baber/WOPTO huggingface dataset:
Patent GB-500585-A (GB)
Title: Improvements in or relating to the treatment of molasses
IPC: C05D3/02
Filed: 1937-08-13
Abstract: 500,585. Manures. WITHERS, J. S. (Penning, C. 'J. H.) Aug. 13, 1937, No. 22335. [Class 111] [Also in Group V] Waste molasses, final molasses or blackstrup is mixed with quicklime the preferred proportions being two to one respectively. The dried product may bo used as a fertilizer.
Patent GB-1285523-A (GB)
Title: Improvements in or relating to toy vehicles
IPC: A63H17/26
Filed: 1971-04-19
Abstract: 1285523 Toy vehicles TONKA CORP 19 April 1971 [4 May 1970] 22381/71 Heading A6S A toy vehicle comprises a resilient axle 24 having a wheel member 25, 26 fixedly mounted on each end of the axle, a body shell 11 extending over the axle and having an axle support 18 projecting downwardly therefrom with a seat 19 adjacent its lower end for receiving the central portion of the axle and means 20 on each side of the body shell positioned to engage the wheel members when downward pressure is applied to the body, Fig. 5, and prevent over-flexing of the axle. In the embodiment described both the front and rear axle assemblies of the vehicle are mounted in a similar fashion (Figs. 2, 3, not shown). The axle is preferably formed of high strength tempered steel wire of diameter from 0.02 to 0.04 inches, and the diameter ratio of tyre 37 carried by the wheel assemblies to the wire is in excess of 20:1. The tyres preferably have a V-shaped external profile to reduce rolling friction. The seats 19 in the supports 18 are also preferably of V-shaped configuration. If a heavy load is applied to the vehicle (Fig. 6, not shown) floor pan 12 contacts the ground before the axle 24 is permanently deformed. Withdrawal of the wheel members 25, 26 from the axle is prevented by means of flanges 22 depending from the body shell which cooperate with grooves 29 in the wheel members.
Patent GB-354992-A (GB)
Title: Improvements in the manufacture and production of alcohols
IPC: C07D213/30
Filed: 1930-07-25
Abstract: Alcohols; ethers; esters; halogen and nitro compounds.-Alcohols are manufactured by the action of alkylene oxides or substances forming them on hydrocarbons or heterocyclic compounds or their derivatives not containing reactive amino, hydroxyl, or carboxyl groups, in the presence of a Friedel-Crafts condensing agent, if desired at elevated pressure.  The reaction occurs at temperatures down to -10 DEG  C. but is preferably effected at higher temperatures, e.g. up to 100 DEG C.  Inert organic diluents, such as carbon disulphide or carbon tetrachloride, may be employed.  As condensing agents are specified anhydrous aluminium halides, boron fluoride, anhydrous ferric chloride, and like acid reacting halides of solid elements melting above 300 DEG  C. In examples: (1) benzene is treated with ethylene oxide to produce phenylethyl alcohol together with some dibenzyl when working at raised temperature; the ethylene oxide may be replaced by ethylene chlorhydrin; (2) n-pentane with ethylene oxide yields an oil containing mainly n-heptyl alcohol; the pentane may be replaced by hexane or heptane, or by hydrocarbon mixtures such as benzines or kerosene, and the ethylene oxide by propylene or butylene oxide; (3) American kerosene is treated with ethylene oxide, giving a mixture of higher alcohols; (4) ethyl chloride and ethylene oxide produce an oil which can be separated into fractions containing glycol chlorhydrin and 1 : 4-butylene chlorhydrin; (5) pyridine is treated with ethylene oxide to produce a mixture of hydroxyethylpyridines; (6) cyclohexane with ethylene oxide yields an oil containing mainly hydroxyethylcyclohexane; (7) naphthalene similarly gives a compound of the formula C10H7.C2H4OH.  A additional starting materials are specified on the one hand dodecene, octadecene, hexahydrotoluene, toluene, middle oils, brown coal tar oils, products of the destructive hydrogenation of coals and tars, quinoline, dioxane, thiophene, butyl chloride, mono-halogen-benzene and -toluene, and on the other hand isobutylene oxide, trimethylethylene oxide, glycide and epichlorhydrin.  The Provisional Specification describes also the treatment of nitrotoluenes, ethers and esters.
