baber/WOPTO huggingface dataset:
Patent GB-1535259-A (GB)
Title: Process for making ceramic resistor materials
IPC: C01G23/00
Filed: 1976-04-30
Abstract: 1535259 Mixed metal oxides TEXAS INSTRUMENTS Inc 30 April 1976 [2 May 1975] 17718/76 Heading C1J [Also in Division H1] A process for producing a mixed metal oxide material (preferably a ceramic resistor material of positive temperature coefficient of resistivity) including at least one first element from Ba, Sr, Ca and Pb and at least one second element from Ti, Sn and Zr comprises incorporating water soluble compounds and/or water dispersible compounds of the appropriate elements in an aqueous vehicle, adding a solution of an insolubilizing agent which will cause the formation of a precipitate containing said element(s) present in any water-soluble compound(s), separating the mixture of the precipitate(s) and any water dispersible compound(s) from the aqueous vehicle and heating the mixture to form a mixed metal oxide material. A dopant element e.g. Y, La, Ce, Dy or Pr may be incorporated in the mixed oxide material, as also compounds of Mn or Si may be.
Patent GB-380513-A (GB)
Title: Improvements in removal of sulphur dioxide from gases
IPC: B01D53/50
Filed: 1931-06-19
Abstract: Sulphur dioxide is removed from gases, for example flue gases, by treating the gases with an aqueous liquid containing an oxidation catalyst, and in dissolved or suspended form adding lime or chalk or other alkali which will produce an insoluble sulphate to the liquid at some part of the cycle to remove the sulphur compounds as calcium or other insoluble sulphate while re-circulating the residual solution into contact with the gases. The oxidation catalyst is preferably a dissolved or suspended iron compound, particularly a suspension of iron hydroxide, but other catalysts, for example manganese salts, may be used.  This treatment also removes sulphur trioxide, sulphuric acid, flue dust and grit.  Flue gases pass up an acid resisting tower 1 first coming into contact with an acid solution of iron sulphate entering through sprays 4 and then with an alkaline suspension of ferric hydroxide entering through sprays 5. The acid effluent passes from the bottom of the tower via a discharge trough 14 into a tank 15 from which it is in part returned by a pump 16 to the sprays 4 and in part passes through a conduit 18 into a settling tank 19 which is provided with baffles 20.  Here calcium sulphate and dust settle and the clarified solution of iron sulphate passes to a tank 13 to which a calculated quantity of chalk suspension is supplied from a tank 22.  The tank 13 is supplied with air through a <PICT:0380513/III/1> pipe 30 and oxidation of the iron hydroxide suspension takes place.  The suspension is returned by pumps 10, 11, 12 through a conduit 7 to the sprays 5.  The chalk suspension is produced with the aid of liquid byepassed through a line 24.  Accumulation of soluble salts in the system is avoided by byepassing a small quantity of the circulating alkaline suspension through a line 25, filter 26, and drain cock 28.  In order to replenish this liquid a slight inward flow of water through the pump glands is provided; this also prevents erosion of the pump glands. Precipitated catalyst is returned from the filter to the system. The tower 1 is supplied with baffle boards 2, 3 and scrubbing rings 6. The acid circulation may be seven times the alkaline circulation in volume.  The iron may be added as ferrous sulphate. The pH of the acid solution is preferably 1,0 to 2,5.
Patent GB-333982-A (GB)
Title: Device for securing artificial teeth to the vulcanite plate
IPC: A61C13/10
Filed: 1929-06-10
Abstract: 333,982. Campbell, C. T. June 10, 1929. Teeth, artificial. - A metal fitting employed to give one ordinary diatoric molar or bicuspid tooth a better hold in a vulcanite denture consists of a metal band 10 curved to fit the base of the tooth 11 and formed with two projecting banded pins 14. The ends 12 of the band 10 are turned inwards to engage in the usual passage 13 formed through the tooth.
