baber/WOPTO huggingface dataset:
Patent GB-993865-A (GB)
Title: Improvements in or relating to brake valves
IPC: B60T13/14
Filed: 1962-05-04
Abstract: 993,865. Brake valves. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM. - GES.]. May 4, 1962 [June 29, 1961], No. 17194/62. Heading F2F. A brake valve for dual-circuit brakes, more particularly of motor vehicles, which when operated so controls a pressure medium source that the same supplies one brake circuit directly and acts on a piston of a master cylinder 2 of the other brake circuit comprises a hollow actuating member 7 which is operated by the brake pedal through a push-rod 5 and by which is controlled a pressure supply valve 25, the member 7 co-operating with the pushrod to form a valve for controlling the return of the pressure medium through the member 7 to an outlet 9 to a reservoir 13. On movement of the push-rod 5 to the left the connection to the outlet 9 is interrupted when the valve 22, 23 closes and the valve rod 19 straightens to lift the spring-loaded valve 16 off its seat. Pressure medium flows from an accumulator into valve passage 12 and thence through chamber 21 and connection 11 to the wheel brake cylinders of one circuit and through passage 13 to the back of master cylinder piston 14 to shift the same to operate the brakes of the second circuit. Failurein the power assistance provided by the accumulator results in the actuating member 7 engaging the piston 14 to actuate the brakes of the second circuit.
Patent GB-967874-A (GB)
Title: Production of organic sulfonic acids
IPC: C07C303/44
Filed: 1961-05-11
Abstract: p-Toluenesulphonic acid is separated from a mixture of o-, m- and p-isomers by forming a solution of the mixture in an inert solvent at not above 120 DEG C., the inert solvent having a b.p. within the range 40-140 DEG C., adding to the solution not more than 0.95 mole water per mole of p-isomer, adjusting the temperature to 30-80 DEG C. to precipitate toluene sulphonic acid monohydrate which is then separated while maintaining the temperature of the mother liquor. Preferably the separated monohydrate is dehydrated by distilling its suspension in an inert water-immiscible solvent until water no longer distils.
Patent GB-1369408-A (GB)
Title: Loading mechanism for a tyre press
IPC: B29C43/34
Filed: 1973-04-11
Abstract: 1369408 Moulding tyres FRIED KRUPP GmbH 11 April 1973 [12 April 1972] 17399/73 Heading B5A A press for pneumatic tyres includes a tyre loading mechanism comprising a carrier ring 2 on which are mounted four holders 3 radially adjustable to accommodate types of different sizes by screws 5 engaging within slots 4. A gripper finger 6 and an hydraulic or pneumatic actuator 9 are pivotally supported on each holder whereby the finger can be swung to a vertical position to engage beneath the upper head of a tyre. By appropriate holder adjustment a tyre carcass can be centrally positioned in the press.
Patent GB-1039840-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A3/64
Filed: 1965-04-26
Abstract: 1,039,840. Automatic firearms. RHEINMETALL G.m.b.H. April 26, 1965 [Oct. 29, 1964], No. 17443/65. Heading F3C. An automatic weapon is formed with a straightline action bolt with rigid or semi - rigid locking which bolt has at its forward portion guide lugs 6, 6<SP>1</SP>, 7, 71 guided with clearance along guide tracks 8, 9 formed in the weapon casing. The bolt is also mounted with clearance at its rearward portion 10, Fig. 1 (not shown) in a bore of the bolt holder. The bolt is locked in position by rollers, cylinders or supporting flaps and is unlocked and moved rearwardly by a gas piston.
Patent GB-1431868-A (GB)
Title: Catalytic oxydehydrogenation of alkyl aromatic compounds
IPC: C07C5/48
Filed: 1973-04-11
Abstract: 1431868 Dehydrogenation DOW CHEMICAL CO 11 April 1973 17443/73 Heading C2C [Also in Division C5] Alkylpyridines or alkylaromatic hydrocarbons containing halogen or cyano nuclear substituents are dehydrogenated at 400-650‹ C. in the presence of 0À5-4 moles O 2  per mole feed and a catalyst comprising carbon phosphate or a combination of cerium phosphate and zirconium phosphate containing at least 5 mole per cent CeSO 4 . Steam and/or an inert gas may be present. Examples describe the dehydrogenation of ethylpyridine to vinylpyridine and of o- and p-chloroethylbenzenes to chlorostyrenes.
