baber/WOPTO huggingface dataset:
Patent IT-1312591-B1 (IT)
Title: Protective doors for a circular knitter are curved structures which slide on guide rails within the contour of the machine to take up less floor space than required for swing doors
Inventor: LIN HUO-WANG
IPC: D04B/
Filed: 1999-05-31
Granted: 2002-04-22
Abstract: The protective door for a knitter has a sliding structure (2) in a partial cylindrical shape, with a first and a fourth position point and a sliding system. A second sliding structure (3) is symmetrical to the first, with a second and fourth position point and a sliding system, with its concave section towards the concave section of the first structure (2) and mounted at the same height as it. An upper curved sliding rail (4), with a guide roller (5), is along the curved surface formed by the two sliding structures (2,3). A lower curved sliding rail (8) is directly under the first rail (4), with a guide roller which is symmetrical to the upper guide roller (5). The upper rail (4) is supported by the lower rail (8), in a rigid construction, for the door sliding mechanism to move horizontally on the rails. One turning unit (6) has one end at the first positioning point of the first sliding structure (2), and extends along the upper sliding rail (4) to slide along it through the guide roller (5). The other end is mounted at the second positioning point at the concave section of the second sliding structure (3). A second turning unit (10) is at the lower sliding rail (8), with one end secured at the third positioning point for the second sliding structure (3), to move along the rail (8) through the guide roller, and its other end is secured to the fourth positioning point at the concave section of the first sliding structure (2). The sliding system mounted to the two sliding structures (2,3) has the shape of a coil (22,24,32,34) with flanged ends. The two curved sliding rails (4,8) have U-shaped steel bars. The two turning units (6,10) are a chain or steel cable with a rolling movement in relation to the guide rollers. The two sliding structures (2,3) are fitted outside the sliding rails (4,8), and the trough of the U-shaped steel bars is outwards to accommodate the chains/cables (6,10). The guide rollers have a vertical shaft, and they are mounted separately at the troughs of the sliding rails (4,8). The electrically-powered gear mechanism has a chain, mounted to the first (2) or second (3) sliding structures. The drive is an electromotor, with a drive shaft for a cogwheel at the chain, to move the sliding structures (2,3).
Patent IT-1305764-B1 (IT)
Title: Method for attaching an additional bottom to the external surface of the bottom of a container
Inventor: MARIN VISINO
IPC: B21J/
Filed: 1998-05-29
Granted: 2001-05-16
Abstract: The method comprises attaching the additional bottom (4) to the external surface of the bottom (3) of the container (1) by coining in a die with a male part (9) and a female (8) part which are connected to the footing and the moving slider of a press.
Patent IT-1289001-B1 (IT)
Inventor: PAVLICEVIC MILORAD
IPC: F27D27/00
Filed: 1996-10-14
Granted: 1998-09-25
Abstract: Method for the electromagnetic stirring of the liquid metal (14) in direct current electric arc furnaces comprising a hearth (35) defined by a floor (13) and by side walls (15), the electric arc furnaces including a central cathode (11) cooperating with anodes (12) arranged on the floor (13) of the furnace and fed by a main current (Io), wherein there is an electromagnetic system generating a magnetic field inside the liquid metal (14) whose vertical (Bz) and radial (Br) components interact respectively with the radial (Jr) and vertical (Jz) components of the overall current present in the liquid metal (14), the method using a first electromagnetic system comprising at least a first winding (19) through which a current (I1) flows and operating from inside the floor (13) and the walls (15) of the hearth (35), and a second electromagnetic system generating a secondary induced current (I3), between adjacent anodes (12), which circulates through the liquid metal (14). Device to achieve the above method and consisting of a first winding (19) through which a current (I1) flows, the first winding (19) comprising a plurality of spirals (20), at least some of the spirals (20) being arranged inside the refractory of the hearth (35) in cooperation with the floor (13) and with at least a vertical segment of the side walls (15). <IMAGE>
