baber/WOPTO huggingface dataset:
Patent GB-1379981-A (GB)
Title: Lenses
IPC: G02B13/24
Filed: 1972-02-09
Abstract: 1379981 Optical objectives OLYMPUS OPTICAL CO Ltd 9 Feb 1972 5934/72 Heading G2J An objective has three parts I, II and III arranged in order from object to image side, the first part having a first component 1 consisting of a cemented triplet, a second meisocus lens component 2, the second part having a third and a fourth component, e.g. 3 and 4, one of which components is a cemented doublet, and the third part having a fifth, sixth and seventh component, the fifth and sixth (5 and 6) components each consisting of cemented doublets, and the seventh 7 being a meiscus lens, the objective satisfying the following conditions:- 0.8 f<|r 3  |<1.2f; 0.6f<r 15 <0.8f; 1.0f<|r 13 |<1.5f;25<|# 9 -# 8 |; where r 3  is the radius of curvaturve of the cemented surfaces of the first lens component at the image side; r 1  5  is the radius of curvature of the air interface of the sixth lens component at the object side; # 8  and # 9 ) are the AbbÚ numbers of the two lens elements of the fifth component, # 8  at the object side, # 9  at the image side; r 13  is the radius of curvature of the cemented surfaces of the fifth lens group; and f is the focal length of the objective. Optical data are given for three examples, in two of which the seventh component is a cemented doublet.
Patent GB-693652-A (GB)
Title: Improvements relating to pneumatic sanding equipment
IPC: B61C15/10
Filed: 1951-03-13
Abstract: 693,652. Pneumatic sanding equipment for vehicles. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., KERSHAW, J. G., and STONE, C. J. March 13, 1952 [March 13, 1951], No. 6004/51. Class 103 (iii). Pneumatic sanding equipment for vehicles having pneumatic control gear which includes three compressed air pipes, 1 a main reservoir pipe, 2 the " forward " pipe charged when the vehicle moves forward, 3 the " reverse " pipe charged when the vehicle is in reverse, and having one or more forward sand ejectors 5 and 6, and one or more reverse sand ejectors 10 and 11, comprises a sanding pipe 4 common to all sand ejectors, and supplied with compressed air from pipe 1 through control valves 25 and 26 and check valves 27 and 28. In forward travel, pipe 2 is charged, and compressed air is admitted through pipe 22 and port 23 to operating cylinder 21 of forward auxiliary valve 8, moving piston 15 against spring 16, so as to feed sand ejectors 5 and 6 with compressed air via pipe 7, port 24, port 19, pipe 9, and pipe 4 and to cut them off from atmospheric port 20. In reverse valve 13, pipe 3 being uncharged, the spring is unopposed, and ejectors 10 and 11 are connected to the atmosphere. Similarly, when in reverse, valve 8 connects ejectors 5 and 6 to atmosphere, and valve 13 connects 10 and 11 to pipe 4. Thus when valve 25 or 26 is opened, pipe 4 is charged and the appropriate sand ejectors are operated. Coupling may be provided for the 4 pipes, to control the equipment of another vehicle at the same time.
Patent GB-291520-A (GB)
Title: Improvements in, and relating to, valves
IPC: G05D16/10
Filed: 1927-01-03
Abstract: 291,520. Mason, H. L. Jan. 3, 1927. Safety Valves ; pressure - reducing valves; seats.-In a safety or reducing valve for steam &c. of the kind in which a main valve is controlled by a doubleheaded pilot valve the seat 10<1> of the main valve 10 is introduced and held in a direction opposed to that of the closure of the valve. The pilot valve has two heads 37 and is loaded by a spring 47. Normally the lower valve 37 is open and steam is admitted by a pipe 48 to a cylinder 15, acting upon a piston 16 to keep the main valve 10 closed, but excessive pressure closes the lower valve 37 and opens the upper one, so that the cylinder 15 is exhausted and the main valve 10 opens. In a modification, the cylinder 15 is separated from the main casing by a diaphragm, both sides of the piston 16 being controlled by the pilot valve. The main valve may be provided with packing as described in Specification 270,771.
