baber/WOPTO huggingface dataset:
Patent GB-1005132-A (GB)
Title: Improvements in semiconductor materials
Inventor: SWEETT FRANCIS ARCHIBALD
IPC: H01C7/10
Filed: 1963-07-02
Abstract: 1,005,132. Semi-conducting ferric oxide. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 22, 1964 [July 2, 1963], No. 26281/63. Drawings to Specification. Heading H1K. P-type ferric oxide is prepared by doping ntype Fe 2 O 3  with 5 atom per cent of magnesium or divalent nickel or copper in oxide form. PN-Fe 2 0 3  is prepared by doping only part of an n-Fe 2 0 3  body with the above dopants. A non-linear resistor may be constructed by forming a ferric oxide body containing a large number of P-N junctions made according to the invention. The addition of the dopant oxide may be performed by (a) evaporating a mixture of Fe and the dopant metal on to a pellet of n-Fe 2 O 3  and subsequently oxidizing by firing in an oxidizing atmosphere; (b) evaporating the dopant metal on to a pellet of n-Fe 2 0 3  and subsequently oxidizing by firing in an oxidizing atmosphere; (c) contacting pellets, granules or beads of n-Fe 2 O 3  with a solution of a salt of the dopant metal and subsequently firing (the salt yielding the oxide on heating); (d) exposing one face of n-Fe = 03 to an MgO aerosol to give a thin uniform coating which is then diffused into the surface of the oxide by firing, e.g. at 1200‹ C. for 5 hours, and (e) mixing n- Fe 2 0 3  with the dopant metal oxide and firing, e.g. at 1300‹ C. A suitable n-Fe 2 O 3  is that doped with TiO 2 .
Patent GB-722712-A (GB)
Title: Improvements relating to electrical driving equipment for textile winding machines
Inventor: MILNE JOHN CHARLES
IPC: D02H3/00
Filed: 1952-11-07
Abstract: 722,712. Automatic tension control systems. ELECTRIC CONSTRUCTION CO., Ltd. Nov. 7, 1952 [Nov. 9, 1951], No. 26308/51. Drawings to Specification. Class 38 (4). [Also in Groups XXXVII and XL (c)] In a constant-armature-current type automatic tension control for textile threads being wound at variable speed between pinch-rolls and a take-up bobbin, the pinch-roll and bobbin motor armatures are connected in parallel so that the closed armature circuit tends to damp out relative speed variations. The bobbin motor field control (to maintain constant motor current) may be effected by supplying it through (i) a controlled saturable reactor (progressive control), Fig. 7 (not shown), or (ii) a motor-driven rheostat controlled by a valve relay circuit (see Group XL (c)) providing intermittent correction, e.g. one second every twenty seconds to prevent overshoot and hunting, Fig. 6 (not shown). The common armature supply voltage which determines the thread speed may be obtained from an induction regulator through a mercury-vapour-rectifier, Fig. 4 (not shown), or metal rectifiers, Fig. 5 (not shown). This tension control system may be associated with a humidity control system as described in Specification 664,435, wherein the induction regulator is controlled by humidity of the thread to vary its speed through a drying chamber.
Patent GB-353748-A (GB)
Title: Electric connection particularly applicable for taking off current
IPC: H01C1/148
Filed: 1930-09-03
Abstract: 353,748. Couplings. SOC. ANON. LE CARBONE, 37, Rue de Paris, Gennevilliers, Seine, France. Sept. 3, 1930, No. 26325. Convention date, Nov. 12, 1929. [Class 38 (i).] A terminal cap a to be forced over the end of a rod f such as a resistance has an undercut groove e in the walls a of the cap near its base b to allow the wall a to yield elastically. A coating of copper &c. g may be applied to the end of the rod f, which may be of circular, polygonal, or other section.
