baber/WOPTO huggingface dataset:
Patent GB-628518-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/02
Filed: 1947-06-19
Abstract: 628,518. Retractive switches. TRICO PRODUCTS CORPORATION. June 19, 1947; No. 16250. Convention date, June 26, 1946. [Class 38(v)] A spring 10, located on the centre contact 6 of a twoposition switch, engages a cap 21 in a contact-disc 20 to hold it away from the outer contacts 7, 8 and press it against the switch lever 17 through the intermediary of an insulating disc 23. The spring 10 also holds trunnions on the lever 17 in bearings in the casing 1. Rocking of the lever 17 to either side bridges contacts 6, 7 or 6, 8, the spring 10 returning the lever 17, when released, to the central " off " position. The sides of the casing 1 are extended alongside the lever 17 and joined at the top by a bar 26 to form a finger support. In an alternative .construction (Fig. 7, not shown) the contact 6 has its spring- locating end level with the contacts 7, 8.
Patent GB-1268774-A (GB)
Title: Stabiliser device for towed trailers and articulated vehicles
Inventor: GREEN JOSEPH CHARLES
IPC: B60D1/32
Filed: 1968-04-04
Abstract: 1,268,774. Stabilizers between towing and towed vehicles. J. C. GREEN, R. D. GREEN and P. W. HAYES. 17 April, 1969 [4 April, 1968], No. 16277/68. Heading B7T. [Also in Division F2] A stabilizer for use between a towing and towed vehicle comprises a cylinder 10 with a piston 15 intermediate of a piston rod 14 which extends through a first bush 11 to a socket coupler 3-3, and through a second bush 12, there being a universal coupling 20 at the end of the cylinder opposite to bush 11 such that when coupler 33 is connected to a touring vehicle ball 34 and coupling 20 to towed vehicle frame 31, pivotal movement between the vehicles is damped by fluid being throttled at 18 when passing the piston between cylinder chambers 16, 17. One side of the bushes are provided with seals 13 and the other side with scrapers (not shown). The coupling 20 consists of a U-shaped plate 21 which closes the cylinder end and mounts a tube 23 around a bolt 22. A second tube 26 connected transversely to the first envelopes a further bolt connected to a plate by which this end of the stabilizer is bolted to the towed vehicle frame 31. Chamber 32 may be filled with a lubricant and a sleeve extend between coupler 33 and the cylinder.
Patent GB-291745-A (GB)
Title: Improvements in storage batteries of the cell type
IPC: H01M10/12
Filed: 1928-06-05
Abstract: 291,745. Large, J. M. June 7, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Electrodes for storage batteries consist of a number of superposed lead troughs supported by walls and partitions b and filled with active material c as shown in Fig. 2. The troughs may be formed by casting a number of shelves a, Fig. 1, with walls and partitions b and turning up the ends a<1>, a<2> of the shelves. To form a complete cell two such blocks of shelves may be immersed in sulphuric acid and separated by a plate of earthenware &c. fitting into grooves in the container.
Patent GB-517722-A (GB)
Title: Improvements in or relating to isolating valves
IPC: F16K3/10
Filed: 1938-06-01
Abstract: 517,722. Rotary disc valves. JACKSON & BROS., Ltd., HAMMOND, R., and FISH, J. R. June 1, 1938, No. 16329. [Class 135] An isolating valve, e.g., for insertion between a bleaching kier connected at 5 and a pump connected at 6, comprises a rotating valve member 8 in one position of which a passage 12 therein connects the passages 5 and 6 while in other positions the under-surface thereof seals the passage 6, stops such as fixed pins engaging the ends of grooves in the member 8 being provided to prevent the passage 12 from being turned into more than one position of registration with the passages 5 and 6. An aperture through the member 8 vents the passage 5 to atmosphere when the passage 6 is scaled. The passage 12 in the form shown splits into two around the spindle tube 13, a hand wheel 24 screwed on to the spindle 7 and locked by a wing nut 26 (complete removal of which is prevented by a collar 27) serves to clamp the valve in its various positions, and rubber sealing rings 14, having inwardly projecting lips 15 pressed on to the member 8 by the liquid pressure, surround the ends of the passages 5 and 6. A deflecting skirt 28 and a drain trough 29 discharge any leakage into a waste pipe and a marked plate 31 indicates the position of the valve member 8 which is rotated by a handle projecting laterally therefrom.
