baber/WOPTO huggingface dataset:
Patent GB-316214-A (GB)
Title: Device for checking and gauging the pressure in the air chambers of wheels mounted on pneumatic tyres
IPC: B60C23/00
Filed: 1929-06-19
Abstract: 316,214. Compagnie Industrielle et Commerciale du Cycle et de l'Automobile, (Assignees of Dunois, C.). July 25, 1928, [Convention date]. Grant of Patent revoked. Pneumatic - tyre pressure gauges.-The cap for the inflating nozzle of a pneumatic tyre it fitted with a spring valve, and a separate pressure gauge is adapted to co-operate therewith so that the pressure in the inner tube may be taken without unscrewing the cap. The cap 1 is provided with a. valve 3 pressed on a seating 5 by a spring 4. A sleeve 6 forms a guide for the valve stem and an abutment for the spring. The pressure gauge is tubular and provided at one end with a knurled head 10 screwed on the body 12 and provided with a packing bush 13. A disc 18 forms' the bottom of the tube 12 and is provided with a valve depressor 19. One end of a spring 17 is secured to the disc 18, the other end being secured to the part 14 of a piston 16 provided with a packing 15. A second piston 21 loose from the piston 16 has a graduated stem 22 which passes through the end 23 of the gauge. To use the device, the part 10 is pressed down on the valve cap, the depressor 19 depressing the valve 3 and this in turn the usual valve stem 9, the compressed air passing into the gauge via a hole in the depressor 19. The spring is extended and the pressure indicated by the rod 22, the piston 21 moving with sufficient friction to hold the reading after the group is removed from the valve cap.
Patent GB-414888-A (GB)
Title: An improved anchor
IPC: B63B21/44
Filed: 1933-07-04
Abstract: 414,888. Anchors. TAYLOR, A. C., 15, Vallis Way, Ealing, London, and NASH, A. J., 26, Second Avenue, Gillingham, Kent. July 4, 1933, No. 18928. [Class 113 (i).] In an arrangement for securing together the tripping-slab and the fluke arms of an anchor, the tripping-slab comprises two similar plates with recesses E, F which permit the plates to be slid over one another from opposite sides to embrace the recessed intermediate part in G of the flukes A, B. The two plates are then riveted together. The flukes, which are separated at their heads by the distance piece N, are further secured by the transverse bolt D.
Patent GB-1223255-A (GB)
Title: Sulphation process
Inventor: SOWERBY AUSTEN EDGAR
IPC: C07C303/24
Filed: 1967-04-25
Abstract: 1,223,255. Sulphation of secondary aliphatic alcohols. MARCHON PRODUCTS Ltd. 11 April, 1968 [25 April, 1967], No. 19025/67. Heading C2C. [Also in Division C5] Monoalkyl sulphate salts of saturated secondary aliphatic alcohols having at least 8 carbon atoms are prepared by the addition of free SO 3  in an amount sufficient to react with from 20-80%, or preferably 50-70%, of the alcohol but insufficient to cause substantial dehydration of the alcohol or charring in the reaction mixture under the conditions employed, neutralizing the reaction mixture with a base, which may be an alkali-metal hydroxide, an alkanolamine or NH 3 , and separating the unreacted alcohol from the salt of the alkyl sulphate. The separation of unreacted alcohol may be effected by solvent extraction, preferably counter-current extraction, using a mixture of low boiling petroleum ethers and the alcohol may be recycled to the sulphation zone. The sulphur trioxide may be employed in the form of a gas and may be mixed with an inert gaseous diluent.
