baber/WOPTO huggingface dataset:
Patent GB-538305-A (GB)
Title: Improvements in electric circuit arrangements comprising saturable electric chokes
IPC: B60L3/00
Filed: 1939-12-20
Abstract: 538,305. Non-contact-making relays. GENERAL ELECTRIC CO., Ltd., and THOMSON, W.G. Dec. 20, 1939, No. 32610. [Class 40 (iv)] [Also in Group XXXV] A saturable cored choke 5 applicable, for example, to switching in an artificial load 13 on rise of D.C. voltage in the event of regeneration in a traction system 2, 3 fed by a vapour arc rectifier 4 comprises a winding 8 energized by the difference between the voltage of the system and that supplied by an auxiliary rectifier 12 which normally exceeds the voltage of the system by an amount sufficient to cause saturation of the core. Rise of the system voltage thus tends to desaturate the core whereupon the inductance of a winding 9 effectively in series with the auxiliary rectifier 12 is increased, thereby decreasing the voltage supplied by the rectifier and causing rapid desaturation of the core. The resulting increase in the impedance of a winding 10 causes the primary of a transformer 15 in shunt therewith to be energized thus energizing through a spark gap oscillation circuit the ignition electrode of a discharge device 16 which brings into operation the artificial load 13.
Patent GB-898315-A (GB)
Title: An improved food service unit
IPC: A47B31/02
Filed: 1960-09-22
Abstract: 898,315. Hand trucks. SWARTZBAUGH MANUFACTURING CO. Sept. 22, 1960 [Sept. 30, 1959], No. 32651/60. Class 108(1). [Also in Group XIII] A food service trolley comprises two insulated compartments having a refrigerating apparatus 35, 36 between them and each compartment is divided by vertical partition members 64 to form two compartments 65 which are refrigerated and two compartments 66 which can be heated by heating coils 39. The partition member 64 is provided with spring-urged shutters 74 which are deflected upwardly by the raised rib 92 of a tray 30 slid into the unit on the runners 47, 56 so that the food on part of the tray 30 in the compartment 66 is maintained hot and that in the compartment 65, cold. The partition 64 is mounted on a back board 62 which is interchangeable with the back board 63 so that the relative sizes of the compartments can be altered to suit winter and summer conditions, the trays 30 being insertable the other way round to give a larger cold compartment capacity during the summer. The trays 30 are preferably provided with front walls to seal the compartments and external doors are also provided for the unit.
Patent GB-299216-A (GB)
Title: Improvements relating to undersupports for mattresses
IPC: A47C23/043
Filed: 1927-12-03
Abstract: 299,216. Peyton, Hoyland, & Barber, Ltd., and Webster, G. A. Dec. 3, 1927. Mattresses.-Undersupports are connected to the mattress frames by hooks or hangers 6 which are hinged so that they can be turned out of the way during assembly.
Patent GB-993041-A (GB)
Title: Improvements in or relating to vehicle wheel suspension devices and to vehicles incorporating such devices
IPC: B60G3/04
Filed: 1960-09-22
Abstract: 993,041. Vehicle spring suspensions. T. M. S. BIDWELL. Sept. 1, 1961 [Sept. 22, 19601, No. 32667/60. Heading B7D. A vehicle suspension device comprises a transverse chassis element 1 on each end of which on a bolt 7 is pivoted a supporting element 2 for a stub axle 3 upward movement of which is resisted by a resilient device 4. Each device 4 comprises a pair of pins 18 secured to the lower flanges of the element 1 and joined by a bridge piece 22 between which and a movable plate 23 engaged by the upper edge of one of the elements 2 are disposed a pair of springs or rubber elements 24 surrounding the pins 18. The element 1 may alternatively comprise an inverted T-section member (Fig. 4, not shown) with at each end a slot in one bottom flange for an element 2 to pass through or a single angle iron with a block 30 (Fig. 6) secured to it at each end to support one of the pins 18. When the device is to form part of a trailer one or two longitudinal members 27 may be secured to the transverse element 1 to form a towing means. The elements 2 may be bowed to provide friction contact with element 1 and extended inwardly so that downward movement of the wheels is limited by element 2 contacting member 27.
