baber/WOPTO huggingface dataset:
Patent GB-532793-A (GB)
Title: Improvements in or relating to amplifiers with negative feedback
IPC: H03F3/52
Filed: 1939-09-20
Abstract: 532,793. Valve amplifying circuits. SOC. INDUSTRIELLE DES PROCEDES LOTH. Sept. 20, 1939, Nos. 26271 and 26272. Convention dates, Sept. 23, 1938 and Oct. 21, 1938. [Class 40 (v)] In a multi-stage amplifier wherein at least two of the stages that are bridged by negative feedback circuit are coupled by means of a cathode impedance. The Figure shows a push-pull amplifier with the output stage fed from cathode resistances 6 and with feedback applied from the output to the input. The resistances 6 may be arranged in series with inductance so as to reduce the voltage drop while maintaining the impedance large compared with the valve output impedance. The intervalve couplings are preferably such as to ensure constant phase displacement for all working frequencies. The invention is particularly applicable to high power class-B amplifiers.
Patent GB-172149-A (GB)
Title: Improvements connected with motor cycle sidecar attachments
IPC: B62K27/12
Filed: 1920-09-14
Abstract: 172,149. Watsonian Folding Sidecar Co., Ltd., and Watson, T. F. Sept. 14, 1920. Side-car attachments.-In means for connecting a sidecar to a motor-cycle, the sidecar or the cycle end of a connecting-stay 12 is adjustably secured to an eye-bolt 7 which is disposed within a fixed member, such as a lug 4 upon the side-car chassis, and carries a flexible member in the form of a spring or rubber cushion 8 disposed between the fixed member and a shoulder on the eye-bolt. The stay is fitted with a split clamp 13 which is secured to the stay and to the eye-bolt by a bolt 15 passed through the lugs 14 of the clamp and through the eye of the eye-bolt. As shown, the cushion at its upper end abuts against a cap 9 upon the eyebolt.
Patent GB-288490-A (GB)
Title: Improvements in or relating to operation tables for medical and surgical purposes
IPC: A61G13/04
Filed: 1927-10-05
Abstract: 288,490. Allen & Hanburys, Ltd., and Baldock, G. R. Oct. 5, 1927. Surgical operating tables.-A surgical operating-table 2 is adjusted to and secured in anv desired angular position by means of a disc wheel 9, Figs. 1 and 5, with a series of scroll-like or volute teeth 11 arranged on its face, engaging a rack 12 pivoted to the table. The table is pivoted at 4 in the, usual way to a hydraulically-adjusted standard 6.
Patent GB-361994-A (GB)
Title: Improvements in or relating to pleating devices
IPC: D06F75/30
Filed: 1930-09-03
Abstract: 361,994. Pleating. HAMILTON, M., 40, Gloucester Square, London. Sept. 3, 1930, No. 26344. Convention date, Oct. 22, 1929. Addition to 320,914, [Class 141, Wearing-apparel]. [Class 141.] The invention of the parent Specification is modified by providing different means for creasing the fabric into upstanding folds. A plate 10 bent to form upstanding strips 14 converging towards one another is arranged beneath the material. A third strip 15 is fastened to the plate at 16. The upper pleating device comprises a casing with a top surface 1 and two side walls 2 having grooves 27 for the reception of a plate 18 provided with strips 19 tapering towards one another and deepening. The plate 18 is also bent to form projections 20. In operation, the two parts of the device are not operatively connected together. The upper part 11 is attached to a flat iron and the lower part placed underneath the fabric. The two parts are then placed so that the strips 19, 10 are in a position to co-operate with the fabric interposed, and as the upper part is moved along by the flat iron the lower part is dragged with it thereby forming converging folds which gradually deepen until they enter the saw gate 22, which overturns them. The saw gate comprises a rectangular plate, as indicated in Fig. 3, with slots 24 oppositely inclined. By reversing the saw gate, the pleats are reversed.
