baber/WOPTO huggingface dataset:
Patent GB-879815-A (GB)
Title: Improvements in or relating to static dischargers for aircraft
IPC: B64D45/02
Filed: 1959-06-04
Abstract: 879,815. Discharging static electricity. CHELTON (ELECTROSTATICS) Ltd., and SMITH, H. R. May 26, 1960 [June 4, 1959], No. 19175/59. Class 35. A static discharger for aircraft comprises a length of multi-stranded Ni-Cr wire with an insulating sheath 16 of polyvinyl chloride, one end of the wire being in electrical contact with a metal tag 18 whilst the other end 17, comprising strands of different length protrudes beyond the sheath. The wire extends beyond the sheath at both ends, the strands at one end being bent back over the sheath at 19 and then enclosed in a curved aluminium tube 18 where it is secured by crimping, whilst the other strands at the discharge end 17 are free and of different lengths. The free end is fed through into the front of a socket 11 on the aircraft and the discharger pulled through so that the curved tag 18 scrapes against the straight sided socket ensuring good electrical contact until halted by an indent 21. In the Provisional Specification it is stated that the wire is fixed to the tag with a conductive resin loaded with aluminium dust. Furthermore, the tag is secured to the aircraft by an adhesive neoprene, loaded with aluminium. Specification 627,241 is referred to.
Patent GB-376942-A (GB)
Title: Improvements in connection with devices for cleaning, or wiping rain or moisture from wind screens, windows and like purposes
IPC: B60S1/34
Filed: 1931-07-03
Abstract: 376,942. Cleaning windscreens, windows, &c. BIRD, F. G. N., 13, Alric Avenue, Harlesden, London. July 3, 1931, No. 19201. [Class 138 (i).] One or more wiper arms A detachably secured to flexible holders B supported by pulleys d<2> mounted in bearings between two guides are moved over the whole surface to be cleaned by means of a chain a<1> passing round fixed pulleys a<2> and having its ends connected to the holder or holders B, which chain is operated backwards and forwards by hand, mechanical, or electrical means. In the case of a plurality of wipers, they are positioned so that before they reach the limit of their traverse, one wiper passes beyond the point where the preceding wiper started.
Patent GB-1432832-A (GB)
Title: Reactor force-commutated chopper
IPC: H02M3/135
Filed: 1973-04-24
Abstract: 1432832 Commutating thyristors GARRETT CORP 24 April 1973 [24 April 1972] 19228/73 Heading H3T [Also in Division H2] A chopper circuit including two controlled rectifiers 26, 38 controlling energy supply from a D.C. source 16 to a load 22, e.g. a motor, comprises an inductance 34 which provides a free wheel path, and which co-operates with a capacitor 40 to commutate the rectifiers, a diode 42 being connected in anti-parallel with one (38) of the rectifiers. If capacitor 40 is charged to input voltage and-thyristors 26 is off, free wheel current flows through inductors 34 and a diode 36. When thyristor 26 is turned-on, current from the source flows through the load 22 and tries to flow in the inductance 34 in opposition to free wheel current. Inductance 34 and capacitor 40 resonate to produce a reversal of voltage across the capacitor which becomes oppositely charged. Thus when rectifier 38 is turned-on, the voltage on capacitor 40 turns off thyristor 26 and capacitor 40 is recharged in the original sense. It is stated that the polarity of both diode 42 and thyristor 38 may be reversed, and a resistor connected between the capacitor end of diode 42 and the negative side of the supply, in order to prevent motor reverse current flowing through diode 42 and causing discharge of the capacitor.
