baber/WOPTO huggingface dataset:
Patent GB-758437-A (GB)
Title: Improvements in ceramic semi-conductive material
IPC: H01B1/04
Filed: 1952-09-09
Abstract: A ceramic semi conductive composition comprises silicon carbide-major; tricalcium penta-aluminate-minor.  Also present may be an oxide of a heavy metal, e.g. cobalt, manganese, nickel, chromium, iron, or molybdenum.  The calcium aluminate can be incorporated as part of a mixture with alumina and silica, such a mixture forming 10-40 per cent of the whole composition.  An organic binder may also be present Specification 724,211 is referred to.
Patent GB-1007967-A (GB)
Title: Separator unit for microwaves
IPC: H01P1/213
Filed: 1962-06-13
Abstract: 1,007,967. Band-separation filters. SOC. NOUVILLE D'ELECTRONIQUE ET DE LA RADIO-INDUSTRIE. June 13, 1962 [June 23, 1961], No. 22704/62. Heading H1W. A Y-junction band-separation filter contains band-pass filters in the branches of the Y containing different numbers of sections. The filter is similar to that described in Specification 950,094 which has the same number of sections in each arm. In the example shown, the branch 2 contains a two-section filter having two shunt stubs 7, 8 designed to pass the lower of the two frequency bands and to reject the higher band. Branch 3, designed to pass the higher band and reject the lower band, contains three shunt stubs 4, 5, 6. All the stubs are tunable. The Specification gives details of the example including all relevant dimensions.
Patent GB-978675-A (GB)
Title: Method and apparatus for handling a solid-liquid slurry
IPC: B04B11/02
Filed: 1963-06-07
Abstract: 978,675. Centrifugal separators. COMBUSTION ENGINEERING Inc. June 7, 1963 [Aug. 6, 1962], No. 22750/63. Heading B2P. In a centrifuge for continuously partially removing liquid from a solid-liquid slurry, e.g. crushed coal in water, concentrate is discharged from a rotating bowl 48, Fig. 2, in a generally radial direction and impinges against a surface 96 of a rotatable collecting member 92 from which it is continuously removed by means of a plough 116, Fig. 4. The bowl drive shaft 5 1 is connected to a belt-driven pulley 75 and the shaft 72 of a screw conveyer 60 for moving the concentrate to discharge outlets 76 is driven from the bowl through gearing 74, at a speed different from that of the shaft 51. The bowl is mounted in a two-part casing 82 provided internally with baffles 84, 85, 87 which, co-operate with rings 86 on the bowl to prevent intermixing of the concentrate and liquid after they have been separated: The separated liquid is discharged from the bowl through one or more outlets 80 into a chamber 88 and passes into an outlet hopper 90. The collecting member 92 having a hub 97 supported in a bearing 99 is rotated at a speed much less than that of bowl 48 by means of a motor through gear 110 and chain 112. The plough 116, Fig. 3, which is stationary, is provided with. a bradset 118 clamped to the baffle 84 by means of plates 120 and screws 122 and is provided at its end adjacent the bradset with a downwardly directed baffle which directs the concentrate egressing through an opening 121 in the baffle 84, Fig. 4, into a discharge shoot 117. The coal slurry is pumped from a tank through a pipeline equipped with valves and a flowmeter to a hopper from which it is pumped through a supply conduit 68 and enters within the hub of the screw conveyer and escapes under centrifugal action through ports 77. The concentrate is conducted from the shoot 117 to a pulverizing mill and the pulverized coal is discharged to a fan which conveys it in a stream of heated air to a furnace.
Patent GB-1041724-A (GB)
Title: Colour television reproducing system
IPC: H04N9/26
Filed: 1963-06-07
Abstract: 1,041,724. Colour television. SONY CORPORATION. June 7, 1963 [June 9, 1962], No. 22913/63. Heading H4F. Relates to a colour television display system, Fig. 5, utilizing a cathode-ray tube 1 having a screen 2 formed of a sequence of red, green and blue phosphor strips and incorporating postdeflecton switching grids 4a, 4b for directing the electron beam on to strips of desired colour. The tube gun 5 is modulated by a composite N.T.S.C. type of signal, i.e. a luminance component Y plus a chrominance subcarrier Cs. In contrast to prior art, Fig. 4a, where the switching grids are controlled by a sinusoidal signal at subcarrier frequency, the invention, Figs. 4b and 4c, makes use of a signal comprised of a fundamental component at subcarrier frequency together with a second harmonic component. As a consequence the return transit time T<SP>1</SP>R of the beam across the centre (red) strips of a group of three is considerably shortened and the beam effectively scans the colours in a continuous sequence, i.e. B, R, G, B, R, G &c. which accords with the manner in which the colours are effectively presented by the subcarrier. Furthermore, a "key-out" signal consisting of pulses P at three times the subcarrier frequency is applied to blank the tube beam during the transitions between colour strips. In Fig. 4b the amplitudes of the fundamental and second harmonic components are equal; in Fig. 4c the amplitude of the fundamental is twice that of the second harmonic. The switching signal is generated as shown in Fig. 5 where an oscillator 12, which is synchronized by the subcarrier synchronizing "burst," applies an output via an amplifier 13 to circuits 14 and 15 for establishing respectively the fundamental (fo) and the second harmonic (2fo) components, appropriate proportions of the components being combined in a circuit 16 and applied to grids 4a, 4b.
