Abstract: The present invention relates to a method of adjusting a flow rate sensor 52 for measuring a travel time of a sample passing through a resistive body. The flow rate sensor 52 includes a straight tube 56, and plural photo sensors 52A to 52E for detecting interfaces 82A, 82B between a gas 80 and a liquid 81 traveling in the straight tube 56. Respective positions of the plural photo sensors 52A to 52E are adjusted by detecting the interfaces 82A, 82B by using such photo sensors 52A to 52E.

Abstract: The present invention provides a method of measuring the flow rate of an electrically conductive liquid in laminar flow and to an implementation measurement device that are easy to implement, simple to produce and compact. For this purpose, the invention provides a device for measuring the flow rate, comprising: a channel (1); a pair of electrodes (2a-2b); and at least one device (3) for measuring the voltage (V) between the electrodes (2a-2b) of said pair, an electrical double layer forming at the interface of each electrode with the conducting liquid. The device comprises means (4, 5) designed so that, when the conducting liquid is flowing through the channel, the flow velocity fields in the diffuse layers facing each electrode are different and so that the convective/diffusive charge equilibria of the electrical double layer at the interface of each electrode are different.

Abstract: Measuring system (1) for determining and/or monitoring flow of a measured medium (25) through a measuring tube (2), wherein the measuring system (1) includes: At least one control/evaluation unit (8), which, based on ultrasonic measurement signals, or based on measurement data derived from the ultrasonic measurement signals, ascertains volume, and/or mass, flow of the measured medium (25) flowing in the measuring tube (2); and a sensor housing (3), which surrounds a first ultrasonic sensor (5) and at least a second ultrasonic sensor (6); wherein at least the first ultrasonic sensor (5) is seated shiftably in the sensor housing (3); wherein the measuring system (1) further includes a sensor holder (4), which is securable on the measuring tube (2) and includes a securement mechanism (9) for the releasable securement of the sensor housing (3) on the sensor holder (4); wherein the sensor housing (3) forms with the ultrasonic sensors (5, 6) a unit securable on the sensor holder (4) and releasable from the sensor h

Abstract: Charge information associated with an energy storage device may be determined from one or more kinetic responses of the energy storage device. Kinetic responses may include displacements, forces, pressures, or other kinetic properties, and changes in properties thereof. An indication device, such as a sensor, transducer, or other device, may be used to indicate kinetic responses. Charge information, measurements, or both, may be derived from indications of kinetic responses. Charging or discharging of an energy storage device may be controlled based on charge information.

Abstract: An apparatus for measuring load acting on pipe supports, the apparatus including a load cell which includes a contact portion contacting a pipe, and a measuring portion for measuring load acting from the pipe; and a gap sensor which measures a gap between the pipe support and the pipe, which is generated by a movement of the contact portion, wherein the load acting on the pipe support is measured based on the load measured by the load cell and the gap measured by the gap sensor.

Abstract: A method and system of a capacitive sensor based structure and method with tilt compensation capability is disclosed. In one embodiment, a sensor includes, a series of nested cantilever beams (e.g., may face each other in alternating form such that each subsequent cantilever beam is inside and oppositely facing a respective outer cantilever beam) in an upper surface of a tilt correction assembly, a spacer coupled to a contact zone of a lower surface of the tilt correction assembly, and a first conductive surface and a second conductive surface substantially parallel to the first conductive surface, wherein the spacer to cause at least one of the first conductive surface and the second conductive surface to deflect when a force is applied to a force measuring assembly above the sensor.

Abstract: There is provided a pipette device adaptable to a decrease in diameter of a pipette main body and costing lower. A pipette device 1 in which a plunger 3 is inserted in a cylinder portion “a” of a pipette main body 2 to be movable in an axial direction and the plunger 3 is moved to change a cylinder volume includes seal ring portions 15c, 15d formed on and integrally with one of an inner peripheral surface of the cylinder portion “a” and an outer peripheral surface of the plunger 3 to seal a gap between the cylinder portion “a” and the plunger 3.