Patent JP-2815347-B1 (JP)
Title: 長尺布帛の漂白方法
IPC: D06L4/30
Filed: 1997-05-19
Granted: 1998-10-27
Abstract: 【要約】
【課題】  ＮａＢＨ 4  （水素化ホウ酸ナトリウム）の還 元力を布帛に用い、その活性化をメタノールあるいはエ タノール等のアルコールの作用によりより高めると共 に、反応をコントロールして、強い活性化ラジカルの作 用により、反応時間の短縮と熱エネルギーを節約し、さ らには繊維の脆化や硬化を避けることにより風合いの向 上を図りつつ、高度な白度を得ること。
【解決手段】  湿熱あるいは反応時間を適当に取る手法 を用いて漂白反応せしめることを特徴とする長尺布帛の 漂白方法。
Patent JP-2944651-B1 (JP)
Title: 店舗のポイント管理システム
IPC: G07G1/12
Filed: 1998-08-19
Granted: 1999-09-06
Abstract: 【要約】
【課題】  データ管理店舗分散方式でポイントの整合性 を保証することにより、レスポンス低下の原因であった 回線のトラフィックや本部でのデータ参照のトラフィッ クを減少させる。
【解決手段】  店舗ｍにおいて、記憶装置ｍ３の顧客情 報記憶部ｍ３１には、店舗ｍで管理されている顧客情報 が記憶されており、累積ポイント情報記憶部ｍ３２に は、現時点での顧客別の累積ポイントが記憶され、ポイ ント履歴情報記憶部ｍ３３には、過去に発生したポイン トの履歴が記憶され、更新情報記憶部ｍ３４には、発生 ポイントの更新情報が記憶される。本部ｈにおいて、記 憶装置ｈ３には、店舗ｍの記憶装置ｍ３と同様の記憶部 ｈ３１〜ｈ３４をもつが、各記憶部には、全店舗の情報 が、すべて記憶されている。ただし、本部ｈの更新情報 記憶部ｈ３４には、自店舗で管理されていない顧客のポ イントが発生した場合の更新情報のみ記憶される。
Patent JP-2738392-B1 (JP)
Title: 半導体装置の研磨装置及び研磨方法
IPC: H01L21/304
Filed: 1996-11-05
Granted: 1998-04-08
Abstract: 【要約】
【課題】  半導体ウェハ外周部分における研磨レートの 低下を抑え、半導体素子を半導体ウェハ外周近くまで作 製可能とすると共に、半導体ウェハ１枚当たりの有効な 半導体チップ数を増加させる。
【解決手段】  開示される研磨装置は、硬度が相異する 上層の硬質材料７及び下層の軟質材料８を積層してなる 研磨パッド９を備え、研磨パッド９の上層側の硬質材料 ７の硬度がＪＩＳ−Ｋ６３０１に準拠した９５程度に設 定されていると共に、研磨パッド９の下層側の軟質材料 ８の硬度がＪＩＳ−Ｋ６３０１に準拠した７５以上８５ 以下に設定されている。
Patent JP-2961111-B1 (JP)
Title: 吸音パネル
IPC: E01F8/02
Filed: 1998-10-19
Granted: 1999-10-12
Abstract: 【要約】
【課題】  高い耐候性と耐久性を有し、周囲の環境を破 壊することがなく、さらに、安全性が高く、かつ、施工 の容易な吸音パネルを提供すること。
【解決手段】  粒径２．０〜５．０ｍｍに粉砕した焼成 物を、結合材で混練し、空隙率３０〜７０％になるよう に圧縮することにより、所要の形状に成形し、焼成した 表面部材１１と、粒径０．３〜１．５ｍｍに粉砕した焼 成物を、結合材で混練し、空隙率３０〜７０％になるよ うに圧縮することにより、所要の形状に成形し、焼成し た吸音部材１２とを、空気層１３を介して積層する。
Patent MD-2815-B1 (MD)
Inventor: BOSTAN ION
IPC: B23F9/06
Filed: 2003-09-10
Abstract: Inventia se refera la constructia de masini, in special la prelucrarea rotilor dintate. Procedeul de prelucrare a rotilor dintate precesionale consta in aceea ca semifabricatului i se comunica o miscare de rotatie in jurul axei sale, prelucrarea se realizeaza cu o scula, axa careia, ca si axa rotii prelucrate, trece prin centrul de precesie. Semifabricatului suplimentar i se comunica o miscare sfero-spatiala in jurul centrului de precesie, totodata scula se fixeaza rigid fata de acesta. Dispozitivul contine o carcasa, pe care este montata scula si un mecanism de rotire a rotii prelucrate in jurul axei sale verticale, fixata pe o baza. Dispozitivul suplimentar include o furca in forma de U, fixata pe carcasa, in suporturile furcii este montata articulat o osie a crucii, iar pe a doua osie a ei este montat un sustinator in forma de U, pe care este situata baza pentru fixarea rotii prelucrate. Baza si fiecare dintre osiile crucii sunt legate cu servomotoare. Scula, fixata rigid pe carcasa, si servomotoarele sunt conectate la un sistem de dirijare computerizat. Scula poate fi executata ca un fascicul laser, jet de apa, fascicul de electroni, raze X sau ca un fir de electroeroziune. ŕ
Patent NO-334718-B1 (NO)
Inventor: BYERLY KENT A
IPC: G08C15/00
Filed: 2002-07-11
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module and a seismic data collection module. The data collection module is configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors. The master device transmits portions of commands to the slave device at a first time and the slave device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop in the slave is locked to a master clock in the master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes dc drift and provides a level transition in the command that can be used to maintain synchronism between master and slave.
