Abstract: A dragline excavating machine includes a gearless direct drive AC drive motor for driving each of the hoist and the drag drums in the system. The gearless AC motor is driven using a digital system which receives AC power from the utility system rectifies the power using active front end circuits, and converts the resultant DC to a frequency controlled AC using an inverter circuit. The resultant AC signal is employed to drive the gearless AC motor, resulting in reduced harmonic distortion, unity or leading power factor, and increased efficiency, reduced operating costs, and reduced mean time between failure.

Abstract: An auxiliary hoist sheave assembly comprising a sheave support frame, a mechanism for mounting the sheave support frame to a boom, a lower sheave shaft mounted on the sheave support frame, and a grooved hoist sheave, rotatably supported by and slidable along the lower sheave shaft, the hoist sheave being in contact with a hoist rope, and the hoist sheave fleeting side to side along the lower sheave shaft as the hoist rope follows the hoist drum.

Abstract: A combination greeting card and gift card with a coded information portion is provided to be sold and delivered to a recipient as a unit. The greeting card includes preprinted indicia preferably corresponding to a particular occasion such as a birthday, holiday, graduation or other celebretory event. The coded information portion of the gift card preferably includes a PIN number or a scannable portion which, when an account in a remote computer corresponding to the coded information and the gift card is activated, enables the holder of the gift card to obtain goods or services by access to credit corresponding to the card from a remote database. The gift card is initially temporarily coupled to the greeting card by adhesive, tabs and slits, or a mechanical fastener, and concealed when the front and rear panels of the greeting card are in a closed, substantially parallel orientation.

Abstract: A neon sign arrangement includes a supporting frame, a displaying cover, and a neon light unit. The supporting frame has a first displaying side and an opposed second displaying side. The displaying cover has a displaying character mounted on the first displaying side. The neon light unit includes a neon light tube which has a character sign portion and is supported by the supporting frame, and a power controller which is electrically connected to the neon light tube such that when it is powered up, it forms as a light source to highlight the displaying cover as well as generate a neon light effect at the second displaying side.

Abstract: A visual display consisting of multiple transparent sheets of material in which a color separated image component is reproduced inside each of the optically transparent sheets and are illuminated by a selective discernible light source about the receiving edges of the respective sheets. The sheets are positioned in spaced overlying relationship to one another with aligned image components viewable therefore as a single composite image. The discernible light source can be selectively sequenced to produce light in the range of the respective primary visual colors beyond that of the primary colors from which it is derived on independent sheets.

Abstract: According to one exemplary embodiment, a retail display accessory is provided for assisting a consumer in color coordinating a first article of clothing (e.g., a tie) with a second article of clothing (e.g., a shirt). The accessory is in the form of an article having a front section and an opposing rear section with a slot being formed therebetween for receiving the first article of clothing. The front section has a first indicia section identifying a predominant color of the first article of clothing which is received in the slot and a second indicia section that identifies colors for the second article of clothing that are complementary to the color of the first article of clothing and produce a color coordinated outfit.

Abstract: A holder for an object such as a photograph or a calendar. The holder may include either three or four layers. If made of three layers, there is an object engaging non-slip layer, a layer with magnetic properties that bears against the non-slip layer and an outer transparent or clear layer. A pocket formed between layers is used to receive a corner of the object to be held. This pocket is formed between the non-slip layer and the outer transparent layer. If four layers are used in the construction of the holder, then the transparent layer is folded to extend to enclose both the magnetic layer and the non-slip layer to form a corner object receiving pocket between them. All holders may have a triangular shape with an opened hypotenuse side used to receive the edge of the object to be held. At lease two such holders are normally used to retain an object, although six holders, one at each corner of the object and two at mid length, may be used to provide for greater holding strength.

Abstract: A mechanism, which may be integral with the gun parts or may be manufactured as an after-market item, which permits the butt of a shoulder-fired weapon to be pivoted about an axis substantially parallel to the axis of the gun barrel.

