baber/WOPTO huggingface dataset:
Patent GB-839584-A (GB)
Title: A process for solidifying epoxy or phenolaldehyde resins
IPC: B29B9/04
Filed: 1957-12-09
Abstract: <PICT:0839584/IV (a)/1> <PICT:0839584/IV (a)/2> <PICT:0839584/IV (a)/3> <PICT:0839584/IV (a)/4> <PICT:0839584/IV (a)/5> <PICT:0839584/IV (a)/6> Liquid epoxy or phenolaldehyde resins of melting points 30-180 DEG  C. are solidified by a continuous process in which the resin is cooled under pressure between two internally-cooled rotating smooth rolls of a roller mill, the speed and temperature of the surface of the rolls and the clearance between the rolls being correlated in such a way that a transportable film, solidified at least on the surface, emerges from between the rolls, whereupon the resinous film is subsequently cooled and broken up into smaller pieces.  An epoxy resin derived from bisphenol A may be so treated.  The clearance between the rolls is preferably not greater than 1 mm. and usually lies between 0.25-0.6 mm., while the roller surface speed may be between 2-50 m./min., especially between 5-20 m./min.  A distributing device may be used to spread the liquid resin over the width of the rolls, and the resin may be cooled, preferably on a conveyer belt, only to such a degree that the film is flexible. As shown, liquid resin is discharged from a vessel 1 via cock 2 between the cooled rolls 3, 4 of a roller mill.  A distributing device may consist of a unilaterally serrated trough (Fig. 2a), or heated distributing rolls 11, 12. The film emerging from the nip of the rolls may be cooled on a conveyer belt 8, or by passing downward along a guide roll 16, with the use of forced air cooling if desired, or on one of the rolls 4 (Fig. 3a).  The film may then be broken up with a pin mill 9, 17, or with a scraper 15, 151.
Patent GB-1278414-A (GB)
Title: Improvements relating to semiconductor devices
Inventor: AUBUSSON RUSSELL CROSTON
IPC: H01L21/8222
Filed: 1968-08-10
Abstract: 1278414 Semi-conductor devices FERRANTI Ltd 6 Aug 1969 [10 Aug 1968] 38304/68 Heading H1K A multiple-base-contact transistor constituting an AND gate has common emitter and collector regions 28A, 22A respectively, and a single base region 26A having a number of interconnected parts 27A extending away from the emitter region 28A. Each part 27A of the base region 26A carries a separate base electrode 29A, and the portions, e.g. 31, of the base region 26A interconnecting the parts 27A are arranged to have relatively high resistances so that each base electrode 29A can function as an independent input terminal of the AND gate. In the embodiment shown this is achieved by diffusing the emitter region 28A through an aperture whose boundary in the vicinity of the interconnecting base portions 31 is coincident with that of the H-shaped aperture used for the base diffusion. In an alternative arrangement the electrode-carrying base parts (27E), Fig. 8 (not shown), are interconnected only by a portion (32E) of the base region which underlies the emitter region (28E), the other interconnecting portions of the base region having been removed by selectively etching recesses (81) in the surface (25E) of the device. Embodiments manufactured in a similar manner to that shown in Fig. 3 are disclosed having two, three and five electrode-carrying base parts respectively. Fig. 2 (not shown) illustrates a modification in which the relatively high resistance between the various base electrodes (29) is provided merely by situating each base electrode (29) at the end of a corresponding elongate part (27) of the base region remote from the emitter region (28). In all the embodiments the transistor is formed in an N-type As-doped Si epitaxial layer on a P- type B-doped Si substrate, an N+type buried layer being provided between the substrate and the epitaxial layer. Base and emitter diffusions are performed using B and P respectively through SiO 2  masks, and Al electrodes are subsequently applied. The transistor may be integrated with other devices.