Patent GB-530197-A (GB)
Title: Improvements in or relating to contact systems for electric circuit interrupters
IPC: H01H9/38
Filed: 1939-06-30
Abstract: 530,197. Arc-rupturing in switches; switch contacts. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 30. 1939, No. 19043. Convention date, June 30, 1938. [Class 38 (v)] Rigid contact blocks 21, 23 carry main fixed contacts which are adapted to be bridged by a member 71 which is spring-mounted on a contact arm 65 on an arm 67 pivoted at 99. A flexible lead 91 is screwed at 95 to member 71 and at 83 to a rigid conducting block 73 carrying contacts 85, 87 which cooperate with contacts 31, 33 on a further rigid conducting plate 29. A flexible loop 57 connects plate 29 to a terminal block 13 connected to block 21 and is located between side walls 37 and an end wall 39 of the plate 29. A pin 41 passing through the walls 37 engages at each end in a slot 43 in a guide bracket, and an extension 63 of each of the latter is engageable by a lateral projection 61 on each side wall. When the arm 65 is rotated clockwise to open circuit, contact 71 separates from 21, 23, but springs 47, 51 cause plate 29, aided by the electro-dynamic effect of loop 57, to follow the arm 65 until pin 41 reaches the end of slot 43, whereupon 85 separates from 31. The circuit is finally opened at the arcing-contacts 33, 87 when the projections 61 subsequently engage extensions 63. Springs 47 are insulated from conducting parts by insu- Lation 55 and spring 51 engages the base 11. An insulating plate 62 protects the main contrasts from damage by arcing at the auxiliary contacts, and for higher ratings, two members 71, each with its conductor 91. may be arranged in parallel. The strength of springs 79 is such that the member 71 will be blown off magnetically at a value of current which is in excess of the tripping current but is not large enough for the contacts to be damaged by any arc that may be drawn thereat. The current is thus partly shunted through the auxiliary contacts and conductor 91, which maintains the member 71 in the open condition for all current-values in excess of the pre-determined values. Automatic circuit-breakers. The lower end of shunt 91 is connected, along with block 23, over an overload coil 123 to the lower terminal, and arm 67 is biassed " open by springs 125. An actuating lever 103 pivoted to the frame at 105 is linked at 107 to arm 67 and carries a latch 113 engaging, a roller 1.17 on an operating member 109 also pivoted at 105. Member 109 is in turn retained by a latch 119 engaging roller 117. A trip lever 121, when actuated, releases the latch 113, contacts and lever 103 move to open position, regardless of the position of member 109, during which movement 103 releases latch 119 which releases 109. To reclose, the latter is moved anti-clockwise to reset 113 and then clockwise until relatched by 119.
Patent GB-837775-A (GB)
Title: Improvements in hydraulic constant speed devices
Inventor: PEASTER BERTRAM ANTHONY
IPC: F16H61/472
Filed: 1957-06-18
Abstract: 837,775. Swash plate pumps. INTEGRAL Ltd. May 29, 1958 [June 18, 1957], No. 19171/57. Class 102(1). [Also in Group XXIX] The speed of a hydraulic motor driven by the liquid delivered by a multiple plunger pump which may be connected e.g. to an aircraft engine for driving an alternator coupled to the hydraulic motor, is maintained constant by means comprising spill valve sleeves associated with the pump plungers and movable to vary the effective delivery strokes of the plungers by a servo piston which is exposed on its opposite sides to the delivery pressure of the pump and to the pressure in an outlet conduit from the pump delivery line controlled by a leakoff valve, this leak-off valve being responsive to a variable hydraulic signal pressure representative of the speed of the hydraulic motor. The hydraulic motor 2 coupled to the alternator 3 is driven by the liquid delivered by a swashplate pump 1 having hollow plungers 9, 10 which receive liquid through inlet ports in the pump cylinders 90 at the end of their suction strokes. Spill ports 12 in the plungers, through which liquid is spilled during a variable part of each delivery stroke, are controlled by movable valve sleeves 24 connected through a spring loaded plate 15 to a servo piston 18. This piston is subject on one side to the pump delivery pressure through passage 118 and on the other side to the pressure of controlled liquid supplied to a conduit 19 through a restriction 20. An open end of conduit 19 is obturated by a hinged half ball leak-off valve 8 which is subject in one direction to the force of a loading spring 28 plus a datum pressure from an outlet 6 of the hydraulic motor and in the opposite direction to'the pressure in a signal conduit 5 connected to the peripheral discharge chamber of an impeller 4 which takes its suction from the motor outlet 6. The half ball valve is biased towards the closed position by a differential area piston 23 subject on opposite sides to the pump delivery pressure through a pipe 27 or alternatively to the pressure from conduit 19. On a rise of motor speed above that determined by loading spring 28, the pressure in conduit 19 is reduced and servo piston 18 causes the sleeves 24 to move to the right, thus reducing the effective delivery stroke of each plunger to restore the predetermined speed. Conversely on falling speed, the pump delivery is increased. Specification 820,417 is referred to.
Patent GB-147178-A (GB)
Title: Improvements in drilling or sowing machines
IPC: A01C7/18
Filed: 1920-07-07
Abstract: 147,178. Julien, C. E. P. Dec. 20, 1916, [Convention date]. Moving-chamber apparatus; for granular material.-A seed drilling or sowing machine comprises hoppers with spring-controlled slide valves to discharge the contents. The slides 10 work beneath apertures 8 in the seed or manure hoppers 5 and are provided with corresponding apertures 9. The apertures 8, 9 are of the conical shape shown. The levers 7 working the slides are rocked by pins 3 on a disk or wheel 1 rolling on the ground. Fig. 5 shows a modification in which the seeds are delivered into cavities 15 in the disk 1. The pins 3 may be detachably and adjustably mounted, and the levers 7 may be held away from them to suspend the sowing. The thickness of the plate 10' may be varied according to the seeds and quantities to be sown. Several apertures or cells may be formed in the slide to permit of simultaneous distribution of seeds and manures.
