baber/WOPTO huggingface dataset:
Patent KR-830001907-B1 (KR)
Title: 3-할로-세팔로스포린 이미노할라이드의 제조방법
IPC: C07D501/59
Filed: 1980-02-04
Granted: 1983-09-19
Abstract: 내용 없음.
Patent KR-820000780-B1 (KR)
Title: Process for preparation of methyl chloride
Inventor: SON YUN SOO
IPC: B01J21/00
Filed: 1980-05-12
Granted: 1982-05-10
Abstract: Methyl chloride was prepd. by reacting HCl with MeOH in the presence of zeolite as catalyst.  Thus, vapor state MeOH 19.4 g/hr and HCl 26.5 g/hr were fed to the 1-2 mm crude zeolite 18 g packed reactor and then catalyst layer was heated to 250oC to give methyl chloride (conversion rate 90 %).  The crude zeolite was composed of SiO2 62.8, Al2O3 12.8, Fe2O3 1.6, CaO 2.5, MgO 1.4, Na2O 1.2, K2O 3.0, and TiO2 12.8, Fe2O3 1.6, CaO 2.5, MgO 1.4, Na2O 1.2, K2O 3.0, and TiO2 0.3 %.
Patent KR-820000290-B1 (KR)
Title: The transmission of dryer used in seaweed drying
Inventor: HA SEON HO
IPC: A23L17/60
Filed: 1980-10-31
Granted: 1982-03-19
Abstract: The transmission of seaweed dryer comprises a rotating shaft(1) supported by two ball bearings(3,3') fitted in a hollow shaft(2), one member(5) of a V-pulley having a cross-shaped groove(5") at the top of conical surface(5'), the other member(7) of a V-pulley having the other cross-shaped groove(7") at the top of conical surface(7') to be meshed with the 1st member(5) of a V-pulley, and a cover member(13) with a shaft(12) for supporting a taper rolling bearing(11) in cooperation with the conical frustum cavity formed in the other member(7) of a V-pulley.
Patent KR-840001847-B1 (KR)
Title: Liquid crystal composition
Inventor: HARRISON KENNETH JOHN
IPC: C09B1/50
Filed: 1981-07-28
Granted: 1984-10-22
Abstract: Material suitable for a guest-host liq. crystal device comprises a sol. of liq. crystal material and pleochroicdye of formula (I). In (I), R is H or a lower alkyl; and each of R1 and R2 is 1-10C alkyl; one of X and Y is OH, the other is NHR. Specifically, (I) is 4,5- diamino-2,7-di-isobutyl 1,8-dihydroxyanthraquinone. Pref. the material includes cyanobiphenyl liq. crystal compd(s). The material is suitable for Freederickz effect or twisted nematic effect devices. The material is also suitable for cholesteric-to-nematic phase-change liq. crystal formed from a mixt. of nematic material and chiral materials. The material is used in electro-optic display applications.
Patent KR-860001464-B1 (KR)
Title: Putting exerciser
Inventor: MIYAME TOSHIAKI
IPC: A63B69/36
Filed: 1981-12-11
Granted: 1986-09-26
Abstract: Multiple first sensors are established on the plate with a constant distance from the shaft direction. The second sensors are arranged alternately with the first ones. These sensors are connected to a display device by a computer. The head of a putter is covered with a reflecting portion and an unreflacting portion. When the putter passees through the plate, the sensors sense the movement of the putter and the computer sends a signal to the display device. The passing direction of the putter is indicated on the display device by binary numbers.
Patent KR-880000414-B1 (KR)
Title: Ship hulls for single-screw vessel
Inventor: NONNECKE ERNST A
IPC: B63B1/08
Filed: 1982-08-14
Granted: 1988-03-22
Abstract: The asymmetric aftbody for the hull of a ship has a twisted shape operative to achieve higher efficiency at practically all aftbody block coefficients by improving water flow.  A shape is provided where the tangential components of the water are distributed as favourably as possible over the entire propeller circumference.  The aftbody has an upper part above the propeller shaft which is combined with a part of the hull below the propeller shaft.  The sectional areas of the hull have a bulbous or a ushaped configuration with the center lines of the sectional areas being inclined away from the vertical longitudinal plane through the propeller center in opposite direction to that of propeller rotation.