Abstract: A fishing lure 10 having an improved bait holder 12 is generally disclosed in FIG. 1. As illustrated, lure 10 includes an elongate shaft 14 which, as shown, is comprised of a piece of wire, preferably stainless steel, having a thickness such that the shaft generally maintains a linear form, during fishing. Wires with a diameter in the range of 0.029 to 0.035 inches have been found to be satisfactory. In general, the shaft acts as a connector between fishing line 16 and a fish hook 18. As illustrated, hook 18 is a treble hook, but it will be understood that single hooks may also be used. In the illustrated embodiment, and beginning at the line end of shaft 14, a metal blade 20 is shown mounted to shaft 14 by means of a clevis 22 such that the blade will spin around shaft 14 as the lure is drawn through the water. Fishing lures typically include spinning components designed to emit flashes of reflective sunlight.

Abstract: A novel system, apparatus and method of operation for use in watercraft, terrestrially bound motor vehicles and fixed based land applications where water from a live well or bait tank is withdrawn, filtered, climactically controlled and conveyed through a water conditioning unit containing in part a heat exchanging unit with a generally serpentined contour water passageway, the water passageway formed and structured in a manner to allow water, or another fluid within the passageway to abut and surround a generally serpentine form tubular conduit containing a pressurized refrigerant with the water routed within the passageway maintaining continuous contact with the conduit then exiting the heat exchanging unit returned to the live well tank or bait tank.

Abstract: The invention provides a series of lamp-cum-insect exterminators in which guides serve to guide and/or deflect insects towards an extermination chamber. There is a primary light source within the guides which serves to attract insects towards the lamp and a secondary light source within the extermination chamber which serves to attract the insects down the guides into the chamber.

Abstract: An improved plant container hanger for suspension from a support rail, such as a chain link fence, wherein the device may be partially inserted into the fence links to stabilize the container and position a plant container carried thereby in a stable, substantially horizontal, position.

Abstract: A novelty item and method of making same, include a non-germinated dicot seed with a word, symbol, or the like, etched through the seed coating to the cotyledon which remains visible from the time the seedling sprouts through the surface of the soil throughout the germination period.

Abstract: The present invention provides a false bottom insert assembly for use in combination with an oversized planter container. The assembly essentially comprises a support platform for supporting a soil-bound plant, an optional spacer member for supporting the support platform, and an optional moisture-receiving tray for collecting and retaining excess moisture emanating from the support platform and the spacer member via the soil. The platform comprises a peripheral support surface that engages either the container or the spacer member for supporting the support platform at the chosen false bottom level in the planter container. Support ribs are integrally formed to the platform to increase its load bearing potential. The spacer member may be utilized as an optional structure to adjust for variable container dimensions and the moisture-receiving tray may be installed at the user's election to maintain a moisture source in inferior adjacency to the support platform.

Abstract: A system includes a transmitter, a receiver, and a processor. The processor detects a trigger event. In response to the trigger event, the transmitter transmits a detection signal. If the receiver receives a reflected detection signal, the processor determines that a door is in a first position. Additionally, if the receiver receives a reflected detection signal, the processor signals an opener to move the door to a second position.

Abstract: A sliding door security insert assembly installable into an opening made when one sliding door mounted for lateral movement within a door frame is partially opened to define the opening between one door jamb and a facing sliding door stile. A substantially rectangular insert frame includes a lower transverse member adapted to be supported on the lower track while said upper transverse member is adapted to be positioned into the upper track for lateral sliding movement only. An elongated locking shim is positionable between the upper transverse member and the upper track prevents insert frame removal. Offset locking pins attached to one insert frame stile are adapted to be inserted into a mating hole formed into the facing sliding door stile and visa versa whereby the insert frame and the sliding door are connectable together. Full adjustability in height and mating thickness with the existing sliding door edge is also provided.

Abstract: A window that can be opened in multiple manners such as pushing/pulling and rotating outwards by using a sliding pipe assembly, includes a frame assembly and at least two sash assemblies. A horizontal frame in the frame assembly has a cavity with an opening, a guide track mounted on a bottom slab of the horizontal frame cavity, and a pair of subsidiary guide tracks provided on a pair of side slabs of the horizontal frame cavity. Several roller devices are arranged along the sliding pipe assembly and matched with the guide track and subsidiary guide tracks of the horizontal frame. Therefore, the sliding pipe assembly can be moved along the horizontal frame. Furthermore, a hinge assembly fastened to the sliding pipe assembly is provided in one of several stiles of each of the sash assemblies to be used for supporting rotation of the sash assemblies.

