baber/WOPTO huggingface dataset:
Patent GB-633213-A (GB)
Title: Improvements in or relating to hoisting arrangements for lifts and the like
IPC: B66B1/36
Filed: 1947-12-01
Abstract: 633,213. Hoisting-apparatus. HAMMOND & CHAMPNESS, Ltd., and HUNTER, D. G. Dec. 1, 1947, No. 31693. [Class 78 (v)] [Also in Groups XXVI and XXXIV] In an electric lift or hoist a fly-wheel adapted to be driven from any suitable point in the driving gear, the direction of rotation of the flywheel being constant relative to that of the driving member, and a friction clutch, whereby the drive to the fly-wheel may be interrupted so that energy may be transferred from the driving member to the fly-wheel, but not in the reverse direction. The fly-wheel 1 is mounted on a casting 2 keyed on a fixed shaft 3. A clutch 6 is slidably mounted on the fly-wheel by pins 16 and has friction linings 7 and 15 which engage either a driving pulley 8 adjustably mounted on the shaft 3 or the casting 2. An induction coil is mounted on the casting 2 and a disc 20 is mounted on the pins 16 moving against a spring 18. If the lift should stop short of a floor, the motor is restarted the coil is energized the disc 20 is attracted and causes the clutch to move to the right to engage the fly-wheel with the driving pulley so that the lift moves at a reduced speed. Alternatively, to retard the speed, as the lift approaches the floor, the motor is cut out and the fly-wheel is clutched in. The fly-wheel is declutched just before the main brake is applied. On de-energizing the coil the clutch is moved to the left and brakes the fly-wheel. To prevent over-speeding a plunger 27 is located to the rim of the fly-wheel which trips a contact to break the motor control circuit.
Patent GB-1448948-A (GB)
Title: Diffusion resistant dispersible magenta couplers in photographic  silver halide materials
IPC: G03C7/384
Filed: 1974-07-18
Abstract: 1448948 3 - Anilino - pyrazol - 5 - ones and intermediates therefor AGFA-GEVAERT AG 18 July 1974 [18 July 1973] 31800/74 Heading C2C [Also in Division G2] 2,6 - Dichloro - 4 - methoxyaniline is prepared by adding 4-nitrosophenol at 15-20‹ C. into a saturated solution of hydrogen chloride in methanol, introducing further hydrogen chloride, cooling to 10‹ C., filtering, washing with methanol, filtering, boiling the residue with methanol and stirring into water to precipitate the product. 2,6 - Dichloro - 4 - methoxyphenylhydrazine is prepared by adding 2,6-dichloro-4- methoxyaniline to concentrated hydrochloric acid, diluting with water, adding aqueous sodium nitrite dropwise at 0-3‹ C., filtering, adding the clear solution dropwise at 0-5‹ C. to SnCl 2 .2H 2 O in concentrated hydrochloric acid, filtering, washing with 5NHCl and water, dissolving the residue in methanol and stirring into aqueous sodium hydroxide to give the product. 1 - (2<SP>1</SP>,6<SP>1</SP> - Dichloro - 41 - methoxyphenyl) - 3 - (2<SP>11</SP>- chloro-5<SP>11</SP>-nitroanilino)pyrazolone is prepared by adding 2 - chloro - 5 - nitroanilino - # - ethoxyacrylic acid ethyl ester to 2,6-dichloro-4-methoxyphenylhydrazine suspended in glacial acetic acid, filtering, washing with glacial acetic acid, methanol and ether, suspending the residue in absolute methanol, adding 4M sodium methylate solution at 45‹ C., boiling and adding glacial acetic acid to precipitate the product. 1-(2<SP>1</SP>,6<SP>1</SP>- Dichloro - 4<SP>1 </SP>- methoxyphenyl) - 3 - (2<SP>11</SP> - chloro- 5<SP>11</SP> - aminoalinino)pyrazolone is prepared by catalytically hydrogenating the above nitro compound. The coupler of the formula is prepared by suspending the above pyrazolone in anhydrous dioxane and pyridine, adding 2- cyclopentyl - 4 - tart. - butyl - phenoxyglycolchlorocarbonic acid ester, stirring the mixture into ice water, acidifying and filtering to give the crude product which is then recrystallized.