Patent GB-613035-A (GB)
Title: Improvements in or relating to desks
IPC: A47B39/02
Filed: 1945-10-09
Abstract: 613,035. School &c., desks. SEBEL, H. Oct. 9, 1945. No. 26342. [Class 52 (iii)] A combined desk and seat particularly for younger children has the desk surface 8 reversible for use as a blackboard, and the supporting frame comprises two tubular U-shaped members 1, 2 spaced by a footrest 9 and supporting the desk 8 by rotary clamps 18. The seat 10 is carried by short legs 5 of the frame and may be slidable. A peripheral groove 17 for chalks is pressed in the blackboard side of the desk and forms a retaining ridge for books, &c., on the other side. The desk is mounted off centre so that the blackboard side comes closer to the user. The parts are detachable for packing.
Patent GB-1298031-A (GB)
Title: Apparatus and process for producing metal powder
IPC: B22F9/08
Filed: 1970-06-01
Abstract: 1298031 Producing metal powder REPUBLIC STEEL CORP 1 June 1970 [18 June 1969] 26408/70 Heading C7X Metal powder is produced by directing a flowing stream of molten metal through a zone upstream of an atomizing zone 16a and into said atomizing zone 16a, there atomizing the molten metal (e.g. using gas nozzles 20) to form oxide-free particles, agglomerating and cooling said particles by injecting solid particles of the same metal into at least one of said zones and/or by injecting a flow of an inert gas substantially transverse or reverse to the flow of atomized metal particles downstream from said atomizing zone, and collecting the resulting particles. Recycled fines from the process may be injected into the molten particle stream from hoppers 38 by the aid of impellers 40, and/or N 2  gas may be injected via valve 36 and nozzles 22 as shown. In other embodiments, all of which use inert gas atomization (1) inert gas and metal fines entrained therein are injected transverse to the metal flow after atomization Fig. 5 (not shown), (2) metal fines are injected before atomization Fig. 6, (not shown), (3) fines are injected both before and after atomization Fig. 7, (not shown) and (4) N 2  gas is blown countercurrently to the atomized metal Fig. 8, (not shown).
Patent GB-791433-A (GB)
Title: Improvements in or relating to processes for cooling and moistening dextrin and roasted flours
IPC: C08B30/18
Filed: 1954-09-14
Abstract: 791,433. Conditioning roasted flours. WULKAN, E. Aug. 29, 1955 [Sept. 14, 1954], No. 26568/54. Class 58. [Also in Group V] Hot dextrin or roasted flour is cooled rapidly to room temperature to avoid deterioration resulting from overheating, by entraining the dextrin or the like in a stream of cold air which serves both as conveying and cooling means therefor. The product is then moistened as desired by the action of another stream of air charged with water or water vapour or a chemical solution, and by means of which further conveyance within the apparatus is effected. The apparatus may comprise a chamber 3 into which dextrin or roasted flour is fed from a hopper 1, and a conduit 4 along which the dextrin or the like, together with cold air from an inlet 8, is drawn by a fan 5. Elements 6 collect the product which falls into a container 7 and may be recirculated via the hopper 1 if further cooling is necessary, while air from the fan 5 may also be recirculated, subject to regulating means 12, by means of a conduit 11. Moistening is effected by a device 9 which charges the air with water or an aqueous solution of an inorganic or organic chemical, e.g., borax, aluminium sulphate, hydrogen peroxide, urea, triethanolamine, formaldehyde, supplied by a pipe 10. Instead of air, other gases, e.g., carbon dioxide, nitrogen or ammonia may be used.
