baber/WOPTO huggingface dataset:
Patent GB-204232-A (GB)
Title: Improved method of and means for automatically regulating the pressure of gas mains
IPC: G05D16/20
Filed: 1922-11-04
Abstract: 204,232. Widlake, H. C. Nov. 4, 1922. Regulating and controlling.-The pressure at a distant point in a gas supply system is regulated by varying the load on a governor controlling the speed of the motor or engine driving the fan of the pressure augmenting plant, under the control of an electric indicator at the station arranged to indicate and if desired record the pressure at the distant point. In the event of the pressure at the distant point falling the pointer of the indicator, which may be of the type described in Specification 157,009, [Class 106 (ii), Dynamometers], completes a local circuit through a relay D. This relay completes a second circuit through an electromagnet F which opens a valve J and permits water to flow from a cistern G into the loading tank C of the governor B which has a slight leak. Any number of relays may be used or the solenoid may be included directly in the circuit with the battery 3.
Patent GB-228664-A (GB)
Title: Improvements in or relating to stoppers for liquid-receptacles
IPC: B65D47/12
Filed: 1923-12-01
Abstract: 228,664. Taylor, E. Dec. 1, 1923. Fitted with measures for separate use. - A sheet-metal receptacle formed with a screwthreaded discharge neck d is provided with a cup stopper f formed out of a single piece of sheet-metal and provided with screw threading, the stopper being adapted to be screwed into the neck d so that its bottom may contact with an annular ledge c<1> to seal the discharge aperture c.
Patent GB-1197184-A (GB)
Title: Computing Apparatus
Inventor: CARD GEOFFREY ALEXANDER
IPC: G01L3/24
Filed: 1966-07-06
Abstract: 1,197,184. Measuring power of a hydraulic motor electrically. DOWTY ELECTRICS Ltd. Sept. 18, 1967 [July 6, 19661, No.30308/66. Heading G1N. [Also in Division G3] The power of a fixed displacement hydraulic motor is measured by feeding a current generated by a tachogenerator coupled to the motor shaft to a resistance whose value varies with the pressure difference between the fluid inlet and outlet of the motor, and measuring the voltage across the resistance. The resistance is a mechanically variable resistor, or strain gauges, connected in a temperature compensated bridge network. The voltage output from the bridge may be used to control the fluid input pressure via a variable displacement hydraulic pump to keep the power constant. For a variable displacement hydraulic motor, a further variable resistor is connected in parallel with the above resistor, whose value is adjusted in dependence on the displacement of the motor.
Patent GB-386738-A (GB)
Title: Improvements relating to oil burning installations
IPC: F23D5/18
Filed: 1931-11-02
Abstract: 386,738. Liquid-fuel burners. HILKEN, A., 37, Rue Liotard, and ATELIERS H. CUENOD SOC. ANON., ChÔtelaine, both in Geneva, Switzerland. Nov. 2, 1931, No. 30339. Convention date, Oct. 9. [Class 75 (i).] In an electrically controlled oil burning installation for heating rooms the closure of a thermostatic switch 7 by the room temperature completes a circuit through the arm 9 of a thermal switch 8 and a double mercury tube switch 20 to the armature winding 1 of an electric motor driving the fuel pump 2 and to the primary circuit of a transformer 23 heating to incandescence an ignition spiral 24. The pump 2 supplies fuel through a pipe 4 to the burner and through a pipe 14 to a receptacle 13 which is provided with an escape orifice 15. The orifice 15 is closed by a valve 16 operated against the resistance of a spring 17 by an electromagnet 18 energized on the switch 7 being closed. The rising fuel level in the receptacle 13 operates a float 19 to rock the switch 20. If ignition of the burner has not been effected the circuits to the motor winding 1 and ignition transformer 23 are thereby broken, but if ignition has previously occurred the heat of the flue gases moves the arm 9 from the contact 10 to the contact 11 and maintains the circuit to the motor winding 1. On the room reaching the desired temperature, the switch 7 is opened and breaks the circuit to the motor winding 1 and the electromagnet 18. A thermostatic switch 12 opening if the boiler becomes overheated is arranged in series with the switch 7.