Patent KR-880001284-B1 (KR)
Title: Method for the preparation azino rifamycins
Inventor: FRANCESCHI GIOVANNI
IPC: A61P31/04
Filed: 1982-11-16
Granted: 1988-07-18
Abstract: A method for preparing azinolipamycin having formula (I) comprises (i) reacting 3-formyl lipamycin SV dissolved in nonprotonic solvent with hydrazine-hydrates at 0 to -20 deg.C to produce 3-hydrazo methyl lipamycin SV as intermediate, (ii) reacting with chloroform iminium chloride in the presence of tertiary amine i.e. triethylamine without prior sepn. to obtain desired compd. and (iii) sepg. (I) from the rxn. mixt. and refining.  Y=acetyl, R1=C1-4 straight or side-chain alkyl, R2=cyclohexyl, C1-4 straight or side chain alkyl, Ph or benzyl.
Patent KR-850001867-B1 (KR)
Title: Open apparatus of exhaust air rifle
Inventor: JIBA KENSUKE
IPC: F41B11/721
Filed: 1983-02-22
Granted: 1985-12-28
Abstract: An absorbing plate(18) is assembled with an exhaust valve(12), which is stretched along the return spring(9). The first shock absorber(35) is arranged on the return spring side. An app.(19), which introduces the sliding movement of the(12) in the vertical direction, is established between the exhaust valve and the trigger(28). (19) has a hole larger than the diameter of(12), to provide elasticity and to prevent alignment of the exhaust valve with the hole. The firing shock is greatly reduced by the absorbing plate and the first shock absorber. This app. prevents firing, when the rifle is accidentelly dropped.
Patent KR-870001221-B1 (KR)
Title: Producing support for polyurethan film
Inventor: SHIBANO DOMISHI
IPC: B29C61/00
Filed: 1983-05-10
Granted: 1987-06-22
Abstract: Support for use in the formation of polyurethan film is produced by coating a mixt. of 65-95 wt.% of polypropylene and 5-35 wt.% of polyethylene to form a release layer.  The temp. of the mixt. during coating is controlled at below 300deg. C. Pref. polyethylene is LLDPE and the mixt. has a melt flow rate 10-40g/10 mins. (by JIS K 6758) and density 0.89-0.92g/cm3 (by JIS K 6758). Release layer is embossed and coated with polyurethan.
Patent KR-890000239-B1 (KR)
Title: Chintz fabric and method of producing same
Inventor: HENDRIX JAMES EASTON
IPC: D06C27/00
Filed: 1984-02-01
Granted: 1989-03-11
Abstract: Chintz fabrics (F) are formed by warp and woof (10,11), and they have good drapability property, luster, set coating (14) of silicon polymer, slick surfaces.  Thus, supply polyester/cotton blend (F) through pad (21) and impregnate in bath (contg. DMDHEU resin 5%, MgCl2 catalyst 5%, solusoft 115 3%, damping agent 0.1%), dry fabric (F) at 220 deg. F by velosity of 90yard/h on tenter frame (22), wind on roll (23) and supply into roll calender (24) operated at 400 deg. F and at 1900 psi, passing into setting oven (25) and wind on roll (26) to give improved chintz fabric (F).
Patent KR-920003304-B1 (KR)
Inventor: CAMLIBEL IRFAN
IPC: H01L31/18
Filed: 1984-06-02
Granted: 1992-04-27
Abstract: 내용 없음.
Patent KR-890004649-B1 (KR)
Title: Inverter
Inventor: OKADO TICHIRO
IPC: H02M7/5387
Filed: 1984-10-06
Granted: 1989-11-21
Abstract: A bridge connection of electric valves each comprises a reverse parallel connection of a semi-conductor switching element and a diode.  A DC power is converted to an AC power by PWM control.  A voltage detection device is probided to detect an output voltage of the inverter.  The pulse width of the pulse width modulation signals is corrected in accordance with the comparison of the detected voltage and the PWM signal.  A drive circuit, which provides a dead time during which the switching elements of the electric valves connected in series uses the corrected PWM signal for driving the switching element.
Patent KR-920004584-B1 (KR)
Inventor: PERHAGEN YOHANES P C M
IPC: G11B17/051
Filed: 1984-11-08
Granted: 1992-06-11
Abstract: 내용 없음.