Patent GB-832893-A (GB)
Title: Isolator switch
Inventor: DEBUIT LOUIS
IPC: H01H31/36
Filed: 1958-06-02
Abstract: 832,893. Air-break isolating switches. ETABLISSEMENTS MERLIN & GERIN S.A. June 2, 1958, No. 17496/58. Class 38 (5). To close the contacts of an isolating switch, one part 8 of a hinged switch arm is turned by an operating rod 7 about a shaft 3 and a rack 6 pivoted about a shaft 5 offset from the shaft 3 turns a pinion 16 to rotate the other part 11 of the arm relative to the first part. The pinion 16 and the part 11 are fixed to a shaft 10 pivoted in the part 8 and the gear ratio of the pinion and rack is such that as the part 8 is turned through 90 degrees, the part 11 is turned through 180 degrees relative to the part 8, the arm being straight and vertical when the contacts are closed.
Patent GB-677857-A (GB)
Title: Improvements in hydraulic direct-acting suspension shock absorbers
IPC: F16F9/06
Filed: 1950-07-13
Abstract: 677,857. Hydraulic shock - absorbers. BOURCIER DE CARBON, C.M.L.L. July 13, 1950 [July 13, 1949], No. 17583/50. Class 108(iii) A hydropneumatic shock absorber comprises a cylinder closed at each end and divided by a partition into a working chamber filled with liquid and containing a piston and a compensating chamber filled with liquid and air, the partition having valved passages therein for controlling the flow of liquid in both directions and the compensating chamber containing means for preventing any substantial entrainment of air in the liquid as a result of turbulence of the liquid created by passage of the liquid through the partition. As shown, oil entering a compensating chamber 1, through orifices 5, is deflected by a partition 3 which may comprise a single rigid or flexible flange providing the annular space 4 for the passage of the oil into the upper part of the chamber. The passage 4 and partition 3 may be replaced by a fluid-tight partition of material such as rubber or by the disposition within the chamber 1 of a rubber or the like air-filled bag. In another arrangement, the chamber 1 may be provided, preferably above the orifices 5, with a mattress of latex foamed rubber or the like spongy material having open or closed voids or masses of felt or wool or the like.
Patent GB-301760-A (GB)
Title: Improvements in sighting devices for firearms
IPC: F41G1/30
Filed: 1927-07-01
Abstract: 301,760. Sieber, J. J. July 1, 1927. Sights.-Relates to sights of the kind comprising a transparent sighting mirror 22 on to which a sighting mark is projected, the mirror being supported above a casing in which is fixed an apertured diaphragm for forming the mark and a mirror for reflecting the mark on to the sighting mirror. According to the invention, the ends of the casing are closed by removable plugs 15, 11, one carrying the mirror 17 and the other the apertured diaphragm 12. The beam of light from the aperture, after reflection, passes through a lens 25 to the transparent mirror 22 which may be adjustable. A sleeve 26, 27, Fig. 4, which fits on the front of the casing is adapted to receive an electric lamp 29.
Patent GB-1387146-A (GB)
Title: Electronic ignition control circuit
IPC: F02P3/045
Filed: 1972-05-08
Abstract: 1387146 Ignition systems CHRYSLER CORP 8 May 1972 [1 June 1971] 17592/74 Divided out of 1387145 Heading FIB [Also in Division H3] The subject-matter of the present Specification is substantially identical to that of Specification 1387145 but the claims relate to the excess voltage protection of the output stage transistor by connection of a Zener diode across its base and collector terminals.
