baber/WOPTO huggingface dataset:
Patent GB-1446391-A (GB)
Title: Brake fluid reservoirs
IPC: B60T11/26
Filed: 1974-01-24
Abstract: 1446391 Master cylinders GENERAL MOTORS FRANCE 15 Jan 1975 [24 Jan 1974] 03275/74 Heading F2F [Also in Division G1] A brake fluid reservoir has a flexible sealing diaphragm 12 held in position against the rim 16 of the fluid chamber 8 by a cover 10 having depending from it a casing containing a pair of electrical contacts 24, 26 and having a sleevelike extension 32 in which is slidable a rod 34 with a float 36 at its lower end and at its upper end a movable contact 38 for bridging the contacts 24, 26 when the liquid level in the reservoir drops and energising a lamp or other warning device. As shown the reservoir has two chambers 2, 4 with respective outlet necks 6 for attachment to a tandem master cylinder and the respective flexible diaphragms 12 are joined by a strap portion (18) (Fig. 1, not shown).
Patent GB-701803-A (GB)
Title: Diphenyl ketones of pharmaceutical value and the preparation thereof
Inventor: WALTON ERIC
Filed: 1951-02-12
Abstract: The invention comprises the compounds 6-ethylmethylamino-5-methyl-4, 4-diphenylhexan-3-one and 6-ethylmethylamino-4, 4-diphenylheptan-3-one, and their salts. The compounds are analgesics and may be prepared by treating 3-ethylmethylamino-2-methyl-1, 1-diphenyl-propyl cyanide or 3-ethylmethylamino-1, 1-diphenylbutyl cyanide, respectively, with ethyl magnesium bromide.  In examples, ethylmethylamine is heated with propylene oxide to give 1-ethylmethylamino-2-propanol which is reacted with thionyl chloride in chloroform to yield 1-ethylmethylamino-2-chloropropane; this is then refluxed with diphenylmethyl cyanide and sodamide in benzene to produce a mixture of the isomers 3-ethylmethylamino-1, 1-diphenylbutyl cyanide and 3-ethylmethylamino-2-methyl-1, 1-diphenylpropyl cyanide.  After separation, these compounds are reacted with ethyl magnesium bromide according to the Grignard process.  The oxalate and the hydroiodide of 6-ethylmethylamino-5-methyl-4, 4-diphenylhexan-3-one, and the hydrobromide of 6-ethylmethylamino-4, 4-diphenylheptan-3-one are described.  The Provisional Specification refers to Specifications 654,975, 677,522 and 688,481.
Patent GB-670315-A (GB)
Title: Improvements in lubricating oil compositions
Filed: 1948-02-05
Abstract: An extreme pressure lubricating composition comprises a major proportion of lubricating oil, a minor proportion of a halogen- and phosphorus-bearing aliphatic compound and a minor proportion of a separate thionic material.  The thionic material is either an organic sulphur compound or elemental sulphur. Lubricating oils mentioned include mineral, animal, vegetable, synthetic, hydrogenated and voltolized oils.  Halogen- and phosphorus-bearing aliphatic compounds which may be employed include halogen- and phosphorus-bearing aliphatic hydrocarbons and halogen- and phosphorus-bearing aliphatic compounds containing oxygen in the molecule and particularly halogenated phosphorus-bearing aliphatic compounds.  Substances specifically mentioned are chlorlauryl phosphine, chlor-octyl phosphine, chlor-di-ethyl di-thiophosphine sulphide, chlor-butyl phosphate, chlor-lauryl thiophosphate, chlor-lauryl thiophosphite and chlor-aliphatic phosphites such as chloramyl phosphite and chlor-lauryl phosphite.  The organic sulphur compound employed as the thionic material may be an aliphatic material and it may be an ester. Organic sulphur compounds mentioned include sulphurized methyl linoleate, sulphurized methyl oleate, sulphurized methyl aryl-substituted linoleate, sulphurized animal and vegetable fatty oils, diphenyl sulphide, dibenzyl sulphide, di-p-tolyl sulphide, diphenyl disulphide, dibenzyl disulphide, di-p-tolyl disulphide, diphenol disulphide, diphenyl sulphone, di-p-tolyl sulphone, amyl sulphone, diphenyl sulphoxide, di-p-tolyl sulphoxide, diphenyl thio-urea, o-tolyl thio-urea, naphtha xanthate, thiocarbamylamine, butyl sulphide, butyl disulphide, amyl sulphide, amyl disulphide, p-cresyl ethyl thio ether, dithio diglycol, ethyl dithio oxalate, heptyl sulphide, thioketones, thiophenes and thiophanes. Specification 665,105 is referred to.  