baber/WOPTO huggingface dataset:
Patent GB-661607-A (GB)
Title: Insulating fire brick and process of manufacture
IPC: C04B38/02
Filed: 1949-05-06
Abstract: 661,607. Refractories. MORGAN CRUCIBLE CO., Ltd. (Babcock & Wilcox Co. of America). May 6, 1949, No. 12197/49. Classes 22 and 70 A high temperature insulating fire brick is obtained by forming a thixotropic slip containing a calcined refractory material and a small amount of particles of a metal which reacts with an acid to form hydrogen dispersed therein, chemically bloating the slip by reacting the metal particles with acid to evolve hydrogen in the slip, slop casting the slip in a mould while absorbing water from the slip to effect a thixotropic set. and drying and firing the moulded shape. Specified refractory materials are the oxides of aluminium, magnesum, beryllium and zirconium. The metal particles which may be iron are preferably obtained by grinding the alumina till it all passes a 200 mesh sieve by means of steel balls thus giving an iron content of about 0.1 per cent. The mould may be made of plaster of paris or iron. Porosity may be increased by additon of a small quantity of sawdust. In an example, alumina ground as above, was wet mixed with sawdust, ammonium dihydrogen phosphate and hydrochloric acid added. After moulding the mixture was fired at 3200‹F. In another example the phosphate is omitted and plaster of paris added, also the hydrochloric acid was replaced by sulphuric acid. In a further example, additional iron is included in the mix. The iron content is either removed by volatilization or is left as an iron salt on the outside of the fired material and may then easily be removed by trimming.
Patent GB-691674-A (GB)
Title: Improvements in and relating to feeder mechanism for knitting machines
Inventor: GOULD GORDON ROY
IPC: D04B9/10
Filed: 1949-05-09
Abstract: 691,674. Knitting-machines. CHARNWOOD ENGINEERING CO., Ltd. June 14, 1950. [May 9, 1949] No. 12259/49. Class 74 (ii). Yarn feeding mechanism particularly for a superposed cylinder machine comprises a series of yarn guides 8 individually movable from feeding to non-feeding position, a common member 14 for moving any selected guide from one position to the other, and a coupling member comprising a dog 17 movable by patterning mechanism to couple any selected guide 8 to the member 14 for movement. The guides 8 are slidably mounted in a direction parallel to their stems which have protruding pins 22 engaging in cam tracks in a plate 24 so that on movement of a selected guide towards feeding position its feeding end 10 is caused to clear the other feeding ends. The patterning mechanism may be in the form of a chain, pin-drum or the like, and spring-biased detents 28, one to each guide, may be provided for retaining any selected guide in feeding position. As applied to a latch-needle machine, the feeding end 10 of a guide moved to feeding position moves through a laying-in position, in which its yarn is laid on the closing latches, to its normal feeding position. Trapping and cutting mechanism are provided comprising a trapper and cutter 84, 85 for each guide 8, the trapper and cutting blades being selectively operated by means connected to the coupling member 17 for trapping and cutting a withdrawn yarn, and a common trapper-opening device being provided for releasing the yarn of a guide selected for introduction to feeding position.
Patent GB-579702-A (GB)
Title: Improvements in or relating to the manufacture of degradation products of starch
IPC: C08B30/12
Filed: 1944-06-28
Abstract: Degradation products of starch are prepared by subjecting starch or a starch-containing material such as flour to dielectric heating at high frequencies, e.g. over 100,000, between the plates of a condenser, in the presence or absence of water, acid, chlorinating-agent, alkaline-reacting substance, or an enzyme such as diastase.  If heating is effected below 100 DEG  C. in the presence of an acid such as sulphuric, or an enzyme, and with a water content of 10-35 per cent, a glucose-containing material is obtained; if the acid and enzyme are absent, or are present in only small amounts, or if alkaline-reacting substances are present, a swelling starch results.  At a temperature of 100-130 DEG  C. in the presence of an acid or chlorinating-agent, a soluble starch is obtained, while a British gum or dextrine is obtained by heating to 130-200 DEG  C. Degradation products, normally insoluble in water, e.g. soluble starch or white dextrine, are rendered soluble in cold water by dielectric heating to a temperature of 50-100 DEG  C. in the presence of up to 35 per cent by weight of water.  Cold water-soluble dextrine subjected to dielectric heating in the presence of up to 25 per cent of water results in a product in which the particles are fluxed together and which dissolves without forming lumps.  The processes may be carried out under increased or decreased pressure.  The material under treatment is preferably carried by a travelling band.