Patent GB-1291341-A (GB)
Title: Process for the removal of hydrogen fluoride from waste gases
Inventor: PETER ARMIN
IPC: B01D53/68
Filed: 1970-04-22
Abstract: 1291341 Gas purification-hydrogen fluoride CHEMIEANLAGENBAU LEIPZIG VEB 22 April 1970 19263/70 Heading C1A A process for the removal of hydrogen fluoride from the effluent gases from a cement kiln in the manufacture of cement and sulphuric acid from phosphorus gypsum (i.e. fluorineontaminated calcium sulphate derived from wet process phosphoric acid plant) comprises washing the effluent gases in a washing tower with water to which phosphorus gypsum has been added before the water enters the tower. HF is thereby precipitated as calcium fluoride which may then be discharged from the washing tower in the form of a sludge. The wash water also serves to cool the gases, and after removal from the wash tower may be cooled in a trickle cooler fed by water recycling through a cooling tower. After a further addition of phosphorus gypsum, the cooled washing water may be recycled to the wash tower.
Patent GB-459298-A (GB)
Title: Manufacture of lacquers or varnishes
IPC: C09F1/04
Filed: 1935-07-09
Abstract: Lacquers or varnishes are made from the compounds, consisting mainly of anhydrides of abietic acids, obtained from colophony or similar resins, or from pure abietic acid, by treatment with acetic anhydride.  According to examples: (1) abietic acid anhydride, obtained by heating 1 part of colophony with 3 parts of acetic anhydride, for 70 hours at 140 DEG  C. in a closed vessel, is dissolved in xylene and mixed with blown linseed oil; (2) the abietic acid anhydride of example 1 is melted and added, at 150 DEG  C., to boiled linseed oil.  The mixture is heated to 200 DEG  C. for half an hour, then cooled to 125 DEG  C. and mixed with a siccative containing lead, manganese, turpentine oil, and sangajol.
Patent GB-344320-A (GB)
Title: Improvements in and relating to heating systems
IPC: A21B1/14
Filed: 1930-06-25
Abstract: 344,320. Heating by circulation of fluids. BAKER PERKINS, Ltd., Hythe Road, Willesden, London. June 25, 1930, No. 19337. Convention date, Oct. 28, 1929. [Class 64 (ii).] In a heating system in which the heat of a furnace is transferred to a room, baking chamber, oven, or other apparatus by means of closed conduits containing a circulating liquid, e.g. Perkins tubes, the circulating liquid consists of one or more alkali metals in the liquid state. An alloy of sodium with 50-75 per cent of potassium is referred to. Higher temperatures with lower internal pressures may be obtained, than with water.
Patent GB-1174823-A (GB)
Title: Improvements in or relating to the production of Plastics Sheet
Inventor: SATO UNZO
IPC: B29C44/30
Filed: 1967-04-27
Abstract: 1,174,823. Moulding expanded plastics sheet; foamed laminates. U. SATO. 27 April, 1967, No. 19343/67. Headings B5A and B5N. An expandable thermoplastic sheet, e.g. which may be a cellular structure produced by extrusion, may contain a foaming agent, and may comprise a polymer of styrene and its derivatives, vinyl, olefin, acryl, aldehyde or cellulose derivative, is respectively continuously introduced into and from a steam chamber 1 by pinch rolls 6 and 7 and through which chamber 1 it is conveyed between adjustable endless fluid permeable means, e.g. inclined metal belts 9, and subjected to a steam pressure of 1-2 to 3À2 kg/cm<SP>2</SP>, whereby it is expanded, e.g. to 7-8 times the original thickness. The expanded sheet is conveyed through a cooling zone 13 by similar parallel belts 12 wherein it is subjected to a blast of cold air or other medium from pipes 14. Steam is delivered to the chamber 1 from a valved blow-in pipe 5 and is evenly distributed therein via transversely and longitudinally extending slots extending from passages containing electric, steam or other heating medium pipes. The metal belts may be provided with a plurality of slits or may comprise a blind of perforated plates, wire netting, round or square bars, or a belt of chain form may also be used. A laminated structure (Fig. 3, not shown) may be produced wherein layers of paper, fibre, metal foil or synthetic resin foil may be applied to one or both sides. The layers (16) are coated on one side with bonding agent by rollers (18) which agent is preheated by heaters (19). For laminated structures, the endless belts are replaced by rolls. Paper layers may subsequently be stripped from a laminar structure to provide a flat surfaced sheet.