Abstract: Articulating window assemblies are provided comprising, in combination, a windowpane and a hinge having a hinge axis. The hinge comprises a first hinge member that cooperates with a second hinge member and optionally with a hinge pin to form a hinge joint. The first hinge member has at least an encapsulation section with at least a first encapsulant void, optionally two or more encapsulant voids. A continuous body of encapsulant overlays at least a portion of an outward-facing surface of the encapsulation section, at least partially fills the first encapsulant void, overlays at least a portion of an inward-facing surface of the encapsulation section and overlaps either at least a portion of an external peripheral edge of the encapsulation section, a portion of a void edge defining a second encapsulation void, or both from both the outward-facing surface and the inward-facing surface. This provides a mechanical grip of the first hinge member by the encapsulant.

Abstract: A sentinel event reduction door comprises a trapezoidally-shaped panel comprising four sides. A continuous hinge is connected to the panel along substantially the full length of a first side thereof. A second side of the panel is adjacent to the first side, wherein the angle defined by the intersection of the first and second sides of the panel is an acute angle. A third side of the panel, the side opposite the side of the panel from the first side, may comprise a pliable material attached thereto.

Abstract: An entry port including at least one cylinder with a lip on the attachment portion surrounding each hole in a plate. The rim surrounding each hole is rolled over a lip on a corresponding cylinder to secure each cylinder to the plate to form the entry port. Each cylinder preferably has a flared circumference on the portion away from the attachment to the plate to allow a boot to be clamped on each cylinder.

Abstract: An attachment bracket for securing a rafter to a sidewall in a bin having horizontal sidewall corrugations has a bracket having first and second attachment portions at right angles to each other. The first portion has a plurality of parallel horizontal corrugation adapted to nest in the parallel horizontal corrugations in an upper portion of a bin sidewall. The second portion extends upwardly and inwardly from the first portion to be secured to the lower end of an inclined rafter that supports a conical shaped roof for the bin.

Abstract: A barrier implement intended for obstructing a route of travel of crawling arthropods along a passageway comprises a sheet configured to circumscribe a passageway along which arthropods crawl. A dimension of the sheet is sized or molded relative to said passageway. An arthropod deterring component associated with said sheet for deterring said crawling arthropods and impeding their route of travel along said passageway. In a method of impeding a route of travel of crawling arthropods from moving along a passageway from a location A to a location B, an arthropod deterring component is associated with a sheet. The sheet separates location A from location B and creates a vermin-impervious barrier therebetween. A route of travel of crawling arthropods from moving from location A to location B is impeded.

Abstract: A system and method of installing a preconstruction support system for a building, according to which the corresponding ends of two piling sections are connected together and an a auger is provided on one or more of the piling sections. The piling sections are driven into the ground in a manner so that a portion of the uppermost piling section extends above ground; and a concrete slab encases the portion of the piling sections.

Abstract: A rollable baffled ridge vent has a top panel with a laterally flexible central portion and edges. Substantially flat wind baffles are supported outboard of the edges and each wind baffle is formed by an array of aligned coextensive rectangular baffle sections. Each baffle section is supported by a pair of buttresses that project from beneath the top panel. Some of the buttresses also extend inwardly toward the central portion of the panel to form supports for supporting the ridge vent on a roof. The ridge vent can be fabricated in roof length sections that can be rolled into rolls with the baffle sections splaying with respect to each other to provide rollability. For installation, the ridge vent is rolled out along the open ridge of a roof and attached with nails. Superior ventilation is provided by the high net free area and flat wind baffle design of the vent while preserving the convenience of a rollable product.

Abstract: A ridge vent for tile roofs. The vent includes first and second sub-flashing portions for spanning air gaps provided between the upper reaches of a roof deck and below a centrally located ridge beam. A plurality of ventilation apertures are provided in each of the sub-flashing portions. A top cap flashing is provided for attachment above the ridge beam. Included in the top cap flashing are a plurality of ventilation apertures defined by edge wall portions. A tile roof is provided, of the flat, low profile undulating, or of the S-tile (undulating) type. Tiles are provided in rows up to the edge of the sub-flashing. The gap between the top of the tiles and the bottom of the top cap flashing is preferably provided with a weathertight seal. Ridge cap tiles are provided in conventional stacked fashion running along above the top cap flashing.