Abstract: An apparatus and method for applying reagents to tissue mounted on slides, in the field of histology is disclosed. The apparatus holds a number of slides, in slide trays, which are loaded onto the apparatus. Each slide tray forms a batch of slides, with all the batched forming a group. The apparatus holds a number of reagents, grouped into a first group comprising bulk type reagents, and a second group comprising antibodies or probes, and detection systems, for identifying elements of the tissue. A group fluid dispenser, in the form of a robot arm, dispense reagents to the group of slides. Each batch of slides has its own batch fluid dispenser to dispense reagents onto the batch of slides. In on embodiment, the group fluid dispenser dispense antibodies, probes, detection reagents to all slides depending on the protocol defined for each slide, and the batch dispensers dispense bulk reagent to each batch, thus freeing the group fluid dispense from dispensing bulk reagents to all slides.

Abstract: A cannula (10) for use in removing samples of fluid from a container sealed with a pierceable membrane, the cannula including a hollow needle like portion (12) having a pointed forward end (20) shaped to allow forcible penetration through the membrane, the rear end (14) having a first bore (26) and an insert (40) located within the first bore (40) that reduces the effective size of the first bore (26) without blocking the first bore (26).

Abstract: The present invention provides for an apparatus for testing a surface coating. An elongated tube having a first end and a second end is provided wherein said second end is open to a holding container. The first end of the elongated tube farther includes a funnel. A planar test panel is adapted to hold a variety of materials to be tested. Such materials include paint, coatings, tape, or other like materials. A separator is fluidly connected to the holding container via a first conduit. A vacuum is fluidly connected to a separator by means of a second conduit. A tester places a plurality of loose test pieces, such as metal nuts or small rocks, into the funnel and the loose test pieces fall through the elongated tube and onto the planar test panel. The loose test pieces then fall into the holding container.

Abstract: A penetration device (1) for driving a tool (2), such as a soil probing or sampling tool, includes a cylindrical tube (3), a first piston (4) and a second piston (5), both fixedly arranged with a piston rod (6) and slidably displaceable through the cylindrical tube (3), and partitioning means (7) for forming a partition between a first chamber (8) and a second chamber (9). The first piston (4) and the second piston (5) and the tube (3) and the partitioning means (7) together define the first chamber (8) and the second chamber (9).

Abstract: An output shaft, to which the rotational force of a motor is transmitted, is rotatably supported and housed in a case. One end of the output shaft protrudes from the case, and a pinion gear is provided on this one end. Teeth that mesh with the pinion gear are provided on the outer circumferential surface of cables. A guide member for guiding the cables in such a way that they mesh with the pinion gear is mounted on the case. An urging plate portion that presses against the side of the pinion gear is provided on the guide member. The urging plate portion urges the output shaft in the axial direction and, as a result, rattle of the output shaft is alleviated.

Abstract: The invention relates to a drive device (20) for entrance/exit devices for public transit vehicles, comprising a drive unit (22) disposed in and driving a column (24) that rotates about an axis of rotation Z-Z during opening and closing operations, said column opening and closing an entrance/exit device. The drive unit (22) is supported in the vehicle by way of a support component (40) and the support component (40) acts as a counterbearing for a torque of the drive unit (22). A coupling device (72) is disposed between the drive unit (22) and the support component (40), said coupling device facilitating a rotation of the drive unit (22) about the axis of rotation Z-Z when a limit of the torque acting on the drive unit is exceeded.

Abstract: A swash plate 3 includes an substrate 11 made of an iron-based material, a hard first resin layer 12 provided to coat an end surface of the substrate 11, and a soft second resin layer 13 provided to coat the first resin layer 12. A spiral annular groove 12A is formed in a surface of the first resin layer 12, and the second resin layer 13 is provided to match a sectional shape of the first resin layer 12. With the soft second resin layer 13 on a sliding surface 3A of the swash plate 3, the swash plate 3 having a good fit in an initial stage of sliding can be provided. When the second resin layer 13 partially wears, a protrusion 12 of the first resin layer 12 of hard resin is exposed, and thus the swash plate 3 having good wear resistance can be provided. The swash plate 3 having good sliding properties can be provided.

Abstract: A transmission assembly for a rotary piston and cylinder device, comprising a first gear (120) and a gear sub-assembly (15, 16, 17, 18, 19), the first gear connectable to a rotatably mounted shutter (12) of the device, and the first gear extending from a side of the shutter, and the first gear connected to the gear sub-assembly which converts rotation to an axis of rotation different to that of the shutter.

