base having a stationary blade; a fixing seat fixed to the base adjacent to one end of the stationary blade and having a connecting portion extending upward from the base, wherein the connecting portion is atop, peripherally formed with a plurality of teeth, and is formed centrally with a through hole for allowing a shaft to pass therethrough; a connecting element having a rotatory portion that is formed with a slot for allowing the shaft to pass therethrough and being atop provided with recesses for receiving the teeth; and a movable blade having a lower edge formed as a curved edge and having a front end fixed to the rotatory portion. Thereby, when the movable blade is pushed downward, the connecting element is driven to rotate and move along the teeth while approaching and sliding with respect to the stationary blade.

Abstract: A device for chip-producing machining of work pieces in the form of pipes and rods, using the whirling method has a whirling unit with a housing, on which an accommodation for a whirling tool with teeth on the inside is mounted so as to rotate. An electromagnetic rotational direct drive has a ring-shaped stator attached to the housing with an essentially U-shaped cross-section, and a rotor configured in the form of a ring-shaped crosspiece provided with permanent magnets, formed onto the accommodation. The rotor is mounted within the U-shaped cross-section of the stator, on the housing side. The stator has a winding for generation of an electromagnetic field, on its inside shank of its U-shaped cross-section that lies opposite the housing.

Abstract: A pizza cutting apparatus and portions of the apparatus, and methods of forming the apparatus and of disassembly. The apparatus includes a simple frame assembly made from sheet metal, an actuator assembly and a cutting assembly. The cutting assembly includes a central hub, a number of attached blade and guard combinations, a shaft with a flange and an elastic band. Each blade includes two spaced apart openings, one to receive the flange and the other to be engaged by the band so as to restrain the blades mounted in the hub. Each guard includes perforations for easy gripping by an operator. A blade is removed by having the operator safely grip each guard to stretch the band so as to disengage the blade from the flange and then return and rotate the blade to disengage the blade from the band.

Abstract: A device for cutting tubular and rod-shaped work pieces using the whirling method includes a whirling unit on which a holder mounted so as to rotate, connected with a drive, for a saw blade having internal teeth is disposed. The holder and saw blade are provided with corresponding reference mechanisms for fixation of the saw blade in a defined position. The device also includes a mechanism for automatic replacement of the saw blade. A saw blade having internal teeth is also provided for use in this device. The saw blade has at least two indexing bores and at least two gripping openings, which are disposed offset relative to one another.

Abstract: A sheet cutting apparatus includes: a cutting blade for cutting an edge of a sheet bundle conveyed to a cutting position of the sheet bundle; a cutting blade moving section for moving obliquely the cutting blade with respect to a sheet surface of the sheet bundle; a fixed supporting table for supporting the sheet bundle in a vicinity of the cutting position; a blade receiving member for pressing the sheet bundle and receiving the cutting blade in the vicinity of the cutting position; and a blade receiving member moving section for ascending or descending the blade receiving member. A center position of a load application action of the blade receiving member by the blade receiving member moving section, is set to a position upstream of the sheet cutting position in a conveying direction of the sheet bundle, and in the vicinity of the sheet cutting position.

Abstract: A slide type cutting machine which conducts cutting work of a timber etc. more safely and can be stored compactly. A straight guide device (3) has a slide shaft (33) which moves in a direction orthogonal to the moving direction of a cutting part (4), a first slide holder (31) which guides movement of the slide shaft (33), and a second slide holder (34) which is provided at the lower end of the slide shaft (33) and abuts on the first slide holder (31) to control movement of the slide shaft (33). A linking means (5) has a first link (51) which has its one end connected with the cutting part (4) and the other end connected with the second slide holder (34), and a second link (52) which has its one end connected with the first slide holder (31) and the other end connected with the first link (51).

Abstract: A disklike cutting tool (10) comprises a disklike cutting blade (12) having a circular hole (11) in the center, an annular supporting plate (19) arranged on the surface on each side of the blade (12) coaxially therewith and supporting/fixing the blade (12) at a position on the inner circumferential side of the outer circumferential edge of the blade, and a continuous annular ultrasonic vibrator (14) secured to the surface of the supporting plate (19) coaxially with the blade at a position on the outer circumferential side of the inner circumferential edge of the supporting plate (19). The supporting plate (19) has an ultrasonic reflection plane (16) consisting of the interface with a continuous or discontinuous annular air phase space extending in the thickness direction of the supporting plate (19) at a position on the inner circumferential side of the inner circumferential edge of the ultrasonic vibrator (14).

