Abstract: A slag composition containing steelmaking slag and from about 0.3 to about 10 weight percent of reducing agent. The steelmaking slag contains from about 20 to about 55 weight percent of calcium oxide, from about 8 to about 50 weight percent of ferrous oxide, from about 4 to about 20 weight percent of magnesium oxide, from about 8 to about 30 weight percent of silicon oxide, from 0.5 to about 10 weight per cent aluminum oxide, and from about 0.5 to about 10 weight percent of manganese oxide. The reducing agent contains from about 15 to about 70 weight percent of calcium carbide and from about 10 to about 50 weight percent silicon carbide, wherein the ratio of calcium carbide to silicon carbide is between 0.7 and 7.

Abstract: A process and an apparatus for reducing charge materials containing iron ore or for producing pig iron or liquid primary steel products in a smelting unit are provided, the charge materials being at least partially reduced in at least one reduction unit by means of a reducing gas and optionally at least some of the at least partially reduced charge materials being melted in a smelting unit while supplying coal or coke and gas containing oxygen, while simultaneously forming the reducing gas, and the reducing gas or a reducing gas generated externally being supplied to the reduction unit. In the event of an interruption in the production of pig iron or primary steel products, the at least one reduction unit is emptied and the at least partially reduced charge materials are introduced into at least one vessel and kept under a non-oxidizing shielding gas atmosphere.

Abstract: Disclosed herein is a method for producing a titanium-aluminium alloy containing less than about 15 wt. % aluminium. The method comprises a first step in which an amount of titanium subchlorides at or in excess of the stoichiometric amount required to produce the titanium-aluminium alloy are reduced by aluminium to form a reaction mixture comprising elemental titanium, and then a second step in which the reaction mixture comprising elemental titanium is heated to form the titanium-aluminium alloy. The reaction kinetics are controlled such that reactions resulting in the formation of titanium aluminides are minimised.

Abstract: A staple holder comprising: a handle; a head attached to a first end of the handle; a staple remover attached to a second end of the handle; an insulated layer in communication with the head; a slot located in the head and in the insulated layer; and a magnet located in the head, and adjacent to the slot.

Abstract: A hand tool with adjustable swing angle includes a first and a second ends connected with each other to contain an adjustable angle. The first end has an upper wall section having a first splined hole and a lower wall section having a through hole. An annular groove is formed on a circumferential wall of the through hole. The second end is formed with a second splined hole positioned between the first splined hole and the through hole. An engagement member having a bulged section is positioned in the splined holes. An elastic restriction ring is positioned in the annular groove and has at least two holding sections positioned in the through hole. When moving the engagement member up and down, the elastic restriction ring is expanded by the bulged section, permitting the engagement member to engage with both the first and second ends or only the second end.

Abstract: A ring pliers can be adjusted to work with internal rings and external rings.

Abstract: The present invention provides a screw bit and holder system wherein the screw bit is capable of tilting or swiveling in order to work at angles off of perpendicular to a screw head. The base of the bit is rounded with sides that are flat to prevent rotating the bit while allowing a tilt.

Abstract: A food slicing and weighing system produces stacks of slices of food product. Each stack has a total number of slices or a weight greater than a predetermined minimum stack weight. The food slicing and weighing line comprises a slicing unit and a weighing unit. The slicing unit has a blade for cutting slices off a log of food and a control arrangement comprising a controller for setting the thickness of the slices. The weighing unit has a surface supported by a load sensor. The surface is positioned at the location the slices are cut off the log, each slice dropping onto the surface as each slice is cut from the log. The load sensor senses the weight of the slices as each slice is dropped onto the surface and provides a signal to the controller. The controller determines from the signal a measured combined weight of a number of slices less than the total number of slices and then a target thickness for a next slice to be added to the stack of slices based on the measured combined weight.

Abstract: Systems and methods for performing a variable rotary cutting operation on a web. A desired product length is inputted into a software program that identifies therewith a first of multiple cassettes that are interchangeably installable in a cutting apparatus. Each cassette includes a knife cylinder having multiple knife holders mounted thereto in which multiple knives are installed. The software program further identifies a number of knife holders and a rotational speed for the knife cylinder that differs from the speed of the web and achieves the desired product length. The first cassette is installed in the cutting apparatus and the web is fed through a variable repeat printer and thereafter through the first cassette. The variable repeat printer prints images on the web and the knife cylinder is rotated at the rotational speed identified by the software program to produce the desired product length.

