baber/WOPTO huggingface dataset:
Patent TW-I404104-B (TW)
Title: Beam angle adjustment in ion implanters
Inventor: VANDERBERG BO
IPC: H01J37/06
Filed: 2007-06-05
Granted: 2013-08-01
Abstract: A steering component is included in an ion implantation system to direct or “steer” an ion beam to a scan vertex of a scanning component downstream of the steering component. In this manner, the scan vertex of the scanning component coincides with the focal point of a parallelizing component downstream of the scanning component. This allows the beam to emerge from the parallelizing component at an expected angle so that ions can be implanted in a desired manner into a workpiece located downstream of the parallelizing component.
Patent TW-I392506-B (TW)
Title: Inhalable powders
Inventor: SCHULTZ-FADEMRECHT TORSTEN
IPC: A61K9/14
Filed: 2007-06-28
Granted: 2013-04-11
Abstract: The invention therefore relates to protein-containing powders, wherein the proportion of phenylalanine is at least 30% (w/w), or at least 40% (w/w). It has been shown that phenylalanine-containing powders, particularly after spray drying, are very suitable in terms of their aerodynamic characteristics and protein stabilization for preparing powders or protein compositions with improved aerodynamic properties. The main component is phenylalanine and the optional further component is an excipient which has good water-solubility compared with phenylalanine, preferably a sugar or a polyol.
Patent TW-I412315-B (TW)
Inventor: TAKENAKA TOSHIAKI
IPC: H05K3/46
Filed: 2008-03-13
Granted: 2013-10-11
Abstract: Through hole (3) for product, through holes (7a, 7b) for laminate recognition marks, through holes (8a, 8b) for an X-ray recognition marks are formed on prepreg sheet (1) having mold release films (2a, 2b) attached to the front and back surfaces thereof. By masking through holes (7a, 7b) for laminate recognition mark, conductive paste (4) is filled in through hole (3) for product and through holes (8a, 8b) for X-ray recognition marks. Thereafter, mold release films (2a, 2b) are removed so as to manufacture a circuit board. Since conductive paste (4) is not filled in through holes (7a, 7b) for laminate recognition marks, a recognition mark with high laminating accuracy can be easily obtained, and a high density and high quality circuit formation substrate having improved laminating accuracy can be obtained.
Patent TW-I409196-B (TW)
Title: A device for dealing with erosive fluids
Inventor: CHANG TING CHANG
IPC: B65D85/48
Filed: 2008-04-18
Granted: 2013-09-21
Abstract: A device for dealing with erosive fluids includes a body, a cover and a pair of seals. There is a chamber in the body and a through hole connecting with the chamber is defined on a wall of the body. The cover is utilized to cover the through hole. Both of the seals are fixed on the cover for tightly sealing the through hole. One of the seals is defined as a first seal and is made of organic matters with elasticity, and the other seal is defined as a second seal and made of metals. The second seal is arranged between the chamber and the first seal, so as to prevent the first seal from touching erosive fluids received in the chamber.
Patent TW-I415352-B (TW)
Title: Polymer bushing and cable termination using the same
Inventor: ADACHI KAZUHISA
IPC: H02G15/02
Filed: 2008-06-16
Granted: 2013-11-11
Abstract: The prevention to the large scale of the polymer bushing is performer and the attempt to the high voltage of the operating voltage is performed. A polymer bushing 1 of this invention is provided with a conductor bar 2 which is centrally arranged and has a conductor insertion hole 2a at a lower end part, a rigid insulator 3 which is provided at the outer circumference of the conductor bar 2 and has a receiving port 31a for a cable termination 7, and a polymer covering 4 which is provided at the outer circumference of the insulator 3 and that a number of shades 4a are formed separately along the longer direction at the outer circumference. Besides, a large diameter part 33 is provided at the upper part than the conductor insertion hole 2a in the neighborhood of the lower end part of the insulator 3. And, a cylindrical shielding metal fitting 6 is concentrically embedded together with the conductor bar 2 at the aforementioned large diameter part 33. Further, an electric-field stress-control layer 5 is provided at the interface between the aforementioned large diameter part 33 and the polymer covering 4.
