Abstract: Lids (10) of a substrate material (5) having a plastic film, featuring printing (6) on the outside, with respect to a container (1) on which the lid (10) is employed, and an inward facing sealing layer (8,9), for closing the container (1) which has a shoulder region (4). The inward facing side of the substrate material (5) features the sealing layer (8,9) in the form of a printed image, and the printed image corresponds with the shoulder region (4) of the container (1) and is in the form of a series of points (12). The printed image (12) which forms the sealing layer (8,9) and the printed pattern (12) may be deposited in the same printing machine in which the printing (6) on the substrate layer takes place. The printed image (11) enables easy removal of the lids (10) individually from a stack of lids in the packaging machine without having to depend on embossing of the lids.

Abstract: The numbering machine comprises a series of cams (2) and a series of wheels (3), each cam (2) being connected with a wheel (3), so that the turning of a cam (2) signifies the turning of a wheel (3). The cams (2) have on their periphery nine projections (17) and a recess or hollow (18), while each wheel (3) has on its periphery the digits corresponding to the first nine numbers.

Abstract: A gripper for screen printing applications comprises a gripper body supporting a tensioning assembly comprising a gripping element designed for gripping the edge of a fabric to be tensioned on a frame, and a bottom abutment cam providing a variable lowering stroke based on a withdrawal tensioning stroke of the tensioning assembly.

Abstract: A stencil comprising two or more layers is disclosed for applying surface mount materials onto printed circuit boards, flexible circuits, wafers or other substrates. The stencil can accommodate preexisting surface mount components and materials. The stencil utilizes material reservoirs, relief areas and delivery apertures and can be used for depositing surface mount materials such as adhesives, conductive glues, solder paste and solder balls.

Abstract: Devices for turning sheets in a rotary printing machine are described. The devices have a storage drum for handling sheets, which are each held by a holding device, and a turning drum is disposed downstream of the storage drum and has a holding device for engaging a rear edge of the sheet to be turned. An operation of detaching the sheet to be turned from the storage drum and carrying it along by the turning drum leads to the formation of a pressure reduction in an area formed between the sheet to be turned, the storage drum and the turning drum. The pressure reduction is compensated for by supplying ambient air, blast air and/or compressed air. The turning device has a channel and/or a passage orifice connected to an inner chamber of the turning drum. Via the channel and/or passage orifice air can be sucked and/or blown into the reduced-pressure area.

Abstract: A device for turning sheet-like material from a printed side onto an unprinted side uses an impression cylinder which guides the sheet-like material and which is preceded by a transfer cylinder and followed by a further transfer cylinder. The sheet-like, flexurally rigid material is received on the outer surface of the impression cylinder and can be printed with a transmission cylinder. In the gusset between the outer surfaces of the impression cylinder and the preceding transfer cylinder, a contactlessly acting throw-on device is provided which forces the sheet-like material into a curved position corresponding to the curvature of the outer surface of the impression cylinder such that the sheet-like material is curved even in the gusset region. A printing press and a multicolor rotary printing press are also provided.

Abstract: A printing press includes first and second impression cylinders and a varnish supply unit. The first impression cylinder has a gripper unit for holding a sheet-like object, and is rotatably supported. The varnish supply unit supplies varnish to the sheet-like object held by the first impression cylinder. The second impression cylinder is in contact with the first cylinder, and has a gripper unit for receiving the sheet-like object held by the first impression cylinder. The sheet-like object held by the gripper unit is transported such that its varnish-coated surface opposes a surface of the second impression cylinder. A fluorine-contained polymer layer is formed on that surface of the second impression cylinder which is in contact with the varnish-coated surface of the sheet-like object.

Abstract: A device for fast image data transfer in at least one printing press having at least one RIP, includes a data manager to which image data is supplied, at least one storage unit and at least one imaging unit. A bus system is provided for connecting the at least one storage unit both to the at least one data manager for intermediate buffering of the image data, and to the at least one imaging unit for setting an image. The at least one imaging unit serves for communicating with the at least one storage unit, and for reading the image data directly from the at least one storage unit. A method is also provided for operating the device.

Abstract: A method for loading and unloading substrates on a drum of an imaging engine is applicable to the loading of plates in a platesetter. The method comprises unclamping a trailing edge of a first substrate of the drum and clamping a header of a second substrate to the drum. The order in which these two steps are performed is not critical to the invention. For example, the clamping and unclamping can happen simultaneously. Alternatively, the unclamping of the trailing edge can occur before the clamping of the header, or visa versa. In any case, the drum is then rotated to eject the first substrate from the drum while installing the second substrate on the drum. The notion here is that, as the drum is rotated, one substrate is being ejected while a second substrate is being installed on the drum. Thereafter, the header of the first substrate is unclamped and the trailing edge of the second substrate is clamped to the drum.