Patent GB-1357326-A (GB)
Title: Wellpoints for de-watering ground
IPC: E21B7/18
Filed: 1970-06-01
Abstract: 1357326 Wells &c HENRY SYKES Ltd 28 May 1971 [1 June 1970] 26388/70 Heading E1F A well point for dewatering ground, comprises a tubular body 10 of shape sustaining plastics tubing having a lower closure 13 and an upper part 14 arranged to receive a suction pipe 15, the body having a series of filter openings 12 and being sheathed in a fabric sleeve 16 through which water being drawn through the perforations is filtered. The parts 13, 14 may be end caps screwed on to the body and into which the ends of the nylon sleeve may be tucked instead of being secured as shown. The end caps may have perforations. The body may be of hard plastics (PVC) tubing. The sleeve may be of nylon or other corrosion and damp resistant fabric. In use, the sleeve vibrates and produces a self-cleansing action. The well point is introduced into the ground within a metal placement casing provided with water pressure lances. A metal rod may be put down the tube 15 to engage the cap 13 and assist downward movement of the well point. The casing is removed and the pipe 15 connected to a header pipe and suction pump. The tubular body, suction pipe and nylon sleeve may be stored on reels, and lengths of each cut and the well point assembled on site. The well point may be used as a stand pipe for water supply.
Patent GB-1121165-A (GB)
Title: Improvements in or relating to the measurement of liquid fuel consumption of automobiles
IPC: G01F9/00
Filed: 1965-06-23
Abstract: 1,121,165. Fuel tanks; indicating fuel content. K. S. ALDERTON. 22 June, 1966 [23 June, 1965], No. 26534/65. Heading B7H. [Also in Division G1] Apparatus for signalling when an automobile engine has consumed a predetermined volume of liquid fuel comprises an auxiliary fuel tank 16 and a multichannel valve 4 which can be selectively set to positions (a) to open channel 3, 5 for the engine 10 to be supplied from a main tank 1 (b) to open channels 3, 5 and 12, 13 for the engine 10 and auxiliary tank 16 to be supplied simultaneously from the main tank 1 (c), (d) or (e) to close the channels 3, 5 and 12, 13 to isolate the main tank 1 and stop the supply to the auxiliary tank 16 whilst opening channel 26, 27 or 18, 19 or 21, 22 to supply the engine 10 from the auxiliary tank, the auxiliary tank having means whereby signals are given when the level of fuel therein sinks to selected predetermined levels. The open ends 25, 17 and 23 of pipes 24, 15 and 20 lie on the vertical axis of the auxiliary tank 16 and the other ends communicate with a common channel 6 to a pump 8 through the inlet ports 26, 18 and 21 of the valve 4. To prepare for a fuel consumption test when running normally the valve is turned from position (a) to (b), when tank 16 overflows through a pipe 28 to the air intake 29 the engine cuts out signalling thereby that the valve should be turned to position (c), when the level falls to allow air to enter the end 25 of pipe 24 the engine cuts again signalling that the mileometer should be read as the valve is turned to position (d) or (e), and when air enters the end 17 of pipe 15 or the end 23 of pipe 20 the cutting of the engine signifies that say a tenth or a half a gallon of fuel has been consumed and a further reading of the mileometer enables the consumption in miles per gallon to be calculated. To hinder theft when the vehicle is unattended, the valve can be set so that the engine will be starved of fuel after an interval.
Patent GB-1480860-A (GB)
Title: Process for treating naphtha
IPC: C10G31/08
Filed: 1975-06-23
Abstract: 1480860 Treating pyrolysis naphtha TEXACO DEVELOPMENT CORP 23 June 1975 [8 July 1974 23 Dec 1974] 26538/75 Heading C5E Pyrolysis naphtha is heated with water under non-catalytic conditions to polymerize olefinically unsaturated components. A stream 13 containing 100 parts by weight of steam-cracked naphtha by-product from the production of ethylene and 20-200 parts of water is heated in a tubular furnace 14 at 500-800‹ F. and up to 4000 p.s.i.g. for 0À2-12 hours. The product is condensed at 16 and separated into a water stream 19 which is recycled and the pretreated naphtha stream 23. The naphtha 23 is flashed into a tower 26 to separate polymer and C 9  plus hydrocarbons 27 from the overhead 28. The naphtha 28 is hydrogenated with hydrogen 31 at 400-700‹ F. and 200-2000 p.s.i.g. using a catalyst, e.g. of 2-5% CoO and 8-15% MoO 3  on gamma alumina. The hydrogenated effluent 32 can be extracted at 33 to separate an aromatics product 34 and a paraffin and olefin stream 35.