Patent TW-I620800-B (TW)
Inventor: OHATA TATSUHIRO
IPC: G02F1/1335
Filed: 2008-06-19
Granted: 2018-04-11
Abstract: 本發明之課題係提供一種在使用經微粒化之顏料的情形下，可同時達成高對比度與分散穩定性之顏料分散液，並使用該顏料分散液而提供一種顯影性良好的彩色濾光片用著色組成物。本發明提供一種顏料分散液及其用途，該顏料分散液之特徵在於：含有顏料、溶劑及分散劑，該分散劑含有由具有親溶劑性之A嵌段與具有含氮原子的官能基之B嵌段所構成之嵌段共聚物，該分散劑之胺價以有效固形分換算計為80 mgKOH/g以上且150 mgKOH/g以下。
Patent TW-I406218-B (TW)
Title: High-reliability gate driving circuit
Inventor: SHIH CHIH JEN
IPC: G09G3/20
Filed: 2009-01-09
Granted: 2013-08-21
Abstract: A high-reliability gate driving circuit is disclosed for providing a plurality of gate signals to plural gate lines respectively. The gate driving circuit includes a plurality of shift register stages. Each shift register stage includes a pull-up unit, an energy-store unit, a buffer unit, a discharging unit, a first pull-down unit, a second pull-down unit and a control unit. The pull-up unit pulls up a gate signal according to a driving control voltage and a first clock. The buffer unit receives an input signal. The energy-store unit provides the driving control voltage through performing a charging process based on the input signal. The first pull-down unit pulls down the gate signal according to a control signal. The second pull-down unit pulls down the gate signal according to a second clock having a phase opposite to the first clock. The control unit generates the control signal based on the gate signal.
Patent TW-I414601-B (TW)
Inventor: HUANG CHIEH CHEN
IPC: A61K33/28
Filed: 2009-03-02
Granted: 2013-11-11
Abstract: This invention is related to a mercury ion binding protein, the production method thereof and the purposes thereof for removing free radicals, and is particularly related to the purposes of the mercury ion binding protein as additives of cosmetic products, health foods or medical products. In addition, this invention is also related to the purpose of the mercury ion binding protein - containing transgenic plants for removing free radicals, in which the aforementioned transgenic plants have various abilities to resist adverse circumstances and diseases.
Patent TW-I409341-B (TW)
Inventor: TSAI KUO MING
IPC: C22C1/02
Filed: 2009-03-31
Granted: 2013-09-21
Abstract: The invention relates to a computation method for material formula of melting raw material that takes scrap as a molten base material to incorporate other materials. Under the condition of optimizing the cost of composed materials, the formula computation design is performed. After the result of the formula composition is verified without error, the raw material cost is calculated to obtain the melting formula having the lowest cost for a new melting material. In order to adequately utilize the inventory scrap, the invention principally uses scrap and other supplementary materials and uses a computer program to calculate the melting formula having the lowest cost for the new melting material at the shortest time, thereby melting the new melting material with the lowest cost.
Patent TW-I405955-B (TW)
Title: Method for changing sound wave frequency by using the acoustic matching layer
Inventor: SHIEH TZONG LIN JAY
IPC: G01H11/04
Filed: 2009-05-06
Granted: 2013-08-21
Abstract: The method of changing ultrasound wave frequency by using the acoustic matching layer presents a replaceable acoustic matching layer to offer an effective means of filtering the original broadband frequency of an ultrasonic transducer into certain composite discontinuous frequencies. The filtering effect could be improved by connecting the electrodes of the acoustic matching layer when it is made of a poled piezoelectric material. This method may provide novel applications for commercial ultrasonic transducers.
Patent TW-I408231-B (TW)
Title: A method of cellulase production
Inventor: CHOU SHENG HSIN
IPC: C12P19/02
Filed: 2009-10-30
Granted: 2013-09-11
Abstract: The invention is related to a method of cellulase production, which is employed dilute acid-pretreated lignocellulose as inducer with the Trichoderma species. The cellulase produced by this method has a capacity for hydrolyzing the cellulose of acid-pretreated lignocelluloses to glucose with an efficiency of 85% and above, which is showed a 4% higher than that by commercial cellulose.