Patent KR-890002673-B1 (KR)
Title: Secondary electrical energy storage device and electrode therefor
Inventor: MCCULLOUGH FRANCIS P JR
IPC: D01F9/32
Filed: 1984-12-04
Granted: 1989-07-22
Abstract: A diamensionally stable electrode for use in a secondary electrical energy storage device comprises an electrode body of an electrically conductive carbonaceous material, having a skeletal orientation of oriented fused benzenoidal structure moieties, at least at or near the surface, and a current collector electrically associated therewith, wherein the carbonaceous material has a Youngs modulus of form 1,000,000 to 55,000,000 psi and undergoes a physical dimensional change of less than 5% during repeated electrical charge and discharge cycling.
Patent KR-900003020-B1 (KR)
Title: Process for preparing of l-carnitine and alkanoyl l-carnitines
Inventor: CAVAZZA CLAUDIO
IPC: A61K31/195
Filed: 1984-12-17
Granted: 1990-05-04
Abstract: L-carnitine and alkanoyl L-carnitine non-hygroscopic salts of formula (I) is prepd. by (a) converting a chloride of formula (II) to the corresp. inner salt, (b) reacting an aq. or alcoholic soln. of the inner salt with an equimolar amt. of aspartic, citric, phosphoric, fumaric, lactic, maleic, oxalic or sulphuric acid, or a semi-molar amt. of orotic acid at room temp. to 50≰C , and (c) isolating (I) by the concentration of freeze-drying of the obtd. salt. In the formulas, X- is acid asparate, acid citrate, acid phosphate, acid fumarate, lactate, acid maleate, acid oxalate, acid sulphate or orotate anion; R is H or lower alkanoyl; n is 0.5 or 1.
Patent KR-880000312-B1 (KR)
Title: Manufacturing process for powder deer's blood
Inventor: PAEK IN-BOM
IPC: A23L3/28
Filed: 1985-10-26
Granted: 1988-03-19
Abstract: Dear blood was powdered by lyophilization.  Thus, fresh blood collected from deer was mixed with 30% edible alcohol at a ratio of 5%, quick-freze to -70≰C, freeze-treated in 2 steps of -5≰C and -30≰C to lyophilized at -30 C to give powdered deer blood.
Patent KR-880002240-B1 (KR)
Title: Process for the preparation of acyl-lactam compound
Inventor: JOSEPH J M BONGERS
IPC: C08G69/14
Filed: 1985-12-20
Granted: 1988-10-20
Abstract: Acyl lactam compd. is prepd. by reacting rxn. product (obtd. from lactam of formula HO-C(=O)-R"-C(=O)-(-L) i.e. decano lactam, capro lactam with dicarboxylic acid anhydride, R"=divalent radical of dicarboxylic acid anhydride, (-L)-closed lactam ring)with polyol i.e. polyether polyol, polyeste polyol, polybytadien polyol, polymeric polyol at the below 150 deg.C esp. 80-130 deg.C. Diphenylcarbodiimide may be use as a catalyst to accelerate esterification.
Patent KR-900008273-B1 (KR)
Inventor: KERN MARK T
IPC: G08B17/12
Filed: 1985-02-11
Granted: 1990-11-10
Abstract: 내용 없음.
Patent KR-940009457-B1 (KR)
Inventor: BOUCHET RENE
IPC: E02B3/06
Filed: 1986-01-24
Granted: 1994-10-13
Abstract: 내용 없음.
Patent KR-900007285-B1 (KR)
Title: Box-forming corner member and box using the same
Inventor: HIROOMI MATSUURA
IPC: B65D6/34
Filed: 1986-02-19
Granted: 1990-10-08
Abstract: A corner assembly member (4) for forming the corner of a box utilising a bottom panel (1) and two adjacent side panels (2a,2b), comprising a bottom portion (3) for receiving the corner of the bottom panel (1) and two side protions (4a,4b) each for receiving one end of a side panel (2a,2b), characterised in that hinge means (13a,13b) are provided between each side portion (4a,4b) and the bottom portion (3), whereby each such side portion (4a,4b) can be bent to occupy a general plane at right angle to the general plane of the bottom portion (3); and locking means (15,16) are provided on each side portion (4a,4b) for locking interengagement when the side portions (4a,4b) are both folded up from the bottom portion (3).
Patent KR-890001921-B1 (KR)
Title: A process for the production of a compound charcoal
Inventor: KIM SANG-HWAN
IPC: C10L5/00
Filed: 1986-06-04
Granted: 1989-05-31
Abstract: -4 ratio to be below 15% of water content, pass the mixture through a heated (300 deg.C) extrusion tube (3) in about 30 sec to give a stick of compd. charcoal.