Abstract: In certain embodiments, a method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface; striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness; striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness; and leaving the first removable portion in place rather than removing the first removable portion. In other embodiments, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.

Abstract: Disclosed herein are apparatuses and methods handling a portion of a tissue sample when sectioned by a microtome. The apparatuses include a container, a tissue sample holder in the container, and one or more outlets configured to allow flow of a fluid from the container. the flow through the outlet causes a portion of the tissue sample sectioned by a microtome to move into the outlet. The methods include sectioning one or more portions of a tissue sample, and flowing a fluid past the tissue sample to cause the one or more portions of the tissue sample to move away from the tissue sample and toward at least one fluid outlet.

Abstract: A food stabilization device comprising one or more cross-bars and a plurality of teeth. The one or more cross-bars comprise at least one of a cross-bar height and a cross-bar width adapted to receive a gripping mechanism. The plurality of teeth extend from the one or more cross-bars and comprise a tip adapted to pierce one or more layers of a food item and a length adapted to at least partially reach the one or more layers of the food item.

Abstract: A method for making a metallic casing includes providing an apparatus comprising a first mold and a second mold, placing a preform into a rectangular depression of first mold, moving the first mold to the second mold so that each sharp edge is substantially coplanar with a corresponding cutting edge, moving the first mold to the second mold so that the cutting edges are beyond the corresponding sharp edges of the first mold to complete a partial cut procedure, and moving the first mold to the second mold so that the secondary-cutting edge moves beyond the corresponding sharp edge and completely cuts the excess off the side wall.

Abstract: The invention is for a method for making precise pairs of rails and stiles for doors and the apparatus for practicing the method. The method teaches cutting profiles into the perimeter of a workpiece and then cutting the workpiece in two to form two identical rails or stiles. The method teaches the use of a flat and true base having a flat and true fence along which a workpiece is moved into positions to cut profiles in the perimeter of the workpiece and then to cut the workpiece along its centerline into two identical rails or stiles.

Abstract: The present invention discloses a printer convenient for maintaining a paper cutting device (500). The printer comprises a paper cutting device and a movable blade avoiding mechanism. The paper cutting device has a movable blade component (510) fixed on the upper cover (100) of the printer and a fixed blade (520) fixed on the body (200) of the printer, the movable blade avoiding mechanism has an avoiding cover (210) capable of turning upward and pivoted to the body of the printer, and a positioning member (240) and an elastic pressing member (230) which keep the avoiding cover in a predetermined position on the top of the fixed blade. The avoiding cover and the upper cover of the printer are respectively arranged at two sides of a printing paper conveying passage, with opposite turning directions, and the movable blade (511) of the movable blade component is located between the avoiding cover and the fixed blade.

Abstract: A miter saw with a cutting alignment device includes a base with a work surface provided thereon. A bevel support is pivotable with respect to the base and a cutting blade is supported by the bevel support. A dust chute is adjustably secured to the bevel support and pivots with respect to the base when the bevel support pivots. The dust chute includes mounts that allow lateral adjustment of the dust chute with respect to the bevel support. A laser alignment device is positioned on the dust chute and configured to emit a beam of light toward the work surface. The dust chute includes a receptacle designed and dimensioned to releasably hold the laser alignment device. Because the laser alignment device is retained on the dust chute, adjustment of the dust chute also results in adjustment of a beam of light emitted from the laser alignment device.

Abstract: A rotary cutting apparatus comprises a frame and a die roll defining a first longitudinal axis and comprising a cutting member. The die roll is rotatably connected with the frame and configured to rotate about the first longitudinal axis. The rotary cutting apparatus further comprises a bearer ring connected with the die roll and an anvil roll defining a second longitudinal axis and comprising an outer radial surface. The anvil roll is rotatably connected with the frame and is configured to rotate about the second longitudinal axis. The bearer ring of the die roll is in contact with the outer radial surface. The rotary cutting apparatus further comprises a reconditioning member comprising an abrasive surface engaged with the outer radial surface of the anvil roll. The outer radial surface of the anvil roll moves relative to the abrasive surface.

