baber/WOPTO huggingface dataset:
Patent GB-1440234-A (GB)
Title: Method of producing a semiconductor component
IPC: H01L29/74
Filed: 1973-06-22
Abstract: 1440234 Semi-conductor devices LICENTIA PATENT-VERWALTUNGS-GmbH 22 June 1973 [23 June 1972] 29892/73 Heading H1K Gallium and phosphorus are simultaneously diffused into a semi-conductor body carrying a masking layer 4, which is permeable to one of the dopants (Ga, for a SiO 2  layer) but which masks against the other. For a second diffusion step an aperture is opened in the layer and Ga and P are again diffused together. As shown an n type Si wafer 2 is coated with SiO 2  4, 5 and is subjected to simultaneous diffusion with Ga and P. Ga diffuses through the layers 4, 5 to form p type zones 3, 6 but beneath the windows in the mask P diffusion predominates to form n<SP>+</SP> zones 1. In the second step the n<SP>+</SP> cathode region 7 is formed. In the manufacture of an integrated thyristor/diode structure Au may also be diffused into the semi-conductor body.
Patent GB-501910-A (GB)
Title: Improvements in or relating to the covers of cycle and like saddles
IPC: B62J1/00
Filed: 1938-10-15
Abstract: 501,910. Saddles. FRANKE, C. T., and FRANKE, H. Oct. 15, 1938,. No. 29915. Convention date, Aug. 16. [Class 136 (iii)] In a saddle top or cover of the type formed of rubber or rubber composition with a fabric reinforcement vulcanized therein, separate fabric strips are vulcanized in' the rubber at the narrowest and widest parts of the cover respectively, so as to leave a central part free from fabric and thus obtain elasticity along the central longitudinal zone of the cover. In the form shown in Fig. 1, the cover is reinforced at the cantle and peak ends respectively by fabric strips a, b vulcanized into the rubber. In order to prevent tearing of the rubber, the part between the fabric strips is reinforced by one or more rubber beadings c moulded therein and preferably tapered towards the , ends. The fabric insertions a, b may be formed with one or more extensions or tongues d, Fig. 6 which may intermesh as shown, several reinforcing beads c being provided.
Patent GB-648080-A (GB)
Title: Improvements in or relating to fasteners for power transmission belting
IPC: F16G3/00
Filed: 1948-11-18
Abstract: 648,080. Belt fastenings. WILSON, A. Nov. 18, 1948, No. 29962. [Class 80(i)] A fastener for a power transmission belt comprises a curved metal plate a, which may be of malleable cast iron, having formed thereon two double rows of teeth b which are hammered into the abutting ends of the belt. The teeth in each double row are of staggered formation and have opposed edges b' normal to the plate and outer edges b<SP>2</SP>, which may be curved, inclined to the plate. The inclined edges serve to move the teeth b to grip the belt material, which may be leather, and to force together the abutting edges of the belt. The ends a<SP>4</SP>, a<SP>5</SP> of the plate a may be bevelled if the belt is to be shifted by a guide fork.
Patent GB-679028-A (GB)
Title: Method of preparing 1-phenyl-2-amino-propane-1-3-diol and its n-acyl and n-o-diacyl-derivatives from the esters of alphaamino-beta-hydroxy-phenylpropionic acid (phenylserine) and its n-acyl and n-o-diacyl-derivatives
Filed: 1949-11-23
Abstract: 1-Phenyl-2-aminopropane-1 : 3-diol and its N-acyl and N : O-diacyl derivatives in threo-form are manufactured by reducing esters of threo-b -phenylserine or N-acyl or N : O-diacyl derivatives thereof either (a) by means of lithium aluminium hydride in anhydrous ether or (b) by means of hydrogen at 50 DEG  C. and 150 atmospheres pressure in the presence of a solvent and a nickel catalyst.  The products may be isolated in case (a) by decomposing the excess of lithium aluminium hydride, filtering, extracting the residue with alcohol and recovering the product from the ethereal solution and the alcoholic extract, and in case (b) by filtering off the catalyst, distilling the solvent and extracting the residue with water.  In examples: (1) the ethyl ester of threo-a -amino - b  - hydroxy - b  - phenylpropionic acid is boiled with lithium aluminium hydride, the product is treated with water and filtered in vacuo, the residue is extracted with alcohol, the combined ether and alcohol solutions are concentrated and ethyl acetate is added, the solution is filtered, the filtrate evaporated to dryness and the residue purified by treatment with a small quantity of ether; (2) the starting material of (1) is replaced by its N : O-diacetyl derivative; (3) the starting material of (1) is reduced by method (b), using alcohol as solvent. Specification 671,698 is referred to.
