Abstract: An arrangement (1) for guiding individual reinforcement filaments (2) onto a carrier (3) has a positioning disc (4) with a plurality of filament guides (9) arranged distributed on a circular ring of the positioning disc (4). The carrier is moveable in the direction of the carrier axis (X). The arrangement also includes a rotationally symmetrical deflecting element (5). The positioning disc (4) and the deflecting element (5) each concentrically surround the carrier (3). The deflecting element (5) is mounted within the positioning disc (4) and aligned axially to the positioning disc (4). The inlet-end peripherally extending inner edge (6) of the deflecting element (5) faces toward the carrier (3) and is curved. The filament guides (9) open directly at the curved inner edge (6).

Abstract: A corrugator glue machine is provided having a web tension nulling mechanism that is effective to cancel out web tension-effect forces exerted on machine members, such as rollers, so these forces to not substantially interfere with the application of glue to the exposed flute crests of a single-faced corrugated web in the glue machine.

Abstract: A water-proof film laminating machine has a laminating machine body, a top roller, a bottom roller, multiple connecting devices, a cylinder, a first holder, a second holder and a cooling device. The holders are connected to the connecting devices and driven by the cylinder. The holders provide heat to melt a film attaching on a texture and the holders can be adjusted to focus on the film precisely. The cooling device cools down a high temperature from the melting film. When the water-proof film laminating machine is in use, a texture is put between the rollers and the film is attached on texture by melting the film. By adjusting the holders, the film will attach to the texture precisely and be cooled down quickly.

Abstract: A tire working tool is presented which comprises a lever arm including a first working end adapted to work a clevis and a second working end adapted to work a second tire bead. The first working end preferably extends generally axially from the lever arm and includes a plurality of indentations catch points for working the clevis. The clevis comprises two freely moving wing members that protrude at a predetermined distance with respect to the sides of the clevis and are adapted to retain a tire bead, a tire bead working member for sliding the tire bead onto the clevis, a wheel fulcrum member that provides an additional leverage point as the tire bead is worked over the wheel rim flange, and an aperture to receive the first working end. The second working end includes a notch member and removable insert for use in working tire rims.

Abstract: The present invention relates to a blind of a roll type comprising a blind sheet having alternate transparent and opaque parts and partly overlapped by folding, to easily and efficiently adjust room illumination. The blind comprises a upper-end support bar; a pair of brackets provided at both ends of the upper-end support bar, standing opposite to each other; a winding rod of which both ends are rotatably fitted into the respective brackets; an adjusting cord provided between one bracket and the winding rod to rotate the winding rod through a sprocket member; a blind sheet comprising alternate transparent and opaque parts and folded to have one end secured to the winding rod and the other end secured to the upper-end support bar; and a weight body provided at a lower end of the blind sheet to stretch the blind sheet tight.

Abstract: The molding and transporting apparatus comprises a molding section for vertically blowing sand from above between a front die and a rear die that have vertically formed pattern faces, and thereafter, driving the front and rear dies and compacting the sand to produce a mold M, and for extruding the mold horizontally, a dividing mechanism for, before the sand is blown, vertically dividing the mold into front and rear portions, as needed, at the center of a molding space, a pouring port formation mechanism for forming a pouring port in the mold; and a form converter for selectively rendering an active operation for changing the form of the mold that is extruded from the molding section from the vertically split form to the horizontally split form, and a non-active operation for transporting the extruded mold to a pouring line, without changing the form of the mold.

Abstract: A method of producing aluminum castings which includes the steps of casting a molten alloy, contacting the surface of the molten alloy with a humidified atmosphere and solidifying the alloy. The method is particularly suited for aluminum-magnesium alloys such as AA 5XXX and 7XXX series alloys. In addition to reducing the thickness of the surface oxide layer formed during casting, the method also provides improved surface quality of cast products and reduces subsequent remedial re-work or scalping. An improved aluminum-magnesium cast alloy product is also disclosed.

Abstract: A countercurrent heat exchanger includes a pair of heat exchanger cores (1, 2) with multiple tubes (11, 21) and fins (12, 22) which are arranged alternatively and next to each other in its depth direction. One end sides of the tubes (11, 21) of the inflow-side heat exchanger core (1) and the outflow-side heat exchanger core (2) is connected with a U-turn intermediate tank (3), and the other end sides are connected with the inflow-side tank (4) and the outflow-side tank (5) which are separated from each other. The inflow-side tank (4), outflow-side tank (5) and intermediate tank (3) are attached to a vehicle body side so that the heat exchanger cores (1) and (2) can expand and contract with respect to the intermediate tank (3).

