baber/WOPTO huggingface dataset:
Patent GB-507902-A (GB)
Title: A new or improved insecticide
IPC: A01N25/02
Filed: 1937-11-16
Abstract: 507,902. Insecticides. O'KANE, W. C. Nov. 16, 1937, No. 31474. Convention date, Nov. 24, 1936. [Class 81 (i)] An insecticide in the form of a concentrate to be largely diluted with water for use, comprises a giyceride oil, a contact insecticide, a volatile liquid in which the contact insecticide is soluble and which is soluble in the oil, and an emulsifying agent soluble in the other ingredients of the concentrate. The concentrate does not contain any material quantity of water and is preferably anhydrous. Oils speciiied as examples are corn oil, coconut oil, cottonseed oil, peanut oil, lard oil, fish oil, soya bean oil, castor oil, and mixtures thereof; contact insecticides are pyrethrum extract, nicotine base, strychnia, and synthetics such as amines and thiocyanates ; volatile liquids may be aliphatic or 'aromatic compounds, terpenes, chlorinated compounds, esters, oxides or ketones, and higher alcohols, examples being petroleum hydrocarbons, benzene, turpentine, carbon tetrachloride, chlorinated ethylenes, monochlorbenzene, 1.2.4-trichlorbenzene, amyl acetate, dibutyl phthalate, ethyl benzoate; mesityl oxide, pine oil and carbon disulphide; emulsifying agents are " Emulphor A " (Registered Trade Mark), sulphonated olive oil, sodium naphthenate, diglycol laurate, sulphonated fish oil, Albasol, and sulphonated castor oil. The proportion of emulsifying agent is preferably such that the concentrate readily emulsifies in water but gives an unstable emulsion which breaks on application. An example relates to a mixture of corn oil, turpentine, pyrethrum extract and " Emulphor A." Stomach poisons and /or fungicides may also be added to the concentrate, examples being copper zeolite, sulphur, arsenic compounds and fluorine compounds.
Patent GB-667373-A (GB)
Title: Improvements in or relating to motor cycles
Inventor: DOLPHIN JOHH ROBERT VERNON
IPC: B62K3/02
Filed: 1948-12-06
Abstract: 667,373. Spring frames for motor-cycles. BROCKHOUSE & CO., Ltd., J. Dec. 6, 1949 [Dec. 6, 1948], No. 31480/48. Class 136(iii) In a motor - cycle comprising a power unit, load supporting means and a spring suspension between the front and rear wheels, the spring suspension comprises a pair of bar springs 17 extending longitudinally of the vehicle in laterally spaced relationship and connected to the front and rear wheels, means connecting the two springs rigidly together intermediate their extremities, and means for connecting the dead load, including the power unit 11, and the load-carrying means to the two springs centrally of their length. The springs 17 are connected by brackets 16 on a frame member 12. The rear axle is suspended by links 20 to the springs 17 and by links 21 to the frame. The front ends of the springs 17 are connected by links 24 to trunnions 25 formed on a collar 26 which is slidably mounted on the steering column 28. An upwardly extending frame member 13 is connected by links 33, 34 to the lower end of the column 28. Steering movement is transmitted to a steering fork 45 by an arm 53 carried on the column 28. A tube 43 is rigidly connected to the fork 45 and slides on a spigot 54 carried by the arm 53. The motor-cycle is provided with a sheet metal housing 60 comprising a front part 62 connected to the frame member 13 and a rear part 61 hinged at 65 to the part 62 to allow access to the power unit 11. The underside of the rear housing 62 rests on a bearing washer 59 carried by a strut 56 which is mounted on the rear end of the frame. The driver's seat 68 is hingedly mounted above the washer 59 and may be swung upwardly to expose the filler cap 70 of the fuel tank 57 which is supported by the strut 56. A locker space 73 having a hinged lid 74 is provided in the housing behind the seat.
Patent GB-300609-A (GB)
Title: Improvements in and relating to railway points and switches
IPC: B61L5/02
Filed: 1928-10-30
Abstract: 300,609. Pothion, L. A. Nov. 16, 1927, [Convention date]. Point-tongues, arrangement of.-In points with one tongue l shorter than the other tongue l<1>, the distances from the nose of the short tongue to the running and back faces' of the long tongue are respectively less and greater than the distance from the running face of one wheel tyre to the back of the other tyre. The tongues may be connected by an oblique rod e, but the usual rods may be used by extending the short tongue below its running face, thus making the actual lengths of the tongues equal. Specification 310,204 is referred to.