Patent NO-326867-B1 (NO)
Inventor: KULOJARVI TAUNO
IPC: F16B7/18
Filed: 2003-06-05
Abstract: The invention relates to a vehicle chassis, a fastening arrangement and a fixing piece. Longitudinal beams (1) and transverse beams (2) of a vehicle are arranged on different levels relative to each other, and thereby, as distinct from prior art chassis structures, the transverse beams may extend as uniform pieces from a first side of the vehicle to its second side. At the intersection of a longitudinal beam and a transverse beam there is provided a plate-like fixing piece (5) separately fastened to both of the intersecting chassis beams and transferring the forces between the beams.
Patent NO-335441-B1 (NO)
Title: Anvendelse av en prostaglandinforbindelse til fremstilling av et farmasøytisk preparat for behandling av irritabel tarm-syndrom og/eller funksjonell dyspepsi
Inventor: UENO RYUJI
IPC: A61K31/5575
Filed: 2005-07-26
Abstract: Det er beskrevet en ny anvendelse av en kloridkanalåpner, spesielt en prostaglandinforbindelse, for behandling av abdominalt ubehag. Videre er det beskrevet en ny anvendelse av en kloridkanalåpner, spesielt en prostaglandinforbindelse, for behandling av funksjonelle gastro-intestinale forstyrrelser.
Patent NO-334946-B1 (NO)
Title: System og fremgangsmåte for fellesgjengivelse av multiple attributter
Inventor: CHUTER CHRISTOPHER JOHN
IPC: G06T11/20
Filed: 2006-02-22
Abstract: Det er beskrevet et apparat og fremgangsmåte for å forøke det kombinerte bildet av multiple attributter uten å kompromittere avbildningen av en attributt (200). Det kombinerte bildet av de multiple atfributtene blir forøkt for å analysere en forutbestemt egenskap avdekket av attributtene. Det kombinerte bildet kan bh interaktivt manipulert for å fremvise hver attributt i forhold til en imaginær lyskilde eller bh opplyst ved bruk av en speilende komponent (212-222).
Patent NO-327764-B1 (NO)
Title: Dempeanordning
Inventor: ROISER THOMAS
IPC: A45B9/00
Filed: 2006-06-28
Abstract: En dempeanordning, som er tilveiebrakt mellom et håndtak og stavrøret til en sportsstav slik som en skistav, kombinerer virkningen av en spiraltrykkfjær (17) med virkningen til en gasstrykkfjær, idet et stangformede legeme (5) kan bli forskjøvet inne i et rør (3). Et elastisk innlegg (13), som blir utsatt for virkningen fra spiraltrykkfjæren (17), er tilveiebrakt i enden av det stangformede legeme (5). Det stangformede legeme (5) blir presset inn i røret (3), for eksempel når staven blir satt mot bakken og innlegget (13) deformeres og ligger tettende an mot røret (3) fra innsiden, slik at det dannes en gasstrykkfjær. Dempevirkningen blir progressivt øket inne i røret (3) gjennom friksjonen fra det deformerbare innlegget (13).
