baber/WOPTO huggingface dataset:
Patent GB-831835-A (GB)
Title: Improvements in or relating to the manufacture of refractory ceramic materials
Inventor: DAVIES FRANK WILLIAM
IPC: C04B33/02
Filed: 1957-07-30
Abstract: A refractory ceramic material having a high resistance to thermal shock is manufactured from a mixture consisting of, by weight, 19 to 34% of a magnesium silicate e.g. steatite, 20 to 27% of a clay e.g. ball clay, 6 to 17% alumina, 11 to 30% zircon and 13 to 22% of a substance containing a fluoride or phosphate of lithium e.g. amblygonite, by shaping the moist mixture, a binding agent being added if desired, and heating to between 1050 DEG C and 1250 DEG C, preferably between 1125 DEG C and 1160 DEG C.  The refractory body formed consists of 30 to 45% cordierite, 11 to 30% zircon and 10 to 18% of one or more lithium containing substances, and a small proportion of a vitreous phase.  Other refractory magnesium compounds e.g. spinel, Mg Al2 O4, may also be present besides cordierite and these, as well as the latter and the lithium substances are preferably in the form of crystals not greater than 5 microns in their largest dimension.
Patent GB-919295-A (GB)
Title: Knitted open mesh fabric
IPC: D04B21/10
Filed: 1960-07-11
Abstract: 919,295. Knitting. MAYER TEXTILMASCHINENFABRIK G.m.b.H., KARL. July 11, 1960 [July 15, 1959], No. 24151/60. Class 74 (2). An openwork fabric is composed of chain stitches 1 and unknitted weft yarns 2, 3 which extend across adjacent wales in an evenly repetitive sequence in alternation.
Patent GB-1469326-A (GB)
Title: Apparatus for stripping foundry moulds from castings
IPC: B22D29/00
Filed: 1974-06-01
Abstract: 1469326 Stripping moulds PROEKT KONSTRUKT BJURO ELEKTRO AKAD NAUK UKRAIN SSR 1 June 1974 24373/74 Heading B3F [Also in Divisions C7 and H1] Apparatus for stripping foundry moulds from castings comprises means 7 for feeding highvoltage discharge electrodes 5 relative to an inclined mould container 3 in a fluid bath 1, an outlet slide gate 20 on the container linked with charging and discharging means, means 19 in the container for tilting the moulds 4 to expose the surface to electrical discharges and means 9 for removing the separated castings and moulds. A mould 4 rests in the container 3 with one end projecting into an internally-toothed ring 19 which is advanced by a pneumaticallyoperated ratchet to rotate the mould. In operation, the mould turning means 19 and the removal conveyer 9 operate continuously. When a mould is dumped through the opening 15 into the shoot 23, Fig. 3, a shutter 24 is tilted to rotate a cam 25 engaging a roller on a distributer 40 to supply pressure air to a cylinder 30 to raise the outlet gate 20 through a cable 37. A pneumatic time relay (42) is also energized. The separated parts drop through the gate into the conveyer 9 and the relay times out and closes the gate. As the piston of the gateraising cylinder 30 rises, a washer 36 thereon trips a lever 31, frees the cam 26 and allows the weight of the waiting mould to open the shutter 24 fully. The mould then drops down into the container 3. The position of the electrodes during operation is controlled by the magnitude of the current or by the size of the casting or by a pressure transducer or by sound. The moulds are in the apparatus about 2 seconds.
Patent GB-343495-A (GB)
Title: An improved warp stop motion arrangement for looms
IPC: D03D51/20
Filed: 1929-08-10
Abstract: 343,495. Loom float detectors. MASCHINENFABRIK RœTI, VORM. C. HONEGGAR, R³ti, Zurich, Switzerland. Aug. 10, 1929, No. 24470. Convention date, Nov. 1, 1928. Void [Published under- Sect. 91 of the Acts]. [Class 142 (i).] A warp stop motion comprises an armed ring 7 pivoted in a slot in the side of the shuttle, the arm 8 during the forward motion of the lay normally striking a rod 12 to throw the stop motion out of gear. When a warp thread 9 breaks it turns the arm 8 out of way of the rod 12. As an alternative the ring may have two other arms 81, 8<2> one of which when a warp breaks is turned into line with a rod 12 which operates the stop motion.