Patent GB-569291-A (GB)
Title: Improvements in or relating to the manufacture of vinyl chloride
IPC: C07C17/25
Filed: 1943-11-19
Abstract: Vinyl chloride is manufactured by treating ethylene dichloride with an alkali in the presence of water and a compound of the general formula CH2(OH)CH2OR, where R is an alkyl group containing not more than four carbon atoms or an alkoxyethyl group in which the alkoxy radical contains not more than four carbon atoms.  It is preferable that the water and diluent should be miscible and that the reaction mixture be agitated by mechanical stirring, pumping through a coil or heating to a temperature near the boiling point of ethylene dichloride.  The amount of alkali should preferably be in at least a slight excess of the theoretical amount required for complete dehydrochlorination.  In the examples: (1) a solution of sodium hydroxide in a mixture of water and diethylene glycol monoethyl ether is passed down a column and heated while ethylene dichloride is passed in at the bottom.  Vinyl chloride is taken off at the top of the column, any unconverted ethylene dichloride also removed is recycled.  The spent solution passing out of the bottom of the column is distilled to recover ethylene dichloride and diethylene glycol monoethyl ether; (2) a solution of sodium hydroxide in a mixture of water and diethylene glycol monoethyl ether is circulated through a heated coil reactor and ethylene dichloride and aqueous caustic soda added slowly.  The vapours evolved are passed through a condenser and the condensate layer containing diethylene glycol monoethyl ether returned to the system as solvent for fresh caustic soda.  The circulating liquid is filtered through a bed of granite chips after removing the vapours and returned to the coil.
Patent GB-1086195-A (GB)
Title: Improvements in or relating to apparatus for the dry cleaning of materials
IPC: D06F43/08
Filed: 1964-09-11
Abstract: 1,086,195. Dry cleaning apparatus. I. VICTOR and O. VICTOR, [trading as RESEARCH DEVELOPMENT CO.] Sept. 11, 1964 [Sept. 13, 1963], No. 19430/67. Divided out of 1,086,194. Heading D1A. Apparatus for dry cleaning and recovering the solvent used therein comprises a combined washer and drier 10, a container 22 to supply a volatile dry cleaning solvent thereto, means for cooling and means for reheating the interior of 22, and a blower 44 in a closed circuit which includes 10 and 22 for circulating vapours therein. Washer/drier 10 is supplied with cleaning solvent from 22 and surfaceactive agent from 28. Soiled solvent is discharged into container 16. Duct 34 extends in a closed loop between containers 22 and 16 and comprises right hand leg 36 containing filter 40, and left hand leg 38 containing reheating chamber 52 and blower 44. Washer/ drier 10, communicating with duct 34 by conduits 54 and 56, is in parallel with 16. A refrigeration system providing transfer and recovery of solvent includes refrigerant compressor 62, first condenser (heating heat exchanger) 64 in 16, second condenser 66 in reheating chamber 52 and evaporator (cooling heat exchanger) in 22. Direct hot gas conduit 92 from compressor 62 provides defrosting means for evaporator 68 when required. Appropriate valves are provided throughout the apparatus. In a single complete operation of the apparatus new or soiled solvent is initially present in 16 in a solid or semi-solid state and garments are placed in 10. Valves 20. 26, 58 and 60 are closed and 48 and 50 opened, while the refrigeration circuit is set with 80 and 94 closed and 76 and 84 open, placing condensers 64 and 66 in container 16 and reheating chamber 52 respectively in series relationship. Operation of fan 44 and compressor 62 causes transfer of heated solvent from 16 to 22, condensation of the solvent in 22 and return of the gas through 52 to 16 until sufficient solvent is collected as liquid in 22. Valve 26 is then opened and the garments are cleaned in rotating washer 10, if desired in the presence of surfactant from 28. Then, soiled liquid is drained into 16, valves 48 and 50 are closed, 58 and 60 are opened and valve 80 alone is opened in the refrigeration circuit to provide the drying circuit. Under these conditions the gas within the system is passed through the closed loop comprising 10, 22 and 52 and vaporised solvent continuously condenses round coil 68 in 22. Solvent solidifying on coil 68 is melted as necessary by hot refrigerant gas from 92; substantially all the solvent is thus recovered in 22 and is returned through the system to container 16. Volatile dry cleaning solvent compositions suitable for use with this apparatus are described and claimed in the parent Specification 1,086,194.