Abstract: A plastic window assembly is adapted to be mounted in an opening defined by a structure. The plastic window assembly is oval-shaped with a decorative plastic window muntin. A plastic frame supports parallel window panes. The window muntin is disposed between the parallel window panes. Flat surfaces of the window muntin have a first edge and a second edge and include a ridge disposed along each of the edges. Marring of the window panes is prevented because the ridge provides for line contact between the window muntin and the window panes. The window muntin may also be integrally molded to a plastic pane disposed between the parallel panes of glass. The plastic pane includes a surface texture that simulates frosted glass. The plastic window assembly includes a plurality of liner panels that extend through the opening from an interior of the structure. The window assembly includes a flange having aperture throughwhich fasteners are inserted to secure the window assembly to the structure.

Abstract: A concrete floor system used in a building structure and a method of making floor components used with the floor system. The concrete floor system, if installed on grade, provides for expansion and contraction due to expansive soils and eliminates cracks, which heretofore occurred in poured concrete slab floors. The concrete floor system includes a plurality of parallel concrete beams. The beams can be made up of hollow concrete blocks for reduced weight and receiving a tension cable therethrough. Also, the beams can be either solid pre-cast beams, solid pre-cast, pre-tension beams or solid pre-cast, post-tension beams. Opposite ends of the cable are held on end plates inside recessed ends of each hollow beam. The ends of the beams are adapted for mounting next to the inside of the sides of a building foundation wall. The beams can be in a range of 5 to 20 feet and greater in length depending on the dimensions of the concrete floor.

Abstract: The invention is intended to reduce heat accumulation in the heat insulator provided around the periphery of the living room of a house structure, thereby achieving simplification of a construction work, energy-saving, and rationalization in maintaining the living environment, and by covering the external face of the heat insulators (2) disposed around the periphery of partition sheet members surrounding the living room, such as the roof, ceiling, wall, and so forth, with the heat shielding members (1) provided with the heat reflection foil, so that radiant heat which will otherwise heat up the heat insulators (2) can be blocked, and heat accumulation in the heat insulators (2) can be reduced.

Abstract: A bracket for use with insulated forms for concrete walls for attaching header or rim joists to the concrete walls. The bracket has an attachment plate for overlying the exterior of the insulated form to provide for a means of attaching the header or rim joist to the bracket. The bracket is provided with an anchoring plate extending from the attaching plate for insertion into the interior of the insulated form. A method of attaching a header or rim joist to a concrete wall formed using insulated forms is also provided. The method involves cutting a vertical slot in the insulated form and insterting a bracket into the slot. The bracket has an attachment plate for overlying the exterior surface of the insulated form and an anchoring plate extending from the attachment plate through the slot into the interior of the insulated form. Concrete is poured into the form and allowed to set, after which the header or rim joist is attached to the brackets.

Abstract: A display framework connection system comprising a plurality of frame members, preferably tubular, a plurality of end flanges, and a hub system. The hub system can comprise a hub plate assembly and/or a hub casting assembly. In addition, at least one clamp assembly, preferably cylindrical, can be included for circumferential attachment to the outer surface of the frame members to provide for selective removable fastening of various attachments and accessories at positions along the length of the frame members. The hub plate assembly and the hug casting assembly can be connected individually to the frame members, or in combination, to enable selective angular configuration of the frame members to construct a frame construction, such as those commonly utilized in display frame systems.

Abstract: An apparatus and method for opening sealed containers includes, in a container with a removable seal, container packaging, with a removal end and a closed end, conformed to receive and removably retain the container. The seal has a front end and a rear end. A connector connects the seal and the container packaging. In another aspect of the invention, a connector extension is attached to the connector and to the seal.

Abstract: Methods for filling and sealing containers having one or more flexible sides. Non-standard containers for holding fluid are releasably supported during the filling and sealing process. Both the interior and exterior of the filled container are subjected to an environment of reduced pressure to minimize the headspace and sealed.

Abstract: A screw capper 1 includes a capping head 6 which grips a cap 5, a servo motor 7 which rotates the capping head, a voltmeter 10 which measures the torque of the capping head, an encoder 11 which detects the rotational angle of the capping head, and a control device 8 which controls the servo motor. In the screw capper, whether rotational fastening is acceptable is to be determined during the rotational fastening, the measured value of the encoder is measured from a predetermined measurement starting point until a rotational fastening completion point, and if the measured rotational angle is in the range of an acceptable decision angle which is set in advance, it is determined that the rotational fastening has been acceptably performed, whereas if the measured rotational angle is not in the range of the acceptable decision angle, it is determined that the rotational fastening is unacceptable.