Abstract: The conventional pedal crank drive from DE 43 11 404 C2 has second crank arms (2), connected to the outside of the first crank arms (1), by means of a rotating joint (3) and each comprises a pedal (5), with adjustable angular inclination. Said drive system has the problem that the extended pedal crank unit does not have the required stiffness before the bottom deadpoint to convert the full pedal traction force into torque. According to the invention, said problem is overcome whereby a carrier plate (4) is arranged on the first crank arm in the vicinity of the rotating joint (3) with an angular adjustment and a ratchet mechanism (7) is arranged on the second crank arm, such that the rotating joint is periodically locked in the region of the bottom deadpoint and hence a double length rigid force arm is formed, whereby the pedal traction force is ergonomically converted into maximum torque with the large radius from A to B.

Abstract: A high torque limited angle compact and lightweight actuator that comprises a driven pulley (11), a flexible tie-member (6), which is wound about the driven pulley (11), a linear actuator (7) and an inversion mechanism (8). In particular, the linear actuator (7), which is located with respect to the driven pulley (11) such that the direction is substantially tangent to it, comprises a movable element (10) that carries out a linear movement along a line according to two opposite directions (10?), (10?). The inversion mechanism is such that when an input portion (8?) moves along a line (first straight line), tangential to the driven pulley, of a certain an amount a output portion (8?) moves along another line (second straight line), which is also tangential to the driven pulley, for a same movement amount, such that the total length of the tie-member (6) is unchanged. (FIG.

Abstract: In one aspect, a cradle system for supporting a load, the cradle system comprising a first arm with a first carriage assembly axially adjustable therealong and a second arm, opposite the first arm, with a second carriage assembly axially adjustable therealong. An actuator is associated with the first and second carriage assemblies and configured such that actuation of the actuator causes the first and second carriage assemblies to move axially in opposite directions. In another aspect, a cable support system comprising a support column and one or more tethers supported by the support column and configurable so that at least one tether is configured to move its supported cable in the same or opposite direction as the test head moves at a rate that is a constant multiplied by the test heads rate of motion where the constant may be greater than, equal to, or less than one.

Abstract: Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.

Abstract: A feed screw mechanism includes a feed screw shaft connected to a drive source and formed with first screw threads on an outer circumferential surface thereof, and a displacement nut, which is screw-engaged with respect to the feed screw shaft through a plurality of balls. The displacement nut is supported with respect to a slider that makes up an electric actuator by a pair of pins. The pins are inserted and fixed in first pin holes formed in the slider, and distal end portions of the pins are inserted respectively into second pin holes formed in the displacement nut.

Abstract: A height-adjustable actuation device comprises a drive for height adjustment of the actuation device; a casing having a longitudinal axis; a hollow spindle arranged in the casing for displacement of a first lid arranged on the hollow spindle along the longitudinal axis; an internal spindle arranged inside the hollow spindle for displacement of a second lid arranged on the internal spindle along the longitudinal axis, with the hollow spindle and the internal spindle being non-rotatably connected to each other in terms of a rotation about the longitudinal axis, and with the hollow spindle and the internal spindle being displaceable relative to each other along the longitudinal axis.

Abstract: A drive actuating a flap pivotably supported in or on an automobile, in particular actuating a fuel tank flap, comprising a push-push kinematics cooperating with one side of the flap, said push-push kinematics exhibiting the following features: a housing suitable for integration into an automobile, a pushbar supported in axially displaceable manner in the housing and which in all its axial positions partly projects through a housing aperture (34) out of the housing and which comprises an external actuating end cooperating the flap, a spring in the housing prestressing the pushbar to project from the housing, a rotatable ring which encloses the pushbar and which is supported in the housing in axially fixed manner at the outside of the pushbar, at least one groove running parallel to its axis and at least one protrusion at the inner circumference of said ring to engage said groove over a wide adjustment range of the pushbar, as a result of which the ring retains its rotational position in said range of the g

Abstract: There is provided a double clutch for connecting a crankshaft of an engine to one of two input shafts of a gearbox for engine torque transmission. The double clutch includes, but is not limited to a first clutch for selectively connecting a first input shaft of the gearbox to the crankshaft, a second clutch for selectively connecting a second input shaft of the gearbox to the crankshaft, and an actuator coupled to both the first clutch and the second clutch. The actuator is operable to move the first clutch and the second clutch between a default position and an activated position. In the default position, the first clutch connects the first input shaft to the crankshaft while the second clutch disconnects the second input shaft from the crankshaft. In the activated position, the first clutch disconnects the first input shaft from the crankshaft while the second clutch connects the second input shaft to the crankshaft. The crankshaft is always connected to one of the input shafts.