The Specification as open to inspection under Sect. 91, refers to a lubricating composition comprising a major proportion of lubricating oil, a minor proportion of a halogen- and phosphorus-bearing compound and a minor proportion of a thionic material.  Lists of halogen- and phosphorus-bearing compounds (including cyclic compounds) and of thionic materials are given. In examples, mineral lubricating oil compositions are described containing (1) chloroamyl phosphite and sulphurized methyl linoleate, (2) methyl phosphonic chloride and sulphurized methyl oleate, (3) o-chlorphenyl phosphine and dibenzyl disulphide, (4) o-chloro-triphenyl phosphine oxide and diphenyl sulphide, (5) phosphazo-chloro-benzene chloride and butyl disulphide, (6) sulpho-phosphazobenzene chloride and benzyl thiocyanate and (7) chloropentamethylene phenylphosphine and dibenzyl disulphide. This subject-matter does not appear in the Specification as accepted.
Patent GB-1480571-A (GB)
Title: Cooling apparatus
IPC: F25B5/04
Filed: 1976-01-29
Abstract: 1480571 Refrigerators BOSCH-SIEMENS HAUSGERATE GmbH 29 Jan 1976 [22 Feb 1975] 03506/76 Heading F4H In a refrigerator having a freezer compartment 12 and a cooling compartment 13 containing evaporators 20, 21 connected in series in a refrigeration circuit including a compressor 15, a condenser 17, a refrigerant collector 26, a desiccator cartridge 19 and a capillary choke tube 18, the freezer compartment 12 is provided with a regulator 22 which senses the temperature of the evaporator 20 by means of a sensor tube 23, and a regulator 24 associated with the cooling compartment 13 has a sensor tube 25 for sensing the temperature of the evaporator 21. The contacts of the regulator 22 are connected in series with the motor of the compressor 15 and the contacts of the regulator 24 are connected in series with heater elements 27, 28 which are arranged to heat the refrigerant collector 26 and the end of the sensor tube 23 in contact with the evaporator 20, respectively. In operation, when the freezer compartment temperature rises above a value set at the regulator 22, the contacts close to actuate the compressor, the arrangement being such that the volume of refrigerant actively participating in the cooling process is only sufficient to fill the evaporator 20, whereby only the freezer compartment is cooled. When the temperature of the cooling compartment rises above a predetermined value, the contacts of the regulator 24 close to activate the heater elements 27, 28. The actuation of heater element 27 causes refrigerant stored in the collector 26 to be expelled into the refrigerant circuit and to be urged through the evaporator 20 into the evaporator 21. The heater element 28 heats the sensor tube 23, thereby causing the regulator 22 to switch on the compressor motor. In a modification, Fig. 3 (not shown), the heater element 28 is controlled by a relay so that the element is inoperative when the compressor is operating.
Patent GB-677826-A (GB)
Title: Improvements relating to liquid fuel injection nozzles
Inventor: GODDARD LESLIE JOHN
IPC: F23D11/38
Filed: 1950-02-11
Abstract: 677,826. Spray-producers. LUCAS, Ltd., J. Feb. 2, 1951 [Feb. 11, 1950], No. 3552/50. Class 69 (iii) [Also in Group XI] A liquid fuel injection nozzle of the swirl type has a pair of coaxial liquid fuel swirl chambers and associated discharge orifices,and means for supplying at least one of the chambers with at least two independent fuel streams. A body part a provides separate fuel supply passages b, c and d formed by concentric tubular parts, and these passages lead to three series of passages m, n, and o, in a plate e. Passages m, n, and o lead to circumferentially spaced holes in plates f-j which lead to three series of passages t, w, and x. The latter are directed tangentially into the swirl chambers r and u having discharge outlets s and v respectively.