Abstract: An apparatus for forming packages of pre-cooked meals. The package comprises a tray enclosed at least partially by a card sleeve having top and bottom faces and two opposing side walls. The forming apparatus includes a series of forming tools mounted for movement at spaced intervals and each forming tool is provided for the reception of a sleeve in a blank flattened form. As the sleeve is introduced into the forming tool the sleeve is moved to the erected condition, the tray is inserted in the erected sleeve and the formed package removed from the forming tool.

Abstract: An agricultural bagger apparatus and method for compacting feed into a horizontally deployed bag including a compression mechanism and an input hopper that receives agricultural feed. The hopper has a sloping wall and a lower end exit chute located to transfer the feed into the primary compression mechanism (e.g., a rotating toothed cylinder). The tapered hopper causes the feed to bridge, stopping the feed from falling through the chute. A new distribution mechanism in the hopper sweeps the feed adjacent to the sloping wall to prevent feed bridging. By preventing the feed from clogging, there is less reason to risk one's safety by foolishly inserting their limb into the hopper. Some embodiments also compact feed in the upper portion of the tunnel, for example, by reciprocating a hinged piston above the primary compression mechanism. This increases the compaction on the top portion of the tunnel without unduly juicing the feed.

Abstract: A vertical bagging apparatus [101] comprises a bag station [105] having multiple stations [403A, 403B, 403C, 403D] for holding a variety of wicket-supported bags. A tooling assembly [107] accepts product for a product line and dispenses the product into an opened bag from the bag station. A bag transfer assembly [109] lowers the filled bag to a bag seal assembly [111] located vertically below the tooling assembly. The apparatus allows high speeds and quick-change of bags and bagged product.

Abstract: Device for sleeve-label labeling machines, with proposal that means are provided that render the label tube taut and/or spread the label tube during the cutting step.

Abstract: A frame of a mower supports wheel assemblies, a propulsion unit, and a mowing deck. Each wheel assembly is associated with a corresponding wheel, a corresponding electrical steering motor, and a corresponding electrical drive motor. A controller controls a direction of orientation of the corresponding wheel via the corresponding electrical steering motor. Further, the controller controls the application of electrical energy to the corresponding drive motor consistent with maneuverable movement of the mower. The propulsion unit is capable of rotating at least one cutting blade. A mowing deck houses the at least one cutting blade. The mowing deck has indentations to provide a spatial zone for the plurality of wheel assemblies.

Abstract: A method for operating a mower comprises defining a reference axis of rotation at a desired point along a path segment of the mower. A controller orients wheels of the mower generally tangentially to a circular region about the reference axis. A drive motor applies rotational mechanical energy to one or more of the wheels to rotate the mower by a desired angular amount about the reference axis.

Abstract: A mower has a pair of cutter heads which are pivotally supported by respective cantilever beams. The cantilever beams are pivotally coupled with a hitch assembly, which in turn is coupled with a traction unit via two lower lift arms and a floatable top link. The floatable top link allows the hitch assembly to float relative to the traction unit during transport. A hydraulic cylinder interconnected between the cantilever beams pivots the beams between a transport position and a working position. Stops on the hitch assembly limit pivotal movement of the beams relative to the hitch assembly.

Abstract: A grass striping apparatus for use with a lawn vehicle, e.g., a lawn mower. The striping apparatus may include a frame assembly operatively coupled to the vehicle, e.g., to a cutting deck of the vehicle, and a wiper member extending along a rear side of the cutting deck. The wiper member may include an upper edge fixed to the frame assembly, and an unsupported lower edge adjacent a grass surface. The wiper member may be made from a flexible material. The apparatus may also include an adjustment mechanism that permits height adjustment of the wiper member.

Abstract: A header is equipped with a plurality of mowing and take-in devices for cutting and conveying plants. Associated with each of mowing and take-in device is a conveyor for receiving and conveying plant parts, especially corn ears, possibly separated from the plants, and return devices for returning the plant parts into the plant stream conveyed in the header. Each conveyor includes a chute mounted at an edge of the associated mowing and take-in device for receiving plant parts separated from harvested plants. The return device has a section extending into the chute for deflecting the plant parts back into the plant stream conveyed in the header.