Patent GB-983187-A (GB)
Title: Machine for applying emissive leaves to cathode sleeves
IPC: H01J9/04
Filed: 1962-05-18
Abstract: 983,187. Coating with preformed sheets; feeding webs. SYLVANIA ELECTRIC PRODUCTS Inc. May 18, 1962 [May 18, 1961], No. 19276/62. Headings B6B and B6G. [Also in Divisions B8 and H1] Cathode-ray tube sleeves 138, Fig. 11, pass singly from a hopper 120 into axial slots 184 in a rotating suction drum 180, Figs. 3 and 11, the mouth of the hopper oscillating with a passing pocket to facilitate the transfer. The drum carries the sleeves to a position where each sleeve is gripped by its ends between jaws 224 on a drum 229, which carry it past a solvent-applying roller 250 to a lower position to receive an electron-emissive leaf. A film of electron-emissive material is fed to a device which cuts it into leaves, which are then transferred by a suction drum 290 from a lower receiving position to an upper transfer position where each leaf is blown against a sleeve, round which it is wrapped by the capillary action of the solvent, the wrapped sleeve being delivered to endless conveyer jaws. Specifications 787,926 and 885,858 are referred to.
Patent GB-147427-A (GB)
Title: Improvements in vacuum cleaner handles
IPC: A47L9/32
Filed: 1920-07-07
Abstract: 147,427. Clements, G. Nov. 12, 1913, [Convention date]. Handles combined with other appliances; angular hollow handles.-A handle for a motor-driven vacuum cleaner is provided near the end with a hollow casing, preferably split or divided and containing an electric switch, a hand-grip being mounted on the end of the casing. A casing G divided longitudinally is secured to the end of the handle A by a rivet M and the grip F is secured on the projection K of the casing by a screw U. A rivet N assists in securing the two parts of the casing together. A two-part tubular switch casing S is placed in the casing G, the thumbpieces T of the switch projecting through holes in recessed projections 0 on the casing G. The electric wires C, E pass to the switch through grooves B, D in the handle A.
Patent GB-641606-A (GB)
Title: Dry powder sprayer
IPC: B05B7/14
Filed: 1947-07-18
Abstract: 641,606. Set-off, preventing. BINKS MANUFACTURING CO. July 18, 1947, No. 19362. Convention date, Oct. 20, 1945. [Class 100 (ii)] [Also in Group XVII] A blower for distributing powder for preventing set-off comprises a refillable container having an internal delivery duct 9 leading to a distributer nozzle 11, and a second nozzle 16 entering the container to deliver air under pressure. The air supply may be regulated by a valve 30 and a flexible tube 17 on the nozzle 16 is agitated by entering air to assist in aerating the powder. A nozzle 20 in connection with the air supply may connect with the duct 9, apertures 25 permitting entry of air and powder into the duct 9. The apertures 25 may be in the duct 9, or in an enlarged portion of the nozzle 20, or the upper end of the duct 9 may be left open. When the nozzle 20 is omitted, the open end of the duct 9 is housed in a dome in the container cap. The blower may be combined with means for producing timed jets of powder.
Patent GB-923751-A (GB)
Title: Improvements in or relating to knotting devices
IPC: B65H69/04
Filed: 1959-06-08
Abstract: 923,751. Knot-tying devices. W. REINERS. June 8, 1959 [July 3, 1958], No. 19495/59. Class 74 (2). In a knotter for forming a fisherman's knot and comprising a pair of knotting bills, the latter are opened to release the thread ends before the component knots are drawn together. A hollow shaft 21, journalled in a casing 1, carries at one end a cup-shaped member 2, and is rotated via gears 22, 23 and a follower arm 25 from a cam 24 on a rotary spindle 29. The rim of cup 2 is formed with teeth 4 which mesh with teeth 5 associated with conventional knotting bills 26, 27. The rim of cup 2 is also formed with two pairs of diametrically-opposed, axially-spaced thread-receiving notches 6, 7. Fixed plates 8 are formed with notches 9 and 10, axially aligned with notches 7 and 6 respectively. In the initial position of the parts, notches 6 are radially aligned with notches 10 and receive the opposed thread ends c and d, while notches 9 are radially displaced from notches 7 and receive the main bodies a and b on the threads. A spindle 31, slidable in shaft 21, carries at one end a tensioning member 17 disposed within cup 2, and is connected at the other end to one arm of a lever 28 the other arm of which carries a follower pin 41 which cooperates with a cam 30 on spindle 29 for shifting tensioner 17 outwardly against spring bias. Arms 12, pivoted at 13, co-operate with fixed stops 11 to clamp the threads a, b when arms 14 associated therewith are released from recesses 15 in cup 2. During the initial movement of cup 2, the bills operate to tie the respective knots loosely. Member 17 then moves slightly forward to strip the knots from the bills. Member 17 then retracts, and the bills move in the reverse direction and open to release the thread ends c, d. Member 17 finally moves forward to engage the thread between the knots for drawing these tightly together, and arms 12 move away from stops 11 to release the threads a, b.