Patent GB-811025-A (GB)
Title: Improvements relating to cosmetic carriers
IPC: A45D40/00
Filed: 1957-04-16
Abstract: 811,025. Lipstick &c., holders ; packaging lipsticks. CLEMENTSON, L. April 16, 1957 [April 26, 1956], No. 12409/57. Classes 18 and 94(1). Lipstick carriers 10 each comprising a recess 15, a reduced portion 11 and an applicator 12 coated with colour compound 13 are joined together to form a rod, the parts 11, 12 and 13 of each carrier 10 being received by the recess 15 of the one above. Any number of carriers 10 may be thus combined, a removable closure cap 14 being fitted to the topmost; in addition, projections 16 and 17 may be provided for joining the parts by a seal. A tape 18 may be used to join the carriers 10.
Patent GB-107694-A (GB)
Title: Improvements in Cigarette and like Cases.
Inventor: JONES ALBERT WETMORE
IPC: A24F15/14
Filed: 1916-09-02
Abstract: 107,694. Jones, A. W. Sept. 2, 1916. Contents, delivering; fittings, internal.-A case for holding cigarettes or like articles comprises two hinged parts a<1>, a<2>, each of which has a spring- controlled slide i and a delivery aperture m to enable the cigarettes &c. to be removed one at a time without opening the case. The cigarettes in each half of the case are held in place by guides b', b<2> and are pressed towards the delivery end by one or more spiral or other springs h. One or both halves cf the case may be provided with a match receptacle, which is formed by a partition c and has a delivery opening d'normally covered by a slide.
Patent GB-727569-A (GB)
Title: Improvements relating to the shrinking of collars and other fabric articles
Inventor: SCREETON BERTRAM EVERARD
IPC: A41H33/00
Filed: 1951-05-28
Abstract: 727,569. Shrinking fabrics. BRADFORD DYERS' ASSOCIATION, Ltd. May 28, 1952 [May 28, 1951], No. 12473/51. Class 42 (1). A collar or other stitched fabric article having parts differing in thickness is compressively shrunk in an apparatus of the kind in which an endless belt 1 changes its curvature while passing over two end rollers 2, 3 and being pressed against roller 2 by an intermediate roller 4 contracts in so doing, the article being pressed against the surface of the belt and contracting with it; the belt is made of a material such that pressures applied by it to the parts of different thickness are substantially proportional to those thicknesses, and is positively driven by roller 3 so that the driving thrust transmitted through the article is small. The required property of the belt is stated to be provided by a material (e.g. a synthetic or natural rubber) having a Shore hardness of 45 to 55 degrees. Roller 4, which is pressed into operative position by a cam 5 controlled by a handle 7, is heated to a temperature of 320-390‹ F. to render the article plastic and to set the shrinkage. Roller 2 may be driven, in addition to roller 3. The article may be slightly underfed to the shrinking operation by a pair of nip rolls 11 rotating at a peripheral speed rather lower than that of the other rollers. Specifications 402,087, 541,831, [Group VII], and 727,591 are referred to.
Patent GB-401304-A (GB)
Title: Process for the manufacture and laying of artificial sporting surfaces
IPC: E01C13/06
Filed: 1932-05-02
Abstract: A composition for surfacing artificial cricket pitches and other sporting surfaces consists of fibrous material, plastic material of the nature of clay, and very finely divided non-plastic, preferably siliceous material.  A typical composition contains 16-44 per cent of asbestos, 0-24 per cent of sawdust, 6-12 per cent of clay, with silica and fine sand as the balance.  It is applied in a moist condition and consolidated with a cold or heated roller.
Patent GB-1130295-A (GB)
Title: Improvements in or relating to electro-mechanical co-ordinate switches
Inventor: PRIOR HECTOR THOMAS
IPC: H01H67/26
Filed: 1966-03-22
Abstract: 1,130,295. Cross-bar switches. INTERNATIONAL STANDARD ELECTRIC CORP. 17 March, 1967 [22 March, 1966], No. 12557/66. Addition to 1,091,495. Heading H1L. In a cross-bar switch of the kind disclosed in the parent Specification 1,091,495 where a coordinate array of contact sets and co-ordinate operate bars are contained in a sealed box and movement of a bar is made by a rod which is connected to one end of the bar and which passes through an individual flexible diaphragm in the wall of the box, the present invention provides a further diaphragm in an opposite wall for each bar to which its other end is attached. Movement of the bar due to changes in pressure within the box relative to the outside are thereby avoided.