Patent GB-699069-A (GB)
Title: Improvements in or relating to hollow beams
Inventor: BRUNTON BERNARD
IPC: E04C3/14
Filed: 1952-06-30
Abstract: 699,069. Beams. SELECTION ENGINEE RING CO., Ltd. June 30, 1952, No. 16455/5 Class 20(iv) A hollow beam comprises a pair of self-supporting side frames each extending the length of the beam and consisting of an upper and lower longitudinal member connected at intervals by struts or braces, the side frames being secured together inspaced apart relation and the structure then being enclosed in sheet material which is secured to the frames so as to form a hollow, box-like beam construction. In the form shown, the side frames consist of lattice beams 2 and 3 constructed from wooden battens, the upper longitudinal members 12 and 12a being connected to the lower members 13 and 13a by vertical struts 14, 14a and inclined brace members 15, 15a, the joints between the members being reinforced by plywood plates 16, 16a. The beams 2 and 3 are secured together at top and bottom by plywood panels 4 and 5 and faced on their outer sides with plywood skins 6 and 7 which are nailed and glued in position.
Patent GB-631494-A (GB)
Title: Improvements in or relating to the preparation of 2-amino-4-hydroxy-6-substituted pteridines
Filed: 1947-06-23
Abstract: 2 - Amino - 4 - hydroxy - 6 - substituted pteridine is prepared by mixing a 2-amino-4-hydroxy-6-halomethyl-pteridine with p-amino-benzoic acid or a salt, ester or amide thereof in an inert and preferably anhydrous solvent, e.g. an alcohol or alkylene glycol. The reaction mixture may be heated to a temperature between 80 DEG and 150 DEG  C.  Suitable amides of p-aminobenzoic acid are p-aminobenzoylglutamic acid, p-aminobenzoylaspartic acid and p-amino benzoylglycine, and amides of aminoacids having one or more peptid linkages such as p-amino-benzoylglutamylglutamic acid. In examples, pteroylglutamic acid and its diethyl ester are prepared.  The ester groups may be removed by hydrolysis.  Methyl - gamma, gamma - dimethoxy acetoacetate is prepared from dimethoxy acetate, sodium and methyl acetate by a method similar to that given in the journal of the American Chemical Society, Volume 41, page 812.  2 - Amino - 4 - hydroxy - 6 - pyrimido-[4, 5-b]-pyrazine acetic acid is prepared by heating 2 : 4 : 5-triamino-6-hydroxypyrimidine and methyl-gamma, gamma-dimethoxy acetoacetate in glacial acetic acid.  2 - Amino - 4 - hydroxy - 5 - methyl pteridine is obtained by heating 2-amino-4-hydroxy-6-pyrimido - [4, 5-b] - pyrazine acetic acid.  2 - Amino - 4 - hydroxy - 6 - (mono - and di-bromomethyl)-pteridines are obtained by heating 2 - amino - 4 - hydroxy - 6 - methyl pteridine in a sealed tube with bromine. The mono-bromo derivative may be obtained merely by heating with bromine and hydrobromine acid.  2 - Amine - 4 - hydroxy - 6 - (chloromethyl)-pteridine is obtained by heating 2-amino-4-hydroxy-6-methyl pteridine with sulphuryl chloride in the presence of benzoyl peroxide.