Abstract: Fresh tissue slices can be cut from tissue specimens embedded in a low gel point agarose by the use of a vibrating, sliding-blade microtome. The microtome has a blade which vibrates in a generally horizontal direction and which is supported for movement in a generally diagonal, sliding direction with respect to the tissue specimen. The compound vibrating and sliding motion of the cutting blade of the microtome is very effective in cutting fresh tissue slices that have a slice viability, measured as a ratio of live to dead cells, which is much better than that which has been obtained using conventional vibrating microtomes.

Abstract: An apparatus for placing a mold charge into a cavity includes a pair of hubs mounted for rotation around parallel axes, a link connected between the hubs at positions off-center relative to the parallel axes and a blade connected to the link. Rotation of the hubs causes the blade to travel in an elliptical path relative to an extrusion orifice to cut mold charges from the orifice and place the mold charges into cavities passing beneath the blade. The apparatus preferably includes a drive member that simultaneously rotates both of the hubs to drive the blade relative to the extrusion orifice and cavities. The blade preferably includes an arm that extends into a cavity to place a mold charge into the bottom of the cavity for consistent and accurate placement of the mold charges from one cavity to the next.

Abstract: A trimmer including a common support frame and first and second cutting units movably mounted on the common support frame. Each respective cutting unit including a unit frame, a cutting strip connected to each respective unit frame, and a knife movably mounted on each respective unit frame for an oblique swing cut against a respective cutting strip. Each respective unit frame absorbing all cutting forces between the knife and the cutting strip during the oblique swing cut.

Abstract: A shear assembly for a roll forming machine which forms a rain gutter. A pair of coplanar blade members separated along a vertical line are caused to first move vertically downwardly, then have their lower ends pivot outwardly and, finally, have their upper ends pivot outwardly. The last motion is accomplished with enhanced mechanical advantage to cut through multiple layers of metal at the upper end of the gutter.

Abstract: In order to selectively reinforce portions of a material web, a cutting and laminating device efficiently produces the required reinforcing strips and then laminates them to the web. In order to efficiently and accurately produce these reinforcing strips, a cross web shear is utilized which is capable of cutting required reinforcing strips from the fairly large web of reinforcing material in an accurate manner. Once cut, a holding and positioning device is capable of grabbing onto the reinforcing strip and appropriately positioning it next to the primary material web. A separate laminator can then attach this reinforcing strip to the web at a desired location.

Abstract: A machine for piercing sheets of material with an adjustable apparatus, acting as a stop to the moveable cutting die thereby varying the amount of the punch pattern cut into a sheet of material being punched. The moveable cutting die is designed with a cutting surface so that the adjustable apparatus can vary the amount and pattern of that die cut by the cutting surface into the sheet of material. A frame holds the adjustable apparatus, the moveable punch cutting die and a hole aligned to the moveable cutting die with the hole allowing motion of the moveable cutting die. A slot in the frame extending partially through the frame accepts and restrains the sheet of the material. A hand actuated assembly activates the moveable cutting die moving the cutting die to where it contacts and cuts the sheet of the material in the slot.

Abstract: In an apparatus for cutting pattern pieces and creating apertures in sheet-type work material a frame has a support surface mounted thereon for carrying at least one layer of the work material. A carriage is coupled to the frame for movement back-and-forth there along a first coordinate direction in response to commands issued from a controller. A cutting head is mounted to the carriage and moves in a second coordinate direction along the carriage approximately perpendicular to the first coordinate direction. A rotary die is coupled to the cutting head and at least one cutting tool is mounted to the rotary die. The cutting tool includes a shaped cutting portion corresponding to the shape of an aperture to be formed in the work material. During operation the rotary die is movable between a working position wherein the cutting tool engages the work material and a non-working position wherein the rotary die is positioned away from the work material.

Abstract: A method of saw cutting relatively thin walled metal tubing in a relatively burr free fashion by causing the cutter blade to move through a path of travel which maintains an essentially tangential relative motion vector between the saw teeth and the tube wall at the place of engagement during some or all of the movement of the blade center around the tube center. Both ring blade and disc-type saws are disclosed and a two axis displacement system using digitally controlled ball screw actuators is provided.

Abstract: Cutter for cross cutting of reeled webs comprising a rotary cutting assembly including a blade and a counter blade rotated in synchronism with an advancement assembly of the web. The rotation axes of the blade and of the counter blade are displaceable relative to each other, perpendicularly to the web, and a gear actuator is provided to operate mutual approaching thereof when the blade and the counter blade are placed in a mutually facing angular position for cutting the web. The blade and the counter blade are rotated only at the time of cutting.