Patent NO-334464-B1 (NO)
Inventor: WALKER SIMON CHRISTOPHER DORNTON
IPC: A61G7/05
Filed: 2007-01-11
Abstract: A patient lifting device is provided. The patient lifting device includes two side limbs connected to a suspension mounting for suspending the device from a hoist. Each side limb includes a support bar including patient support elements. The patient support elements include a pair of side pads for engaging beneath the armpits of a patient and against sides of the patient's ribcage, and a patient upper leg or posterior support means. The two support bars connect together with an assembly from which the patient upper leg or posterior support means depends. Each support bar is pivotally mounted about a pivotal axis defining a balance axis about which the moments imparted by the weight of the patient's upper body through the side pads and by the weight of the patient's lower body through the upper leg or posterior support means can react against one another in an equal and opposite fashion.
Patent NO-333446-B1 (NO)
Title: Anordning for automatisk til- og frakobling av last ved kranloft
Inventor: HASLUM KRISTIAN
IPC: B66C1/10
Filed: 2009-01-20
Abstract: En bærebjelke (1) senkes ned over bæreelementet (200) og låseelementet (100) befinner seg i sin første, horisontale posisjon, vil bæreelementet (200) først svinge opp låseelementets (100) andre, ytre ende. Så snart låseelementet (100) er innrettet med åpningen (201) i bæreelementet (200), vil det falle tilbake til den første, horisontale utgangsposisjonen, og lasten kan løftes. Når løftet er gjennomført, senkes bærebjelken inntil låseelementet (100) glir langs åpningselementet (202). Derved svinges låseelementet (100) tilbake gjennom bæreåpningen (201) til sin andre, åpne posisjon. I denne tilstanden er bærebjelken (1) frakoblet fra bæreelementet (200), og kan heves uten at lasten følger med. Det kan tilveiebringes mekaniske midler (300) nær kranen (3) som vipper låseelementet (100) tilbake til sin første, horisontale posisjon. Bærebjelken (1) kan dermed senkes ned over bæreelementene (200) for et nytt løft om nødvendig.
Patent NO-333248-B1 (NO)
Title: Isolert presenning
Inventor: DALGAARD LARS
IPC: E04B1/78
Filed: 2009-10-26
Abstract: Den foreliggende oppfinnelsen gjelder en isolert presenning (401) og en metode for å produsere samme isolert presenning (401) som består av minst to lag med duk (404 og 405) videreat minst et første lag med duk. (404) har midler for sikring av minst ett stykke isolasjon (7) til den og et ekstra lag med stoff (5) koblet til nevnte første laget med stoff (4) og minst en ventil festet til nevnte presenning (1).
Patent NO-341838-B1 (NO)
Inventor: MAKSUMIC ADIN
IPC: H02K15/03
Filed: 2017-01-26
Abstract: Method for internal access in an electric machine (10), said machine (10) comprising a motor housing (12) with a stator(14) and a rotor (16) equipped with permanent magnets, said rotor (16) being conjnected to a central shaft (24) by bearings (20), and the motor housing (12) com prises end plates (18) and bearing housing (22) covering said bearings (20) supporting the shaft (24), wherein the method com prises the steps: inserting a num ber of locking wedges (40) through hoies (26) in the end plate (19), and into an air gap (28) between the rotor (16) and the stator (14), firmly locking the rotor (16) with respect to the stator (14) using said locking wedges (40) in the air gap (28), and removing the bearing housing (22) for access to intemal parts of the machine (10).
Patent PL-74590-B1 (PL)
Title: Diamond-studded drilling tool[us3696875a]
IPC: E21B10/00
Filed: 1970-03-03
Abstract: A high output drilling tool for earth of any nature, the drilling tool having openings for the injection of sludge and protuberances distributed over the end surface whose average height is several times greater than its average thickness and which have attack edges for tearing away earth.
[US3696875A]
Patent PL-88988-B1 (PL)
Title: Method and apparatus for measuring particle concentration in a fluid suspension of particles [us3733547a]
IPC: H03K5/153
Filed: 1972-07-26
Abstract: The apparatus includes (1) a Coulter type particle analyzing device for producing a particle pulse each time a particle is in a sensing zone, each particle pulse having poorly defined leading and trailing edges and a duration related to the time the particle is in the sensing zone, (2) electrical circuitry connected to the output of the particle analyzing device for producing, upon sensing each particle pulse above a predetermined threshold level, an output pulse having a selected clearly defined duration established between (a) a clearly defined leading edge of the output pulse occurring at a time substantially equal to the time of inflection of the slope of the leading edge of the particle pulse and (b) a clearly defined trailing edge of the output pulse occurring at substantially the same time that the instantaneous value of the trailing edge of the particle pulse falls below the level of the instantaneous value of the leading edge of the particle pulse at the time of inflection of the slope of the leading edge of the particle pulse, and (3) apparatus for measuring and displaying the duty factor of a train of the output pulses.