Patent GB-983850-A (GB)
Title: A method for preparing polyurethane foams
IPC: C08J9/00
Filed: 1961-05-15
Abstract: Polyurethane foams are prepared by mixing and allowing to expand (1) a polyether or polyester containing on the average at least two OH groups per molecule (2) an organic diisocyanate, (3) a foaming agent, and (4) at least 0.2% by weight calculated on the total weight of (1) and (2) of an organo-silicon polymer comprising a polysiloxane fragment and at least one polyalkyleneoxy fragment (R1O)y connected thereto by a Si-C linkage, wherein the total (R1O)y groups compose at least 25% by weight of the compound and the combined weights of the polysiloxane and-(R1O)y-fragments make up not less than 50% of the total weight of the compound. Preferred silicon compounds have the formula <FORM:0983850/C3/1> wherein R11 is hydrogen, a hydrocarbon or substituted hydrocarbon radical, radicals containing H, C and O in the form of ether linkages, acyl, trishydrocarbylsilyl, or hydrocarbyl carbamyl, R1 is an alkylene radical, y is an integer of at least 4, R is a divalent hydrocarbon or substituted hydrocarbon radical, a hydroxy alkylene, hydroxyether, or acyl radical, n is 0 or an integer, Y is hydrogen, hydrocarbon or substituted hydrocarbon or siloxy radicals -OSiY3, Z is hydrogen, hydrocarbon or substituted hydrocarbon, hydrocarbonoxy or substituted hydrocarbonoxy, -R(OR1)yOR11, or -ASiB3, where A is a divalent hydrocarbon or substituted hydrocarbon radical and B is hydrogen, monovalent hydrocarbon or substituted hydrocarbon, hydrocarbonoxy or substituted hydrocarbonoxy, trishydrocarbylsiloxy or tris-substituted hydrocarbylsiloxy radical.  In a modification, (1) and (2) are first formed into a pre-polymer.  14 examples describe the preparation of a variety of suitable organosilicon compounds which are used in the preparation of polyurethane foams from (i) a toluene diisocyanate-castor oil prepolymer, water and ethylene diamine, (ii) a polypropylene glycoltoluene diisocyanate prepolymer, a copolymer of polypropylene glycon and adipic acid, N-methyl morpholine and CCl3F, (iii) a polypropylene glycol-toluene diisocyanate pre-polymer, a polypropylene glycol, triethylene diamine and CCl3F, (iv) polypropylene glycol, toluene diisocyanate, triethylenediamine and CCl3F, and (v) polypropylene glycol, toluene diisocyanate, distilled water and triethylene diamine.  Other polyurethane-forming compounds specifically mentioned are hydroxylated monocarboxylic acids, glycerine and pentaerythritol.
Patent GB-1339418-A (GB)
Title: Method for making embankments for roads railways or foundations for houses
IPC: E02D3/10
Filed: 1971-06-29
Abstract: 1339418 Soil stabilisation PERSTORP AB and OREBRO PAPPERSBRUKS AB 29 June 1971 [10 July 1970 26 Feb 1971] 17694/73 Divided out of 1338451 Heading E1F A method for making embankments using material having low water permeability, e.g. clay, involves building up an embankment of mainly substantially horizontal alternate layers of the material and fine pored drainage material to allow of horizontal drainage of the embankment. Preferably paper is the drainage material. The upper may be unsized, have a surface weight of approximately 100 g/m<SP>2</SP>, and such paper is arranged in the embankment that the direction of its fibres is transverse of the embankment.
Patent GB-773015-A (GB)
Title: Improvements in or relating to electrical apparatus-mounting arrangements
Inventor: HENDERSON HERBERT SAMUEL
IPC: H01R12/00
Filed: 1955-06-20
Abstract: 773,015. Terminal boards. STANDARD TELEPHONES & CABLES, Ltd. June 20, 1955, No. 17738/55. Class 38 (1). A board 1 has conductors 9 printed on one surface and components mounted on the other, and leads from the components are threaded through holes 8 in the panel and dip-soldered to conductors 9. A supporting member 11 for a valve also projects through the panel and is soldered to an anchor plate 12, which is printed at the same time and in the same way as conductors 9, but is electrically independent thereof.
Patent GB-184952-A (GB)
Title: Self balancing centrifugal basket or receiver
IPC: B04B9/12
Filed: 1921-06-29
Abstract: 184,952. McChesney, W. June 29,1921. Driving, suspending, and balancing.-The basket of a centrifugal machine is supported so as to have a certain freedom of movement about the end of the shaft, which is itself capable of limited swinging movement. In the construction shown, the basket BC is supported and rotates in a housing BBH, which is held between resilient buffers R, BR, carried by a non-revolving sleeve FC through which the driving-shaft DS passes. The basket is driven by a notched member D which is held on the upper end of the shaft DS by a nut. The buffers R, BR allow a tilting movement to the basket with respect to the shaft. The shaft has certain radial freedom since the sleeve FC has a conical end which seats in a conical support having resilient cushions SB. The basket may be such as described in Specification 142,949. According to the Provisional Specification the sleeve may have a spherical portion within the housing BBH.