Patent GB-1095257-A (GB)
Title: Measuring the specific gravity or density of gases and apparatus therefor
Inventor: DORSCH DIETER
IPC: G01G19/00
Filed: 1965-03-26
Abstract: 1,095,257. Measuring specific gravity electrically. BADISCHE ANILIN - & SODAFABRIK A. G. March 26, 1965 [March 28, 1964], No.12859/65. Heading G1N. The specific gravity or density of a gas is determined by measuring the frequency of vibration of an electrically maintained tuning fork exposed to the gas. It is stated that the frequency is independent of the composition and viscosity of the gas. As shown, Fig. 9, the measuring head comprises a tuning fork 1 mounted inside a pressure pipe 2 by means of a tapered shank 3 held in place by threaded ring 6. The tuning fork is electrically maintained by electromagnets 10 and 11 and amplifier 12. The output of the amplifier is mixed with a constant frequency signal provided by crystal controlled oscillator 15 and frequency divider 16, and the difference frequency is selected by low pass filter 18 and measured by frequency meter 20. The electromagnets 10, 11 each comprise a pair of ferromagnetic polepieces (8), Figs. 1 and 2 (not shown), surrounded by coils and bridged by permanent magnets (9). The polepieces (8) are welded into apertures in the pipe 2 which is made of low permeability steel. The tines of the tuning fork have heads (7) shaped to correspond to the internal surface of pipe (2), and may also have one or more baffle plates (13, 14), Figs. 5 to 8 (not shown), of aluminium or titanium alloy to increase the variation of frequency with specific gravity. The measuring head (21) may be mounted on a by-pass tube, Fig. 11 (not shown), or directly on the main duct (24) using a Pitot tube (23) to ensure that the head (21) is always flushed with gas, Fig. 12 (not shown).
Patent GB-310536-A (GB)
IPC: C01C1/249
Filed: 1929-04-25
Abstract: 310,536. Still, C. April 28, 1928, [Convention date]. Rotary filters.-Neutral ammonium sulphate is prepared from the mixture of crystals and mother liquor from a saturator by separating the crystals in a rotary suction filter having a plane or cylindrical filter surface and passing ammonia over and through the layer of crystals on the filter. A rotating filter drum is covered by a hood a and a current of ammonia, air containing ammonia., or vapours of ammonia carbonate is supplied by a pipe c and is drawn by the suction pump of the filter over the layer of crystals and then through the layer. The current of vapours may be first, forced from the inside of the drum through the crystals and afterwards be drawn inwardly through the crystals. The crystals are removed by a scraper a. The exhaust air from the suction pump may be passed through a layer of the acid mother liquor to free it from excess of ammonia.
Patent GB-383288-A (GB)
Title: Improvements in combined range and view finders for photographic cameras
IPC: G03B13/20
Filed: 1931-05-01
Abstract: 383,288. Photographic view-finders ; range-finders. ZœGEL, W., 2, Rontgenstrasse, Munich, Germany. May 1, 1931, No. 12919. [Classes 97 (i) and 98 (i).] A photographic view and range-finder comprises a sighting aperture or an optical system for view-finding and a focusing device comprising a transparent reflector through which the object is viewed by means of the finder, and a reflector whereby an image of the object is reflected on to the transparent reflector, one of the reflectors being movable and operatively connected to the focusing adjustment of the camera lens so that focusing may be effected by rendering the images coincident. As shown, the range-finder comprises a view-finder arm 1, 5, a second similar arm 8, 9, an eyepiece 2, a transparent reflector 3, and a movable reflecting prism 7 provided with a lever 11 pressed by a spring 12 against the bracket 14. Focusing of the camera lens 6 by rotation of the threaded ring 13 rocks the prism 7 through the engagement of the cam surface 18 with the rod 16 carrying the bracket 14. A coloured glass 4 is inserted in one arm of the range-finder. A modification for use in combination with a telephoto lens and an open aperture viewfinder is described. Specification 371,252 is referred to.
Patent GB-963434-A (GB)
Title: Oxidation of hydrocarbons
Inventor: PEARCE NORMAN HENRY
Filed: 1961-04-11
Abstract: Aliphatic hydrocarbons are oxidised with molecular oxygen at elevated temperature in the liquid phase in the presence of a compound of cobalt which is soluble in the hydrocarbon feedstock and has previously been subjected to heat treatment in solution in the hydrocarbon feedstock. The hydrocarbon feedstock is preferably a mixture of hydrocarbons derived from petroleum, such as odourless kerosene.  In an example kerosene is oxidised in the presence of cobalt naphthenate which had been subjected to preliminary heat treatment as above to give carbonyl compounds, free acid and ester.