Patent GB-134384-A (GB)
Title: Improvements in Shirt Ironing Machines.
Inventor: GOOLD LEWIS WILLIAM
IPC: D06F71/20
Filed: 1918-11-27
Abstract: 134,384. Goold, L. W., (American Laundry Machinery Co.). Nov. 27, 1918. Ironing-machines with pressing action only; ironing-machines, boards and like work-supports for.-A machine of the press type for ironing shirts is provided with a board diverging from the neck-band end to the tail portion, so that the shirt may be ironed with the front unbuttoned and spread open. An adjustable neck-band former is mounted on the board, and the neckband recess in the movable ironing-chest is fitted with slidable ironing-blocks for ironing the portions of the yoke adjacent to the rear side parts of the neck-band. The invention is described as applied to the machine set forth in Specification 15630/14. The boards are fitted with flanged plates 21 diverging as shown in plan in Fig. 1, and are movable longitudinally to adjust the rear parts of the neck-band former 25, the front part 30 remaining fixed. The neck-band recess 50 in the chest 49 has divergent sides recessed as at 51, Fig. 6, and the ironing-blocks 60 are guided along the faced edges 62 of the sides by flanges 64, 65 engaging over guide-strips 66 on the faces of the chest. A stop 70 on the chest limits the outward movement of the blocks and one block carries an extending stop-piece to limit the inward movement. The blocks are connected by a pair of bars 72 and a link 77 to an operating-lever 80. This lever has a tail portion 84 adapted to engage a cam edge 85 when the chest is raised so as to move the blocks out of ironing engegement automatically as the chest is raised.
Patent GB-919406-A (GB)
Title: A process for the preparation of a polyurethane casting
IPC: C08G18/10
Filed: 1961-05-30
Abstract: A process for the preparation of a polyurethane casting comprises reacting a hydroxyl polyester having a molecular weight of from 900 to 1,200 and obtained from a dicarboxylic acid having at least five carbon atoms a dihydric alcohol having at least five carbon atoms, with from 0,4 to 0,7 mol. of an organic diisocyanate (per mol. of the hydroxy polyester) at a temperature of from 80 DEG  to 150 DEG C. until there are no longer free -NCO groups present in the reaction mixture, and then reacting the resulting hydroxyl terminated polyester polyurethane in a second step with an excess (calculated on the free OH groups) of an organic diisocyanate to obtain an -NCO terminated interpolymer, mixing the latter with an organic cross-linking agent, casting the resulting mixture in a mould and allowing it to cure at a temperature of at least 50 DEG C. until a solid substantially non-porous polyurethane plastic is obtained. Dicarboxylic acids specified are adipic, isosebacic, azelaic, bendecanedioic and dodecandioic.  Suitable dihydric alcohols are pentane-1,5-diol, hexane 1,6- and 2,5-diols, 2-dimethylpropane-1,3-diol and octadecane-1,18-diol.  Polyhydric alcohols and polyamines for use as cross-linking agents are 3,31-dichlorobenzidine, 3,31-dichloro-4,41-diaminodiphenylmethane, 2,5-dichlorophenylene-1,4-diamine, butane-1,4-diol, hexane-1,6-diol, 1,5-naphthylene-b -dihydroxyethyl ether, hydroquinone b -hydroxyethyl ether, trimethylol propane, glycerine and 1,2,6-hexanetriol.  The final cross-linking can be carried out under alkaline or acid conditions to accelerate or retard the reaction.  Suitable acidic materials are hydrochloric acid, acid chlorides, sulphur dioxide, boric acid esters and acid fillers.  Suitable accelerators are N-ethyl morpholine, dimethylbenzylamine, methyl diethanolamine and triethylene diamine.  The reaction mixture may also contain paraffins and silicone oils, or phenol and its formaldehyde condensation products.  In Example (1) a hydroxypolyester from adipic acid and hexane-1,6-diol is reacted with tolylene 2,4- and 2,6-diisocyanates. The polyester polyurethane (OH No. 58) obtained is reacted after adding HCl with naphthylene-1,5-diisocyanate.  Butane-1,4-diol is then added, and the mixture is poured into a mould and heated at 100 DEG C. to give an elastomer.  In Example (3) a similar process is used with a polyester prepared from hexane-1,6-diol, 2-dimethyl-pentane 1,3-diol and adipic acid.
