Abstract: The invention concerns prefabricated buildings built up of transportable prefabricated room elements each being a cell-like structure having four faces and comprising a floor panel, load-bearing columns attached thereto, and a roof or ceiling supported by the columns. In one construction in which the columns are provided at corners of the floor panel, one corner is void of a column so that when the room elements are mounted face to face, with the column-less corners meeting, an unobstructed floor area results. In another construction, a column is omitted at an intermediate point in the length of one face. The room elements are constructed at a factory, and a temporary support is inserted at each location at which a column is omitted. The room elements are transported from the factory to the building site and there assembled face to face into storeys of a building in which the room elements of each upper storey are supported on the columns and temporary supports of the room elements of the next lower storey.

Abstract: An arrangement for holding cremation ashes in which the apertures into which the ashes are to be placed are preformed and are positioned so as to leave a front decorative face unbroken until needed whereupon the face can be broken so as to gain access to the aperture and very quickly thereafter be covered by a commemorative plaque.

Abstract: A building unit. The unit comprises a panel with a flange extending substantially normally from each of at least two opposing sides. Attachment means are formed in the flanges so that one panel can be attached to a panel formed with similar flanges to construct a strong, easily erected building that can be of large area and easily insulated.

Abstract: A concrete structure in which a post-tensioned concrete slab is supported by columns, each column being surrounded or partly surrounded by an area of concrete in the form of a hollow inverted pyramid, the column passing through the apex of the pyramid. The area concerned is formed integrally with the remainder of the slab and is of substantially uniform thickness sloping downwardly from the surrounding concrete towards the column at an angle .theta. to the horizontal such that tan .theta. lies in the range of 0.1 to 0.25 or in the case of a column near an edge or corner of the structure 0.1 to 0.35.

Abstract: A decorative partition or like curtain wall structure is disclosed which can be formed by stacking a number of elementary glass blocks within a generally rectangular supporting frame. Each glass block has at least top and bottom faces contoured correspondingly for interfitting engagement with similar faces of the upper and lower blocks. The opposite lateral faces of each block may also be contoured correspondingly for interengagement with similar lateral faces of the blocks on both sides. Vertical bracing rods can be used to increase the stability of the glass blocks.

Abstract: An integrally molded one-piece ornamental plastic shutter having marginal portions providing peripheral front surfaces and inner and outer top, bottom and side surfaces. A plurality of discrete slats extend between the inner side surfaces. The slats slope downwardly and are parallel to and spaced from one another. Their lower edge portions are extended rearwardly to simulate the appearance and the rigid feel of the slats of a conventional wooden shutter.

Abstract: A roofing shingle consisting of an upper layer of composition roofing material, a lower layer of waterproof roofing felt, and an intermediate layer spacing the upper and lower layers apart, all of the layers being firmly bonded together. The intermediate layer may function to provide a dead-air space for purposes of heat insulation, or may consist of tubular members permitting free circulation of air between the upper and lower layers. The composite structure of the shingle gives it a bending strength highly resistant to curling or other damage by high wind, and the lower layer may be extended to underlie adjacent shingles in the same course, so as to provide a waterproof under-layer for the upper layers.

Abstract: A tile for lining an ingot mould or a hot-top box for the ingot mould has a back face for abutting the mould or box wall and four regions defined by the profiling of the front face. The lower region and a higher region are shaped so as to enable the molten metal within the mould or box to solidify with a "bottle-top" structure. An upper region above the higher region is shaped to maintain any anti-piping compound completely covering the molten metal as it solidifies. There is a top region above the upper region and the top region is of constant cross-section. The lower, higher and upper regions are shaped so that in the lined mould, or box a cavity is formed which decreases in cross-section from the top of the mould or box to a minimum cross-section,the cavity gradually widening in cross-section below this point. The tile may be made in two portions to assist transportation, the tile being assembled in situ.

Abstract: A construction element adapted particularly for use in the securement of insulation batts or boards between framing or studding members is disclosed. The element has a generally U-shape and comprises an elongate central body section of a length to be received between two adjacent stud members of standard spacing without deformation. The ends of the body section are angled with respect to the body section providing lateral arms of a length less than the depth of the stud members, and pointed flanges extend from the lateral arms for driving penetration into the studs.