Patent GB-684198-A (GB)
Title: Scaffold support
IPC: E04G5/06
Filed: 1950-11-01
Abstract: 684,198. Scaffolding brackets. NORMANDEAU, L. and STEELE, S. G. Nov. 1, 1950 [Feb. 25, 1950]. No. 26623/50. Class 20 (ii). [Also in Group XXV]. A scaffold bracket adapted to be supported on a structural post 4 comprises a pair of pronged jaws 1 pivoted together at 2 and having intersecting curved slots 5 engaged by a pin 6 integral with the supporting arm 9, which has an extension 12 abutting the post 4. The load on the arm 9 moves the pin 6 outwardly, thus swinging the prongs 3 towards each other to grip the post 4.
Patent GB-953740-A (GB)
Title: Improvements relating to angularly-movable ventilator window assemblies
IPC: E06B3/34
Filed: 1961-07-22
Abstract: 953,740. Vehicle hopper windows. AUSTER Ltd., and W. W. SMALL. Oct. 22, 1962 [July 22, 1961], No. 26645/61. Heading E1J. [Also in Division F4] In a hopper type ventilator window particularly for vehicles the sash 6 is detachably connected to a separate carrier frame 7 hingedly mounted to the outer or fixed frame 1. The carrier frame has a U-form comprising the bottom rail 10 hingedly connected to the lower run 8 of the frame 1 and two upstanding plates 11 one at either end, to which the glazing frame 6 is removably attached as by screws 17, and the plates 11 are coupled to the draughtexcluder walls 18 by a pair of telescopic overdead-centre devices 22. The bottom rail of the sash 6 has a downwardly facing channel section 14 engaging a bar 12 on the top side of the rail 10. The draught excluder plates 18 have slots 19, closable by detachable plates 20, removed when the sash is to be withdrawn after removing screws 17, to give clearance for the sash. Spring 31 retains the sash closed against weather strip 3 on the fixed frame 1.
Patent GB-425456-A (GB)
Title: Improvements in the manufacture and production of 2-acetylamino-3-chloranthraquinone
IPC: C07C233/00
Filed: 1934-09-17
Abstract: Pure 2-acetylamino-3-chloranthraquinone is obtained by subjecting the mixture of isomeric chloraminoanthraquinones obtained by ringclosing 2-(3<1>-amino-4<1>-chlorbenzoyl)benzoic acid with acid condensing agents to acetylation, and separating the product, which is difficulty soluble in the solvent or suspending agents employed.  The condensation, acetylation and isolation of the product may be carried out without isolation of the intermediate products.  According to examples, isomeric chloraminoanthraquinones obtainable as described above by the process referred to in German Specification 148,110 are acetylated in nitrobenzene with acetyl chloride or in oleum with acetic anhydride, and the precipitated 2-acetylamino-3-chloranthraquinone isolated by filtration.
Patent GB-261897-A (GB)
Title: Improvements in or relating to filters for air and gases
IPC: B01D46/12
Filed: 1925-10-26
Abstract: 261,897. Hall, D., Kay, J. H., and Hall & Kay, Ltd. Oct. 26, 1925. Filtering.-Flannel or other pervious fabric 6 is stretched over skeleton or open frames 3 arranged zig-zag, and wire netting 7 forms a backing over parts of the frames, preventing injury to the filter cloth while it is being cleaned bv brushing. Wires 8 prevent, bagging of the fabric. In a modification, the netting 7 may cover the whole of the fabric, the wires 8 being omitted.