Patent GB-1476358-A (GB)
Title: Herbicide
IPC: A01N37/02
Filed: 1974-07-08
Abstract: 1476358 Mixed herbicides BASF AG 8 July 1974 [9 July 1973] 30132/74 Heading ASE A herbicidal composition comprises one or more pyridazones of formula in admixture in a weight ratio of 7:1 to 1:7 with one or more carbamates of formula and/or one or more carboxylic acids, esters or salts or benzoamido-oxy substituted fatty acids of formula  and/or one or more pyrazole acetamides of formula  and/or one or more pyrazolium sulfates of formula  and/or one or more phenyl sulphonyl derivatives of formula and/or with certain pyridazones, the benzofuranyl methane sulfonate of formula wherein X, Y, Z, R, R<SP>1</SP> and R<SP>2</SP> represent a variety of specified substituents. The composition also may comprise other listed herbicides, and may be used as a selective weed-killer in crops or as a total herbicide. Specifications 1476360 and 1476359 are referred to.
Patent GB-668733-A (GB)
Title: Improvements in or relating to an electronic counter
IPC: H03K23/82
Filed: 1948-11-20
Abstract: 668,733. Electronic counting apparatus. BRITISH TABULATING MACHINE CO., Ltd. Nov. 20, 1948 [Nov. 21, 1947], No. 30231/48. Class 106 (i). In a quinary or bi-quinary electronic counter comprising three or four trigger circuits connected in a series chain and each having two stable conditions to which it is switched alternately by operating voltage impulses, input operating impulses being sent to the first trigger circuit and an operating impulse being sent to the higher trigger circuits upon each second switching of the immediately preceding circuit, the impulse sent from the second circuit switches the third circuit from only one stable condition, the third circuit being switched back from the other stable condition by an input impulse which is prevented from switching the first circuit by a capacitative, impulse feed-back, coupling. As shown, the trigger circuits are generally similar to those described in Specification 609,502. The input terminal 35 is connected to the control grids of valves V1, V2 (within the same envelope) of the first trigger circuit I and of valve V6 of circuit III. The control grid of the other valve V5 of circuit III is connected through lead 16 to the output of circuit II. Consequently, after four negative input impulses have been received from the initial state (valves VI, V3, V5, V7 conducting) attained by opening reset switch SW1, circuit III will be switched so that valve V6 is conducting. The next (fifth) input impulse will be applied to the grid of valve V6 to cut off this valve and return circuit III to the initial state with valve V5 conducting. This will cause positive and negative impulses respectively to be fed back through tapped resistances R1, R4 and capacitors C10, C9 to the grids of valves V1, V2 thus preventing the input impulse from switching circuit I from its initial state (VI conducting). The tappings on resistors R1, R4 are so chosen that the feedback during the other switching of circuit III is not sufficient to affect circuit I. Upon the return of circuit III to the initial state impulses are sent to the " five-count " output terminals 37 and to circuit IV. The next five input impulses cause the repetition of the previous operations, the tenth impulse returning circuit IV to the initial state upon which an impulse appears at the " ten-count terminals 38.
Patent GB-243182-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1924-12-16
Abstract: 243,182. Brooker, E. A. Dec. 16, 1924. Tobacco pipes. - A tobacco pipe is provided within the bore of the stem and mouth-piece with a hollow body longitudinally divided either constructionally or by means fitted therein, or provided with longitudinally extending parts, in each case for the purpose of retaining a compact removable absorbent body in a part only of the bore of the stem and mouth-piece so that the pipe has a clear smoke passage from the bowl to the mouth-piece end. The hollow body may be in the form of a tube divided longitudinally by a perforated plate having lateral projections at one end engaging with slits at one end of the tube; or a body of semi-circular cross-section may have longitudinal internally-projecting portions g to hold in position the absorbent body e, for example, a folded pipe cleaner, lateral movement of the hollow body within the bore being prevented by tubular parts h, and rotational movement by a projection f engaging a slit or recess c' at theend of the flock x. In a further modification the hollow body is cons,tructed to provide two tubular members disposed side by side, longitudinal openings being provided at the sides of the members to allow for the passage of moisture to the enclosed absorbent body.