Patent GB-301536-A (GB)
Title: Improvements in motor-driven rollers
IPC: E01C19/26
Filed: 1927-09-01
Abstract: 301,536. Death, H. N., and Smith, E. M. Sept. 1, 1927. Frame construction.-In a motor-driven roller comprising a main roller and a steering roller, the' main frame comprises two deep side, members or plates 10 spaced apart by compression tubes and connected together by screwed and headed tension rods or tubes 13 passing through the compression tubes.
Patent GB-598708-A (GB)
Title: Improvements in air heaters for horticultural and domestic purposes
IPC: F24H3/04
Filed: 1945-09-06
Abstract: 598,708. Unit air heaters. ALAVOINE, S. J. Sept. 6, 1945, No. 22980. [Class 137] [Also in Groups XI and XIII] A horticultural or domestic air heater comprises a heating unit, e.g. an electric heating element 3 or a gas or oil burner, mounted in and near the lower end of an open-ended copper or other heat-conducting tube 1 which is surrounded by a jacket 2 of asbestos or other heat-insulating material, the tube and its heating unit being mounted upright on a stand 10 so that air can circulate through and be heated in the tube, and a motor driven fan 13 being fitted adjacent to the lower end of the tube to accelerate air flow through the tube. The current for the heating element 3 and fan motor 14 may be thermostatically controlled. The outer surface of the asbestos jacket 2 is treated with waterproofing material.
Patent GB-1044838-A (GB)
Title: Improvements in or relating to cooking or blanching fruit or vegetables
IPC: A23L19/12
Filed: 1962-06-14
Abstract: 1,044,838. Preserving vegetables and fruit. R. A. S. TEMPLETON. Sept. 13, 1963 [June 14, 1962], No. 22994/62. Heading A2D. In the cooking or blanching of vegetables or fruit, heating to the cooking or blanching temperature is conducted by placing the cold raw vegetable or fruit into a cooking or blanching medium at a temperature not in excess of 55‹F. above the temperature of the vegetable or fruit and raising the temperature of the medium to the cooking or blanching temperature at a rate not in excess of 5‹F. per minute. Thus, the raw vegetable or fruit may be placed in water at a temperature not in excess of 105‹F. and the temperature of the water raised at about 2‹F. per minute to and maintained at a cooking temperature of 205‹-210‹F. until the vegetable or fruit has been cooked. Potatoes may be pre-cooked in water at a temperature of 140‹F.-180‹F. and then cooled, prior to the above described treatment; preferably, eevn in the pre-cooking, the potatoes are placed in water at a temperature not in excess of 55‹F. above the temperature of the potatoes and the temperature of the water is raised to the pre-cooking temperature at a rate not in excess of 5‹F. per minute. Vegetables, such as peas and other pulses, rich in protein are cooked at a temperature (about 140‹F.) slightly below that at which coagulation of the protein occurs. In the blanching of peas, the water should contain between 300 and 400 p.p.m. of sulphur dioxide.
