baber/WOPTO huggingface dataset:
Patent GB-891182-A (GB)
Title: Improvements in or relating to the moulding of concrete
Inventor: GORST CHARLES ROBERT
IPC: E04G9/05
Filed: 1959-09-18
Abstract: Concrete articles are moulded in or around moulds formed of foamed polystyrene which are destroyed when the concrete has set. The moulds may be tapered and may be destroyed by burning, or may be dissolved in aromatic hydrocarbons or chlorinated hydrocarbons.
Patent GB-505999-A (GB)
Title: Improvements in or relating to the production of printing plates
IPC: B41N3/08
Filed: 1937-11-19
Abstract: 505,999. Photo-mechanical printing- plates. SCHLESINGER, A. Nov. 19, 1937, No. 31926. [Class 98 (ii)] [Also in Group XVI] Photo-mechanical printing-plates of zinc, aluminium, or other metal are treated so as to form on the image a uniform film of a noiiresinous drying-oil composition which is insoluble in water or printing-ink and is substantially insoluble in the usual washing-liquids. The composition preferably contains a small proportion of a non-drying oil such. as castor oil, and an oxidation catalyst such as manganese dioxide, and preferably consists, in addition, of industrial alcohol, linseed oil, and turpentine or benzol. The plate, to which the image has been applied, is coated with gum which is then removed from the image area ; a layer of varnish and a layer of the composition are applied and finally the gum and overlying layers are removed. The composition may contain a small amount of solvent for the varnish to facilitate binding. The adherence between the metal and the composition may be increased by treating the image with a non- aqueous solution consisting of alcohol and ammonia or iron perchloride and an acid to which calcium chloride or sugar may be added to remove any water present. Specification 407,047; [Group XVI], is referred to.
Patent GB-748197-A (GB)
Title: Improvements in mixers for compounding rubber, plastics, paint pigments and like materials
Inventor: SHAW RONALD OSMAN
IPC: B01F15/00
Filed: 1953-11-18
Abstract: 748,197. Mixing-machines. SHAW & CO., Ltd., F. Feb. 14, 1955 [Nov. 18, 1953], No. 31954/53. Class 86. An internal mixer for use in compounding rubber, plastics, paints, pigments and like materials has two co-operative rotors between which the material to be compounded passes, one rotor having two double helical teeth and the other having three double helical teeth. As shown, shafts 1, 2 carry rotors 3, 4, respectively, the rotor 3 having two double helical teeth in which the teeth 5 of one helix are pitched-on one tooth space beyond the teeth 6 of the other helix. The rotor 4 has three double helical teeth, the teeth 7 of one helix being staggered with respect to the teeth 8 of the other helix. The teeth may be of any desired shape, such as involute or cycloidal.
Patent GB-371900-A (GB)
Title: Improvements in or relating to autoclaves, digesters, sterilising pans and like apparatus
IPC: B01J3/04
Filed: 1930-10-24
Abstract: 371,900. Sterilizing pans. HALL & KAY, Ltd., KAY, P., and HALL, J. H., Stockport Road, Ashton-under-Lyne. Oct. 24, 1930, No. 31956. [Class 81 (i).] A washing boiler, digester, sterilizing pan, &c. has a hollow hinged lid connected to a flue through which a draught is created and so arranged that the cavity of the lid is opened to the flue only when the lid is opened, rising steam being drawn off through the flue. The upper part of the lid 6 is connected by a tube 13 curved to a radius struck from the hinge 10, with the lower end of a vent duct 14. The tube 13 operates in a curved part 15 inset in the duct 14. The tube is closed at its end 16 and is formed with an aperture 17. When the lid is closed, the aperture 17 lies within and is closed by the part 15. The lid is provided with a flange 11 and baffles 12. In a modification, the lid 6, Fig. 5, is hinged on an extension 18 of the vent duct and apertures 19, 20 are provided in the eye of the hinge on the lid and in the end 18 of the duct respectively so that the lid is cut off from the duct when the lid is closed and opened to it when the lid is opened.