Patent GB-530833-A (GB)
Title: Improvements in setting synthetic films and fibres
IPC: D06M13/10
Filed: 1939-06-19
Abstract: 530,833. Artificial silk &c. ; treating textiles with liquids ; resinous condensation products &c. DU PONT DE NEMOURS & CO., E. I. June 19, 1939, No. 17823. Convention date, June 28, 1938. [Classes 2 (ii), 2 (iii) and 15 (ii)] Synthetic linear polyamide filaments, fibres, bristles, films, fabrics, and the like are subjected to treatment with a setting agent e.g. a hot, mild swelling agent such as hot water or steam, in presence of a water-soluble sulphite or bisulphite. Instead of water or steam, hydroxylated non-solvents such as methyl or ethyl alcohol may be used as the setting agent. Polyamides obtainedfrom amino acids or from diamines and dibasic acids may be used for making the filaments or other products. The treatment imparts a high crimp retentivity to crimped polyamide filaments, sets straight filaments in straight position, and imparts to bristles a high power of recovery from deformation and increased wear resistance. Sodium, ammonium, potassium, and magnesium sulphites and bisulphites may be used. The setting medium may contain C-hexadecyl betaine, gelatine, sodium oleate or silicate, dodecyl sodium sulphate, Turkey red oil, alkyl naphthalene sodium sulphonates, alkyl sodium sulphates, fatty acid esters of ethanol sulphuric acid, and sulphonated oils. The crimp in filaments may be set by carrying out the treatment with steam at 100-150 C. Bristles may be set using hot water at 85-100 C. The sulphite may be included in the setting medium or the materials may be impregnated with the sulphite before treating them with the setting medium. The process is applicable to the setting of knitted stockings containing the polyamide filaments. In an example polyhexamethylene adipamide yarn is soaked in water, passed through mineral oil heated to 150‹C., washed with toluene and then with acetone. It is soaked in water, cold-drawn, soaked in aqueous sodium sulphite solution and allowed to crimp by drying in relaxed condition. It is then set by exposure to saturated steam at 100‹C. In another example, a stocking knitted from cold-drawn polyhexamethylene adipamide yarn is immersed in an aqueous solution of sodium sulphite and isopropyl naphthalene sodium sulphonate. It is placed on a rigid form of the shape of a leg and placed in a chamber containing saturated steam. The treated stocking is free from wrinkles and resistant to wrinkling when treated with hot dye liquids. Specifications 461,236, and 461,237 are referred to.
Patent GB-651765-A (GB)
Title: Improvements relating to pistons for internal combustion engines
Inventor: PENDRELL ARTHUR GEORGE
IPC: F02F3/10
Filed: 1948-07-02
Abstract: 651,765. Pistons. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd. July 2, 1948, No. 17837. [Class 122(i)] In a light metal piston the top ring groove has deposited thereon a plating of hard metal such as chromium. The top 1 and surface may also be similarly plated and also the other ring grooves. The chromium layer may be up to 0.003 inch thick and be applied on a layer of nickel up to 0.008 inch thick.
Patent GB-298178-A (GB)
Title: Improvements in or relating to the treatment of flax and similar fibrous materials
IPC: D01C1/02
Filed: 1927-07-05
Abstract: 298,178. Vickers, Ltd., and Lucas, O. D. July 5, 1927. Fibres, treating. - In the production of fibres resembling silk from flax and similar materials, the scutched fibre, which may be previously retted, is treated with a cellulose solvent of such strength as to exert a selective dissolving and hydrolyzing action without actually dissolving or gelatinizing the fibre. A suitable solvent is cuprammonium containing 10 grams of copper in the litre dissolved in 880 ammonia solution diluted with an equal volume of water, the fibre being immersed in this solution for 5-10 minutes. Another suitable solvent consists of zinc chloride 50-60 parts in 50-40 parts of water. The treatment is preceded in the case of retted flax by boiling for 1 hour in a 5 per cent solution of caustic soda and followed after washing by boiling with 1 per cent caustic soda to which is added after the first half hour a plasticizer which may be a sulphonated fatty acid such as sulphonated castor oil or an alkyl sulphonamide of a similar fatty acid containing -¢ its weight of linseed oil or other partly-saponifiable oil. Where unretted flax is used, a boiling in 1 per cent caustic soda solution, washing, acid bath treatment and washing precedes the boiling with 5 per cent caustic soda. Treatment with carbon bisulphide may be interposed between the 5 per cent and 1 per cent caustic soda treatments.