Patent GB-941838-A (GB)
Title: Diazotype copying material
IPC: G03C1/54
Filed: 1960-09-05
Abstract: 941,838. Diazotype photocopying material and processes. KALLE A. G. Sept. 5,1960 [Sept. 10, 1959], No. 30555/60. Heading G2C. Material highly suitable for use as an intermediate original for the production of further diazotype copies comprises a transparent support having a coating comprising a 1-diazo-2. 5- dialkoxy-4-morpholino-benzene and a watersoluble alkyl phenol as coupling component; and the process includes use of a similar material with the diazo compound only, for processing with the coupler in a developer. Two examples specify solutions for the purposes fully, the first using 1-diazo-2. 5-dimethoxy-4-morpholino-benzene with 2, 5-dimethyl-4-morpholino-methyl-phenol as the main ingredients for coating on a transparent support and subsequent ammonia development,and the second 1-diazo-2.5-diethoxy-4- morpholino-benzene zinc chloride double salt for sensitising and 1 -hydroxy-2.5-dimethyl benzene in solution for semi-wet development. Other sensitisers are indicated and many other couplers listed.
Patent GB-414399-A (GB)
Title: Improvements in and relating to helicopter or rotative wing aircraft
IPC: B64C27/10
Filed: 1932-10-31
Abstract: 414,399. Helicopters. BECHERT, P., Saaz, Czecho-Slovakia, and SCHMIDT, R., Sch÷nb³hel, near Melk, Lower Austria. Oct. 31, 1932, No. 30584. [Class 4.] A helicopter is supported by two oppositely rotating wing systems I, II so shaped and driven that they impart the same downward velocity to the air over the entire disc area swept by the blades. This enables a good lift drag ratio, preferably greater than 10, to be maintained throughout. The product of the lift of each blade and the distance of its centre of pressure from its axis of rotation is the same for both rotors as also is the product of the resistance and the distance of the centre of resistance from the axis. The inner ends of the blades of both rotors may be of Gottingen 593 profile and their outer ends of Gottingen 595 profile, the blades being linearly graduated throughout their length. The blades also are so shaped that their centres of lift come as near as possible to the gap between the two rotors. A second machine F<a> provided with a propeller P may manoeuvre above a main machine F to which it is connected by a cable 11<a> which may carry current for the motor ; the main machine being anchored to the ground by cables 11. The two wings systems may be driven by the rotor 5 and stator 2 of an electromotor through concentric shafts 7, 4, which may be telescopic, and clutches 6, 3. The rotating wing systems may be in the same or different planes and may slightly overlap.
Patent GB-652740-A (GB)
Title: Process for the preparation of vinyl chloride
IPC: C07C17/08
Filed: 1947-11-18
Abstract: Vinyl chloride is obtained by conducting acetylene and gaseous hydrogen chloride at a temperature of 95-105 DEG  C. over a catalyst containing mercuric chloride and an oxide of a metal of the fourth group of the periodic system which is stable in the presence of hydrogen chloride at the reaction temperature.  The term metal of the fourth group of the periodic system does not include silicon. Specified catalysts are mercuric chloride and titanium oxide or thorium oxide.  The catalyst may comprise a granulated porous material first impregnated with a solution of mercuric chloride and then coated with the oxide, e.g. in a finely-pulverized form, thus pellets or granules of the impregnated porous material may be dusted with the finely-pulverized oxide.  The granulated porous material may be impregnated with mercuric chloride from its solution in water or in an organic solvent.  In an example, a methanol solution of mercuric chloride is absorbed into dry activated carbon and the mass agitated with finely-powdered thorium oxide or titanium oxide.  The catalyst is then heated to 100 DEG  to 105 DEG  C. in the synthesis apparatus and acetylene and gaseous hydrogen chloride introduced, vinyl chloride being produced.ALSO:A catalyst used for the production of vinyl chloride from acetylene and hydrogen chloride (see Group IV (b)) comprises mercuric chloride and an oxide of a metal of the fourth group of the periodic system (excluding silicon).  The catalyst may be prepared by impregnating porous material, which may be in the form of pellets or granules, with mercuric chloride and then applying the oxide, e.g. by dusting the impregnated material with the finely pulverized oxide.  The impregnation with mercuric chloride may be effected by using the latter in aqueous solution or in solution in an organic solvent.  In an example, a methanol solution containing mercuric chloride is absorbed into dry p activated carbon and the mass agitated with finely powdered thorium or titanium oxide, the catalyst being then placed in the vinyl chloride synthesiser and heated to 100-105 DEG  C. before use.