Patent GB-1392776-A (GB)
Title: Methods of manufacturing nozzles
IPC: B41J2/16
Filed: 1973-07-09
Abstract: 1392776 Moulding nozzles SIEMENS AG 9 July 1973 [30 Aug 1972] 32670/73 Heading B5A [Also in Division C1] A method of producing a nozzle for an ink jet printer comprises coating a thread 1 with a metal film 2, embedding the coated thread in material 4 to form the body of the nozzle, and removing the thread 1 to leave a metal coated passage in the body. The thread may be of metal, e.g. copper, or synthetic plastics material, and may be removed by dissolution, melting, depolymerization. The film 2 is preferably of gold and may be applied by vapour phase deposition. The material 4 may be glass, ceramic, polytetrafluoroethylene, polystyrene, polyethylene, styrene/butadiene copolymer, polypropylene, or polycarbonate. A metal ring 3 is incorporated into the material 4 to provide an electrical contact with the film 2.
Patent GB-604798-A (GB)
Title: Improvements in or relating to pumps and pump impellers
IPC: F04D9/00
Filed: 1945-12-04
Abstract: 604,798. Centrifugal pumps. EDWARDS, M. L. Dec. 4, 1945, No. 32713. Convention date, July 14. [Class 110 (i)] An electrically-driven submerged petrol pump comprises centrifugal pumping blades 40 delivering into a volute chamber 18 and thence to an outlet 21 and screw blades 37b in the open upper end of the rotor. The blades 40 are shaped as shown in Fig. 3 or Fig. 4 to cause eddies in the enlarged spaces c. The eddies cause a separation of the vapour from the liquid and the vapour is drawn off axially by the screw blades 37b and returned to the tank. The blades are secured to the rotor 37a and to a flanged shrouding ring 39. The blades 40 are enclosed, with running clearance, by a stator ring 31.
Patent GB-838879-A (GB)
Title: Improvements relating to electrically-heated water jugs and the like
Inventor: ASHTON CLYDE
IPC: A47J27/00
Filed: 1956-10-30
Abstract: 838,879. Jugs. BULPITT & SONS Ltd. Jan. 29, 1958 [Oct. 30, 1956], No. 33056/56. Class 66. [Also in Group XI] A container 1 of an electrically heated jug has its top opening flared to a rim 3 which has a raised portion 5. An inlet socket 10, an indicator lamp 8, and an adjusting knob 9 for a thermostatic control are located beneath the portion 5 so that should the contents of the container boil over, they will tend to flow over the lip 4 of the rim, and socket, lamp and knob will be protected by the portion 5 ; the handle will also share the protection. The portion 5 is inclined inwardly to assist in containing the contents. Alternatively, lower parts of the rim may be between the lip and the portion 5, the opposite sides of the run being shaped to form lower rim portions over which the contents of the container will tend to pass if they boil over. The jug may have a cover or lid.
Patent GB-265559-A (GB)
Title: Trolley for electrically propelled driving vehicles
IPC: B60L5/22
Filed: 1926-12-31
Abstract: 265,559. Meyer, G. Feb. 2, 1926, [Convention date]. Bow collectors; supporting and controlling arrangements for collectors.-In pantograph or bow collectors wherein the tension of the pressing- on spring is adjusted by the driver, one end of the spring is fastened to a lever operated by the driver while the other end engages the lower end of the pantograph frame. In Fig. 1, the bow 57 is carried by a cross-bar 1 having a wedge extension 23 to prevent tipping and connected to rods 2, 3 pivoted at 4 and attached to arms 7, 8. The arms are secured to a cross arm 9 sliding on a guide rod 10. The arm 9 is engaged by a spring 12 mounted on a shaft 12<1> which is rotated by levers 21, 22 and connections 18, 19. In Fig. 4, the loop 24 is resiliently adjustable in a tube 25 mounted on a. stirrup 26 engaging links 27 which carry a cross arm 28 engaged by a spring 29. In Fig. 5, the bow 57 is carried by a rod 33 slidable in a tube 32 secured at the end of the car, inside or outside. The rod 33 is connected to links 35 carrying a cross arm 40 engaged by a. spring 41. In Fig. 7, the rod 46 is carried by a shearable pin in a ntting 49 which slides in a slot in the side of the car and is coupled to links 50. The bow 57 is maintained erect by springs 62, 63.
