Abstract: This invention relates to a method of manufacturing an ignition file for a lighter by a press and a device therefor, more particularly to an improvement of a punching operation of an axial hole for mounting an ignition file. A material pressed into a disk-like configuration is prepared and a concave portion is provided in the approximate center of both sides of the file member. A hole is punched between concave portion having a diameter smaller than that of the concave portion. The fin of the file member caused by punching is absorbed in a gap provided inside the die wall while the fin projecting toward the die hole to be punched is absorbed in said concave portion.

Abstract: An onboard kitchen for an aircraft includes at least one kitchen unit with a counter top, a kitchen sink and a venting hood connected to an air exhaust conduit. A cyclone type separator is connected with its inlet and outlet ports into the exhaust air conduit thus connecting the separator to the venting hood. The cyclone type separator divides the airflow into a clean airflow which is led into a clean air discharge conduit and into a contaminating particles carrying airflow which is led into a discharge pipe connected to a drainage duct which connects the kitchen sink, preferably to a drainage pylon outside the aircraft body. The use of filters is thus avoided and the maintenance costs are minimized.

Abstract: A retrofit power supply/fan unit for IBM PC and XT personal computers achieving lower operating temperatures. The unit is contained in a sub-housing positioned in a rear upper corner of the computer housing. The sub-housing has a rear exhaust opening and the computer housing has generally oppositely disposed air inlet openings. The sub-housing has a top wall with its uppermost portion spaced from the underside of the top of the computer housing about 5/8" and the top wall of the sub-housing having a forward sloping top wall portion downwardly sloping at an angle of about 10.degree. to the horizontal as it extends forwardly to facilitate air flow thereto. A pair of juxtaposed fan openings disposed in the forward sloping top wall portion and a pair of fans in the sub-housing aligned with the juxtaposed fan openings to draw air through the sub-housing, each fan being rated at about 32 cfm.

Abstract: An air guide assembly in the ventilating system of an automotive vehicle comprises an integral air guide element with a multiplicity of air deflection fins, the air guide element being rotatably mounted by means of a ball and socket joint to a housing. The housing is insertable in a sleeve-like receiving element on a dashboard panel.

Abstract: A ventilator grill comprises an outer frame made of synthetic resin having an inlet opening and outlet opening, at least one stationary vane extending across an interior of the outer frame, a plurality of through holes provided in each half of the outer frame, arcuate recess provided in an end face of the respective stationary vane, which opposes the inlet opening of the outer frame, and which has a circular arc, and at least one movable vane extending across the stationary vane, which is provided at opposite sides thereof in opposing side walls of the halves of the outer frame with journal shafts received within the through holes for permitting the movable vane to swing about an axis of swing extending through a center of the circular arc of the arcuate recess, and which is provided at one end portion thereof toward the inlet opening of the outer frame with a portion which is in sliding contact with the arcuate recess.

Abstract: An automatic aeration window comprises a movable frame with three parallel window panes separated by gaps, a first lower passage and a second lower passage at the bottom of the window and an upper intermediate passage connecting the two at the top of the mobile frame. In order to enable a light-weight construction of the movable window frame, the first lower passage, connected to an external opening on the outer face of the window and to a first lower opening, is provided in the fixed frame of the window. A closing flap controlled by a puller is also mounted in the fixed window frame, while the second lower passage preferably also passes through this fixed frame. The invention may be used in windows to provide aeration and good acoustic and thermal insulation.

Abstract: A popcorn popper of the heated air flow type wherein the popping chamber is shaped to have a plurality of radially arranged holes along a bottom periphery with the lower wall portion being of gradually smaller diameter and the bottom having a raised portion and wherein by a diffusing device which directs the heated air inward from the outer periphery and upward through the holes in the bottom of the chamber, a more even and efficient heating is attained.

Abstract: Food press has a cooking plate which rests upon a grill for heating and rests upon a food material for the cooking thereof when the food material is on a grill. A skirt surrounds the top and sides of the cooking plate, and the cooking plate floats with respect to the skirt. A manual handle is provided to lift the skirt and lift the cooking plate. A pin in the cooking plate engages in a slot in the skirt so that the cooking plate can be held in a raised position within the skirt to hold it above the grill for some cooking circumstances.