Patent GB-792341-A (GB)
Title: A new or improved towing bar for use in towing vehicles
IPC: B62D13/04
Filed: 1953-08-14
Abstract: 792,341. Clamp fastenings. FARNSWORTH, D. G. Aug. 16, 1954 [Aug. 14, 1953], No. 22530/53. Class 44 [Also in Group XXXI] Relates to a vehicle towing bar (see Group XXXI), the bar being clamped to the axle A and trackrod of the towed vehicle. As shown in Fig. 1 the axle clamp comprises a substantially L shaped member 3 and a chain 16, and the track rod clamp comprises pivoted L shaped members 27, 28 interconnected by a screw and nut. In a modification, Fig. 6, the axle and track rod clamps each comprise members 38, 39 pivoted at 40, the members being operated by a screw 43 in the member 39 engaging a recess 44 in the member 38.
Patent GB-500963-A (GB)
Title: Improvements in or relating to safety blasting explosives
IPC: F42B3/28
Filed: 1937-08-17
Abstract: 500,963. Blasting-cartridges. OWENS, R. D. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 17, 1937, No. 22613. [Class 9 (i)) A blasting explosive cartridge is provided with a safety sheath of a composition which is permanently coherent and self-supporting at ordinary temperatures but capable of being worked as a plastic at raised temperatures, said sheathing material comprising, in the absence of oxidizing agents, a cooling salt, such as sodium bicarbonate, anhydrous sodium carbonate, potassium , sulphate or calcium fluoride, and, as binder therefor, a bitumen and, if desired, one or more additional substances, such as guttapercha resin, smoked or crÛpe rubber, gelled castor oil or paraffin wax,.having the effect of reducing the brittleness of the bitumen at ordinary temperatures. The proportion of bitumen, which may be of any commercial grade, but preferably one having a standard penetrometer test of approximately 200-220, preferably lies between 5 per cent and 10 per cent of the total composition. The final composition may be sheeted by passage through rollers and wrapped round a blasting cartridge while still warm. Alternatively, the composition may be extruded into flat sheets or hollow cylinders and the shaped material may then be chilled after it has been given its final form. Specifications 24385/97, [Class 9], 416,586, 424,784. and 467,143 are referred to.
Patent GB-1376419-A (GB)
Title: Hematology system
IPC: G01N33/49
Filed: 1973-05-11
Abstract: 1376419 Particle analysis system GENERAL SCIENCE CORP 11 May 1973 [15 May 1972] 22641/73 Heading GIN The invention relates to a circuit-arrangement for determining the MEAN-PARTICLEVOLUME of a liquid suspension, and as described forms one step in the Hematocrit determination in a blood-analysis system. According to the invention a predetermined number of standard width pulses are generated and subsequently integrated, the pulses having a height corresponding to the amplitude of output pulses from a particle analyser. The invention is described with reference to a complete system for blood count, HCT, MCV, and HGB, Fig. 1. The apeture type "transducer" 10 and volume measuring tube arrangements illustrated here also in Fig.3 (not shown) may be substantially as described in Specification 1361770. Pulses from the analyser are amplified at 16 and fed to a comparator with RBC and WBC threshold references and thence via gate 80 to counter 78 which opens a linear-gate 76 for a predetermined number of pulses from the comparater. The linear-gate admits pulses directly from amplifier 16 to peak-detector 82 which generates the standard width pulses of corresponding height for the integrator 86. Further features in Fig. 1:- (i) uniform pulses corresponding to the total count are applied to integrator 90 and multiplied by the "mean-volume" signal from integrator 86 to provide the HCT signal (The uniform sized pulses are produced from the counter input signal by multivibrator 92 and Zener-diode 95) (ii) The counter, audio-monitor, and MCV display are energized by the analyser pulses from the threshold comparator after passing through a divider 62 which together with the displays is adjustable for RBC and WBC by control 68. (iii) A control system for purging the cell and reverse "air-flushing" the aperture is illustrated schematically in parts 106-118 Fig. 1. (iv) A statistical correction circuit for particles coincident in the sensor-aperture FIG 4 (not shown) forms the subject of Specification 1376420.