Patent TW-I404862-B (TW)
IPC: F04B49/00
Filed: 2009-11-26
Granted: 2013-08-11
Abstract: An unloading automatic adjustment system for an air compressor includes: an air compressor for outputting high pressure air under loading and not outputting high pressure air under unloading; a control unit connected to the air compressor and recorded with a pre-specified unloading pressure value and a minimum safe pressure value; a user end connected to an output port of air compressor; in which the control unit adjusts the unloading pressure value of air compressor based on the demand of user end and the system capacity. When the demand of user end is low, the control unit gradually reduces the unloading pressure value based on each loading-unloading cycle. When the demand of user end is high, the control unit gradually increases the unloading pressure value based on each loading-unloading cycle. Thus, the system can reduce the time of unloading for reducing waste use of energy.
Patent TW-I405804-B (TW)
Title: Polymeric complex supporter for controlling gas-releasing substances and manufacturing thereof
Inventor: SUN YUANPANG
IPC: C08J9/28
Filed: 2010-04-19
Granted: 2013-08-21
Abstract: A polymeric complex supporter for controlling oxygen-released compounds (PCS-ORCs) and a method for manufacturing the same is disclosed. PCS possesses a porous surface and internal coralloid-like channel structure that can accommodate ORCs with a high ratio (up to 92 wt %) to polymers. In applications, the PCS-ORCs can be shaped as various types and be coupled with other solids that could be used as delivery tools. As PCS-ORCs is delivered into a water-containing environment, water molecules can diffuse into the internal channels through the surface pores and then react with ORCs. Due to the tunable structure properties of PCS, the produced oxygen can be release out through the surface pores for one to six months long. In comparison with powder-type ORCs, PCS-ORCs can exhibit better application potentials in terms of time-release technology, oxygen delivery and environmental responsibility.
Patent TW-I403459-B (TW)
Title: Process for producing hydrogen with high yield under low temperature
Inventor: HUANG YUH JEEN
IPC: B01J23/80
Filed: 2010-06-15
Granted: 2013-08-01
Abstract: An oxidative steam reforming of methanol (OSRM) process at low temperature includes providing a gas mixture comprising methanol, steam and oxygen and conducting the gas mixture to flow through an AuCu/ZnO-based catalyst for undergoing OSRM process to generate hydrogen, wherein an initiation temperature of OSRM is less than 175° C. The AuCu/ZnO catalyst of the present invention may lower the initiation temperature of the OSRM process and remains to have good catalytic efficiency without undergoing pre-reduction. A steam reforming of methanol (SRM) process is also herein provided.
Patent TW-I406735-B (TW)
Title: An thermal error compensation system for a ball-screw feed drive system
Inventor: CHEN JENQ SHYONG
IPC: F16H25/20
Filed: 2010-08-24
Granted: 2013-09-01
Abstract: An thermal error compensation system for a ball-screw feed drive system includes a feed-drive system, a measurement module and a signal processing unit. The feed-drive system consists of a ball-screw, a driver and a nut. The ball-screw is supported by two bearings mounted on the two ends of the ball-screw. One end of the ball-screw is coupled to the driver. The nut is mounted and movable on the ballscrew shaft. The measurement module has two non-contact displacement sensors located nearly the bearings on both end. The measured signals of the displacement sensors are electrically connected to a signal processing unit in order to calculate the compensation data. The compensation date is then further sent to the control unit to compensate for the thermal error.
Patent GB-2462990-B (GB)
Title: Surfaces for sporting and other activities
Inventor: ARMOND VICTOR JOHN
IPC: A01G1/00
Filed: 2008-06-16
Granted: 2011-12-07
Abstract: A grass surface (1) on a soccer pitch has a top surface (2) under which is an upper layer (3) formed from a growing material having silica sand, elastomeric polyurethane fibres, rigid polypropylene fibres and soil to produce a resilient, reduced-hardness surface with good ball-rebound and traction performance. There is then a lower rootzone (4) of a sand/soil blend, below which is a layer of graded gravel with drainage channels (6).
Patent GB-2483524-B (GB)
Title: A switch arrangement
Inventor: BROOKING PATRICK ROBERT MARIUS
IPC: H02H7/06
Filed: 2011-01-27
Granted: 2012-08-08
Abstract: A switch arrangement 400 is provided for an electric motor or generator 500 having a plurality of coil windings that during operation of the electric motor or generator 500 are electrically coupled to form a star point connection and that are arranged to have different AC voltage phases applied across the respective coil windings from an inverter. The switch arrangement 400 includes a rectifier Da-Df arranged to be coupled to the respective plurality of coil windings, and the rectifier Da-Df provides the rectified AC current to a DC output Idc. A switch QA coupled across the rectifier DC output Idc is operable to electrically isolate the plurality of coil windings from each other to provide protection in the event of a short circuit in the inverter. Unwanted currents and braking torque of the motor 500 are prevented by a single switch QA. A voltage clamping device 430 may be connected in parallel with the switch QA to absorb energy from the coil windings.