Patent GB-357066-A (GB)
Title: Improvements in or relating to pistons for compressors, pumps, engines and the like
IPC: F16J3/00
Filed: 1931-02-26
Abstract: 357,066. Piston packing. TISSERANT, A. A. H., Villa ThÚlia, Avenue des Coteaux, St. Cloud, Seine-et-Oise, France. Feb. 26, 1931, No. 6049. [Class 122 (i).] A pleated sleeve or bellows c extends between the cylinder end a<1> and the piston head b<1> of a compressor, pump, or engine. One end of the sleeve is clamped between the cylinder and its head and the other between the piston head and a cap d bolted to it. The interior of the sleeve is filled with oil &c. introduced into the chamber n, to damp vibration. The apparatus shown is a compressor actuated by a cam f<1> through a plunger e pressing on the nut d<2> and returned by a spring h. The interior of the piston around the sleeve c is open to the air through a branch channel i2 from the admission passage.
Patent GB-253051-A (GB)
Title: Improvements in or relating to shirts
IPC: A41B1/00
Filed: 1926-03-05
Abstract: 253,051. Wainwright, F. W. March 5, 1926. Shirts.-A loop or band A is provided as shown on the front of the shirt for retaining the necktie in position and is sewn on to the shirt with the same lines of stitching as the front strap B at a position above the cross stitch C.
Patent GB-788230-A (GB)
Title: Improvements in or relating to resinous reaction products
IPC: C08L83/10
Filed: 1955-03-02
Abstract: Resins suitable for wire enamels and other insulating purposes are obtained by reacting certain polyesteramides containing free carboxyl groups with certain polysiloxanes containing free alcoholic hydroxyl groups.  The polysiloxane is obtained by partial hydrolysis of a mixture of hydrolysable silanes such that the hydrolysate will contain as organic groups phenyl and methyl radicals only, in a ratio between 3 to 1 and 1 to 2, that the R/Si ratio will be between 1.3 and 1.9 and that between 10 and 80 per cent of the hydrolysable groups will remain, followed by reaction of the partial hydrolysate with a polyhydric alcohol to remove the remaining hydrolysable groups and to introduce -ROH groups for subsequent reaction with the polyesteramide.  This polyesteramide is made by heating a reaction mixture of 25-45 mol. per cent of an ethylenically unsaturated dicarboxylic acid or anhydride, from 15-35 mol. per cent of a saturated dicarboxylic acid or anhydride, from 10-40 mol. per cent of one or more polyhydric alcohols with an average of not more than 3-5 hydroxyl groups per molecule, from 4 to 35 mol. per cent of ethanolamine or isopropanolamine and from 4-15 mol. per cent of ethylene diamine, propylene diamine or urea, the acidic components being in excess. Up to 15 mol. per cent of the unsaturated acid may be replaced by phthalic or isophthalic acid.  The reaction of the polyesteramide and polysiloxane is effected at between 100-200 DEG C. until a 20 per cent solution in cresol has a specified viscosity. Seven examples are given, together with the scrape hardness and accelerated age life at 275 DEG  C. of the products.  The preparation of polysiloxanes from various combinations of phenylmethyldichlorosilane, phenyltrichlorosilane, dimethylchlorosilane methyltriethoxy silane and equivalent compounds, followed by reaction with glycerol or a mixture of ethylene glycol and pentaerythritol is described. Polyesteramides are prepared from various proportions of (1) and (2) maleic anhydride, adipic acid, glycerol, monoethanolamine and ethylene diamine, (5) maleic anhydride, adipic acid, ethylene glycol, pentaerythritol, monoethanolamine and ethylene diamine, (6) phthalic anhydride, maleic anhydride, adipic acid, glycerol, monoethanolamine and ethylenediamine.  Specification 665,309 is referred to.
Patent GB-924316-A (GB)
Title: Improvements in and relating to the manufacture of suppositories
IPC: A61K9/48
Filed: 1962-02-16
Abstract: Gelatine suppositories are given a coating of a substance which has lubricating properties when administered.  Preferably the coating consists of a natural or synthetic grease or wax together with an emulsifying agent so that when it is moistened by water or mucus an emulsion is formed.  Suitable emulsifiable substances include paraffin wax, stearic acid and silicone greases while among suggested emulsifiers are dioctyl sodium sulphosuccinate, polyethylene glycols and glycerol monostearate.