Abstract: A steam cooking device having an outer shell with an open top and an open bottom. A cover closes the open top. The open bottom is sized to fit about a heating element. A support member is provided within the outer shell, for supporting food to be cooked. This support member is spaced above the bottom of the outer shell to provide space within the shell for a water container.

Abstract: An apparatus for blanching and cooling vegetable products comprises a perforated product conveyor belt having an upper belt run which extends and travels through a treatment tunnel defined in a casing of the apparatus. A layer of vegetable product is transported on the upper belt run through successive treatment zones defined in the treatment tunnel. The treatment zones are provided with arrangements of spray nozzles which are located to spray liquid onto the upper belt run and the layer of product thereon. The nozzle arrangement comprises upper nozzle units adapted to spray liquid on the top surface of the product layer, and may also include lower nozzle units adapted to spray liquid onto the underside of the perforated upper belt run. In a blanching zone, the product layer is sprayed with a blanching liquid which is recirculated and maintained at a desired blanching temperature. The blanching zone is followed by a cooling zone in which the product layer is cooled by spraying a cooling liquid thereon.

Abstract: A salad spinner dryer attachment is provided for a food processor having a base housing containing an electrical motor drive with a deck located on top of the base housing for removably mounting a working bowl thereon in predetermined engaged fixed position and having a tool drive shaft projecting vertically above the deck which drive shaft is rotatable by the motor drive at a first rotational speed around a main vertical axis of rotation. The attachement has an upstanding auxiliary bowl removably mountable upon the deck in place of the working bowl in the predetermined engaged fixed position. This auxiliary bowl has an uninterrupted side wall and a bottom trough for catching and holding any water which drains down its inside surface. A slotted basket is rotatably mountable in the auxiliary bowl to rotate around the main vertical axis at a second rotational speed substantially less than the first rotational speed of the tool drive shaft.

Abstract: A printing apparatus for printing on both surfaces of a chip type article comprises first and second transfer paths for transferring the chip type article, an article feed device for feeding the article to the first transfer path, a printing device for printing on the article on the first transfer path and on another article on the second transfer path, an article removing device for removing the printed article on the second transfer path, and an article reversing device for reversing upsidedown the printed article on the first transfer path and for delivering to the second transfer path.

Abstract: A postage meter has a print drum with print wheels which are shiftable to select the value of the postage. The positions of the print wheels are controlled by moving gears (transmission members) connected to respective print wheels one at a time. A locking device locks each of the gears except the one one being displaced. All the gears may be locked during print cycling.

Abstract: Screen printing apparatus for directly printing indicia on a substrate, such as a cap, comprising a screen print assembly including a replaceable screen holder, means for introducing fluid under constant pressure to said screen holder, and means on said screen holder for mounting a sensitized screen, especially a curved screen, upon which viscous ink can be placed; and means for mounting a substrate for printing thereon by contacting said screen to said substrate and introducing fluid under pressure to said holder to force said ink through said sensitized screen to print indicia on said substrate.

Abstract: A printing press cylinder having an improved plate lock-up which comprises a locking bar that is disposed within an undercut slot in the cylinder, which bar grips the end of the plate and can be turned and locked in position to keep the plate solidly agaunt the cylinder and form a very narrow non-print gap.

Abstract: A propellant-charge pack has an annular envelope having an outer wall extending along and centered on an axis, a pair of axially spaced end walls extending transversely inward from the axis and having inner peripheries centered on the axis, and an inner wall defining a clear axially throughgoing passage between the inner peripheries of the end walls. The envelope is generally axially symmetrical about the axis, that is it is formed as a body of revolution or of regular polygonal section, and is substantially symmetrical to a plane perpendicular to the axis midway between the end walls. A relatively easily ignited primer charge forms a part of the inner wall symmetrical of the plane and a propellant charge fills the envelope between the walls outward of the inner wall. The primer charge is of such high combustibility, compared to the diameter of the passage, that the entire primer charge, even of a stack of such packs, will be ignited before they burn through and set off the respective propellant charges.

Abstract: Disclosed herein is a sidewall core gun attached to the lower end of a drill string, enabling the taking of core samples from within a deviated borehole. The gun also includes an improved charge assembly, including a detonatable core and one or more deflagratable cartridge assemblies for propelling a coring bullet from the gun to the sidewall of the borehole. Coring bullets imbedded in the sidewall remain connected to the gun via steel cables, whereby the bullets may be retrieved by raising the drill string.