Abstract: In a shiftable twin gear for a twin-clutch transmission and a twin-clutch transmission, to reduce the effort and costs involved in bearing-mounted idler gears, and in order to provide a simplified twin-clutch transmission a bearing sleeve which is non-rotatable with respect to a first gear body and which has a first bearing region for the bearing support of a second gear body is in the form of a separate component which is press-fitted to the first gear body.

Abstract: The a divided toothed wheel having two toothed wheel halves which are tensioned in relation to each other is provided. The first toothed wheel half includes a hollow cylindrical collar with a groove, to which the second toothed wheel half is secured in a form-fitting engagement by a securing element inserted into the groove. The divided tooth wheel takes up a minimum amount of space from the axial direction and has two halves which are permanently connected together. The second toothed wheel half has a radially extending recess and the securing element is designed as an elastically shapeable ring which is arranged in a receiving chamber defined by the groove and the recess and the two toothed wheel halves are permanently joined together.

Abstract: In a shift lever device, even when a magnet is immovably installed, the shift lever device can shift a shift lever between blocking and allowing operation from a “P” shift position to an “R” shift position because a first link and a yoke plate are slidable, a second link is rotatable with respect to the first link, and the magnet switches between attraction and non-attraction with respect to the yoke plate. For this reason, the magnet can be immovably installed.

Abstract: A manual valve is formed with a drain input port that closes if a shift is made to the D position, and opens for draining if a shift is made to the N position. A switching valve communicates an output port of a pressure regulating valve portion and an oil passage of a clutch and closes a drain port during engine operation when a line pressure is applied, and cuts off communication between the output port of the pressure regulating valve portion and the oil passage of the clutch and communicates the oil passage with the drain port during an engine automatic stop when the line pressure is not applied. The drain input port and the drain port are connected by a drain oil passage.

Abstract: An elongate robotic arm comprising articulated segments and a channel that extends along the longitudinal axis of the arm and contains a stiffening member which includes a sensor for measuring the shape of the arm. Using the central channel for this purpose improves the ease and accuracy of shape measurement.

Abstract: A steering column locking device. More specifically, a steering column locking device for golf carts, and the like.

Abstract: A bottom bracket, which has a shaft, a first pedal crank, which is connected in a rotationally fixed manner to the shaft, a second pedal crank, which is connected in a rotationally fixed manner to the shaft, and a chainring carrier, which is connected to the shaft. The object of providing a bottom bracket with a chainring carrier that is easy to assemble is achieved by the chainring carrier being connected in a rotationally fixed manner to a chainring shaft and by the chainring shaft being connected in a rotationally fixed manner to the shaft.

Abstract: The invention relates to methods of precious metals recovery from raw materials containing chlorides of earth metals, for example slimes. This method comprises the steps of cinder processing carried out in two steps. At the first step, a secondary enrichment by water washing is carried out with a ratio (S:L) ranging from 1:0.7 to 1:2.5. Then, at the second step, the washed cinder is leached by hydrochloric acid with a ratio (S:L) ranging from 1:2 to 1:3.

Abstract: The invention relates to methods of precious metals recovery and may be applied to the recovery of precious metals from mineral raw materials containing chlorides of alkali and earth metals, e.g. slimes of potassium production. The method includes the following: excessive chlorides and water are separated from the slimes containing precious metals and chlorides of alkali and earth metals, after which the slimes are forwarded to drying and roasting at the temperature of 850-950° C., and then the cider is leached by diluted solution of hydrochloric acid. The precious metals are recovered from the produced pulp by sorption with the help of resin (e.g. AM-2B).

Abstract: Nickel is recovered from a nickeliferous ore, where the ore includes impurities in the form of metals other than nickel and cobalt. The ore is subjected to atmospheric leaching using sulphuric acid to dissolve nickel and cobalt from the ore and produce a leach liquor. The sulphuric acid is regenerated by rapidly heating the leach liquor to a temperature in excess of 120° C. to produce a slurry including sulphuric acid and precipitated oxides of impurities present in the leach liquor, and separating the precipitated oxides from the slurry to produce a clarified acid rich liquor stream for recycle to leaching.

