baber/WOPTO huggingface dataset:
Patent GB-298502-A (GB)
Title: Improvements in or relating to perambulator and like brakes
IPC: B62B5/04
Filed: 1927-07-07
Abstract: 298,502. Co-operative Wholesale Society, Ltd., and Evans, G. E. July 7, 1927. Locking by frictional detents. - A brake for perambulators comprising a shoe b to engage one of the wheels and an operating arm and means for holding the arm in the. " on " or " off " position, is provided with a toothed rack n and the operating arm m is flexed laterally so as normally to engage the teeth of the rack. The brake shoe b is adjustably held on one end of a spindle f by a set screw g. The spindle f is carried in a bracket j secured to a longitudinal frame member and is surrounded by a return spring k. To the other end of the spindle f the arm m is riveted and extends through the slotted bracket n secured to the back axle. The arm m is given a twist out of the vertical in order to engage the rack.
Patent GB-1208866-A (GB)
Title: Process for the production of unsaturated esters
Inventor: WRIGHT DONALD
IPC: C07C69/145
Filed: 1967-03-29
Abstract: 1,208,866. Primary unsaturated esters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Feb., 1968 [29 March, 1967; 19 April, 1967], Nos. 14310/67 and 18008/67. Heading C2C. Primary unsaturated esters are produced by contacting an alpha-olefine containing at least four carbon atoms and incorporating the structure -C-C = CH 2  with a palladium salt in the presence of a carboxylic acid, carboxylate ions additional to any provided by self-ionization of the carboxylic acid, molecular oxygen and a redox system, either under anhydrous conditions or, in the presence of at most 20% by weight water, the carboxylate ion concentration being at least 0À2 mole per litre, the reaction medium being essentially free from halide ions. Examples describe the preparation of vinyl ester 2-acetoxyoctene-1, dioctenylphthalate and octenyl hydrogen phthalate.
Patent GB-992163-A (GB)
Title: Improvements in or relating to the polymerization of formaldehyde
IPC: C08G2/00
Filed: 1963-05-07
Abstract: Formaldehyde is polymerized using as a polymerization initiator a metallic derivative of a lactam having the general formula <FORM:0992163/C3/1> where Me is an alkali metal and R is a linear or branched hydrocarbon chain.  Of the suitable lactams mentioned caprolactam and valerolactam are exemplified.  The polymerization initiators are dispersed in organic solvents inert to formaldehyde and of those listed n-hexane and ethyl ether are exemplified. Methods for preparing formaldehyde are mentioned, which are known per se. The resultant formaldehyde is dried before introducing into the organic solvent containing the polymerization initiator.  The reaction may be effected in the presence of air. The polyformaldehyde precipitates as it is formed as a fine white granular powder. Stabilizing agents, antioxidants, fillers and dyes may be incorporated into the formed polymer before transforming it into threads, and moulded and extruded articles.
Patent GB-546144-A (GB)
Title: Improvements in or relating to the moulding of windows, doors and like structures from concrete or other mouldable material
IPC: B28B7/24
Filed: 1940-12-27
Abstract: 546,144. Moulding windows, doors, manholes &c. GOUGH, W. F. Dec. 27,1940, No. 18152. [Class 87 (ii)] [Also in Group X] Relates to moulding windows, doors and like structures of the kind comprising. an open frame member and a relatively movable member for closing the opening in the frame member. According to the invention the mould is shaped to form the member in a nearly shut position relative to one another, and is divided into two parts by a thin stiff partition conforming to the abutting surfaces of the two members. In Fig. 1, the partition 14, of thin sheet metal, has a corrugation 16 which strengthens it and which, when concrete is poured either simultaneously or successively into the two spaces defined by the partition, moulds complementary weatherexcluding steps on the outer (frame) member and inner (movable) member. The partition is secured at its lower edge by pins 15 on the outer mould part 12, which pins pass through holes in the partition and in the mould base 12, and at its upper edge by (a) notched bridging members 17, or (b) tongues 31, Fig. 4, which extend from the upper edge and are secured to the mould. The upper edges, instead of being supported, may be strengthened as by doubling over or by securing or fitting thereon strips. The mould shown is for making rectangular windows, and has six partitions, one at each side and two each in the base and top, the partitions in the base and top each extending halfway along (from the sides to the hinges 19) and being oppositely corrugated. The window may be hinged at the side but as shown is hinged at its centre, and opens only in the direction of the arrow. The hinges are supported in the mould and are set in the concrete during moulding. To provide the necessary clearance at the hinges, wedgeshaped core members 21 are clamped in position by bolts 25, the adjacent ends of the partitions 14 being supported at their upper edges by engaging recesses in the cores. To provide a groove in the movable member, a strip 27 is secured to the partition. In Fig. 4, a groove in the frame member is suppressed in the movable member by the use of a filling piece 30. If a groove is to be formed in two abutting faces, one groove is formed by a local thickening of the partition and the other by a strip of clay or the like. Fig. 7 shows a modification in which a thicker partition is used, the members being moulded in the slightly open position.