Patent GB-684748-A (GB)
Title: Door control mechanism
IPC: E05B65/32
Filed: 1951-10-03
Abstract: 684,748. Swinging latches. SCHONITZER, R. I. Oct. 3, 1951 [March 6, 1951 ], No. 23018/51. Class 44 In a latch mechanism of the kind comprising a pivoted latch member mounted on the outside of a supporting plate to move with a control disc on the inside of the plate, a spring loaded detent co-operating with the control disc to retain the latch member in the locking position, a resilient finger-like element is provided on either the control disc or on the detent to deaden noises mechanically induced therebetween during latching. In the form of Fig. 1 a slot 17 is cut (e.g. by a saw) in the stop portion 10a of the arm 10 of the detent D to provide a resilient finger 18. Movement of the latch member L to latching position causes the pawl face 15 to engage first in the safety notch 9 of the control disc E and then in the fully latched position behind shoulder 6, Meanwhile the stop portion 10a first moves against a lug 7 and then against the face 8 producing two clicks which are deadened by the resilience of the finger 18 The finger 18 is backed by the remaining part 19 of the stop portion so that it cannot move beyond its elastic limit and take a permanent set. Fig. 4 shows an alternative arrangement the control disc E<SP>1</SP> being formed with a slot 29 providing a resilient finger 28 cushioning the impact of the stop portion 10a of the detent D<SP>1</SP>. The slot may enter from the other side of the control disc. Fig. 6 shows another form in which the movement of the detent M in the latch holding position is limited by a part 53 on the depending arm 51 engaging a face 57a of the control disc D. An opening 58 is stamped out behind this face and opened by a saw-cut 59, the resilience of the finger 60 thereby formed again deadening the click of the parts as they move to the fully latched position. In Fig. 7 the resilient finger 72 is formed by a slot 71 in the stop part 70 of the detent M. To deaden the click as the detent engages in the safety notch 66 of the control disc P a slot 67 is formed behind this part again to provide a resilient finger 68. Specifications 666,304 and 668,937 are referred to.
Patent GB-1292106-A (GB)
Title: Artificial insemination device
Inventor: BABEY VICTOR STEPHEN
IPC: A61D19/02
Filed: 1970-05-13
Abstract: 1292106 Artificial insemination devices V S BABEY 13 May 1970 [15 May 1969] 23067/70 Heading A5R An artificial insemination applicator device 10 is for use with a hollow thin-walled plastics semen straw (16), Fig. 2 (not shown), of tubular construction adapted to contain a predetermined semen dosage, and having a movable plug 22, 23, 22 internally disposed at one end thereof, the other end of said straw being adapted to be opened for discharge of the contents therefrom, said applicator device comprising: an elongated rigid tubular body 11; an ejection tip member 14 formed of synthetic plastics material secured, or securable, at one end of said tubular body and having a discharge pasageway extending therethrough; a sealing extension member 31 of generally frusto-conical tapering shape which is formed integrally with said ejection tip and which, when the tip is secured to said one end of the tubular body extends inwardly into said tubular body, said extension member having a top 32 and a base 33, there being an opening extending from said top to said base and connected to said discharge passageway; and an operating rod 25 removably insertable into said body at the other end thereof for engagement, in use, with the plug in a said straw within said body. Preferably the tip 14 is moulded separately from the tubular body 11, and the top surface 30 of the annular body 27 has an annular lip 35 positioned between the outer surface of the annular body 27 and the base 33 of the extension member 31. The body 11 and the ejection tip 14 are then welded together by a machine producing ultrasonic frequency vibrations. The open end 17 of the semen straw (16) is forced on the frustoconical outer surface of the extension member 311 providing a tight seal. A further embodiment, Fig. 7 (not shown), incorporates an outer sleeve or collar (40) on the ejection tip 14 to fit around the end of the body 11 to avoid roughness occurring at the welded junction due to "flashing" of the melted plastics.
Patent GB-1507802-A (GB)
Title: Curable polymer composition
IPC: C09K3/10
Filed: 1976-06-04
Abstract: 1507802 Curable polymer compositions RUTGERSWERKE AG 4 June 1976 [13 June 1975] 23132/76 Heading C3R A curable polymer composition comprises a liquid polymer having terminal mercapto groups and a microencapsulated paste of an oxidizing agent for curing the polymer and a plasticizer for plasticizing said polymer. Suit. able oxidizing agents are lead dioxide, manganese dioxide and cumene hydroperoxide which may be contained in capsules having a diameter of from 100 to 2000 Á. In a typical example microcapsules of diameter 800Á- consiting of a paste of lead dioxide and plasticizer in the ratio of 1 : 1 surrounded by a gelatin wall in the ratio gelatin to paste of 1 : 12, are dispersed in a mixture consisting of a polysulphide Mol. Wt. 4000 and viscosity at 27‹ C. of 350 to 450 poises; a plasticizer, fillers; an accelerator, e.g. sulphur and a thixotropic agent to produce a storage stable composition which when dispensed by a spray gun having an attachment for rupturing the microcapsules gave after two hours a cured, non-tacky, rubbery material. In another example the polysulphide was replaced by a mercapto group terminated polypropylene ether Mol. Wt. 6000 which had a viscosity of 25‹ C. of 60 poises. Uses.-These compositions may be used for caulking, moulding and sealing, e.g. when inserting windows into cars or to provide sealing, expansion joints in buildings.