Patent GB-1399005-A (GB)
Title: Herbicidal compositions
IPC: A01N25/14
Filed: 1973-01-24
Abstract: 1399005 Wettable, granular herbicidal compositions CIBA-GEIGY AG 7 March 1973 [8 March 1972 24 Jan 1973] 10751/72 and 3607/73 Heading A5E A composition, in granular form comprising at least 50% by weight of a herbicidal material selected from (a) substantially water-insoluble herbicide or (b) a mixture of substantially water-insoluble herbicide with water-soluble herbicide, and at least 5% by weight, based on total solids, of one or more surfactants; all the granules in the composition having a mean particle size of at least 0.1 mm and an active suspensibility of at least 60%, may be obtained by a process comprising mixing a solution containing one or more surfactants with a herbicidal material, with or without carrier, in powder form to give a paste or slurry in which the. solid material is uniformly distributed in the liquid medium, optionally removing some of the solvent and then converting the residue into granular form. The granular composition is non-dusting and may be dispersed in water without pre-creaming. A carrier such as china clay, chalk or a silicate, also may be present. The surface active agent may be a mixture of a wetting agent (an alkyl phenol or fatty alcohol condensate of ethylene oxide) with a dispersing agent (a lignosulphonate or an ammonium salt of an aromatic sulphone sulphonic acid condensate with formaldehyde). Herbicides particularly specified are simazine, atrazine, terbuthylazine, terbutryne, aziprotryne, chloroxuron, fluometuron, chlortoluron, prometryne, desmetryne, ametryne, a mixture of terbuthylazine and terbutryne, a mixture of atrazine, aminotriazole and 2, 4- dichlorophenoxyacetic acid, a mixture of simazine and aminotriazole and a mixture of bromofenoxim and triazines. The compound "chlortolurom" is N-(3-chloro-4-methylphenyl)- N'-dimethylurea.
Patent GB-1521662-A (GB)
Title: Rectifier arrangement
IPC: H02K11/04
Filed: 1977-01-28
Abstract: 1521662 Rectifier assemblies ROBERT BOSCH GmbH 28 Jan 1977 [31 Jan 1976] 03640/77 Heading H1K A rectifier assembly for a three-phase generator comprises two elongate heat-sink plates 11, 13 disposed crosswise to simplify connections 19 between the positive and the negative diodes 12, 14 on the respective plates. Busbars 19 include portions 21 for connection to the phase windings. Excitation diodes 25 are mounted on a device 24 on the plate 13.
Patent GB-720690-A (GB)
Title: An improved sieve of sheet metal for blast-separation
IPC: A01F12/44
Filed: 1953-02-10
Abstract: 720,690. Sieves. GRAEPEL, F. Feb. 10, 1953 [Oct. 16, 1952], No. 3736/53. Class 117. A sieve of sheet-metal has the apertures formed with lips a, Figs. 1, 3, bent upwards, and lips c bent downwards, the lips a having channels b, Fig. 1, or e, Fig. 4. The sieve is intended to be used with an air blast passing from the lower side through to the upper side and carrying away the lighter particles and the channels b, e are stated to concentrate the blast. The heavier particles fall through the sieve. The edge of the lip c is preferably bent outwards as shown in Fig. 3.
Patent GB-1137187-A (GB)
Title: Quenching process
Inventor: MORTON RONALD WILLIAM
IPC: C21D1/58
Filed: 1966-01-27
Abstract: 1,137,187. Quenching fluid. ESSO RESEARCH & ENG. , CO. Jan. 6, 1967 [Jan. 27, 1966], No. 3746/ 66. Heading C7N. A quenching medium for metals or alloys (e.g. steels or aluminium alloys) comprises an oil (e. g. a polyglycol ether or ester but preferably a hydrocarbon oil) containing a minor proportion of a phenol-based detergent additive containing sulphur and optionally a minor proportion of an alkali metal or alkaline earth metal sulphonate and a very small amount of an anti-foaming agent (e.g. 0À005% of a silicone). The detergent additive may be made by reacting sulphur or a sulphur-containing compound (e. g. a phosphosulphurized hydrocarbon) with (1) an alkali metal or alkaline earth metal alkyl phenate or alkyl thiophenate or (2) an alkyl - phenol or an alkyl phenol sulphide and an alkali metal or alkaline earth metal base.