Patent GB-690054-A (GB)
Title: A new or improved carton and a blank therefor
Inventor: BUCKHURST ARTHUR CHARLES
IPC: B65D5/42
Filed: 1950-07-20
Abstract: 690,054. Cartons; packing. BRITISH CELLOPHANE, Ltd. July 19, 1951 [July 20, 1950], No. 18193/50. Classes 18 and 94(i) A carton in the form of a triangular prism is formed from a single blank 11. A sheet of wrapping material is placed on the blank, the contents placed on the sheet, and a further sheet placed on the contents. Two sides 16, 17 are folded up at right angles to the base 12 and their flaps 20, 22 folded over the contents and interlocked. The side 18 is folded up and its flap 21 locked with the flaps 20, 22. The carton may have apertures to reveal the contents, the sheets being transparent.
Patent GB-791167-A (GB)
Title: Improvements in or relating to electrical resistors
IPC: C04B35/01
Filed: 1955-06-23
Abstract: 791,167. Temperature sensitive resistors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 23, 1955 [June 26, 1954], No. 18200/55. Class 37. A sintered electrical resistor consisting of oxidic compounds with Perovskite structure contains Fe and/or Cr, or Co and Fe and/or Cr, at least one of these metals occurring in trivalent and tetravalent form. Manganese in tetravalent form may also be included, and also Al, Ti and/or Ni up to 20 per cent of the total of Fe, Cr, Co and Mn. A flux such as copper oxide, zinc oxide, clay and glass may also be added. The combination of trivalent and tetravalent forms of the metals Fe, Cr and Co may be achieved by the use of a mixture of trivalent metals (such as yttrium, lanthanium, praseodymium, neodymium), and bivalent metals (such as Ca, Sr, Ba, Pb and Cd) for the large metal ions designated by A in the Perovskite structure general formula ABO 3 . A large number of examples of such compositions are given in the specimen. As one example a mixed crystal of LaFe<SP>3</SP>+O 3  and SrFe<SP>4</SP>+O 3  is formed by sintering in air La 2 O 3 , SrO and Fe 2 O 3  at temperatures between 1250 and 1400 C. The material may be obtained from the composing oxides in the form of double oxides, carbonates or other compounds. The constituents are ground, mixed to a paste, for example with an organic binder, shaped and sintered in an oxygen atmosphere. The material possesses a high temperature coefficient and low resistivity.
Patent GB-1288142-A (GB)
IPC: C09B19/00
Filed: 1970-04-16
Abstract: 1288142 Basic oxazine dyestuffs FARBWERKE HOECHST AG 16 April 1970 [17 April 1969] 18205/70 Heading C4P The invention comprises basic oxazine dyestuffs of the general formula wherein R is C 1 -C 4  alkyl; R 1 , R 2  and R 3  are optionally substituted C 1 -C 4  alkyl and R 1  and R 2  together with the N atom may form a hetero ring, e.g. morpholino or piperidino, alk is alkylene preferably containing 1-4 carbon atoms, X is halogen, CN, trifluoromethyl, acyl, carboxylic acid ester or amide, alkyl- or arylsulphone, optionally substituted sulphonic acid amide, acyloxy, acylamino, -NHSO 2 R 4  (R 4  = alkyl or aryl), carbamic acid ester, urea or dicarboximido; and A# is an anion, e.g. zinc chloride, chloride, hydrogensulphate or dihydrogen phosphate. They are prepared by reacting a p-nitroso compound of the formula ONC 6 H 4 N(R 3 )alk-X with an amino-phenol of the formula in which formulae R, R 1 , R 2 , R 3 , alk and X are as above in an acid medium preferably at 20- 120‹ C. The dyes give blue and greenish-blue shades on tannined cellulose, silk, leather, acetate rayon, polyamides and polyesters, polyvinylidene cyanide and polyacrylonitrile.