Patent GR-11511-B (GR)
Title: Μεθοδος δια την παρασκευην εξαχλωροκυκλοεξανιων.
Filed: 1947-12-08
Abstract: έθοδος κατασκευής εξαχλωροκυκλοεξανίων, διά χλωριώσεως του βενζολίου τη παρουσία φωτός, χαρακτηριζομένη εκ του ότι, η κατεργασία εκτελείται είς θερμοκρασίαν μεταξύ της θερμοκρασίας κρυσταλλώσεως του καθαρού βενζολίου και του σημείου πήξεως του βενζολίου είς το βενζολικόν διάλυμα των εξαχλωροκυκλοεξανίων.
Patent GR-20295-B (GR)
Title: Διαταξις ψυξεως, ιδια δια την προψυξιν οχηματων -ψυγειων η δοχειων.
Filed: 1959-07-06
Abstract: ιάταξις ψύξεως, ιδίως δια πρόψυξιν οχημάτων-ψηγείων ή δοχείων, εις ην ρεύμα ψυχρού αέρος διέρχεται δια τεμαχισμένου εξ' ύδατος πάγου ευρισκομένου ειςδοχείον, όστις ψεκάζεται δια του εξερχομένου ύδατος του τήξεως και ύδατος ψεκαχμού συνεχώς, χαρακτηριζομένη εκ του ότι, η σωλήνωσις (24) κυκλοφορίας του ύδατος τήξεως και ψεκασμού συνδέεται προς δοχείον άλμης (28) μέσω μαγνητικής βαλβίδος (32) ή παρομοίου οργάνου ήτις ελέγχεται μέσω θερμοστάτου (33), ούτινος η ανιχνευτική βαλβίς διατάσσεται εις τον αγωγόν ψυχρού αέρος (11,10) του προς ψύξιν οχήματος (9) ή δοχείου και ελέγχει το ποσόν της προς προσθήκην άλμης εις το ύδωρ ψεκασμού και τήξεως.
Patent GR-32734-B (GR)
Title: Γωνια αναρτησεως και κεφαλη διανομης.
Inventor: HALZWARTH HENRY ALBERT
IPC: A47K5/122
Filed: 1967-02-06
Abstract: ις βραχίων αναρτήσεως και κεφαλή διανομής, όστις περιλαμβάνει ένα βραχίονα προς ανάρτησιν επί ενός στηρίγματος π.χ. ενός τοίχου. Ο ρηθείς βραχίων έχει μιαν αύλακα επί της άνω επιφανείας του, η ρηθείσα αύλαξ είναι γενικώς ανοικτή εις το έν άκρον, μιααναπόσπαστος δε υποδοχή δια το δοχείον εκτείνεταιεκ της κάτω επιφανείας του ρηθέντος βραχίονος καιέχει εν άνοιγμα επ'αυτής συγκοινωνούν με το κάτω μέρος της αύλακος, και εν κινητόν πώμα εφαρμόζει εις την αύλακα, το ρηθέν πώμα έχει μίαν δίοδον επ'αυτού εκτεινομένην από μίαν οπήν ευρισκομένην επί του ενός άκρου του ανωτέρου πώματος εφαπτομένου τουανοικτού άκρου της αύλακος και τρόπον συγκοινωνίας μετά της λεχθείσης διόδου δια την διοχέτευσιν υλικού από το δοχείον μέσω του ανοίγματος του περιλαμβανομένου εις τον βραχίων.
Patent GR-34501-B (GR)
Title: Νεα μεθοδος σεισμολογικης ερευνης εντος του υδατος.