Patent GB-414257-A (GB)
Title: Device for taking multicoloured photographic pictures
IPC: G02B27/14
Filed: 1933-11-13
Abstract: 414,257. Colour photography. RECKMEIER, E., 112, Lindenstrasse, Berlin. Nov. 13, 1933, No. 31578. Convention date, Nov. 14, 1932. [Class 98 (ii).] In multi-colour cameras exposure of the side colour records to direct rays of light is prevented by the arrangement of the side colour record obliquely to the axis of the lens so as to be completely outside the range of direct light rays. As shown, the frame of the side colour record 8 is arranged obliquely so as to be completely out of range of direct light rays 9 entering the camera body 5 through the lens 1 and not reflected from the light distributing surface 7<1>, which is placed at an angle of more than 45‹ to the lens axis and may be a semitransparent mirror or a prism.
Patent GB-814740-A (GB)
Title: Vinyl-substituted silica aerogels
IPC: C08G77/00
Filed: 1955-11-04
Abstract: A vinyl-modified silica aerogel is made by (1) cohydrolysing a vinylchlorosilane and a silicon tetrahalide to yield a gel; (2) dissolving the gel in aqueous alkali metal hydroxide; (3) treating the resulting solution with an acid, e.g. HCl or H2SO4, while maintaining the temperature below room temperature, until the pH is from 2 to 3 (4) precipitating the alkali metal salt formed from step (3) with methanol or ethanol and removing the precipitate by filtration; (5) ensuring the removal of all alkali metal ions by passing the solution through an ion-exchange resin; (6) autoclaving the alcoholic solution at a temperature and pressure at least equal to the critical constants of the mixture; and (7) thereafter releasing the vapours formed in the pressure reactor while continuing to maintain the temperature between 275 DEG  and 375 DEG  C.  The vinyltrichloro-, divinyldichloro- or trivinylchlorosilane is used in amount, e.g. of 5 to 50 per cent, by weight of the total vinylsilane-silicon tetrahalide (preferably the tetrachloride) mixture.  An example is given.  Specifications 607,426 and 607,427, [both in Group IV (a)], are referred to.ALSO:A vinyl-modified silica aerogel is made by (1) cohydrolysing a vinyl chlorosilane and a silicon tetrahalide to yield a gel; (2) dissolving the gel in aqueous alkali metal hydroxide; (3) treating the resulting solution with an acid, e.g. HCl or H2SO4, while maintaining the temperature below room temperature, until the pH is from 2 to 3; (4) precipitating the alkali metal salt formed from step (3) with methanol or ethanol and removing the precipitate by filtration; (5) ensuring the removal of all alkali metal ions by passing the solution through an ion-exchange resin; (6) autoclaving the alcoholic solution at a temperature and pressure at least equal to the critical constants of the mixture; and (7) thereafter releasing the vapours formed in the pressure reactor while continuing to maintain the temperature between 275 DEG  and 375 DEG  C.  Vinyl silanes specified are vinyltrichloro-, divinyldichloro- and trivinylchloro-silanes, and are used in amount e.g. of 5 to 50 per cent by weight of the total mixture of vinyl chlorosilane and silicon tetrahalide, which is preferably the chloride.  An example is given.  The products may be used for reinforcing silicone rubbers containing Si-bonded vinyl or allyl radicals, natural or synthetic rubber-containing ethylenic unsaturation (e.g. butyl, GR-S and perbunan), or addition polymers. Thus, the aerogels may be copolymerized with monomers, e.g. styrene, methyl- or ethyl-acrylate, methyl methacrylate or acrylonitrile, or with vinyl-containing polysiloxanes, in the presence of inorganic or organic peroxides, e.g. benzoyl peroxide and t-butyl-perbenzoate, or in the presence of S in the case of ethylenically unsaturated rubbers, bulk or emulsion polymerization techniques being used. Uses: the reinforced silicone rubbers find use as gasket material or electrical insulation.  Specifications 607,426, 607,427, 785,384 and 797,606 are referred to.
Patent GB-324671-A (GB)
Title: Improvements in and relating to fire escape or general emergency ladders
IPC: E06C1/56
Filed: 1928-10-31
Abstract: 324,671. Hutchinson, W. V. Oct. 31, 1928. Ladders.-Fire-escape ladders of the flexible type and in which the rungs are nested, when the ladders are out of use, within a frame having slotted side members, has a crossbar 5 fitted to the frame to engage the sides of a window frame and support the upper end of the ladder. The rod may be telescopic and provided with projections to engage the window frame. The bottom ends of the frame may be pointed so that, after the ladder has been discharged thrcugh the window, the frame can be drawn in and the points placed on the floor of the room support the frame in upright, position. The upright sides of the frame are connected by cross-bars 9, which serve as means for climbing from the inside of the room to the ladder. In the case of long ladders, two or more slotted frames may be secured to the cross-bar. The rungs 14 are secured to the flexible sides 15 by means of soft metal sleeves 16 pressed into close engagement with the flexible sides. A storage box 30 for the ladder may be provided, having slots for the reception of the cross-bar and provided with a lid 32. Interengaging or overlapping side bars 18 may be provided on some of the rungs to act as stays to support the ladder away from the wall.