Abstract: The invention relates to a cutting device for products, in particular for cutting up foodstuffs. A blade driven by a drive shaft so as to rotate is provided which orbits a further drive shaft in a planetary path-like manner on a rotor driven by the further drive shaft. For a compact arrangement it is provided that the one drive shaft is designed as a hollow shaft and that the other drive shaft is guided therein.

Abstract: A top edge trimming cutter, a bottom edge trimming cutter and a front edge trimming cutter are arranged to have predetermined distances from one another so as not to cause mechanical interference. The top edge trimming cutter, a first table element, a first blade receiving plate and a first pressing plate pressing a bound material against the first table element are attached to a first frame element. The bottom edge trimming cutter, a second table element, a second blade receiving plate and a second pressing plate pressing the bound material against the second table element are attached to a second frame element. Relative movement of the first and second frame elements effects relative movement of the top edge trimming cutter and the bottom edge trimming cutter, relative movement of corresponding first and second blade receiving plates and relative movement of corresponding first and second pressing plates.

Abstract: An apparatus for cutting a material having prevalently two-dimensional extension into appropriately shaped portions, in particular for cutting a fabric or the like into shaped portions for the manufacture of clothing items or other items, comprising a support frame (12), means (22) for supporting said material (16), means for supporting cutting means (20). Said cutting means (20) are movable, relative to said material (16) according to trajectories suited for effecting longitudinal, transverse, or otherwise oriented cuts into said material (16).

Abstract: To simplify and reduce the necessary time of blade changing (4-6), every blade is attached to the connecting rods (15) which drive said blade without the interposition of a blade-holder. The setting of the cutting force with which each blade (4-6) presses on the counter-blade (7-9) is fixed by calibrating a maximum pressure hydraulic valve (30). In this way the cutting force exerted by each blade (4-6) does not exceed the optimal predefined maximum value for cutting all the sheets of paper, without damaging the counter-blades (7-9.

Abstract: The three-side trimmer comprises three compact cutting units of a nearly identical design, which have a flow of forces that is closed in itself and separate drives. Full-area cutting tables and pressing plates and telescopic cutting tables and pressing plates in the head-and-foot station ensure optimal quality of cut while avoiding the use of replaceable parts for format change. Due to elastic design and a slightly oblique positioning of the pressing plates, air inclusions are prevented from occurring during the pressing. A most lightweight design possible with weak dynamic forces to achieve good quality of cut are provided while avoiding the use of replaceable parts for format change.

Abstract: Rods are supported on the drive shaft by self-aligning roller bearings such to be able to pendulate. The rods are pivotally mounted to the ram by ball-and-socket joints. At the area of the ball-and-socket joints the ram is guided by upper ram guides. These feature a degree of freedom for a movement in a direction of the web advancing direction of a web to be worked upon. Therefore, the upper tools remain aligned with the lower tools when an eccentric force acts onto the ram.

Abstract: The present invention relates to a cutting tool assembly which can cut spring wires in either a vertical or a progress tilt direction in coil spring winding machines. This assembly uses a cam seat and a cam center guide seat for the cutting in a vertical direction. To do the cutting in a progressive tilt direction, the cam center guide seat is dismantled and the slide in the cam seat is fixed by screws. The cutting point can also be adjusted for the manufacture of special springs. This assembly provides a cheaper and an easy way for switching the cutting direction.

Abstract: The invention relates to a microtome having a blade oscillating transverse to the direction of advancing the cut, for sections on soft tissue samples. The oscillation frequency of the blade is controlled variably by the rotational speed of an electric motor. At the same time, the oscillation amplitude of the blade is also adjustable variably with the aid of an adjustable eccentric or a displacement device. This makes individual adjustment to the consistency of the tissue sample possible, which leads to improved quality of the microtome sections, in particular to a reduction in the waviness of the sections. This makes significantly thinner microtome sections possible, with corresponding advantages during microscopy.