Patent GB-1028518-A (GB)
Title: A device in sewing machines for producing a fold in a cloth at the same time as a seam is produced
IPC: D05B73/12
Filed: 1964-03-26
Abstract: 1,028,518. Sewing machines. M. I. DAVIDSON. March 26, 1964, No. 13005/64. Heading D1G. The needle bar 1 of a sewing machine has secured thereto a holder 3 for a stem 4, the lower edge of which is wedge-shaped and enters a slot 14 in the throat plate 21 when the needle bar is lowered, for producing a channel-like depression in a work piece to facilitate folding of the latter along side depression. Stem 4 screws into holder 3, and the flattened upper portion of stem 4 abuts a spring-biased plunger.
Patent GB-495553-A (GB)
Title: Controlling device for the rollers of blinds
IPC: E06B9/78
Filed: 1938-05-02
Abstract: 495,553. Roller blinds. LAURIALA, E. T. May 2, 1938, No. 13082. [Class 20 (iii)] A brake or holding device for a blind roller consists of a weighted lever 6b pivoted at 9 and releasable by means of the actuating cord 8 and cord guide 7. The end 6b of the lever engages one or both wavy-edged flanges 5 of the cord pulley or may engage between the flange and supporting bracket. In the latter case, the end 6b may be made of rubber or covered therewith.
Patent GB-1325412-A (GB)
Title: Process of making magnesium oxide cores
IPC: B22C9/10
Filed: 1972-03-21
Abstract: 1325412 Foundry cores UNITED AIRCRAFT CORP 21 March 1972 [29 June 1971] 13178/72 Heading B3F [Also in Division C1] A water-soluble MgO core for use in investmeat casting is formed by mixing an aqueous solution of MgCl 2  with MgO powder which is poured into a die and left to harden before firing to oxidize the MgCl 2  to MgO. The core may be coated with zirconia particles having an average size less than 100 Á. After casting, the core is removed with steam or with hot water in an autoclave.
Patent GB-476866-A (GB)
Title: Improvements in centrifugal casting
IPC: B22D13/02
Filed: 1936-05-12
Abstract: 476,866. Casting-machines. BOLTON & SONS, Ltd., T., and CHILD, G. W. May 12, 1936, No. 13375. [Class 83 (i)] A pipe is made by pouring molten metal into a rotating mould 1 having a core 14 and withdrawing the solidified pipe continuously. The mould has a heat radiating fin 5, a driving pulley 3, and a non-rotating reservoir 31 for the molten metal, carried by a counterbalanced slide 6 which can be clamped to its guides 8 by screws 9. The core is free to rotate in its supporting and counter-balanced slide 17 and has a brake drum 49 engaged by a belt 48. The mould bottom comprises an annular plug 33 having a recess 34 to be engaged by the molten metal and adapted to be moved down by a slide 37 engaged by a screw 38 driven by gearing 44, 41 and a belt.
Patent GB-145943-A (GB)
Title: A new or improved collar for attachment to shafts, spindles, and the like
IPC: F16B2/06
Filed: 1919-05-28
Abstract: 145,943. Steel & Screw Co., and Pullin, A. May 28, 1919. Ferrule-extracting tools. - A split collar a is secured on a shaft or the like b by its own elastic grip, and, to facilitate application, removal, and adjustment, a screw-thread d is formed in the split c and a tapered screw e with a head e<1> for engagement by a spanner is inserted therein to expand the collar and release its grip on the shaft.
Patent GB-167319-A (GB)
Title: A new or improved rack or support for clay or clay ware to be used in conjunction with potters' drying stoves
IPC: F26B25/18
Filed: 1920-03-17
Abstract: 167,319. Beardmore, F., Moore, B. J., and Boston, Ltd., W. May 17, 1920. Racks.-A collapsable racli or support for clay or clay ware, to be used in connection with potters' drying-stoves, consists of a number of frames or partitions 2, Fig. 1, suspended from rollers running on overhead rails or guides and provided with skeleton shelves or projections to support the goods to be dried. Hinged stays r and u may be employed to keep the partitions in place when the rack is extended. The shelves may be in the form of removable strips or flexible webs of canvas &c., or they may be hinged or fitted in sockets. They may be hinged at one side only and connected by rods so as to be moved simultaneously. The supports may be in the form of parallel racks or ladders attached to the partitions by clips or brackets and extending between them so that filled moulds may rest on the cross pieces or rungs. In a modification, Fig. 12, the rack is collapsable vertically.