Patent GB-604545-A (GB)
Title: Improvements in or relating to mountings for bogie wheels for track-laying vehicles
IPC: B62D55/108
Filed: 1945-11-26
Abstract: 604,545. Endless-track vehicles. FOOD MACHINERY CORPORATION. Nov. 26, 1945, No. 31901. Convention date, July 5, 1943. [Class 79 (i)] In track laying vehicles each track supporting roller 41 is rotatably mounted between a pair of arms 43 whose ends are resiliently mounted on the vehicle frame by means of a pair of concentric cylindrical members 50, 51 housing therebetween an elastic member 61, e.g. rubber, bonded to said cylindrical members, the inner cylindrical member 50 being mounted on the vehicle by flanged brackets 44, excessive axial movements of the resilient mounting being prevented by flanges 97 on the mounting brackets and excessive tilting movement by flanges 94. The arms 43 are provided with rubber buffers 68, 71, Fig. 1, and with extensions 69 carrying a mud scraper 70.
Patent GB-988453-A (GB)
Title: Improvements in the treatment of napped polyacrylonitrile fabrics
IPC: D06M15/643
Filed: 1962-08-20
Abstract: Napped fabrics of synthetic fibres comprising at least 80% by weight of acrylnitrile are impregnated with an aqueous solution of ethylene carbonate to prevent matting, pilling and shedding of the nap under normal laundering and wearing conditions.  The treating solution may also contain a silicone resin, an antistatic agent, e.g. a polyamine resin such as diethylene triamine cross-linked with polyethylene glycol di-iodide or an epoxy resin and a water repellent agent, e.g. "Phobotex" (Registered Trade Mark).  Aqueous solutions, which may be applied by padding, having an ethylene carbonate concentration of 0.05-50% by weight may be used and after treatment the fabrics may be dried and heated for 5-60 minutes at a temperature of 240 DEG -300 DEG F.  Woven, non-woven or knitted fabrics made from fibres comprising polyacrylonitrile, copolymers of acrylonitrile with other monomers containing >C = C< linkages, numerous examples of which are given, or blends of acrylonitrile polymers or copolymers having an overall acrylonitrile content of at least 80% by weight may be treated.
Patent GB-1206868-A (GB)
Title: An acoustic delay element for producing artificial reverberation
IPC: G10K15/10
Filed: 1968-07-04
Abstract: 1,206,868. Reverberation systems. AKUSTISCHE U. KINO-GERATE G.m.b.H. 4 July, 1968 [5 July, 1967; 26 April, 1968], No. 31966/68. Heading H4R. A spring in an artifical reverberation unit has its surface treated to produce irregularities of shape or hardness. The surface may be roughened, e.g. by etching or sandblasting in order to impart a random variation with frequency of the propagation constant of mechanical vibrations in the material of the spring. Alternatively the spring may be heat treated to effect the surface structure, e.g. to produce local zones differing in hardness.
Patent GB-537181-A (GB)
Title: Improvements in or relating to retainers for use in electric accumulators
IPC: H01M50/486
Filed: 1939-12-11
Abstract: 537,181. Synthetic resin articles. CHLORIDE ELECTRICAL STORAGE CO.. Ltd. (Hall, C. A.). Dec. 11. 1939, No. 31980. [Classes 2 (ii) and 2 (iii)] [Also in Group VIII] Retainers for use in electric accumulators comprise matted or felted filaments of a vinyl resin, the filaments preferably being fused together at their points of crossing and at the edges of the retainer. In an apparatus, whereby the felts may be made, a solution of a polymerized vinyl compound in the vessel 4 is forced (by means of compressed air injected at the pipe 7) through a nozzle 5. Compressed air jets pass through nozzles 10 surrounding the nozzle 5 serving to evaporate the solvent and to break the fibre into small filaments. The filaments collect on the moving band 14 in a matted sheet, the sheet being passed through heated rollers 20, 21 and wound for storage on to roll 23. The sheet is cut for use by means of heated shears.