Patent GB-1481067-A (GB)
Title: Method of and apparatus for handling wound balls of yarn
IPC: B65H54/56
Filed: 1974-09-02
Abstract: 1481067 Doffing wound balls of material G & W MASCHINEN AG 2 Sept 1974 [3 Sept 1973] 38308/74 Heading B1J [Also in Division B4] The invention relates to a method and apparatus for handling wound balls of yarn in a machine having parallel rotating spindles and wherein wound balls of yarn are ejected from said spindles. According to the invention the yarn on each ejected ball remains connected by a connecting portion with the yarn on the ball to be ejected next, and wherein the connecting portion of the yarn is directed to a predetermined locality and there cut, the resultant outside yarn end of the ejected ball being pulled inside the ejected ball. The apparatus includes, for each of the parallel rotating spindles, directing members for directing the portion of yarn connecting a first ejected ball to the next to be ejected ball towards a predetermined locality and to cut the yarn portion thereat, and means to pull the resultant outside yarn end of the ejected ball inside the ball.  In Fig. 2 a ball 10 of yarn has been wound on a rotating spindle 1. In Fig. 3 a yarn catching device in the form of a suction tube 27 has been moved upwardly to receive the ball 10 as it is pushed off the spindle 1 by the next package 11, the doffed package 10 sliding down the tube 27 to rest on a support-member 24. The tube 27 is then lowered to the setting shown in Fig. 4 and cutting means 40, 41 sever the yarn length 14, 15 extending between the packages 11, 10; the cut end 15 being sucked into the tube 27. Fig. 5 shows how the tube 27 is then fully retracted causing the yarn end 15 to be drawn into the wound ball 10. The ball 10 then drops off the support-member 24 and falls onto a conveyor 12. The cutting means may be in the form shown in Fig. 7 in which three cutting blades 40, 41, 42, each rock about an individual pivot 45 by means of links 48 coupled to a rotatable ring 47.
Patent GB-837346-A (GB)
Title: Method of fluorinating organic compounds containing other halogens
Inventor: DAHMLOS JOHANNES
IPC: C01B33/08
Filed: 1957-12-11
Abstract: Halogenated hydrocarbons in which the halogen is bound aliphatically and is other than fluorine are fluorinated by treatment with an alkali metal or alkaline earth metal fluosilicate at 250-300 DEG  C. in an autoclave.  Silicon tetrafluoride released in the reaction may be reconverted into fluosilicate and re-used.  Small quantities of SiF4 in the fluorinated products may be removed by washing with dilute caustic soda.
Patent GB-806992-A (GB)
Title: Improved method of packaging foodstuffs
IPC: A23B4/06
Filed: 1956-12-18
Abstract: In preserving foods, exemplified by fish fillets, by placing the food with water or with an aqueous solution of preservative such as a brine containing sugar or ascorbic acid in a bag of thermoplastic material, e.g. a bag of regenerated cellulose sheet coated internally with polythene, closing the bag by welding, and freezing the water to encase the food in ice, air is expelled, before completing the welding, by squeezing the bag from the base upwards until the water fills the bag.
Patent GB-1015273-A (GB)
Title: Finely-divided, gel-forming linear synthetic polyamide
IPC: C08J3/12
Filed: 1963-10-01
Abstract: A method of making a finely divided synthetic linear polyamide capable of forming a stable dispersion, comprises degrading a polyamide by mildly hydrolysing it with a dilute mineral acid at a temperature above 50 DEG  C. to obtain a water-insoluble, readily attritable material which is then mechanically attrited. Swelling agents may be added prior to or after attrition to produce stable dispersions.  Specified polyamides are those derived from diamines and dicarboxylic acids or from aminocarboxylic acids. Specified mineral acids are hydrochloric, sulphuric and nitric acid.  Specified swelling agents are dilute aqueous solutions of C1 to C6 aliphatic acids e.g. formic, acetic, dichloracetic and trichloracetic acid, aqueous, phenol, cresol or resorcinol, water, sugar solutions, polyols e.g. glycerol and alcohols e.g. ethanol and isopropanol. Shaped articles may be produced from the stable dispersions by extruding or casting the dispersion in the desired shape and then washing or immersing the article in water or a dilute alkaline solution.  Polyhexamethylene adipamide is the exemplified polyamide.
Patent GB-1283648-A (GB)
Title: Disc filter
IPC: B01D33/23
Filed: 1970-08-11
Abstract: 1283648 Rotary filters IMPROVED MACHINERY Inc 11 Aug 1970 [22 Aug 1969] 38657/ 70 Heading B1D A continuously rotating disc filter comprises a slurry containing bath 12, Fig. 2, a rotatable core assembly 14, having a series of longitudinally tapering liquid discharge passageways 26, Fig. 1, filter discs 30, each comprising sections 32 covered by wire gauze filter screens, and in fluid communication with the core passageways 26, and baffles 74 provided at each junction of the respective passageways to control the filtrate flow to exit. A valve assembly 70 connects the filter sections 32 to vacuum when submerged and to atmosphere when not. A rotating spray assembly 44, 40 and stationary spray assemblies 60, 58 and 64, 62 serve to wash and remove filter cake which is discharged via chute 68.