Patent GB-855928-A (GB)
Title: Magnetic separators
IPC: B01D35/06
Filed: 1957-08-02
Abstract: 855,928. Magnetic separators. THOMA, J. U. Aug. 1, 1958 [Aug. 2, 1957], No. 24541/57. Class 117 A magnetic separator for the extraction of impurities from fluids such as lubricating oils and coolants is provided with a magnetic element comprising a brass or other non-magnetic tube 1 which contains a series of permanent magnets 2 with like poles opposing each other and separated by pole pieces 3. There is an air gap between the magnets and the inside wall of the tube but the pole pieces fit closely or with an interference fit in the tube. A tube 7 of non-magnetizable material has groups of perforations 12 at each end and, in combination with the tube 1, forms a sedimentation chamber of annular crosssection. The space 8 provided between the perforated tube 7 and the outer casing 6 of the separator is divided into upper and lower compartments by a washer 9. Longitudinal guide ribs 13 may be provided to cause axial flow of the fluid. The continuity of the edge of each pole piece disc may be broken to produce a concentration of magnetic field at separated areas of the tube 1, and the air gaps between the magnets and the tube may be completely or partly filled by material such as cardboard, plastic, or brass, preferably in the form of sleeves. Specification 855,929 is referred to.
Patent GB-1143347-A (GB)
Title: A connector for fitting to circuit boards
Inventor: GREASLEY ERIC ARTHUR
IPC: H05K3/32
Filed: 1966-06-02
Abstract: 1,143,347. Surface connectors for printed circuit boards. PRESSAC Ltd. 27 April, 1967 [2 June, 1966], No. 24572/66. Heading H2E. Resilient lances 5 on a connector body 1 snap-fit in printed circuit board apertures 7, so latching the body 1 to the board with contacts, Fig. 7, which are housed in parallel bores in the body, engaging printed circuitry 9. Each contact has a forward circuitryengaging part 11 and rearward parts 13, 14 which are crimped to the conductor and insulation of a lead wire. The lances 5 are of different widths to polarize the connector. Preferably, spring clips 10 are locked in grooves in the body 1 by barbs 10c.
Patent GB-1440881-A (GB)
Title: Door assemblies
IPC: E06B7/23
Filed: 1974-06-04
Abstract: 1440881 Doors ANACONDA CO 4 June 1974 [6 June 1973] 24588/74 Heading EIJ A pivoted door assembly includes a fixed frame with a pivot jamb 28 having a projection 31, a door pivot stile 23 of part-circular cross-section with the pivots located centrally, the projection and stile being spaced less than finger width, a resilient arcuate guard (38, Fig. 4) on the door lock stile being of a width greater than finger width. Push 'bars 25a, 25b extend across the door and each has one end received in pivot stile 23 and the outer end secured by screw (43, Fig. 4). Lock cylinders 44 also extend through the push bars. In Fig. 8 (not shown) the push bars are replaced by intermediate rails (75) with pull members (79).
Patent GB-695929-A (GB)
Title: Improvements in nickel plating
IPC: C25D17/10
Filed: 1951-10-22
Abstract: An improvement in the invention disclosed in Specification 643,926 comprises an anode for use in the electro-deposition of nickel consisting of a cathode sheet of electrolytic metal having the normal columnar grain structure modified to an equi-axed grain structure with the grain size throughout the body of the sheet averaging not less than .090 millimetres.  The grain size may vary from .035 mm. to over .2 mm.  The anode is prepared by subjecting the cathode sheet to a temperature not far below the melting point of nickel, preferably between 2200 DEG F and 2500 DEG F and in any case above 2100 DEG F.