Patent GB-615218-A (GB)
Title: Improvements in and relating to photographic colour developers and photographic colour development
IPC: G03C7/36
Filed: 1945-12-11
Abstract: 615,218. Photographic colour development. GEVAERT PHOTO-PRODUCTEN N. V. Dec. 11, 1945, No. 33443. Convention date, March 17,1941. [Class 98 (ii)] A reducible silver salt image is colour developed with an aromatic amino developing agent in presence of a colour coupler of the formula (CN-CH2-CO-NH-N = )nX, wherein n is 1 or 2 and X is any organic residue containing no reactive methylene group and capable of forming a hydrazone by reaction with a hydrazine. The coupler may be in the developer or a silver halide emulsion layer. The usual aromatic amino developing agents may be used. Formulµ for suitable developing solutions incorporating the couplers are given. Compounds specified are the cyanacetylhydrazones of vanillin, piperonal, phenylacetaldehyde, crotonaldehyde, #-furylacrolein, terephthalaldehyde, pyruvic aldehyde, acetophenone, benzalacetone, mono-bromisatin, 5- nitro-7-methylisatin, cinnamaldehyde and ethyl alpha-phenylacetoacetate. Specification 590,637 is referred to.
Patent GB-1147236-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/63
Filed: 1966-07-26
Abstract: 1,147,236. Rotary-scythe mowers. C. VAN DER LELY N.V. 26 July, 1966 [10 Aug., 1965], No. 33676/66. Heading A1F. A rotary-scythe mower comprises a boom 1 mounted at the rear of a tractor 29 and carrying two rows of relatively-staggered rotary-scythe units, each unit comprising a frusto-conical drum 9 resting on a domed cap 10 and carrying, above the cap, a plate 22 on which are secured knives 24, 25, each drum being invertible and being capable of carrying the knives at either of its two ends, whereby swaths of different degrees of compaction can be formed by inverting the drums and re-mounting the knives. The knives of the two rows are of different radial projection, those on the rear row being of larger diameter. Each drum is mounted in a bearing 6 carried by two convergent arms 5 pivoted in brackets on the boom, the arms being held resiliently in rubber blocks 21 carried by the boom 1 so that they are capable of limited vertical movement. The boom houses a drive-shaft 19 which drives, through bevel gears 17, 18, a series of vertical stubshafts 15 from which belt-drives 13 are taken to pulleys 12 on the drum-axles 7. The boom has a horizontal pivot adjacent to its connection with the tractor.
Patent GB-1188572-A (GB)
Title: Apparatus for Feeding Loose Bulk Materials
IPC: B65G65/48
Filed: 1967-07-21
Abstract: 1,188,572. Discharging sticky material. L. & C. STEINMULLER G.m.b.H. 21 July, 1967 [26 July, 1966], No. 33690/67. Heading B8S. Sticky material from shoot 1 is contained within hopper 2 and is discharged therefrom through flexible shoot 3 and rotary tube 4. Hopper 2 is rotated by the motor shown in bearings 7 and 9. Hopper 2 is pivotally mounted at 5, so that it may be disposed vertically for the initial filling. The tube 4 is capable of horizontal and vertical displacement.
Patent GB-997111-A (GB)
Title: Centrifugal pump
IPC: F04D9/02
Filed: 1963-08-26
Abstract: 997,111. Priming centrifugal pumps. R. BAUER. Aug. 26, 1963 [Sept. 10, 1962], No. 33731/63. Heading F1C. In a self-priming centrifugal pump for liquids, particularly for contaminated water or pulp, in which the liquid is fed by the impeller through a feed duct into an air release chamber, to which the discharge conduit is connected and which communicates through a return duct with the pump housing, the return duct opens tangentially into the pump housing at a point which is approximately opposite to the outlet from the pump housing to the feed duct and the return duct is inclined in the direction of rotation of the impeller towards the space in which the impeller blades move. When the pump is started, air-laden liquid is impelled through a feed duct 11 into an air release chamber 7 and gives rises to a liquid vortex 14 rotating in the direction of impeller rotation. The air bubbles collect at the centre of the vortex and rise towards the discharge connection 12 while the liquid flows back to the pump housing 6 through a return duct 13. The return duct 13 opens tangentially into the housing 6 in the first third of the periphery of the latter, which widens as a volute, the return duct being inclined in the direction of impeller rotation towards the space in which the impeller blades move. When the pump is shut down, a check valve in the suction pipe closes to retain sufficient liquid in the pump for the next start.
Patent GB-1413398-A (GB)
Title: Preparation of 2-methyl-5-ethylpyridine
IPC: C07D213/10
Filed: 1973-07-16
Abstract: 1413398 2 - Methyl - 5 - ethylpyridine MERCK & CO Inc 16 July 1973 [21 July 1972] 33857/73 Heading C2C 2 - Methyl - 5 - ethylpyridine is prepared by reacting acetaldehyde with an excess of an aqueous solution of an ammonium salt at a temperature in the range of 180-270 C. at a pressure sufficient to maintain the reaction mixture in the liquid phase. Suitable ammonium salts are, for example, the dihydrogen phosphate acetate, fluoride, bifluoride, benzoate, borate and sulphide.