Patent GB-1192833-A (GB)
Title: Method and device for Cohering Together Thermoplastic Coated Stator Windings of a Stator Coil of a Stator for an Electric Motor
IPC: H02K15/12
Filed: 1968-02-07
Abstract: 1,192,833. Shaping stator windings. MASCHINENFABRIK SPANDAU GEH & CO. K.G. 7 Feb., 1968 [8 Feb., 1967], No. 6176/68. Heading B3A. [Also in Division B5] In a method of cohering together thermoplastic coated stator windings of an electric motor, the coil is compressed by axial and radial pressure and it is heated by passing an electric current through the windings. The stator 18 is placed over a radial thrust device 2 and on a moulding section 1, which is carried by a lower limb portion 6 of a clamp 5. A press head section 3 is positioned on top of the stator and a thrust pad 17 is located on top of the head section 3. A manually operated pressure mechanism 4 is swung into the position shown and downward pressure of the mechanism is transmitted to a spreader mandrel 12 of the radial thrust device. A conical part 13 of the mandrel forces thrust blades 11 through slots 10 to compress the winding radially, the sections 1, 3 providing the axial compression. The mandrel 12 bears on a switch 22, which is operated at a predetermined load to allow current to pass through the coil thereby moulding the thermoplastic coating.
Patent GB-491500-A (GB)
Title: Improvements in or relating to controllers for inductive devices
IPC: B66C13/18
Filed: 1937-03-02
Abstract: 491,500. Control systems for electromagnets. IGRANIG ELECTRIC CO., Ltd. March 2, 1937, No. 6196. Convention date, March 4, 1936. [Class 38 (iv)] Switching control.-In a control system for an inductive winding 1 requiring current reversal for rapid decay of its flux, a relay 3a the operation of which is necessary to establish reverse current connections is initially energized and maintained energized independently of the potential across the winding 1 and is connected across the winding 1 during reverse current flow so as to disestablish reverse current connections when the voltage across the winding 1 has fallen to a predetermined value. A lifting magnet 1 is energized from mains L<1>, L<2> through contacts 5, 6 of an electromagnetic switch 2a when a push button switch 4 is closed to energize the coil 2a. At the same time a coil 3a is energized in series with the coil 2a and closes its contacts 3 to prepare a reverse current circuit for the electromagnet 1 and also a maintaining circuit for itself over a resistance R<3>, contact 3 and resistance R<2>. Opening of the switch 4 causes de-energization of the switch 2a and closure of contacts 1, 8 whilst contacts 5, 6 are opened whereby the magnet is reversely connected to the mains over resistance R<1>, contacts 8, 7, and 3 and resistance R<2>. Relay coil 3a is thereby connected across the magnet winding and opens the reverse circuit at 3 only when the voltage across the winding 1 drops to a predetermined low value.
Patent GB-1102372-A (GB)
Title: A process for the production of a pipe in a vertical position from a curable substance, for example a concrete composition, and apparatus for performing the process
Inventor: BEEK KAREL HENDRIK VAN DE
IPC: B28B21/16
Filed: 1965-02-12
Abstract: 1,102,372. Vertical pipe casting. BETON MAATSCHAPPIJ " DE PEEL " N.V. 12 Feb., 1965, No. 6210/65. Heading B5A. A pipe, of e.g. concrete, is cast in a vertical annular mould 7 on a shaped ring 10, carried by a ram 8, the ring being initially flush with the upper end of the mould and being gradually lowered as the casting proceeds. In this way the concrete does not drop into the mould but can be horizontally deposited, from e.g. a hopper and a plate, on to the upper surface of the concrete already cast in the mould cavity, and thus demixing is prevented. As the ram and ring move downwards vibrators 14 are sequentially started to consolidate the material. The finished pipe is ejected from the mould by re-raising the ring and ram, the core 6 moving upwardly with the pipe during its initial movement, after which the core is halted and the pipe completely ejected.
Patent GB-863056-A (GB)
Title: Switch for a power supply unit of a magnetron transmitter
IPC: H02M5/00
Filed: 1959-02-24
Abstract: 863,056. Valve supply circuits. MIWAG MIKROWELLEN A.G. Feb. 24, 1959 [Feb. 27, 1958], No. 6359/59. Class 40(6) [Also in Group XXXV] In a power supply unit particularly for magnetron transmitters, the high tension transformer is divided into several transformers with their secondary windings 1-3 series connected, with only one primary winding 9 energized during quiescent periods. The remaining transformer primary windings are energized through a magnetic switch 10 when the magnetron is required to oscillate. Several taps 8 may be provided on the winding 9.
Patent GB-942877-A (GB)
Title: Improvements in or relating to a thiaxanthene derivative
IPC: C07D409/04
Filed: 1961-03-27
Abstract: The invention comprises the compound of formula: <FORM:0942877/C2/1> and its acid addition salts; and its preparation by reacting thiaxanthone-9 with a grignard reagent of formula: <FORM:0942877/C2/2> wherein Hal represents chlorine, bromine or iodine, and hydrolysing the resulting reaction product.  Grignard starting material is prepared in an example by reacting N-methyl-4-chloropiperidine with magnesium filings in tetrahydrofuran.  Specification 829,764 also is referred to.
