Abstract: The gear selector fork comprises a body forming a pair of support plates having respective coaxial through-holes for supporting the fork slidably along a stationary rod of the gearbox, a pair of prongs fixed to the body and forming at their distal ends respective actuating portions able to operate a sliding coupling sleeve of the gearbox, and an actuating nose fixed to the body so as to impart to the fork the sliding movement along the stationary rod for engagement of the desired gear. The body and the prongs are formed so as to allow two forks with identical body and prongs to be mounted on the same stationary rod being superimposed at least partially in the direction of sliding along the stationary rod. The prongs are welded to one of the support plates of the body and extend on the same side as the zone where they are welded to the body, relative to the axis of the through-holes.

Abstract: An adjustable steering column assembly having a column jacket defining a longitudinal axis and moveable in at least one of a telescoping direction and a tilting direction is disclosed. A bracket is coupled to the column jacket with at least one pivot shaft coupled to the bracket along a pivot axis. A lever is mounted to the pivot shaft and rotates between a set position for preventing movement of the column jacket and an adjustable position for allowing movement of the column jacket. A locking device engages the lever and moves between a locked position and an unlocked position in response to rotation of the lever between the set and adjustable positions, respectively. A restrictor encircles the bracket, the column jacket, the lever and the locking device for resisting against an outwardly radial force produced by the locking device when in the locked position.

Abstract: A handlebar assembly for a bicycle includes a handlebar tube, a sleeve, a clamping member and an end cap. Thus, the clamping plate of the end cap is clamped between any two of the clamping member, an end portion of the sleeve and an outer wall of the handlebar tube without obstructing the contact space between the clamping member and the outer wall of the handlebar tube so that the clamping member can directly clamp the handlebar tube completely or indirectly clamp the handlebar tube locally through the clamping plate of the end cap, thereby enhancing the clamping effect of the handlebar assembly.

Abstract: A structural connector for providing a structural interconnection between the housing of a gear unit and the housing of an electric motor, the structural connector being of a modular type including a base member adapted for connection to at least one of the housing of an electric motor and the housing of a gear unit, and at least two side wall members, the side wall members having a motor end adapted for connection to one of an electric motor housing and the base member and a gear end adapted for connection to a gear unit housing, the side wall members lying at least in substantial part in a plane inclined at an angle of at least 60 degrees relative to a plane containing at least a part of the base member, and the side wall members being spaced apart by connection to an interposed housing.

Abstract: A turbine engine power generation system includes a gearbox that receives rotational drive from a low spool through an input gear, in one example. The gearbox includes first and second clutches that are coupled to an input shaft of an auxiliary component, such as a generator. First and second output gears are driven at different rotational speeds by the input gear and respectively associated with the first and second clutches. An actuator selectively engages at least one of the first and second clutches to select between first and second rotational speeds in response to a command from a controller.

Abstract: An index table assembly includes a rotary table, a frame separated from the rotary table in the direction of a rotational axis of the rotary table, a clamping device for bringing the rotary table into contact with the frame by moving the rotary table along the rotational axis, a first bearing disposed between the rotary table and the frame, and an urging device disposed between the first bearing and one of the rotary table and the frame and pressing the first bearing against the other one of the rotary table and the frame at least when the rotary table rotates.

Abstract: An improved jaw apparatus is provided for making or breaking a tubular pipe connection. The jaw includes a head adapted to receive a hook having a threaded shank end. The threaded shank end is engaged at the head end opposite the hook end by a hydraulic powered nut adjustment assembly. The adjustment assembly may be operated by a control unit to allow for the automatic opening and closing of the jaw for receiving pipes of varying diameters.

Abstract: A crankable hand wrench includes an elongated main handle having opposite end portions, opposite faces extending between the opposite end portions, and a slot in the main handle nearer to one than the other of the opposite end portions, a wrench head attached to and extending from at least the other of the opposite end portions of the main handle, and a crank assembly incorporated by the main handle. The slot is formed through the main handle between the opposite faces thereof so as to open at the opposite faces. The crank assembly includes a crank handle movable between a stored position in which the crank handle is disposed within the slot and a deployed position in which the crank handle extends from the main handle so as to form a substantially L-shaped crank therewith.