Patent GB-616405-A (GB)
Title: Improvements in centrifugal separator
IPC: B04B1/08
Filed: 1946-09-04
Abstract: 616,405. Centrifugal pumps; stuffing-boxes. AKTIEBOLAGET SEPARATOR. Sept. 4, 1946, No. 26596. Convention date, Sept. 15, 1945. [Classes 110 (i) and 122 (v)] [Also in Group II] In a centrifugal separator, the lighter liquid passes down a channel 6, in the bowl spindle, to a centrifugal pump 10. Sealing fluid enters a space between diaphragms 24, 26. Rubbing rings 21, on the pump rotor, and 23 on a diaphragm 24 prevent leakage from the pump casing to a bearing 3. Guide vanes 16 convert the kinetic energy of the liquid entering the pump casing into pressure energy to counteract leakage through a labyrinth 20 into the casing. Fig. 4 shows means to seal the paring chamber 13. Discs 46, 59 are contained within chambers 60, 61. Sealing liquid enters through a channel 64 and is thrown towards the periphery of the disc 59 by vanes on the cover 63 and flows over the inner edge of the bottom 62 down into the chamber 60-which is similar to chamber 61. The space between the discs 46, 59 communicates with the atmosphere.
Patent GB-425821-A (GB)
Title: Improvements in and relating to vehicle headlamps
IPC: F21V11/00
Filed: 1934-09-17
Abstract: 425,821. Vehicle lamps. LEWIS, W., 14, Fairfield Avenue, Poulton-le-Fylde, near Blackpool, and PARKINSON, R. W., 350, Lytham Road, Blackpool. Sept. 17, 1934, No. 26646. [Class 75 (iv)] Lantern screens.-In a vehicle lamp fitted at the front with a screen of horizontal louvres, the screen is formed from a single ring 1 secured to the edge of the reflector and having slits 2 in its periphery through which a strip 3 in one or more lengths is threaded and the ends secured as by soldering, each length of strip passing in one direction through one slit and through the next slit in the reverse direction so as to form a plurality of horizontal louvres. Tensioning means for the strip may be provided by means of a bar clamping across a diameter of the ring.
Patent GB-386607-A (GB)
Title: Latch needle for picking up loops
IPC: D05B85/14
Filed: 1932-09-26
Abstract: 386,607. Hand sewing-tools. FIEDLER, C., 23A, Margaretenstrasse, Chemnitz, Germany. Sept. 26, 1932, No. 26690. [Class 112.] A latch needle for repairing ladders in knitted goods has a spring 4 for biasing the latch, located in a slot 3 in the needle and anchored at the end remote from the latch. The spring flexes at 7 between the point of contact 6 with the latch and the anchored point 5 so that the whole length of the spring is effective in opening the latch when released from the picked-up loop. A cross-pin 8 prevents the spring from protruding into the path of the picked-up loops.
Patent GB-1352071-A (GB)
Title: Paraffin hydroisomerisation
IPC: C07C5/22
Filed: 1971-04-19
Abstract: 1352071 Hydroisomerizing paraffins SUN OIL CO 19 April 1971 [15 April 1970 (2)] 26749/71 Heading C5E A paraffin feed which contains at least 6 p.p.m. sulphur is isomerized in the presence of H 2  and an aluminosilicate catalyst having a molar ratio SiO 2 /Al 2 O 3  in the range 15 : 1 to 100 : 1. The feed may be a straight run gasoline containing 18-221 p.p.m. sulphur and the catalyst an acid-leached mordenite. Suitable conditions are 290-340‹ C., 1-10 LHSV and a H 2 /hydrocarbon ratio of 2À5 to 3À7.
Patent GB-448214-A (GB)
Title: A process for the formation of rough surfaces on rubber goods
IPC: B29C37/00
Filed: 1935-09-30
Abstract: A process for the formation of rough surfaces on rubber goods, e.g. gloves, comprises applying to the surface of the unvulcanized rubber goods a liquid mixture of natural and/or synthetic caoutchouc and/or factis, a resin, mineral pitch, oil of turpentine and other readily volatile hydrocarbons, removing the volatile constituents by evaporation, and vulcanizing the goods. The volatile hydrocarbons are preferably such as will dissolved the other constituents and may be for example benzine, benzole or volatile coal tar oils.  The degree of roughness produced may be varied by varying the concentration of the solution or dispersion used for coating the surface.