Patent GB-848057-A (GB)
Title: Treatment of polyvinyl chloride latices
IPC: C08F6/00
Filed: 1959-05-28
Abstract: Unreacted monomer is extracted from an aqueous latex of a vinyl chloride polymer (or copolymer containing at least 80 wt. per cent vinyl chloride) with at least 0,5 volumes of an agent comprising a major proportion of water-immiscible aliphatic hydrocarbons to yield an aqueous raffinate comprising the latex and a hydrocarbon extract comprising the monomer.  Preferred hydrocarbons are substantially saturated fractions boiling between 50 DEG  and 200 DEG  C. e.g. a 75 DEG -100 DEG  C. straight run gasoline.  The extraction temperature is preferably 60 DEG  to 90 DEG  C and may be effected by treating a batch to repeated extractions or continuously in counter-current. The monomer-freed aqueous phase may be subsequently coagulated or spray dried.  In a preferred embodiment the hydrocarbon is mixed with water containing an electrolyte to effect simultaneous extraction and coagulation, the polymer coagulated in the aqueous phase passing into the hydrocarbon phase from which it may be removed by settling, decanting, filtering or centrifuging.  Electrolytes specified are calcium formate, sodium chloride, and dilute sulphuric, nitric, phosphoric, acetic and formic acids.  The aqueous phase after coagulation preferably has a pH of 2 to 4.  To aid phase separation agitation should be moderate (e.g. not more than 150 r.p.m.).  The bulk density of the separated polymer is improved by subjecting it to a steam treatment wherein the temperature is increased to at least 75 DEG  C. in a short period (e.g. within 15 minutes).  The steam treatment may be applied simultaneously with centrifuging.  In examples a latex obtained by emulsion polymerisation of vinyl chloride using a fatty acid soap (potassium laurate) as emulsifier and hydrogen peroxide as initiator is treated by both separate and simultaneous extraction and coagulation and the effect of variations in treating temperature and agitation and of subsequent steam treatment is illustrated with reference thereto.
Patent GB-1467144-A (GB)
Title: Female urinary guide device
IPC: A61F5/455
Filed: 1974-04-25
Abstract: 1467144 Female urinary guide device HOLLISTER Inc 25 April 1974 18224/74 Heading A5R A female urinary incontinence device comprises a tube 14 having a flange 12 of deformable material extending radially outwardly from the tube at one end of the tube, the flange being of uniform thickness and taking the shape of a shallow dish with the tube extending outwardly of the dish from the bottom thereof, the flange having an ovalshaped, generally planar rim which has a length in the range of 3.5-5.0 cm. and a width in the range of 1.0-2.5 cm. and the dish having a maximum inside depth in the range of 0.2-0.6 cm., the flange of the device being thus shaped so that the flange is positionable in the female vestibule over the urethral opening with opposite side portions of the rim between the bases of the labia minora, with front and rear portions of the rim between the clitoris and the vaginal opening, with the tube extending outwardly between the labia majora for drainage of urine from the urethral opening and with the labia minora overlying the rim so that the device is normally retained solely by the labia. The device is preferably moulded integrally from a soft plastics material and is fitted to a tube, connectable to tube 14, which contains a non- return valve and connects the device to a vessel for receiving the urine, which vessel may be strapped to the leg of the user. Where the device cannot be retained by the labia alone a band traversing the vaginal opening may be used to hold the device in position.
Patent GB-150157-A (GB)
Title: Improvements in kilns
IPC: C04B2/12
Filed: 1919-07-23
Abstract: 150,157. Somerville, W. July 23, 1919. Shaft kilns.-A lime or like kiln is provided with air-inlets m above the fire and with one or more uptakes f communicating with the interior of the kiln below the burning zone, the draught being downwards, whilst the CO2 or other gases pass away through the uptakes f, draught being induced by air which enters at the foot of the kiln and is heated by the hot lime before entering the uptakes. Induced or forced draught may be used to assist in carrying off the CO2. In the kiln shown, annular chambers c, d are connected to the uptakes f and communicate with the interior of the kiln. An uptake g is provided at the top of the kiln for use when starting the fire, after which it is closed by a damper h.