Patent GB-537119-A (GB)
Title: Improvements in or relating to time base circuits for cathode ray tubes
IPC: H03K4/43
Filed: 1939-12-07
Abstract: 537,119. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and MONTGOMERY, W. A. Dec. 7, 1939, No. 31703. [Class 40 (v)] In a time-base circuit for feeding the deflecting coils of a cathode-ray tube, frequency and phase distortion due to the leakage inductance of the output transformer are reduced by feeding back to the input circuit a voltage derived from the deflecting current, by a transformer T2, the primary of which is in series with the deflecting coils L2 A preceding amplifier V may be used to reduce frequency distortion at the lower frequencies Specification 535,387 is referred to.
Patent GB-1214214-A (GB)
Title: A transportable telephone exchange apparatus
IPC: H05K7/16
Filed: 1968-07-03
Abstract: 1,214,214. Cable racks. HITACHI Ltd., and NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 3 July, 1968 [14 July, 1967], No. 31712/68. Heading H2C. [Also in Division H1] In telephone exchange apparatus which can be transported from one location to another comprising a generally box-like container 11, a plurality of bays 12 arranged to form at least two parallel bay blocks 17, 18, some of the bays 12a being immovable and others 12b being swingable, main and subsidiary cables 36, 37a, 37b are supported in the spacing between the top of the bays 12a, 12b and the roof of the casing 11 on the beams 27a. 27b as shown in Fig. 3. In order to avoid the main cable 36 from drooping an auxiliary cable rack 40 is spanned between the pairs of beams and these racks 40 are selectively disposed at suitable positions. Auxiliary cable racks 41 are also spanned between adjacent beams 27a, 27b so that subsidiary cables 37a, 37b can be passed over them and guided into the space between opposite bays. The subsidiary cables are bound to supporting members 42, 43. The container casing 11 is dustproof and waterproof and may be thermally insulated from the external atmosphere.
Patent GB-281319-A (GB)
Title: Improvements in or relating to multi-valve amplifying or receiving circuits
IPC: H04B1/16
Filed: 1927-11-25
Abstract: 281,319. Siemens & Halske Akt.-Ges. Nov. 26, 1926, [Convention date]. Thermionic amplifiers.-In a mainsfed receiving-set. the cathode current for the initial valve stages is supplied solely by the discharge stream passing through the final valve stages. This keeps the periodic frequency of' the mains away from the sensitive part of the set. The plate voltage for all the valves is derived from the mains through a rectifier g and smoothing circuit s. The filament current to the last valves r4, r5, which are arranged in push-pull, is taken directly from the A.C. mains through a transformer t. The discharge stream passes from the plates of these valves to the filaments, and thence through chokes f, h, b and the series filaments of the valves r3, r2, r1, to earth through a biasing resistance v, the grids on all the valves being taken directly to earth, as shown. The effect of existing speech-frequency fluctuations is minimized partly by the chokes f, h, b, and a bye-pass condenser C, and partly by the push-pull arrangement of the valves r4, r5 and by the heat inertia of the filaments. In addition a variable resistance w shunted across the valve r5 tends to steady the output. A floating battery may replace the condenser c. The output is taken off from the leads a.