Patent GB-1489716-A (GB)
Title: N-methylol-chloroacetamide
IPC: C07C231/00
Filed: 1976-07-22
Abstract: 1489716 Concentrated N-methylol-chloroacetamide solutions BAYER AG 22 July 1976  [23 July 1975 9 March 1976] 30608/76 Heading C2C Solutions containing up to 45 wt. per cent of N - methylol - chloroacetamide are prepared by treating a solution containing 20-85 wt. per cent of chloroacetic acid methyl ester in isopropanol, with NH 3  at -20 to +10 C., adding water and basic catalyst, and reacting the resulting mixture with H.CHO at 60- 120 C. The concentration of the chloroacetic acid ester is usually 50-60 wt. per cent and the molar ratio of NH 3  : ester is 1-1À1 : 1 and of HCHO : ester 1-1À5 : 1. Preferably 40-50 wt. per cent of water is used relative to the ester and 2-5 wt. per cent of catalyst. The NH 3  treatment is usually conducted at 0-5 C. and the HCHO treatment at 80-90 C., e.g. using paraformaldehyde. In the example a solution containing 40 wt. per cent N-methylolchloroacetamide is produced.
Patent GB-394867-A (GB)
Title: Process of and apparatus for the conversion of hydrocarbon oils
Filed: 1932-11-01
Abstract: The residues from the reaction drum 17 of a tube and reaction drum cracking plant 8, 17 are immediately discharged through a line 27 into a coil 34 where they are heated rapidly to prevent deposition of coke and then introduced into coking chambers 32, 32<1>, preferably used alternately and maintained at reduced pressure relative to the pressure maintained in the cracking drum 17.  Liquid residues or mixed vapours and liquids may be fed through the line 27.  The vapours produced in the drums 17, 32, 32<1> are fed through pipes 18, 45, 45<1>, 47, 49 to dephlegmators 11, 13 either separately or together, and the vapours passing from the dephlegmators are condensed in condensers 74, 59 and separated from gases in receivers 62, 77 while the reflux from the dephlegmators is returned to the cracking coil 8 through lines 54, 50, crude oil is fed by a pump 3 either direct to the coil 8 or through lines 9, 21 to the dephlegmators.  The reflux from the dephlegmator 13 may be directed to the dephlegmator 11 through a line 23, steam or water may be intro <PICT:0394867/III/1> duced through lines 43, 43<1> after the coking reaction is completed.  Temperatures of 470-525 DEG  C. and pressures of 7-35 atmospheres are employed in the coil 8, while the coil 34 is heated to 484-540 DEG  C. under pressures of 7-20 atmospheres, the coking chambers being maintained at from 7 atmospheres to atmospheric pressure.
Patent GB-998790-A (GB)
Title: Improvements relating to electric cables
Inventor: STICKLAND FREDERICK GEORGE WIL
IPC: H01B9/02
Filed: 1963-08-02
Abstract: 998,790. Electric cables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 3, 1964 [Aug. 2, 1963], No. 30777/63. Heading H1A. A high voltage cable 1 has a layer 3 of resilient conductive material between its core 2 and insulation 4. This layer is smooth outside, but the inside in contact with the core is formed with protuberances such as ribs, corrugations or pimples which facilitate compression when the insulation is wound on. The layer may be made of rubber-like or thermoplastics material loaded with carbon black or metal powder and may be applied as a helical wrapping, or a longitudinally folded tape with a small gap between the edges or be extruded upon the core. In the latter case the layer may have slits to allow the passage of impregnating fluid. The insulation of the cable may be impregnated paper or synthetic film.
Patent GB-1353400-A (GB)
Title: Gas turbine plant
IPC: F01D5/08
Filed: 1971-07-01
Abstract: 1353400 Gas turbine plant GUTEHOFFNUNGSHUTTE STERKRADE A G 1 July 1971 [3 July 1970] 30802/71 Heading F1G A gas turbine engine comprises a series of contrarotating rotor discs 1 each of which comprises an inner series of compressor blades 3 and an outer series of turbine blades 4 separated by partitions 5; the rotors 1 are rotatably mounted on a fixed shaft 2. The engine comprises also a series of rotor discs 6 which are secured to a rotatable power output shaft 7, series of turbine blades 8 being mounted on the discs 6 by means of rods 9 which are disposed in the air passage leading from the compressor 3 to the combustion chamber 10 but exert no influence on the air flow. Gases pass from the combustion chamber to the H. P. turbine 8 thus driving the output shaft 7, then to the L. P. turbine 4 thus driving the compressor 3. The air inlet is shown at 11 and the exhaust gas outlet at 12. Opening (13) are formed in the partitions 5 whereby air may pass from the pressure side of the compressor blades 3 into the hollow turbine blades 4 for cooling thereof. The rods 9 are hollow.