Patent GB-1037318-A (GB)
Title: Improvements relating to devices for purifying the exhaust gases of internal combustion engines
IPC: F01N3/38
Filed: 1963-05-06
Abstract: 1,037,318. Purifying exhaust gases. C. W. MORRIS. May 6, 1963 [May 18, 1962; April 1, 1963], No. 17833/63. Heading F1B. An afterburner device for purifying exhaust gases comprises an afterburner chamber 20, Fig. 2, into which the gases are admitted through Venturi injectors 33 aspirating air to mix with the gas, a by-pass valve 84 permitting some of the exhaust gases to by-pass the Venturis. The exhaust gases flow through chamber 34 to orifices 31 opposite the Venturis 33, the jets from the orifices aspirating air from the pipe 61. The mixed gases flow through heat exchange passages 73, Fig. 3, formed by a corrugated tube 71, into chamber 20, and after combustion return through passages 74 to outlet 27 connected to a Venturi throat 42 leading to atmosphere. The by-pass valve 84 is controlled by intake manifold suction so that it is closed at idling and open at normal running, the by-passed gases flowing through nozzle 41 directly into Venturi 42. In a modification, Fig. 5, (not shown) the by-pass valve 181 is arranged centrally of the Venturis 132, which are extended by tubes 171 projecting into the burner chamber 120 and forming heat exchange means with the burnt gases flowing to the outlet tube 142. The tubes 171 may be of different lengths to assist in silencing of the exhaust pulses by interference effects. The combustion chambers are covered by sound and heat insulating material.
Patent GB-1320117-A (GB)
Title: Electrical limiting circuits
IPC: G05D1/02
Filed: 1972-04-18
Abstract: 1320117 Automatic control of course SPERRY RAND CORP 18 April 1972 [4 May 1971] 17847/72 Heading G3R [Also in Divisions G1 and H3] A circuit for limiting an output voltage to the value of a threshold voltage (see Division H3) is used to prevent an excessive turn rate being applied to a ship. Signals representing heading error and the heading error rate of change are applied to terminals 15, 17 respectively, while a programmed course may be applied to terminal 19. These signals are combined in network 21 for amplification in amplifier 23, the input of which is clamped whenever its output exceeds a corresponding threshold voltage, by means of limiter amplifiers 47, 51 and diodes 63, 65 respectively. The threshold voltages are devised in accordance with the reciprocal of the speed of the ship, a signal proportional to speed being applied to terminal 27. A signal representative of the rate of change of the ship's heading is applied to terminal 29, and according to its sign causes switch 55 or switch 57 to clamp the second input of limiter amplifier 47 or limiter amplifier 51 to the potentials + E or -E respectively.
Patent GB-342638-A (GB)
Title: Improvements in or relating to trailing carriages for motor vehicle trailers
IPC: B60P3/07
Filed: 1930-06-11
Abstract: 342,638. Trailers for carrying vehicles. KEGRESSE, A., 156, Rue Armand Silvestre, Courbevoie, France. June 11, 1930, No. 17931. Convention date, June 12, 1929. [Classes 108 (i) and 108 (ii)]. Independent trailing carriages adapted to support the wheels of trailers are constructed with a transverse rigid axle connected to two-wheeled bogies, each bogie having four longitudinal leaf springs and supporting a trough or cradle in which one of the trailer wheels rests. The four inverted leaf springs 6 at each side of the vehicle are clamped at their centres to a bracket 7 which is mounted upon an axle 8, the two axles 8 on opposite sides of the vehicle being rigidly secured together by clamping to them a tube 10. The ends of the wheels are pivoted to vertical plates 5 supported from the wheels 4. The outer ends of the axle 8 carry cradles 9 in which rest the wheels 3 of the trailer 1, the wheels being secured in the cradles by bolts 12. Specification 288,648, [Class 108 (ii), Road vehicles, Undercarriage details &c. for], is referred to.
Patent GB-315698-A (GB)
Title: Improvements relating to the winding up of spring motors
IPC: F03G1/00
Filed: 1929-06-12
Abstract: 315,698. Scintilla Akt.-Ges. July 16, 1928, [Convention date]. Utilizing movement of driver or vehicle.- Relates to the winding of the spring motors of apparatus such as clocks, direction indicators, registering devices, &c. mounted upon vehicles such as motor cars, aeroplanes, and motor boats. The movements of the driver in controlling the vehicle are used. The use of the movements of the steering column, the clutch, hand brake, foot brake, and gear levers, and the light switch are mentioned. Overwinding is prevented by providing a free-wheel or slip coupling. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a statement that the movements of the parts of a vehicle relative to one another may be used for winding up the spring motor. This subject-matter does not appear in the Specification as accepted.
Patent GB-807216-A (GB)
Title: A process for the manufacture of shaped objects from polyamides by extrusion, and the objects thus manufactured
IPC: C08L77/00
Filed: 1955-06-09
Abstract: Shaped objects other than threads or films are obtained by mixing polyamides with up to 2 per cent of tributyl phosphite and extruding the mixture through the usual extruders for processing thermoplastic materials.  Mixes of a polyamide thus plasticized with another untreated polyamide may be used.  The phosphite is rolled with the polyamide until a thin layer of phosphite covers the grains.  In examples: (1) granules of a polyamide obtained by polymerization of e -caprolactam in presence of 0.2 per cent acetic acid were rolled for 2 seconds with 0.2 per cent tributyl phosphite and the mixture extruded horizontally from a table extruder.  (2) Granules of a polyamide formed from hexamethylene diamine and adipic acid are similarly treated and extruded. U.S.A. Specification 2,493,597 is referred to.