Patent GB-1428370-A (GB)
Title: Rotary ultrasonic testing apparatus
IPC: G01N29/26
Filed: 1972-06-08
Abstract: 1428370 Ultrasonic inspection devices BRITISH STEEL CORP 8 June 1973 [8 June 1972] 26826/72 Heading H4D Ultrasonic testing apparatus includes a probe assembly mounted for rotation about a test article so as to transcribe a close-pitched helix about the article, the probe assembly comprising a number of ultrasonic probes, each being detachably mounted for separate individual alignment adjustment relative to the test article. Ring 9 is rotated about the article and carries four probes, only one being shown in detail. The probe, being a cylinder with its axis parallel to the rotation axis and having a transducer crystal on one side, is held in place by a member 53. A worm 54 and worm-wheel 52 assembly is used to rotate the probe to adjust its alignment relative to the article, an operating knob 58 being provided. A clamp 60 is provided to lock the probe in position. A printed circuit board 61 connects the probe to circuitry. The probe assembly is detachably mounted to the remainder of the apparatus by quick release clips 40.
Patent GB-371752-A (GB)
Title: An improved process for producing motor benzol which is stable on storage
IPC: C10G17/06
Filed: 1931-09-25
Abstract: Hydrocarbon motor spirit is freed from resins and resin-forming compounds and so rendered stable on storage by treatment at atmospheric pressure with diluted sulphuric acid below 40 DEG  C. and then with alkali while hot.  Neutralization with cold alkali may precede the hot alkali treatment.  For example, crude motor spirit is stirred with 3 per cent of 60 DEG  B<\>ae acid, separated, washed with 1 per cent of 18 per cent soda lye, and distilled with 1 per cent of 18 per cent lye first by indirect and then by direct steam. Or the vapours of the neutralized oil may be passed through hot soda lye.  Specification 4431/03, [Class 91, Oils &c.], is referred to.
Patent GB-849930-A (GB)
Title: Stabilizer for frozen sweet aqueous-base comestibles, and product and method utilizing the same
IPC: A23G3/02
Filed: 1957-08-26
Abstract: A stabiliser for ice cream comprises a gum suspended in a water free organic liquid.  The gums preferably used comprise locust bean, karaya, pectin, carageen, sodium alginate and sodium carboxymethylcellulose.  The prepared liquids are ethyl alcohol, glycerine, propylene glycol, glyceryl oleolate, sorbitan stearate, butter oil or vegetable or mineral oil.  The gums may be 10% and the liquid 90% of the stabiliser but may be up to 80% and 20% respectively forming a paste.  The mixture may be milled to mix thoroughly and may be homogenised and may be added to the ice cream mix just before freezing.  More than one gum and more than one liquid may be used to make a single stabiliser.  To prevent separating out during storage, there may be added edible esters of fatty acids e.g. glyceryl monostearate as a suspending agent. Other suspension agents may be finely divided casein, activated carbon bentonite, silica, alumina and salts in general.  Suitable emulsifying agents may be sodium stearate, potassium laurate, sodium lauryl sulphate, sodium sulphosuccinate, magnesium oleote aluminium stearate, polyoxyethylene fatty alcohol ethers, polyglycol fatty acid esters polyoxyethylene modified fatty acid esters, polyoxyethylene-polyol fatty acid esters and others e.g. like compounds of lecithin, cholesterol, and lanolin. Emulsifiers such as butter fat, glycerol sorbitol, fatty acids, stearate, oleic or palmetic may be used.