Patent GB-1188288-A (GB)
Title: Magnetic Restraint for Accelerometer
Inventor: CLARKE WALTER WILSON HUGH
IPC: F16F6/00
Filed: 1966-07-15
Abstract: 1,188,288. Magnetic springs; power-storing apparatus. INERTIA SWITCH Ltd. 11 July, 1967 [15 July, 1966], No. 31980/66. Headings F2S and F2X. [Also in Division G1] A pendulum 12 supported on a spindle 17 for use as an accelerometer (see Division G1) carries magnets 19, 20 co-operating with oppositely poled magnets 21, 22 on the housing, to damp the movements of the pendulum. The housing magnets 21, 22 are axially adjustable.
Patent GB-1432865-A (GB)
Title: Mask printing devices
IPC: G03F9/00
Filed: 1973-07-05
Abstract: 1432865 Mask printing device CANON KK 5 July 1973 [5 July 1972 (2)] 31991/73 Heading G2J A mask printing device comprises observation means to assist alignment of the mask (4) and photo-sensitive plate (6) before printing, the observation means comprising means to direct a polarized light beam through the mask for illuminating the plate with the pattern during alignment observation, the light being of such a wavelength that the plate is not exposed, delay means provided in the illuminating optical path between the mask to be printed and the photo-sensitive plate to delay by a quarter wave the polarization state of the polarized light beam, and polarization analyzer means (21) arranged to receive light refelcted from the photo-sensitive plate, which analyzer means is adjustable so as to allow rejection of polarized illuminating light reflected directly from the mask but at the same time to allow transmission of the delayed polarized light reflected from the photosensitive plate. The delay means may be a birefringent quarter wave plate (20). The illumi- . nating polarized light beam, after passing through the mask, may pass twice through the quarter wave plate before being received at the analyzer means. The device may function as a contact printing device when the mask and photo-sensitive plate are located adjacent different sides of the quarter wave plate. The decive may comprise two directing means for the illuminating light beam and the analyzer means may be arranged to receive light simultaneously from two spaced apart positions on the photo-sensitive plate, each position on the plate being illuminated by one of the illuminating beams respectively, whereby the alignment of two positions may be observed at the same time see Fig. 2 (not, shown). The-device may be used in integrated circuit production in which case the photosensitive plate is a semi-conductor wafer.
Patent GB-1382299-A (GB)
Title: Thermostatic system for nuclear gyromagnetic resonance permanent magnet apparatus
IPC: G01R33/383
Filed: 1972-07-07
Abstract: 1382299 Automatic temperature control HITACHI Ltd 7 July 1972 [10 July 1971] 32012/72 Heading G3R Permanent magnet apparatus for nuclear gyromagnetic resonance spectroscopy is contained in an inner temperature controlled enclosure, itself within an outer temperature controlled enclosure, the ambient, outer and inner enclosure temperatures being of increasing value. As shown, thermistors 36, 37, sensing the temperature of magnetic yoke 20, and thermistor 38, sensing the temperature of the inner enclosure 26, form arms of a bridge circuit Fig.3 (not shown) which, if the temperature of the yoke is below a pre-set value, energizes relay 40 via amplifier 39 to supply power from A.C, source 41 to heater 24 on the magnet 19 and yoke 20. At the preset temperature, heater 24 is deenergized and power to heater 27 of inner enclosure 26 controlled by switching transistor 42 to maintain the bridge in balance i.e. to maintain the product of the yoke and inner enclosure temperatures.at a constant value. The temperature of the outer enclosure 33 and the compressed air, used to rotate the sample 23 when the apparatus is in use, are also controlled by switching transistors 46, 51 to vary the power to heaters 34, 39 respectively. More than two temperature controlled enclosures may be used.