Patent GB-688313-A (GB)
Title: Process for working up molten cellulose derivatives into threads and other shaped articles
IPC: C08L1/10
Filed: 1950-09-14
Abstract: A cellulose derivative having a content of water between that which it would normally have after being exposed to the open air and that of the saturation point observed on melting is brought into the molten state and worked up into threads or other shaped structures. On exposure to the open air, cellulose triacetate takes up 0.1-0.3 per cent of water; a partially hydrolysed cellulose acetate may take up about 1.5 per cent.  The saturation point observed on melting is that content of water above which evaporation of the water with foaming occurs when the cellulose derivative is melted.  The presence of water in the cellulose derivative considerably reduces the melting-point and thus the temperature of the working-up process. The upper limit of the moisture content is usually not more than 10 per cent.  For cellulose triacetate it is about 6 per cent and for a hydrolysed cellulose acetate it may be 8-9 per cent.  The cellulose derivative may be dried to the desired moisture content during the manufacturing process or it may be sprayed with the required amount of water after the moisture content has been determined. The cellulose derivative is preferably brought to a finely-divided state prior to the melting operation, e.g. it may be of such a particle size that it will pass through a screen of 1 mm. mesh. Dyes, pigments, or other materials may be incorporated in the cellulose derivative in milling machines or in melting vessels. In examples, there are used cellulose acetate with a combined acetic acid content of 52.5 per cent and a water content of 5.5 per cent (m.p. 150 DEG C.); cellulose acetate with an acetic acid content of 56.3 per cent and water content of 4.0 per cent (m.p. 180 DEG  C.) or 9.0 per cent (m.p. 140 DEG  C.); cellulose triacetate with a water content of 3.0 per cent (m.p. 200 DEG  C.) or 6.0 per cent (m.p. 160 DEG  C.); cellulose tripropionate with a water content of 2.0 per cent (m.p. 160 DEG  C.) or 5.0 per cent (m.p. 150 DEG  C.).
Patent GB-1531056-A (GB)
Title: Electrolytic production of chromium conversion coatings
IPC: C25D11/38
Filed: 1976-06-01
Abstract: 1531056 Electro-deposited chromite coatings BNF METALS TECHNOLOGY CENTRE 1 June 1977 [1 June 1976] 22686/76 Heading C7B Metallic substrates are protected by cathodic electro-deposition of a chromite coating (i.e. containing Cr 2 O 3 ) from a bath containing Cr<SP>III</SP>, A "weak" CrIII complexant sufficient to keep the CrIII in solution and a poison for the cathodic conversion of CrIII to metallic Cr. Poisons specified are of three kinds; (a) oxidants (e.g. H 2 O 2 , peroxyacid salts, H 2 Cro 4 , CrVI and No 3 ); (b) H 2  overvoltage reducers (e.g. polyamines and phosphates) and (c) formaldehyde. The bath may include H 3 BO 3  and conductivity salts. The coating, believed to be Cr VI-free, may be aged to harden it.
Patent GB-159453-A (GB)
Title: Improvements relating to valves for controlling the flow of gases
IPC: F16K17/00
Filed: 1920-07-30
Abstract: 159,453. Davis, R. H. July 30, 1920. Multiple-way valves.-In apparatus for controlling the flow of gas from a vessel containing liquefied gas, the body b of the fitting projects at right-angles from the base-plate a, and the axis of the throttle valve p, which controls the flow of gas through the pipe d from the vaporizer, is at right-angles to the base-plate and to the axis of the pipes c, d. The pipe c is connected to the top of the liquefied-gas container, and any gas generated escapes through the pipe c and valve e controlled by a spring f. The tension of the spring is adjusted by a screwed sleeve g. Gas passing through the valve e unites with the gas which has passed through the valve p. A pressure gauge may be provided in communication with the pipe c.
Patent GB-336028-A (GB)
Title: Improvements in and relating to thermionic valve amplifiers
IPC: H03F3/28
Filed: 1929-07-24
Abstract: 336,028. Brantom, H., Williams, H. G. Bawtree-, Bitton, E. A., and Storry, Ltd., H. A. July 24, 1929. Thermionic amplifiers.-A sound-rerproducing circuit comprises a push-pull amplifier in which each arm includes at least one resistancecapacity coupled stage c, d, and a gramophone pick-up a directly connected to its input. The output from a pick-up of known construction may be divided by two capacities b arranged in series and shunted across it. The output valves e feed a centre-tapped loud-speaker f through chokecapacity filters e<1>, f<1>. Specifications 334,015 and 335,340 are referred to. According to the Provisional Specification, the centre-tapped secondary of an input transformer may replace the divided capacity.
Patent GB-312860-A (GB)
Title: Improvements in check valve
IPC: F16K15/02
Filed: 1928-08-07
Abstract: 312,860. Gibson, J. L. Aug. 7, 1928. Rotating to ensure even wear; buffer chambers.-A non-return lift valve has the face of the valve member 18 provided with one or more pockets 25, having inclined bottom surfaces 26 acted on by the flowing fluid to rotate the valve but adapted to be closed by the seat when the valve is closed, so that they act as buffer chambers. The valve is guided by ribs 20 engaging the seat aperture and has a socket to receive a tail on adjustable stop 15. The stop is provided with a flange having a buffering groove 27 where it engages the valve member.