Inventor: CHOLET J
IPC: G01V1/393
Filed: 1967-05-26
Abstract: έθοδος σειρμολογικής ερέυνςη κοιτασμάτων εντός του ύδατος η οποία συνίσταται είς έν πρώτον στάδιον είςτην εκπομπήν εντός μάζης ύδατος, συμφώνως πρός προκαταρτισθέν πρόγραμμα εκπομπη ελαστικών κυμάτων, ταοποία θα υποστούν ανάκλασιν αφ' ενός μέν υπό των στρωμάτων του υπεδάφους του καλυπτομένου υπό της αναφερθείσης μάζης ύδατος, αφ' ετέρου δέ υπό τηςμεσεπιφανείας της οροθετουοης είς το άνω μέρος αυτής την μάζαν του ύδατος κα ιείς έν δεύτερον στάδιον είς την λήψιν εντός του ύδατος των και είς έν δεύτερον στάδιον είς την λήψιν εντός του ύδατος τωνέν λόγω ανακλωμένων κυμάτων και τον μετασχηματισμόν τω νείς ανάλογα ηλεκτρικά σήματα συμφώνως πρός προκαθορισθέν πρόγραμμα λήψεως, ένθα έν τουλάχισιτον των προγραμμάτων τούτων τίθεται είς εφαρμογήν διά της πραγματοοιήσεως ενός τουλάχιστιον έκ των σταδίων εκπομπής κα ιλήψεως είς πολλά σημεία επί επιπέδων ευρισκομέων είς διαφορετικά βάθη,και είς χρονικά διαστήματα μεταξύ δύο διαδοχικών επιπεδων ίσαπρός τον λόγον της αποστάσεως μεταξύτων δύο αυτώνεπιπέδων πρός την ταχύτητα διαδόσεως εντός του ύδατος των εκπεμπομένων ελαστικών κυμάτων, είς τρόπον ώστε να καθίσταται κυνατόν να τίθενται "είς φάσιν" τα ναφερθέτνα ηλεκτρικά κύματα τα οποία παράγονται υπό των κυμάτων των ανακλωμένων υπό των στρωμάτων του υπεδάφους, όπερ συνοδεύεται υπό μιάς διαφορά φάσεως των ηλεκτρικών σημάτων των παραγομένων υπο των κυμάτων των ανακωμένων υπό της αναφερθείσηςμεσεπιφανείας.
Patent GR-34616-B (GR)
Title: Μηχανημα δια την συλλογην ελαιων και αλλων καρπων.
Inventor: SOLER-ESPIAUBA JOSE GODOY
IPC: A01D46/24
Filed: 1967-09-06
Abstract: ηχάνημα συλλογής ελαιών και ετέρων καρπών, χαρακτηριζόμενον είς το ότι περιλαμβάνει πλείονα στοιχεία αποσπάσεως καρπών αποτελούμενα έκ συγκροτημάτων οδόντων, λείας κα ιπεστροφγγυλωμένης επιφανείας, συνηθροισμένα και καταλλήλως διαχωρισμένα κα ιευθυγραμμισμένα επί ενεξαρτήτων υποστηριγμάτων, τα οποία υποβάλλονται, διά μηχανικών ή πνευματικών μέσων,είς παλινδρομικάς εναλλακτικάς κινήσεις ανόδου ή καθόδου ή είς περιστροφικήν κίνησιν, ενώ ταυτοχρόνως τοποθετούνται μεταξύ των κλάδων του δένδρου, συνεπεία του οποίου καθορίζεται ούτων η απόσπασις του καρπού.
Patent GR-75938-B (GR)
Inventor: LARUELLE CLAUDE
IPC: C07D239/48
Filed: 1982-03-19
Abstract: The present invention relates to novel soluble N2 substituted derivatives of 2,4-diamino 5-benzyl pyrimidines. These derivatives correspond to the general formula III below:    <IMAGE>  (III)  The novel soluble N2 substituted derivatives are powerful antibacterial agents.