Patent GB-286961-A (GB)
Title: Means for giving warning of and preventing damage by excessive current in electric circuits
IPC: H01H71/00
Filed: 1927-07-22
Abstract: 286,961. Cousin, G. O. A. July 22, 1927. Controlling consuming devices. - The dynamo of an installation for use on a motor road vehicle normally supplies a battery through a protective arrangement, the circuit being: contact 7, bridging member 6, contact 8, distribution board A, fuse 5, pivoted contact member 1, and lead to battery. On the occurrence of a fault, the fuse 5 blows, and the member 1 turns under the action of a spring 2 to contact with a member C, the arm 1 carries with it the member 6 which then bridges contacts 7 and D<2>, so that the dynamo now supplies the battery through another fuse 16. If the switch member S is in contact with the member C, an auxiliary light Ph.S. is illuminated. This light can also be illuminated under normal conditions by turning the member S into contact with the member 1.
Patent GB-835264-A (GB)
Title: Aircraft navigation apparatus
Inventor: DOVE FRANK
IPC: G05D1/02
Filed: 1956-06-22
Abstract: 835,264. Automatic steering control systems. SPERRY GYROSCOPE CO. Ltd. June 22, 1956, No. 19492/56. Class 38 (4). In an aircraft automatic pilot a gyro compass controls steering in azimuth and also operates a repeater compass the shaft of which rotates a course-setting pointer the position of which relative to the shaft is adjustable by manual means which also prepare the automatic pilot to steer the course selected. As shown in Fig. 1, to operate a repeater compass, signals from an inductive pick-off 4 associated with an azimuth gyro 2 are applied through an inductive device 5 to an amplifier 6, the output of which energizes a servomotor 7 which, in driving the rotor of inductive device 5 to a null position, sets card 9 of the repeater compass so that the course of an aircraft carrying the equipment is indicated by a lubber line 10. To maintain the repeater compass in correspondence with a magnetic flux gate compass 32, signals from the latter are applied to the stator of an inductive device 33, the rotor of which moves with the repeater compass so that an output is produced to control the gyro compass in the event of misalignment between the two compasses. This misalignment is indicated at 37. For automatic steering of the aircraft in azimuth signals from a second inductive pick-off 22 associated with gyro 2 are applied through inductive devices 21 and 22c to control the automatic pilot 1. The course to be maintained is selected by a knob 12 adjusting the rotor of inductive device 21 and since knob 12 can only be operated if gears 14, 17 are engaged, a pointer 11 on a transparent dial 13 is also rotated to indicate the chosen course against dial 9. The opening of a switch prevents operation of servomotor 7 during adjustment of knob 12 and a brake (not shown) may hold shaft 8 of dial 9 in a fixed position while gear 14 frictionally mounted on shaft 8 is rotated relative to shaft 8. For initially setting up the apparatus the stators of inductive devices 5 and 21 are adjustable by a knob 39. In a modification knob 12 controls an inductive device, corresponding to inductive device 21, indirectly through a follow-up servomotor system which is normally de-energized so that knob 12 may be operated in advance to select a new course which the aircraft takes up whenever a switch is operated to energize the follow-up servomotor system. In a modification of this arrangement operation of the autopilot is dependent on the position of the repeater compass and the means preventing operation of the repeater compass when resetting course is dispensed with, but a component introduced in dependence on misalignment between the gyro and its repeater normally eliminates repeater compass errors. The follow-up servomotor system of this arrangement is provided with heavy negative feed-back to reduce response to transient errors of the repeater compass but which is limited so that the larger signals occurring during a course change are properly effective. Specification 835,265 is referred to.
Patent GB-265863-A (GB)
Title: Improvements relating to breech-loading fire arms
IPC: F41A9/55
Filed: 1926-08-06
Abstract: 265,863. Frommer, R. von. Aug. 6, 1926. Breech actions, sliding breech-block. - A cartridge guide for a singleloading smallarm comprises a lever 5 pivoted outside the breech body and having a head 6 formed with a sloping top surface 9 which, under the influence of a spring 8, projects through a slot 7, into the bolt-way. The head is depressed by the closing breech-block.
Patent GB-698338-A (GB)
Title: Improvements in rubber articles strengthened with polyamide fabrics
IPC: B60C9/00
Filed: 1950-08-04
Abstract: A rubber article, e.g. a tyre, has a strengthening insertion of a polyamide fabric which has been treated, before or after being woven, with the dry vapour of formaldehyde or any other aldehyde having one or more aldehyde groups, in the absence of a solvent, swelling agent, catalyst and oxygen (see Specification 698,337, [Group IV (a)]. Specification 534,698, [Group IV], also is referred to.