Patent GB-742764-A (GB)
Title: Improvements in or relating to hydroforming catalyst and process of using the same
IPC: C10G35/14
Filed: 1953-10-01
Abstract: Microspherical alumina particles suitable for use as a catalyst carrier in a fluidized hydroforming process are prepared by mixing an aqueous solution of aluminium sulphate with an aqueous solution of sodium aluminate, adjusting the pH of the mixture to 9-10, filtering the resulting precipitate, reslurrying with water, and spray-drying. Precipitation takes place at 40 DEG -120 DEG F. and the pH is adjusted by the addition of sulphuric acid.  Preferably the slurry formed contains about 1.2 per cent by weight of alumina. From 0.5-5 per cent of silica may be incorporated in the carrier by adding sodium silicate solution at the precipitation stage. The spray-dried microspheres may be washed several times with acidified water and then re-dried.  To prepare hydroforming catalyst the alumina is combined with oxides of molybdenum, chromium, or titanium or with platinum or palladium, by impregnation or by dry mixing and heating. The density of the catalyst in the fluidized state may be increased by adding gluconic acid during the precipitation of the carrier.  A flow diagram (Fig. 1, not shown), relates to the preparation of the carrier and the Specification includes tables showing the hydroforming activities of molybdenum oxide catalysts prepared from the improved carrier.
Patent GB-317251-A (GB)
Title: Tool boxes for use on motor vehicles
IPC: B60R11/06
Filed: 1928-09-20
Abstract: 317,251. Riley, A. Sept. 20, 1928. Luggage and like holders.-For the carriage of tools and spare parts a tray 2 is disposed inside the bonnet 4 immediately over the engine and extends substantially across the whole width of the bonnet. The tray is preferably supported at its rear end by a channel member 5 co-operating with a guide channel 6 on the dashboard 7 or some part adjacent thereto, such as a shelf 8 carrying the fuel tank 9, while the front end may be supported by similar channel members on the tray and radiator or, as shown, by means of dowel pins 14 extending through radiator brackets 15 and engaged by spring catches 16. Alternatively, the tray may be supported from the stay 19 extending between the dashboard and radiator. To prevent the transmission of noise from the engine, the tray is provided with a felt lining 3 and with a felt-lined lid 20, while rubber or like packing-pieces 22 are disposed between the sides of the tray and sides of the bonnet and between the lid 20 and top of the bonnet.
Patent GB-1247787-A (GB)
Title: Improvements in or relating to architraves
Inventor: PETITT REGINALD ERICK
IPC: E06B1/34
Filed: 1969-05-28
Abstract: 1,247,787. Architraves. R. E. PETITT and P. J. BETTS. 22 May, 1970 [28 May, 1969], No. 26988/69. Heading EIJ.  An architrave corner member comprises a rectangular block 1 having a planar lug 4 projecting from each of two adjacent sides 3 and a fixing hole 5 for a screw, the two sides abutting against the ends of the top and side architrave members with the lugs 4 extending beneath the architrave members and being gripped between these and the wall. The block 1 may be hollow or solid, and may. be made of plastics, metal, wood, or a mixture of wood chips and thermosetting binder. The fixing hole 5 is preferably at the centre of the block I, and may .be countersunk to receive the head of the fixing screw, a decorative plastics cap 10 being provided with a cylindrical lug 11 to engage in the hole 5 over the screw head.
Patent GB-407416-A (GB)
Title: Improvements in or relating to a method of treating trees
IPC: A01G7/06
Filed: 1932-09-29
Abstract: 407,416. Treatment of growing plants. CASE RESEARCH LABORATORY, Inc., 203, Genesee Street, Auburn, New York, U.S.A.-(Assignees of Case, T. W. ; Auburn, and Couch, F. L. ; Cascade-on-Owasco, Auburn, New York, U.S.A.) Sept. 29, 1932, No. 27041. Convention date, Aug. 25. [Class 6 (ii).] A method of treating a tree having a section of bark removed consists in inserting a non-living fluid-transferring medium in the space from which the bark has been removed and securing it in position with its edges in substantial contact with spaced edge portions of the bark. The bark and cambium layer are cut away to provide upper and lower straight edges 3, 4, rows of tacks are driven into the bark near the edges 3, 4, and cotton wicking, linen strips, or the like 7 is wound up and down around the tacks so as to form a continuous layer covering the part from which the bark has been removed. Tape.8 or the like is then wound loosely round the wicking and the upper and lower parts of the latter cut off at the edges 3, 4 and the tacks removed. Wicking or the like 9 is then wound round the tree above and below the tape 8, and the wicking 7 damped with water or other fluid. Finally a covering 10 of cheese-cloth or the like is wound on and the whole rendered impervious to light, air, and water by covering or impregnating with waterproof paint &c. In another arrangement wicking is secured in a recess in the bark by staples and is covered with transparent material. Sunlight may be excluded by a skirt-like member which may be lifted to permit of inspection of the wicking. Medicine or dye may be placed on the wicking. Specification 407,417 is referred to.