Patent KR-910002389-B1 (KR)
Inventor: JIMENEZ RENE C
IPC: C08F222/32
Filed: 1986-06-19
Granted: 1991-04-20
Abstract: 내용 없음.
Patent KR-890003005-B1 (KR)
Title: Preparation of olefin resin composition
Inventor: YO JONG-KI
IPC: C08L23/12
Filed: 1986-08-05
Granted: 1989-08-18
Abstract: A process for preparing an olefinic resin compsn. comprises (a) partially-crosslinking the melting mixt. of 5-40 wt. parts crystalline polypropylen, 60-95 wt. parts olefinic rubber, 0.01-5 wt. parts organic peroxide and 1-30 wt. parts process oil, and (b) heat- treating in the extruder which is added with 0.01-5 wt. parts organic peroxide and 60-400 wt. parts organic peroxide.  The resin compsn. has a good heat resistance and weather resistance and a high mechanical strength.  The compsn. is useful for automobile parts.
Patent KR-900000349-B1 (KR)
Title: Fluorescent material for crt
Inventor: DAKAHARA DAKESI
IPC: H01J29/20
Filed: 1986-08-25
Granted: 1990-01-25
Abstract: A cathode ray tube comprises an evacuated envelope, an electron excitation source, and a screen contg. zinc silicate phosphor on it which consists of a compsn. of formula aZnO SiO2 : MnxIny[1.5<=a<=2 ; 5x10-5<=X<=3x10-2; 1x10-5<=y<=1x10-2 .  The improved phosphor is provided for the CRT having a long persitance and high brightness, without need for a toxic arsenic activator.
Patent KR-890001063-B1 (KR)
Title: Clamping device for work
Inventor: KUELLBULIN ROLF
IPC: B25B5/06
Filed: 1986-09-01
Granted: 1989-04-22
Abstract: The clamp uses a pivotal and lengthways adjusting clamping finger whose path is controlled by a pressure piston responsible for sequencing the pivot and longitudinal movements.  The piston (22) has a wedge sector forming a control surface (34) travelled by a slider (31) rigidly coupled to the finger (16) to control the clamping movement at right angles to the piston travel.  A stop (35) at the end of the surface (34) is engaged by the slider (31) as the piston moves into the release position.  This entrains the finger into the work release position.
Patent KR-950002505-B1 (KR)
Inventor: NORBER GARALD
IPC: B60S1/36
Filed: 1986-10-29
Granted: 1995-03-21
Abstract: 내용 없음.
Patent KR-900007638-B1 (KR)
Title: Lasor deflecting display device
Inventor: KO JONG-WAN
IPC: H04N3/16
Filed: 1986-11-08
Granted: 1990-10-17
Abstract: The display device comprises a signal processing circuit, a laser diode driving circuit, a colour mixing part, an optical fiber, a deflectin mechanism. The deflection mechanism comprises; supporting rods (13a,13b) fixed on a supporting frame (14); a support (18a) having a groove (17a); a horizontal deflection piece (24) having a rotational moving shaft (28a) inserted in the groove, a support (18b) having a groove (17b); a vertical deflection piece (23) having a rotational moving shaft (28b) inserted in the groove (17b); a horizontal magnet (12); a vertical magnet (11); a fixing pipe (19); a supporting pipe (27); and a lens mechanism.
Patent KR-930000500-B1 (KR)
Inventor: DOSON WATTS D
IPC: F16L15/00
Filed: 1984-11-23
Granted: 1993-01-21
Abstract: 내용 없음.
Patent KR-900007338-B1 (KR)
Title: Vertically opening and closing type tire vulcanizer
Inventor: FUJIEDA YASUHIKO
IPC: B29C33/02
Filed: 1987-01-16
Granted: 1990-10-08
Abstract: A vertically opening and closing type tire vulcanizer having several moulds comprises a commom frame to the top of which a horizontal top frame is connected, lower moulds and upper moulds on the base and side of the common frame respectively. Clamping mechanisms are supported on a clamping force generating cylinder. Construction and operations of mould clamping mechanism and mould height adjusting mechanism are simplified and facilitated.
Patent KR-910005557-B1 (KR)
Inventor: GLASS EDWARD N
IPC: G11B20/12
Filed: 1987-02-17
Granted: 1991-07-31
Abstract: 내용 없음.