Abstract: A method for providing direct control of the ink supply for printing presses based on an output of a multispectral measurement device includes: obtaining an output of the multispectral measurement from a plurality of printed items which are printed while varying the amount of ink dispensed, utilizing percentage dot area information in print editing from a printing plate for the printed item; determining a transfer function to calculate the amount of ink dispensed corresponding to the amount of change in the multispectral; and computing the amount of ink dispensed to be changed, by using the output deviation in the multispectral measurement output from the target colors for a commercially printed item, and the percentage dot area information related to the target colors of the commercially printed item to control the amount of ink dispensed by the foregoing ink dispensing apparatus.

Abstract: The invention relates to a firing capsule for the gas generator of a passenger restraint system in a motor vehicle, especially for the gas generator of an inflatable impact protection cushion (airbag), in which the electrical energy necessary for detonating the igniting agent is inductively coupled into the firing capsule from the outside by means of alternating magnetic fields. The secondary circuit located in the firing capsule is formed by a closed resistance wire which is applied to a carrier plate of insulating or poorly conductive material.

Abstract: A non-lethal projectile includes a projectile body; a fuze disposed in a rear of the projectile body; an expelling charge disposed adjacent the fuze; a wad disposed adjacent the expelling charge; a dense powder ballast disposed adjacent the wad; a non-lethal payload disposed adjacent the dense powder ballast; and an end cap disposed on a front end of the projectile body; wherein the expelling charge expels the dense powder ballast and non-lethal payload and reduces the forward kinetic energy of the projectile body and the fuze to one of a near non-lethal or non-lethal level such that as the projectile body and the fuze travel from a burst point to a target impact a residual kinetic energy of the projectile body and the fuze is non-lethal.

Abstract: A steering mechanism for a track-mounted robot is provided. The steering mechanism comprises guide wheels, which are fixed to yokes that pivot around secondary drive wheels. The pivot action of the yokes allows the guide wheels to maintain full contact with the track and steer as the robot traverses straight and curved portions of the track. Linkage components attach the yokes to a cam follower which follows a cam surface in the track in order to force the proper angle of steering for the guide wheels.

Abstract: Upon forming a railway car composed of plural hollow shape members 40, annealed hollow shape members are used to form the ends of an underframe 30. The hollow shape members 40 are disposed so that their longitudinal orientation equals the longitudinal direction of the car body. The underframe 30 is formed by disposing plural hollow shape members 40 adjacent one another in the width direction and welding them together by friction stir welding. When the hollow shape members receive impact load, the ends of the members deform into concertinas, thereby absorbing the impact force. At this time, the friction stir welded portions also receive the impact force, but cracks are not created at the friction-stir-weld joints, and the weld joints do not prevent the hollow shape members from deforming into concertinas.

Abstract: In a railway car, extruded frame members of an aluminum base alloy containing Si of 0.4-0.9 wt % and Mg of 0.4-1.2 wt % are welded according to a friction stir welding method. In a structure, an aluminum base alloy plate containing Si of 0.4-0.9 wt % and Mg of 0.4-1.2 wt % is prepared, to one face of the aluminum base alloy plate a rib is formed, and the aluminum base alloy plate is an extruded frame member. Accordingly, a railway car having a low welding distortion and a structure having a low welding distortion can be obtained.

Abstract: A roof assembly mounted on a composite box structure with an air plenum assembly attached to and extending from an interior surface of the roof assembly. The composite box structure includes a pair of end wall assemblies, a pair of side wall assemblies, a floor assembly and the roof assembly. An opening may be formed in one end of the end wall assemblies to allow installing a temperature control system. An airflow management system may be incorporated into the composite box structure. The composite box structure may be assembled on a railway car underframe to form a temperature controlled railway car or an insulated box car.

Abstract: A railway car having a lowered center of gravity is provided. The underframe of the railway car is preferably formed by extending a series of cross bearers between a pair of side sills and spacing them laterally between a pair of end sills. A center sill is then preferably disposed on top of the cross bearers and extended between the end sills along a center line of the railway car underframe. One or more floor stringers are preferably also included and disposed generally parallel to the center sill and extended between the end sills. In one embodiment, the one or more floor stringers may be disposed on stringer support spacer beams positioned on one or more of the cross bearers.