Patent GB-653542-A (GB)
Title: Improvements in or relating to hydraulically actuated brakes
Inventor: MOLE PETER ALAN
IPC: B60T11/10
Filed: 1948-07-06
Abstract: 653,542. Brake system master cylinders. GIRLING, Ltd. July 6, 1948, No. 18101. [Class 103 (i)] [Also in Group XXIV] In order that it may be used as a parking brake the hydraulic brake system master cylinder on a vehicle has a plunger rod 10 on which are formed a series of ratchet teeth 22 adapted to be engaged by pawls 24, whereby the piston may be locked in the brakes applied position. The pawls 24 are normally held clear of the teeth 22 by means of a spring ring 27 around their inner ends and are engaged by the operation of a hand lever 33 which slides a collar 28 axially along the outer faces of the pawls.
Patent GB-120474-A (GB)
Title: Improvements in Clutches.
Inventor: SUMNER WILLIAM
IPC: F16D41/20
Filed: 1917-12-07
Abstract: 120,474. Sumner, W. Dec. 7, 1917. Driving-gear for endless-belt elevators; discharging-devices.-In load-raising apparatus, a clutch coil surrounds the driven shaft and is secured at one end to a driving-member and at the other to a loose member which is automatically retarded during rotation and overruns when the driving-member stops. In Fig. 4, an electromotor 6 is shown driving the pulley 1, forming the driving-member of the clutch, and a cage 5, required to raise a load 3, discharge it to a shoot 4, and return to ground level by the action of its own weight, is secured to a belt 12 passing over pulleys driven by the clutch-driven shaft 2. The cage is alternately raised and dropped by automatically or manually switching on and off the electro-motor 6. A clutch coil 8 secured at one end to the driving-pulley 1 and at the other end to a loose part 9 surrounds a sleeve 11 secured to the driven shaft 2. The part 9 carries vanes 10, so that when the pulley 1 is rotating the part 9 lags behind owing to wind resistance, and the coil 8 is tightened, and drives the shaft 2. When the pulley 1 stops, the clutch automatically disengages. The vanes 10 may be replaced by a weighted lever 12<a>, Fig. 6, pivoted on the part 9 and by centrifugal action pressing an arm 14 into frictional contact with the shaft 2.
Patent GB-122166-A (GB)
Title: Pattern Plates for Cutting Out and Marking Upper Leathers for Shoes.
Inventor: RUTISHAUSER EMIL
IPC: C14B5/02
Filed: 1918-11-07
Abstract: 122,166. Rutishauser, E., (Assignee of Jost, H.). Jan. 8, 1918, [Convention date]. Grading and setting-out parts -A pattern plate or templet for cutting out and marking shoe uppers comprises a body 1 with a metal binding 2 and carrying small plates 3 furnished with marking points 4. The plates are formed with integral tangs by which they are secured to the body 1.
Patent GB-578728-A (GB)
Title: Improvements in or relating to sear mechanism for machine guns
IPC: F41A19/31
Filed: 1937-07-01
Abstract: 578,728. Automatic guns. HINGSTON, W. H. July 1, 1937, No. 18283. [Class 92 (ii)] Relates to the firing mechanism of automatic guns having a high rate of fire in which, during firing, the sear 1 is positively held away from the bent 4 by a trigger-operated slide 6 engaging the arm 1b of the sear. According to the invention, an intermediate lever or tumbler 9 is provided on the slide, one arm of the tumbler engaging with the bent-carrying member x, such as the breech block, and the other with the arm 1a of the sear 1. This arrangement ensures that, on letting go the trigger, the sear is moved by the bent-carrying member into full engagement with the bent, such movement occurring after the bent in its backward movement has passed the sear irrespective of the time at which the trigger is let go. A ball detent 5 retains the sear in its extreme positions.
