baber/WOPTO huggingface dataset:
Patent GB-1097862-A (GB)
Title: Improvements in or relating to razor blades
Inventor: HANSOM BERNARD STEPHEN
IPC: C22C38/58
Filed: 1963-10-03
Abstract: A razor blade is made by hardening a Ni-Cr austenitic steel to a hardness of greater than 500 VPN and forming or finishing the cutting edge by an electrolytic process.  The steel preferably has the following percentage composition:-  <TABS:1097862/C6-C7/1> and may be hardened mechanically at 200 DEG C. to 100 DEG C.  To increase the hardness further heating may be effected at 350-460 DEG C.  The electrolytic formation or finishing of the cutting edge may be performed as described in Specification 1,096,411. The blade may be subsequently coated as described in Specification 1,050,241.
Patent GB-833685-A (GB)
Title: Improvements in or relating to labelling machines
Inventor: FAIREST DEREK HOWARD
IPC: B65C9/02
Filed: 1956-12-21
Abstract: 833,685. Labelling machines. FAIREST Ltd., M. Dec. 20, 1957 [Dec. 21, 1956], No. 38933/56. Class 73 A labelling machine for applying labels to flat-faced bottles has a label delivery suction drum 6, Fig. 2, and a pressure drum 16 rotatably mounted on opposite sides of the bottle conveyer 10 to form a nip through which each bottle is passed, the peripheral speeds of the two drums being equal to the conveyer speed so that a label is rolled on to one flat face of each bottle, the machine being also provided with means for applying labels to an opposite or another flat face of each bottle. The conveyer may pass two labelling stations in turn, one labelling one flat face and the other labelling another flat face. The two labelling stations may lie at opposite sides of the conveyer or, as shown in Fig. 2, they may lie at the same side with turning mechanism 19 between the stations to rotate a bottle already labelled on one face at one station into position to be labelled on another face at the next station. This rotation, which may be effected by a rotary star wheel or pocket, may be through 180 degrees for labelling opposite faces of the bottle or through a lesser angle, e.g. 90 degrees in the case of labelling adjacent faces of rectangular or square section bottles 201, as shown in Fig. 17. As shown in Figs. 2 and 17 the two labelling stations are identical and a marking device 30, e.g. as described in Specification 809,463, is provided for applying a date and other mark to the ungummed portion of each label carried by the drum 6A. Moving bands 28, 29, Fig. 2, firmly press both labels to each bottle. Gummed labels are fed to the drums 6, 6A by the mechanism described in Specification 777,133. According to the Provisional Specification the pressure drum may itself be constituted by a second suction delivery drum so that labels are simultaneously applied on opposite faces of the bottles.
Patent GB-1059107-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D409/04
Filed: 1963-10-04
Abstract: The invention comprises (a) compounds of the general formula (I) <FORM:1059107/C2/1> (wherein X and Y are the same or different and each represents a hydrogen, chlorine or bromine atom or a nitro, C1- 9 haloalkyl (e.g. trifluoromethyl) or C1- 9 alkylsulphonyl group, R and R1 are the same or different and each represents a monocarboxylic acyl radical, and Ar represents a thienyl group or a phenyl group optionally substituted by chlorine, fluorine, C1- 9 alkyl, C1- 9 alkoxy or C1- 9 haloalkyl), (b) the preparation of 5-monocyclic aryl-1-monocarboxylic acyl-3-monocarboxylic acyloxy-1,3 - dihydro - 2H - 1,4 - benzodiazepin - 2 - ones by heating a 5-monocyclic aryl-1,3-dihydro - 2H - 1,4 - benzodiazepin - 2 - one 4-oxide with a monocarboxylic acid anhydride at a temperature of at least 50 DEG C., (c) the preparation of compounds (I) by heating a compound of the formula <FORM:1059107/C2/2> (wherein R2 represents a hydrogen atom or R1) with a monocarboxylic acid anhydride at a temperature of at least 50 DEG  C., (d) the preparation of compounds of the general formula in (c) by reacting a compound (I) with a primary or secondary amine or with hydrochloric or hydrobromic acid, and (e) the preparation of compounds of the general formula <FORM:1059107/C2/3> by reacting the product of process (d) with a dilute alkali metal hydroxide solution. The term "aryl" is used in the broad sense of an aromatic group, and includes heteroaryl and substituted aryl groups.  Compounds (I) are anticonvulsants and muscle-relaxants, some are sedatives and some are tranquillizers without being sedatives. They may be administered orally or parenterally in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-1118334-A (GB)
Title: Improvements relating to x-ray sensitive luminescent materials
IPC: H01J29/20
Filed: 1966-09-02
Abstract: An X-ray sensitive luminescent material consists of terbium-activated lanthanum oxide, phosphate or silicate, wherein the luminescent material contains from 0.01 to 0.15, preferably 0.06 to 0.09 grm. atoms of terbium per grm. mol. of lanthanum compound.  The material may be used in X-ray image intensifiers and in television transmission systems in conjunction with photocathodes. In examples of preparation the starting materials including La2O3, (NH4)2 HPO4, Tb4O7, La2O3, LaF3 and SiO2 are heated in air for 2 hours at temperatures from 600 DEG  to 1200 DEG  C., the reaction product pulverized and heated again in air for 2 hours at temperatures from 1150 DEG  to 1400 DEG  C.  The product has a green emission with a sharp peak at 545 nm.