Abstract: A table system with angular position control in which a table is moved accurately over a tiny angle in circular direction to any desired position. The table is supported on a bed for rotation through a crossed-roller bearing. Position control apparatus turns the table over a tiny angle through an arm plate fastened to the table. A nut and screw set cause a linear motion that is in line with a tangent of the table, and the linear motion is translated into a circular motion to turn the table by a first linear motion guide unit to control the linear motion in the tangential direction, and a second linear motion guide unit to control a linear motion in the direction facing the center of the table.

Abstract: An arrangement for detachable mounting of a table on a vehicle is disclosed. The arrangement includes a supporting element arranged for locking to the table and a first locking element arranged in the supporting element for locking the supporting element to the vehicle. The supporting element, by the use of the first locking element, is arranged for fastening to a second locking element designed in the vehicle whereby the supporting element and the first locking element solely carries the table. This provides an enhanced arrangement for stable and simple mounting of a table to a vehicle.

Abstract: A specially configured spacer comprising a separation member for use oriented in arrays between sections of horizontally oriented sheet material such as sheetrock to allow handling of the individual sections thereof separately from one another. The separation members are configured such as to facilitate re-use thereof including a slot defined in the interlocking cellular construction thereof adapted to receive banding for compactly securing together a plurality of such separation members to facilitate recycling usage thereof. The separation member includes two planar support members spaced apart by an interlocking cellular construction for defining therebetween recesses for receiving the arms of a forklift to facilitate handling of the sections individually while still allowing recycling of the separation members for re-use thereof.

Abstract: A modular, low cost pallet and shelf assembly and a method for assembling the assembly is disclosed. The shelf assembly comprises a plurality of support members arranged so as to releasably accept a pallet therebetween, each vertical support member comprising a plurality of apertures disposed therethrough, wherein each aperture is configured so as to accept and releasably hold tabs inserted through the aperture, and a plurality of pallet securing members, each pallet securing member comprising at least one pallet securing member tab releasably securable within a vertical support member aperture and a securing surface for restraining the pallet between the vertical support members.

Abstract: A foldable table frame includes a rectangular tabletop unit and a leg unit. The tabletop unit includes U-shaped front and rear frame members pivoted to each other so as to be foldable toward and unfoldable from each other. The leg unit includes two X-shaped leg frame portions, each including first and second leg members pivoted to each other and having upper ends pivoted respectively to the front and rear frame members. The leg members are movable together with the front and rear frame members when the front and rear frame members are moved pivotally relative to each other. The leg members are folded toward each other, and extend into recesses formed in bottom sides of the front and rear frame members when the tabletop unit is folded.

Abstract: An apparatus and method are provided for feeding a pulverized material which includes a first storage container for receiving and for discharging a flow of the pulverized material. The apparatus includes a separation chamber attached to the first storage container, which is alternately filled up or emptied out with the pulverized material. A second storage container is connected with an outlet of the separation chamber, for alternately filling the second storage container in accordance with a predetermined storage amount of pulverized material.

Abstract: A method for the combined reduction of sulfur dioxide, SO2, and nitrogen oxides, NOx, in the gas stream of a furnace from the combustion of fossil fuels is disclosed. In a narrow gas temperature zone in a furnace, NOx is converted to nitrogen by reaction with a reducing agent such as urea or ammonia with negligible residual ammonia and other reaction pollutants. In about this same temperature zone, SO2 will react with calcium oxide particles, derived from the calcination of lime, Ca(OH)2, or limestone, CaCO3, to form CaSO4 particles. A wide size distribution of aqueous droplets, containing dispersed lime or very fine limestone particles and dissolved urea or ammonia, is injected at the outer edge of the furnace gas zone at which the SO2 and NOx reduction reaction are effective.

Abstract: A tree spade system for providing a vehicle-mounted system capable of excavating large and heavy plants and transporting them while locking the system into place to prevent damage to the vehicle and plant The tree spade system includes a vehicle with a tilting mechanism, lifting mechanism and digging apparatus. The digging apparatus utilizes dual hydraulic cylinders to draw the digging blades into the soil surrounding the plant to be removed and transported. The digging apparatus is designed with the lowest profile possible to minimize the removal of lower branches from the plant to be transported. When the digging apparatus is lifted and tilted back upon the vehicle the system has a unique locking mechanism for holding the digging apparatus into place.