Abstract: In order to provide a heat exchanger with casing having a multiplicity of tubes through the interiors of which a high-temperature gas for heating flows, wherein the thermal stress is smoothly accommodated and wherein a fluid to be heated or a heating fluid flows uniformly through the outsides of the tubes, a multiplicity of flat tubes are joined at their opposed ends to a pair of discoidal tube plates, the outer periphery of the flat tubes being enclosed by an inner cylinder having a rectangular cross-section except the opposed end portions of the flat tubes, with a pair of baffle plates being disposed at the opposed ends of the inner cylinder. The pair of baffle plates are covered with an circular outer cylinder having a corrugated portion that is thermally expandable, with an inlet and an outlet for the fluid to be heated or the heating fluid positioned between the pair of baffle plates and the tube plates.

Abstract: The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) on their inner surface. These irregularities (3) are located within a zone (6) extending as far as a point located at a distance from the inlet (7) of the tube of maximum 400 times the diameter of the tube.

Abstract: The invention provides a heat exchanger having a plurality of plates stacked in alternating mirrored relation with one another. Each of the plurality of plates has a plate length extending along a plate longitudinal axis between first and second ends. Each of the plurality of plates also has a plate width extending transverse to the plate longitudinal axis. The plurality of plates cooperate to define a fluid receiving cavity extending along a receiving axis substantially perpendicular to the plate longitudinal axis. The plurality of plates also cooperate to define a fluid exiting cavity extending along an exiting axis substantially perpendicular to the plate longitudinal axis and spaced from the receiving axis. A plurality of plate cavities are defined between alternating pairs of adjacent plates and extend along the plate length. The plurality of plate cavities fluidly communicate with both of the receiving and exiting cavities.

Abstract: A heat exchanger comprises: flat tubes laminated on each other, an external fluid flowing in a space formed between the flat tubes arranged adjacent to each other; and fins interposed between the flat tubes, the fins being formed into a protruding and recessing shape having a flat plate portion joined to an outer wall face of the tube when viewed in the flow direction of the external fluid and having a vertical plate portion crossing the flat plate portion, wherein heat is exchanged between the external fluid and the internal fluid flowing in the tubes, the flat plate portion including protruding portions arranged so the protruding portions is inclined in the flow direction of the external fluid, protrusions of the protruding portions being increased toward the downstream side of the external fluid, the vertical plate portion being formed so it meanders in the flow direction of the external fluid.

Abstract: A tube support device for a plurality of elongated members is disclosed. The support device includes an elongated longitudinally extending strip having a pair of opposing faces. The strip includes a plurality of engaging members extending from the pair of opposing faces. The support device is sized such that the support device is located between adjacent rows of elongated members. The plurality of engaging members arranged such that a portion of the plurality of engaging members extend from one face of the opposing faces and are arranged to contact the elongated members positioned adjacent one face and another portion of the plurality of engaging members extend from another face of the opposing faces and are arranged to contact the elongated members positioned adjacent the other face. The plurality of engaging members are located adjacent one end of the strip and extend along only a portion of the length of the strip. The remaining portion of the strip contains no engaging members.

Abstract: A heat exchanger of a ventilating system, including heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, and a plurality of embossing protrusions which are formed on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path, can improve heat transfer performance by controlling development of a boundary layer by differentiating structure of the air flow of an air path through which indoor air passes and an air path through which outdoor air passes.

Abstract: Grooved metal tubes, with a groove-bottom thickness Tf and outside diameter De, internally grooved with N helical ribs having an apex angle ?, height H, base width LN, and helix angle ?, two consecutive ribs being separated by a groove, generally flat-bottomed, having a width LR, with a pitch P equal to LR+LN, are characterized in that: a) the thickness Tf of the tube is such that Tf/De is equal to 0.023±0.005, Tf and De being expressed in mm, with De ranging between 4 and 14.5 mm; b) the ribs have a height H such that H/De is equal to 0.028±0.005, H and De being expressed in mm; c) the number N of ribs is such that N/De is equal to 2.1±0.4, and the corresponding pitch P is equal to p·Di/N, with Di equal to De?2·Tf, and De being expressed in mm; d) the base widths LN and LR are such that LN/LR is between 0.20 and 0.80; e) the apex angle ? ranges from 10° to 50°; and f) the helix angle ? ranges from 20° to 50°.