[US3733547A]
Patent PL-125420-B1 (PL)
Title: Paste for filling tooth-canals
IPC: A61K6/00
Filed: 1978-04-19
Abstract: An endodontical treatment paste, in particular for the root canal filling of teeth comprising a non-coagulating antiseptic agent such as parachlorophenol camphor, a mixture of products for causing the setting of the paste such as a mixture of eugenol and zinc oxide, and an agent for retarding the setting of the paste such as diiodothymol. The paste may also include pulverized menthol crystals and/or silver powder.
Patent PL-149240-B1 (PL)
Title: Process for preparing 5r,6s-6-/1r-1-hydroxyethyl/-2-/1-oxo-3-thiolanylthio/-2-penem-3-carboxylic acids
IPC: C07D499/88
Filed: 1986-10-16
Abstract: Process and intermediates for the conversion of 3R,4R-4-acetoxy-3-[1R-1-(silyloxy)ethyl]-2-azetidinones to antibacterial 5R,6S-6-(1R-1-hydroxyethyl)-2-(1-oxo-3-thiolanylthio)-2-pen em-3-carboxylic acids, and the pharmaceutically-acceptable salts and pivaloyloxymethyl esters thereof.
Patent PL-159673-B1 (PL)
Title: Method of producing a marble-like pattern on jeans fabrics
IPC: C22B/
Filed: 1988-10-14
Abstract: The method for treatment of scale and burr slurry to be used as a component of a blast-furnace charge, characterised in that the drying and making its usable as an charge component, consisting in that scale-burr slurry in the first phase is placed on a fine-grain ore layer, and then, after preliminary straining, the slurry is transferred onto a layer of lump ore, at least 0.5 meter thick, whereas the slurry is arranged in a layer of 10 to 25 cm thickness, and is left for a time length of 2 to 5 weeks, and then the slurry layer together with the lump ore layer beneath it are loaded to ore bins at the blast furnace, whence in a known way it is used as a blast-furnace charge.
Patent PL-157428-B1 (PL)
Title: Anticorrosive and decorative agent
IPC: C09D163/10
Filed: 1988-10-28
Abstract: An anti-corrosion and decorative agent containing epoxy ester resin, aluminium flakes, microtalc and 50 to 65 parts by weight of auxiliary agents typical for this type of painter's products, such as: pigment moistening agents, siccatives, moisture-absorbing agents, anti-skinning agents, pigment deposition inhibitors added in large amounts - from 125 to 160 parts by weight of solvents. The agent is distinctive in that the ratio of epoxy ester resin to aluminium flakes to finely-ground microtalc in relation to 100% components amounts to 350-380 to 80-85 to 70-75 respectively; with the reservation that the epoxy ester resin is constituted by petroleum spirit dissolvable resin received from the reaction of epoxy resin with flaxseed oil fatty acids containing 50% of fatty acids in relation to 100% resin.
Patent PL-165497-B1 (PL)
Title: Method of obtaining novel pyridazin amines
Inventor: STOKBROEKX RAYMOND A
IPC: C07D263/32
Filed: 1990-12-21
Abstract: Piperidinyl, pyrrolidinyl, azepinyl and piperazinyl pyridazines of formula <CHEM>  wherein X represents CH or N; R<1> represents hydrogen, C1-4alkyl, halo, hydroxy, trifluoromethyl, cyano, C1-4alkyloxy, C1-4alkylthio, C1-4alkylsulfinyl, C1-4alkylsulfonyl, C1-4alkyloxycarbonyl, C1-4alkylcarbonyl or aryl; R<2> and R<3> represent hydrogen or C1-4alkyl; Alk represents C1-4alkanediyl;  R<4> and R<5> represent hydrogen, C1-4alkyl or halo; and  Het represents <CHEM> the addition salts and stereochemically isomeric forms thereof, said compounds having antipicornaviral activity. Pharmaceutical compositions containing these compounds as active ingredient, and methods of preparing said compounds and pharmaceutical compositions.