Patent GB-846432-A (GB)
Title: Improvements in or relating to elastic fluid turbines
Inventor: HERTL ROBERT
IPC: F01D9/06
Filed: 1958-06-09
Abstract: 846,432. Elastic-fluid turbines. WESTING- HOUSE ELECTRIC CORPORATION. June 9, 1958, No. 18334/58. Class 110 (3). An elastic fluid turbine comprises a rotor, an inner casing surrounding the said rotor, and an outer casing enclosing the said inner casing, the said outer and inner casings being of substantially spherical shape and having substantially the same centre. In the turbine shown a rotor 14 is enclosed within an inner casing 12 and an outer casing 11. The outer casing is axially divided into a cover 33 and a base 34, the inner casing being similarly divided into a cover 36 and a base 37, the cover and base of each casing being joined by bolts 58 and 63 respectively. The outer casing supports the inner casing by bosses 41 (see Fig. 4) formed on the latter and co-operating with mating recesses 42 provided on the former; to provide lateral alignment vertical projections 43 on the inner casing engage mating projections 44 on the outer casing at one end of the turbine, while at the other end pins 45 project through the outer casing and into recesses formed in projections on the inner casing. A plurality of horizontal projections 43a on opposite sides of the outer casing mate with a plurality of grooves 44a on the inner casing to locate the casings axially. The entire turbine element is supported by lugs 51 slidably carried on pedestals 52 which may also carry bearing housings 53 for bearings carrying the extended rotor portions. Within the inner casing a nozzle casing 25 is supplied with steam at supercritical pressure by way of pipes 16a (see Fig. 7) which project through extensions 25a in the inner casing and are telescopically slidable in the nozzle casing, sealing means being provided at 16b. Steam from the nozzle passes through impulse stage 23 and subsequently through a series of pressure compounded stages 29 before entering the chamber 70 between the casings and leaving the turbine through the exhaust conduit 19. In other embodiments, Figs. 8-12 (not shown), the inner and outer casing covers are united by a flange and the inner and outer casing bases by a second flange, the flanges uniting the two halves of the turbine casing and being secured together by bolts. Specification 846,431 is referred to.
Patent GB-587289-A (GB)
Title: Improvements in or relating to air-tight lids for containers
IPC: B65D39/12
Filed: 1944-09-26
Abstract: 587,289. Stoppers &c. WEISS, H. Sept 26, 1944, No. 18374. [Class 125 (iii)] [Also in Group XVIII] A circular, elliptical, rectangular or other closure for a container comprises a flexible sealing ring 4, inner and outer pressure elements 2, 3 on two sides of the ring, and means for alternatively pressing the pressure elements together or releasing them apart, the pressure elements when pressed together deforming the ring and forcing its outer periphery into sealing relation against the inner periphery of the container mouth so that the container is closed and sealed, and means by which, in response to the operation of the means for releasing the pressure elements, the seal is broken other than at the sealing ring. In the form shown in Fig. 1, the plates forming the pressure elements 2, 3 are pressed together by a nut 11 engaging a threaded part 9 on the lower plate 2. To enable easy breaking of the seal, holes 12, 14 of small bore are provided in the post 9 and nut 11. The latter contains a rubber pad 13 which seals the hole 12 when the nut is screwed down and is lifted to open the hole when the nut is unscrewed. The pad 13 may be replaced by a rubber ball 20, Fig. 11, which, in the intermediate position shown, will act as a temporary non-return valve after reduction of pressure in the container. The edges of the plates 2, 3 may be bevelled, and a shoulder such as 7 may-be provided on either or each of the plates to locate the ring. The crosssection of the sealing ring may be rectangular, with or without a V-shaped recess on its inner surface, or circular. The inner surface of the mouth of the container may be smooth or annularly ribbed, or, if the sealing ring is circular in cross-section, may have an annular groove to receive the ring when it is compressed. The closure may be located in the mouth of the container by providing on the upper plate 3 an extension 8 which seats on the upper edge of the container or on a second sealing ring thereon, or by providing within the mouth of the container a shoulder on which the lower plate 2 seats. In the form shown in Fig. 13, the plates are pressed together by a forked lever 22 pivoting on a flat-sided post 9a on the lower plate, the lower ends of the lever being formed as cams 25. The post 9a has a bore 21a closed by a pad 13a in the crutch of the forked lever when the latter is in the position in which the sealing ring is compressed. A bottle stopper, Fig. 14, comprises a sealing ring made in two parts 4a held between a nut 26 and the head of a bolt 9. According to the Provisional Specification, the edge of the lower plate 2 is bevelled on the upper side and the edge of the upper plate 3 is square or rounded. The bottom of the post 9 may be coned, and the central hole in the upper plate may be similarly shaped. The two branches of the forked lever 22 are formed as eccentrically pivoted circular discs.
Patent GB-190420-A (GB)
Title: Improvements in tamping plugs for use in blasting
IPC: F42D1/18
Filed: 1922-07-05
Abstract: 190,420. Harris, W. E. July 5, 1922. Blasting-tampings.-A tamping is made in two wedge-shaped parts forming together a cylinder, each part having a cylindrical outer surface 3 and a flat slanting face 2 cutting the sides of the cylinder but not the ends. and grooved to receive the fuze 5. The wedges may be made cf glass, pottery, hardwood, fibre, or other material which can be crushed together with the ore; and one of the wedges may have a serrated surface to assist in retaining it in position against the force of the explosion.