Abstract: A c-clamp locking device has been specially modified to depress brake drum springs while the brake shoes are replaced. The device has opposing c-clamp jaws, one of which has a blunt end for compression against the surface of the brake drum, and the other of which has a ring for compressing the brake drum spring. The jaws are adjustable relative to each other. A locking mechanism enables the device to lock in place when the brake drum spring is appropriately compressed, allowing the mechanic to use both hands unencumbered when replacing brake shoes.

Abstract: A powered driver and methods are disclosed, the driver including a head having a gapped jaw and housing a motor driven drive transfer assembly for operating a rotatable split socket engageable at a threaded connector. A reaction unit is movably maintained through the head, and a probe is associated with the reaction unit. The methods of this invention include setting a selected rotational limitation at the driver relating to fitting characteristics, operating the driver to cause relative rotation of a connector nut located in the socket and connector body engaged by the reaction unit. One of a plurality of operational modes for driver operations is selected and relative movement of the head and reaction unit are monitored during driver operation. The driver is controlled so that driver operation ceases when a selected combination of events related to operational mode selected and at least one of rotational limitation setting, monitored relative movement or driver operation occurs.

Abstract: A double-fulcrum torque wrench including a tubular body, a head section for fitting with a socket or a screwing member and a flexible mechanism including a flexible section. The flexible mechanism is connected with a rear end of the head section and disposed in the tubular body. The head section protrudes from a front end of the tubular body. When a wrenching force is applied to the wrench, the flexible section of the flexible mechanism is flexible. The head section and the flexible mechanism are connected with the tubular body via two fulcrums and the flexible section is positioned between the two fulcrums. By means of the double-fulcrum design, the action force at the force application end of the wrench is equal to the action force at the resistance end. In addition, the flexure of the wrench and the actual wrenching torque applied to the wrench can be more accurately and sensitively measured.

Abstract: A process for hobble lathing, and preferred process applications, for the cutting of workpieces with non-circular or discontinuous contours on programmable lathes. The use and combination of a special program e.g. of thread cycles and hobble values for the diameter and/or the longitudinal axis or the pitch, the angle of the spindle, in option of a reciprocal-step technique and interleaved machining sequences opens up virtually infinite possibilities. The preferred applications of the process allow special threads to be cut on screw-in bodies, e.g. screw-in artificial hip joint sockets and bone screws for example with neutral or virtually any angle of pitch or relief of the thread blade as well as e.g. internal and external contours on workpieces for circular wedge connections. A particularly beneficial hip joint socket is presented comprising so-called screw or threaded surfaces.

Abstract: Disclosed are a sheet punching apparatus and a method for controlling the same in which the side end position of a sheet, its rear end position, a hole position, and the detachment state of a punch portion are sensed only by two sensors, and a punching hole can be formed at the exact position of a sheet by means of the two sensors.

Abstract: A rotary cutting unit includes a rotary cutter overlying a rotatable anvil. The anvil includes an axle, at least one anvil portion adapted to co-operate with a knife member of a rotary cutter, and a pair of load transmitting portions adapted to abut a pair of abutment members of the rotary cutter. The pair of load transmitting portions are arranged on each side of the anvil portion. A load receiving member is provided between each load transmitting portion and the anvil portion. Each of the load receiving members is connected to the axle via a bearing. Fluid cylinders apply upward forces to the load receiving members, wherein the total upward force exceeds the weight of the anvil.

Abstract: An anvil drum for a rotary cutting apparatus having a rotary axis comprises an axle on each axial side of the anvil and concentric with the axis. Each of the axles is adapted to receive a bearing, and an anvil surface substantially concentric with the rotary axis. A reference portion is provided including an axial reference surface coaxial to the axis and a radial surface perpendicular to the axis. At least one connection device is provided for connecting a cover member on each axial side of the anvil so as to cover the bearing, respectively. An anvil assembly is further provided with such an anvil drum and the bearings, each cover member being provided with a blind opening adapted arranged coaxially with respect to the axis.

Abstract: An blank firing attachment, with enhanced operating life, for use with gas-operated weapons; wherein, a tungsten carbide stem extending from the attachment is inserted into the bore of the weapon's barrel, the stem having a cross-sectional area less than the cross-sectional area of the bore, to provide backpressure within the barrel to properly cycle the weapon.