Patent GB-1434561-A (GB)
Title: Dual range pressure dependent variable flow fluid delivery system
IPC: F15B11/05
Filed: 1973-08-21
Abstract: 1434561 Fluid-pressure servomotor systems CATERPILLAR TRACTOR CO 21 Aug 1973 [25 Aug 1972] 39643/73 Heading G3P A pump whose displacement is varied by an actuator to provide proportionality between output flow and pressure over portions of two distinct pressure ranges includes valve means responsive to output pressure and acting on the actuator to effect a changeover from one range to the other. The pump comprises a shaft 14 driving cylinders 15 containing reciprocal pistons 16 bearing on swash-plate 19 whose inclination can be adjusted by actuator system 11. The pump outlet 20 is connected by pipe 21 to a series of valves 23 each controlling flow via shuttle valve 35 to one or other side of jack 39. Output pressure is communicated via ducts 44, 45 to cartridges 12, 13 respectively of the actuator system 11. The pistons 50, 50a of cartridge 13 act as a pressure reducing valve to maintain a fixed fraction of output pressure in spring cavity 51, which fraction is communicated via duct 53 to chamber 54 of cartridge 12. Any increase in the output pressure above about 1700 psi will move servo spool 49 rightwards against the bias of spring 48 thus venting the chamber adjacent piston 47 to reservoir 25 via path 56. The output pressure acting on piston 46 of cartridge 13 thus moves the piston leftwards forcing swash-plate 19 from a maximum into a reduced displacement position. Follow-up is provided by piston rod 47a moving sleeve 49a rightwards against the bias of spring 48a. Assuming that the spool 57 of at least one of the valves 23 has been shifted to pressurize one or other of the pipes 31, 32 leading from ports 30 via shuttle valve 35 to jack 39 and the load on the latter demands a pump output pressure in excess of about 2050 psi, then the pressure range changeover takes place. This is achieved by communicating pressure from the pressurized port 30 through passage 62 having a check valve 63, through a chamber 64 containing the biasing spring 60 of spool 58 and thence past check valve 66 into pipe 67, to changeover valve 65 to act on the base of spool 68. The latter is thus forced upwardly against the bias of spring 69 causing the pressure in pump duct 53 to be communicated via pipes 70, 72 to the end of a plunger 71 to increase the biasing force acting on servo-spool. 49. The pump displacement control will now operate in the manner previously described but in a pressure range of between 2050 and 3650 psi when the jack load so requires. A relief valve 27 in delivery pipe 21 opens when the pressure exceeds 3650 psi.