Patent GB-313324-A (GB)
Title: Improvements in travelling horse boxes, vans or like covered vehicles
IPC: B60P3/04
Filed: 1928-06-25
Abstract: 313,324. Vincent, W. J., and Vincent, H. E. R. June 25, 1928. Bodies.-In travelling horse boxes, vans and like covered vehicles for the transport of live or dead loads the bodies or the side and end walls thereof are constructed of plywood or laminated boards of such strength and dimensions that when assembled and secured together at the corners they form a construction strong enough for all practical purposes and require practically no framing or similar reinforcement. As shown, the sides c and end d consist of plywood or laminated boards connected together at the corners and to the roof by angle plates e, e<1> without framing. The roof and floor may be of ordinary construction but the doors may be made of plywood. The superficial measurements of the boards correspond with that of the sides and ends for which they are intended. The fore peak h may be attached to the roof by angle plates e'.
Patent GB-1003959-A (GB)
Title: Crossed-field electron discharge tube apparatus
IPC: H01J25/55
Filed: 1962-04-24
Abstract: 1,003,959. Magnetrons. S-F-D. LABORATORIES Inc. April 24, 1962 [April 26, 1961], No. 18456/64. Divided out of 1,003,958. Heading H1D. The subject-matter of this Specification is the same as that of Specification 1,003,958 but the claims relate to the cooled lossy member adjacent the tips of the anode vanes.
Patent GB-118214-A (GB)
Title: Improvements relating to the Delivery of Parcels and other Goods at House and like Doors.
Inventor: GREENE MATILDA HENRIETTA
IPC: A47G29/14
Filed: 1917-12-13
Abstract: 118,214. Greene, M. H., and Ellingham, H. A. Dec. 13, 1917. Receiving-devices for doors. - A house or like door a, Fig. 1, is provided with a receiving-device for goods and parcels comprising a receptacle c, which is supported on a bracket f and is arranged opposite a verticaly-sliding shutter d adapted to close an opening b in the door. The shutter d is adapted to be secured in its closed position by a pivoted catch l engaging a projection h on the shutter. The catch l is arranged to hold the projection h above its locking position unless the shutter d is forcibly depressed by means of a knob k. In a modification, the shutter d is locked in its closed position by a bolt l<1>, Fig. 6, acted upon by a spring l<6>. When a spring-controlled retaining-piece l<8> is moved aside by hand, the knob l<7> of the bolt is released, thus enabling the spring l<6> to turn the bolt and to press it into its locking position.
Patent GB-613389-A (GB)
Title: A device for admitting fuel for priming or the starting of internal combustion engines
IPC: F02N99/00
Filed: 1946-06-20
Abstract: 613,389. Manually-actuated valves. ENFIELD CYCLE CO., Ltd., and NOSSITER, C. F. June 20, 1946, No. 18504. [Class 135] [Also in Group XXVII] A device for admitting fuel for priming internal-combustion engines at starting, comprising a body part adapted to screw into a tapped aperture in the cylinder head, a screwthreaded plug valve adapted to screw therein, a ball or equivalent head on the valve adapted .to co-operate with an equivalent seating in the body part and an axial passage through the plug connecting with a transverse passage leading into a clearance between the valve and the body part of the device has a nipple similar. to those used as oil or grease nipples at the extremity of the axial passage. As shown, a body part a is threaded at a<1> into the cylinder head or a member of the cylinder head. An externally-threaded plug valve e is screwed into the body part and has a ball end e<2> co-operating with a seat a' in the body part. A passage e<4> in the plug valve communicates by transverse passages with a space e<6> surrounding the reduced end a<3> of the valve. A nipple e<5>, similar to an oil or grease nipple is provided at the outer end 'of the valve, which may include an inwardly-opening spring-pressed valve. Fuel may be injected into the cylinder by the application of a lubricating oil gun to the nipple.
Patent GB-811091-A (GB)
Title: Improvements in or relating to bistable trigger circuits
IPC: H03K3/313
Filed: 1957-06-12
Abstract: 811,091. Semi-conductor circuits. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 12, 1957 [June 22, 1956],No. 18519/57. Class 40 (6). [Also in Group XXXVII] A circuit which becomes conductive when an A.C. supply voltage applied thereto exceeds a first value and becomes non-conductive when it falls below a second value includes a transistor having its emitter-collector path connected in series with a load across the supply and voltage responsive means which prevents base current flow when the applied voltage is below a predetermined value. In Fig. 1 an A.C. voltage is applied to terminals 14, 15 with the result that the capacitor 3 charges through the leakage resistance of the transistor 4 with the polarity shown. If the voltage of the supply is sufficient the capacitor voltage reaches a value at which a zenner diode 8 breaks down causing the transistor to become more conductive. On the positive half-cycles a capacitor 13 is charged while on the negative half-cycles the supply voltage and the voltage across capacitor 13 act in series and current flows through the transistor to further charge capacitor 3. This continues on successive negative half-cycles progressively charging capacitor 3 until its voltage reaches a limiting value exceeding that of the supply. The transistor is now highly conducting and sufficient current flows to operate a relay 10 or a power transistor connected in its place. If the A.C. supply voltage is decreased the charge across capacitor 3 progres. sively decreases on successive half-cycles until the transistor becomes non-conductive again. The voltage of the supply at which this occurs is less than that at which the transistor became conductive by an amount dependent upon the value of a resistor 9. The change-over from conducting to non-conducting states of the transistor takes an appreciable number of cycles dependent upon the magnitude of the voltage and accordingly the switching time has an approximate inverse time/voltage characteristic.