Abstract: A method for manufacturing a heat sink has steps of providing multiple fins and a heat pipe, assembling the fins, mounting a thermal-conductive medium, attaching the heat pipe, heating the thermal-conductive medium, rotating the fins and cooling the thermal-conductive medium. Because the thermal-conductive medium is inserted in the cavities in the fins before the heat pipe extends through the fins, inserting the thermal-conductive medium is easy and convenient.

Abstract: The spider, arranged for support on a drilling rig, is fitted with a plurality of slips peripherally distributed about a slip bowl. Each slip has a plurality of pipe gripping dies distributed vertically and resting on individual abutment surfaces on the slip. Each slip has a generally vertical slide way to receive mating surfaces on the die for radial constraint of the dies.

Abstract: This invention relates to subterranean treatment operations. More particularly, this invention provides methods that may be useful in providing void-free barriers between a subterranean formation and a portion of a well bore. A nonlimiting example of a method is a method of degrading a filter cake in a subterranean formation. Another nonlimiting example of a method is a method of producing hydrocarbons from a subterranean formation.

Abstract: Methods are provided including a method of treating a portion of a subterranean formation comprising: providing a treatment fluid comprising a plurality of self-degrading fibers, the self-degrading fibers comprising an outer shell and a core liquid; placing the treatment fluid into a subterranean formation; and treating a portion of the subterranean formation. Additional methods are also provided.

Abstract: Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component comprises a hardenable resin and wherein the hardening agent component comprises a hardening agent, a silane coupling agent, and a surfactant; introducing the fracturing fluid into at least one fracture within the subterranean formation; depositing at least a portion of the proppant particulates in the fracture; allowing at least a portion of the proppant particulates in the fracture to form a proppant pack; and, allowing at least a portion of the hardenable resin composition to migrate from the proppant particulates to a fracture face.

Abstract: A cemented open hole selective fracing system is shown. In the producing zone, an open hole is drilled therein and a production tubing is cemented in place. At preselected locations along the production tubing, the production tubing will have sliding valves located there along. The sliding valves may be selectively opened by a shifting tool, and the cement around the sliding valve dissolved. Thereafter, the formation may be fraced immediately adjacent the opened sliding valve. By selectively opening different combinations of sliding valves, fracing can occur in stages with more fracing pressure and more fracing fluid being delivered deeper into the formation. Just as the sliding valves can be selectively opened with a switching tool, the sliding valves can also be selectively closed to protect the production of the well.

Abstract: The problem of fiber or particle settling in well cement slurries is addressed by providing a fluid containing two fiber components of differing properties. Such a well treatment fluid, comprising a base fluid; a first fiber component that it substantially more dense than the base fluid; and a second fiber component that has a density close to that of the base fluid and is relatively flexible.

Abstract: A method of servicing a wellbore, comprising preparing a sealant composition comprising a crosslinkable material, a crosslinking agent, a fluid loss control additive, and water, placing the sealant composition in a permeable zone in the wellbore, and allowing the sealant composition to set. A method of servicing a wellbore, comprising preparing a sealant composition by combining a crosslinkable material, a crosslinking agent, a fluid loss control additive, water, and a cement, wherein an amount of the cement is reduced to an effective amount to increase a gel time of the sealant composition to greater than or equal to about 4 hours when the sealant composition is exposed to ambient temperatures in the wellbore, placing the sealant composition in a permeable zone in the wellbore, and allowing the sealant composition to gel.

Abstract: A method and system of forming a lateral wellbore in a time and trip saving manner using a mill/drill to locate and place a casing window. In one aspect of the invention, a lateral wellbore is drilled with liner which is subsequently left in the lateral wellbore to line the sides thereof. In another aspect, the mill/drill is rotated with a rotary steerable system and in another aspect, the mill/drill is rotated with a downhole motor or a drill stem.

Abstract: A wireline jar tool delivers instrument packages into wellbores and retrieves tools when they get stuck. The jar has several stored spring chambers connected to accelerate an upper spring chamber away from a stuck lower carrier chamber that supports instrument packages. Wireline tension actuates the jarring action and then lowers a sinker bar for reset as many times as required to incrementally jar the un-stick fish uphole. The wire line connects to a conductor that extends inside the tool through a main operating shaft, release coupling, hammer and anvil, lost motion coupling, into the lower chamber where the end connects to the instruments for communication to the surface. A small wireline tension provides unexpected large impact forces.