Patent GB-462558-A (GB)
Title: Improvements in the recovery of isobutylene from hydrocarbon mixtures containing the same
IPC: C07C7/10
Filed: 1935-09-30
Abstract: In the separation of isobutylene from liquid hydrocarbon mixtures by means of acids such as sulphuric or phosphoric acid, the liquid hydrocarbon is forced through porous materials such as filter stones, porous clay or porous glass plates into the acid, or the acid is introduced in a similar manner into the hydrocarbon mixture.  The isobutylene is recovered from the acid liquor in known manner.  In an example, a liquefied butane fraction containing isobutylene is forced through a clay plate at the bottom of a column containing 70 per cent sulphuric acid about one metre deep.  Various acid strengths temperatures and pressures are mentioned.
Patent GB-919834-A (GB)
Title: An improved method of modifying proteins
IPC: D06M13/152
Filed: 1959-08-07
Abstract: Protein products are obtained by treating a pyrocatechine having at least two atoms of halogen in the molecule, and thereafter oxidizprotein with a solution of a halogen-substituted ing the halogen-substituted pyrocatechine to a halogen-substituted o-quinone. The protein may be treated at a temperature of 20 to 70 DEG C. with 2 to 10% halogen-substituted pyrocatechine based on the weight of the protein.  An oxidizing agent may be used selected from potassium bichromate, persulphate or permanganate, hydrogen peroxide, and ferric chloride, in such a quantity as quantitatively to transform the chlorinated pyrocatechine into o-chloroquinone.  Proteins specified are keratin and collagen, which may take the form of a loose wool material such as papermaker's felt, yarn, or hide.
Patent GB-363383-A (GB)
Title: An improved method of and apparatus for manufacturing knitted goods
IPC: D04B1/06
Filed: 1930-09-10
Abstract: 363,383. Knitting. NUBER, O., 37, Uhlandstrasse, Reutlingen, W³rtemberg, Germany. Sept. 10, 1930, No. 27057. [Class 74 (ii).] Ladder-proof knitted fabrics are produced by drawing the sinker bars of ordinary knitted loops into loops a which when pulled through the original loops form a row of knots. Since each loop is acted on in the same way, the fabrics so made are of uniform appearance. Each loop so formed may be supported by a loop b of usual formation. Two-part needles n, d, the parts d of which are received in grooves of the parts n, are used in conjunction with transfer points s.
Patent GB-664027-A (GB)
Title: Improvements relating to spraying devices
IPC: B01F3/04
Filed: 1949-10-21
Abstract: 664,027. Spray-producers. ANDREW MACHINE CONSTRUCTION CO., Ltd., and HOLT, S. Sept. 29, 1950 [Oct. 21, 1949], No. 27061/49. Class 69 (iii). A pump b driven by an electric motor c delivers liquid from a container a to a receiver d, and to outward and return pipes f and i respectively, across which a number of spray nozzles j are connected. Each nozzle has two interconnected valves m and o, simultaneously operated through links q and a rod r, so that in one position the valve m is opened and o closed to connect the nozzle to the outward pipe f, and in the other position the valve m is closed and o opened to connect the nozzle to the return line i. When used with textile machinery the rods r are linked with the machine controls so that they are operated when the machine is started or stopped.
Patent GB-196864-A (GB)
Title: Improvements in or relating to means for detachably securing cuffs to shirts and thelike
IPC: A41B7/10
Filed: 1922-10-07
Abstract: 196,864. Denny, E. Oct. 7, 1922. Shirt cuffs; cuff adjusters.-For detachably connecting cuffs to shirts and the like, the wristband C is provided with a stitched slot or pocket and with pairs of buttonholes E, F corresponding to button holes G, H in the cuff. A strip I of celluloid &c. is threaded through the pairs of buttonholes and may be further held in position by press studs or solitaires. The ends of the cuff may be attached to the sleeve by buttons F', or by solitaires or press studs. The detachable cuff may be folded to present either face outwardly and button holes B<1> are provided as ordinarily.