Abstract: An electrode plate manufacturing apparatus of the present invention includes an original plate support portion that supports an original plate of an electrode plate coated with an electrode active material, a first cutting blade that forms a linear first cutting portion in the original plate, a first support substrate, which is arranged to face the original plate support portion, having the first cutting blade fixed thereto, a second cutting blade that forms a linear second cutting portion in the original plate, a second support substrate which is arranged to face the original plate support portion, having the second cutting blade fixed thereto, and a driving portion that drives the first and second support substrates, wherein, when the first support substrate is driven by the driving portion, the first cutting portion is formed by the first cutting blade.

Abstract: A cutting apparatus includes a holding conveying mechanism configured to convey a web using a holding surface, and a cutting mechanism configured to perform first cutting to cut the web conveyed while being held by the holding conveying mechanism along a crossing direction crossing a conveyance direction of the web and performing second cutting to cut the web along the crossing direction with a predetermined distance from the first cutting. The holding surface includes a main holding area configured to hold the web along the crossing direction between the first cutting and the second cutting, and an auxiliary holding area configured to hold the web by a holding power weaker than the holding power in the main holding area, at least in either upstream or downstream of the conveyance direction of the main holding area.

Abstract: A multi-cutter cutting device is composed of a chassis having a guide channel, a rotary member rotatably mounted to the chassis and located at one end of the guide channel, and a plurality of cutting units. Each of the cutting units includes a shell mounted to the rotary member, and a cutter rotatably mounted to the shell and having a cutting edge protruding downward from a bottom side of the shell. Each of the cutting units can be moved along with the rotary member and along a radial direction of the rotary member to be separated from the rotary member and then can continue to move along the guide channel. In light of the above, the cutting device is structurally simple and can be easily manufactured and assembled. Besides, the cutting device is flatter to be easily packaged and stored.

Abstract: A hand-held machine tool such as a jigsaw includes a distance measuring unit for the contactless detection of a section of a specified path and for visualizing a working path corresponding to the specified path and/or for aligning the machine tool including its working tool with the working path corresponding to the shape of the specified path by means of an adjusting device.

Abstract: A tremolo device for static retention of a plurality of musical instrument strings in a stringed instrument. The tremolo device has a body with an upper surface, a neck portion, and a plurality of strings anchored at a first end of the neck and extending over at least a portion and secured to the tremolo device at the other end of the neck portion and the body and possesses an inertia block mechanism with substantially solid construction disposed to receive and securely retain a plurality of raw instrument strings without removal of a ball end from each string. The inertia block has an upper portion, a lower portion, and a plurality of internal, longitudinally displaced, cylindrically shaped, string retaining chambers designed to pass through an entirety of the block mechanism. The string retaining chambers have an upper and lower portion corresponding with the upper and lower portions of the block.

Abstract: The present disclosure relates to s music instruction method. A system is provided which allows a user to more intuitively understand and play music without the complexity of traditional piano learning and embodies comprises a step-by-step instruction method of basic chords. The system also streamlines composition and arrangement of piano music for the beginner. The invention further provided which allows a learner to more intuitively understand basic music theory and performance.

Abstract: Method and apparatus for producing a record of a person's voice that stores a recording of an artist singing a song, stores a selected sequences of sounds of a person correlated with the words being sung in the song, processes the selected stored sounds so that the person's voice sounds as if the person were singing the song with the same pitch and timing as the artist singing the stored song, combines the processed selected stored sounds with the instrumental track of the song; and stores the combined processed selected stored sounds with the instrumental track of the song.

Abstract: A sound analysis and associated sound synthesis method includes: (a) receiving a first input sound signal; (b) analyzing the input sound signal to determine its corresponding impulse response representative of a timbre of the input sound signal; (c) receiving a second input sound signal; (d) processing the second input sound signal into a form to which the corresponding impulse response is susceptible to being applied, wherein said processing includes generating a “pink noise” equivalent frequency spectrum of the second input sound signal; and (e) applying the impulse respond to the processed second input sound signal to generate an output signal, wherein the output sound signal includes at least timbral nuances of the first input sound signal.

Abstract: A method for and apparatus absorbing the energy of a projectile strike by a multiplicity of energy dissipating elements of high mass that are contained within a spaced defined by walls. A projectile passing through one of the walls transmits its energy to a multiplicity of energy dissipating elements, such as hardened steel balls or various shaped objects of high mass, by causing energy transfer and distribution through a loose mass of the energy dissipating elements and disintegrating the projectiles. Energy absorbing apparatus embodying this method may take the form of a static or moveable bullet or projectile trap, an energy absorbing external barrier or shelter on vehicles, and portable personnel protection structures for use in a tactical environment. The energy absorbing and dissipating elements are subject to some movement in response to the energy imparted by the projectiles and quickly settle after the energy has been dissipated.