Abstract: The present invention provides for a valve in a tubing string that allows the tubing string to fill with well fluids as the string is assembled and lowered into a well bore, but can be used to check pressure integrity of the tubing string during various stages of the assembly.

Abstract: A fluid system component is provided that is implemented as a section of metal pipe having a predetermined wall thickness and including a sacrificial element intended to preferentially fail upon the occurrence of certain predefined conditions. The sacrificial element takes the form of a window of predetermined geometry that covers an opening defined in the wall of the pipe. The window is configured to have a thickness substantially less than the wall thickness of the pipe, but nonetheless sufficiently great that the window remains materially unaffected by normal system operating conditions to which it is exposed. When the window is exposed to a pressure differential of predetermined magnitude, typically much greater than normal system operating pressures, the relatively thin window ruptures and permits the pressurized material, either inside or outside the pipe, to flow through the rupture.

Abstract: The method for rapid installation of a smaller diameter pressure control device usable on an annular BOP or any type of BOP. The step are first installing a flange with a threaded profile upon an annular BOP. Next, install a bell nipple on the flange, then install a first test plug in the base of the BOP or the base of the stack of BOPs. Then install a second test plug into the threaded profile of flange. Perform a pressure test on the flange and all sealing aspects of the annular BOP; depressurizing the flange and removing the test plug. Install a thread protector between flange and the bore of the annular BOP. Next initiate drilling operations; and upon indication of the need for wireline operations, or adapting the existing BOP to smaller working diameter pressure control device, remove the thread protector and install a high pressure assembly.

Abstract: A lockdown flange for use with an independent screwed wellhead includes an annular body having a center passageway with an internal diameter at least as large as a passageway through the wellhead. The lock down flange may be used to construct a multi-lock adapter for connecting a high pressure valve, a blowout preventer or a well stimulation tool to the independent screwed wellhead. The lockdown flange ensures that stress on connection points to the screwed independent wellhead due to elevated fluid pressures used for well stimulation procedures does not exceed engineered specifications.

Abstract: A cultivator for aerating a ground surface. The cultivator has a support frame moveable relative to the ground surface and a follower first pivotally connected to the support frame by a first pair of spaced link arms. The link arms have two pairs of equidistantly spaced pivot points for linear movement of the follower in a first direction away from the support frame. A tool support member is pivotally connected to the follower by a second pair of spaced link arms. The second link arms have two pairs of equidistantly spaced pivot points for linear movement of a cultivating tool in a second direction substantially perpendicular to the first direction. A driver effects cyclic movement of the tool support member in the second direction and movement of the follower in the first direction.

Abstract: The rock drilling rig comprises a first control unit (8) arranged on a carrier (1) and a second control unit (9) arranged to a rock drilling apparatus (4). The first control unit (8) and the second control unit (9) communicate with each other by means of a first data communications link (10). The rock drilling apparatus (4) has one or more sensors (11, 12, 15), the measuring results of which are processed in the second control unit (9) and only then transmitted to the first control unit (8) that controls actuators regulating the operation of the rock drilling apparatus (4). Correspondingly, the rock breaking machine, such as a breaking hammer, comprises one or more sensors (11, 12, 15) and a control unit (9).

Abstract: A high-temperature lubricant is shown and described. The lubricant includes a base stock and about 1 to about 20 weight percent zirconium 2-ethylhexanoate. The lubricant may also include about 1 to about 9 weight percent bismuth 2-ethylhexanoate.

Abstract: According to one embodiment of the invention, a rotary steerable tool includes a drive shaft configured to be coupled to a drill string at an upper end thereof and configured to be coupled to a drilling tool at a lower end thereof. A middle portion of the drive shaft is disposed axially between the upper and lower ends and has a smaller diameter than each of the upper and lower ends. The drive shaft further includes a housing rotatably coupled externally to the drive shaft and at least one housing module coupled to a respective opening in the housing at an axial location corresponding to the middle portion of the drive shaft.