Patent GB-604561-A (GB)
Title: Improvements in telemetering systems
IPC: G08C19/06
Filed: 1945-11-27
Abstract: 604,561. Electric indicating systems. GENERAL ELECTRIC CO., Ltd., SMART, N. C., and FIELD, R. W. G. Nov. 27, 1945, No. 32016. [Class 40 (i)] In a system for the electrical transmission of a meter needle or switch position to a remote point, the transmitter scale is sub-divided by a contact and segment array and a selective connection is made by the transmitter contact simultaneously with a segment and a contact, effecting energization of the appropriate combination from the N and M relays associated with 2n segment and 2n+m contacts respectively, and thus indicating to the remote " slave " the scale division in which the moving contact lies. In the embodiment described there are N relays associated with 2n segments, also M relays with 2n+m contacts, and n=m=3. The reading of the transmitting meter Q is indicated by the bridge piece 81 which effects connection between one of the contacts 1 to 64 and one of the segments 71 to 78 and thereby selects one of the 2n+m relay combinations (total 64 in the embodiment) from relays A, B, C, D, E and F, which is then signalled to the remote " slave " over the selected lines of pilot wires 84 to 89, which are associated with the relays G, H, J, K, L and M to the remote point. Each of the relays G to M carries one contact, G1 to M1, associated with a meter 82 and a source of' stabilized voltage 80, each contact being in series with one of a set of graded resistors. The position of bridge piece 81 is reflected by the reading of meter 82, consequent upon the selection of contacts from g 1  to m 1 . The number of pilot wires may be reduced to two if a step-by-step switch is employed at the transmitter and stepped until its wipers reach marked contacts indicative of the operative relay combination, impulses transmitted being resolved into the meter reading at the receiver in any suitable way. The indicator may as shown, be continuously operated, or at intervals during which the pointer is locked. To prevent incorrect readings consequent upon the bridging of adjacent segments and contacts the contacts c  5  and f 2  are provided, and the " multiple " is staggered.
Patent GB-648186-A (GB)
Title: Improvements relating to germanium rectifiers
IPC: H01L21/223
Filed: 1948-12-10
Abstract: A process for the manufacture of a germanium crystal rectifier involves the heating of "pure" germanium in an atmosphere of ammonia with measures to prevent the acidization of the germanium during heating.  The heating may be carried out in an atmosphere substantially free of oxygen, and in which some hydrogen is present, and may comprise the steps of firstly heating for a time at a temperature between 400 DEG C. and 800 DEG C, and then for a time between 800 DEG C. and 1,200 DEG C.  Alternatively, the heating may be gradual to a temperature above 800 DEG C. and then maintained thereat for a period, or heating may take place in a vacuum until the germanium is molten, and gaseous ammonia then introduced.
Patent GB-698542-A (GB)
Title: New oxazolines and processes for producing the same
Inventor: SLACK RONALD
IPC: C07D263/14
Filed: 1949-12-14
Abstract: The invention comprises oxazolines of the formula <FORM:0698542/IV (b)/1> where R is p-nitrophenyl and R1 is hydroxymethyl or R is hydrogen and R1 is p-nitrophenyl-hydroxymethyl; these exist in erythro and threo forms, both of which are optically active. Mixtures of such oxazolines are prepared by treating 1-p-nitrophenyl-2-aminopropane-1 : 3-diol with an iminoether or thioiminoether of dichloracetic acid or a salt of such ether. These ethers may be obtained according to Specification 698,543. The oxazolines are intermediates in the synthesis of chloramphenicol (see Specification 698,544).  They have the same configuration as the aminodiol used as starting material. Examples show the production of the D-threo, DL-threo, L-erythro and DL-erythro forms, the structural isomers being separated by crystallization or by chromatography.  The erythro forms may be converted into threo forms via intermediate formation of chloramphenicol or its epimer.
Patent GB-541297-A (GB)
Title: Improvements in and relating to drilling and boring machines
IPC: B23Q1/48
Filed: 1939-12-13
Abstract: 541,297. Boring and drilling machines. PARNALL AIRCRAFT, Ltd., and CLAYTON, A. C. Dec. 13, 1939, No. 32140. [Class 83 (iii)] A boring or drilling machine particularly for drilling holes in large rings has a pillar 28 mounted on compound slides 23, 25 and carrying a vertically adjustable head 29 provided with an angularly adjustable bed plate 32 fitted with the casing 37 of the drill support which is adjustable about trunnions 40. The head 29 is adjusted by a screw 30 and the bed plate is adjustable about the horizontal axis of bearing members 34 secured to the sleeve. The bed plate carries a slidable member 35 which supports a driving- motor 36 also provided with standards 42 carrying the trunnions 40 of the drill casing 37. The drill 39 is driven by a pulley connected to the motor. The work is carried on a turntable 2 mounted on a head 3 secured to a spindle 6. The table is indexed by plungers 9 moved by handles 10 and coacting with holes located at one degree intervals around the table. Indexing to fractions of a degree is obtained by means of a block 15 carrying the plungers and supported on a segment 14, operated by a lead screw driving a drum 17 graduated to indicate fractions of one degree of table rotation.