Patent GB-645435-A (GB)
Title: Reduction of the powders of the oxides of iron or iron alloys
IPC: B22F9/20
Filed: 1948-02-09
Abstract: Iron or iron alloy powders are produced from iron oxide or iron oxide and the oxides of the alloying metals by heating in a closed vessel the powdered oxides and powdered charcoal to a temperature below the fusion temperature, perferably between 980 DEG  and 1040 DEG C, until gases cease to be liberated, milling the product and submitting the milled powder to a second similar heating, again milling the product and annealing the reduced powder in hydrogen.  The annealed powder may be further milled to the desired fineness.  The starting mixture may comprise 87.46 per cent iron oxide and 12.54 per cent charcoal, or, in the production of an iron-tin alloy 82.97 per cent iron oxide, 4.69 per cent. tin oxide, and 12.34 per cent charcoal.  Annealing may be performed at 815 DEG -845 DEG C followed by gradual cooling to 200 DEG C. in an atmosphere of hydrogen.
Patent GB-1386621-A (GB)
Title: Railway vehicles
IPC: B61F5/24
Filed: 1972-01-26
Abstract: 1386621 Anti-hunting damping device GLOUCESTER RAILWAY CARRIAGE & WAGON CO Ltd 26 Jan 1972 3771/72 Heading B7L [Also in Division F2] A railway vehicle is provided with a frictional damping device mounted between the bogie and the superstructure to reduce hunting during straight-line travel but to allow relative rotational motion on curves, said damping device comprising an arm 17 connected to the superstructure as by a link 14, an inverted U-shaped bracket 20 fixed on the bogie, friction layers 21 and 22 sandwiching the arm 17 and urged together against the arm by a backing member 18 on a lever 27 which is pivoted to the bogie at 38 and biased by a spring 32, and a roller 40 mounted on the lever 27 and normally located in a rebate in the arm 17, the arrangement being such that on the occurrence of relative longitudinal motion between bogie and superstructure when the vehicle negotiates a curve, the roller 40 leaves the rebate to counteract the spring 32 and thereby release the pressure on the friction members to allow relative motion therebetween. The backing member 18 is carried by a link 25 pivoted on the lever 27 and formed with a saw-tooth end face co-operating with a pawl 30 to allow compensatory adjustment for the wear of the friction layer 21. In an alternative embodiment, a bar attached to or integral with the superstructure engages a friction pad carried by a pivoted block shaped backing member and a portion of the bar defines a curvate recess to receive the roller.
Patent GB-548018-A (GB)
Title: Improvements in or relating to liquid cooling radiators
IPC: F01P7/12
Filed: 1941-03-19
Abstract: 548,018. Automatic control systems for internal combustion engines. LUSTY, I March 19, 1941, No. 3775. [Class 38 (iv)] Temperature of an aircraft engine is controlled by automatic adjustment of a flap or the like controlling the flow of air over a radiator in the cooling system by a device responsive to the temperature of the engine, the oil sump, or of the radiator. An electric motor adjusting the flap is controlled by a reversing switch subject to a thermostat and to a follow up connection with the motor. A releasable ball coupling 14 connects a cup controller coupled to a spring controlled regulating flap (not shown) with a screwed sleeve 12. This sleeve engages a companion sleeve 11  which is actuated by or forms part of the armature of a motor 10 controlled by a switch constituted by a contact 25 co-operating with alternative contacts 26, 27. The contact 25 is on a snap action lever which may be moved when balanced springs 36, 37 become sufficiently unbalanced by differential movement between a rod 33, attached to a thermostatic capsule 30, and a follow up member 16 carrying contacts 26, 27 and the pivot 24 of the snap lever. The follow-up member 16 is moved by means engaged between two springs 18, 20 of which the weaker engages the motor actuated sleeve 12 and the stronger a fixed abutment. Should the elements 16, 33 move relatively to an excessive extent due to failure of thermostat or motor the ball coupling 14 is disengaged by a pin and slot 40 causing rotation of one of them and the radiator flap opens fully. Should the capsule or its connections leak, a spring in the capsule will expand it to cause the flap to be opened. The positions of capsule and switch may be interchanged. An electric brake may be used with the motor. Specification 491,933 is referred to.