Patent GB-486878-A (GB)
Title: Process for the manufacture of rubber conversion products
IPC: C08C19/00
Filed: 1936-12-10
Abstract: Rubber reaction products are obtained by heating an aqueous dispersion of rubber in the presence of acid and a protective colloid, with an aldehyde such as formaldehyde or acetaldehyde or substance capable of splitting off an aldehyde such as trioxymethylene or polyoxymethylene under such conditions of time, temperature and acid concentration that substantial isomerization of the rubber, as determined by titrating a solution in carbon tetrachloride with bromine or iodine, or by solubility tests, is avoided.  Suitable acids are hydrochloric and sulphuric.  The sodium salts of alkylated naphthalene sulphonic acids, saponines, alcohol sulphonates and condensation products of polyethylene polyamines with higher fatty acids, are mentioned as protective colloids.  The rubber dispersion may be subjected to a preliminary oxidation, as by hydrogen peroxide.  The product is filtered off, washed and dried; it may be vulcanized to produce leather- or linoleum-like products, or used for the production of moulded articles, or as a cork substitute. Amines or phenols may be added to prevent spontaneous ignition, phenol acting also as a softener. Substances having tanning properties are obtained by acting on the products with nitric acid.
Patent GB-412277-A (GB)
Title: Improved processes of, and electrolyte for electroplating
IPC: C25D3/58
Filed: 1932-10-18
Abstract: Alloys containing 3-30 per cent of tin and the remainder principally copper are obtained by electrodeposition.  The preferred alloys contain 10-25 per cent of tin.  Specific compositions mentioned are 12 per cent tin, 88 per cent copper; 13 per cent tin, 87 per cent copper; 20 per cent tin, 80 per cent copper.  Specification 409,001 is referred to.
Patent GB-194799-A (GB)
Title: Improvements in or relating to electric resistances and the like
IPC: H01C10/38
Filed: 1921-12-19
Abstract: 194,799. Watts, H. A. Dec. 19, 1921. Variable resistances; inductances.-A variable electric rheostat, inductance, potentiometer or the like, of the kind comprising one or more resiliently mounted windings engaged by an adjustable contact, comprises wire or the like wound around one or more resiliently mounted formers or carriers, and a contact lever or guided contact member movable in a plane or in a straight line parallel to the axes of the formers and perpendicular to the direction of movement of the formers. The lever or guided member contacts with the windings to vary the resistance or inductance in circuit, the resilient mounting of the formers pressing the turns of the wire against the contact with efficient electrical contact and without liability of jamming. In the rheostat shown in Fig. 4, two cylindrical formers 1, 2 wound with separate resistance wires carry pins 3 engaging slots 4 in brackets 5 on a plate 6 attached to a panel 8. A lever 13 pivoted to a plate 10 at the front of the panel 8 passes through a slot in the panel and in between the formers 1, 2. The formers 1, 2 are drawn together against the lever 13 by means such as helical springs 9. The wires are connected at one end to the terminals of the resistance, and the lever 13 makes variable contact between them and may be so arranged, that all the resistance may be cut out of circuit. The plate 10 may be dispensed with. the plate 6 being arranged at the front of the panel 8 and the brackets 5 extending through an aperture in the panel. The lever is of oval or rounded cross-section, may be rigid or resilient, and may be mounted in a resilient or ball-and-socket joint. The lever may be replaced by a sliding guided contact which mav be resiliently mounted. The formers may be fluted longitudinally. In a modification, for use particularly as a potentiometer, one of the formers is left blank, the contact forming one terminal of the unit, or the blank former may be conductive to form one terminal of the unit as well as a guide for the contact. In another modification, Fig. 7, three parallel formers 1, 2, wound with wire are pressed together by springs 20, a member 22 movable parallel to the axes of the formers by a central rotatable screw 23 carrying contacts 25, 26, 27 engaging the wires on the formers. The contacts 25, 26 are electrically connected together, the contact 27 is connected to the end of the wire on the former 3, and the ends of the wires on the formers 1, 2 are connected to the terminals of the unit.