Abstract: A firing train function indicator 10 for a self neutralizing recoverable land mine 16. An explosive bolt 20 is used to hold a helical spring 44 in a compressed state. The upper portion 30 of the bolt 20 is attached to one end of the spring 44 and the other end 32 of the explosive bolt 20 is attached to base 38 of indicator 10. A highly visible inverted cup-shaped flag 48 is also attached to the upper portion 30 of the explosive bolt 20. The detonator 18 of the explosive bolt 20 is fired when the mine 16 self neutralizes to separate the upper portion 30 of the bolt 20 from its lower portion 32. The spring 44 is then free to expand raising the flag 48 above the self neutralized mine 16. A flag 48 so deployed, identifies the location of a self neutralized mine 16 and is a reliable indicator to recovery personnel that the mine 16 is in fact safe to approach and recover.

Abstract: A shotshell cartridge adapter is disclosed that enables safe firing of subcaliber rim-fire shot cartridges in conventional shotguns. In the preferred embodiment, the invention comprises an outer hull shaped like a standard shotgun shell; an adapter tube fixed within the hull; and a cylindrical firing pin mechanism removably housed within the lower end of the tube. This firing pin mechanism has a recessed piston-shaped firing pin with a chisel-pointed protrusion that strikes a shot cartridge loaded in the adapter.

Abstract: A shaped charge bomb whose liner is partially coated with a metal whose dity is greater than that of the liner which coating extends from an inner end on a circumferential line of the liner that results from the intersection of the inner side of the liner with a notional cylinder coaxial with the liner and having a radius not exceeding R/4 where R is the inner radius of the liner, the thickness of the heavy metal coating at each point meeting the equation ##EQU1## where T.sub.c is the coating thickness at a given circumferential line x, T.sub.1 is the liner thickness, .rho..sub.c is the coating density, .rho..sub.1 is the liner density and .beta. is the collapse angle at the circumferential line x.

Abstract: A sabot arrangement is produced in accordance with an improved manufacturing method. The sabot arrangement includes a rotational symmetrical sabot body having a central axial bore and radial separating grooves or slots. The radial grooves or slots divide the sabot body into a plurality of equal segments. These slots nearly sever the sabot body into separate segments, so that a material bridge remains near a forward edge and a material bridge remains near a rear edge of the sabot body, which material bridges function as fracture zones.

Abstract: Transportation apparatus comprises a guideway and at least one vehicle on the guideway. The vehicle has an integral load-carrying compartment. The guideway includes a divergent junction and selectively operable switches to direct the vehicle to follow either the left hand or right hand path out of the junction. The vehicle has a bottom support adjacent the bottom of the load-carrying compartment and at both sides of the vehicle for engagement with lower support rails on the guideway. Cantilever supports engage upper guide surfaces provided on the guideway. The cantilever supports are duplicated on both sides of the vehicle and include one and the same upper follower, for engagement with an upper guide surface on the guideway, common to both of the cantilever supports so that the vehicle may be supported in cantilever fashion from either side on a single lower support rail and a single upper guide surface.

Abstract: A conveyor system for transporting items between specified work locations within a building is disclosed. The conveyor system includes a continuous guide track including a continuously moving drive chain and individual floor supported carts that move along the guide track. The individual carts have a retractable drive pin assembly that cooperates with disengaging rails mounted adjacent the guide track to allow the carts to stop at certain locations along the guide track. The individual carts have a retractable guide pin assembly that cooperates with selectively retaining means mounted thereon and cams mounted adjacent the guide track to retract the guide pin to allow the carts to be rotated at work stations or oriented in a sideways configuration to save space along the guide track. The carts also have a platform for supporting the items that is adjustable in height.

Abstract: A trolley is provided as a carriage with rollers running on a rail, and a cable suspension in form of a flexible loop element is suspended from this trolley carriage. The loop element has its end interconnected in the area of suspension, and carries in its lower portion a curved cable supporting platform against which the cable is fastened by means of a flexible clamping band extending through lateral slots of the loop element.