Patent GB-344839-A (GB)
Title: Improvements in process and machines for making tenons
IPC: B27F1/04
Filed: 1929-09-06
Abstract: 344,839. Cutting tenons. LVOFF, L., 15, Rue Luther, Brussels. Sept. 6, 1929, No. 27160. Convention date, Oct. 24, 1928. Void [Published under Sect. 91 of the Acts]. [Class 145 (i).] Tenons are cut by a single tool 3 by traversing the wood below the cutter, then raising the work table on guides 4 and traversing the work back over the cutter. The same effect may be obtained by shifting the cutter vertically between the two traverses, or by moving a motor-driven cutter above and below the wood alternately.
Patent GB-1165775-A (GB)
Title: Animal Feed Supplements
Inventor: TOWLERTON RICHARD GEORGE
IPC: A01K5/015
Filed: 1967-04-12
Abstract: 1,165,775. Lick-holders. BOOTS PURE DRUG CO. Ltd. 4 April, 1968 [12 April, 1967; 13 June, 1967] ,  Nos. 16851/67 and 27290/67. Headings AIM and A2B. A device for administering iron to piglets comprises an iron lick block rotatably mounted with limited axial movement on a substantially rigid axle which is attached to an arm pivotally connected to a support. The block may be formed about a hollow axial spindle, the interior surface of which carries frictional elements, for example ridges, to restrict the rotation of the block about the axis. The block may be as set forth in Specification 1,165,776, comprising hard and soft portions. Fig. 1 shows a device according to the invention, the block 1 and spindle 2 rotating about axle 3, and secured thereto by cap 13, the arm 4 pivoting parallel to the axle on plate 9, bend 11 preventing the block from pivoting too far downwards, and finger 12 preventing the block from pivoting too far upwards.
Patent GB-733803-A (GB)
Title: Improvements in apparatus for connecting webs of sheet material
Inventor: ARMELIN EDOUARD ROGER
IPC: B65H19/18
Filed: 1952-10-30
Abstract: 733,803. Feeding webs. CHAMBON, Ltd. Oct. 7, 1953 [Oct. 30, 1952], No. 27351/52. Class 100 (1). An apparatus for splicing the leading end of an expiring web roll to a replacement roll comprises a device for arresting the feed of the expiring web, means for supporting the two webs in overlapping relation, a reciprocable guillotine for transversely cutting the overlapping webs, a pair of presser pads, each adapted for holding a strip of adhesive material and applying it along each side of the cut edges of the web, retracting means for withdrawing the severed waste portion of the expiring web, and driving means for operating the feed-arresting device, guillotine, and presser pads in succession. As shown, web rolls 6 and 7, braked by brakes 8 and 9, supply webs 6a and 7a. When the roll 7 is near expiration further feed, by rollers 63, 64 to a trough 61 housing a loop of web 7a, is arrested by rotation of a crank handle 42. The rollers 63, 64 feed the web faster than it is fed into a machine, thus accumulating the loop of web. The crank handle 42 rotates a cam 43, Fig. 3, not shown, which actuates, through a lever 68, Fig. 3, not shown, a rod 71 attached to a lever 72 which separates the rollers 63, 64. Further rotation of the cam 43 actuates, through rods 44, 46 and 50, Fig. 2, not shown, knives 25 and 26 carried on pivoted arms 31 and 28, such that the expiring web is severed. The replacement web 6a is impaled on pins carried on a bell-crank lever 54 while the severed end of the web 7a is impaled on pins carried on a bell-crank lever 55; but is released therefrom on downward swinging of the levers 54 and 55 caused by a spring (not shown). Further rotation of the cam 43 causes, through arms 36, 39, two presser pads 33 and 34 to swing together, such that adhesive strips, clamped to the pads, are pressed against the overlapping webs 7a and 6a. The cut end of the web 7a is withdrawn from the cutting position by a spring-pressed tension roller 18. The adhesive strips may be normally tacky, or rendered tacky by heat or moisture. Further rotation of the handle 42 causes the rollers 63, 64 to commence feeding the web 6a to the machine.