Patent GB-1422896-A (GB)
Title: 2-hydrxyphenyl-1-oxa-4-azaspiroalkane derivatives
IPC: C07D263/52
Filed: 1974-07-18
Abstract: 1422896 1 - Oxa - 4 - azaspiroalkanes WARNER-LAMBERT CO 18 July 1974 [19 July 1973] 31840/74 Heading C2C 2 - (3<SP>1</SP> - Hydroxyphenyl) - 1 - oxa - 4 - azaspiroalkanes of general formula wherein A is a carbocyclic ring (5-8C), optionally substituted by alkyl (1-6C) radicals or hydroxy groups, the ring being optionally bridged and containing one or two double bonds, preferably compounds in which ring A is a carbocyclic ring of formula wherein R 1 , R 2 , R 3  and R 5  the same or different may be hydrogen atoms or straight or branched chain alkyls up to 3C ; R 4  is a hydrogen atom, an hydroxyl group, methyl radical or with R 5  a straight or branched alkylene bridge (up to 3C); n is 1, 2 or 3 and the dotted line indicates the optional presence of a double bond, e.g. 2- (3<SP>1</SP>-hydroxyphenyl) - 1 - oxa - 4 - azaspiro[4,6]- undecane as free base, or salt, are prepared by reacting 1-(3<SP>1</SP>-hydroxyphenyl)2-aminoethanol with a ketone in a polar solvent preferably between 20‹ and 140‹ C. Examples describe the preparation of 2 - (3<SP>1</SP> - hydroxyphenyl) - 1 - oxa - 4 - azaspiro- [4,5]decane, and -undecane, 7,9,9 - trimethyl- 2 - (3<SP>1</SP> - hydroxyphenyl) - 1 - oxa - 4 - azaspiro- [4,5]dec - 6 - ene, 6 - methyl - (6,9 - endodimethylmethylene - 2 - (3<SP>1</SP> - hydroxyphenyl)- 1 - oxa - 4 - azaspiro[4,5]decane, 9,9 - dimethyl- 7 - hydroxy - 2 - (31 - hydroxyphenyl) - 1 - oxa- 4 - azaspiro[4,5]dec - 6 - ene. The compounds may form salts with pharmacologically compatible inorganic or organic salts and as pharmaceutical compositions are used to treat circulatory disease and hypotonias.
Patent GB-221714-A (GB)
Title: Improvements in or relating to gas turbines
IPC: F02C7/08
Filed: 1923-12-20
Abstract: 221,714. Lorenzen, C. Dec. 20, 1923. Plate apparatus.-A heat exchanger, in which turbine exhaust gases circulating in the direction of the arrows 4 heat air circulating in the direction of the arrows 6, is formed by two spiral metal sheets 1, 2 spaced apart by distance-pieces 7 or by spiral grooves 8 in suitable frames, the deeper grooves towards the centre allowing for expansion. Several groups of spiral sheets may be used, grooves being formed in both sides of the frames.
Patent GB-960296-A (GB)
Title: Improvements in or relating to bottle caps
Inventor: WILCOX ISAAC LOUNSBURY
IPC: B65D41/48
Filed: 1962-08-20
Abstract: 960,296. Bottle caps. SEALRIGHT-OSWEGO FALLS CORPORATION. Aug. 20, 1962, No. 31950/62. Heading B8T A ventable bottle cap moulded of thin plastics material comprises a discoidal portion 10, which is provided with a venting aperture 23 and contains an upwardly extending projection 24 near the inner vertical wall 11 of an annular portion, which tightly fits the bead of the bottle 20, and includes an outer wall or skirt 13, which terminates in a re-inforcing ridge 15. A paperboard disc 26 fits on the projection 24, frictionally engages the wall 11, and contains a removal tab 28. Specification 841, 340 is referred to.
Patent GB-341139-A (GB)
Title: Improvements in or relating to electron discharge tube relays
IPC: H01J17/14
Filed: 1929-10-21
Abstract: 341,139. Discharge apparatus. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and MORGAN, R. B., 5, Cambridge Road, Hove, Sussex. Oct. 21, 1929, No. 31989. [Class 39 (i).] Electric discharge tube relays operating with gas ionization comprise an elongated cathode c heated to emit electrons, an anode d clear of the cathode and on an extension of its longitudinal axis, and means to establish a magnetic field parallel to the cathode between the cathode and anode. The space discharge proceeds from the outer surface of the cathode and is increased by the field. A cylindrical starting anode b may be connected first to the anode d and then to earth. The anode d is a disc normal to the axis of the cathode c. The envelope a may contain sufficient mercury to saturate it under operating conditions. To control the discharge, the field is varied by varying the current through an electromagnet or coil or by moving a permanent magnet between stops or moving part of the magnetic circuit of a magnet. Control of apparatus in synchronism by moving parts of machinery is referred to.
Patent GB-137043-A (GB)
Title: Improvements in and relating to Adjustable Supports for Flat Feet.
Inventor: WOLF SIMON
IPC: A43B7/14
Filed: 1919-12-22
Abstract: 137,043. Wolf, S. Nov. 5, 1913, [Conven tion date]. Foot-arch supports.-An appliance adapted to be adjusted to varying curvatures comprises a flexible plate a riveted to a leather sole b. Two tansioning-bands g are pivotally attached by rivets h to opposite corners of the plate a and by rivets i to a central member c which has a screwthreaded lug c' engaging a screw d, the rotation of which moves the part c, and by thus varying the tension of the bands g causes the plate a to assume the desired curvature.