Abstract: A machine for planting grass sprigs having a superstructure supported on wheels for moving over the earth's surface a sprig storage bin supported by the superstructure, a distributor for moving grass sprigs contained within the storage bin towards an opening in the floor surface, a plurality of paralleled discharge troughs each having a wide upper open end for receiving grass sprigs therein from the sprig storage bin and a reduced width lower opening providing a relatively narrow discharge slot through which grass sprigs are deposited in an in-line pattern on the earth's surface, trenching disc in alignment with each discharge trough for forming a narrow trench in the earth's surface upon which grass sprigs are deposited, and a planting disc in alignment with and rearwardly of each discharge trough for forcing grass sprigs into the narrow trenches.

Abstract: A turf care system and method uses simultaneously fired pulses of high-pressure liquid jets of the mixture shot toward the ground. The liquid is mixed with dry grass seed shortly before being delivered to a high-pressure liquid/seed pumping system, which uses an accumulator and sequencing valve to produce at regular repetitive intervals pulses of the liquid/seed mixture under high pressure. The pulses are delivered to an elongated hydraulic manifold having multiple nozzles pointed downwardly, which are spaced from one another and the ground by predetermined distances. The momentum of the high-pressure jet of liquid/seed mixture issuing from each nozzle cuts through overlying vegetation to deposit the seeds into the crown of the soil at predetermined desired depth. Spray patterns are determined by nozzle orifice shape, and are preferably selected to provide a shallow knife slit-like opening or trench in the crown of the turf.

Abstract: A CNC controlled buttonhole sewing machine comprises work piece clamps with sliding drives for displacement from an initial position of spread, by a length of spread, into a final position of spread. The sliding drive is an electric positioning motor that is allocated to a work piece clamp. Further provision is made for a control unit with data storage, in which to store data, for displacement of the work piece clamp by a given length of spread.

Abstract: An apparatus for closing an open side of a fabric article from a first end to a second end. The apparatus may include a gripping device for gripping the first end and the second end of the open side of the fabric article and then tensioning the open side. The apparatus also may include a closing device positioned adjacent to the gripping device such that the closing device maneuvers along the fabric article to fasten the open side from the first end to the second end.

Abstract: To provide an article storage structure for a small boat in which the forward visibility of the small boat can be increased substantially and the center of gravity of the small boat can be lowered. The article storage structure for a small boat includes a steering handle for a hull disposed thereon. A display panel is disposed forwardly of the steering handle. An article storage box is provided forwardly of the display panel. A lid is provided for covering the upper surface opening of the article storage box. A hinge is provided at the front end of the lid. A latch is provided at the rear end for locking the lid. The article storage structure for a small boat includes a downwardly recessed mounting bracket provided forwardly of the display panel and rearwardly of the article storage box. An engaging member is provided on the mounting bracket.

Abstract: A jet-propulsion watercraft, comprises a steering position sensor for detecting a steering operation of a steering operation means. A steering means adapted to be subjected to a steering assist mode control, when a signal indicating that the steering position sensor has detected the steering operation is received from the steering position sensor. A control device that gives a signal to the steering position sensor and receives a signal indicating that the steering operation means is or is not steered from the steering position sensor, and the signal from the steering position sensor is set equal in level to the signal given from the control device to the steering position sensor when the steering operation means is not steered.

Abstract: A fairlead and cam cleat assembly for a sailing vessel is provided, in which the fairlead at the entrance of the cam cleat is of inverted U-shape, allowing a line passing through the cam clear to be bent at severe angles relative to center line or normal entrance of the line into the cam cleat.

Abstract: A breach filling apparatus for plugging a hole in a wall that includes an air supply assembly, a converting assembly connected to the air supply assembly for converting air pressure to lineal movement, a component storage assembly for storing fluid components of a foaming material therein and expelling the components upon lineal movement by the converting assembly, and a plugging assembly for plugging a hole through a wall structure. The plugging assembly comprises an inflatable flexible bladder having an outer wall defining an interior space for receiving the fluid components and expanding in size from a collapsed condition to an expanded condition. The plugging assembly has a mixing tube in fluid communication with the storage assembly and extends into the interior space of the flexible bladder with a plurality of apertures for expelling the components into the interior space of the flexible bladder.

Abstract: A personal watercraft includes a hull and an engine. The hull defines an engine compartment and the engine is disposed within the engine compartment. A waterproof electrical component container is disposed in the engine compartment. The container can include two internal compartments, one being more water-tight than the other. The container can also include an aperture defined in one of the external surfaces of the container, through which an electrical component inside the container can be accessed when the aperture is open.