Patent KR-940011684-B1 (KR)
Title: Device for calculating radius of tape in video tape recorder
Inventor: YU JAE-CHON
IPC: G11B27/10
Filed: 1987-07-14
Granted: 1994-12-23
Abstract: The calculating means using one photo interrupt port to calculate the radius of the supply reel comprises a photo interrupt means (10) on the supply reel generating the interrupt pluses; a counting circuit (20) generating the reset pluses according to the preset counting value; an integrator (30) producing the analog voltage corresponding to the speed of the supply reel; a subtracter (40) feeding the voltage controlled oscillator (50) by subtracting the preset voltage; an operating means (70) calculating the tape remainder by counting the number of the pulses produced by a voltage controlled oscillator (50).
Patent KR-900006123-B1 (KR)
Title: Process for the preparation of 4-methyl-1-pentene
Inventor: STEVENS JAMES C
IPC: B01J31/00
Filed: 1987-07-30
Granted: 1990-08-24
Abstract: 4-Methyl-1-pentene prepn. involves contacting C3H6 and catalyst contg. uranium di(poly-substd. cyclopentadienyl) hydride complex under reaction conditions to produce 4-methyl-1-pentene with 94 mole% min. selectivity (Pref. 96, 98 or 99 mole% min.) w.r.t. C6  olefins or all C6 cpd. Rare earth metals (atomic numbers 57-71) are also suitable in place of the U. La and Nd are pref.. 4-Methyl-pentene is useful as a (co)monomer in polyole fin prodn.
Patent KR-900007719-B1 (KR)
Title: Underfloor heating system and method for heating the same
Inventor: CHOI YOUNG-TAEK
IPC: F24D13/04
Filed: 1987-08-12
Granted: 1990-10-19
Abstract: The system maintains constant indoor temperature, improves heating efficiency through heating floor, regenerating and steadily radiating. The system includes isolated cavity (1) between cavity bottom (2) and floor (4); electric heater (5) with upper heat- diffusion plate (8) for radiating heat; floor (4) for convection- heating air.
Patent KR-900008490-B1 (KR)
Inventor: NISHIMURA KOZO
IPC: F16D27/02
Filed: 1987-09-29
Granted: 1990-11-22
Abstract: 내용 없음.
Patent KR-910003197-B1 (KR)
Inventor: KAWAHARA ESUTONU
IPC: G11B21/02
Filed: 1987-11-27
Granted: 1991-05-22
Abstract: 내용 없음.
Patent KR-900007604-B1 (KR)
Title: Thick film circuit substrate
Inventor: MURATA MITSURU
IPC: H05K1/16
Filed: 1987-12-02
Granted: 1990-10-17
Abstract: The resistance-trimming resistor has two ends overlapping and thus electrically connected to the facing ends of the two conductors, respectively. The function-trimming resistor extends perpendicular to the second conductor, and has one end portion which extends at right angles to, overlaps and is therefore electrically coupled to the thin intermediate portion of the second conductor. A laser beam is applied onto the resistance-trimming resistor, while the resistance between those ends on the conductors which face away from each other is being measured. A notch is cut in the function-trimming resistor. A laser beam is applied onto the function-trimming resistor, thereby cutting a notch; the resistor is cut into two parts; thus the resistance is adjusted between the ends of the conductors.
Patent KR-950005671-B1 (KR)
Title: Hammer hittig strength control device
Inventor: KIM JONG-KYU
IPC: B41J9/36
Filed: 1988-04-30
Granted: 1995-05-29
Abstract: The device for regularly controlling the hammer strength according to the letter size of the printer wheel, comprises a CPU connected with an OP amplifier (OP1), resistances (R1-R7), a condenser (C3) for checking the change of the power voltage by steps; comparing device (IC1), for driving the hammer solenoid (HS), connected with the transistors (Q2,Q3); the hammer solenoid (HS) is connected with the minus input terminal of the comparing device (IC2), which is connected with the output terminal of the upper comparing device (OC2).
Patent KR-920000221-B1 (KR)
Inventor: SATO TOSHIAKI
IPC: C08L67/00
Filed: 1988-05-04
Granted: 1992-01-10
Abstract: 내용 없음.