Patent GB-397279-A (GB)
Title: Improvements relating to the production of alternating modulated, signal tone or like currents
IPC: H02K39/00
Filed: 1932-06-30
Abstract: 397,279. Inductor alternators. JONES, W. and MOLE, F. H., Charlton Works, Newlands Park, Sydenham, London. June 30, 1932, No. 18547. [Class 35.] Machines with two or more armatures.-An alternator producing currents of different frequencies for giving several sound tones, comprises inductor alternator sections with rotors mounted on a common shaft, one or more sections being excited by an alternating-current of a lower frequency and one or more by continuous-current or a permanent magnet, the output from each section being supplied to the appropriate sound tone circuit. The sections A, C supplying telephone signal tone currents of frequency 400 and 33 for the " Busy " and " Dial " tones are excited by continuouscurrent and the section B supplying current at a frequency of 133 modulated to 16.6 for the " Ringing " tone is excited by a current of 16.6 cycles obtained from a separate source or from a rotary transformer or converter E which serves also as the driving motor. The section giving the modulated current may have both continuous and alternating-current excitation or alternating-currents of different frequencies may be used simultaneously.
Patent GB-385541-A (GB)
Title: Improvements connected with metal teapots and like vessels
IPC: A47G19/14
Filed: 1932-07-01
Abstract: 385,541. Teapots &c. LONDON ALUMINIUM CO., Ltd. and LEEDER, W. J., 57, Westwood Road, Witton, Birmingham. July 1, 1932, No. 18612. [Class 66.] The lugs 5, 6, which are curled over to form the fixed part of the hinge for the lid 8 of a teapot or like vessel are formed integral with the top portion which, with the body wall, is pressed or spun from a single piece of metal, a ledge 7 being formed for the lid to seat on.
Patent GB-697423-A (GB)
Title: Hydraulic machine for operating on tubes
IPC: B21D26/033
Filed: 1951-08-08
Abstract: 697,423. Tube expanders. HYDROPRESS, Inc. Aug. 8, 1951 [Aug. 11, 1950], No. 18657/51. Classes 83 (ii) and 83 (iv). [Also in Group XIX] Stamping.-In a hydraulic machine for belling, expanding or testing tubes, the tube is supported in a plurality of openable dies, which surround the tube, and is belled by fixed and movable tools which also seal the ends of the tube. The tubes may be inserted into the machine by hydraulically actuated pivoted arms and aligned with the dies by hydraulic jacks. The tube is supported by similar tool heads 46 one of which is fixed and one movable by an electromotor. Each head comprises a hydraulic ram 43 carrying a tool 18 with a seating ring 47, a packing ring 50 to which hydraulic pressure may be applied and a belling ring 51 which may be slotted for the admission of hydraulic pressure. The tube is surrounded by split dies 23, 24 closed about the tube by a cylinder 27. Blocks 33 are lowered by a cylinder 34 to lock the dies. The tube is centralized in the die by spring-urged pins. Some of the dies house the tube lifting jacks. The end dies have an axial locking device engaging the frame to prevent end movement and alternate dies are fitted with blocks to engage a closed die to lock them against axial movement. In operation, the ends of the tubes are closed by the tools 18 and pressure is applied to the ram 43 to seal the end of the tube and to effect belling. Pressure through a channel 59 expands the tube to the internal diameter of the dies. To provide a follow-up mechanism due to the shortening of the tube hydraulic pressure is exerted on the end of the ram 43. Excessive follow-up for small tubes is avoided by decreasing the effective area of the ram by securing non- pressurized extensions 61 on the ram. Rings on the dies, Fig. 10, not shown, strip a belled tube which has not been expanded. For testing purposes the dies are opened to allow the tube to be supported by the jacks and hydraulic pressure is applied.