Patent GB-995605-A (GB)
Title: Improvements relating to hypodermic injection apparatus
Inventor: STEPHENS RICHARD RUSSELL
IPC: A61M5/30
Filed: 1960-08-04
Abstract: 995,605. Hypodermic injectors. AMALGAMATED DENTAL CO. Ltd. June 23, 1961 [Aug. 4, 1960], No. 27099/60. Heading A5R. A needleless hypodermic injector includes a plunger 17 for expelling medicament from a holder 5 through a jet aperture 13, thrust being directly transmitted to the plunger by a fluidoperated piston 15 of larger area, the piston cylinder being connected by a flexible pipe to an external source of pressurized fluid. A medicament cartridge 6 is secured in the medicament holder 5 by a screw cap 10. A rear cartridge stopper 8 is engaged by the plunger 17 and a forward cartridge closure diaphragm 9 is penetrated by a needle 14 on assembling a delivery tube 11, having a fine jet aperture 13, to the injector by the cap 10. The stroke of the piston 15 and the plunger 17 is limited by engagement of shoulders 21, 27 with corresponding shoulders 22, 28 on the cylinder and the medicament holder 5. The medicament holder is connected by screwthreads 26 to the pneumatic cylinder 1 so that it is longitudinally adjustable to vary the penetration of the plunger into the cartridge according to the dose to be ejected. The edge of a cap 22, which is secured to a collar 23 of the medicament holder, indicates the dose to be delivered on a scale on the cylinder 1. In a similar injector (Fig. 3, not shown), the piston is operated hydraulically. The piston cylinder 30 (Fig. 4) is connected by a flexible pipe to an hydraulic cylinder 52 in which a plunger 53 is moved by a lever linkage 54 operated by a plunger 56 moved in a cylinder 57 by compressed air supplied abruptly through a snap-action valve 60. The valve 60 may be operated pneumatically by a pedal or push-button.
Patent GB-275051-A (GB)
Title: Improvements in or relating to multiple-filament electric incandescent lamps, vacuum tubes and the like
IPC: H01K3/30
Filed: 1926-10-29
Abstract: 2.75,051. Cristesco, C. Oct. 29, 1926. Addition to 245,777. No Patent granted (Sealing fee not paid). Vacuum tubes.- In multiple-filament valves having the filaments connected to selective contacts arranged in the cap, and the foot-tube formed integrally with the bulb in the blowing operation and then severed therefrom and fitted into the neck of the bulb with the filaments &c. attached, as described in the parent Specification, the neck of the bulb and the foot-tube are correspondingly corrugated, as shown in Fig. 1, and the operation of replacing the filaments is started by separating the neck and foot-tube by cutting between corrugations by a pair of hot tongs 61, Fig. 2, the several corrugations providing for many renewals. To co-operate with the several filaments the grids 52 and plates 53 of valves may be shaped as shown in Fig. 6, comprising a number of circles corresponding to the number of filaments and merging into one another. In a modification. the grid is shaped as shown at 52, Fig. 8, to enclose the filaments f<1>, f<2>, &c., and the plate comprises two concentric cylinders 60, one inside and the other outside the grid, connected together through a space in the grid. To minimise capacity in the valve, the seals of the several leads are spaced around an annular seal between the foot-tube 2 and the exhaust tube 2<1>, Fig. 4.