Patent GB-411374-A (GB)
Title: Improvements in coin-freed vending machines
IPC: G07F11/16
Filed: 1933-11-17
Abstract: 411,374. Coin-freed article-delivery apparatus. WEVA WERBE-VERKAUFSAPPARATE-VERTRIEBS-GES., 170, Venloerstrasse, Ehrenfeld, Cologne, Germany. Nov. 17, 1933, No. 32089. Convention date, Nov. 17, 1932. [Class 27.] Coin-freed article-delivery apparatus of the kind wherein the articles are received from a pile in cells in an intermittently rotated delivery disc which is coupled to an operating element by an inserted coin and wherein each intermittent movement of the disc causes one of its cells to be emptied while another is being filled is characterized in that the delivery disc 7 is arranged between stationary plates 6, 6<1>, the plate 61 having a delivery aperture, and that the disc is operated by a spring controlled lever 8 pivotally supported under the plate 6<1>. The articles, e.g. tokens M, are stored in a split tube 5 and fall one by one into recesses in the disc 7, these recesses passing in succession into a position K beneath the pile. At each operation of the lever 8 the disc is rotated clockwise one step to bring the tokens to the position D corresponding to the delivery aperture in the plate 6<1>. The tokens are held secure in the tube 5 by a weight G provided with a lug 18 and spring 19 engaging respectively ratchet teeth 21 and notches 22 on the wall of the tube. A tube 5<1> may be provided in the position J for supplying tokens when the tube 5 has been emptied. An inspection window 9 at E enables the operator to see the token which will be delivered at the next operation of the apparatus. Coin-action, mechanical-connection ; coindischarging mechanism.-An inserted coin falling down a shoot 11 into the forked end 8<1> of the lever 8 engages behind a shoulder 22 on the disc 7 and on operation of the lever, the coin is moved along a channel 16 and rotates the disc until it is discharged through an aperture 26 by a spring 14. Coin-slit closing-devices.-A guard 12 carried by a spring 13 prevents coins being fed into the channel 16 when the end 8<1> of the lever 8 is not beneath the shoot 11. Fraud preventing.-A tooth turned up from the bottom of the channel 16 prevents a coin being returned along the channel. Casings.-The casing 4 is supported on a plate 2 and is provided with a cover 27 which is secured by a post 28, fixed to the base 1, engaging a socket 30 on the cover, the post having a screw-threaded bore 29 engaging with a screw 33 provided with a head 34 supported on a shoulder 35 on the socket.
Patent GB-665809-A (GB)
Title: Process for the production of methallyl chloride
IPC: C07C17/00
Filed: 1949-12-14
Abstract: Tertiary butyl chloride is heated above 300 DEG  C. for a short period, the product cooled and reacted with chlorine at 0-300 DEG  C. to form methallyl chloride and hydrogen chloride, isobutene added under such conditions that it reacts with hydrogen chloride to give tertiary butyl chloride, and methallyl chloride recovered at any time after the chlorination.  The butyl chloride is preferably recycled to the first stage.  Hydrocarbon mixtures containing isobutene such as cracked fractions, especially C4 fractions from cracking petroleum, may be used.  The initial heating step is effected for a period which may be from 0.1 second to 15 minutes. At the preferred temperatures of 350-500 DEG  C., the time may be 1 second to 3 minutes. Chlorination is preferably at 50-125 DEG  C., and 1-8 atmos., for a residence time of 0.1 second to 1 minute, and with a molar ratio of butyl chloride feed to chlorine between 1.5 and 10:1.  The chlorination product is usually condensed before adding isobutene. The proposed molar ratio of hydrogen chloride to isobutene is between 1 and 4:1, the temperature -40 DEG  to 80 DEG  C., pressure 7-35 atmos., and time 1-20 minutes.  The products are separated by a series of fractionations. Alternatively, the methallyl chloride is separated before adding the isobutene.  Specification 664,959 is referred to.
Patent GB-445436-A (GB)
Title: Improvements in and relating to bathroom cabinets and the like
IPC: A47B67/02
Filed: 1934-11-08
Abstract: 445,436. Cabinets. DOWNHAM. S. J., and DOWNHAM, H., 46, Auckland Street, Vauxhall, London. Nov. 8, 1934, No. 32116. [Class 52 (i)] A bathroom cabinet or the like 1 has a door 2 movable laterally in either direction from a central closed position. A stop or stops 7<a>, 7<b>, limits the movement and the side walls may be gapped 8, 9 to allow the inoperative stop to pass. The door may have a mirror front and the cabinet may be recessed into the wall.