Patent GB-265463-A (GB)
Title: Improvements in crystal detectors for wireless signalling
IPC: H01L29/00
Filed: 1926-08-09
Abstract: 265,463. Murray, E. P. Aug. 9, 1926. Crystal detectors.-A crystal C is held in position on a contact strip D by a pointed and resilient contact strip A. The strips are clamped in alignment or otherwise on a panel E by screws B, and the crystal may be of cubical shape so that its whole surface is available for contact. The contact strips may be replaced by wire.
Patent GB-153671-A (GB)
Title: Improvements in and relating to the bodies of automobile vehicles
IPC: B62D61/06
Filed: 1919-08-12
Abstract: 153,671. Scott, A. A. Aug. 12, 1919. Carriages; bodies.-In automobiles having arm rests 5 which extend beyond the width of the chassis and serve as mud-guards, these arm rests are formed as a continuous surface with the rest of the seat and seat back 6 and are enclosed within the sides 9 of the body. Rubbing strakes 8 may be applied to parts of the body to prevent damage thereto by contact with obstructions. The automobile shown has a single front wheel disposed at one side of the vehicle and a pair of rear wheels.
Patent GB-734901-A (GB)
IPC: F23D14/04
Filed: 1953-07-16
Abstract: 734,901. Gas burners. BRITISH THERMOSTAT CO., Ltd. June 28, 1954 [July 16, 1953], No. 19787/53. Class 75 (1). The burner of Specification 664,629 is modified by the addition of a flame spreader to the burner head. The spreader comprises a disc 12 attached by a short stem 13 to the centre of a cap 11 of heat-resisting material, e.g. nickel chrome secured to the upper end of a cylindrical mixing tube 7 and having outlet ports 9 for the mixture. Air is induced into the lower end of the mixing tube by a gas nozzle 5 spaced coaxially therefrom. The disc is effective to spread the flame and increase secondary aeration thereof at low gas flow only; at full gas flow the edge of the flame reaches beyond the disc.
Patent GB-202485-A (GB)
Title: Improvements in inverted incandescent vapour burners
IPC: F23D11/44
Filed: 1922-07-20
Abstract: 202,485. Tilley, F. C. July 20, 1922. lncandescent vapour burners; mantle supports; vaporizing - apparatus.- An inverted incandescent vapour burner comprises a mixing-tube A provided with a tubular extension A<1> and supported by a ledge K on the upper end of a vertical vaporizing- tube B, which is provided with a nipple E and connected to an oil reservoir. The mixing-tube A is provided with air-inlet tubes D and is surrounded by a cylinder F, closed at its upper end and provided at its lower end with outlets G. An annular bagshaped mantle I is secured at its upper end to a groove H in the tube F and its lower end is supported by a collar J on the extension A<1>. Specification 202,484 is referred to.