Patent KR-960000589-B1 (KR)
Title: Forming method for vent synthetic resin articles
Inventor: HWANG JIN-HYUNG
IPC: B29C37/00
Filed: 1988-07-29
Granted: 1996-01-09
Abstract: The method comprises passing a vinyl sheet between a pin roll(10) and a rubber roll(9) to contact one surface of the sheet with surface of pin roll(10) and other surface of the sheet with the rubber roll(9). Pins(10') of the pin roll forms ventilating holes of the vinyl sheet. An infrared rays heater(11) installed around of the pin roll, heats the pins(10') to melt the vinyl sheet, and the pin roll is heated to the softening temperature of the vinyl sheet in advance. The obtained vinyl sheet with ventilating holes is used in manufacture of shoes.
Patent KR-910006642-B1 (KR)
Inventor: TAKI KAZUHIRO
IPC: C22F1/00
Filed: 1988-08-26
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-960006213-B1 (KR)
Inventor: OGATA SATOSHI
IPC: B29C37/00
Filed: 1988-09-09
Granted: 1996-05-11
Abstract: 내용 없음.
Patent KR-920002799-B1 (KR)
Inventor: MILSOP BRYAN A
IPC: G11B27/10
Filed: 1989-01-07
Granted: 1992-04-03
Abstract: 내용 없음.
Patent KR-910008583-B1 (KR)
Inventor: TSAI CHUNG C
IPC: C08G18/65
Filed: 1989-01-31
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-920004103-B1 (KR)
Inventor: SIKEO SAKASHITA
IPC: G10H1/18
Filed: 1989-03-22
Granted: 1992-05-25
Abstract: 내용 없음.
Patent KR-0134194-B1 (KR)
Inventor: SONG WON R
IPC: C10M171/00
Filed: 1989-08-01
Granted: 1998-04-18
Abstract: 내용없음.
Patent KR-970011333-B1 (KR)
Inventor: SHIRO TAKAHASHI
IPC: C02F11/12
Filed: 1989-10-06
Granted: 1997-07-09
Abstract: 요약없음
Patent KR-0121457-B1 (KR)
Title: Investment casting technique for the formation of metal matrix composite bodies
Inventor: BURKE JOHN THOMAS
IPC: B22F3/26
Filed: 1989-10-10
Granted: 1997-12-03
Abstract: The present invention relates to a novel method for forming metal matrix composite bodies and the novel products produced therefrom. A negative shape or cavity, which is complementary to the desired metal matrix composite body to be produced, is first formed. The formed cavity is thereafter filled with a permeable mass of filler material (7). Molten matrix metal (8) is then induced to spontaneously infiltrate the filled cavity. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are also in communication with the filler material (7), at least at some point during the process, which permits the matrix metal (8) when made molten, to spontaneously infiltrate the permeable mass of filler material (7), which at some point during the processing, may become self-supporting. In a preferred embodiment, cavities can be produced by a process which is similar to the so-called lost-wax process.
Patent KR-960010096-B1 (KR)
Title: Coating glass
Inventor: GRUNDY BARRY THOMAS
IPC: C23C16/44
Filed: 1989-10-14
Granted: 1996-07-25
Abstract: An apparatus 1 for depositing onto the surface of a moving ribbon of hot glass 12 a coating formed from the reaction of at least two gaseous reactants. The apparatus includes an open-faced coating chamber 10 in which the gaseous reactants are caused to flow in contact with the glass surface to be coated in a direction substantially parallel to the direction of movement of the glass so as to form the desired coating on the glass surface. The coating chamber opens downwardly onto, and extends across the width of, the glass surface to be coated, and has a first inlet means 14 for providing a flow of a first gaseous reactant over the glass surface through the chamber over the width thereof, and a second inlet means 15 constituted by an inlet channel 15 which extends across the ceiling 9 of the chamber over the width of the chamber for introducing a second gaseous reactant to the flow of the first gaseous reactant in the coating chamber 1. The ceiling of the coating chamber has a stepped configuration at the juncture of the said inlet channel and the coating chamber, so that the ceiling of the coating chamber on the upstream side of the inlet channel is at a higher level than the ceiling of the coating chamber on the downstream side of the said inlet channel. A first gas distributor 19 conveys the first gaseous reactant from a gas supply duct to said first inlet means, and a second gas distributor 24 conveys the second gaseous reactant from a second gas supply duct to said second inlet means. Exhaust means 26 are located downstream of the first and second inlet means leading from the coating chamber for removal of spent gases from the coating chamber.