Abstract: A shelf construction for use with an elevating type of hospital bed is disclosed. The shelf construction includes an upper bracket having a depending flange for removably resting upon the rail of the bed. A shelf is pivotally interconnected with the bracket through front and rear links to permit angular adjustment of the shelf relative to changes in angularity of the rail to thereby maintain the shelf in level orientation. One of the links is provided with an elongated, longitudinally aligned slot to facilitate the angular adjustment of the shelf relative to the upper bracket. In a second embodiment of the invention, the shelf and the upper bracket are affixed in a preselected angular offset relationship to allow the shelf to be angularly offset from the rail of the bed.

Abstract: A waste product feeder in which when waste products are charged through a hopper into a trough are transported by a screw and then discharged, they are successively scraped by a scraper in a predetermined quantity or volume.

Abstract: An emergency exhaust system (59) is provided for a mobile incineration system (10). A hinged gate (76) controls access to the emergency exhaust system (59), and operates only upon the sensing of a malfunction in one of a plurality of critical incineration system components (114, 36, 56) by sensors/relays (122-126). A malfunction as sensed by Sensors/relays (122-126) causes the power to be cut through switch (98) to the main incineration system components (114, 36, 56, 46, 116, 118, 22). In a preferred embodiment, the emergency exhaust system (59) comprises a plurality of water sprayers (64) to cool the volatile waste combustion products, and a granulated activated carbon column (68) to remove hazardous substances.

Abstract: This invention relates to a method and apparatus for controlling the burn of coal, or fuel to produce the desired output of heat ranging from under 10,000 BTU per hour to over 150,000 BTU per hour, and the collection of said heat. It depends on the sizing of the grate, firebox and combustion area to produce the desired burn, the vertical exhaust pipes and soot and ash traps for self-cleaning and storing waste, the automatic controls for self-maintenance, the air washing system for cleaning the exhaust air of pollutants, the water heating coils and tanks for storing the produced heat, the chimney insulated compartments with gravel for accelerating heat absorption, and its own chimney that makes it a self-contained unit that can be located for use inside or outside of most any selected existing house or building.

Abstract: A pulverized coal burner device capable of ensuring stabilized combustion of pulverized coal even when mill load is low.

Abstract: A cyclone separator is disclosed for effectively separating a gaseous or liquid medium from solid particles or for separating two or more similar substances by size or weight. The cyclone separator includes a chamber having a cylindrical member closed off by lower and upper end walls. A first inlet is tangentially formed in a lower portion of the cylindrical chamber and provides a means for introducing a first substance, for example, a carbonaceous fuel. A second inlet is also tangentially formed in a lower portion of the cylindrical chamber above and at an inclined angle to the first inlet. A second substance, for example, pressurized air, can be routed through the second inlet so as to combine with the fuel to form a combustible mixture. The mixture is circulated at a high velocity in an upwardly extending spiral path to promote burning and to produce combustible gas and ash.

Abstract: A pneumatic mixture which has a relatively high content of pulverulent materials in the propulsion air is formed in a single metering means. This mixture is propelled through a common primary pipe to a distribution head in which the mixture is divided into secondary currents which are delivered respectively to each of the injection points. A supercritical speed is imparted to the mixture in the distribution head.

Abstract: A lockstitch sewing machine, particularly for use as an insole stitcher, having a stitching mechanism arranged for cyclically repeating operation and including a horizontally mounted rotary shuttle, has the shuttle arranged for rotation in a constant direction at a cyclically varying angular velocity such that a major part of each rotation, e.g., a complete rotation takes place in a minor part of each cycle, e.g., one quarter of the cycle. The rotation of the shuttle is provided, e.g., by a Geneva cam.

Abstract: Apparatus and method utilized in sewing apparatus for aligning a fabric with multiple needle heads in a sewing operation such as quilting together a backing material, quilting material and cover material having stripes for aligning the stripes with the multiple needle heads of the sewing apparatus consisting of a plurality of crowned split collars selectively positioned along one or more tensioning bars to gather the material for alignment of the stripes with the multiple needle heads.

Abstract: This invention makes a proper calculation to an amount of supplying a lower thread to be required to forming of a stitch with stitching information in relation with changing of a needle dropping position from a preceding stitch to a present stitching, so that the lower thread is forcibly drawn out in accordance with said calculation, and makes a proper calculation to tension of an upper thread optimum to forming of a stitch with stitching information so as to determine the optimum upper thread tension in accordance with said calculation, or makes a calculation to the amount of supplying the upper thread optimum to forming of a stitch with stitching information so as to draw out the upper thread in accordance with said calculation.