Patent GB-490143-A (GB)
Title: Improvements relating to windows for motor and other vehicle doors
IPC: E05F11/38
Filed: 1937-02-09
Abstract: 490,143. Vehicle - window regulators. MAGID, C. Feb. 9, 1937, Nos. 3829 and 8387. [Class 20 (iii)] A vehicle-window regulator for a vertically slidable sash is provided with retaining or holding means which is releasable by opening or closing the door, or by the operation of the door lock 23, to allow the window to be raised automatically. The hand-actuated gear 9 is retained by the pawl 14 which is moved transversely out of the plane of the pinion by an incline 21 on a link connected to the door lock, and the window is then raised by the spring 5 and lever 4. The incline 21 engages beneath the bent end of a guide-pin 16 within a bracket 18, Fig. 3. The pawl is pivoted on a bolt 15 and acted on by the spring 24. When the window is being lowered, the pawl slips over the teeth against a second spring 19. The closing means may be pneumatic, plungeractuated valves being controlled by the door handle and air compressing means may be actuated by the engine, or electromagnetic means may be used to shut the window.
Patent GB-1453140-A (GB)
Title: Device for measuring liquids or gases
IPC: G01F11/08
Filed: 1974-01-28
Abstract: 1453140 Liquid meters UNITAS SA 28 Jan 1974 [29 Jan 1973 19 April 1973] 03886/74 Heading F1A [Also in Division G1] A liquid or gas meter comprises measuring chambers 2, 3 defined by inter-connected diaphragm 4 or pistons, fluid entering inlet 7 being alternately admitted to chambers 2, 3 via a valve 10 slidable on rod 11 and controlling ports 9 and chamber inlets 14 and moved by the diaphragm assembly acting via slidable members 12, 13, the fluid being discharged via valves 21, 22 to outlet 18. The movement of the diaphragm of the chamber being filled effects movement of the diaphragm of the previously filled chamber to discharge the fluid from the latter. As shown, fluid entering chamber 3 moves the diaphragm assembly downwardly to discharge chamber 2 and move valve 10 downwardly until the inlet to chamber 3 is closed and the inlet to chamber 2 opened, both outlet valves 21, 22 being open. In Fig. 3 (not shown), the outlet valves are carried by a spring-loaded yoke (32). In Fig. 4 (not shown), the outlet valves open alternately, the outlet valve of the chamber being filled being held closed by the filling pressure acting on a piston assembly (37). A recorder may be connected to an output shaft 6 of the meter. In Fig. 2 (not shown), shaft 6 is replaced by a tube with ports opening into chamber 2 for admitting an additional fluid to the metered liquid or gas. The spaces behind the diaphragms may be vented by ports 30, as shown, or interconnected by a passage through diaphragm rod 5.
Patent GB-1484536-A (GB)
Title: Method for expanding organic substances
IPC: A23L19/00
Filed: 1975-01-29
Abstract: 1484536 Expanding tobacco leaves and food products AIRCO INC 29 Jan 1975 [5 Feb 1974] 3897/75 Headings A2B, A2C and A2E A method of expanding an organic substance especially shredded tobacco comprises pressurising a vessel to 200-1070 p.s.ia., immersing the organic substance in liquid carbon dioxide while maintaining this pressure, depressurising to substantially atmospheric, removing the impregnated substance from the vessel, and heating the substance to cause at least 10% expansion. Example IV describes the application of this method to prunes, apricots, pears, raisins and tea leaves. Suitable plant (not shown) in which the method may be performed is also described.