Abstract: The method of making an expansion joint for roads and buildings is described which is particularly suited for structures employing poured concrete slabs or precast concrete panels or slabs, the joint including a stabilized foam strip to both sides of which a slab or panel is assembled the outer or upper face of the strip providing a gaging surface or face, the strip having a readily removable outer portion for application of caulking or sealant material after removal of the outer portion in the space thus provided.

Abstract: A reinforced horizontal slab having high bearing strength is created on the surface of the ground by initially forming a plurality of discrete vertically elongated reinforced zones in situ in the ground with their tops adjacent ground level and then covering the ground over and between the zones with a surfacing material constituting a slab that rests on the tops of said zones and on the ground therebetween. Each zone is a downwardly tapered concrete column having at least one vertically oriented reinforcing metal bar embedded therein.

Abstract: A sash or a door has a vertically adjustable top rail by which the vertical size of the door or window is adjusted to suit the opening in a window frame or door frame, there being an adjusting device by which the top rail is selectably positioned. The adjusting device includes a supporting member for being secured to a vertical surface beneath the top rail, a wing projecting horizontally therefrom and disposed at one side of the supporting member, and an adjusting screw carried by the horizontal wing and engageable with the top rail from below.

Abstract: A package making machine of the vertical form, fill and seal variety has an electrical control system allowing the length of the package or bag made during each machine cycle to be controlled easily by manual adjustment of a control knob. In particular, the folded web tube from which packages are made is moved through the machine by a tube feeder driven during only a portion of each bag making cycle, the length of time during which the tube feeder is operated during each such cycle being varied to vary the package length. In addition to this control of package length via control of the tube feed time per bag making cycle, the electrical control circuitry may also include circuitry for controlling the package length in response to photoelectric detection of registration marks printed at regularly spaced points along the length of the web from which the tube is made.

Abstract: A packaging machine includes means for withdrawing insert blanks from a hopper and for prebreaking the parts which are detachably held in the planes of the blank and for subsequently manipulating each blank into partially set-up condition and for moving the partially set-up blank downwardly and around the necks of a group of bottles in such manner as to fold end tabs foldably joined to the partition tabs into flat face contacting relationship with the associated partition tabs by engagement of the end tabs with the necks of the associated bottles.

Abstract: Poultry articles are advanced on an upwardly inclined conveyor one at a time through a wing and neck training jig mechanism which forms each such article into a packaging configuration, and, at the top of the upwardly inclined conveyor, tilted downwardly to advance by gravity into a stretched open flexible packaging bag at a packaging station.

Abstract: The present invention relates to method and apparatus for forming bundles of articles wrapped in a tubular wrapper including an upper panel having an upper flap at each end thereof, a bottom panel having a bottom flap at each end thereof, and a pair of opposed side panels, each having a side flap at the end thereof, and apparatus for forming an end closure at each end of the bundle, which includes a pair of folding wings for forming corner fold lines between the bottom flaps and their adjacent side flaps respectively, the fold lines at the time of their formation extending substantially parallel to the bottom panel, the folding wings also folding a portion of the side flaps inwardly, a folding shoe for folding the bottom flap inwardly to partially cover the side flaps, an adhesive nozzle for forming a line of adhesive extending across the bottom flap and partially across each of the side flaps, an upper flap forming shoe for completing the inward folding of the side flaps and for folding the upper flaps inwar

Abstract: The present invention relates to an automatic tobacco harvester and to a defoliator assembly therefor, the tobacco harvester being of the type that is readily adaptable to connect directly to a conventional three point hitch of a farm tractor. The automatic tobacco harvester and defoliator assembly therefor is of the "multi-pass" type in that the defoliator assembly of the harvester can be used to prime or defoliate only a certain level of leaves from the stalks during tobacco harvesting operation while leaving unripened leaves on the stalks. As the lower priming are removed from the stalks, the defoliator assembly is accordingly moved upwardly to accommodate other priming levels during the course of the tobacco harvesting season. The defoliation of the tobacco leaves is accomplished by a pair of defoliator units or assemblies carried by a frame structure in lateral spaced apart relationship in order that a tobacco stalk row may pass therebetween.

Abstract: Power grass shears detachably attached to a handle: the handle includes a rod extending in the cutting plane; a connection between the shears and the rod to enable the shears to be rotated around the rod; the connection comprises various arrangements of a pin, and detent like means for enabling the shears to be held at various rotative positions.