Patent GB-1012943-A (GB)
Title: Improvements in or relating to antibiotics
Inventor: COX JAMES STUART GORDON
IPC: C07D501/36
Filed: 1961-05-16
Abstract: Derivatives of cephalosporin C are produced by reacting in a polar medium a compound of the general formula <FORM:1012943/C2/1> (in which R1 is an acyl group and R2 and R3\h are each hydrogen atoms or R2 is a hydrogen atom and R3 is an acyl group or a triaryl substituted alkyl group, or R2 and R3 together form a divalent acyl group) or a salt thereof, with a strong nucleophile selected from (a) thiourea and substituted thioureas, (b) aromatic and aliphatic thioamides, (c) thiophenol and substituted thiophenols, (d) substituted and unsubstituted primary and secondary aromatic amines, (e) thiols and substituted thiols, (f) metal azides, metal hydrogen phosphates and metal thiosulphates, and (g) pyrroles and substituted pyrroles.  The Specification contains lists of suitable reactants of the above types and describes the production of many derivatives. Pharmaceutical compositions comprise the above derivatives formulated for administration in any convenient way such as injectable preparations in solution or suspension in a suitable medium; mixed with solid excipients they may be compressed into tablets or filled into capsules, and they may also be mixed with suitable bases for presentation as suppositories.
Patent GB-1007007-A (GB)
Title: Improvements in and relating to immersion heater steam boilers
Inventor: WILLIAMS GERALD AUSTEN
IPC: F22B1/28
Filed: 1963-05-07
Abstract: 1,007,007. Steam boilers. BASTIAN & ALLEN Ltd. May 5, 1964 [May 7, 1963], No. 18005/63. Drawings to Specification. Heading F4A. [Also in Divisions G3, H2 and H5] A steam boiler using immersion heaters comprises a cylinder inclined between 20 degrees to 60 degrees to the vertical to provide a " steam-dome " above the water. The water level may be controlled by a floatswitch connected in the feed-pump motor circuit, and shielded by a baffle in the boiler from turbulence due to the heater elements, Fig. 4 (not shown).
Patent GB-210702-A (GB)
Title: Improvements in or relating to grinding or mixing apparatus
IPC: A23G3/02
Filed: 1923-07-12
Abstract: 210,702. Fraser, W. G., and Egleston, T. B. M. July 12, 1923. Stationary batch mixers with rotary stirrers.-Apparatus for mixing &c. paint &c. comprises a removable receptacle provided with mixing elements and the receptacle is adapted to be brought into operative position by a truck having means whereby the receptacle is lowered into engagement with registering means for accurately positioning the mixing elements for operation from above by power through a clutch. A pan 4, Fig. 1, is provided with a central vertical shaft 23 carrying mixing-elements 22 and adapted to be engaged by a movable clutchmember on a power-operated shaft in alignment with the shaft 23. Lugs or studs 6 on the under surface of the pan 4 engage in recesses at the upper ends of brackets 5 on the framework 1, and a socket 26 at the upper end of the shaft 23 has slots 27 to receive pins 28 on a boss 16 at the lower end of a vertically-slidable shaft 14. A vertical shaft 12 in bearings 13 at the upper ends of the frame! members 3 and driven through bevel gearing 10, 11 from a shaft 9 is in permanent driving connection with the shaft 14. Studs 19 carried by the forked end of a lever 18 pivoted on a bracket 17 engage in the grooved portion of a collar 15 on the shaft. 14. A pawl 20 on the lever 18 engages the teeth of a curved rack 21 on the bracket 17 and holds the lever in the desired position. The shaft 9 is driven by belt gearing from a shaft driven by an electric motor 2. Figs. 4 and 5 show a truck to enable pans to be readily seated on the brackets 5 or removed therefrom. The truck comprises a frame 29 mounted on wheels 30 and having an upper body-portion 31 slidable vertically on the frame. The body 31 is formed at the base of each side with double inclined bearing-surfaces 32, 33 connected by an horizontal portion 34. Flanged rollers 35 carried at the outer ends of crossheads 36 having bosses 37 at their mid-portions engage the surfaces 32, 33, and a central longitudinal shaft 38 on the truck has oppositelyscrewed portions to engage the bosses 37 and is provided at one end with a, lever 39. Downwardly-extending arms 40 at the ends of the body 31 slide in sockets 41 on the frarne 29. To remove a pan from the position shown in Fig. 1 and replace it by a pan containing ingredients of another colour, the truck is wheeled into position beneath the pan 4 and the shaft 38 is turned to move the crossheads 36 apart and force the truck body 31 upward, thereby lifting the pan off the brackets 5. The truck and pan are then withdrawn, and another pan brought into position on the truck and lowered on to the brackets 5.