Patent PL-169709-B1 (PL)
Title: Method of and apparatus for creating and collecting the viewing statistics from remote terminals in a cable tv system
Inventor: MCMULLAN JAY C JR
IPC: H04N7/173
Filed: 1992-03-19
Abstract: A method and apparatus for generating and collecting viewing statistics in a cable television system (100) is provided. A system manager (310) transmits one or more record times downstream to one or more remote terminals (120, 315a-315c) indicating a future point in time at which the terminal (120, 315a-315c) is to record the viewing statistics. The remote terminals (120, 315a-315c) store the one ore more record times in memory (503) and when the record time matches the current real time, the remote terminals (120, 315a-315c) store in memory (503) the viewing statistics. Thereafter, in response to a polling signal from the system manager (310), the set-top terminals (120, 315a-315c) transmit the previously recorded viewing statistics along with a time code corresponding to the time at which the viewing statistics were recorded upstream to the system manager (310), and the system manager (310) processes this information accordingly.
Patent PL-170105-B1 (PL)
Inventor: LONIEWSKI PIOTR
IPC: B23Q17/00
Filed: 1993-03-22
Abstract: 1. Przyrząd do znajdowania położenia osi
wrzecion frezarek i wytaczarek względem płaszczyzn-baz
obrabianego przedmiotu, znamienny tym,
że posiada podłużną belkę (1) charakteryzującą się
tym, żema ona co najmniejjedną płaską powierzchnię
boczną (2), i że posiada dwa tej samej grubości krążki
lub bloczki (3) przymocowane do tej płaskiej powierzchni
(2) podłużnej belki (1) najkorzystniej w pobliżu
jej obydwu końców.
Patent PL-172078-B1 (PL)
Inventor: MOL JERZY
IPC: H02P9/06
Filed: 1993-06-24
Abstract: Układ elektro-mechaniczny napędu geneiatora,
zawierający silnik elektryczny sprzęzony poprzez
sprzęgło, przekładnię zębatą z zespołem pomp,
znamienny tym, ze poszczególne pompy hydrauliczne
(6). napędzane pośrednio i oddzielnie od silników
elektrycznych (2) umieszczone są pionowo w
zbiorniku olejowym (6a) i połączone są oddzielnymi
przewodami olejowymi (7), poprzez przewód
zbiorczy (7a) z silnikiem hydraulicznym (8), który
sprzęzony za pomocą sprzęgła hydraulicznego (10)
z generatorem (11) umieszczony jest powyżej zbiornika
(6a), a przebieg oleju między pompami (6) a
silnikiem (8) jest w obiegu zamkniętym
Patent PL-166439-B1 (PL)
Title: Signal recording/reproducing magnetic tape cassette
Inventor: VOLLMANN NORBERT CH
IPC: G11B15/07
Filed: 1990-05-31
Abstract: A new system for recording/reproducing signals on magnetic tape in cassettes comprises new apparatuses (DR2) and cassettes (C2) in conformity with a new standard which deviates from an existing standard which prescribes apparatuses (DR1) and cassettes (C1). The new cassette (C2) is a modification of the old cassette (C1) and has the same principal dimensions but a deviating exterior shape so that cassettes of both types, although they are substantially similar and has the same principal dimensions, can be distinguished from one another by a user in a distinctly visible and distinctly tactile manner even in the absence of a distinctive labelling.
Patent PL-178188-B1 (PL)
Title: Method of detecting a potentiality of coal self-ignition in a coal bed
Inventor: CYGANKIEWICZ JANUSZ
IPC: E21F5/00
Filed: 1995-12-06
Abstract: The method of early detection of the possibility of coal self-ignition in a coal bed consists in periodic sampling of air for chemical analysis. Unique characteristics: Trace amounts of non-saturated hydrocarbons - ethylene, acetylene and propylene - are determined for the air samples collected during the longwall exploitation. The dependencies of the ratio of ethylene content to acetylene content and of acetylene content to propylene content are analysed as a time function. The data are compared to the data obtained in lab conditions, when the same coal is heated and the released gasses are analysed.