Patent GB-1490417-A (GB)
Title: Low profile moulding composition comprising unsaturated polyesters and process for the production of articles therefrom
IPC: C08F290/00
Filed: 1975-08-01
Abstract: 1490417 Moulding compositions DOW CHEMICAL CO 1 Aug 1975 [5 Aug 1974] 32316/75 Heading C3P A moulding composition for the production of low profile mouldings comprises: (i) 100 parts by weight of a mixture of (I) 25-70 weight per cent of a terminally unsaturated vinyl ester having pendant half ester groups wherein said resin is prepared by the reaction of about equivalent proportions of a polyepoxide resin and an unsaturated monocarboxylic acid, followed by treatment with 0À1 mole to stoichiometric quantities, per hydroxyl group, of a dicarboxylic acid anhydride (i) 30-75 weight per cent of an ethylenically unsaturated copolymerizable monomer; (ii) 5 to 25 parts by weight of a polymeric low profile additive; (iii) 10 to 150 parts by weight of an inert filler; (iv) 0À1 to 5 parts by weight of a viscosity reducing agent which is a copolymer of a maleic acid half ester of a polyethylene glycol, which polyethylene glycol has an average molecular weight of 1,450 to 6,000 and a monoalkenyl aromatic monomer wherein said copolymer (1) contains 0À5 to 2 moles of said half ester per 100 moles of alkenyl aromatic monomer, (2) has an average molecular weight of 15,000 to 50,000. The monoalkenyl aromatic monomer may be styrene. The low profile additive is preferably a styrene-butadiene block copolymer consisting of at least 30% by weight of a conjugated diene, polybutadiene or polystyrene. The inert filler may be calcium carbonate. The compositions may also comprise an alkaline earth oxide or hydroxide as thickening agents and up to 150 parts by weight of glass fibres. Articles are produced by moulding the composition and curing, preferably by exposure to ionizing radiation, admixture with free-radical catlaysts or heating under pressure. In the Examples; component (i) is the methacrylic acid reaction product of a mixture of epoxy novolak and the reaction product of bisphenol A with the glycidyl polyether of bisphenol A, which is then reacted with maleic anhydride; component (ii) is polystyrene plus styrene/butadiene block copolymer; component (iii) is calcium carbonate, component (iv) is a copolymer of styrene and the maleic acid half ester of polyethylene glycol. To the composition are added 2,5-dimethylhexane-2,5-diper-2-ethylhexanoate, zinc stearate plus (5) 2,5-bisbenzol peroxide; (6) t-butyl perbenzoate, magnesium oxide slurry, glass fibres.
Patent GB-792329-A (GB)
Title: Elastomeric and/or resilient mount for rubber printing plates
IPC: B41F27/12
Filed: 1955-11-11
Abstract: 792,329. Printing surfaces. DALZIEL, P. B. Oct. 17, 1956 [Nov. 11, 1955], No. 32321/55. Class 100(2) An elastomeric or resilient mount for rubber printing plates is provided with a plurality of fixing lugs for co-operation with recesses formed in the printing cylinder or bed of a printing machine, the arrangement being such that the mount can be tensioned to enable the lugs to be progressively pressed into the recesses so that the mount is secured to the printing cylinder or bed of the machine soley by the reactionary thrusts arising in the mount. The mount may be made entirely of natural or synthetic rubber, or alternatively the lugs may be made of plastic or metal. In the case where the mount is made entirely or rubber the size and shape of the lugs is such that when engaged in the recesses in the cylinders or beds they are compressed. The printing plates may be attached to the mount by adhesive, e.g. rubber solution.