Patent GB-1063907-A (GB)
Title: Universal joint
IPC: F16D3/41
Filed: 1964-08-06
Abstract: 1,063,907. Universal joints. BORG-WARNER CORPORATION. Aug. 6, 1964 [Aug. 14, 1963], No. 32087/64. Heading F2U. Each yoke of a Hooke's type joint is provided with a tie-rod 50, or rods 79 (Fig. 4, not shown), across the arms 11 which are thereby maintained in fixed spaced relation to prevent flexure, and consequential misalignment of needle roller bearings D. As shown, the tie-rod 50 is secured each end by screws to the yoke arms of the joint which comprises a cross-member C mounted by needle rollers 27 in a bush 25 retained by circlips in the yoke arms 11, the crossmember C being centred therein by semispherical members 41 seated in corresponding recesses in the ends of the trunnions of the cross and clamped together by end caps F, a roller thrust bearing 36a being sandwiched therebetween. Lubricant is supplied to the needle bearings 27 via a nipple 23 in the cross C, seals 31 being provided at the inner ends of the runnions, which seals additionally serve to inwardly locate the needle bearings 27. In Fig. 4 (not shown) the tie-rods 79 are screwed into a block 80 located in the centre of the cross C.
Patent GB-1262652-A (GB)
Title: Improvements in or relating to electric hand-operated switches for connection into flexible conductors
Inventor: ROBINSON CHARLES
IPC: H01H9/02
Filed: 1968-07-05
Abstract: 1,262,652. Mechanical switches. WARD & GOLDSTONE Ltd. 23 June, 1969 [5 July, 1968], No. 32103/68. Heading H1N. An electric switch having a body 9, a removable cover'6 and an opening at one extremity for flexible conductors has at or near the other extremity push-buttons 13, 32 such that with push-button 13 depressed, Fig. 4, push-button 32 projects, contacts 23, 24 close and pushbuttons 13, 32 latch together so that pushbutton 13 can only. be released by depressing push-button 32, Fig. 2, whereupon contacts 23, 24 open and push-buttons 13, 32 latch together again.so that contacts 23, 24 can only. be closed again by depressing push-button 13. As shown, push-button 13 has a shank 12 which has a lug 30. In the contacts open position, Fig. 2, lug 30 lies inside an opening 31 in push-button 32 and holds it depressed which holds contact 23 away from the end 25 of fixed contact 24. When push-button 13 is depressed lug 30 passes through opening 31 and frees push-button 32 which is pushed outwardly by spring contact 23, Fig. 4, and lug 30 latches behind the inner end of push-button 32. When push-button 32 is again depressed lug 30 is freed and push-button 13 is pushed outwardly by spring 16 and contact 23 is pushed by push-button 32 away from contact 24. There are two sets of mating contacts 23, 24, shown better in Fig. 1 (not shown) moulded in nylon blocks 20.
Patent GB-1272312-A (GB)
Title: Improvements in tanks for storing cold liquefied gas under superatmospheric pressure
IPC: F17C1/12
Filed: 1969-06-25
Abstract: 1,272,312. Liquefied gas storage tanks. TECHNIGAZ. 25 June, 1969 [11 July, 1968], No. 32120/69. Heading F4P. The gas space 6 of an inner flexible thinwalled impermeable non-self supporting pressurized cylindrical L.N.G. stor ge tank 2 is connected by a duct 7 to permeable heat insulation material 3 filling the space between said tank 2 and an outer rigid structure whereby the internal and external tank pressures are equalized. The tank has two sets of intersecting inwardly projecting expansion corrugations and the outer structure comprises a concrete casing 1 lined by steel plates 4.
Patent GB-845926-A (GB)
Title: Improvements in laminated article
IPC: B60C1/00
Filed: 1957-10-15
Abstract: A composite article comprises a layer of natural rubber vulcanized to a layer of a brominated copolymer of a major proportion of an isoolefin of 4-8 carbon atoms and a minor proportion of a diolefin of 4-7 carbon atoms, at least one of the layers containing silica.  The proportion of silica may be 10-90% preferably 30-60% by weight. Examples describe compositions containing (1) natural rubber, carbon black, silica (20-65% of the rubber content), and vulcanizing ingredients, (2) brominated butyl rubber 80 parts, natural rubber 20 parts, carbon black 40 parts, and vulcanizing ingredients.  U.S.A. Specifications 2,356,128 and 2,631,984 are referred to.