Patent GB-1115747-A (GB)
Title: Aluminum alloy and sacrificial galvanic anodes thereof
Inventor: REDING JOHN THOMAS
IPC: C22C21/00
Filed: 1967-04-11
Abstract: An aluminium base alloy consists of .Hg.0.003 - 0.04% .Bi.0.015 - 2.0% the balance, apart from impurities, being aluminium and is characterized in that the Bi:Hg ratio is from 5 to 53.  The alloy may be prepared by adding a Bi.Hg pre-alloy and Bi to molten aluminium followed by casting.  The alloy may be used as a sacrificial anode, as a pigment in paints, for anodes in primary batteries or sacrificial coatings on metals such as steel sheet. Also they may comprise the active ingredients in flares, for use in chemical reductions and in the preparation of aluminium alkyls.
Patent GB-944575-A (GB)
Title: Improvements in pulse amplitude discriminators
IPC: H03K21/00
Filed: 1961-05-08
Abstract: 944,575. Transistor pulse amplitude discrimiriating circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 8, 1961 [May 11, 1960], No. 16631/61. Heading H3T. A pulse amplitude discriminator comprises a plurality of monostable trigger circuits having in common a first transistor to which the pulses are applied, connected in series with a parallel combination of a number of transistors of opposite conductivity type. Pulses of negative polarity are applied via capacitor 2 to the base of NPN input transistor 3, the emitter of which is connected via resistor 12 to the emitters of PNP transistors 4, 5, 6. The collectors of transistors 4, 5, 6 are fed through individual resistors and the bases are connected through capacitors 17, 18, 19 respectively and rectifiers 7, 8, 9 respectively to the collector of transistor 3. The bases of transistors 3, 4, 5, 6 are biased over resistors 20, 21, 22, 24 respectively from potentiometer 10 across the power supply. The rectifiers 7, 8, 9 are also biased from potentiometer 10 through resistors 14, 15, 16 respectively. The arrangement may include further parallel-connected transistors with corresponding diodes and coupling capacitors. In the rest condition transistors 3 and 4 are conducting and the other transistors and the diodes cut off. A negative-going pulse exceeding a predetermined amplitude applied to transistor 3 makes diode 7 conductive resulting in a triggering action between transistors 3, 4 whereby 4 is cut off and transistor 5 becomes conductive, an output pulse appearing on terminal 17a. When the incoming pulse exceeds a higher predetermined amplitude diode 8 becomes conductive and triggering action occurs between transistors 3 and 5 whereby 5 is cut off and transistor 6 becomes conductive, an output pulse appearing on terminal 18a. When the pulse exceeds a still higher predetermined amplitude diode 9 becomes conductive and triggering action occurs between transistors 3 and 6 whereby both are cut off, so that an output appears at neither of the output terminals 17a, 18a.
Patent GB-585919-A (GB)
Title: Improvements in containers for bottles, ampoules, sticks of chalk and other easily breakable articles
IPC: B65D5/38
Filed: 1943-10-12
Abstract: 585,919. Containers for fragile articles. ROBINSON, E. B. Oct. 12, 1943, Nos. 16672/43 and 3006/44. [Class 18] A cardboard or other container 1, Fig. 1, (16672/43), for frangible articles such as ampoules, bottles, sticks of chalk &c. which may be irregularly shaped is provided with a sleeve or sleeves 4 having beads 5, 6 for resiliently gripping the articles. A bead 3 locates an end closure disc 2 and a lid 8 seats around the upper part of the sleeve. Projections may be formed on the sleeve by stamping &c. The sleeves may be wedged between stops. In another construction a frame 3, Fig. 1, (3006/44), is located in a box base 1 having a removable closure 2. Sleeves 4 with beads 5, 6, are located within the frame.