Abstract: A magazine for shotgun shells for use with a shotgun including an open frame housing having a generally flat front and a generally flat rear portion connected and separated by spacers. The flat front and flat rear portions each include an annular groove, the annular groove forming an annular path along which the shells travel. A rotatably mounted cog wheel for carrying the shells along the annular path and a coil spring for rotating the cog wheel such that shells can be manually loaded into the magazine against a force generated against the spring and automatically dispensed by the spring.

Abstract: A protective shield apparatus for a light armor vehicle having a turret includes a generally flat base plate mounted to the turret; an armor plate fixed to the base plate and including a front panel, a first side panel, a second side panel and a rear panel, the armor plate being canted vertically outward from the base plate; each of the first side panel, second side panel and rear panel including a ballistic glass window; a rear bracket connected at one end to a rear of the base plate and at another end to the turret; and a z-bracket connected at one end to the rear of the base plate and at another end the z-bracket bears against the turret.

Abstract: The invention relates to an automatic dispenser for infused beverages made from powdered coffee or from pre-packaged capsules comprising, inside a housing: an infusion group (1) containing an infusion chamber (2) having a bottom and an opening (3) and being able to receive a pressing plunger (5), actuating means (7) for effecting a sliding movement relative to the pressing plunger (5) and/or said infusion chamber (2) relative to one another, starting from a position of rest, in which the plunger is located outside the chamber, and up to a working position inside the infusion chamber, and an ejecting plate mounted inside the infusion chamber (2) in a manner that enables it to be displaced between the bottom and the opening (3) of the latter by means of a drive device, and; a device (20) for ejecting the cake consisting of coffee grounds or ejecting infused capsules when said ejecting plate is brought to the level of the opening (3) of the infusion chamber (2), this ejecting device comprising an ejecting arm (2

Abstract: A frozen drink maker is provided having an ice shaving unit with a rotatable ice chute. A plurality of blender units are positioned about the ice shaving unit, each having a removable blender jar for receiving shaved ice therein. A programmable controller is operably connected to the ice shaving unit and each of the blender units for controlling the operation of the ice shaving unit and the blender units. The programmable controller includes a plurality of preprogrammed routines to make a plurality of different frozen drink, wherein the programmable controller can be selectively set to make one of the plurality of frozen drink in each of the blender jars.

Abstract: A bag dispenser feeds a bag assembly for supplying bags to a work station for manual removal from the bag assembly as needed. Each bag is printed with information such as packing date or packing location prior to reaching the work station.

Abstract: A method of controlling a powder sprayer having a fan jet nozzle configuration in a printing press, includes controlling the fan jet nozzle configuration as a function of operating parameters of the printing press. A printing press having a powder sprayer is also provided.

Abstract: A slapper detonator which integrally incorporates an optical wavequide structure for determining whether there has been degradation of the explosive in the explosive device that is to be initiated by the detonator. Embodiments of this invention take advantage of the barrel-like character of a typical slapper detonator design. The barrel assembly, being in direct contact with the energetic material, incorporates an optical diagnostic device into the barrel assembly whereby one can monitor the state of the explosive material. Such monitoring can be beneficial because the chemical degradation of the explosive plays an important in achieving proper functioning of a detonator/initiator device.

Abstract: A loading tube for use in a perforating gun is disclosed which eliminates the necessity for utilization of plastic jackets to restrain shaped charges. The loading tube comprises a first tubular member and an engagement structure in the first tubular member in which the primer ends of the shaped charges may be installed. These engagement structures may be a center plate or inner tubular members. In each of the disclosed embodiments, a detonating cord connects the primer ends of the shaped charges which are installed in the loading tube.

Abstract: Disclosed is a static bearing conveying apparatus having magnetically preloading and motional error correcting functions. The apparatus comprises a guide having a guide surface formed on one side of the guide facing a table, magnetic preload units provided between the guide and the table to generate preload, and a motional error correcting control unit comprising a controller to control the magnetic preload units and a power amplifier to apply electric current according to a control signal from the controller. Each of the magnetic preload units comprises a permanent magnet, a core collinear with magnetic fluxes from the permanent magnet, an electromagnetic coil wound around the core, and a fixing bracket having the permanent magnet supported by the table. The apparatus is simplified in structure of the table and the overall guide, and reduces motional errors of the guide by correcting errors of a floating gap of the static bearings.