Patent GB-1211423-A (GB)
Title: A method of producing polyacrylonitrile and copolymers thereof
Inventor: KRASULINA VALENTINA NIKOLAEVNA
IPC: C08F20/42
Filed: 1968-05-23
Abstract: 1,211,423. Metal alcoholates of α-hydroxyalkylamines. INSTITUT VYSOKOMOLEKULYARNYKH SOEDINENY. 23 May, 1968, No. 24600/68. Heading C2C. [Also in Division C3] Novel alkali metal alcoholates of α-hydroxy alkylamines having the general formula wherein R is alkyl or aryl, R<SP>1</SP> is H, alkyl or aryl and M is alkali metal are prepared by (a) reacting, in a hydrocarbon medium, a compound MNR 2  with a ketone or aldehyde RR<SP>1</SP>CO or (b) by reacting the alkali metal M, or MR, with a compound R<SP>1</SP>CONR 2 . In the examples the metals are Na and Li and amongst the alcoholates prepared are C 4 H 9 CH(OLi)- N(CH 3 ) 2 , (CH 3 ) 2 NHC(OLi)-CH(OLi)N(CH 3 ) 2  and C 4 H 9 CH(OLi)N(CH 3 )C 6 H 5 .
Patent GB-1300089-A (GB)
Title: Lining roofs
Inventor: SINCLAIR COLIN JAMES
IPC: E04D12/00
Filed: 1969-05-14
Abstract: 1300089 Lining roofs BRITISH INDUSTRIAL PLASTICS Ltd 12 May 1970 [14 May 1969] 24618/69 Heading B2E [Also in Division El] A method of lining a sloping roof supported by joists comprises covering the underside of the roof with an open weave fabric, e.g. hessian, by securing the fabric to the joists so as to form a space between the roof and the fabric and spraying resinous foam forming material through the open weave fabric to form a coating of resinous foam on the underside of the roof. The fabric may be subsequently removed from the coating. The foam may be an aminiopilast, e.g. urea or melamine formaldehyde or polyurethane. A three pipe spray gun is preferably used through which is fed an aminoplast, a foam hardener (e.g. phosphoric acid and detergent) and air or a polyester or polyether, a diisocyanate and water.
Patent GB-296315-A (GB)
Title: Improvements in incandescent electric tubes
IPC: H01K1/24
Filed: 1928-08-27
Abstract: 296,315. Hartman, H. Aug. 26, 1927, [Convention date]. Bulbs; leading-in wires.-A tubular lamp comprises an outer tube 1 of any desired configuration containing a series of tubular bulbs or units 2 having their caps 3 in contact with each other and with end caps 4 of the outer tube. Conducting springs may be placed between the end units 2 and the caps 4. The bulbs may be coloured or diffusing or both. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following :-The conducting springs may be placed between two of the bulbs 2, and to enable the filaments to reach nearly to the ends of the tubes, the leading-in conductors are bent backwards as shown in Fig. 5 (cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-632760-A (GB)
Title: New plastic compositions
IPC: C08K5/521
Filed: 1947-09-08
Abstract: Natural resins are plasticized by tri-nonyl ortho-phosphates Chlorinated paraffin wax, other nonyl esters, fillers, stabilizers and colouring matter may be added.  Such compositions can be used as lacquers.  Specifications 500,298, [Group IV], 521,093, [Group V], 573,840, 573,841, 579,550, [all in Group IV], 591,611, 600,270, [Group V], 632,757, 632,758 and 632,759 are referred to.ALSO:Organic thermoplastic substances are plasticised by tri-nonyl orthophosphates such as tri - 3,5,5 - trimethyl - 1 - hexyl orthophosphate. Cellulose nitrate, acetate, acetobutyrate and acetopropionate, ethyl or benzyl cellulose, polymers and interpolymers of vinyl chloride or acetate, vinylidene chloride, methyl methacrylate, or acrylonitrile, rubbery copolymers of butadiene with styrene or acrylonitrile, polyvinyl acetals particularly butyrals and halogenated polythene are specified. Chlorinated paraffin wax, other plasticisers such as nonyl esters of monobasic and polybasic organic acids, stabilisers, fillers, and colouring matter may be added.  In the examples, polyvinyl chloride is mixed with white lead, calcium stearate, titanium oxide and a tri-nonyl phosphate, or with china clay, white lead, ethyl palmitate, carbon black, a nonyl phthalate and a trinonyl phosphate.  The compositions may be used in lacquers, mouldings and coating cables.  Specifications 500,298, 521,093, [Group V], 573,840, 573,841, 579,550, 591,611, 600,270, [Group V], 632,757, 632,758 and 632,759 are referred to.ALSO:Synthetic rubbers such as Neoprene or rubbery copolymers of butadiene with styrene or acrylonitrile are plasticized by tri-nonyl orthophosphates.  Chlorinated paraffin wax, other nonyl esters, fillers, stabilisers, and colouring matter may be added. Such compositions may be used as lacquers for making shaped articles.  Specifications 500,298, [Group IV], 521,093; 573,840, 573,841, 579,550, [all in Group IV], 591,611, 600,270, 632,757, 632,758 and 632,759 are referred to.