Patent GB-983217-A (GB)
Title: Semiconductor devices
IPC: C23C22/02
Filed: 1962-05-01
Abstract: A wafer of germanium, silicon, or germanium-silicon alloy is halogenated and then treated with a reactive alkylating agent.  In a typical example a germanium wafer including a PN junction, after etching in a saturated solution of oxalic acid in hydrogen peroxide, is heated first in pure argon or nitrogen and then at 85 DEG  C. for 10 minutes in a flow of equal volumes of hydrogen chloride and chlorine or hydrogen bromide and bromine.  After repeating these steps and cooling in inert gas the wafer is immersed in ethyl magnesium bromide, lithium ethyl, propyl or butyl, or butyl magnesium bromide.  Finally it is rinsed in ammonium chloride or acetic acid. In treating silicon and germanium-silico alloy butyl magnesium bromide and isopropyl magnesium bromide respectively are used as alkylating agents.
Patent GB-1493566-A (GB)
Title: Ultraviolet ray sterilizer
IPC: A61L2/10
Filed: 1976-04-26
Abstract: 1493566 Irradiation USHIO ELECTRIC Inc 26 April 1976 [17 Sept 1975] 16759/76 Heading H5R To sterilize liquids only slightly transmissive of U.V. the liquid 12 is allowed to run from a tank 1 via a line of holes 2a, 2b &c. or a slit over one or more (Fig. 4, not shown) UV-transparent tubes 3 each containing a UV lamp 4, the liquid being caught in a sump tank 5 with drain cock 7. The dimensions may be adapted to the UV transmission of the liquid to adjust the film thickness and transit time over the tube.
Patent GB-808187-A (GB)
Title: Weedkilling compositions
IPC: C07D285/125
Filed: 1956-05-30
Abstract: A weed-killing composition comprises (a) a compound of the general formula <FORM:0808187/VI/1> wherein R is hydrogen, a salt forming metal such as sodium, potassium, calcium, or a group such as ammonium or any organic radical such as alkyl, e.g. methyl, ethyl, propyl, isopropyl, allyl, or aryl, e.g. a phenyl group which may be further substituted by preferably alkyl, halogen or nitrosubstituents, or acyl, e.g. the radical of an aliphatic or aromatic carboxylic acid of carbonic acid or of a carbamic acid; (b) a solid carrier or aqueous carrier containing an emulsifier.  Specified active ingredients are di-methyl-, and di-ethyl-mercapto-thio-diazole, di-(2,4-dinitro-phenyl) - mercapto - thio - diazole, di - (N-dimethyl - carbamic acid) - mercapto - thio - diazole and di-sodium-mercapto-thio-diazole.  Specification 760,181 is referred to.
Patent GB-856038-A (GB)
Title: Improvements relating to stud and socket fasteners
Inventor: NEILSON WILLIAM
IPC: F16B5/10
Filed: 1958-05-28
Abstract: 856,038. Stud and socket fastenings. K.A.C. Ltd. May 13, 1959 [May 28,1958; Sept. 29,1958], Nos. 17061/58 and 31073/58. Class 44. A quick release stud and socket fastener comprises a headed stud and a socket 11 including a collet 14 dimensioned when open to receive the head 2 of the stud and when closed to grip the stud head to prevent withdrawal thereof from the collet, and actuating means for opening and closing the collet including a member 16 having toggle-action which goes over centre in movement to the collet-closed position thereof. As shown the head 2 of the stud is integral with a rack bolt 1 which is movable axially by a pinion 6 mounted in the housing 4, a nut 10 restricting forward movement of the rack. The collet 14 is slidably mounted in the socket 11. Rotation of a cam disc 16 causes axial movement of the collet and co-operation between conical surfaces 13, 14 of the socket to effect opening or closing of the collet jaws. In the closed position the cam disc 16 moves over-centre giving a toggle-action which holds-the cam in its closed position when a pull is applied to the collet. In an alternative form, Figs. 4-10, (not shown), the collet is rigidly fixed in a body carrying a pair of cam discs and a sleeve which are adapted to operate the sleeve relative to the collet.