Patent GB-1185535-A (GB)
Title: Improvements in Successive Approximation Analogue to Digital Converters
Inventor: QUERESHI UMAR
IPC: H03M1/00
Filed: 1967-05-17
Abstract: 1,185,535. Analog/digital converters. SOLARTRON ELECTRONIC GROUP Ltd. 29 March, 1968 [17 May, 1967], No. 22890/67. Heading G4H. In an analog/digital converter of the type in which the input signal is converted into a multi-range, e.g. multi-decade, digital signal by comparing it with the sum of weighted signals representing the highest range, weighted signals representing the lower ranges being successively introduced into the comparison signal under the control of logic circuitry, to prevent errors due to overloading the input amplifier 15 (Fig. 2) which causes the comparison signal to overshoot, each lower range is permitted to contribute to the comparison signal a total signal at least equal to one digit of the next higher range, i.e. in the decimal systems described each range can contribute up to at least ten units the logic circuitry 17a, 17b as well as controlling weighted resistors 14a, 14b feed binary coded signals to decoders 18a, 18b for conversion to decimal form, the multi-decade signal being displayed. Carry signals due to lower decades contributing ten units are transmitted via AND gates 20 to the decoder of the next higher range. In a modification (Fig. 3, not shown), in which the highest two decades have resistors weighted 4, 2, 2, 1 and the lower decades have resistors weighted 8, 4, 2, 1, the carry from the third most significant decade is fed via AND gate (22) and AND gate (23) connected to the decoder (18a) of the highest decade to which are fed all the outputs of the logic circuitry (17b) associated with the second must significant decade so that when necessary a carry output from AND gate (22) propagates a carry output from gate 23.
Patent GB-517594-A (GB)
Title: Improvements in or relating to shutter release mechanisms for photographic cameras
IPC: G03B9/58
Filed: 1938-08-04
Abstract: 517,594. Photographic cameras. KODAK, Ltd. Aug. 4, 1938, No. 23042. Convention date, Oct. 22, 1937. [Class 98 (i)] Latch means are provided on the bed of a folding camera to lock the external shutter operating member except when the camera objective is 'correctly positioned in the picture taking position. The camera comprises a recessed body portion 5, a bed 7, an objective shutter 9 and release trigger 10, and a bellows 11. Two rigid supports 12 are pivotally connected with levers 14 which are also pivoted to a lug 16 on the lens front 17. Pivoted links 19 connect the camera body with the levers 14 which have flanges to engage the support 12 when the camera is erected, the erection and locking means being those described in Specification 398,597. The shutter actuating mechanism includes a spring urged member 30 which slides in a groove 31 in the side wall of the camera. A push button 34 engages a flange 35 on the member 30. An upwardly bent portion 38 on the lower end of the lever 30 engages an edge 39 of a pivoted lever 40. This lever is spring urged and is hinged to a link 43, the forked end of which embraces a pin 46 of a lever 47, one end of which is upturned and presses the release trigger when the button 34 is depressed. In order to prevent operation of the shutter mechanism except when the camera bed is correctly positioned, a plate 53 is fixed to the inside face of the lever 30 and has an arcuate face 54. A shoulder-piece 55 attached to the side wall 7 of the camera has a cut out portion 56 and a nose 57 which are of such a length that they do not engage the arcuate face of the plate 53 when the camera is fully opened. In any other position the nose 57 prevents operation of the release slide 30.
Patent GB-953083-A (GB)
Title: Mechanically actuated disc brake
Inventor: WELLS KENNETH JOHN
IPC: F16D55/224
Filed: 1959-07-04
Abstract: 953,083. Disc brakes. GIRLING Ltd. July 4, 1960 [July 4, 1959], No. 23070/59. Heading F2E. A mechanically-actuated disc brake has opposed pressure plates 15, 16 pivoted on fixed pins 14 of which the axes are parallel to the plane of disc 12, the plates bearing on shoes 17, 18 having openended slots 19 engaging pins 14, the brake being applied by a lever 27 pivoted at 28 to plate 15 and coupled to plate 16 by a rod 29 located adjacent the edge of disc 12. Resilient centralizing fingers 22 secured to a fixed brake part engage in slots 21 in the shoes. The lever 27 is rotated by a rod or cable acting on a pin 33 or slot, and is normally held against a fixed abutment 35 by spring 34. The rod 29 is prevented from rotating by a pin and slot 23, 32 and is associated with an automatic clearance adjuster 31. The brake may be associated with an hydraulically-applied discbrake 10, 11, 12 and with a ring disc extending radially inwardly from a wheel rim. Specifications 953,082 and 953,084 are referred to.