Patent GB-1523286-A (GB)
Title: Coloured copolymers
IPC: C08F20/00
Filed: 1975-08-01
Abstract: 1523286 Self-coloured polymers PRODUITS CHIMIQUES UGINE KUHLMANN 1 Aug 1975 [2 Aug 1974] 32182/75 Heading C3P Structurally coloured macro - molecular material is prepared by polymerizing acrylamide with a dyestuff containing a polymerizable double bond and then copolymerizing in situ the prepolymer of acrylamide and dyestuff with at least one other colourless monomer, e.g. a vinyl monomer, styrene, acylic acid, an acrylate or acrylonitrile. The dyestuffs may be of the azo, anthraquinone or phthalocyanine series and may contain a maleimido, acryloylamino or cyanovinyl group.
Patent GB-1457719-A (GB)
Title: Process for the preparation of norpatchoulenol
IPC: C07C67/00
Filed: 1975-08-01
Abstract: 1457719 Derivatives of patchoulol ROURE BERTRAND DUPONT SA 1 Aug 1975 [2 Aug 1974 9 April 1975] 32258/75 Heading C2C The invention comprises compounds of the formula where R is COOH, CH 2 OH or CHO. Compounds wherein R is COOH and CH 2 OH are prepared by oxidizing patchoulol. The compound wherein R is CHO is prepared by oxidizing the compound wherein R is CH 2 OH. The aldehyde may be further oxidized to the acid. The acid may be oxidatively decarboxylated to give norpatchoulenol.
Patent GB-1126608-A (GB)
Title: Process for varying the electrical conductivity of a film of metal, semi-metal or semi-conductor
IPC: C30B31/02
Filed: 1967-07-13
Abstract: 1,126,608. Variable resistors. FORD MOTOR CO. Ltd. 13 July, 1967 [24 Aug., 1966], No. 32277/67. Heading H1K. The electrical resistance of a thin film of a metal, semi-metal or semi-conductor is varied by applying the film to the surface of an ionically conductive body and passing a current between the film and the body. Within the ionic body the current is carried by the movement of ions, e.g. of positive silver ions away from the thin film if the ionic material is silver bromide and if the circuit polarity is as shown, and this results in the development of an excess charge within the ionic body in the vicinity of the thin film; i.e. of fixed negative bromine ions in the arrangement shown. This charge repels or attracts the carriers in the thin film, thereby affecting the resistance of the film. Up to a certain time the film resistance varies as a linear function of the time for which the ionic current flows. The film may be, for example, of evaporated Au or of Te, and an Au counterelectrode is evaporated on the opposite face of the ionic body to that carrying the thin film.
Patent GB-287953-A (GB)
Title: Process and apparatus for automatic conveyance of crown cork caps, or finished crown corks to machines used respectively for manufacturing crown corks or for instance, for capping or stoppering by means of crown corks
IPC: B27J5/00
Filed: 1926-12-21
Abstract: 287,953. Aktieselskabet Dansk Pressefabrik, and Skov, H. A. Dec. 21, 1926. Crown corks, applying. - Crown corks " for a capping-machine are removed from a hopper a by a brass or other non-magnetic band, tape &c. c to which they are .caused to adhere by magnets f, g, h, having common polepieces being arranged to provide a long narrow magnetic field, the strength of which decreases with its distance from the hopper a. If the crowns are not in alignment with a discharge shoot i, they are returned to the hopper by projections p adjacent the upper part of the band, if the decreasing magnetic force has not previously allowed them to fall back there. The projections p also engage the edges of the crowns and when the crown faces inwards guide it to a shoot q adapted to return it to the hopper a. The conveyer band moves rapidly to ensure a constant succession of crowns at the mouth of the shoot i, the rearmost acting to press forward those in the shoot and keep it full. The magnets may be permanent magnets, electromagnets, or wire coils.
Patent GB-485664-A (GB)
Title: A smoke prevention and consumption device for use in boiler and other furnaces
IPC: F23L7/00
Filed: 1936-11-26
Abstract: 485,664. Consuming smoke in furnaces. COCK, A. H., and MALLINSON, G. Nov. 26, 1936, No. 32345. [Class 51 (i)] In a furnace of the kind provided with nozzles arranged to supply steam above the grate and in an upwardly inclined direction behind the firebridge, steam nozzles 0 arranged behind the bridge M or at O<1> behind a second bridge P, where two bridges are employed, are arranged at an inclination depending on the height of the chimney or draught. The higher the chimney, or the greater the draught, the less is the angle of the nozzles from the perpendicular. A damper Q controls the passage of air from the ashpit to the flue through the space between the bridges M, P. Steam is delivered above the grate through a nozzle H.