Patent GB-784222-A (GB)
Title: Improvements in or relating to self-retaining bushes
IPC: F16C33/20
Filed: 1954-08-24
Abstract: 784,222. Eyelets, TYER & CO., Ltd., and ROBERTS, C. G. Aug. 5, 1955 [Aug.24, 1954], No. 24653/54. Class 89(1) [Also in Group XXXIV] An eyelet 1 has annular end-flanges 4 and longitudinal slits extending from one end to form limbs 6. The limbs 6 are contracted as shown in Fig. 1, to facilitate the insertion of the bush 1 in an aperture 2 in a supporting-member 3. After insertion, the limbs 6 spring outwardly and the bush is axially located by the flanges 4. The bush is preferably made of resilient, transparent plastic-material.
Patent GB-775192-A (GB)
Title: Improvements in or relating to waste-heat utilising devices for domestic and like fireplaces
IPC: F24B1/188
Filed: 1954-08-25
Abstract: 775,192. Heating air in open fireplaces. STEVENS, O. F. Aug. 25, 1955 [Aug. 25, 1954]. No. 24771/54. Class 64(3) A horizontal air-heating duct 14 lies in an open fireplace above and clear of the fire and is connected at opposite. ends to vertical conduits 10, 11 at the sides of the fireplace, one conduit 11 extending downwardly to an air inlet 18 near the floor, and the other upwardly to an outlet above and clear of the fire opening. In the form shown, the conduits are parts of upright tubes connected together by the duct 14 and by a duct 12 in which the outlets 20 are provided. Plugs 17, 21 close the upper part of the tube 11. A slide valve 19 and a pivoted damper 22 control the flow of air and flue gases. In another form used with a projecting chimney breast, a straight length of tube extending horizontally through a projecting chimney breast has a downward extension at one end and an upward extension at the other
Patent GB-174111-A (GB)
Title: Improvements in file binders
IPC: B42F13/24
Filed: 1921-03-22
Abstract: 174,111. Kayser, T., and Booth, E. J. March 22, 1921. Post files.-In an arch file of the kind provided with a, sliding member having an inclined slot therein engaging an arm to actuate the pivoted arch members, the sliding member g has an up. standing flange g<1> slightly inclined or curved backwards, and is mounted between a fixed or removable base-plate d and a superposed guidemember m, and is provided at each end with an operating thumb-piece g<2>. The arm or tongue engaging the slot in the flange g<1> projects from the lower portion of the pivoted arch members. The slide is slotted for engagement with pins l on the base-plate or superposed guide-member.