Patent GB-1109721-A (GB)
Title: Drawing compound
IPC: C10M173/00
Filed: 1965-03-30
Abstract: A drawing compound for sheet metal consists essentially of the following components in the quantities indicated in per cent by weight of the compound: 15 to 75% of a water-soluble soap which is a sodium, potassium, or amine rosin soap, or a sodium or potassium soap of a fat or fatty acid or a mixture of such fats or acids whose titre does not exceed 30 DEG  C., or an amine soap of fatty acids whose titre does not exceed 30 DEG  C., or a mixture of said fatty acids, and mixtures of the foregoing soaps, in which at least 10% by weight is rosin soap; 0 to 15% of an organic fluid which is dimethyl sulphoxide, a glycol, an ether of a glycol, a mixture of glycols, a mixture of ethers of glycols or a mixture of glycols and ethers of glycols; 0 to 12% of water; the balance being an oil having a maximum viscosity of 4000 SUS at 100 DEG  F., which oil is aliphatic oil (which term includes fatty oils), napthenic oil or mixtures of said oils with or without aromatic type oil, the aromatic type oil not exceeding 50% by weight of the total oil, which oil may be chlorinated. The rosin soaps may be made by saponification with an aqueous alkali such as sodium or potassium carbonate or hydroxide, or triethanolamine, of rosins such as wood rosin, gum rosin, tall oil rosin, hydrogenated rosin or polymerized rosin.  The fatty acid soaps may likewise be made from natural oils and fats such as palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, tall oil fatty acids, coconut fatty acids, or acids derived from corn, soya or bean oils.  The compositions may also contain chlorinated paraffin, unsaponified rosins and fatty acids, and free triethanolamine. The oil used may be sulphurized.
Patent GB-894255-A (GB)
Title: Semiconductor devices and method of manufacturing them
IPC: H01L21/60
Filed: 1958-04-29
Abstract: Alloys for use in the manufacture of PN junction rectifiers (see Group XXXVI) consist of tin or lead containing 1/2 % by weight of antimony, and aluminium containing 1-5% by weight of gallium.
Patent GB-1042821-A (GB)
Title: Radar system
IPC: G01S7/28
Filed: 1963-04-05
Abstract: 1,042,821. Pulse radar. CANADIAN PATENTS & DEVELOPMENTS Ltd. April 5, 1963 [Jan. 23, 1963], No. 13560/63. Heading H4D. A radar system comprises means for emitting beams P1, P2, Fig. 1, means for displaying echoes returned by a projectile intersecting the beams and for determining range and azimuth values of the intersection points b, and a, Fig. 5. measured from the radar with respect to an azimuth datum, means for supplying a computer with those values, with the angle # the lower beam LB makes with the horizontal HP, with the angle α between beams and with the ange # a working plane WP makes with the horizontal, the computer having means to calculate at least approximately the co-ordinates of a target point on working plane WP through which the trajectory of the projectile extends, and means for observing visually the point of burst of the projectile and for setting the computer for a working plane passing through the observed point of burst. The embodiment described incorporates the radar system described in Specification 1,042,822 and adds to it a telescope mounted on the aerial assembly so as to be aligned with the centre-line of the lower beam, as indicated by the intersection 41. Fig. 4, of cross wires in the eye-piece. An index 42 is moved by knob 43 to be aligned with the observed projectile burst AB; the knob rotation is repeated to a pointer 14 inside the vehicle V (Fig. 1). The radar operator turns a hand wheel until the point 13 (corresponding to angle #) coincides with pointer 14, so that # becomes - #<SP>1</SP>, Fig. 5. The computer thereby yields the co-ordinates of point AB. In a modification the computer is fed automatically as soon as index 42 is aligned with the burst point AB, Fig. 10a.
Patent GB-667933-A (GB)
Title: Filter
IPC: B01D37/00
Filed: 1950-05-31
Abstract: 667,933. Filters. RANE, L. May 31, 1950 [June 11, 1949], No. 13618/50. Class 46 A filter, for example for incorporating in a bloodtransfusion apparatus, comprises a casing 10 provided with a drip nozzle 34, a series of filter elements 50 separated by washers 52, and with a transparent sighting tube 40 for observing the rate of drip. The parts 12 and 14 forming the part 10 have a washer 18 interposed between them and may have milled outer surfaces at the regions of largest diameter. The elements 50 are of fine wire net or of nylon textile fabric or of foraminous discs of nylon or hard rubber. An upper tubular extension 24 receives the end of a flexible tube (not shown) while the lower end of the sighting tube 40 may be provided with a reduced extension to receive a further flexible tube.