Patent GB-1399101-A (GB)
Title: Arc welding apparatus
IPC: B23K9/09
Filed: 1971-08-24
Abstract: 1399101 Supply systems for arc welding WELDING INSTITUTE 22 Aug 1972 [24 Aug 1971] 39695/71 Heading H2H A supply system for arc welding apparatus comprises a first D.C. power supply circuit 18 which provides current for maintaining an arc between a consumable electrode 10 and a workpiece 14, a detector circuit 36, and a second D.C. power supply circuit 16, the detector circuit being operative in response to signals derived from the welding circuit due to the onset of a short circuit condition and an adjustable delay device in the detector circuit for connecting the second power supply circuit to the welding circuit after a predetermined period in order to apply an increased current to the welding circuit. A control circuit 88, via which the arc maintaining current is supplied from the circuit 18 is controlled by detectors 92, 96 and gates 90, 94, the detector 92 including an integrator which switches off transistors in the gates 90 when the integrator output exceeds a reference value and the detector 96 switching off a transistor in the gate 94 to switch off the circuit 88 at the beginning of a short circuit period. At this instant, the abrupt reduction in the arc voltage is detected by a differentiating circuit in the detector 36 and after a delay determined by the delay device (40), Fig. 4 (not shown), a transistor in the gate 34 is switched on. A detector circuit 32 converts the duration of the arc current, i.e. the time elapsed since the previous short circuit, into a digital signal by counting clock pulses and provides an output which switches on a number of transistors in gates 30, the number being a function of the elapsed time. The conductive transistors switch on corresponding transistors in gates 26 which in turn switch on parallel connected transistors in a control circuit 24 to supply a high amplitude current to the welding circuit. A detector circuit 28 detects an impending termination of the short circuit by detecting the pulse due to "necking" of the molten metal and switches off selected transistors in the gates 26 to reduce the short circuit current. At the end of a short circuit, the detector 36 switches off the transistor in the gate 35 and the arc current is restored by switching on the gate 94. A third power supply circuit 20 provides a low current for a pilot arc or arc stabilization. A modified detector circuit 36 is described which enables pulsing of the short circuit current.
Patent GB-861782-A (GB)
Title: Pharmaceutical compositions having muscle relaxant activity
IPC: A61K31/15
Filed: 1957-12-20
Abstract: A pharmaceutical composition having muscle relaxant activity in a form suitable for oral administration, e.g. tablet, powder or capsule, comprises at least 10 mg. of dicyclopropyl ketoxime and a solid non-toxic pharmaceutical carrier.  The carrier may form the container for the dicyclopropyl ketoxime as in the case of gelatin in a gelatin capsule.  The solid composition may contain binding agents, diluents and tabletting adjuvants, e.g. corn starch, acacia, lactose, talc, stearic acid, magnesium stearate and gums. The pharmaceutical composition may take the form of a liquid comprising an aqueous liquid pharmaceutical carrier containing at least 2 mg. of dicyclopropyl ketoxime per c.c. with a minimum of 10 mg. of dicyclopropyl ketoxime and a preservative and/or flavouring agent or agents, and/or one or more non-toxic suspending agents, e.g. acacia, carboxymethylcellulose, sodium carboxymethylcellulose, sucrose, glucose, glycerin, and esters of p-hydroxybenzoic acid.  The liquid composition may comprise a sterile aqueous liquid pharmaceutical carrier and be suitable for injection.
Patent GB-1272454-A (GB)
Title: Oral preparations
IPC: A61K8/73
Filed: 1969-08-08
Abstract: 1,272,454. Oral preparations containing dextranase. COLGATE PALMOLIVE CO. 8 Aug., 1969 [9 Aug., 1968], No. 39738/69. Heading A5B. Oral preparations, such as dentifrices and mouthwashes in the form of creams and gels respectively, comprise a non-toxic liquid vehicle, dextranase and, as a binder, Irish moss and/or gum tragacanth. The preparations may also comprise water-insoluble polishing agents, preferably water-insoluble sodium metaphosphate and/or a fluorine-providing compound such as stannous fluoride or sodium monofluorophosphate. The preparations may also contain conventional humectants; flavouring agents; sweeteners; anionic, nonionic, ampholytic or cationic surface active agents; antibacterials; colouring or whitening agents; preservatives; silicones; chlorophyll compounds; and ammoniated materials such as urea and diammonium phosphate.
Patent GB-1351786-A (GB)
Title: Desulphurisation of hydrocarbons
IPC: C10G25/00
Filed: 1971-08-25
Abstract: 1351786 Desulphurizing natural gas AQUITAINECHIMIE 25 Aug 1971 [8 Sept 1970] 39929/71 Heading C5E Liquid or gaseous hydrocarbons, e.g. natural gas, are desulphurized by contacting them with a porous mineral impregnated with divalent copper oxide deposited from an aqueous solution of an ammonia copper complex. The contacting takes place at room temperature and preferably under a pressure of from 2 to 100 bars. The mineral may be silica, silico-aluminate, pumice, kieselguhr, montmorillonite, kaolin, Florida fuller's earth, attapulgite or infusorial earth, and in a specific example is activated trihydrated alumina.