Abstract: A break down desk is disclosed to facilitate an efficient storage disassembly and transport in compact shipping containers. The break down desk may be quickly and easily assembled and disassembled without the use of traditional tools and fasteners and with a minimal of assistance. A removable desktop is detachably connected to and across a pair of opposing side panels. The removable desktop includes a primary writing surface at the front, a file/paper stacking surface located behind the primary writing surface, and a pair of detachable side wings. A wire management channel, through which to receive an electrical wire from an electrical apparatus, runs around the desktop between the primary writing surface, the file/stacking surface, and the side wings. A cable routing trough, to guide the cable from an AC power strip received therewithin towards a source of power, is detachably connected between the pair of opposing side panels below the desktop.

Abstract: Apparatus for adjusting the longitudinal and angular position of a work surface support leg. The leg passes through a channel in a cap held via a spring and pin to a base affixed to the work surface. The leg's angular position is adjusted by rotating the cap, which moves a tooth through a series of mating depressions. The longitudinal position is adjusted by moving the leg which has a series of notches that mate with a locking tooth in the cap. A knob interfaces with the cap via a rotary cam having high and low steps and a matching cam rider. The low step allows separation between the cap and base and the high step locks the cap to the base, thereby locking in the adjustment setting for the leg.

Abstract: Aspects of the present invention involve an extension adapted to extend from a planter, such as the seed tube portion of the planter, into a seed furrow in order to engage seeds being deposited therein, where such engagement may involve deflecting the seeds toward the vertex region of the furrow and/or firming the seeds in the furrow. The extension includes or supports a fluid distribution arrangement such as a hose or the like, which may be separate or integral with the liquid supply hose of a planter. The fluid distribution arrangement is adapted to supply fluid, such as liquid fertilizer, insecticide, water, etc., to the furrow. A valve is provided in the fluid flow path in the region of the fluid distribution arrangement to control the distribution of fluid to the furrow. The valve may be a check valve that allows fluid flow therethrough when fluid pressure exceeds a value such that the valve opens, and prevents fluid flow when the pressure decreases below the valve activation pressure.

Abstract: A cloth pressing device of a sewing machine is provided. The cloth pressing device includes a presser bar, a presser foot rotatably coupled to a lower end portion of the presser bar, an elastic member having a base end portion which is supported by the presser bar and a tip end portion which is engageable with a tip side portion of the presser foot to downwardly bias the tip side portion of the presser foot, and an adjusting mechanism operable to move the tip end portion of the elastic member between a position at which the tip end portion of the elastic member engages with the tip side portion of the presser foot and another position at which the tip end portion of the elastic member does not engage with the tip side portion of the presser foot.

Abstract: An embroidery process allowing for a three-dimensional shape to be embroidered in two dimensions, allowing for the cost effective and repeatable manufacturing required for use in surgically implanted medical devices.

Abstract: A scupper plug apparatus is foot-operable, by a person standing next to the scupper, to apply substantially more force for sealing the scupper than is typically achievable through application of force by the hand or arm of a person installing a scupper plug. A resilient body of the scupper plug formed from highly conformable closed-cell foam to closely match the shape of the scupper. A rolling member is used as a cam follower in an actuation arrangement for compressing the resilient body.

Abstract: A push pole for manually propelling boats, including a shaft and a foot. In a preferred embodiment, the foot is flared at the bottom end in an inverted V-shape, and a pivoting pin is located along one side of the foot, and pivots outwardly from the foot so that it may be used to retrieve lures or as a docking hook. When the pin is not in use, it may pivot back into a receiving cavity within the side of the foot, forming a streamlined edge thereof. In one embodiment, the pivoting mechanism of the pin may include a spring to bias the pin in an outward direction, as well as means for locking the pin into the inward streamlined position when not in use. The pivoting pin may be locked into either the extended or retracted position. Further, the foot may be detachable from the shaft in any desired manner, and replaced by a net, paddle, gig, scrub brush, gaff, docking hook or spike that attaches in the same manner as the foot.

Abstract: A payload delivery system for protecting and delivering a payload submerged in a submersion medium includes a containment system. The containment system includes a container and a dehiscing system. The container includes a pressure-resistant shell defining a sealed containment chamber. The dehiscing system is operative to dehisce the shell to open the containment chamber to the submersion medium responsive to a prescribed event and/or a prescribed environmental condition.