Patent GB-698159-A (GB)
Title: A method for the production of titanium dioxide powder
IPC: C01G23/07
Filed: 1951-10-24
Abstract: Discrete tetragonal crystals of titanium dioxide, useful in the manufacture of vitreous enamels and other ceramics, are produced by introducing gaseous titanium tetrachloride and oxygen and/or air heated to a temperature not higher than 800 DEG C, suitably 200-500 DEG C, into a reaction zone heated externally to 900-1150 DEG C, and reacting the gases in the absence of a flame to form titanium dioxide and chlorine, the volumes of the gaseous titanium tetrachloride and oxygen being maintained in the ratio 1 : 1 to 1 : 5.  The particle size increases with increasing amounts of oxygen, and with decreasing preheating temperatures.  The reaction conditions also determine the crystal habit varying from first and second order tetragonal bipyramidal crystals to first order tetragonal prismatic crystals.
Patent GB-288655-A (GB)
Title: A new process for producing artificial silk of an improved physical structure
IPC: D01D1/06
Filed: 1926-10-08
Abstract: 288,655. Iwasaki, T., and Hagiwara, K. Oct. 8, 1926. Colloidal sols.-The dispersed particles in a solution to be used for the spinning of artificial silk, are caused to arrange themselves in chain formation, by the action of the electric field produced by a high voltage electric discharge. The treatment is conveniently carried out in a chamber through which the solution is passed and in which a powerful spark discharge is maintained between conveniently disposed poles, the solution flowing in a direction parallel to the sparks; the chamber is preferably evacuated or is filled with hydrogen, nitrogen or other indifferent gas.
Patent GB-1358809-A (GB)
Title: Method of treating a glass body
IPC: C03C3/085
Filed: 1972-05-26
Abstract: 1358809 Treating glass bodies PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 May 1972 [29 May 1971] 25016/72 Heading C1M A method of altering the value of the surface electrical conductivity of a glass article comprises subjecting the glass article to a heat treatment in a reducing or oxidizing atmosphere which produces a surface layer in which the electrical conductivity is predominantly electronic, and then etching the glass article so as to remove a thickness of 200-10,000  of the surface layer. The glass article may be etched in an aqueous solution of an alkali metal hydroxide or in an aqueous solution containing hydrogen fluoride. The treated glass may be used in a dynode or a cathode-ray tube and has high electron multiplication factors. Suitable glasses which may be treated comprise in mol. per cent (a) SiO 2  66À0-73À4, PbO 4À9-14À9, B 2 O 3  2À0- 2À5, Na 2 O 2À1-16À0, K 2 O 0-9À6, Al 2 O 3  0À1- 1À1, As 2 O 3  0À1-0À2, CaO 0-3À1, ZnO 0-1À7, and MnO 0-0À2; and (b) SiO 2  71À1-75À1, Al 2 O 3  1À1, MnO 10À8-14À8, Na 2 O 5À9, K 2 O 0-6À9, Li 2 O 0-6À9, and As 2 O 3  0À2.
Patent GB-1029116-A (GB)
Title: Improvements in or relating to germanium transistors
IPC: H01L29/00
Filed: 1964-06-17
Abstract: 1,029,116. Transistors. SIEMENS & HALSKE A.G. June 17, 1964 [June 19, 1963], No. 25018/64. Heading H1K. A germanium transistor in which the collector zone is of higher resistivity than the base zone and which is attached by its collector zone to a Fe-Ni-Co alloy mounting plate may have its performance impaired by back injection of minority carriers present as impurities in the alloy. To avoid this the invention proposes the use of an alloy in which chromium and manganese and Group III and Group V elements are present, if at all, only in insignificant amounts. In practise this is achieved by mixing highly pure iron, cobalt and nickel and alloying them by sintering and by taking precautions that the mounting plate does not become contaminated during assembly of the device: e.g. by attaching the alloy mounting plate, carrying the transistor, to its permanent mounting only after the latter has been provided with its lead-out wires so that the alloy plate is not exposed to the high temperature and contaminating environment used in lead-attachment. The drawing (not shown) depicts such a transistor attached by a layer of gold alloyed both to the indium-doped collector and to the Fe-Ni-Co plate and with the antimony doped base and an aluminium alloyed emitter contact formed in a mesa on the collector.