Abstract: A method of manufacturing a drill bit having a bit body and a plurality of blades extending radially from the bit body is disclosed, wherein the method includes adhering a first matrix material to at least a portion of a mold cavity corresponding to an outer surface of the bit body, loading a second matrix material into the other portions of the mold cavity, and heating the mold contents to form a matrix body drill bit.

Abstract: A wire stripping apparatus is disclosed. The apparatus comprises a clamping device for holding a first portion, a cutter having a plurality of first edges, the first edges being movable toward and away from one another in a first direction wherein the first edges provide a cut in the insulation of the wire at the second portion, and a remover having a plurality of second edges, the second edges being movable toward and away from one another in a second direction different from the first direction wherein the second edges move toward one another to grasp a third portion adjacent to the second portion of the wire away from the first portion of the wire. The remover is movable in the lengthwise direction of the wire wherein the remover moves in the lengthwise direction of the wire away from the first portion to remove the insulation from the wire.

Abstract: A hammer assembly having means for holding a nail includes a hammer and a nail holder. The nail holder is detachably mounted to the hammer to expose its one part or entirety outside an external surface of the hammer. When the nail holder is separated from the hammer, the nail holder can be used for holding a nail which is to be hit by the hammer. In this way, the user does not need to hold the nail by his or her hand to prevent the user's hand from any accidental hit of the hammer. Besides, when the nail holder is not needed, the user can mount it to the hammer. Therefore, the hammer assembly can be operated safely and stored conveniently.

Abstract: A fastener holder is configured for starting into a threaded hole an elongated threaded fastener having a threaded fastener stem. The fastener holder includes an arm that extends longitudinally along an arm axis and has a distal end from which depend first and second opposed fastener-gripping members that are alternatively displaceable along a first plane toward and away from one another between a fastener-gripping position and a fastener-releasing position. The fastener-gripping members are oriented relative to the arm such that the first plane is orthogonal to the arm axis. A fastener-gripping position is such that the fastener-gripping members are biased toward one another and a fastener stem situated between the fastener-gripping members is retained by a constrictive force exerted by the fastener-gripping members on the fastener stem.

Abstract: A gear unit applies to engaging a ratchet wheel for co-operation, wherein the body material of the gear unit is chose high-density steel through heat processing for enhancing hardness, such as medium carbon steel, high carbon steel, or alloyed steel, and made through continuous multiple cold forging and punching and heat processing; the gear body of the gear unit includes a junction matching the ratchet wheel profile and forming an external tooth through cold forging and punching, and the tooth shape matches the ratchet tooth of the ratchet wheel to engage the ratchet wheel; by way of using the special steel through the process of continuous cold forging and punching and heat processing, the internal structure of the gear unit is dense compaction, so as to improve the mechanical properties, thus the ratchet wheel wrench using the gear unit will have excellent operating performance and long service life.

Abstract: The present invention generally relates to an apparatuses for the use in hard to reach areas that would otherwise be inaccessible. Specifically, this invention relates to a low-profile tool apparatus for accommodating work in areas with a limited amount of space, the low-profile tool comprised of an accessory attachment head, a spring element, one or more spring element height adjustment slots, a handle and a handle extension.

Abstract: With a structure capable of idly rotating a main body which is lower than a handle even when fixing the handle in a palm of a hand, a screwdriver can be retained by pushing the handle and rotated at the same time. Therefore, a finger force for retaining the screwdriver is not necessary. The screwdriver can be rotated by one hand. Since a clip chuck for setting the screwdriver is formed in an impeller shape, fingers can be suspended for rotation. Since the rotation can be performed not by grasping but using muscles of the entire hand, fatigue of the muscles can be reduced.

Abstract: A toolholder assembly for releasably holding a toolholder includes a toolholder having a tubular shank with at least two perforations; a tool support member; a canister disposed within the tool support member and including at least two apertures; a lock rod movable within the tool support member in a reciprocating motion for pulling the toolholder into a locked position and for releasing the toolholder to an unlocked position; and at least two locking elements disposed within the spaced apertures of the canister and engaging the lock rod so that movement of the lock rod causes the locking elements to extend radially outward from the canister. The circumferentially spaced perforations of the tubular shank each include a primary cylindrical wall and a forward facing contact surface at least partially defined by a depression having a converging wall surface non-concentric with the primary cylindrical wall of the perforations.