Patent GB-527077-A (GB)
Title: Improvements in or relating to apparatus for gasifying toxic material for the sterilization of stored products
IPC: A23B7/144
Filed: 1939-02-27
Abstract: 527,077. Sterilizing-apparatus. GASO ESTERILISADORA LIMITADA. Feb. 27, 1939, No. 6453. Convention date, Feb. 26, 1938. [Class 81 (i)] An apparatus for gasifying toxic substances, e.g. carbon tetrachloride, comprises a gasifier B for supplying the vaporized substance at about 90‹ C. a feeder unit A for supplying the substance under pneumatic pressure to the gasifier and a boiler D for supplying steam to the gasifier. The feeder unit is provided with a gauge, an inlet tube for liquid and a connection for supply of air under pressure. The gasifier, which may be mounted on an elevated stand has an outlet c, a valve controlled inlet tube 20 from the feeder a pressure gauge and a thermometer 23 and is heated by coils 25, 26 connected to the boiler. A pneumatic pump E is provided for forcing liquid fuel to a portable burner for heating the boiler D.
Patent GB-248781-A (GB)
Title: An improved process for the production of moulded pieces from dry mixtures of cellulose derivatives and albuminous substances
IPC: C08L1/08
Filed: 1926-03-08
Abstract: 248,781. Schmidt, F. March 6, 1925, [Convention date.]. Plastic compositions containing cellulose derivatives.-A homogeneous mixture of cellulose derivatives and albuminous substances is made by mixing the substances with the aid of volatile solvents, or mixtures of these with water, or of non-volatile swelling agents and water, the product is dried and moulded under pressure and heat. Hardening agents for the albuminous ingredient may be incorporated prior to the moulding. Several examples are given of which the following is typical :-60 parts of nitrocellulose are kneaded with a mixture of ethylene chlorhydrin and water, and 40 parts of casein with a similar mixture. The hneaded masses are amalgamated on rollers, filling materials being added if desired. After the addition of hardening agents, e.g. formaldehyde, the mass is either rolled into thin sheets, dried, and ground, or the dried mass is rolled to a suitable thickness, and cut into small articles, and the latter are submitted to high pressure and heat in moulds.
Patent GB-659913-A (GB)
Title: Apparatus for washing tumblers and like drinking vessels
IPC: A47L15/00
Filed: 1949-03-09
Abstract: 659,913. Washing drinking glasses. STAINES KITCHEN EQUIPMENT CO., Ltd., and BENNETTS, A. E. March 9, 1949, No. 6455. [Class 138(i)] An apparatus for washing drinking glasses and the like comprises two adjoining compartments one capable of holding water and containing three vertical power driven brushes which when in use are totally immersed in the water, the middle brush being formed to clean the interior of an inverted glass with the two other brushes contacting the outside of the tumbler, while the other compartment permits water to escape freely from it and contains a valve operable by pressing an inverted glass downwardly against a displaceable platform to cause a jet of water to be projected into the glass. The apparatus comprises a cleaning compartment 5 and a rinsing compartment 6, both housed in a casing 1. Three detachable brushes 10, 11 are mounted in the compartment 5 and are all driven in the same direction from an electric motor 4. The middle brush 11 has a rounded top to facilitate the cleaning cf the interior bottom of a tumbler. When in use the compartment 5 is filled with water from hot and cold supply taps 26 until the brushes are immersed, a drain plug being inserted in the drain pipe 28. The rinsing compartment 6 is continually open to the drain pipe 28 through one leg of a Y fitting 29, the other leg of which is connected to an overflow pipe of the compartment 5. The compartment 6 has a single spray jet 13 for rinsing the interior of a tumbler and a spray ring 14 for rinsing the exterior of the tumbler. As shown in Fig. 4 the jet 13 is operated by depressing a circular platform 25 to open a valve 15 against the action of a spring 20 so that water flows from a supply pipe 21 to the jet 13. Simultaneously water is supplied to the spray ring 14 through pipes 23 under regulation by a needle valve 24.
Patent GB-253837-A (GB)
Title: Improvements in or relating to gaiters or leg and foot coverings
IPC: A41D17/00
Filed: 1926-03-08
Abstract: 253,837. Gray, E. A. March 8, 1926. Gaiters.-A gaiter or leg and foot covering comprising a leg portion with front opening is continued as an incomplete spat portion which is completed by an unsplit flap attached to one side and detachably fastened to the other. As shown, a leg portion 10 is continued as a spat portion 12 and has an opening at the front where it is provided with a tongue 17. An unsplit flap 21 is attached to an extension 11 one side and is provided with a buttonhole 23 to engage a button 25 on the other extension 12 and is also provided with a strap 22 for fastening. Hooks may be used in connection with eyelets and an elastic lace for fastening at the front.