Abstract: A drive means and mounting therefor for converting rotational drive motion to linear reciprocatory motion for driving tool means in linear reciprocatory motion relative to frame or cutting bar means. The drive means includes a wobble shaft drive assembly mounted directly on the cutting bar, the drive assembly having a drive shaft with the typical axial offset portion, and with gimbal means including a generally "U" shaped yoke member coupled to a drive bearing which is secured to the axial offset shaft portion. Connecting arm means are arranged in generally axially aligned relationship with the tool means, and first and second ball joints are utilized to couple the yoke to the reciprocating tool means. In this fashion, the cutting bar provides a rigid mount for the wobble shaft drive means and positive vibration-free drive motion is provided.

Abstract: A mower using two knives which counterbalance one another and which can be removed from, and replaced in, the machine manually by an operator positioned behind the cutter bar: and which can operate throughout an arc of the cutter bar from substantially vertical above the horizontal to substantially vertical below the same; said knives and their co-operational components being protected from extraneous matter with the exception of the essentially exposed shearing elements.

Abstract: A raking machine that displaces crop lying on the ground has at least one, preferably two, raking members that rotate on upwardly extending axes. Each raking member has a felly-like or circular member around which tines or other crop gathering elements are displaceably mounted. The circular member can be a cylindrical or conical wall that is deformable or flexible during rotation so that tines secured by pivots or bolts near the bottom of the member can move in axial, radial or tangential directions responsive to ground undulations and/or control means, allowing crop to be deposited in a swath or at a predetermined point along the circumference of the raking member. The circular member can be foldable responsive to the control which can be driven along a track and unfolded to deposit crop as desired. Also, side-by-side raking members can have tines pivoted in assemblies in which crank arms are contacted by control means or elements on an adjacent rake wheel to turn the tines and deposit crop.

Abstract: Apparatus for forming a yarn reserve and for moving yarn back and forth in open-end spinning devices. This type of device has at least one spinning turbine, a yarn delivery opening, and a pair of delivery rollers opposite the opening. A yarn guide rod has guide elements and is located downstream of the delivery opening in the direction of yarn movement. The yarn guide rod is displaceable in a direction transverse to the axis between the opening and the delivery rollers. This rod defines a deflection device for diverting the yarn from the axis. A drive is provided for driving the yarn guide rod and is in interruptable connection therewith. The drive moves the guide rod back and forth and moves the guide rod to a further position for providing a yarn reserve.

Abstract: A device for distributing softening liquid to a yarn during the process of balloon twisting the yarn after the yarn has emerged from the spindle or from the core of the spindle including a container, at least one feeder means for feeding liquid, at least one chamber integrally fixed to an external portion of said container and a coordinated set of seepage holes present in the surface of said container communicating the inner surface of said container with said chamber wherein said chamber is supplied with liquid under adustable pressure.

Abstract: This invention is applicable for carrying out the doffing operation of several types of fly frames such as a fly frame provided with an upper rail having a plurality of flyers in suspended condition and a mechanism for driving these flyers therein, and a fly frame provided with a spindle rail and a bobbin rail disposed at a position above the spindle rail in such a condition that the bobbin rail can be displaced vertically during the building motion. According to the doffing method of the present invention, when it is required to carry out the doffing operation, the bobbins containing a full yarn package are relatively displaced to a position free from the corresponding flyers and the engagement of the bobbins with the corresponding bobbin driving mechanisms is released. Next the bobbins containing a full yarn package are carried toward a longitudinal end of the fly frame in a space above the arrangement of the bobbin driving mechanisms.

Abstract: Automatic device for loading and unloading identical objects e.g. textile or yarn supports, on at least one machine and for conveying said objects between the machine, a take up area and a feed area for use particularly in the automatic doffing and donning operation of textile machines, and more especially, machines with vertical spindles, such as synthetic yarn drawing machines.The device includes at least two groups of cars having gripping and laying means. The first group is used for removing treated objects e.g. bobbin with yarn winding thereon, from the machine and conveying them to a take up area, the second group for conveying objects to be treated e.g. empty bobbins, from the feed area and positioning them on the machine.

Abstract: The engagement of a rotating drive for the ring of a spinning machine, as seen in U.S. Pat. No. 3,738,094, is improved by placing the drive disc upon a pivoted block, which is controlled by a pitman and a cam lever working against a steel plate.