Patent GB-1010368-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L23/051
Filed: 1963-06-10
Abstract: 1,010,368. Semi-conductor devices. CKD. PRAHA NARODNI PODNIK. June 10, 1963 [June 21, 1962], No. 23101/63. Heading H1K. A hermetically sealed enclosure for a semiconductor device comprises two approximately frusto-conical contact plates 2, 3 having sandwiched therebetween a semi-conductor element 1 and a substantially cylindrical plastics body 4 bonded to the plates and to the element. The plates are covered with a layer of solder so that they may be soldered to the element at the same time as the plastics material is being heat treated. The plastics material should have a coefficient of expansion higher than that of the plates and it should exert a pressure on the plates and element at the normal temperature of the device. Further connecting wires, e.g. 5, to other electrodes of the device may be provided.
Patent GB-908335-A (GB)
Title: Process for the polymerisation of butadiene
IPC: C08F136/06
Filed: 1961-06-26
Abstract: Polybutadiene of high cis-1,4 content is made by polymerizing butadiene-1,3 in a non-aqueous solution, in the presence of a catalyst consisting of one or more compounds of cobalt and/or nickel, an aluminium alkyl compound having no more than one halogen atom per alkyl group, and a hydrogen halide in an amount of from 0,1 to 3,1 moles per atom of aluminium in the aluminium alkyl compound.  The nickel and/or cobalt compounds may be soluble in an organic solvent, or they may be solubilized by using a suitable complexing agent, e.g. an alkyl phosphate or phosphite, or an acidic metal halide such as aluminium trichloride.  The first component of the catalyst may be cobalt or nickel chloride, nitrate, naphthenate, octanoate, sulphate, phosphate, carbonate, sulphide, cyanide, sulphocyanide, acetate, propionate, butyrate, oxalate, benzoate, or acetylacetonate. The preferred aluminium compound is diethylaluminium chloride. The polymerization is preferably effected in the presence of an inert diluent such as benzene, toluene, xylene, ethyl benzene, cyclohexane, hexane, octane, isooctane, butene-1, pentene, carbon tetrachloride, chloroethylene, alpha-chloropropylene, chlorobenzene, bromobenzene, o-chlorotoluene, or m-chlorotoluene. The polymer is recovered using conventional methods, e.g. addition of isopropyl alcohol.  The process may be effected continuously.  The solvent and butadiene may be purified prior to use.  The preferred hydrogen halide is hydrochloric acid.  The polymer may be vulcanized, e.g. with sulphur, sulphur chloride, or thiuram polysulphides.  The polymers may be used in the manufacture of tyres, belts, tubes, and coating and/or impregnating compositions.
Patent GB-1067795-A (GB)
Title: Method of manufacturing microfine metal powder
Inventor: ISHIBASHI WATARU
IPC: B22F9/00
Filed: 1965-05-31
Abstract: 1,067,795. Making metal powders; spark erosion. IWATANI & CO. Ltd. May 31, 1965, No. 23126/65. Headings B3A and B3V. In the production of microfine metal or alloy powders, crude powder grains are placed in a liquid in a tank 3, Fig. 1 (not shown), containing electrodes 5, 6 which when energized by pulsating current cause spark erosion to occur between the particles of metal powder thus yielding microfine grains. An outer tank B contains a heavy oil, which may be animal, vegetable or mineral, and is circulated by pump 11 through pipes 10, 4 and apertured plate 7 into the inner tank 3 containing the crude powder. The electrodes 5, 6 which may be of iron but are preferably of the same metal as the powder, are supplied with pulsating current at 3000 to 100,000 volts and 20 to 100 kc/s. through a transformer 9. The microfine powder C overflows into outer tank 2 and is removed through outlet 12. The powder is then dehydrated and purified. In another embodiment, Fig. 2 (not shown), the insulated liquid is water and a collecting tank 15 for the microfine powder C is provided in the circulating ducting 10, 14. In this embodiment the powder is completely oxidized. The crude powder may be made by cutting wire into short lengths. Liquefied gas such as nitrogen or argon may also be used as the liquid. Reference is made to powders of iron, aluminium, nickel and lead.
Patent GB-889227-A (GB)
Title: Improvements in and relating to in-line internal combustion engines
IPC: F02B75/02
Filed: 1959-07-06
Abstract: 889,227. Engine construction; power plant. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK, and TIKALSKY, J. July 6, 1959 [July 7, 1958], No. 23195/59. Class 7(2). The unitary cylinder block 1, Fig. 3, and upper crankcase 5 of an in-line engine is of inverted-T shape so as to present on each side seating faces 4 which support engine control means and accessories within the main engine outline and allow identical engines to be used side-by-side but oppositely axially orientated in a marine drive.