Patent GB-1094439-A (GB)
Title: Glass fibre reinforced thermoplastics
IPC: C08K7/14
Filed: 1966-07-08
Abstract: A glass reinforced composition comprises 1-90% of glass fibres and 99-10% of a solid propylene polymer at least 0.2% of which has been chemically modified by reaction with an ethylenically unsaturated compound which is a dicarboxylic acid, anhydride or amide or esters thereof wherein the alcohol moiety of the ester contains 1-18 carbon atoms and which has its unsaturation in the alpha position.  The propylene polymer may be an amorphous, crystalline or atactic polypropylene or copolymer of propylene with ethylene.  The ethylenically unsaturated compound may be maleic anhydride or itaconic acid.  The glass fibre may be in woven fabric form and may be immersed in a solution of the modified polypropylene in a petroleum fraction.
Patent GB-1469792-A (GB)
Title: Plant for the recovery of blood from animals at slaughter
IPC: A22B5/04
Filed: 1974-07-11
Abstract: 1469792 Slaughtering animals PAG EKDAHL 11 July 1974 [17 July 1973] 30843/74 Heading AIM Blood is extracted from animals at slaughter by a knife 1 formed with a blood-receiving tube connected to a container 2 which is maintained under vacuum. When sufficient blood has collected in the container 2 a float controlled switch 13 starts a membrane-type pump 4 which pumps the blood from the container to a heat exchanger 5. A metering apparatus A supplies anticoagulant to the knife through a pipe 10. On actuation of a valve 12 by an operator a metering pump 11  makes a working stroke and supplies a predetermined volume of anticoagulant. Actuation of the valve 12 also causes a valve 15 to open, permitting flow of blood to the container 2. The knife is retained in an animal by a suction cup connected to a source of vacuum. A number of knives may be provided connected to a common vacuum container 2 under the control of respective valves opened by the associated metering apparatus.
Patent GB-1011020-A (GB)
Title: Improvements in the wet treatment of webs
IPC: D06B1/02
Filed: 1962-08-13
Abstract: 1,011,020. Wet treating webs. BENTELER INTERTEX ORGANIZATION A. G. Aug. 13, 1962 [Aug. 12, 1961], No. 31028/62. Heading D1L. In apparatus for the wet treatment of a web 3 the web is led about upper and lower guide rollers 2 and 2<SP>1</SP> above the surface 1 of the liquor, nozzles 6 being so arranged that they spray liquor oppositely to the direction of movement of the web in a sheet extending across the web and impinging substantially tangentially on to the web as it passes over a guide roller. In the form shown two nozzles 6 formed by slits in a casing 5 are provided not more than 15 mms away from each of any or all rollers and are directed so that the liquor impinges on the web in a direction opposite to its motion. Liquor from the jet 9 flows back along the web until it meets the jet 8 where it creates a swirling motion. The liquor is supplied to the casing 5 through a supply conduit 7 about which the casing is rotatable to give access to the associated roller and nozzles. Rotating, non-circular members 10 vibrate the web between rollers. In Fig. 1 a roller 2 is shown frictionally driven by and cooperating with one of the upper rollers 2, the two rollers forming a nip for squeezing liquor from the web and the spent liquor running into a trough 18 over deflecting plates 18 to be purified and reused; in alternative forms all the upper rollers and/or all the lower rollers are provided with co-operating rollers similar to roller 2a. A slide member having splayed legs may be fitted in each nozzle 6 and be manually reciprocated therealong by means of a detachable rod to clean the nozzles.
Patent GB-477065-A (GB)
Title: Improvements in or relating to a method of forming a metallic body, and to a combined broadside and rough sheet rolling mill
IPC: B21B1/04
Filed: 1936-11-13
Abstract: 477,065. Rolling. STEVENS, A. H. (United Engineering & Foundry, Co.) Nov. 13, 1936, No. 31048. [Class 83 (iv)] A blank, ingot, or a slab cut from an ingot is first rolled broadside to increase its width to approximately that of a required sheet (more than 65") after which it is turned round through 90‹ and rolled lengthwise to the desired thickness, e.g. for coiling at 17 while confining the edges (by rolls) to the desired width. The taper may be first taken out of the ingot by a preliminary longitudinal rolling. The sheet or coil may be finished in a hot or cold tandem mill. The apparatus comprises ingot heating furnaces 14 with pushers 15 delivering an ingot to a roller table 11 which carries it broadside past two rackoperated pushers 30 delivering it broadside to the rolls 21. The ingot is passed back and forth broadside through this reversing mill (the edging rolls 40 being screwed out of active position) until it is extended to the required width. It is then turned through 90‹ by one of the turntables 80 and repeatedly passed through the same mill 21, the edging rolls 40 at both ends of the mill being screwed in to confine the blank to the required width, and the rolls 21 being screwed down after each pass to give the required thickness. Thereafter it may pass to a coiler 17 or direct to a hot or cold tandem sheet finishing mill. The blank is also supported by rollers 70 spaced between the edging rolls 40, the rollers 70 being capable of sliding in as the rolls 40 are moved in by the separately power-driven worm screws 55. The edging rolls 40 are mounted on stub shafts 43 and drive through gearing 45, 51 all of which slide with the rolls during adjusting.