Abstract: An air pump having a minimum number of parts. The air pump is built in the inflatable body of an inflatable product. The air pump consists essentially of a pump body, an air inlet provided on the pump body for introducing air outside the inflatable body into the pump body, and an air outlet also provided on the pump body for introducing the air from the pump body into the inflatable body.

Abstract: A buoyant platform (10) for dogs that is adapted to be releasably connected to an above waterline structure (100) wherein, the buoyant platform (10) includes a pair of flotation arm members (21) (22) having a generally rigid platform member (40) connected across the spaced inboard ends of the flotation arm members (21)(22) and a ramp member (30) suspended between the flotation arm members (21) (22) wherein, the ramp member (30) has an outboard end that is provided with a generally U-shaped spacer bar (36) that defines an enlarged submerged ramp entrance and which is operatively connected to the spaced outboard ends of the flotation arm members (21) (22).

Abstract: A handbell having an improved clapper assembly. The handbell includes a bell body in which the clapper assembly is mounted, and the clapper assembly has a compact construction including a yoke secured to a closed end of the bell body and a clapper mounted for swinging movement relative to the yoke along a path defining a forward swing direction and a back swing direction. The clapper has a head for striking the bell body and a pivot block pivotally mounted to the yoke. The pivot block carries at least one energy absorber that is engageable with the yoke during at least part of the swinging movement of the clapper for controlling the swinging movement of the clapper in one of the forward swing or back swing directions. Preferably, the clapper carries a pair of energy absorbers.

Abstract: The present invention relates to a bookmark for finding a desired page of a multi-page readable item such as a book or magazine having a plurality of pages bound along inner edges thereof, and disposed between opposed covers, said bookmark having a planar elongated section terminating at an upper curved hook-like extremity configured to extend, when said bookmark is in use, from said bound inner edges over the back of said readable item, an inner edge of an outer leg extension connected to said curved section said inner edge is substantially parallel to said inner edge of said elongated section. The present invention also relates to a second use of a bookmark as a coupon and/or a greeting card, to an advertising device comprising such a bookmark, and to a method for advertising such a bookmark.

Abstract: The invention refers to a teatcup liner, a teatcup and a milking member. The teatcup liner is mountable in a teatcup shell, having a first end and a second end, such that in the mounted state it extends through the teatcup she 1 and forms an inner space for receiving a teat and an outer space between the teatcup shell and the teatcup liner. The teatcup liner also includes a grip area which has a non-circular shape in cross-section and is arranged to be gripped by a grip portion of the teatcup shell such that the grip area is surrounded by and abuts the grip portion. The teatcup liner has a connection portion for connection to a teatcup claw and includes structure for defining a rotary position for the teatcup liner in relation to the teatcup claw.

Abstract: A static feeder system for supplying feed aggregate to animals and birds. A constant and controlled amount of protein pellets, grain, seeds, etc., is supplied to multiple feed stations within an environmentally protected bulk container. A bulk container is used as the primary storage hopper and appropriate cut-outs are made on the base periphery of the container equal to the number of feed stations desired. A single piece of material is inserted to provide the sealed walls and the base shape for each feed station on the drum periphery. The base absorbs and distributes the bulk load from the hopper and funnels it to the drum base. The base component and the multiple funnel component moldings to form a two component assembly which provides internally protected feed pockets that control the quantity and shape of the emerging feed aggregate flowing from the bulk container.

Abstract: An improved poult box for transportation of newly hatched turkey poults. The box has an open top, a bottom joined by opposing sidewalls and at least one box divider. Positioned on the box divider is a removable poult feed tray which rests over the divider and presents feed at approximately eye level of turkey poults.

Abstract: An all weather animal drinker for horses in stalls of a stable or outside in pasture and/or for other animals inside of a barn or outside of a structure in an unprotected environment. The all weather animal drinker is effective to be used inside a stable or barn or outside in an area subject to all types of climatic elements so as to provide potable water to animals or poultry under extremely hot or severely cold weather conditions. The all weather drinker includes a plurality of wells or reservoirs for circulation of temperature controlled water therebetween by use of a heating element along with various plumbing connections to operate at temperatures as low as minus thirty degrees Fahrenheit.