Patent GB-1113814-A (GB)
Title: Artificial limbs of expanded polyamides
Inventor: DACHS KARL
IPC: A61L27/18
Filed: 1965-09-10
Abstract: An artificial limb is made from an expanded polyamide Preferred polyamides are those made by the polymerization of lactams having five to thirteen ring members in the presence of activators such as substituted ureas or guanidines and catalysts such as alkali metal lactamates. The expanded materials preferably have a density of 250 to 400 gm./l. and may be made by introducing a lactam, e.g. e -caprolactam, and a foaming agent into a shaped mould, adding the activator and catalyst and heating, e.g. to 170 DEG  C.ALSO:Arm, leg or hand prostheses are made from an expanded polyamide.  In the Example, the thigh portion of a leg protheses is made by introducing a lactam and a foaming agent into a mould having the shape of the limb, adding the catalyst, an alkali metal lactamate, and an activator, a substituted urea.  The mould is held at 170 DEG C while polymerisation and foaming takes place.  The expanded polyamides preferably have a density of 250 to 400 gm/l. The product may be polished, milled, sawn or drilled.
Patent GB-831315-A (GB)
Title: Improvements relating to vacuum furnaces
IPC: C21C7/10
Filed: 1957-12-16
Abstract: 831,315. Degassing and refining metals and alloys. DORTMUND-HORDER HUTTENUNION A.G. Dec. 16, 1957 [Dec. 18, 1956; Jan. 2, 1957], No. 39057/57. Classes 72 and 82(1) [Also in Groups XI and XII] In a vacuum furnace 1 for a liquid charge especially of iron or steel having a hearth chamber heated electrically, e:g. by arc electrodes 6 and being lined with refractory brickwork 3 and surrounded by a metal air-tight casing 1 with a connection 5 to a vacuum pump leading to the hearth chamber, a single pipe 2 extends downwardly from the bottom of the furnace and opens into a ladle-like vessel 8. The furnace 1 and vessel 8 are adjustable in height; and after the furnace has been charged, e.g. by drawing melt up through the pipe 2 by applying a vacuum. to the connection 5, either the furnace 1 or the vessel 8 or both are moved up and down to ensure vigorous movement of the melt in the furnace. The pipe 2 has an inner lining of refractory brickwork and an outer refractory layer 2<SP>1</SP> and extends into the contents of the vessel 8, which may be filled through a channel 9 and may be tiltable or have an outlet plug. Additives are added to the melt from a container 7 with valves opening through the furnace arch. Thus ore or other oxygen carrier may be added to a ferrous alloy, e.g. ferrochromium containing carbon to refine the alloy and to produce stirring by the liberation of carbon monoxide. Carbon and oxygen may be added to iron and steel melts if required to improve the carbon content. The metal is degasified in the vacuum furnace, and ferro silicon free from hydrogen may be obtained. Decarburization may proceed simultaneously with degasification; or decarburization may be carried out in portions by relative vertical movement of the furnace and vessel whereby part of the melt may be raised into the furnace, decarburized and returned to the vessel, and the operations repeated until the ferrous alloy has the desired low carbon content. The melt may be removed in portions from the furnace by varying the partial vacuum therein.
Patent GB-1487375-A (GB)
Title: Apparatus for automatic banding of objects
IPC: B65B59/02
Filed: 1974-09-07
Abstract: 1487375 Positioning articles in banding apparatus; reciprocating pusher conveyers S MAE and M UMEZU 7 Sept 1974 39169/74 Headings B8C and B8A An arrangement for feeding articles and for positioning the articles in a banding apparatus at one or more successive locations comprises limit switches S5, S6, S7 which can halt article push rods 12 and initiate operation of the banding apparatus, and an arrangement for automatically positioning the switches S5, S6, S7 at spacings from one another which are equal to the spacings of the bands applied to the article if all of the switches S5, S6, S7 are rendered operative. The push rods 12 are reciprocated along guide rods 20 by a chain drive 30 and serve to feed articles delivered on to support plates 4 by a chain conveyer 1. The limit switches S5, S6, S7 which are actuable by a dog 13 carried by an arm 21 mounted for movement with the push rods 12, are mounted on arms 5, 6, 7 carried by base-plates 5a, 6a, 7a which are slidably mounted in a slide 10 and movable by respective chains 35, 36, 37. The chains 35, 36, 37 pass around sprockets 35a, 36a, 37a which have a gear ratio of 5 : 3 : 1 and are fixed to a common shaft 15. The chains 35, 36, 37 driven at 5/6, 3/6 and 1/6, respectively, the speed of the chain drive 30 for the push rods 12. In operation an article on the chain conveyer 1 contacts a switch S9 to stop the conveyer. A manual switch (PS1) Fig. 7A (not shown) is then depressed to restart the conveyer and cause the article to be deposited on the plates 4 where it actuates a switch S1 to energize electric motors M2 and M3 for driving the chains 35, 36, 37 and the chain 30, respectively. The object, fed by the push rods 12, next actuates a switch 53 adjacent the band binding apparatus to stop the motor M3 and hence the chains 35, 36, 37 for advancing the switches S5, S6, S7. The pusher rods 12 continue to move the article forwards until the dog 13 moving therewith actuates the switch S5 to stop the motor M3 and initiate a first banding operation at a position on the article spaced from its leading end by a distance of one sixth of the length of the article in the feed direction. The motor M3 is re-energized upon completion of this operation and the pusher rods 12 move the object forwards until the dog 13 actuates the switch S6 which stops the motor M3 and initiates a second banding operation midway along the length of the article. The dog 13 thereafter similarly actuates the switch S7 for a third banding operation at a position in the article spaced from its leading end by a distance of five sixths the length of the article. The switch S6 or the switches S5 and S7 can be rendered inoperative so that only two bands or one band, respectively, are put around the article at locations or a location determined by the operative switches or switch.