Abstract: In a sailboat having at least two hulls which are rigidly connected in parallel spaced arrangement by a platform, the hulls are provided at least at the bow with a bulge-shaped or drop-shaped design which runs into a wedge or blade shape astern. The lateral plan formed by the area of the longitudinal section of the hulls below the immersion level is such that the lateral point of gravity is shifted astern. For this purpose, the mast fixture is disposed in the rear half of the boat and, finally, the operating position is formed between the outer hulls and provided of the mast fixture.

Abstract: The invention relates to a ship that is adapted for operating in ice-filled waters and has a general frame form defining a substantially horizontal bottom surface, two side surfaces, a stern and a blow portion that breaks the ice advantageously. The bottom surface comprises one or a greater number of cavities, extending to or located on both sides of the longitudinal symmetry plane of the ship, in which cavity or cavities there are arranged movable sheetlike elements. The sheetlike elements have a first position, in which said elements form a generally continuous part of the bottom surface, and a second position, in which said elements form, below the bottom surface, a substantially vertical wedge-shaped structure that converges in the direction from the stern of the hull towards the bow of the hull. The elements are provided with power units which bring about movement of the elements from one position to another by turning around a swivelling axis arranged in the longitudinal direction of the elements.

Abstract: The invention comprises a stepped bottom structure of a boat, in which the steps (5) are mainly straight. The number of the steps is from 2 to 4, preferably 3, and the angle between the mainly straight edge (8) of the step and the keel (1) is from 20.degree. to 60.degree., preferably from 20.degree. to 45.degree.. In addition, the bottom structure includes rising laths (10), in which the side (19) facing the keel (1) is narrower than the side (20) facing the side of the boat.

Abstract: In a multiple-hulled marine craft an opening (313) which can be closed in air-tight and water-tight manner by pivotable flaps (314) is located in the transverse deck (312) beneath the connection structure between the two floats (311) (FIG. 2).

Abstract: An improved structural sail with grid members appropriately positioned to resist aerodynamic loads.

Abstract: A sail device characterized in that a sail frame is formed of upper and lower horizontal beam members fixed horizontally to a mast and linealy bent at bending points, holding pillars that are rotatably supported at the above mentioned bending points by these horizontal beam members and that hold a part of a developed sail, and supporting pillars arranged and fixed at both right and left ends of the above mentioned horizontal beam members and assembled rotatably with respect to the horizontal beam members and rotation stoppably by stopper means,at least, between the above mentioned upper and lower horizontal beam members, the lower horizontal beam member is formed to be of a horizontally expanding shape,a sail formed of a flexible material is reinforced by fitting a plurality of self-standing rods in the vertical direction of the sail and the above mentioned self-standing rods can be supported at the lower ends on the above mentioned lower horizontal beam member.

Abstract: A vessel, such as a ship, a boat and the like, comprises an inner hull having a longitudinal horizontal axis and a transverse horizontal axis, an outer hull surrounding the inner hull and arranged movable relative to the latter about at least one of the horizontal axes, and a plurality of ball bodies arranged between the inner hull and the outer hull so as to allow the movement of the outer hull relative to the inner hull about the at least one horizontal axis.

Abstract: The present invention relates to a collapsible boat. The boat is comprised of a flexible water-tight hull-and-deck skin including a deckside cockpit aperture; a bow and forward frame unit for insertion through the aperture toward the bow of the hull-and-deck skin; and a transom and aft frame unit for insertion through the aperture toward the stern of the hull-and-deck skin. A central tensioning unit is provided for insertion through the aperture, the tensioning unit cooperates with the bow and forward frame unit and the transom and aft frame unit so as to simultaneously urge the bow and forward frame unit and the transom and aft unit apart to thereby stretch and tension the hull-and-deck skin. A rigid case assembly is provided for insertion into the aperture and cooperates with the bow and forward frame unit, the transom and aft frame unit and the tensioning unit, the case forming a cockpit for the boat.

Abstract: A fingerprint card holder includes a body member defining a flat support surface and a front, back and side walls extending downwardly therefrom. A front guide bar is carried by the body member and extends outwardly from the front wall a distance sufficient to accommodate a fingerprint card so that the card can be inserted between the guide bar and the front wall and then bent back against the support surface to expose a desired row of fingerprint receiving spaces. The guide bar includes inwardly extending studs which are biased against the front wall to hold the card while it is being bent. A releasable adhesive is secured to the support surface to releasably hold a card thereagainst.