Patent GB-648199-A (GB)
Title: Improvements connected with hinges
IPC: E05D3/02
Filed: 1948-12-15
Abstract: 648,199. Hinges. MYERS, S. J. Dec. 15, 1948, No. 32381. [Class 65(ii)] In a hinge of the kind wherein a bearing member 1 is loosely arranged on a hinge pin 2, the bearing member being of double conical form seated in recesses of complementary conical form in the hinge members 3 and 4, the conical portions of the bearing member are separated by a centre portion 9, as shown, of cylindrical form. Oil grooves 10 are formed in the bearing member.
Patent GB-226972-A (GB)
Title: Improvements in or relating to pre-payment gas meters
IPC: G07F15/00
Filed: 1923-12-28
Abstract: 226,972. Sutherland, Ltd., A. G., and Mace, B. E. Dec. 28, 1923. Gas, supplying by meter.-A prepayment meter for use, in hotel bedrooms &c. and adapted to be. readily zeroized comprises a, coin-actuated crown wheel having a pawl g engaging a ratchet wheel f with sufficient, resistance to drive it, when the crown wheel is rotated after prepayment, but which allows the ratchet wheel to be rotated in the reverse direction to close. the valve by means of a key, backward movement of the crown wheel being prevented by a pawl. The valve is operated by a flange d on a screwed travelling spindle c engaging a wheel nut b in mesh with a meterdriven worm a. The spindle has a slidable connection by means of a pin f<4> with a slotted sleeve f<2> rigid with the ratchet wheel f and formed with a member f<1> adapted to have a screw-driver or equivalent engagement with a key i inserted coaxially with the crown wheel through the operating handle. The slot in the sleeve f<2> is closed to limit the movement of the mechanism by the key and prevent strain. A ratchet wheel m coaxial with the operating handle and controlled by a pawl n on the front plate l has a key connection with the key i and allows this to be rotated in one direction only. Indicators.-An unconsumed gas indicator o is rotated by a rod p pivoted eccentrically thereto, the rod p being pivotally carried at its other end by a rod g secured to a ring q<1> rotatably mounted on the spindle c. A slotted rod q<2> guides the rod q.
Patent GB-579070-A (GB)
Title: Improvements in and relating to fuzes for bombs, land mines, marine mines and the like
IPC: F42C11/06
Filed: 1937-11-25
Abstract: 579,070. Clockwork bomb fuzes. CLARKSON, G. T., and PURVES, R. Nov. 25, 1937, No. 32433. [Classes 9 (i) and 9 (ii)] To obviate audible ticking, electrically or mechanically-fired clockwork fuzes for bombs and land and sea mines have the time interval controlled by an electro-magnetic brake in which eddy currents are produced in a disc or cylinder rotating in a magnetic field. Fig. 1 shows the invention applied to an electricallyfired time fuze for a bomb to be dropped from aircraft. The last wheel g of the gear train driven by the clock-spring drives a disc i of aluminium, silver or copper in the magnetic field between iron or steel polepieces k, t. A switch m driven by reduction gear n from the clockwork train operates after an adjustable time to close the firing circuit through a safety switch r, dry cell wand an electric detonator x. The gear train is started by removing an obstruction-pin q controlled by a spring-pressed cap p which rises when the usual arming vane withdraws the screw y or when a soluble plug is dissolved in the case. of a marine mine. The cup p carries a C-shaped strip of conducting material s which expands into a recess and joins conducting rings z in the firing circuit. In a mechanically-fired fuze having a spring striker, a clock-spring drives a gear train for rotating a damping disc as before, and also a second gear train for rotating a second disc carrying a cam for operating a slide to release a spring-controlled striker for the detonator. The striker spring is cocked in known manner by a weight which moves forward on impact. The gear train is started by the removal of an obstruction-pin when the usual safety pin is withdrawn at the moment of release of the bomb from the aircraft. The obstruction-pin may be removed to start the gear train by inertia on impact.