Patent GB-930303-A (GB)
Title: Improvements in or relating to electrical capacitors and to impregnants for use therein
IPC: H01B3/48
Filed: 1961-07-11
Abstract: In a method of treatment of the impregnant of an electrical capacitor a compound decomposable to form nitrogen is added to the impregnant, which compound produces at the same time a hydrocarbon which does not detrimentally effect the electrical properties of the impregnant; <FORM:0930303/IV(a)/1> represents the composition of this compound, where R is selected from the group consisting of hydrogen and lower alkyl radicals containing 1 to 6 carbon atoms.  For example the compound may be 1-azo-bis-1-phenylethane, which may be prepared by condensing hydrazine and acetophenone to form acetophenoneazine, reducing to the hydrazo-compound and finally oxidizing.  This compound may be added in the form of a pellet to a container in which a convolutely wound capacitor element, containing a linear copolymer of a mixture of isobutylene and diolefin impregnant is positioned. The container is sealed immediately thereafter and heated, and at a temperature of 110 DEG C. the compound decomposes completely to produce nitrogen gas, which is dissolved in the impregnant.  On cooling the impregnant is already saturated with dissolved nitrogen and so does not absorb nitrogen from the air within the capacitor, so that the pressure within the container and thus the breakdown strength of the capacitor, is not reduced to any great extent.  The invention is therefore useful in preserving the electrical characteristics of high voltage, high stress capacitors.
Patent GB-750071-A (GB)
Title: Expelling water from the tube systems of steam generators
IPC: F22D1/02
Filed: 1954-08-30
Abstract: 750,071. Emptying steam boilers. SULZER FRERES SOC. ANON. Aug. 30, 1954 [Sept. 16, 1953], No. 25084/54. Class 123(2). The water contained in a once-through tube system of a steam generator, for example in all of the tubes of a forced through-flow boiler or in the superheater or economiser tubes of a convection circulation boiler, is expelled therefrom and the tubes dried out when the generator is shut down by driving a vapour or gas through the tube system in the reverse directon to that taken by the working medium during normal operation. Fig. 1 shows a steam plant consisting of a forced through-flow generator 4 supplying steam through an outlet valve 6 and pipe 7 to a turbine 11 which exhausts into a condenser 10 discharging condensate into a reservoir 12. A pump 1 supplies feed water from the reservoir through an inlet valve 2 to the tube system of the generator. When the boiler is shut down, the fire is extinguished, valves 2, 6 are shut and a valve 8 in a pipe 9 connecting the feed pipe to condenser 10 opened. Steam is produced in the tube system on reduction in pressure therein and forces all or most of the water therein into the condenser. If the steam produced is insufficient to expel all the water, steam can be blown in through a pipe 13 from another boiler 16 or air from a compressor 17 or an inert or corrosion-preventing gas such as nitrogen or ammonia from cylinders 18 may be used, only one of these expedients being provided in any one plant. Where steam has been used to expel the water the tubes are afterwards dried out by blowing air through the system.
Patent GB-1386678-A (GB)
Title: Electrical connector devices
IPC: H01R4/50
Filed: 1972-05-26
Abstract: 1386678 Terminals SIEMENS AG 26 May 1972 [28 May 1971] 25093/72 Heading H2E A connector is secured to a single wire conductor 14 by means of a screw 15 inclined at an accute angle to the axis of the conductor, and comprises a body of sheet metal folded to form a  contact 5 at one end and a channel shaped portion at the other end with a central portion 16 and arms 7 which hold a conductor-receiving member 6 by means of projections 11, the member 6 also being channel shaped with arms 10 engaged by the screw 15 The screw 15 has a frusto-conical end 20 with a peripheral knifeedge 21 for biting into the conductor. A plastics sheath 23 is applied. In another embodiment, the knife edge is omitted and the screw bears against a pressure plate (25) to press the plate against the wire, sharp edged projections (27, 28) being provided on the surfaces of the plate (25) and central portion (16) which engage the conductor. (For Figures see next page.)