Patent GB-207847-A (GB)
Title: Improvements in systems of electric control
IPC: B60L15/12
Filed: 1922-08-25
Abstract: 207,847. British Thomson-Houston Co., Ltd., (General Electric Co.). Aug. 25, 1922. Master control systems.-In a motor control system such as is employed for directing trolley vehicles from a remote point, an electromagnetic two-way switch of the lock-out type 15, is energized by currents of different strength according to the different settings of a remote master controller 17. If the controller is set on the forward side F, a resistance 18 is excluded and maximum voltage is applied to the lock-out switch, which is thereby retained in the position shown. If set on the reverse side R, a reduced voltage is initially applied to the lock-out switch, which is thereby changed over. The position of the lockout switch determines the direction in which current is supplied to a motor 10 through electromagnetic switches 13, 14 provided with additional hold-on series windings.
Patent GB-711624-A (GB)
Title: Process for disinfecting seeds
Filed: 1951-10-04
Abstract: A process for disinfecting seeds is characterized by treating p  the seeds, preferably in a rotating drum, with an aqueous solution free from substances having adhesive properties and containing an alkoxy alkyl mercury compound of general formula:-  <FORM:0711624/I/1> wherein A is a negative radical; n is 1 to 4 and m is 2 to 4; the amount of water in the solution being at least 50 per cent and the mercury at least 0.5 per cent by weight, the solution being used in quantities of not more than 0.6 per cent of the seed grains. Negative radicals are sulphate, nitrate, hydrochloride, formate, acetate, salicylate, sulphonate, or residues from acetone, urea or aceto-acetic ester.  Specified mercury compounds are methoxyethyl mercury hydroxide; ethoxy-methyl mercury hydroxide; ethoxyethyl mercury acetate or sulphate and isopropoxy-a  ethyl mercury hydroxide.  Optional additions, which are all water soluble, are (a) solvents, e.g. methanol, formamide and acetone; (b) bases, e.g. ammonia, sodium hydroxide, methylamine and ethanolamines; (c) salts, e.g. soda ash, sodium acetate and phosphates; (d) acids, e.g. acetic, lactic and citric acids; (e) dispersing agents, e.g. condensation products of fatty alcohols or alkyl phenols with ethylene oxides and (f) dyes.ALSO:An aqueous solution of methoxy ethyl mercury hydroxide free from substances having adhesive properties contains at least 50 per cent by weight of water and at least 0.5 per cent by weight of mercury.  It is used in the disinfection of seeds (see Group I). Optional additions are: (a) as methanol, amides such as formamide and ketones such as acetone; (b) water soluble bases such as ammonia, sodium hydroxide methylamine and ethanolamines; (c) water-soluble salts such as soda ash, sodium acetate and phosphates; (d) acids such as acetic, lactic and citric acids; (e) dispersing agents e.g. condensation products of fatty alcohols or alkyl phenols with ethylene oxide; and (f) dyes.
Patent GB-664664-A (GB)
Title: Improved sealing arrangements for use in annealing furnaces
IPC: F27D99/00
Filed: 1949-09-07
Abstract: 664,664. Annealing furnaces. FISCHER, AKT.-GES., G. Sept. 7, 1949 [Feb. 10, 1949], No. 23201/49. Class 51. (ii). In a continuous annealing furnace traversed by a succession of trucks, the gaps between adjacent truck platforms and between truck platforms and the furnace walls are closed by duplex seals comprising tubular elements disposed over the gaps and sand seals at a lower level. The platform 3 of each truck is formed with downwardly and outwardly inclined surfaces 4 and refractory tubular elements 5 close the upper end of the gap 10 between the truck platform 3 and the furnace wall 1, and the upper end of the gap 14 between adjacent trucks, sand seals 7 and 12 with associated plates 6 and 11 being provided to close. the lower ends of the respective gaps. The Specification as open to inspection under Sect. 91 describes a construction in which the tubular elements only are used to seal the gaps .between truck and wall and between adjacent trucks. This subject-matter does not appear in the Specification as accepted.
Patent GB-251509-A (GB)
Title: Improvements in, or connected with, steam superheaters
IPC: F22G7/06
Filed: 1925-09-17
Abstract: 251,509. English, W. E. Sept. 17, 1925. Addition to 236,971. Fire and smoke tube superheaters. -In superheaters of the kind described in the parent Specification, the bolts i, which act to force through bridge-pieces i<2> the superheater tube-ends against vertical openings in the header, are passed through the header from above, nuts i<4> being applied from below. Instead of forming the head in one with the bolt it may be constituted bv a screwed nut and the bolt shank may be rectangular in cross-section.