Patent GB-777299-A (GB)
Title: Improvements in or relating to organo-silicon monomers and to resinous compositions formed therefrom
Inventor: LEWIS DANIEL W
IPC: C08G77/00
Filed: 1955-06-14
Abstract: The invention comprises polymerizable organosilicon compounds of the formula: <FORM:0777299/IV(a)/1> wherein R is a hydrocarbon group free from aliphatic unsaturation, X is a hydrolysable group, and Y is an olefinic hydrocarbon group, and solid thermoset resins obtained by hydrolysis and polymerization thereof.  The group R may be aliphatic or aromatic, e.g. methyl, ethyl, propyl, isopropyl, benzyl or phenyl. The olefinic group Y may be vinyl, allyl or vinyl phenyl.  The hydrolysable group X may be alkoxy, aryloxy, halogeno or amino. The preparation of p-(dimethylvinylsilyl) phenyldiethoxymethylsilane is described: trichlorovinylsilane is stirred with a Grignard reagent prepared from magnesium, p-dibromobenzene and ether, and the liquid product is refluxed with methyl magnesium bromide in ether, yielding p-bromophenyldimethylvinylsilance.  A Grignard reagent prepared from this silane is heated with triethoxymethylsilane to give the above product.  The organosilicon monomers may be hydrolysed in water, or in acids such as sulphuric, hydrochloric and picric acids.  They may be cohydrolysed with other silanes of the formula SiRnX4-n or: <FORM:0777299/IV(a)/2> e.g. diethoxymethylphenylsilane, 1,4 - bis-(ethoxydimethylsilyl) benzene, diethoxymethylvinylsilane and 1,4 - bis - (diethoxymethylsilyl) benzene.  Solvents, such as benzene, toluene, xylene, diethyl ether, methanol, ethanol and propanol, are preferably present.  The polysiloxane hydrolysis products are oily fluids which may be polymerized by heating to about 100 DEG  to 180 DEG  C. in the presence of a vinyl polymerization catalyst. Suitable catalysts are benzoyl, lauroyl, methylethyl ketone and di-tbutyl peroxides, t-butyl hydroperoxide, ascaridole, t-butyl perbenzoate, di-t-butyl diperphthalate, 2,2-di-t-butyl peroxy butane, and oxonides.  Accelerators such as cobalt naphthenate and azomethines may also be employed.  Polymerization may also be effected by actinic light.  The polysiloxanes may also be dissolved in a liquid reactive unsaturated monomer and copolymerized by heating with a catalyst. Examples of such monomers are styrene, vinyl toluene, methyl styrenes, 2,4-dichlorostyrene, vinyl acetate, methyl and butyl methacrylate, ethyl and allyl acrylate, diallyl phthalate, succinate and maleate, methallyl alcohol, acrylonitrile, methyl vinyl ketone, diallyl ether, allyl crotonate, 1,3-chloroprene, triallyl cyanurate and divinyl benzene.  To prevent premature polymerization, less than 1 per cent of an inhibitor may be added to the polysiloxane; suitable compounds being hydroquinone, resorcinol, tannin and sym.a ,BETA-naphthyl p-phenylene diamine. The compositions are useful in preparing laminates, mouldings, e.g. for knife handles, boats, &c., and for coating, impregnating and encapsulating electrical equipment. They may be rendered thixotropic by incorporating about 25-50 per cent by weight of mica flakes, silica, asbestos, glass, &c.
Patent GB-217064-A (GB)
Title: Improvements in adjustable wrenches
IPC: B25B13/24
Filed: 1923-07-02
Abstract: 217,064. Hacheney, F. C. July 2, 1923. Sliding-jaw wrenches; handles.-In a wrench of the kind having a tapered shank 7 and a tapered locking-member 9 co-operating therewith the member 9 is formed with two faces a, b, Fig. 3 at right-angles to one another, and is housed and guided in the sliding jaw 2 in a recess 8 having two faces 10, 11 at right angles to each other and respectively parallel to the faces a, b of the member 9. The locking mamber is operated, to lock or unlock the jaw 2, by a screw 12 which has a ball and socket connection 19 with the locking member and is inclined to the axis of the shank 7. In a modified construction the member 9 and recess 8 are contained in a housing pivoted to the shank of the sliding jaw, the shank of the fixed jaw passing through this housing and the two shanks being held in contact by a spring.