Abstract: Cleaning process for the gas nozzles of a welding torch in which the nozzle is guided to a processing position in which it is scraped clean by rotating blades and in which it is then sprayed with an antiadhesive agent after the blades are lowered.

Abstract: The invention concerns a coating device for coating a travelling web travelling past the coating device. A chamber for coating composition has an exit mouth, and pressurized coating composition exits the mouth into an application space between the mouth and the web. A doctor blade for the web is downstream of the application space. A damming strip with an edge spaced from the web is upstream of the application space. The damming strip defines an exit slot for excess coating composition in the application space. A flow body in the application space includes feed channels leading from the mouth toward the web and includes passage openings extending generally transversely of the feed channels for conducting the rotary flow of coating composition through the application space. The flow body has obstacles above the exit ends of the feed channels which make the flow therearound more uniform.

Abstract: A device for cleaning a milking system, with an air separator, a rinse reservoir, a suction line that leads from the rinse reservoir to the air separator through a milking station, and a pressure line that leads from the air separator to the rinse reservoir. The top of the air separator communicates with a vacuum line and the bottom communicates with the pressure line through a conveyor pump and with a shut-off valve in the section of the suction line between the rinse reservoir and the milking station. To improve the cleaning effectiveness of the known device and prevent the air separator from getting overloaded, the shut-off valve is remote-controlled and is connected through a control line to controls that are also connected to the conveyor pump and to a level sensor in the air separator through other control lines. The controls close the valve when the pump is on and open it when the pump is off.

Abstract: A birdhouse for purple martins comprising a tubular enclosure having within a plurality of vertically stacked floors secured to at least one vertical partition forming at least two nesting compartments per tier, each compartment having an opening and a perch. Several enclosures are secured together by a hollow post having a vertical series of hooks mounted thereon to correspond to vertical series of brackets mounted to the back of the enclosure. The birdhouses are suspended from a pole high above the ground via a pulley system. The partition and the floors can be removed for easy cleaning by sliding out either the top or bottom of the enclosure. Alternatively, the birdhouse may be constructed by vertically stacking a series of identical interlocking units topped with a roof, wherein the nesting compartments are situated radially about a central opening which is adapted to slide axially onto a mounting sleeve.

Abstract: There is disclosed a collapsible calf trim chute, also called a grooming chute, having a rectangular base fitted with a floor and a pair of upright pivoting rectangular members, one a head-stall-end and the other a tail-end member, each of which are pivotably swingable from a collapsed position on the base into an upright position, the rectangular end member frames being held apart laterally on each side of the chute, when in an upright position, by two-element brace-spacer members, fixedly pivotably swingably mounted near the top of each side of each head-stall-end and tail-end member, respectively, one of such pair of brace-spacer members configurations being of such construction as to permit the other side brace-spacer to be matingly engaged without disengagement of the first described brace-spacer member, a pair of telescoping side-movement restraining bars mounted between each upright end member on each side in a manner to provide freedom to allow angular positioning between the end members to permit gro

Abstract: The head holder of the instant invention is intended for use on a cattle chute, the chute having a vertically elongate opening at one end thereof allowing passage of the head only of animal restrained in the chute therethrough. The head holder includes a head catch for engaging the head of an animal adjacent to the animal's neck and positioning means for positioning the head catch. The positioning means includes a pivotable mount allowing selective positioning of the catch between a head engaging position and a disengaged position and elevating means for selectively raising and lowering the head catch.

Abstract: A soundproof type engine working machine comprising a soundproof casing containing therein an engine and a working machine such as for example a dynamo driven by the engine and situated one behind another in the rotary axis direction. In this engine working machine, a main air inlet port into the soundproof casing is formed in a bottom portion of the soundproof casing and at the side where the working machine is situated, a fan for cooling the working machine is mounted to the working machine and a fan for cooling the engine is mounted to the engine, respectively, and a fan cover for covering the engine cooling fan is communicated with a duct covering a cylinder portion of the engine and an exhaust muffler and opened up outside of the soundproof casing at an end portion thereof, a cooling air by the working machine cooling fan being introduced to the duct after the air cooled the working machine. An oil pan cooling air passage is disposed along an oil pan portion of the engine.