Patent GB-245199-A (GB)
Title: Improvements in the manufacture of size-softeners
IPC: C11D1/28
Filed: 1924-10-02
Abstract: 245,199. Marsh, J. W., and Aische, M. I. Oct 2, 1924. Soaps, compositions for making.-Softeners for size comprise a soap of a fatty acid, a sulpho-fatty acid or an oxy-fatty acid, or any mixture of such soaps, and a hydrated silicate or a substance containing a silicate or silica. Soaps of sodium, potassium, aluminium, magnesium, calcium, manganese, mercury and zinc are specified, and the silicious materials comprise chins, clay, allophane, pyrophyllite, talc, steatite, pinite, fullers earth, okenite, xonalite, apophyllite, and silicic acid. The soap or soaps are dissolved or suspended in water and incorporated with silicious materials. Deliquescent salts such as the chlorides of zinc, calcium, or sodium, or potassium carbonate may be added. When neutral soaps are used, preservatives such as sodium #-naphthionate, sodium salicylate, phenolates or pine-tar oil are added; and the compositions may also contain small amounts of phenols, and solvents such as carbon disulphide, dichlor-, tetrachlor- or pentachloretbylene, chloroform, or carbon tetrachloride. The size softeners are added to starch, dextrine, flour, &c. and water with or without fillers, to farm a size.
Patent GB-603109-A (GB)
Title: Improvements in and relating to bonded flexible non-woven fibrous sheeting suitable for use in adhesive tapes
IPC: C09J7/21
Filed: 1945-09-10
Abstract: 603,109. Agglutinated fibrous sheets; coated fabrics; paper. JOHNSON & JOHNSON (GT. BRITAIN), Ltd. Sept. 10, 1945, No. 23288. Convention date, Sept. 29, 1944. [Classes 96 and 140] A web of paper or an unwoven carded sheet or web of cotton has incorporated in the preformed web, to a extent of 40 to 60 per cent of the weight of the web, a copolymer of butadiene and another unsaturated organic compound by impregnating the web with an aqueous dispersion of the copolymer. The solid particles of the copolymer in the aqueous dispersion are preferably mainly less than 4 microns in diameter. The preferred unsaturated organic compounds are styrene, acrylic nitrile, alpha-methacrylic nitrile, alphaethacrylic nitrile, alpha-isopropyl-acrylic nitrile, isobutylene and methyl methacrylate. The aqueous dispersion may include a dispersing agent such as potassium rosinate or sodium stearate, an antioxidant such as diparaphenyl guanidine a filler such as carbon black and colouring agents. If it is desired to vulcanize the final product vulcanizing agents such as zinc dibutyl dithiocarbamate, tetramethyl thiuram disulphide zinc oxide and sulphur may be added to the aqueous dispersion. The paper may have rugosities such as are obtained by creping or embossing. The webs of cotton treated may be those described in Specifications 468,529 and 549,254 [Group VI]. The treated sheets or webs are suitable for use in packaging, as an " interliner" for adhesive tapes or as a backing for a pressure sensitive adhesive tape.
Patent GB-246890-A (GB)
Title: Improvements in and relating to duplicating
IPC: B41C1/14
Filed: 1924-10-02
Abstract: 246,890. Gestetner, D. Oct. 2, 1924. Stencils and stencilling.-Stencils, which may be employed for producing work on a large scale, e.g. posters, are prepared by the local application, by means of type, pens, brushes, &c., to the surface of a stencil sheet composed of a porous base and a layer impervious to ink including a gelatinized organic colloid such as gelatine, agaragar, starch, dextrine, carbohydrate gums, &c., of an agent adapted to liquefy or depress the gelating point of the colloid, the softened colloid being afterwards removed. Where the colloid is a protein, bodies included in the Hofmeister series, such as sulphuric acid, ammonium thiocyanate, or sodum iodide, may be employed as softening agents, and colouring matters may be associated therewith. To increase the viscosity and prevent the lateral spreading of the softening agent, substances such as carbon black, china clay, bentonite, or kieselguhr may be mixed therewith. The stencil sheet may be provided with a screen of material unaffected by the softening agent, such as a solution of celluloid, which may be sprayed to produce dots over the surface. Alternatively, the screen may be produced by printing. To remove the softened colloid, a paper sheet coated with blown rape oil may be pressed on to the stencil sheet, the softened colloid adhering thereto on removal. Preferably, the sheet bearing the softened colloid is treated with oily ink on a duplicating machine, the ink forcing its way through the softened portions and thus removing them. Where the inked portions of the stencil are of large size, the support may be of fine lawn and a brush may be used to remove the softened colloid; for finer work, Yoshino paper is employed for the base.