Abstract: The cigar cutter (1) has a housing (2), an opening (3) adapted for insertion of a cigar or the end of a cigar, at least three blades (5), and a squeeze bar (6). When the cigar cutter (1) is squeezed, for example by the pressure of a single hand on the squeeze bar (6) and the side of the housing (2) opposite the squeeze bar (6), a mechanism translates the squeezing force into an irising movement of the blades (5). The mechanism includes rings (11), squeeze bar pins (15), and blade pins (21). The inside diameters of the rings (11) are less than that of the opening (3). Part of the end of the squeeze bar (6) protrudes into the housing (2) and is forked so as to sandwich the rings (11). Squeeze bar pins (15) extend from the rings (11) and pass through slots (17) in the forked end of the squeeze bar (6). By means of this arrangement, an inward movement of the squeeze bar (6) causes the rings (11) to rotate.

Abstract: A simple method and apparatus is provided for manufacturing raised-brim products in which the end of a continuous bar-shaped dough body is fed into an opening surrounded by a plurality of movable cutting members. The bar-shaped dough body includes a filling material enclosed within a cylindrical dough sheet. Each of the cutting members includes a slanted inner surface and a lower surface which meet at an acute angle to form an edge, and the lower surface includes a concave groove located adjacent to and extending along the edge. The cutting members are cooperatively moved such that the edges of the plurality of cutting members cut the bar-shaped dough body to form a separated portion which includes filling material exposed on an upper surface thereof, and such that the slanted inner surface pulls the dough sheet to close the cut end of the bar-shaped dough body.

Abstract: There is provided a device for sawing logs to a predetermined length which includes a log lead-in support member, a log support frame, a log cutting station and a log collection deck. The log support frame includes a front end, a rear end, opposite sides and supports a conveyor. An upwardly inclined conveyor moves a log lengthwise through the support frame to the log cutting station which includes a stop gate section, a sawing section, and a debris discharge conveyor. The stop gate section is positioned between the conveyor and the sawing section to set the log for proper timing into the cutting station and to align the butts when a plurality of logs is cut at the same time. A cutting station positioned at the front end of said support frame comprising a housing and a chain saw having a cutting bar on said support frame pivotally mounted to rotate 360.degree.

Abstract: An actuator apparatus (10) includes a transverse support structure (14) for guiding a transverse carriage (16) therealong, with the carriage being powered by a remotely located rotational actuator (20) through an endless belt (80) secured to the carriage (16). A second carriage (26) moves along a longitudinal support structure (24) cantilevered transversely from carriage (16). The second carriage is powered by a remotely located second rotational actuator (28) acting through a second endless belt (150). A working tool (30) is mounted on the second carriage (26) for high speed bi-directional movement.

Abstract: A wire rope cutter machine has at least a first and pair of jaws for holding the rope to be cut taut and a cutting blade for cutting the rope. The cutting blade has a "V"-shaped cutting edge and the bottom jaw of the first pair of jaws has a "V"-shaped edge which is off-center and displaced from the middle of the "V"-shaped edge of the cutting blade to permit a four-edge pivoting cutting process.

Abstract: A cutting device capable of obtaining high speeds, approximately three times faster than known cutting devices by using a structure employing an internal positive cam. A rotary slider rotates upon rotation of a spline shaft via a gearbox, and the operation is such that a track of a wedge-shaped blade tip of a male cutter lies along a workpiece via cam followers slidably rotating over a sliding surface of an internal positive cam, cutting the workpiece.

Abstract: A tool including two flat parallel flanges (2 and 3), defining between them a space (4) which corresponds to the thickness of a cutting blade (5) and including two symmetrical slots which have profiles that are roughly identical to that of a gutter (7) so as to constitute a guiding cradle for cutting the gutter by operation of the cutting blade (5) between flanges (2 and 3). The guiding cradle is defined by slots delimited in an upper zone by a convex contour (6b) of a fixed part of the flanges, and in a lower zone by the concave contour (6a) of a movable part, so that a movable part can be articulated at one of its ends around a fixed axis of rotation (8) like a jaw (9) in the open position (0), to allow free passage of the gutter (7) and in the closed position (F) constitutes a fixed support for cutting.

Abstract: A cutting mechanism for a printing apparatus is described. The cutting mechanism is particularly suitable for tape printers. In the cutting mechanism, one of a cutting blade and an anvil is mounted for rolling motion with respect to the other so that as the rolling motion occurs a cut is made through the tape. Moreover, the cutting mechanism can be actuated by a handle which lies flush with the printer casing and which can be actuated externally of the casing.

Abstract: The housing of the reciprocating saw includes rectilinear guide bars mounting a drive block for reciprocating movement by the motor of the power tool. The drive block has a recess defining arcuate cam surfaces. A blade clamp has a cam follower engaging the arcuate cam surfaces of the drive block. When the blade engages the work, relative movement between the cam follower and the arcuate cam surfaces on the drive block causes orbital movement to be imparted to the working end of the saw blade. Means are provided for clamping the blade holder to the drive block in two different positions. This clamping deactivates the orbital mechanism and permits the blade to be locked in two different cant positions relative to the axis of reciprocation of the drive block.