Patent GB-1217593-A (GB)
Title: Wholly insulated signal connector
Inventor: CHAIMOWICZ JEAN-CLAUDE ADAM
IPC: H04B10/80
Filed: 1968-08-16
Abstract: 1,217,593. Electroluminescence. MINING & CHEMICAL PRODUCTS Ltd. 13 Aug., 1969 [16 Aug., 1968], No. 39257/68. Heading C4S. [Also in Division G1] A signal coupling device comprises a socket 1 and co-operating plug 2, one member including a lens 3 and a modulable optoelectronic radiation source (e.g. a GaAs infra-red source) and the other member includes a second lens 4 and an optoelectronic photosensitive receiver device (e.g. Si photo-electric receiver). Both source and receiver are preferably positioned in the focal planes of their associated lenses. Multi-channel coupling using more than one pair of lenses (e.g. six pairs) may be employed (Fig. 2, not shown), a locating bug (8) being included. The housings may be of a plastics material. Applications to surgery or hospital treatment cases is exemplified where a patient must be insulated from high voltage equipment. Also the above connector may connect a T.V. receiver to a pair of earphones.
Patent GB-338777-A (GB)
Title: Improvements in variable-speed epicyclic gearing
IPC: F16H29/20
Filed: 1929-12-23
Abstract: 338,777. Laille, R. J. Dec. 22, 1928, [Convention date]. Variable-speed epicyclic gearing comprises planet-gears c carried by a frame b upon a driving- shaft a and meshing with a sun gear e fast on a driven shaft d. The speed at which the planets c turn on their axes is varied by varying the amplitude of reciprocation of racks g which are carried by the frame b and mesh with pinions # connected by ratchets to the planets c. The racks g have ball ends seated in abutment swash-rings h which, turn loosely in non-rotary plates j on trunnions k in a fixed drum i. The speed of shaft d is thus varied by angular displacement of plates j. In a modification, the racks are replaced by helically-grooved rods passing axially through the planet gears.
Patent GB-1011531-A (GB)
Title: Oxy-propane burner
Inventor: SMITH LEONARD BENJAMIN
IPC: F23D14/34
Filed: 1960-11-18
Abstract: 1,011,531. Burners. BRITISH OXYGEN CO. Ltd. Feb. 16, 1962 [Nov. 18, 1960]. No. 39770/60. Heading F4T. An oxy-propane burner comprises two lines of discharge orifices formed by an inner metal plate 12 having parallel grooves 20 on each of two faces, which co-operate with ungrooved faces of metal blocks 10, 11 of the burner body. The blocks 10, 11 and plate 12 are bolted together. The grooves in the plate 12 are of rectangular section and open at their lower ends into an aperture 21 in the inner plate 12. A gas mixture supply conduit 15 is connected to a main inlet passage 16 formed in the block 10 and opens into a transverse passage 17 which has auxiliary-passages 18 extending at right angles therefrom and leading into a manifold slot 19 adapted to register with the aperture 21. A further line of discharge orifices may be formed by having a second inner plate with one face grooved and its opposite face ungrooved and co-operating with one grooved face of the first inner plate 12. The lines of orifices may be straight, curved or in ring form. The burner body may be water cooled and carry a spray for water quenching heated work.