Patent GB-507464-A (GB)
Title: Improvements relating to tubes, particularly for use in exhaust silencers
IPC: F01N1/08
Filed: 1938-09-20
Abstract: 507,464. Exhaust - silencers. CHESWICK, G., and WRIGHT, R. N. Sept. 20, 1938, No. 27368. 7 (ii)] A tube for exhaust-silencers has louvres 21 formed in it by a pressing operation, each louvre being inclined to the axis of the tube, each opening being a narrow slit of the order of twenty-five thousandths of an inch across. The louvres are arranged in one or more columns, all the louvres forming a broken single- or multi-start helix. The silencer comprises three such tubes in a casing 13, baffles 22 being arranged so that the gases traverse.-the casing three times. The louvres are inwardly directed. Specification 507,463 is referred to.
Patent GB-409391-A (GB)
Title: Improvements in or relating to valves for controlling the flow of fluid mediums
IPC: F16K31/363
Filed: 1932-10-03
Abstract: 409,391. Valves. DIAMOND, W. J., 24, Syr Davids Avenue, Canton, Cardiff. Oct. 3, 1932, No. 27392. [Class 135.] A piston actuated change-over valve for use in a feed water heater installation is provided with adjustable spring loading means. The valve member b has a pair of opposed faces adapted to seat alternately on one of a pair of seats c, d leading to outlets e and f respectively and the spindle m is fitted with a piston n subject to the pressure of the steam supply to a main engine. An upwardly extending spindle serves as an indicator and is encircled by the loading spring h arranged between the valve member and an adjustable abutment j. When the main stop valve is open pressure acting on the piston raises the valve member into contact with the seat c, so that exhaust steam from one or more auxiliary engines entering at g is directed through the connection f to the feedwater heater. When the stop valve is closed the valve b falls to direct the exhaust steam to atmosphere or to a condenser through the outlet e. According to the Provisional Specification the valve may be used in connection with other applications.
Patent GB-965365-A (GB)
Title: Production of esters
Inventor: BAXTER RICHARD ALLEN
IPC: C07C69/712
Filed: 1962-07-17
Abstract: Esters are produced by the reaction of maleic anhydride or a homologue or substitution product thereof with an aromatic hydroxy compound.  The esters may be aryl esters of acrylic acids or aryl b -aryloxypropionates. Specified aromatic hydroxy compounds are phenol, cresols, xylenols, dihydroxybenzenes, naphthols and hydroxypyridines and substitution products of any of these containing a halogen atom or an alkoxy or a nitro group. Specified maleic anhydride derivatives are citraconic anhydride, a , b -dimethylmaleic anhydride and chloromaleic anhydride. The alkoxyphenyl acrylates and alkoxyphenyl b -(alkoxy-phenoxy) propionates obtainable by the process are stated to be new compounds and are claimed as such. Specified compounds of this type are p-methoxyphenyl acrylate and p-methoxyplenyl b -(p-methoxyphenoxy) propionate (from p-methoxyphenol and maleic anhydride), m-ethoxyphenyl acrylate and m-ethoxyphenyl b -(m-ethoxyphenoxy) propionate (from m-ethoxyphenol and maleic anhydride) and o-isobutoxyphenyl acrylate and o-isobutoxyphenyl b -(o-isobutoxyphenoxy) propionate (from o-isobutoxyphenol and maleic anhydride).  The reaction may be effected at a temperature above 50 DEG C., e.g. at 150-300 DEG C., preferably in the presence of a proton-acceptor, e.g. pyridine, the picolines, quinoline, diethylaniline, an alkali phenolate or an alkali-metal alkoxide. Examples are given in which (1) phenol and maleic anhydride yield phenyl acrylate and phenyl b -phenoxypropionate, which are separated by fractional distillation, and (2) p-methoxyphenol and maleic anhydride similarly yield p-methoxyphenyl acrylate and p-methoxyphenyl b -(p-methoxyphenoxy) propionate.