Abstract: A bit retainer system comprising a casing, a driver sub adapted to be disposed around a shank of a bit, and a bit retainer. The driver sub comprises a threaded connector, a threaded pin end configured to engage with the hammer case, and a stop. The bit retainer comprises a load carrying threaded connector configured to engage with the threaded connector of the driver sub, and a catch thread configured to retain the head of a bit to the system.

Abstract: A seal assembly for an earth boring bit uses a magnet to provide a desired contact force. The seal is located between a rotating cone and a stationary bearing pin of the drill bit. The seal has a non rotating metal face that is in sliding engagement with a seal face in the cone that rotates with the cone. The non rotating seal face is provided by a carrier ring that encircles the bearing pin. A magnet is mounted to the carrier ring to provide an attraction force maintaining the carrier ring in contact with the rotating seal face in the cone. An elastomeric seal ring seals between the carrier ring and the bearing pin to prevent rotation of the carrier ring.

Abstract: A down hole cutting tool includes a cutting element support structure. The cutting element support structure has at least one cavity formed therein. A cutting element is disposed in the cavity. Braze alloy is also disposed in the cavity between the cutting element and the cutting element support structure. The braze alloy comprises between about 0.5% and about 10% by weight of at least one selected from the group of gallium (Ga), indium (In), thallium (Tl). Methods for building a down hole tool using the braze alloy are also disclosed.

Abstract: An electric vehicle has a control unit having a decelerating control function of decelerating an electric motor disposed on a side of a vehicle body corresponding to a turning direction of the electric vehicle, and an accelerating control function of outputting an accelerating control signal for performing acceleration control to accelerate the electric motor when operation of the electric vehicle is switched from a first traveling mode to a second traveling mode. When the electric motor has a speed not exceeding a predetermined reference speed, the accelerating control function performs the acceleration control such that a level of the accelerating control signal is increased abruptly for a temporary time from the switching of the operation of the electric vehicle from the first traveling mode to the second traveling mode.

Abstract: The invention relates to an undercarriage, preferably for a crawler-mounted crane, comprising a crawler track which runs on a crawler carrier and which consists of base plates articulatedly connected to one another, with cams being formed on the base plates which laterally center the crawler track under the rollers, wherein two metal guide sheets which extend substantially over the length of the crawler carrier and which are engaged behind by holding plates arranged at the base plates of the crawler tracks are laterally arranged at the lower carriage of the crawler carrier.

Abstract: To efficiently arrange a plurality of batteries in a large-sized electrically-driven vehicle. An electrically-driven vehicle includes a vehicle body frame including a head pipe for supporting a steering shaft, upper frames which project in the vehicle-body lateral direction therefrom and extend in the rearward direction, lower frames, and rear frames which are connected with the lower frames. The vehicle body frame is configured in an approximately U-shape as a whole in a side view. In a space which is surrounded by the vehicle body frame, a plurality of batteries are arranged like stairs in parallel in the vehicle-body longitudinal direction along the approximately U-shape of the vehicle body frame.

Abstract: A method for controlling a hybrid powertrain system includes the steps of determining a first power state of the hybrid powertrain system, limiting electrical power generated by a generator to the minimum of the rated power limit of the generator and the first power state, when the first power state is greater than zero, and limiting the electrical power generated by the generator to zero, and limiting the power limit of an electric machine during generating to a first operating condition of the hybrid powertrain system, when the first power state is less than or equal to zero, to provide over-charge protection to the battery. The method further includes steps that provide over-discharge protection to the battery.

Abstract: A motor-driven vehicle includes a first vehicle body with a sleeve tube, a second vehicle body with an insert rod disposed telescopically within the sleeve tube, and a locking device including a pull rod, a retaining block and a resilient member. The pull rod is movable on the first vehicle body between a locking position and a release position. When the pull rod is disposed at the locking position, the retaining block extends through a hole in the sleeve tube and engages a selected one of holes in the insert tube of the second vehicle body. When the pull rod is disposed at the release position, the retaining block is removed from the holes in the insert rod. The resilient member biases the pull rod to the locking position.

Abstract: A frame structure for a motorcycle includes a front fork which journals a front wheel and that is capable of being steered and supported by a head pipe. Front end portions of a pair of right and left pipe members are connected contiguously to the head pipe and extend downwardly and rearwardly from the head pipe. The pair of right and left pipe members each have a substantially prismatic cross sectional shape and are each bent at their longitudinally intermediate portions so as to be outwardly convex with respect to the sides of the motorcycle frame. An engine is disposed between lower portions of both pipe members in an engine mounting space. The present invention narrows the distance between the upper portions of the right and left pipe members and effectively increases the space between the lower portions of the pair of right and left pipe members.