Patent GB-547340-A (GB)
Title: A mechanical picker-buffer and shock absorber for looms
IPC: D03D49/36
Filed: 1941-03-24
Abstract: 547,340. Picker-buffers for looms. METCALFE, F., and METCALFE, F. March 24, 1941, No. 3934. [Class 142 (iii)] A device for checking the picker comprises a lever pivoted upon a bracket behind the back of the shuttle box and having a slot A through which the picker spindle passes. The part of the lever surrounding the slot is faced with soft leather and the lever is under control of a spring or strong indiarubber bands. The lever may have a second arm. To reduce wear, the lever may be mounted upon a bush B.
Patent GB-1280623-A (GB)
Title: Invalid chairs
Inventor: MORSE-BROWN AUSTIN GUY
IPC: A61G5/14
Filed: 1970-01-28
Abstract: 1280623 Invalid chair leg rest BATH INSTITUTE OF MEDICAL ENG 8 Jan 1971 [28 Jan 1970] 4024/70 Addition to 1277210 Heading A4J  The invalid chair of the parent Specification is fitted with a leg rest 51 which is pivoted at 54 and so arranged that it is retracted by strut 55 when the spring assisted seat 8 rises and, as the invalid sits down it is extended into the operative position.
Patent GB-1488232-A (GB)
Title: Pump
IPC: F04B43/10
Filed: 1976-02-02
Abstract: 1488232 Reciprocating pumps J E PERSSON 2 Feb 1976 [31 Jan 1975 11 April 1975] 04025/76 Heading F1A A pump, e.g. for a water well, comprises a tubular pumping member 9 of elastic material, e.g. rubber, with helically wound reinforcing filaments e.g. of metal, the pitch angle of which is such that axial extension and contraction of member 9 varies its internal volume to effect pumping via inlet and outlet check-valves 21, 20. To smooth the delivery flow, an accumulator member 8 is connected downstream of outlet valve 20 and has its reinforcement pitch angle such that its volume varies inversely with that of pumping member 9 on extension and contraction of the members by actuating rod 7, which also acts as the delivery pipe, the capacity of member 8 being half that of member 9. The inlet end of member 9 is secured within casing 2 by a pin 12 engaging an inlet tube 10, perforations 11 and 3 providing a filtering action. A filler member 22, e.g. of elastomeric material may be located within member 9. In Fig. 6 (not shown), accumulator member 8 is arranged coaxially within member 9 and acts as a filler. In Fig. 7 (not shown), the inlet end of the pumping member is releasably secured to a well casing by a releasable expander plug, and rod 7 is operated by a handle (27) via a chain. Actuating rod 7 may be in the form of coilable plastics tubing. The ball-valves 20, 21 may be rubber-clad.
Patent GB-641890-A (GB)
Title: Improvements in and relating to automatic frequency control of radio-frequency oscillators
Inventor: RATCLIFFE STANLEY
IPC: H03L7/04
Filed: 1947-02-12
Abstract: 641,890. Automatic frequency control systems. MINISTER OF SUPPLY. Feb. 12, 1947, No. 4070. [Class 38 (iv)] [Also in Group XL (c)] A system of the kind set forth in Specification. 641,899 wherein the frequency of a thermallytuned oscillator is controlled in dependence on the tuning error by heating current operative on a tuning-strut and the value of which depends on the error, is characterized by an arrangement wherein a differentiated feed-back operates on the trigger circuit so that the rate of change of frequency is proportional to the tuning error and independent of the exponential heating effects of the tuning-strut. The output at 33 from the trigger valve 19 is applied to the grid of a valve 34 which has a timeconstant circuit CR2 connected between anode and grid with the result that the anode voltage rises exponentially. By choice of C and R2 this rise is made to simulate the rise in temperature of the tuning-strut. The anode voltage thus represents the actual oscillatory frequency. This is differentiated by the elements 37, 38 and a voltage representing the rate of frequency change is amplified at 36, 39 and fed back as an additional input to the trigger valve 19. Specification 641,891 is referred to.