Patent GB-497406-A (GB)
Title: Improvements in or relating to electron discharge devices for use in television for example
IPC: H01J29/02
Filed: 1937-06-19
Abstract: 497,406. Cathode-ray tubes. CROWTHER, B. M. June 19, 1937, No. 17118. [Class 39 (i)] A cathode 3, a target 9, and a further surface 12 receiving secondary electrons, which are emitted by the target in greater numbers than the incident electrons, are oblique to the axes of electrostatic lenses 8, 10, 11, which focus the electrons, and the curvature of the target is such that the distortion of the electronic image on the surface 12 is reduced. The photo-electric cathode is also curved. A further curved target may be used. Specification 457,493 is referred to.
Patent GB-963932-A (GB)
Title: The process and apparatus for electrodialyzing solutions
IPC: C25B13/08
Filed: 1962-05-04
Abstract: In a process for decomposing salts to form their organic or inorganic acid and base components by electrodialysis, the salt solution is fed under pressure into a central compartment of a cell separated from the anolyte by a liquid permeable non-selective diaphragm, and from the catholyte by a cationic perm-selective diaphragm. The process may be applied to regenerating sodium sulphate solution from fibre spinning to form sodium bisulphate and caustic <PICT:0963932/C6-C7/1> soda, or to salts of organic or inorganic acids, e.g. sodium acetate, or potassium halides; di-and tri-basic acid salts are also referred to. The permeable diaphragm may be microporous asbestos, rubber, ceramics, P.V.C. and similar polymers.  The cationic diaphragm may be copolymers of divinyl benzene, and olefinic carboxylic compounds, condensation products of resorcylic acid and formalin, or sulphonated humic materials.  The process prevents the flow of H ions into the catholyte and in the case of caustic soda production is salt-free. One or both diaphragms may be supported by expanded metal which may form the electrode The electrodes may be submerged in the liquid or unsubmerged, and the central compartment may be divided, the compartment adjacent the anode cell receiving the electrolyte, and that adjacent the cathode cell receiving water.  In an apparatus of this type, foraminous metal electrodes 2a, 11a are attached to porous membranes 6, 16, and the central compartment is divided by a cationic selective membrane 10. Electrolyte is fed in at 7 and water at 12. The water flows through membrane 16 and trickles down the unsubmerged cathode grid 11a, flushing down the cathodic product to the chamber 61 and minimizing losses of OH ions.  Gases produced are quickly released by the use of the unsubmerged electrodes.  Similarly H ions formed at the anode 2a are washed down into chamber 48 and are prevented from migrating towards the chamber 15.  The anode is preferably Pt, Ph or a coating of these on Ti or Ta; the cathode is of Ni or steel.  U.S.A. Specifications 2,681,320 and 3,017,338 are referred to.
Patent GB-161874-A (GB)
Title: Improvements in sewing machines
IPC: D05C7/06
Filed: 1920-06-24
Abstract: 161,874. Thompson, W. P., (Union Special Machine Co.). June 24, 1920. Sewing-machines; surface threads, attaching.- A surface thread 20 is interlaced between the stitches formed by two or more needles 4, 5, by means of an oscillating thread engaging hook 28, a guide eye 27 carried by the needle-bar and a fixed cam-like guiding surface 41. As the thread loop is extended towards the left, the surface 41 causes the thread to slip backwards and thereby the upper arm of the thread loop is caused to lie between the needles. The downward movement of the guide eye 27 in the formation of the next stitches brings the surface thread 20 forwardly along the surface 41 into position to be engaged by the thread-hook. In the form shown the surface 41 forms one wall of a slot 43 but the thread does not engage the other wall and it may be omitted.