Abstract: The noisemaker pennant is a combination pennant or flag and a noisemaker device that enables the sports fan to simultaneously express his or her emotions at an event both visually and audibly. Waving the present noisemaker pennant serves to display the pennant or flag thereon, while simultaneously activating the noisemaker device attached thereto. The noisemaker pennant may have various types of pennants, flags, banners, etc. formed of relatively thin, flexible material, with a sports team logo, player's name, political symbol, etc., displayed thereon. The noisemaker portion may be any of various devices, including, but not limited to, clappers, ratcheting devices, bells, whistles, etc. The noisemaker portion and/or the pennant may be removably secured to the staff, to allow the user to interchangeably install different noisemakers with the pennant or flag. A handgrip is provided on the staff opposite the noisemaker end thereof.

Abstract: The spill-proof coloring container is an invention that because of its unique geometry and design, will when oriented in any position prevent spillage of liquid contents when filled to predetermined amount. Because of the use of vacuum formed sheet in the construction of the container, the container pieces are compactly stackable and are of substantially low manufacturing cost. The container is principally intended for use by young children to facilitate painting pictures and dying objects such as Easter eggs without the mess otherwise associated with painting and dying. The invention is also intended to help avoid the mess associated with pouring paint or paint powder concentrates otherwise encountered when preparing a cup of paint for general purpose painting.

Abstract: An electrostatic coating device (10) comprising a body defining to an interior chamber (13) communicating with the exterior by means of a first coating powder inlet conduit (14) and a second outlet conduit (15) for said powders, a plurality of electrodes (16) and one or more voltage generators (17) connected to said electrodes (16), wherein said electrodes (16) are positioned so as to generate an electrical field inside said second conduit (15).

Abstract: A method is proposed for vacuum-coating a substrate using a plasma-CVD method. In order to control ion bombardment during the vacuum coating, a substrate voltage, produced independently from a coating plasma, is applied to the substrate. The substrate voltage is modified during the coating. The substrate voltage is a direct voltage that is pulsed in bipolar fashion with a frequency of 0.1 kHz to 10 MHz. A wear-resistant and friction-reducing multilayer structure of alternating hard material individual layers and carbon or silicon individual layers is proposed.

Abstract: A system and method for preventing formation of a plasma-inhibiting substance within a plasma chamber is provided. In one embodiment, an apparatus that includes a barrier component configured to be disposed within a plasma chamber. The barrier component includes a wall that defines a plasma formation region where a chemically-reducing species is formed from a fluid. A portion of the wall is formed of a substance that is substantially inert to the chemically-reducing species. The wall prevents the chemically-reducing species from interacting with an inner surface of the plasma chamber to form a conductive substance. The barrier component also includes an opening in fluid communication with the plasma formation region. The fluid is introduced into the plasma formation region via the opening.

Abstract: An animal litter mixture comprising pine wood and silica gel is provided. The pinewood is preferably a sawdust form, although the pinewood may be in the form of fine shavings or compressed pellets. The silica gel may have one porosity or a mixture of porosity. In one embodiment of the animal litter mixture, the silica gel may be an indicator gel that changes colors when the silica is saturated with water.

Abstract: Disclosed herein is a delivery system for the underwater feeding of aquatic life, wherein the delivery system is compact and secured to a user thereby providing ease of use and ready accessibility of the delivery system while the user is engaged in underwater activities. The delivery system further prevents the backwash of water from the aqueous environment into the delivery system when in use. Additionally, the delivery system comprises a food composition for the feeding of the aquatic life that is not readily water soluble and that has a sufficient viscosity such that the food composition will not readily disperse or dissolve when dispensed into the aqueous environment.

Abstract: The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, in an internal combustion engine. The system comprising a rotor element and a stator element, one of said the rotor element and stator element having a closed spiral profile. The spiral profile having a continuous curvilinear portion for at least 270°, and a ramp portion joining the ends of the continuous curvilinear portion.

Abstract: The double action piston assembly is for an internal combustion engine and has a combustion chamber that has a double action piston connected to one end of a central power rod disposed within the combustion chamber. A first intake air port and a first exhaust port are located in the up side of the combustion chamber. A compression chamber is connected to the combustion chamber. A central power rod passes through the combustion chamber into the compression chamber and out the compression chamber. A fuel mixture is fed into the combustion chamber and ignition means adjacent to combustion chamber to ignite the fuel mixture. At the end of each stroke, the compression exhaust valves are opened and the intake ports and the exhaust ports are open to permit air from the compression chamber to pass through the conduits into the combustion chamber for full scavenging of the combustion chamber.