Abstract: A ring saw including a housing with a whirling assembly, on which a holder for a saw blade with inner teeth connected with a drive is rotatably mounted. A control unit controls the assembly. A vibration meter is disposed on the housing. The whirling assembly has a rotational position transducer for detecting the saw blade's rotational position. An evaluation unit, connected with the vibration meter and the rotational position transducer, is set up so that a vibration progression per saw blade tooth is determined on the basis of the vibration meter and rotational position transducer measurement data. The evaluation unit is connected with the control unit of the whirling assembly, which is set up so that the saw blade penetrates into the work piece with a region of low measured vibration amplitude during the penetration process. A method for controlling a saw blade of a ring saw is also provided.

Abstract: In a system and method for controlling the length of a discrete segment of an elastic web, a wound off tension of the web is determined during unwinding from a wound roll. The unwound web is delivered to a processing station while being maintained in tension. A discrete segment of the web is transported away from the processing station for at least a time t wherein the discrete segment decreases in length to a recovered length. The recovered length is predicted based at least in part on the wound off tension and in response to the predicted recovered length, at least one of the following is controlled: 1) the speed at which the web is delivered to the processing station, 2) the tension in the continuous web as it is delivered to the processing station, and 3) the length of the discrete segment at the processing station.

Abstract: A bagel slicing apparatus comprising providing a housing having a plurality of cutting blades, with the cutting blades moving linearly and reciprocally to slice a bagel into a plurality of bagel chips.

Abstract: Provided is a method of shearing a thin plate with high quality without a need for narrowing a clearance by precision machining. The method comprises: placing a thin plate (1) having at least one non-metal layer (1b), between a punch (3) and a die (2) having a shearing hole (2a); and relatively moving the punch (3) toward and with respect to the shearing hole (2a) to thereby shear the thin plate (1), wherein the relative movement of the punch (3) is stopped to complete the shearing, before the punch (3) penetrates through the thin plate (1) and becomes fitted into the shearing hole (2a).

Abstract: A method of manufacturing a three dimensional sculpture. An individual determines an object to be sculpted and then cuts metal sheets in predetermined shapes and sizes and stacks the sheets into layers at predetermined locations based on the object to be sculpted. The layers are then fabricated together to form a three dimensional sculpture.

Abstract: A punch unit for a press die for punching a hole in sheet metal includes: a piercing punch provided with a sharp projection; a plunger for pressing the piercing punch; a cylinder for supporting the piercing punch and the plunger slidably in a punching direction; and a coil spring for retracting the piercing punch and the plunger. Also disclosed are a press die for punching a hole in sheet metal and a punching method using the punch unit.

Abstract: A programmable machine for roll forming metal decoiled from a roll of metal and cutting the panels at a desired angle is provided. The roll former can form male and female edges on the metal which are necessary for a metal roof. The machine has a notcher to notch the metal where it is to be cut in order to avoid difficulty in cutting through a male or female edge. An exit cutter is provided after the metal has been roll formed. The angle at which the exit cutter can cut is also calculated in the programmable computer. A measuring device for measuring the roof and transferring the data to the programmable machine for cutting the panels completes a system for automatically and accurately cutting the panels for the roof.

Abstract: A miter saw has a supporting table, a rotation device which can rotate about a vertical axis relative to the supporting table, a miter arm which particularly can rotate about the vertical axis, and a saw device arranged on the miter arm. The saw device is arranged above the supporting table to be movable up-and-down and/or to be pivotable. The rotation device has a rotation base with a recess and an insert arranged in the recess, wherein the insert preferably at least partially borders a sawing slot. The miter saw has a high cutting quality and a safe support of the workpiece is produced in that the insert and/or the recess are constructed in such a manner that the insert can be adjusted in its height and/or the vertical alignment of the insert can be adjusted relative to the supporting table and/or relative to the rotation base.

Abstract: A portable, non-power operated cutting tool for cutting sheets of building materials in a straight fashion without splintering or cracking. The cutting tool includes a base, a blade holder with a blade, and a handle with an eccentric cam rotatably connected to the base, where the blade holder moves between an open position and a closed position by rotating the eccentric cam.