Abstract: A transparent armor system includes a hard face fabricated from a substantially transparent glass-ceramic material exhibiting crystalline bodies throughout the mass of the glass-ceramic material and a backing covering a rear surface of the hard face opposite an anticipated incoming projectile. The backing has a refractive index substantially matching that of the hard face such as to allow substantial transparency of the transparent armor system. The hard face serves to disburse energy caused by the impact of an incoming projectile with the transparent armor system, while the backing serves to retain any pieces of the hard face fractured during ballistic impact. In certain embodiments, a plurality of hard faces are held in parallel and spaced apart arrangement.

Abstract: A blast protected unit (100) for blast protection comprises: a protecting panel (14) having a first side (7) and a second side (8); a sub-frame (16) adapted to circumscribe said protecting panel (14); and a plurality of energy absorption units (30). The absorption units (30) are adapted to connect the sub-frame (16) to the protecting panel (14). Each of the energy absorption units (30) is connectable to the protecting panel (14) and the sub-frame (16), such that the aforementioned blast protected unit (100) is formed. The energy absorption units (30) are configured to deform under a blast force applied against the first side (7) of the protecting panel (14), allowing the protecting panel (14) to move away from and remain in proximity to the sub-frame (16).

Abstract: A pneumatic actuator is provided for an active hood and includes a cylinder and a piston, which is movable in the cylinder between a lower terminal position, in which the volume of a chamber delimited by piston and cylinder, which may be impinged using compressed gas, is minimal, and an upper terminal position, in which the volume of the chamber is maximal. The piston is lockable in the lower terminal position by a detent body engaging in first recesses of the cylinder and the piston. A slider is displaceable by impingement using the compressed gas out of an idle position, in which it fixes the detent body in the first recesses, into a triggering position, in which a second recess of the slider overlaps with one of the first recesses and is capable, together with a single one of the first recesses of accommodating the detent body.

Abstract: A timing device for an intermittent vacuum regulator comprises a diaphragm assembly that includes a diaphragm housing, a return spring, and a diaphragm projecting at least partially out of the diaphragm housing. A piston rod is coupled to the diaphragm. A connecting rod comprising an upper free end coupled to the piston rod and a lower fixed end coupled to a valve pin is provided. A piston stop comprising a semicircular C-shaped portion on its front side and a semi-cylindrical portion on its back side is also provided, wherein the piston rod directly pushes and pulls the connecting rod, such that during an intermittent operation of the timing device to actuate a valve assembly, the upper free end of the connecting rod rotates about the valve pin but is being limited in a range of motion by the piston stop.

Abstract: Disclosed herein is a differential pressure poppet valve comprising: a valve body, the valve body having at least one flow inlet and at least one flow outlet; at least one shutter guide disposed inside the valve body; at least one poppet shutter guided by the shutter guide; at least one flow passage from the flow inlet to the flow outlet, the flow passage being formed between an inside surface of the valve body and an outside surface of the shutter guide and of the poppet shutter. The valve further comprises at least one biasing member configured to bias the poppet shutter towards a closed position so as to block the flow passage through the flow inlet. To reduce impact wear at least a first damper is provided, configured and arranged to at least partly absorb impact energy of the poppet shutter when the poppet shutter opens or closes the flow inlet.

Abstract: A hydraulic accumulator includes: a pressure vessel; a hose which is situated within the pressure vessel, for receiving a first medium; a gap, which is formed between the pressure vessel and the hose, for receiving a second medium; and at least one connection for supplying and discharging the first or the second medium under pressure into or out of the hose or the gap, the supply of the first medium resulting in the compression of the second medium.

Abstract: The present invention provides an air cleansing system that removes the polluted air and controls the air temperature. This system may be optionally integrated with other systems including security, surveillance, smoke alarms and the like.

Abstract: The present invention relates to an asymmetric hollow fiber membrane for gas separation made of a soluble aromatic polyimide, wherein an orientation index is 1.3 or less, a separation coefficient ?(P?O2/P?N2) as a permeation rate ratio of oxygen gas/nitrogen gas at 40° C. is 5.3 or more, and a tensile fracture elongation is 15% or more.