Patent GB-1063814-A (GB)
Title: Improvements in or relating to lawn mowers driven by an electric motor
IPC: A01D69/02
Filed: 1964-08-04
Abstract: 1,063,814. Mowing machines. WOLF-GERATE G.m.b.H. Aug. 4, 1964 [July 29, 1963; Feb. 13, 1964], No. 31089/64. Heading A1F. [Also in Division H2] A mower comprises an elecric motor 10 controlled by a switch 14, 52 and protected by an automatic overload circuit breaker 53 and is characterized in that a linkage for operating the switch is used to act on an operating member 59 of the circuit breaker to reset the latter when the linkage is operated to open the contacts of the switch. As shown in Fig. 1 a disc brake 19 is provided and the brake pad is mounted on a lever 18 which actuates the switch 14 manually by means of a rope 26. An extension of the arm 18 serves to actuate the member of the circuit breaker. As shown in Fig. 7 the brake is omitted and a lever 54 is operated by a rope 5 to close the switch 52 and the lever 54 is urged by a spring 62 to operate the member 59.
Patent GB-957854-A (GB)
Title: Mist removing device and method of making it
Inventor: BUB ROBERT ALGOT
IPC: B01D46/00
Filed: 1962-08-14
Abstract: 957,854. Separating liquid particles from gases. MINE SAFETY APPLIANCES CO. Aug. 14, 1962, No. 31138/62. Heading B1T. Apparatus for removing mist from a gas stream comprises a plurality of side by side contacting sections 3, 4, Fig. 3, each comprising alternate flat and channel-forming corrugated strips 1, 2 of absorbent material, e.g. asbestos, the alternate sections being inverted so as to be 180 degrees out of phase in relation to an adjacent section and the thickness of the strips 1, 2 differing slightly resulting in the flat strips 1 of any one section being staggered in relation to those of an adjacent section and the outer ends of the channels of the end sections being closed and the gas being compelled to flow through the apparatus in a direction transverse to said channels in a plurality of tortuous passages formed by said staggered strips and extending across the side edges of the flat and corrugated strips inside the apparatus. As shown, the sides as well as the ends of the apparatus are closed by a frame 5 leaving the upper and lower faces open. In a modification the apparatus is of circular cross-section. In a further modification the upper and lower faces together with the end faces are closed leaving the sides open and in a further modification the ends only are covered by caps 15, 16, Fig. 6, and the cylindrical side is supported by a foraminous screen 14.
Patent GB-838775-A (GB)
Title: Improvements relating to electrically heated cooking appliances
Inventor: PANISSET DENIS SYDNEY
IPC: H05B3/68
Filed: 1955-04-23
Abstract: 838,775. Electric grills and hot plates. SIMPLEX ELECTRIC CO. Ltd. April 23, 1956 [April 23, 1955], No. 31153/59. Divided out of 838,774. Addition to 785,292. Class 39(3) In a cooking appliance involving downward heat radiation, e:g. for grilling or toasting and having open wire heating resistors 32 having resistances substantially uniform along their lengths and occupying a generally flat and rectangular plate-like zone as a grid separated from a lower cooking space by a wire frame guard 14 permeable to radiant heat, the open wire heaters 32 are distributed so that the corners contain a greater length of wire relatively to their areas than the sides between them. The heating wire is a helical coil or is uncoiled, and the extra length in the corners is obtained either by forming the wire into unclosed loops 31 open to the centre of the heater or by forming it in the corners as a coiled coil. The wire is of nickel chromium and is wound on a mandrel having a diameter equal to that of the wire so that when relaxed. the outer diameter of the helix is 3-5 times the diameter of the wire; and the secondary helix is formed by winding the primary helix on a mandrel having a diameter equal to that of the primary helix. The runs of wire 32 between the corner loops may be V-shaped as shown, or may be of rectilinear curved or zig-zag form. An outer run of heating wire 30 may be disposed as a rectangle adjacent the margin of the rectangle. The wire is supported at intervals by passing through apertures in porcelain discs 40 attached to the wire guard 40 on a flanged metal plate 11, which may form a hot-plate, as described in Specification 838,774.