Patent GB-371774-A (GB)
Title: Improvements relating to devices for the recording of sounds on sound films
IPC: G11B7/00
Filed: 1931-11-23
Abstract: 371,774. Optically recording sound. PALMA, F. A. R. DE, 7, Rue Beudant, Paris. Nov. 23, 1931, No. 32434. Convention date, Nov. 24, 1930. [Class 40 (ii)] In recording sound by directing a light beam on to a film past a device influenced by the sound for varying the amount of light permitted to pass, this device comprises a plate arranged in the plane of the light beam and adjacent to the pole of, or between a pair of poles of, an electromagnet influenced by the sounds transmitted through a microphone and amplifier. In Fig. 2, the plate a arranged in the gap between the poles d<1>, d<2> of a sound-influenced electromagnet normally lies in the plane of the beam passing through the gap to the film, and is flexibly supported, either by its own flexibility or by flexible strips c<1>, c<2>, from supports b<1>, b2 so as to move in the changing magnetic field and vary the light passing. This light may pass through a slit to the film or the light passing one side of the gap may be concentrated by a lens on to the film the other side of the gap being masked. The Specification as open to inspection under Sect. 91 (3) (a) describes a light valve comprising a plate a, Fig. 3 (Cancelled), integral with a plate a<1> which terminates opposite to a fixed but adjustable edge i<1> of a plate l to provide a slit whose width varies in accordance with the sounds and which is arranged in the path of a beam from a source h to a slot g<0> in front of the film i. This subject-matter does not appear in the Specification as accepted.
Patent GB-815430-A (GB)
Title: Improvements relating to the construction of electrical semiconductor components
IPC: H01L21/50
Filed: 1957-10-17
Abstract: 815,430. Semi-conductor devices &c. COMPAGNIE FRANCAISE THOMSON HOUSTON. Oct. 17, 1957 [Oct. 19, 1956], No. 32478/57. Class 37. An electrical lead 4 to a semi-conductor element 3 with a glass bead 6 is sealed to a glass envelope 1 enclosing the device by means of a heating coil 9 while another lead 2 connected to semi-conductor element 3 is cooled by fluid 8 flowing through copper container 7 so that element 3 is not damaged by heat. The semiconductor element may consist of silicon or germanium, and lead 2 of copper-clad ferro-nickel wire.
Patent GB-396259-A (GB)
Title: Improvements relating to alternating electric current motors
IPC: H02P1/26
Filed: 1932-12-23
Abstract: 396,259. Induction machines. DOREY, E. W., Avenue Chambers, Vernon Place, Southampton Row, London. Dec. 23, 1932, No. 32563. [Class 35.] In a motor having an auxiliary primary winding with a series connected condenser, this auxiliary circuit is conductively connected to the supply during starting but is short-circuited for normal operation. In the form shown, the terminals 4, 5 of the auxiliary circuit 2, 3 are connected across the main winding 1 or a portion thereof during starting but are subsequently disconnected from winding 1 and connected together directly as shown in Fig. 4 which represents the primary of a threephase machine. The change may be effected by a centrifugal switch or a mechanism dependent on the magnitude or phase of the current in the main or auxiliary winding, and the auxiliary circuit may also include an inductance or resistance. The main and auxiliary windings may be in the same or different slots.
Patent GB-264476-A (GB)
Title: A process for the distillation of oils occurring in the petroleum, tar and similar industries more particularly for the production of lubricants
IPC: C10G7/00
Filed: 1926-12-23
Abstract: 264,476. Steinschneider, L. Jan. 15, 1926, [Convention date]. Hydrocarbons, distilling; separate heater and evaporator apparatus.-In distilling oils such as petroleum or tar oils to obtain lubricating oils, decomposition products such as permanent gases and unsaturated hydrocarbons obtained in heating the oil are removed before the heated oil passes into the main distillation apparatus. Oil is circulated by a pump 8 through a container 1 heated by a burner 6, and a still 3 which may be heated by the waste gases from the burner 6. Vapours evolved in the container 1 pass to a condenser 14, and those evolved in the still pass through dephelgmators 21, 22 and a final condenser 27. The pressure in the apparatus may be reduced by an air pump operating through a pipe 29, and the container may be maintained under higher pressure than that in the still 3 by partially closing valves 31, 32. Steam may be injected into the container 1 and the still 3 by pipes 33, 37. Instead of being heated in the container 1, the oil may be heated by passage through a pipe still, and be discharged into the container 1 or into a baffled vapour-separating chamber, down which it flows. The residue from the still 3 may be passed into a second similar apparatus and the circulating pump 8 may be omitted. The oil, after passage through a heated coil, may be passed in succession through vapour separating chambers evacuated by separate air pumps to obtain successively lower pressures. The pump evacuating the later chambers may discharge into the suction side of the pump evacuating the first chamber. Pressures as low as 5 mm. of mercury may be used in later chambers.