Abstract: The invention relates to a method for improving conditions in closed circuit seafood and fish farming, comprising the following steps: a) at least part of the water from at least one of the rearing ponds (1) is recycled, whereby said water is treated one or more times and purified (3, 4, 5) before it is re-injected into said pond; b) the water recycled during the recycling path indicated in step a) is mixed with a new supply of water (10); c) all or part of the recycled water (21, 22) undergoes ozonization and, wherever applicable, the new supply of water (20) also undergoes ozonization either partially or in full before it is mixed with the re-circulated water.

Abstract: The invention is a self-storing pet enclosure intended for use on a mounting wall outside of a pet door or window. In the stowed configuration, the enclosure is substantially flush with the mounting wall, making it well-suited for applications such as a recreational vehicle, travel trailer, tent trailer, or mobile home. In the deployed configuration, it provides at-will access for a pet to the enclosure, which, in one embodiment, is constructed primarily with wire-mesh panels. This gives the pet access to a well-ventilated, essentially outdoor area. The self-storing feature obviates the need for any additional storage space to keep the enclosure when not in use. The methods of deploying and stowing are simple and do not require any tools or complicated procedures, making the invention easily to use.

Abstract: A dog is exercised on a conventional a treadmill by locating the dog on the treadmill by providing a support base mounted on the ground underneath the base of the treadmill and held in place by the base of the treadmill and an upstanding support member extending from the support base at the front end of the treadmill, and confining the dog within an enclosure supported in cantilever manner by the support member and extending rearwardly therefrom so as to be supported by the support member over the walking surface such that the dog is positioned within the enclosure on the walking surface. The enclosure has a front wall and side walls extending from a bottom edge close the walking surface and within the side edges thereof to a height above the dog to restrict its vision.

Abstract: An animal treat dispensing and training device formed of a resilient material and defining a closed end and an elliptically shaped, slightly convex, dispensing end having an arcuate slot extending about the lower periphery thereof such that upon squeezing the dispenser adjacent its dispensing end, the slot is caused to open allowing one or more treats to be readily dispensed therefrom. Upon releasing the pressure on the dispenser, it returns to its prior disposition, closing and sealing the slot to again secure the remaining treats within the dispenser. A bell is attached to the device for attracting the attention of the animal to be trained whereby the user can shake the dispenser to alert the animal to a command and dispense the treat with the simple squeezing motion of the same hand to effect patterned response learning.

Abstract: An animal communication device is provided which is designed to solicit animal responses based on at least two of the five major senses. The device includes a module having associated therewith a plurality of physically perceivable attributes related to the senses. The animal activates the device by depressing a housing cover which activates a switch. Alternatively, a motion detector is used to detect the presence of the animal. In both instances, a record/playback device is activated so that a pre-recorded message which corresponds to the physically perceivable attributes of the module is then played back.

Abstract: A body excrement collection device for domestic animals such as a dog is shown. It includes a harness for mounting to the body of the animal and it has a bracket located juxtaposed to the animal's anus. A disposable collection bag is removably mounted to the bracket for collecting the excrement. A urine collection bag is also removably mounted to the harness for collecting urine discharge from a male animal. The waste collection bags are further retained in place with fixed pouches located adjacent to the mounting of the bags. The pouches provide safe protection to the bags as well as support of the weight bags when they are filled. A back flow preventing valve is provide in the urine collection bag to prevent spillage of the urine.

Abstract: A cylinder liner for an internal combustion engine provides a method of replacement of spent cylinder liners, wherein the cylinder liner includes a generally cylindrical body having a flange extending radially outwardly defining a shoulder. The shoulder provides a positive stop in an axial direction against a surface within a cylinder block of the engine. The body has an engagement portion adjacent the shoulder. The engagement portion is necked down from the flange and has lower and upper portions providing an interference fit within the cylinder block. The lower and upper portions of the engagement portion are separated from one another by a channel that extends substantially about the circumference of the body. The channel provides a passage for fluid flow between the lower and upper portions to facilitate cooling of the engagement portion.

Abstract: A rotary engine including a cylinder shaped housing, a rotation body rotating in the housing, an oval guide part located at the center of the rotation body being prominently formed from the cylinder shaped housing. A axis of rotation being formed in monolithic structure with the rotation body penetrated through the cylinder shaped housing and the oval guide part, an induction hole, an exhaust hole, and an ignition plug or a fuel supply device in selection up to the engines. At least one of operation rooms being furnished with air hole and located in the rotation body, and each of pistons being at one side of the operation rooms to be rotated, wherein a tail and a front of said pistons circumscribe with the oval guide part and a guide bar inscribing with a guide surface of the cylinder shaped housing through a guide roller at a shaft stick connecting said pistons.