Abstract: An engine includes two or more serially connected air compressors coupled via a crankshaft to an expander piston and cylinder combination. An intercooler device is placed between the air compressors. Compressed air from the compressors flows through a heat exchanger where it is heated by the expander exhaust gas prior to its introduction into the expander cylinder by way of an inlet valve. Fuel is mixed with the compressed air near the inlet valve in an amount suitable to allow for combustion.

Abstract: An oil system for selectively deactivating valves for specified cylinders of an internal combustion engine includes a cylinder head having a lash adjuster oil passage and a cylinder deactivation oil passage. Plugs are coupled to the cylinder head separating the cylinder deactivation oil passage into separate portions. A clearance between a portion of each plug and the head allows a controlled flow of oil to pass from the lash adjuster oil passage to the cylinder deactivation oil passage to purge air from the cylinder deactivation oil passage. A valve is operable to selectively supply pressurized oil to the cylinder deactivation oil passage to deactivate the specified cylinders.

Abstract: The present invention provides a variable valve mechanism that varies amounts of opening and closing of a valve includes a rotating cam, a rocker arm, two lash adjusters, a hydraulic passage, and a switching mechanism. The rocker arm includes an input member and an output member. The two lash adjusters support the rocker arm so that the rocker arm can rock. The hydraulic passage includes an internal oil passage that is provided in an interior of at least one of the lash adjusters, and an arm oil passage that is provided in an interior of the rocker arm and that is connected from the internal oil passage. The switching mechanism uses a hydraulic pressure in the hydraulic passage to perform a switching between a linked state and a released state, and the switching varies the amounts of the opening and the closing of the valve.

Abstract: A variable camshaft timing (VCT) system for an internal combustion engine is described. In one example, the system includes a spool valve that displaces oil from one phaser chamber to another phaser chamber when the spool valve is moved. The system may respond faster than systems that employ a pump to move oil between phaser chambers.

Abstract: A camshaft system for internal combustion engine includes a camshaft having a thrust ring which is lubricated by oil from a control valve which operates a camshaft phaser with lubricating oil, and with the lubricating oil being furnished to the camshaft at crankcase pressure after the oil leaves the camshaft phaser.

Abstract: A head cover assembly for covering a crankcase of an internal combustion engine includes a head cover, a removable cover, a guide, and an integral oil separator. The oil separator includes a labyrinth that defines a flow path that separates oil from crankcase gases passing therethrough. The guide includes a tubular body presenting a passage for which manifold vacuum may draw crankcase gas from the oil separator. The cover includes an aperture. The tubular body is disposed through the aperture such that the outer tube surface is spaced apart from the inner edge of the aperture to define a gap in which separated oil may drain back into the engine for recycling.

Abstract: A variable valve system has a drive shaft having a drive cam, a rockable cam opening/closing an engine valve, a transmission mechanism converting torque of the drive cam into a rocking motion and transmitting it to the rockable cam, a control shaft, and a control cam. When the variable valve system varies a valve lift amount of the engine valve by changing the rocking fulcrum of the transmission mechanism, the rocking fulcrum during a small valve lift control is set in an area outside an arc locus drawn with the drive shaft being a center of the arc and passing through a rocking fulcrum position positioned at a maximum valve lift and also inside an arc locus drawn with a pivot of the one end side of the transmission mechanism being a center of the arc and passing through the rocking fulcrum position positioned at the maximum valve lift.

Abstract: An improved rocker arm cover assembly having an enclosed rocker arm chamber housing and a generally L-shaped bracket for mounting multiple coils to an exterior vertical side wall of the housing, so that the coils are exposed and laterally displaced from the housing. The bottom of the housing includes special seal and flange members to permit sealing mounting to the engine head so that the rocker arm chamber is isolated as a “wet” enclosure from the coil bracket assembly. The housing is mounted directly to the head via a plurality of through bolts. A fully isolated, dual function, oil fill/PCV valve conduit is provided through the top of the housing to permit adding lubrication oil or permitting exhaust of crankcase vapors without contaminating the coils, and permitting independent servicing of the coils. Several variations of coils and coil mounting brackets are disclosed.