Patent GB-595309-A (GB)
Title: Manufacture of insecticidal compositions
IPC: A01N25/04
Filed: 1944-10-16
Abstract: An insecticidal aqueous emulsion is obtained by dispersing a compound having the general formula (R1(R2)CH-CX3, X being chlorine or bromine, R1 being an organic radical containing at least three carbon atoms and R2 being one containing at least five carbon atoms (i.e. D.D.T.), with water and an inorganic colloidal or flocculent substance of a hydrophilic nature.  Suitable substances are magnesium hydroxide, calcium hydroxide or aluminium hydroxide. The resulting dispersions may be dried, preferably under vacuum, and ground to form a powder.  Other materials in powder form, wetting and/or adhesive agents may be added either in the wet or dry state.  Specification 547,871 is referred to in the Complete Specification and Specification 542,007, [Group III], in the Provisional Specification.
Patent GB-420697-A (GB)
Title: Improved device for securing bedding and bed-clothes in position
IPC: A47C21/02
Filed: 1933-07-14
Abstract: 420,697. Securing bed-clothes. SHAKESPEAR, G. A., 20, North Common Road, Ealing, London. July 14, 1933, No. 19997. [Class 52 (ii)] [See also Group XXV] A device for holding bed-clothes in position comprises a pair of rods 1 held together in parallel disposition by a pair of bow-springs 2, and a third rod 4 around which the bed clothes 5 are wound before being passed between the other two rods. An alternative form of bow spring is shown in Fig. 3.
Patent GB-387396-A (GB)
Title: Improvements in staples and tools to facilitate their application
IPC: F16B15/00
Filed: 1931-07-13
Abstract: 387,396. Railings. HOLMES, J. H., Heatherlea, Rothbury, Morpeth, Northumberland. July 13, 1931, No. 20030. [Class 89 (iii).] A staple of the form shown in Fig. 1 is driven by a tool a which is formed with a channelled recess d, and a stop e to support the staple end.
Patent GB-1281853-A (GB)
Title: A method of manufacturing hydration-resistant refractories from lime and dolomite raw materials
IPC: C04B35/057
Filed: 1971-04-19
Abstract: 1281853 Refractory articles AKADEMIA GORNICZO-HUTNICZA 19 April 1971 [27 Jan 1970] 20051/71 Heading C1J Refractory articles are prepared by mining limestone or dolomite with CaCl 2  or chlorinated lime to give 2-20% CaCl 2  relative to CaO content, compacting and calcining the so formed conglomerates at 800-1600‹ C., crushing and slurrying with a medium containing CaCl 2  or Ca(OH) 2  to give a 2-20% CaCl 2  content on the final article, and forming articles by pressing extrusion or centrifuting. Sintering additive e.g. iron oxide, aluminium oxide, chromium ore, clay or slag may be added to its raw mix, and magnesia, carbon, 5-15% binding agent e.g. water glass, cement phosphate sulphate or organic polymer may be added to the crushed agglomerate. An anti-shrinkage agent e.g. Si, ferrosilicon, ferrochrome, SiO 2 , Al 2 O 3  may be added to the slurry, and the formed green articles may be impregnated with alcoholic CaCl 2  solution, and fired articles may be impregnated with tar or pitch and firing again to leave a carbonaceous residue of not greater than 3% by weight.
Patent GB-1518487-A (GB)
Title: Hot conductors
IPC: H01C7/04
Filed: 1977-05-13
Abstract: 1518487 Thermistor composition SIEMENS AG 13 May 1977 [18 Aug 1976 (2)] 20103/77 Heading C1J [Also in Division H1] A hot conductor (thermistor) for use at high temperatures comprises a sintered body of mixed rare earth oxides containing terbium oxide, and samarium oxide or ytterbium oxide. The body preferably contains 10-90 atom per cent of terbium and additionally may contain up to 2 weight per cent of CaO.