Abstract: A mower deck includes a cutting chamber, at least one blade mounted cutting chamber and at least one deflector mounted in the cutting chamber. The at least one deflector is semi-permeable to clippings circulating in the cutting chamber.

Abstract: The application relates to a device for air spinning, i.e., for the manufacture of a spun yarn from a sliver. The device contains in particular a fiber guide element, a fiber conveying channel, and an eddy chamber housing attached to the fiber guide element. The eddy chamber housing contains in its turn a spindle with a yarn guide channel arranged at a distance interval from the fiber guide element. In addition, the eddy chamber housing contains a fluid device with at least one jet nozzle for the production of an eddy current about an inlet aperture mouth of the yarn guide channel. The fiber conveying channel exhibits a tunnel cladding, which is dimensioned in such a way that at the end of the fiber conveying channel a step to the eddy chamber housing is formed.

Abstract: A chain lock for high-strength steel chains has two lock parts that are the same and can be joined together in a rotation-symmetry arrangement with one another, in the longitudinal direction. Each lock part has a longitudinal stay having arc segments that follow it at both ends. There are two coupling elements that are configured complementary to one another and are assigned to the two arc segments of each lock part. One of the elements is configured as a locking stay that follows the longitudinal extension of the lock part, and the other element is configured as a stay accommodation. The locking stay of the one lock part engages in the stay accommodation of the other lock part and rests against the complementary coupling surface of the stay accommodation with its coupling surface formed by the face end in the joining direction. The coupling surfaces comprise a coupling surface segment having a defined width, which has no curvature or only an insignificant curvature pointing in the joining direction.

Abstract: An exhaust gas purifying system for an internal combustion engine of an automotive vehicle. The exhaust gas purifying system includes an exhaust gas purifying catalyst disposed in an exhaust gas passage of the engine to remove an exhaust gas component. A concentration sensor is disposed in the exhaust gas passage downstream of the exhaust gas purifying catalyst to detect a concentration of the exhaust gas component. Additionally, a control unit is provided programmed to carry out (a) detecting an activity transition time at which the exhaust gas purifying catalyst changes from an inactive state to an active state, in accordance with the concentration of the exhaust gas component detected by the concentration sensor, and (b) judging a deterioration of the exhaust gas purifying catalyst at the activity transition time.

Abstract: An engine control device is configured to perform optimum combustion control according to environmental conditions when warming up of a catalyst for emission purification is required. The engine control device performs stratified combustion by the compression stroke injection at the time of startup, when warming up of the catalyst is required. However, under conditions of low air density, stratified combustion by compression stroke injection is prevented, and either homogenous combustion by intake stroke injection is performed, or double injection combustion by intake stroke injection and compression stroke injection is performed. Thus, the engine control device maintains starting properties and prevents adverse effects on engine operability.

Abstract: In an electrical multi-purpose valve for supplying secondary air into an exhaust system of an internal combustion engine, in which a power-actuated closing member controls a valve orifice in a passage between an inlet from an air supply line and an outlet to the exhaust system, a non-return valve is arranged downstream of the closing body in the direction of the flow of the air through the valve between the non-return valve and the valve outlet, and baffle devices are provided which deflect exhaust gas entering the valve from the outlet at least once by an angle of about 90°.

Abstract: A system and method for electronically controlling the displacement of hydraulic pumps, IHTs or HSTs. The IHT and HST includes a hydraulic transmission mounted within the casing that includes a rotatable hydraulic pump in fluid communication with a rotatable hydraulic motor and a moveable swash plate cooperable with the rotatable hydraulic pump for controlling the speed and direction of rotation of the rotatable hydraulic motor. The rotation of the hydraulic motor is used to drive an axle shaft. For controlling the positioning of the swash plate, the transaxle further includes a rotatable trunnion arm coupled to the moveable swash plate. The rotatable trunnion arm extends from the casing and is coupled to a control arm.

Abstract: A master cylinder with increased safety having a piston produced by molding a plastic or aluminum alloy. The piston slides in a bore blocked off by an end wall. A valve for the master cylinder bears at rest against a pin that is fixedly mounted in the body of the master cylinder passes through the piston via a longitudinal slot. The dimensions of the master cylinder are determined such that the piston bears against the pin before coming into contact with the end wall of the master cylinder body.