Patent GB-1100171-A (GB)
Title: Improvements relating to earth line continuity testers
Inventor: LOBELLE MARCEL JULES ODILON
IPC: G01R27/18
Filed: 1965-09-20
Abstract: 1,100,171. Protective arrangements. M. L. AVIATION CO. Ltd. 19 Dec., 1966 [20 Sept., 1965], No.40004/65. Heading H2K. An arrangement for indicating a safe earth connection for a portable appliance 1 comprises a capacitor 12 which is charged from a line terminal 7 and discharges to an earth terminal 9 through a voltage-sensitive device 13 so that an indicator is operated by the resulting current pulses when the impedance to earth is below a safe value. The capacitor 12 is connected between line and neutral in series with a resistor 10 and a diode 11. A transformer 14 has its primary winding in series with the device 13 and its secondary winding connected to a neon lamp 15 which flashes when the earth connection is safe. The device 13 may be a Shockley diode or the combination of a silicon controlled rectifier with a Zener diode and resistor connected between the gate and positive terminal of the rectifier, Fig. 1A (not shown). The arrangement may be provided in the casing of the appliance or in an insulating housing. connected in the three-core cable for the appliance, Fig. 2 (not shown).
Patent GB-1086289-A (GB)
Title: Vehicle steering mechanism
Inventor: BRIGGS WALTER HENRY
IPC: F16H55/28
Filed: 1965-09-21
Abstract: 1,086,289. Rack-and-pinion steering gear. BURMAN & SONS Ltd. Sept. 19, 1966 [Sept. 21, 1965], No. 40118/65. Heading F2Q. In a vehicle rack-and-pinion steering gear an idler pinion 13 is interposed between a pinion 11 secured on a steering shaft 12 and a rack 10 connected to steerable road wheels, the idler 13 being freely movable transversely to the length of the rack and the rotational axis of the pinion 11 to take up wear. The idler 13 is mounted by a roller bearing 15 on a cylindrical carrier 14 having eccentric trunnions 16, either integral therewith or formed by a shaft extending through an eccentric bore in the carrier, bearing in coaxial bores 17 the axis of which is offset from a plane containing the axis of the pinion 11 and normal to the length of the rack 10. A spring-urged pad 18 urges the rack into engagement with the idler 13, which is in turn urged into engagement with the pinion 11. Alternatively the idler 13 may be mounted in slots in the housing of the gearing.
Patent GB-1454039-A (GB)
Title: Alkyl-6,7-dialkoxy-2-methyl-4-oxo-1,2,3,4-tetrahydroquinoline- 1-carboxylates
IPC: A61K31/47
Filed: 1974-09-13
Abstract: 1454039 Substituted 4-oxotetrahydroquinoline 1-carboxylates PFIZER Inc 13 Sept 1974 [26 Dec 1973] 40126/74 Heading C2C The invention comprises compounds of Formula I wherein R, R 1  and R 2  are the same or different and are C 1-4  alkyl groups which may be prepared by acylation of a compound of Formula II with an appropriate agent, e.g. alkylchloroformate. Ethyl - 3 - [3,4 - dimethoxyanilino] - 2 - butenoate is prepared by reaction of 4-animoveratrole with ethylacetoacetate and is hydrogenated to obtain ethyl - 3 - [3,4 - dimethoxyanilino]- butanoate which on treatment under reflux with methanolic aqueous sodium hydroxide is hydrolysed to 3-[3,4-dimethoxyanilino]butanoic acid which is cyclized by heating with polyphosphoric acid to obtain 6,7-dimethyoxy-2-methyl- 4-oxotetrahydroquinoline. Pharmaceutical compositions having analgesic and tranquillizing activity for oral or parenteral application comprise a compound of Formula I together with a pharmaceutically acceptable carrier.
Patent GB-935968-A (GB)
Title: Improvements in vertically adjustable chairs
Inventor: RICHARDSON RONALD WILLIAM
IPC: A47C3/24
Filed: 1961-11-10
Abstract: 935,968. Vertically adjustable chairs. A. ARENSON Ltd. Aug. 1, 1962 [Nov. 10, 1961], No. 40369/61. Class 52 (2). A vertically adjustable chair comprises a smooth bore tube-like pedestal 3, a screwthreaded pillar 2, which supports a seat 1, fitting closely with the tube 3 and a nut 6 in threaded engagement with the pillar 2 and abutting against one end of the tube 3, the nut 6 having a downwardly depending skirt 9 which encloses the upper end of the tube 3. The skirt contains an inwardly-directed shoulder 10 adapted to override a washer 5 secured to the end of the tube 3 to prevent separation of the pillar and tube once the parts are assembled. A washer 11 is also interposed between the nut 6 and washer 5, the washer 11 being formed with an inwardly directed tang 12 which enters a longitudinal groove 13 in the pillar 2. The height of the seat 1 will not change if it is rotated whilst being occupied since the frictional engagement of the washer 11 with the nut 6 ensures that the nut 6 rotates with the pillar 2.