Abstract: A second pedal bracket 25 that supports a brake pedal 11 by a pedal support shaft 27 is swingably connected, via a bracket support shaft 28, to an upper part of a first pedal bracket 20 fixed to a dashpanel 3. Both the first and second pedal brackets 20 and 25 and a restricting/derestricting member 32 are connected to each other by a bolt 37 to restrict swinging of the second pedal bracket 25. Upon collision of an automobile, a rear end wall 39 of the restricting/derestricting member 32 abuts against an instrument member 7, thus moving the member 32 and bolt 37 relatively forward to derestrict the second pedal bracket 25. Then, an arm 40 extended upward from the second pedal bracket 25 abuts against the instrument member 7, thus rotating the second pedal bracket 25 to displace the pedal support shaft 27 backward.

Abstract: An exhaust gas distribution device for the engine of a vehicle, wherein said device incorporates means to control the evacuation of the gases towards a classical exhaust system or else towards a specific exhaust system, said specific exhaust system incorporating means to dilute and reduce the visible, sound and infrared signatures of said vehicle.

Abstract: A squeeze film damper reduces acoustic wave transmission by the damping and spring forces produced by squeezing a very thin layer of air trapped between two vibrating plates. The damping effect is most pronounced when the gap between vibrating plates is very small, e.g., of the order of micrometers, thus, the squeeze film dampers have two, very closely-spaced opposing plates, the top of which vibrates out-of-phase with respect to the lower plate, when the lower plate is attached to a vibrating surface. The relative motion of plates squeezes out the thin film of air trapped within the plates and adds substantial amount of passive damping over a wideband of frequency to the base vibrating structure thereby reducing vibrations and noise radiated by the structure. The out-of-phase displacement of the top plate, with respect to the bottom plate, tends to cancel acoustic energy imparted to the lower plate by a vibrating surface. Squeeze film dampers can be applied in arrays to a vibrating surface.

Abstract: An add-on extension ladder is removably mountable to a portion of a conventional ladder to extend the reach of the conventional ladder without any structural modification to the conventional ladder. The add-on extension has integral elements for engaging rungs on the upper portion of the conventional ladder to easily mount and remove the extension ladder to and from the conventional ladder.

Abstract: This invention discloses a portable electrical grease gun which relates to electric tool field. The portable electrical grease gun according to the present invention, in which conventional slide block assembly driving structure is replaced by a crank link mechanism. As a result, the structure of the product is compact and simple. The crank link mechanism is constructed at low cost. The friction is low during operation. The operation is stable and reliable. It is easy for bulk production. In addition, the volume of the portable electrical grease gun according to the present invention is small so that it is easy to take and operate conveniently.

Abstract: A padded end cap made of resilient material for cushioning the end of lifting hoist arms of automotive lifts. One embodiment of this solid body cushioning apparatus (10) contains a plurality of vertical and horizontal attachment surfaces to affix the apparatus to the substantially square or rectangular end of a vehicle lifting arm. Another solid body embodiment provides at least one concave attachment surface to affix the cushioning apparatus to the substantially cylindrical, circular or semi-circular end of a vehicle lifting arm.

Abstract: An elevator with an elevator car, guide rails, a counterweight and counterweight guide rails is arranged to minimize shaft space requirements. This elevator has a plurality of diverting pulleys mounted in an upper part of the shaft. A drive motor with a traction sheave is also mounted in the upper part of the shaft. There is at least one diverting pulley on both the elevator car and the counterweight. The car guide rails, the diverting pulleys in the upper part of the shaft and the drive motor and traction sheave are all on the same side of the elevator car. The elevator will take up as little space as possible in a transverse direction of the shaft and can be installed in a confined space.

Abstract: An emergency brake apparatus for an elevator system is installed on an elevator cage or a balance weight of the elevator system and includes a grip member with slant surfaces and a pressing surface sandwiching a guide rail, a pressing member disposed movably between the slant surfaces of the grip member and the guide rail, and an electric solenoid connected to the pressing member and actuated by an electric signal. The electric solenoid positions the pressing member away from the guide rail in a non-braking operation while pushing the pressing member between the slant surfaces and the guide rail in a braking operation.