Patent GR-1002752-B (GR)
Title: Alternating vertical pump
Inventor: SALAH DJELOUAH
IPC: F04B53/12
Filed: 1996-03-21
Abstract: Alternating vertical pump characterized in that the piston (8) is formed by a support (81, 82, 83) comprising a downward prolonged hub having reinforcement arms; the hub is transversed by the rod (7, 71, 72) and mounted in one piece in translation with the rod (7, 71, 72) and
Patent IN-168807-B (IN)
Inventor: KAYAERT ANDRE FIRMIN
IPC: C05C13/00
Filed: 1988-04-08
Abstract: A process for producing fertilizer granules containing urea and ammonium sulphate by granulation in a fluidized bed of particles is described. Ammonium sulphate particles are introduced into a fluidized bed and urea is applied to the particles in the fluidized bed by spraying an aqueous urea-containing liquid with a urea concentration of 70-99.9% by weight. Preferably, the aqueous urea solution contains a granulation additive and/or ammonium sulphate
Patent IN-162369-B (IN)
Inventor: HUEMER FRANZ XAVER
IPC: D03D37/00
Filed: 1985-06-07
Abstract: In the circular reed of the circular loom, a plurality of weaving shuttles circulate. Each weaving shuttle has rollers arranged in pairs at its top edge and its bottom edge. The rollers operate together with the corresponding gliding surfaces on the upper shuttle race or lower shuttle race of the circular reed, and each shuttle is supported to circulate on shuttle guide rods by the centrifugal force conveyed by the support elements. The shuttle guide rods of the circular reed define between them a slit in the region of the upper and the lower shuttle races, which slit receives upon opening of the travelling shed one of the warp threads of the upper shed or the lower shed, and form there an upper and a lower rollway, taking up the centrifugal force of the circulating weaving shuttle for the respective pairs of support rollers on the shuttle. The slit widens outside the rollways towards the reed-horizontal median plane to a warp-yarn crossing space. These measures permit a rapid increase of the rotational speed of the weaving shuttle and the utilization of larger warp yarn packages.
Patent IN-180638-B (IN)
Inventor: SUTEHALL RALPH
IPC: G02B6/44
Filed: 1990-06-27
Abstract: An optical fibre cable has a channel (2) loosely housing an optical ribbon element (3) and a non-optical ribbon element (3A) which both have an evenly distributed excess length of between 0.5% and 1% and adopt a regular undulating configuration in a thixotropic water blocking gel (28) in the channel.
Patent IN-161232-B (IN)
Inventor: MAILLIET PIERRE
IPC: F27D21/00
Filed: 1984-09-06
Abstract: An apparatus for determining the charging profile on the charging surface of a shaft furnace is presented. The apparatus consists of a plurality of level probes, each probe including a weight which is suspended vertically above the charging surface on the first end of a cable which projects from a supporting arm. The second end of each of these cables, in turn, is connected outside the furnace to respective winding drums, each drum being controlled by a driving device which raises or lowers the probe connected to the drum. This invention also consists of a monitoring device for measuring the unwinding of the cable from the drum and the descent of the probe onto the charging surface as well as a method of replacing an individual probe and its cable from outside the shaft furnace.
Patent RS-51892-B (RS)
Title: Process for the preparation of drospirenone
Inventor: ANDRIOLO ERIKA
IPC: C07J53/00
Filed: 2007-07-26
Abstract: A process for the preparation of Drospirenone (I) according to the following scheme   
wherein the substituent R is defined in the description. The process improves the product yield and purity by reducing the formation of undesired side-products and is particularly convenient for industrial-scale manufacturing.
Patent RS-52167-B (RS)
Title: Novel hterocyclic compounds as mglu5 antagonists
Inventor: LEONARDI AMEDEO
IPC: A61K31/4545
Filed: 2008-08-01
Abstract: This invention relates to novel heterocyclic compounds having selective affinity for the mGlu5 subtype of metabotropic receptors, pharmaceutical compositions thereof and uses for such compounds and compositions in the treatment of lower urinary tract disorders, such as neuromuscular dysfunction of the lower urinary tract, and in the treatment of migraine and gastroesophagael reflux disease (GERD).
Patent TW-I416954-B (TW)
IPC: H04N5/655
Filed: 2011-03-31
Granted: 2013-11-21
Abstract: The present invention provides a foldable display support, wherein when a support arm is in a standing state, a limiting sheet is located in a limiting part of a screen support rack for blocking, so only the forward/backward tilted angle of a screen can be adjusted, thereby preventing being unstable and falling due to the gravity center being overly backward. When the support arm is folded to a horizontal state, the gravity center is lowered, and a protrusion of a first cam abuts a protrusion of a second cam, such that the second cam axially moves and pushes the limiting sheet to be released from the limiting part of the screen support rack, at this moment, the screen is enabled to be backwardly rotated and folded to a horizontal state for reducing the occupied space, thereby ensuring the folding process to be smooth and stable and preventing from falling.