Patent GB-1344970-A (GB)
Title: Gate valve body
IPC: F16K27/04
Filed: 1972-08-31
Abstract: 1344970 Valves WALWORTH CO 31 Aug 1972 [3 Sept 1971] 40442/71 Heading F2V A fabricated gate valve body consists of a rectangular section tube 12 with aligned openings 24 in which are welded reinforcing rings 22 interconnected by C-shaped tie plates 36 welded to the rings at 38. The tube 12 is reinforced by tack-welded hoop-like ribs 14 of which those, 14a, 14b, adjacent the rings 22 may be welded thereto at 40, 41. Thin-walled hubs 18 are welded to the rings 22 at 42. The plates 36 may be cut from a blank disc removed from the centre of a ring 22 during the manufacture thereof.
Patent GB-892692-A (GB)
Title: Gas turbine engine with fuel filter systems
IPC: F02M37/32
Filed: 1960-11-25
Abstract: 892,692. Filters in parallel; backflushing. GENERAL MOTORS CORPORATION. Nov. 25, 1960 [Nov. 27, 1959], No. 40519/60. Class 46. In the position shown, gas-turbine fuel is boosted at 16 and passing along conduit 20 is directed by valve 28 through a filter 34, and the filtered fuel is directed by valve 30 to main pump 14, whence it passes into a control unit 12. Most of the fuel passes at 10 to the engine but the excess passes along conduit 52 and is directed by valve 30 backwards through a filter 32, the resulting suspension of fuel and residue being directed by valve 28 along conduit 64 to be separated in a density centrifuge 66 and the thus-cleaned fuel being added to conduit 20 at 82. A drum cam 96 driven by the centrifuge impeller 68 through reduction gearing (ratio e.g. 1 : 10,000) periodically changes-over the valves 28, 30 simultaneously through linkage 86 to 94 so as to transpose the functions of the filters 32, 34. Alternatively the valve movement may take place in response to a predetermined pressure drop across the filter in use.
Patent GB-1474890-A (GB)
Title: Card clothed elements
IPC: D01G15/86
Filed: 1974-09-27
Abstract: 1474890 Making card clothing elements ENGLISH CARD CLOTHING CO Ltd 27 Sept 1974 [4 Oct 1973] 40540/76 Divided out of 1474888 Heading D1N A card clothing carding element is made by locating card clothing on a convex former 10 with its teeth innermost then applying a sustaining member 20 which is arcuate such that it conforms to the surface of the card clothing and securing one or more rigid supports 21 to the sustaining element and bonding the sustaining element to the card clothing before removing the carding element from the former. The former 10 may be part cylindrical or cylindrical and the card clothing wound thereon, Fig. 1 (not shown). The sustaining element may be timber and bent by steam setting or with internal or external saw cuts 22 which are at least partly filled with resin. The card clothing can be fillet or toothed wire type and may be as claimed in Specification 1474889. Specification 1474888 is referred to.
Patent GB-1338852-A (GB)
Title: Lighting fitting
IPC: F21V9/40
Filed: 1972-09-01
Abstract: 1338852 Control systems for gas discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES 1 Sept 1972 [4 Sept 1971] 40577/72 Heading H2H [Also in Division F4] A circuit for dimming one pair of low pressure mercury vapour lamps 11, 11<SP>1</SP> whilst simultaneously increasing the brightness of a second pair of similar but differently coloured lamps 12, 12<SP>1</SP>, or vice versa, so that the total luminous flux emitted by the lamps remains substantially constant and the general colour rendering index remains above 80, comprises two pairs of antiparallel thyristors 55, 56 and 55<SP>1</SP>, 56<SP>1</SP> controlling the respective pairs of lamps and drivers 58, 58<SP>1</SP> which regulate the triggering of the thyristors, the variable resistors 64, 64<SP>1</SP> which belong to the respective drivers being mechanically coupled in such a manner that one resistance value increases whilst the other decreases. Each pair of thyristors is connected to a respective pair of ballast impedances 62, 63 or 62<SP>1</SP>, 63<SP>1</SP> in series with a corresponding pair of lamps, the other ends of the lamps being connected to one terminal 51 of an A.C. mains supply. The other mains terminal 50 is connected to the thyristors via an auxiliary inductor 52 shunted by a switch 53.