Abstract: A device is disclosed for detecting yarn breaks in drawing frames and spinning frames comprising a permanent magnet attached to the ring support of the textile machine and an electromagnetic impulse detector also attached to the ring support, close to the path of the traveler which is made at least partially of a ferromagnetic material, said impulse detector being connected, through an amplifier, to a yarn cutting device positioned upstream of the feeding rollers and of the yarn stretching wheel. The electromagnetic impulse detector consists of a coil wound onto a ferromagnetic core.

Abstract: A process and associated apparatus for controlling the rotational speed of a spinning or twisting ring in a spinning or twisting machine during four phases of operation. The first and second phases of operation correspond in time to the period during which the spindle of the machine associated with the ring goes from rest to a predetermined operating speed. The third and fourth phases of operation correspond in time to the period during which the spindle is returned from its operating speed back to its rest position. While the spindle is driven to its predetermined operating speed, the traveler rotates relative to the ring during the first phase of operation causing the ring to accelerate and rotate in synchronism with the traveler during the second phase of operation. During this second phase both the traveler and ring accelerate.

Abstract: A reset system for a digital electronic clock of the multistage counter type. Means are provided for deriving from the mains alternating current timing pulses at a frequency substantially higher than 1 Hz and a frequency divider chain derives from these timing pulses, resetting pulses at a frequency higher than 1 Hz and stepping on pulses for the seconds counter at a frequency of 1 Hz. The timing pulses are converted into gating signals by capacitative keys and resettable monostable circuits. The resetting pulses are applied to the counters through AND-gates controlled by the resettable monostable circuits and through OR-gates, the latter receiving also the pulses for stepping on the counters.

Abstract: An electronic timepiece assembly for automatically correcting the time displayed by a digital display electronic timepiece is provided. A first time standard electronic timepiece accurately counts present time, such standard electronic timepiece including a transmitter for selectively transmitting setting signals representative of the present time counted by the time standard timepiece. A further digital display electronic timepiece includes a timekeeping circuit for producing timekeeping signals and digital display means for displaying the present time in response to the timekeeping signals. The further electronic timepiece includes a receiver for selectively receiving the setting signals transmitted by the time standard electronic timepiece transmitter, and correction circuitry coupled to the timekeeping circuitry for automatically correcting the count of the timekeeping circuit in response to the setting signals selectively received by the receiver.

Abstract: A digital display electronic stop-watch control circuit for facilitating the control of the start, stop, lap and reset functions in an electronic stop-watch is provided. The control circuit is provided for use in an electronic timepiece having counter circuitry for producing elapsed time signals, memory circuitry for storing said elapsed time signals and display circuitry for displaying either elapsed time or stored time in response to the elapsed time signals produced by the counter circuitry or in response to the stored time signals produced by the memory circuitry being respectively applied thereto. The control circuit of the instant invention is characterized by being coupled to the counter circuitry, memory circuitry and digital display circuitry. First and second manually operated switching circuits are respectively coupled to the control circuit.

Abstract: A wristwatch of the digital type in which there is switch means including a movable member visible from the front of the watch and in which the movable member has to be manipulated deliberately into a predetermined position in order for the switch means to cause energization of the digital display on the watch. The watch is preferably provided with two transparent front walls between which the switch means is located. The movable member may take the form of a ball or other conductor member which is moved into engagement with spaced contacts when the watch is moved to a normal position for viewing and the ball is manipulated, while the watch is in that position, into engagement with the contacts. In one form of the invention, a mercury globule is used instead of a ball. Moreover, instead of having open contacts, the movable member may be a ball which is effective when manipulated to the predetermined position to engage the plunger of a precision snap switch and cause closure of the switch.

Abstract: A combined watch and wristband is provided by an injection molding defining a central watch casing and auxiliary casings on either side of the central casing, the molding having opposite ends extending outwardly from the auxiliary casings encircling around towards each other to terminate in spaced relationship to define a wristband integral with the watch casing. An integral metallic stamping of similar exterior contour overlies the injection molding and is provided with central and auxiliary openings in registration with the central casing and auxiliary casings respectively. The metallic strip includes integrally formed spring contacts extending oppositely from diametrical peripheral portions of the central portion of the strip to overlie the auxiliary casings and provide electrical connections for batteries in the casings. The assembly is sonic welded together and one extending end of the metallic stamping serves as a substitute for a normal link in the clasp structure.