Patent GB-1269343-A (GB)
Title: Production of ceramic products
IPC: C04B18/14
Filed: 1969-08-08
Abstract: 1,269,343. Wollastonite refractories. RHEINISCHE KALKSTEINWERKE G.m.b.H. 8 Aug., 1969 [17 Aug., 1968; 12 Dec., 1968], No. 39797/69. Headings C1J and C1K. Ceramics are obtained by moulding and baking a ground glassy slag at least 80% consisting of CaO and SiO 2  in a molar ratio of 1 to 1. The slag is preferably obtained from phosphorus production and can be purified by removing the fraction below 0À2 mm. after water quenching. The coarse fraction can be reheated to above 700 C. It can be mixed with clay, kaolin, quartz and feldspar.
Patent GB-1143159-A (GB)
Title: Transfer conveyor system
IPC: B65G47/54
Filed: 1967-09-01
Abstract: 1,143,159. Endless conveyers; rollerways. BROOKHIRST IGRANIC Ltd. 1 Sept., 1967 [27 Sept., 1966], No. 40029/67. Heading B8A. Bundles of newspapers (not shown) may be conveyed from either of endless conveyers 2, 4, to an endless conveyer 8 (with priority given to bundles on the conveyer 2), or they may be conveyed in the opposite direction from the conveyer 8 to either of the conveyers 2, 4. In the latter ease, one of a series of five pushbuttons (ST), (T), (1-1), (1-2), (2-1), (Fig. 6a, not shown), may be pressed on a panel 6d (Figs. 1 and 2) to result respectively in transfer to conveyers 2 only, to conveyer 4 only. alternate transfer to conveyers 2 and 4, one transfer to conveyer 4 alternating with 2 successive transfers to conveyer 2, and one transfer to conveyer 2 alternately with two successive transfers to conveyer 4. In the former case when a bundle on conveyer 2 obstructs a photoelectric gate CPR, members 54a are caused to engage and hold any article detected on the conveyer 4 by a photo-electric gate PPR. A timer and relay circuitry (Fig. 5, not shown) hold the members 54a in bundle engaging position until an article has sufficiently cleared the junction. When a bundle is released by the members 54a the relay circuitry causes a pair of rollers 36 mounted on a frame 38 (Fig. 3) to be raised by the action of a fluid jack 44. After a predetermined time interval, further similar pairs 34, 32, and 30, of rollers are successively raised (this prevents interference with the previous bundle (transferred from the conveyer 2). The rollers of the pairs 30, 36, are gapped as shown so as to enable the upper roller peripheries to rise above the conveyer chains 18. The rollers may be of polyurethane.
Patent GB-1256162-A (GB)
Title: Improvements in and relating to liquid products for intravenous administration
IPC: A61K9/00
Filed: 1969-08-12
Abstract: 1,256,162. Composition for intravenous feeding. B. BRAUN. 12 Aug., 1969 [16 Aug., 1968; 7 July, 1969], No. 40212/69. Heading A5B. A liquid product for intravenous administration, being a sterile preparation, comprises in an aqueous medium, in proportions suitable for a parenteral diet, lysine, methionine, phenylalanine, leucine, isoleucine, valine, tryptophane and threonine, together with a fat component suitable for intravenous feeding emulsified with an emulsifier suitable for intravenous feeding. The fat is suitably soya bean oil, emulsified with soya phosphatide. Carbohydrates such as sorbitol and xylitol may also be present.
Patent GB-1371202-A (GB)
Title: Liquid dispensing nozzles
IPC: B67D7/54
Filed: 1971-08-27
Abstract: 1371202 Dispensing liquids DOVER CORP 27 Aug 1971 [31 Aug 1970] 40335/71 Heading A4T [Also in Division F2] A gasoline dispensing nozzle has a delivery spout which sealingly engages the mouth of a tank filling tube when disposed therein and which incorporates a vapour recovery conduit. Excess vapour pressure causes closure of the flow control valve. The embodiment according to Figs. 1-9 (not shown) is identical with that disclosed in Specification 1371201. In the modification of Figs. 10 and 10A, spout 100 is rigidly secured to the main body of the dispensing nozzle and chamber 63 communicates permanently with the level sensing tube, check valve (93) thereby not being required. Sealing collar 45 accomodates tilting of the spout and abutment collar 111 acts to retain the spout in the filling tube. Main valve member (17) again seats in response to excess vapour pressure in recovery conduit 49 or attainment of a given level in the tank. (For Figure see next page)