Patent GB-322323-A (GB)
Title: Improvements to emblems indicative of support of a cause
IPC: A44C1/00
Filed: 1928-11-21
Abstract: 322,323. Bond, H. O. Nov. 21, 1928. Emblems.-An emblem, indicative of support of a cause &c., comprises a holder for matches, pins, or needles and means for attaching it to the apparel. The holder may be in the form of a rosette the petals of which are formed of matches, and may be attached to the lapel by a pin.
Patent GB-523056-A (GB)
Title: Improvements in and relating to folding furniture
IPC: A47B5/06
Filed: 1938-11-24
Abstract: 523,056. Furniture brackets &c. WILSON, E. L. Nov. 24,. 1938, No. 34232. [Class 52 (v)] A tip-up bracket member 11 which may form the surface of an ironing-table, bed &c. has pins 12 at the inner end adapted to slide in guides 13 in a rectangular vertical frame 10 and is supported in the horizontal position by stop 19, a pivoted stay 14 and folding legs 20. The stay may have a series of pivot holes 18 to suit different sizes of bracket member, or may be of triangular plate form. The legs may be retained open or closed by spring catches &c. as described in Specification 351,544. The parts are proportioned so that the member 11 tends to drop, and when the member is imperforate the closing action is cushioned by air trapped in the frame.
Patent GB-459907-A (GB)
Title: Improvements in and relating to synchronous motor clocks and time-operated mechanisms
IPC: G04C15/00
Filed: 1935-12-11
Abstract: 459,907. Electric clocks. HORSTMANN GEAR CO., Ltd., and HORSTMANN, A., Newbridge Works, Bath, Somerset. Dec. 11, 1935, No. 34351. [Class 139] Timekeeping mechanism comprising in combination a synchronous electric motor 4, auxiliary clockwork mechanism of which the mainspring 6 is wound by motor 4 through a slipping arrangement to prevent overwinding, a time dial or equivalent (shaft 8) coupled to motor 4 and the auxiliary clockwork through a differential gear G, so as to be driven by motor 4 on the auxiliary according to which one is working, and an electromagnetic brake 12 which arrests the auxiliary clockwork except when the current to the motor 4 fails. The centre arbor 8, for driving the time dial (not shown), or other time-operated element, is driven by an epicyclic train G of which the planet carrier 13 is common to two sun wheels 14 and 15. Sun-wheel 14 is driven by the synchronous motor 4 through worm gear 18 and train 19 ... 24, of which wheel 24 is rigid with sun-wheel 14 and also drives a wheel 25 for winding the mainspring 6 of the auxiliary movement. Whilst the motor is running the circuit also energizes a solenoid 5 which pulls an armature lever with a slidable springy brake 12 against the scape wheel 11 to assist the latter. When the motor 4 ceases to act, the other sun-wheel 15 is driven by spring 6 through a train governed by the escapement 9. Spring 6 may also be wound manually by means of an arbor 31.
Patent GB-348629-A (GB)
IPC: C01B3/06
Filed: 1929-11-11
Abstract: Phosphoric acid and hydrogen are produced by the action of phosphorus on liquid water under pressure at temperatures above 100 DEG  C., e.g. at 250-300 atmospheres and 300-350 DEG  C., in the presence of metals of the iron group or their salts.  The phosphorus and water are intimately mixed or emulsified. Phosphorus - containing vapours from phosphate decomposition may be passed into a washer e.g. of the Thyssen type, wherein the phosphorus condenses and forms an emulsion, or the emulsion may be made by means of ultrasonic waves produced by supersonic apparatus.  The emulsion is compressed and passed through heat exchangers to the reaction tube which contains the catalyst, and which may be heated electrically or by furnace gases.  The hydrogen and dilute phosphoric acid produced may be used to preheat the emulsion, and the former may be collected under its own pressure and used for ammonia synthesis, which ammonia may be converted into ammonium phosphates, or for producing organic compounds, e.g. by combination with carbon monoxide from phosphate decomposition.  The pressure of the hydrogen may be used for compressing the phosphorus emulsion.  The phosphoric acid may be concentrated by reducing its pressure, before or after it has been used in the heat exchanger, to vapourize water.  Molten phosphorus may be used instead of the phosphorus-containing gases, and introduced under pressure into the reaction tube into which water is separately fed.  Intimate mixing may be effected by providing a stirrer projecting through a stuffing-box, which need not be so tight as to prevent flow of part of the liquid through it. Hydrogen and liquid are withdrawn to maintain a constant level.