Abstract: A stack of folded and glued corrugated paperboard boxes is slit in unison with a thin cutting blade having a linear cutting edge disposed parallel to the plane of the boxes and moved through the stack in an angular direction to slit essentially one box at a time. The stack is squared before slitting to align the box edges, however, the force of the blade on the stack as it moves therethrough holds the receding stack together such that the cut halves of each box may part laterally as the blade passes therethrough to avoid any crushing of the corrugated paperboard media.

Abstract: A chain merchandising apparatus includes a frame, a cabinet secured to the frame, and chain support means mounted to the frame and located within the cabinet for supporting a plurality of chain containers. A chain cutter is moveably fixed to the apparatus so as to be facilely and safely selectively adjustable vertically and horizontally in relation thereto for permitting a user to position the chain cutter substantially adjacent to a preselected chain container supported on the chain support means.

Abstract: A method and apparatus for cutting corrugated webs having louvers from a strip which is continuously formed to define undulating fins or corrugations extending transversely of the strip. The method and apparatus comprises periodically interrupting the movement of the corrugated strip, locating the strip, and severing the corrugation along an apex by moving a shearing cutting blade such that the blade is moved to engage and cut beginning at one longitudinal edge and progressively across the apex of the corrugation to the other edge of the corrugation. The apparatus functions to lift the knife blade initially to separate the corrugation thereby moving louvers out of contact with one another such that the louvers would not be severed by the movement of the knife blade.

Abstract: An improved apparatus for cutting an enveloped body, which consists of an assembly having at least three circumferentially disposed cutting members, each cutting member having at least two sliding surfaces. The cutting members are assembled in sliding contact with each other such that the sliding surfaces of adjacent cutting members are slidable along each other so as to form or close a central opening surrounded by the cutting members. The opening is opened and closed for cutting the enveloped body passing therethrough. One sliding surface of a cutting member forms a convex surface, and the other sliding surface forms a concave surface complementary to the convex surface, so that the convex surface of a cutting member slides on the concave surface of an adjacent cutting member.

Abstract: A sheet slicing mechanism includes a rigid frame member supporting a stepper motor coupled to a drive gear. A rotatably supportable rotary member includes a driven gear coupled to the drive gear and is rotatably supported upon the frame. A blade frame having a generally cylindrical configuration is received within the rotary member and is freely movable in the vertical axis. The blade frame supports a cutting blade and a cutting force weight. The rotary member defines a vertical slot which cooperates with an outwardly extending pin in the blade frame to permit the blade frame to be vertically movable with respect to the rotary member while locked thereto as to rotational motion. A solenoid activated lifting means is supported upon the frame and is operable to raise the blade frame to a noncutting position.

Abstract: A cutting apparatus for cutting material into a desired shape has a first travelling member and a second travelling member which are arranged on a holding stand, on which the material to be cut is placed, and which approach and separate from each other. A cutting tool for cutting the material is mounted on each of the first and the second travelling members so as to be movable in a direction that is perpendicular to the travelling direction of each travelling member. Movement corresponding to a cutting profile required for the cutting tool to cut the material to a desired shape is imparted by controlling the first travelling member and the second travelling member and the cutting tools mounted on both travelling members. In addition, such a cutting process can be carried out by driving a numerical control to spread the cutting tools mounted on both travelling members in a laterally symmetrical relation so that an annular portion can be cut to produce shaped articles.

Abstract: In a hoop material cutter having a movable blade driven by an eccentric cam to effect swirl or rocking motion of the movable blade, the hoop material is fed in a direction opposite to the moving direction of the movable blade. The space between the movable blade and the housing is enclosed, and the feeding hopper for feeding the hoop material is mounted to undergo movement with the movable blade.

Abstract: A mortise and bevel cutter (10) includes a base (11) and a table (12) mounted thereon for rotation. A platform (22) is mounted for pivotal movement on table (12). A cutter assembly which includes a blade holder (40) and blade (45) is mounted on a handle (29) in a position to cut molding which is positioned on platform (22). A cut having a desired angle can be made by adjusting the position of the table (12) and the platform (22) to variable positions. A wedge (19) is mounted to move progressively under the platform (22) in order to position it securely at any desired angle.