Patent GB-489479-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23C7/00
Filed: 1938-03-03
Abstract: 489,479. Liquid-fuel burners. BOLT, F. L., and WALLSEND SLIPWAY & ENGINEERING CO., Ltd. March 3, 1938, No. 6648. [Class 75 (i)] A burner for liquid fuel or coal held in suspension in liquid fuel comprises a tubular convergent burner body A having a lateral air inlet B, a detachable discharge nozzle D threaded in the body A, a fuel injector tube C extending axially along the body A, and fitted at its forward end with a centrifugal atomizer K such as that described in Specification 421,166 and an air guide flap F fitted in the inlet B to impart a whirling motion to the air. The adjustment lever G of the flap F may be secured in position by a bolt and wing- nut. Specification 479,191 also is referred to.
Patent GB-360317-A (GB)
Title: Improvements in pneumatic tyres and methods of making the same
IPC: B29D30/00
Filed: 1931-03-04
Abstract: 360,317. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO., 1144, East Market Street, Akron, Ohio, U.S.A. March 4, 1931, No. 6723. Convention date, May 31, 1930. [Class 144 (ii).] A tyre casing of the small bead diameter type, for fitment directly on to a hub, is built up on a cylindrical former 16 with the cord plies so arranged that in the subsequent shaping operation the cords of two adjacent plies are caused to interfit to form a single ply. In the construction shown, the casing comprises an inner pair of plies 10, 11 with crossed cords, a similar outer pair 12, 13, and intermediate narrower plies 25, 26. The cords 27, 28 of the latter plies are also crossed, being parallel respectively to the cords 23, 30 of the plies 11, 12.
Patent GB-693908-A (GB)
Title: Improvements in or relating to compressors for filing trays for the accommodation ofpunched cards or the like
Inventor: DELAFORCE ALBERT JAMES SELBY
IPC: B42F17/02
Filed: 1950-03-17
Abstract: 693,908. Card indexes. ART METAL CONSTRUCTION CO. Feb. 22, 1951. [March 17, 1950] No. 6741/50. Class 146 (i). Locking followers. A compressor for a tray 1 for storage and manipulation of punched cards or the like comprises, at each side of a casing 3, 4, pawls 11 pivoted about a horizontal axis 12 so as to project rearwardly and arranged to be urged upwardly by springs 13 so as to cooperate with the underside of a track formed by a series of slots 9 on each side of the tray whereby forward movement of the compressor is permitted and backward movement prevented unless the pawls 11 are moved clear of the slots 9. The tray 1 has at each side a projection 2 forming a housing moving along the length of the tray in the lower part of which a channel shaped shoe 7 slides under a middle wall 8 provided with the slots 9. The compressor comprises front and rear casing members 3, 4 urged apart by conical springs 5, lugs on the shoes 7 being secured to the rear member 4 by screws 6. Each pawl 11 is pivoted to a stud 12 on the shoe 7 and the spring 13 engages a notch 14 to urge a tooth 10 on the pawl 11 upwardly into one of the slots 9. A bar 16 with a central operating lever 18 can be moved downwardly against the action of springs 17 so that its reduced ends 19 bear against the pawls 11 to move the teeth 10 out of the slots 9. The compressor is moved up to the stack of cards 15 and on further pressure on the rear member 4, the springs 5 are compressed until the teeth 10 engage the next slots 9 to hold the compressor firmly.
Patent GB-1030803-A (GB)
Title: Process for the manufacture of a decapeptide
IPC: C07K14/68
Filed: 1964-02-18
Abstract: ]  The decapeptide H - Ser - Tyr - Ser - Met-Glu(OH) -His - Phe - Arg - Try - SlyOH or a derivative or a salt thereof is prepared by condensing BOC - Ser - Tyr - Ser - MetN3 with H.Glu(Ot.Bu)His - Phe - Arg - Try-GlyOH and further preparing the tetrapeptide BOC - Ser - Tyr - Ser - Metome used to prepare the azide by (a) condensing BOC-SuOH with HMetome then forming in turn HSer-Metome, BOC - Tyr - Ser - Metome, HTyr-Ser-Metome and the tetrapeptide, or (b) condensing BOC-Ser-TyrNHNH2 and this with H-Ser-Metome to give the tetrapeptide.