Abstract: The balance cock 35, the train wheel bridge 36 and the barrel bridge 37 are positioned with great precision and univocally on the baseplate 40 by means of an arrangement comprising a pair of feet 38 on every bridge, elongated holes 39 in the baseplate being engaged by feet 38, and securing screws 42, 44, 45 driven into the baseplate 40. Each screw has a conical face on its head and it passes through an opening 41, 46 of the bridge. The conical face of each screw engages the edge of the corresponding bridge opening at one point, thus exerting a thrust on the bridge in the direction of the arrows causing each one of the two feet 38 of a bridge to bear against a plane side wall of the corresponding hole 39 and one foot of each bridge to bear against the rounded end face of its hole.

Abstract: A pneumatically actuated valve for controlling the flow of fluid from an inlet passage to the cylinder of a reciprocating piston machine wherein the valve is opened by the fluid pressure in the cylinder as the piston approaches top dead center and closed by fluid pressure from the cylinder supplied to the top of a plunger connected to the end of the valve stem when the piston is preselected distance below top dead center.

Abstract: Apparatus for reducing the pressure loss imposed upon the working medium gases flowing through an exhaust case of a turbine machine is disclosed. Various construction details which reduce the cross flow of secondary air from the pressure side of one case strut to the opposing side of the adjacent strut are developed. The loss reduction system is built around vortex generators which energize the flow boundary layer at the inner wall of the flow path for the working medium gases.

Abstract: A device for injecting and igniting a fuel in a flow of air, comprising a bular duct in which are generated an internal flow of rotating air and an intermediate flow containing fuel which is sandwiched between the internal flow and an external flow of rotating air, in which ignition is effected by a central electrode placed in the axis of the tubular duct and defining within the latter an annular channel which narrows around the downstream end of the central electrode to form an annular gap of uniform width along the entire extent of its circumference, in such a way that a difference in electrical potential applied between the electrode and the tubular duct causes sparks to jump between the free end of the electrode and the tubular duct across the internal flow and the intermediate flow.

Abstract: Tetracene, H.sub.2 N.C(:NH).NH.NH.N:N.C(:NH).NH.NH.NO (C.sub.2 H.sub.8 N..10 O), that is pelletized by dead pressing at 10,000-30,000 psia is employed as a preferred gas generant for near-neutral combustion products. The chemical, tetracene, is almost completely nitrogen-containing, and has only negligible amounts of carbon or oxygen which results in producing dominant combustion products of nitrogen. Tetracene is employed as a gas generant in a method which produces near-neutral combustion products that are compatible with a variety of oxidizers (e.g., IRFNA, ClF.sub.3, ClF.sub.5, etc.) and a variety of fuels (e.g., UDMH, MHF, etc.). Contact of the combustion products with the oxidizers or fuels does not interfere with their normal functioning.

Abstract: An outboard marine propulsion apparatus has a rotor unit axially displaceable between forward and reverse operating positions. In the forward position, concentric horizontal paths through the apparatus are provided for rearward discharge of the propulsive water stream and the engine exhaust gases; in the reverse position, paths are provided for discharging the propulsive water stream forwardly and the exhaust gases in radially outward directions ahead of the rotor unit. For reverse operation one of the concentric flow paths is closed by an automatically actuated butterfly valve responsive to the axial displacement of the rotor unit. A dashpot device controls the axial sliding speed of the rotor unit.

Abstract: Slurried rocket propellants and a spinning rocket motor wherein the propents have viscosities which enable them to form central cores when spun in spinning rocket motors, the motor having a diaphragm-like base plate which assists in transferring forward momentum through the propellant.

Abstract: A heavily insulated, hydraulically actuated, compound poppet valve is positioned in a main gas stream between a gas generator and a rocket motor so that the gases must flow around it and be diffused thereby. It is also capable of selectively valving a variety of ports from the gas generator into the rocket motor to achieve desired ignition effects; and it can turn off flow completely between the two motors and prevent excessive heat from the rocket motor from entering the gas generator.

Abstract: A rocket motor nozzle closure for controlling the initial release of prese from the rocket motor nozzle to reduce the occurrence of high pressure shock fronts which are detrimental to the weapon operator. The mass and geometry of the nozzle closure are predetermined to fit the desired motor performance. The release of motor pressure is controlled by the rate of change of momentum of the nozzle closure.