Patent GB-1460587-A (GB)
Title: Weighing apparatus
IPC: G01G19/02
Filed: 1973-04-27
Abstract: 1460587 Measuring weight electrically PA MANAGEMENT CONSULTANTS Ltd 26 April 1974 [27 April 1973] 20145/73 Heading G1N A load cell forming part of a weighbridge comprising a beam 10 (Fig. 1), supported at each end by feet 11 and with a centrally raised portion 12 on the upper surface to which the test load W is applied, has resistance strain gauges G1-G4 mounted on the sides where the beam is subjected to minimum bending so that the gauges G1-G4 measure shear stress only. The cross-sectional area in this region is reduced by grooves 13. The strain gauges are connected as a Wheatstone bridge. Two such load cells are mounted in parallel on plates 22 (Fig. 3), inter-connected by tie bars 23 and covered with a load supporting sheet to form a weighing pad on which a vehicle wheel is located for weighing. Four weighing pads may be used to measure the load carried by the front and back wheels separately, and the outputs added electronically.
Patent GB-424757-A (GB)
Title: Process for the treatment of originating materials containing lithium phosphate
IPC: C22B26/12
Filed: 1934-07-10
Abstract: Materials, such as amblygonite, containing lithium phosphate, are decomposed with an amount of sulphuric acid equivalent only to the lithium and other alkalies and alkaline-earths present by heating to temperatures at which sulphates of aluminium and iron first formed are decomposed to give insoluble phosphates or oxides, whereas lithium sulphate formed is not decomposed. Temperatures from a dull red heat to 850 DEG  C. may be used, but the mixture of ground material and sulphuric acid may be first treated at say 100--200 DEG C. to give a pulpy mass, and the main heat treatment then follow in a reverberatory or rotary drum furnace. Lithium sulphate extracted from the reaction product may be precipitated as carbonate by sodium carbonate, and the insoluble residue be treated by known methods for the recovery of phosphorus as alkali phosphate, or be heated with an alkali solution in presence of silica, or with alkali carbonate, or alkali sulphate and carbon, and silica at 900--1000 DEG  C., thereby obtaining alkali phosphate.  When alkali sulphate is used, it may be wholly or in part supplied by Glauber salt recovered from the mother liquors derived from the precipitation of lithium carbonate. Numerous examples of procedure are given.
Patent GB-812023-A (GB)
Title: Improved magnetic tape recording and reproducing apparatus
Inventor: MEE CHARLES DENIS
IPC: G11B23/00
Filed: 1956-06-29
Abstract: 812,023. Magnetic recording and reproducing apparatus. M.S.S. RECORDING CO. Ltd. June 28, 1957 [June 29, 1956], No. 20268/56. Class 40 (2). A magnetic recording-reproducing apparatus has a pair of interconnected transducer heads 1, 2, one on each side of a two-faced magnetic record tape 14, spaced longitudinally thereof sufficiently to reduce the effect of local tape nor-uniformities. A spacing of the order of 0.1 inch is stated to be adequate to eliminate the effect of average faults, and is small enough to be insensitive to the stretching of a polyvinyl chloride tape. The heads, connected in parallel or, as shown, in series, may themselves act as guides, e.g. placed so that the surfaces of the respective magnetic layers of the tape lie on the common tangent 13 one on the approach side and the other on the exit side.
Patent GB-644247-A (GB)
Title: Improvements relating to the burning of cement in rotary kilns
IPC: F27B7/20
Filed: 1948-07-29
Abstract: 644,247. Rotary furnaces. EVERY, C. E. (Smidth & Co: Aktieselskab, F. L.). July 29, 1948, No. 20278. [Class 51(ii)] In a rotary cement kiln having a drying and preheating zone leading into a gas outlet chamber at the upper end dust deposited in the gas chamber is conveyed to the inlet 14 of a housing 12 surrounding the kiln and situated immediately beyond said drying and preheating zone. Scoops 17 in said housing 12 supported on and passing through the kiln casing 1 terminate in openings 16 flared outwardly in a direction opposite to the direction of rotation of the kiln.