Abstract: Method for recovering a desired component from a waste gas comprising (a) at an operating facility, introducing a waste gas comprising the desired component and one or more undesired components into an adsorber containing adsorbent material selective for the desired component, adsorbing at least a portion of the desired component therein, (b) terminating flow of waste gas into the adsorber; and (c) recovering and concentrating the desired component by either (1) isolating the adsorber, transporting the adsorber to a central processing facility, or (2) withdrawing from the adsorber an intermediate gas enriched in the desired component, compressing the intermediate gas and storing it in a vessel, isolating the vessel, transporting the vessel to a central processing facility to provide a concentrated product further enriched in the desired component.

Abstract: The present invention relates to a six bed pressure swing adsorption (PSA) system utilizing new and advanced cycles to obtain enhanced hydrogen recovery from a hydrogen containing feed gas (i.e., synthesis gas). In one such cycle each of the six beds has four pressure equalization steps, and at least one of the beds is receiving and processing said feed gas to obtain a hydrogen product gas (i.e., a 6-1-4 cycle).

Abstract: A separation apparatus for carbon dioxide is provided which includes an absorption unit for absorbing flue gas from a fossil-fueled power station, a desorption unit and a heat exchanger which on the primary feed side is connected via an inlet-side feedback line to the desorption unit, and on the discharge side is connected via an outlet-side feedback line to the absorption unit. On the secondary feed side, the heat exchanger is connected via an inlet-side feed line to the absorption unit, and on the discharge side is connected via an outlet-side feed line to the desorption unit. A first bypass line connects the inlet-side feedback line to the outlet-side feed line so that a mostly closed first circuit with the desorption unit is formed, and a second bypass line connects the inlet-side feed line to the outlet-side feedback line so a mostly closed second circuit with the absorption unit is formed.

Abstract: A gas separation device is disclosed. In particular, seal assemblies and adsorbent element constructions for a gas separation device such as a pressure swing adsorption device are disclosed. The seal assembly can be part of a rotary valve and can include a seal backer and a floating seal positioned within a bore in the seal backer. The floating seal is configured to press towards and seal against an adjacent rotor. Valve action is provided as apertures in the floating seal and rotor are brought into and then out of alignment as a result of relative rotation therebetween. The seal assembly can include two types of gas chambers to apply balanced sealing pressures over the sealing surface of the valve, one type configured to receive pressurized process gas from within the device and the other configured to receive gas from an independently controlled pressurized gas source.

Abstract: In one example, we discuss the separation of the captured gases as byproducts, for future/other purposes, coming from conventional power generators or factories or from algae biofuel production facility (or any other similar sources). This increases the energy production, saves the environment, conserves the resources, improves the air quality, reduces the global warming, increases water supply, reduces the cost, and improves agriculture and food resources, around the globe. In one example, we discuss the biofuel production, method, and system.

Abstract: A brewing device includes a receptacle, which has a bottom forming a bore. A filtering member is received in the receptacle. A flow control assembly is arranged below the receptacle and is vertically movable with respect to the receptacle. The flow control assembly includes a bar extendible through the bore. An upward movement of the flow control assembly pushes away a closure member sitting on the bore. A guidance section is formed below the bore. The flow control assembly includes a flow guide section corresponding to the guidance section. When the flow control assembly is moved upward, the guidance section and the flow guide section collectively form a water passage. A brewing liquid contained in the receptacle, when discharged through the bore, is shielded by the water passage and is confined and concentrated for smooth flow thereby eliminate the occurrence of leak, splash, and overflow of the brewing liquid.

Abstract: The brewing device contains a container and a functional unit beneath the container conductive to the container. The functional unit contains a pressure section and an exit section. The pressure section is conductive to and is smaller than the container. The pressure section is configured with air holes for drawing outside air. The exit section is conductive to and is smaller than the exit section. As the brewed liquid (such as the coffee brewed from the coffee powder) flows through the pressure section, it undergoes a pre-determined pressure through the air holes. Additionally, the container and the functional unit jointly achieve Venturi effect so that the brewed liquid is sped up under greater pressure difference as it passes through the exit section. As such, the molecules of the brewed liquid are activated and thinned to achieve enhanced flavor.