Abstract: The rate of additional air delivered to an engine slow fuel passage is controlled in response to an exhaust gas sensor output representative of the air/fuel ratio of the input charge into the engine. An additional air bleed passage into the carburetor has two inlets of different diameters, the larger one of which is provided with a valve operable to close the larger inlet in accordance with a sensed idle condition of the engine.

Abstract: A sensing means is provided to monitor combustion of fuel and air supplied to an internal combustion engine, for example by sensing ignition pulses, combustion pressure, or cylinder temperature. Signals, as sensed, are compared and if one of these signals is extreme with respect to an average and, at the same time, the temperature of a catalytic reactor in the exhaust system becomes excessive, supply of the combustible fuel-air mixture to the specific cylinder is interrupted. To permit starting with unequal heating of cylinders, interruption of supply of the combustible fuel-air mixture is cancelled during starting, as sensed, for example, by closing of the starting switch, or low temperature in the engine system.

Abstract: An electronically controlled exhaust gas purifying system for use with an internal combustion engine of a motor vehicle including not only a catalytic converter but also an auxiliary thermal reactor which is located upstream of the catalytic converter and by which exhaust gases emitted from the engine is re-combusted to the extent that the catalytic converter is not destroyed or damaged by the residual unconsumed compounds in exhaust gases discharged from the thermal reactor. The system is provided with an electronic control means for shutting off the flow of secondary air to be mixed with the exhaust gases emitted from the engine both when at least one of the temperatures of the catalytic converter and the thermal reactor rises above a critical value at which they would be destroyed or damaged, and when the engine is under cranking operation. The electronic control means retards the spark in order to heat the exhaust gases when the temperature of the reactor falls to its reaction commencement temperature.

Abstract: The exhaust system of an internal combustion engine which includes one or several, sequential catalytic reactors is provided with a bypass channel through which some portion of the exhaust gases may be diverted. This diversion takes place whenever the gas flow rate becomes so high that the operating temperatures of one or more of the reactors would be exceeded. The gases flowing through the bypass channel are cooled prior to their reintroduction into the main exhaust pipe channel. The diversion of part of the gas stream into the bypass channel is accomplished with the aid of a control current of exhaust gas tapped off from the exhaust line and conducted back upstream to the junction of the main channel and the bypass channel. The force of this control current deviates the exhaust gases from their normal path and causes them to flow into the bypass channel.

Abstract: A catalytic converter for treating poisonous exhaust gases from an engine consisting essentially of highly purified copper. The catalytic converter is produced as an elongated, generally cylindrical body having a helically threaded outer surface and is mounted between a cylinder head and a manifold.

Abstract: A scoop-trimmed fluid coupling wherein the transmitted torque decreases continuously with increasing ratio of runner speed to impeller speed at each degree of filling of the working circuit with liquid. During acceleration of the runner, the scoop tube is moved by its actuator from a "circuit empty" to a "circuit full" position in several stages and at different speeds so that the torque which is transmitted by the coupling during acceleration of the runner remains substantially constant. If the load upon the runner varies from acceleration to acceleration of the runner, the operation of the actuator during acceleration of the runner is modified by a controller system which monitors the energy requirements of the prime mover for the impeller or the acceleration of the runner.

Abstract: Dual double acting servomotors hydraulically pressurized are provided wherein the pistons have shunt valve means actuatable at limit of movement of the pistons to shunt high pressure fluid at one side of the piston to the low pressure side of the piston then being exhausted. This results in relieving the stress otherwise effected against steering mechanism limit stops by continued application of high pressure feed to the pressurized chamber. The system encompasses steering control and shunt circuit valve means automatically actuated by differential pressures so as to direct pressure and exhaust flow selectively to and from the chambers of the respective cylinders from an engine driven pump and a manual metering pump for operating the steered wheels of heavy duty vehicles and which valve means effects bypassing of the engine driven pump pressure feed directly to one servomotor while feeding the combined pressures of that pump and the metering pump to the other.

Abstract: Disclosed herein is a drive and swing control system for an excavator wherein the swing pump may selectively direct fluid to the drive motors of the vehicle when the swing motor of the vehicle is not in use.