Patent GB-941106-A (GB)
Title: Polymerisation of vinyl fluoride
IPC: C08F214/20
Filed: 1962-05-14
Abstract: 941,106. Polymerizing vinyl fluoride. E. I. DU PONT DE NEMOURS & CO. May 14, 1962 [May 18, 1961], No. 18449/62. Heading C3P. A process for the polymerization of vinyl fluoride comprises continuously introducing into a reactor maintained at constant temperature and at superatmospheric pressure, vinyl fluoride, water, a water-soluble polymerization reaction initiator and a monoolefin of at least 3 carbon atoms in a proportion of 10 to 10,000 parts per million by weight of the vinyl fluoride, maintaining the contents of the reactor in a highly dispersed, substantially homogeneous state, continuously removing from the reactor a slurry of vinyl fluoride polymer and water and recovering the vinyl fluoride polymer from the slurry. Specified monoolefins are propylene, butene-1, butene-2 and methyl propene. Many suitable initiators are listed including alkali metal and ammonium salts of inorganic per acids, organic peroxides and azo compounds. Examples describe the polymerization of vinyl fluoride in the presence of (I to V) propylene and (VI) isobutylene using 2,2 <SP>1</SP>-diguanyl-2,2 <SP>1</SP>-azopropane dihydrochloride as initiator. The products may be compounded with plasticisers, stabilizers, softeners, modifiers, dyes, pigments and fillers, and used for making films, foils, sheets, ribbons, bands, rods and tubes and for coating fabrics, leather and paper. Specifications 619,394, 651,163 and 905,879 are referred to.
Patent GB-770509-A (GB)
Title: Improved cooling air and/or fresh air inlet arrangement, especially for mechanicallypropelled vehicles with rear engines
IPC: B60H1/26
Filed: 1955-06-27
Abstract: 770,509. Road vehicle bodies. VOLKSWAGENWERK GES. June 27, 1955 [July 9, 1954], No. 18453/55. Class 108(1). [Also in Group X] A body panel 1 is provided with an annular air inlet 2 for fresh air and the panel 4 is supported from the panel 1 by means of a watercheck frame 3 and a number of supports 5. The inlet 2 may contain baffles forming additional support for the panel 1.
Patent GB-583253-A (GB)
Title: Improvements in wicks for lighters, lamps and the like
IPC: F21V37/00
Filed: 1944-09-27
Abstract: 583,253. Wicks. ROBINSON, R. H. Sept. 27, 1944, No. 18479. [Class 75 (i)] To allow of the easy insertion of a fibrous glass yarn or-asbestos wick in petrol.lighter or lamp the wick is impregnated and/or coated with a grease, paraffin wax or other solid or viscous material which is soluble in the fuel being burnt. Reference has been directed by the Comptroller to Specification 17,338/04, [Class 75].
Patent GB-1577765-A (GB)
Title: Pharmaceutical product in composition for veterinary use
IPC: A23K1/18
Filed: 1977-05-03
Abstract: The process according to the invention consists of adding specific odoriferous substances and flavouring substances to veterinary medical preparations which are designed for oral administration. The purpose of the specific aromatisation is, on the one hand, to mask the pharmaceutical active compounds and, on the other hand, to stimulate appetence. In this way, the consumption of the preparations by the animal to be treated is significantly facilitated.
Patent GB-1037272-A (GB)
Title: Improvements relating to semi-conductors
IPC: H01L23/16
Filed: 1963-05-10
Abstract: 1,037,272. Semi-conductor devices. ROBERT BOSCH G.m.b.H. May 10, 1963 [May 12, 1962], No. 18512/63. Heading H1K. A semi-conductor body is sealed in a metal casing by a metal disc having an aperture through which passes a connecting lead of the body insulated and spaced from the edges of the aperture by a sleeve of cast resin which has a wall thickness less than the sleeve length. In one embodiment (Fig. 1) a silica body 11 is sandwiched between molybdenum plates 12 and 13 disposed within a copper housing 10. A connecting lead 14 of the silicon body passes through an aperture in a metal disc 17, soldered and hermetically sealed at its periphery to the housing 10, and between the lead and the disc is provided a cast resin sleeve 18. A layer of varnish 15 protects the semi-conductor assembly and the housing is filled with a silicone casting compound 16. In a further embodiment (Fig. 2, not shown) a metal sleeve is soldered to the connector lead and provided between the lead and the cast resin sleeve.