Abstract: A coffee maker with continuously adjustable water flow rate, continuously adjustable feedback-controlled water temperature, and low thermal mass allows baristas to experiment with and digitally program and/or record different flow-rate and temperature profiles (brewing profiles) over the course of brewing a cup or batch of coffee. Brewing profiles may be recorded on one machine and reproduced (played back) on another machine, allowing reproducibility of subtle flavor variations in brewed coffee.

Abstract: A selective hydrogen adding equipment is provided by which living organism applicable hydrogen-contained fluid is obtained without changing properties of the living organism applicable fluid. Living organism applicable hydrogen-contained fluid is obtained through storing a hydrogen generating system, which contains a hydrogen generating agent as an essential component, in a hydrogen bubble forming implement which has a gas/liquid separating section including a gas-permeable film or an open-close type valve, causing the hydrogen generating system and a generating-purpose water to react in the hydrogen bubble forming implement, and supplying hydrogen gas generated in the hydrogen bubble forming implement into living organism applicable fluid via the gas/liquid separating section.

Abstract: In some implementations, a cooler reduces the temperature of pressed dough balls after the pressed dough balls have been baked in an oven. The cooler may include multiple cooling conveyors arranged in a vertical stack with adjacent conveyors transferring the pressed dough balls in opposite directions. The cooler may include a safety release turnaround between each of the adjacent cooling conveyors to move the pressed dough balls between the adjacent conveyors in the cooler.

Abstract: A pressure cooker lid includes a lid body, one or more lid clamps, a pressure valve, and a single control mechanism operable to sequentially control radial movement of the one or more lid clamps and control actuation of the pressure valve. Each of the one or more lid clamps includes a connection element and a clamp element. The pressure valve includes a valve stem. The control mechanism includes a rotary disc coupled to the connection elements and a knob mechanism operable to drive rotation of the rotary disc. Rotation of the rotary disc sequentially drives radial movement of the connection elements and axial movement of the valve stem to operate pressure valve.

Abstract: A barbeque smoker has an angled front with a heated exhaust that increases draft and air circulation, resulting in a more even heat and smoke distribution than conventional smokers. By heating an internal chimney directly over the smoker's fire, the temperature in the exhaust is higher than it is inside the cooking chamber, thus increasing draft/air circulation. The chimney intake is positioned below the cooking grates and runs on an upward angle through the cooking chamber. The chimney terminates outside the top of the smoker. This configuration forces the chamber to uniformly fill with heat and smoke before any heat or smoke can exit the cooking chamber. The increased draft aids efficient circulation of the heat and smoke, creating a very uniform cooking environment.

Abstract: A grill with an anti-shaking structure has an upper pan and a lower pan, an upper heater and a lower heater for heating the upper pan and lower pan respectively. At least one shaft member having a shaft and a shaft base for containing the shaft is disposed between the upper and lower pan. The shaft base has a triangular shaft hole with a protrusion in a side of the triangle. The shaft passes through the triangular shaft hole and can be moved among the three angles for switching the use of the upper pan and lower pan. When the upper pan and the lower pan are unfolded to 180°, the shaft can be limited by the protrusion. The grill can be switched among three using status: 0°, 105° and 180°, and in each status both the upper pan and lower pan are stable.

Abstract: Provided are a condensate guiding system and a steam cooker including such a condensate guiding system. The condensate guiding system may include a condensate collector and a condensate guide. The condensate collector may collect condensate formed from steam included in air discharged from the cooking chamber. Condensate that flows along an inner surface of the steam cooker, and that is discharged out of the steam cooker, may be guided to the condensate collector by the condensate guide.

Abstract: A chafing dish assembly provides more uniform and more lasting heat to its food pan by replacing its water pan with a sealed cavity enclosing a synthetic, silicon heat transfer oil.

Abstract: A rocker assembly of a strapping machine has a rocker having a seat, a positioning panel mounted on the seat and being able to swing, and two teeth panels slidably mounted on the positioning panel. When a fixed end and a tightening end of a wrapping strap are mounted between the rocker assembly and a tensioning wheel, the teeth panels slide and the positioning panel swings to adjust engaging surfaces and engaging forces between the teeth panels and the wrapping strap according to thickness of the wrapping strap. Thus the wrapping strap is able to securely wrap around the goods and is not scratched.