Patent GB-1478197-A (GB)
Title: Process for 7-beta-amino-7-s-methoxycephalosporanic acid esters and related compounds
IPC: C07D501/26
Filed: 1974-07-22
Abstract: 1478197 7# - Amino - 7α - methoxy - 3 - cephem esters ELI LILLY & CO 22 July 1974 [23 July 1973] 32399/74 Heading C2C The invention comprises the compound (III), wherein R is benzyl, p-nitrobenzyl, p-methoxybenzyl, diphenylmethyl or 2,2,2-trichloroethyl and Z is a group (A), (B) or (C) where R 3  is hydrogen, C 1-4  alkyl or phenyl; or is hydrogen, C 2-4  alkanoyloxy, C 1-4  alkoxy, C 1-4  alkylthio or a group -OCONR 1 R 2 , where R 1  and R 2  are hydrogen or C 1-4  alkyl and the preparation of a compound (I) by reacting a compound (II) with CH 3 Li to form an anionic derivative (IV); reacting the latter with t-butyl hypochlorite and acidifying to form the compound (III); reducing the latter with hydrogen in the presence of a palladium catalyst or with an alkali or alkaline earth metal dithionate at pH 7-8; and treating the reduction product at pH 4-6 in an aqueous medium containing silica gel in suspension.
Patent GB-207998-A (GB)
Title: Improvements in means for regulating the injection air pressure in internal combustion engines
IPC: F02D1/00
Filed: 1922-11-27
Abstract: 207,998. Romeyn, J. Nov. 27, 1922. Cylinders receiving liquid fuel. - A relief valve d loaded by an adjustable spring e for controlling the injection air pressure is fitted either in a high-pressure delivery pipe between the compressor and the injection nozzle, or in a pipe connecting two stages in a multi-stage compressor. The spring is adjusted by hand or by a centrifugal governor through the intermediary of a piston f subject on its lower side to the pressure of oil from the engine lubricating system, the ingress and egress of the oil being controlled by a tubular sleeve h carried by the piston f, and by a valve o in such a manner that the piston follows the movement of the valve when the latter is adjusted by hand or by the governor through the intermediary of the crank q and rod p.
Patent GB-688220-A (GB)
Title: Improvements in and relating to edible starch products
IPC: A23L1/0522
Filed: 1949-11-17
Abstract: A dry, gelatinized starch composition which forms blancmange at once on addition of liquid is prepared by mixing blancmange starch, i.e. a starch capable of forming a gel of sufficient rigidity to be moulded and to retain the shape of the mould, water, and sucrose, heat drying the mixture, and powdering the dried mixture finely.  The blancmange starch may be derived from maize, rice, arrowroot, or tapioca. Before the drying there may be added to the mixture a substance which facilitates rehydration and gelation of the starch, e.g. sodium hydroxide, calcium hydroxide, sodium carbonate, sodium bicarbonate, calcium chloride, an alkali thiocyanate.  A casein coagulant, exemplified by tartaric and citric acids and by the proteolytic enzymes trypsin, pepsin, and rennin, may be added.  Milk powder or casein may be incorporated.  Wetting agents and substances which render blancmanges firm, e.g. gelatine, gum acacia, locust bean gum, may be incorporated.  Examples are concerned with gelatinizing, roller drying, and grinding mixtures of maize starch, sucrose, and water, and such mixtures containing calcium chloride in addition, and with making blancmange compositions, for mixing into cold milk, by adding to the powders so obtained, sucrose, salt, flavourings exemplified by vanilla, cocoa, and butterscotch, and colourings, and, where desired, tartaric acid or a rennin preparation.
Patent GB-267887-A (GB)
Title: Improvements in electric windscreen wipers
IPC: H02K23/02
Filed: 1926-12-23
Abstract: 267,887. Bosch Akt.-Ges., R. March 18,1926, [Convention date]. Rotary machines; yokes. - A wind-screen cleaner is driven by an electric motor provided with magnets 3, 4, the longitudinal axes of which are located parallel to the axis of the armature 2, the magnets not being provided with windings. The ends of the bars 3, 4 are held by yoke pieces 5, 6, the latter being of magnetic material. A field winding 12 may be mounted on the yoke piece 6.