Patent GB-787417-A (GB)
Title: Improvements in slip-finish flock coated rubber article
IPC: A41D19/00
Filed: 1955-10-24
Abstract: A rubber article is provided with a flocked surface by applying a coating containing a mixture of rubber latex and flock to its surface, drying and vulcanizing the coating, and treating the flocked surface with a halogenating agent.  The rubber article, e.g., a glove, may itself be formed by applying a coating of a rubber latex composition to a form, as by dipping, allowing it to stand and solidify, treating it with a coagulant, and allowing it to dry to a damp condition.  After the rubber latex-flock mixture, which also contains water-soluble gelling and thickening agents, has been applied and solidified, it may be washed to remove water-soluble compounds, dipped in a lubricating stripping solution, e.g., an aqueous solution of a water-soluble polymeric hydrophilic colloid such as alkali polyacrylates, cellulose ethers, proteins and vegetable mucilages, and then dried.  The rubber coatings are then vulcanized, e.g., in a hot air oven, and the article is wetted, stripped from the form, and washed.  It is then halogenated in an aqueous bath containing chlorine or bromine; after neutralization of the halogenating agent by adding a weak solution of ammonia or dimethylamine, the article is dried by tumbling in dry air.
Patent GB-1145537-A (GB)
Title: Method of joining cable sheaths
IPC: B23K1/19
Filed: 1966-07-06
Abstract: 1,145,537. Soldering. ALLM€NNA SVENSKA ELEKTRISKA A.B. 6 July, 1966 [7 July, 1965], No. 30318/66. Heading B3R. In soldering a cable sheath of lead alloyed with antimony, tin and antimony, tin and cadmium, tellurium, arsenic or arsenic and cadmium to another sheath or connection device, in order to prevent cracking of the material of the sheath a solder is used which melts below a certain temperature which is critical for the lead alloy in question, the solder also having a viscosity so low at this temperature that it runs off the cable sheath without acting as a solder. Where the lead of the sheath is alloyed with Sb, Sn and Sb, Te, As or As and Cd the critical temperature is 260‹ C. and with Sn and Cd the temperature is 245‹ C. Preferably the solder melts 50‹-70‹ C. below the critical temperature and has the low viscosity at 30‹-50‹ C. below the critical temperature. The solder composition is as follows: 30-40% tin, 0À5-1À5% bismuth, 0À1-1À0% indium, up to 2À5% other metals and the remainder lead. 0À05-0À15% of cadmium and/or mercury may be included to improve surface activity and one or more of the elements sodium, potassium or lithium as an antioxidant in the amount 0À01 to 0À05%. When the material of the cable sheath contains one of the following: Sb, Te, As or Cd the solder also preferably contains 0À1-1À0% of that metal. Specific examples of solder compositions falling within the above ranges are given. The alloying elements in the cable sheath may be present in the amounts: up to 0À45% Sn, up to 0À95% Sb, Te and As, severally or in total if used together and up to 0À30% Cd. The solder may be cast as sticks of cross-sectional area from 0À3 to 0À8cm<SP>2</SP> or used in powder, granular or paste form. Abutting sheaths 2, 3 are provided with an encircling socket 4 of similar material and soldered 5, 6 to provide the desired connection.
Patent GB-992697-A (GB)
Title: Improvements in or relating to processes and apparatus for deodorising oils and fats
IPC: C11B3/12
Filed: 1961-08-23
Abstract: <PICT:0992697/C4-C5/1> <PICT:0992697/C4-C5/2> In an apparatus for the deodorization and removal of acidic components from oils and liquid fats by treating the oil or fat under vacuum with steam, the steaming-tubes 10, 11, 13 and 14, heat exchanger 6, preheater 7 and vent pipe 19 are encased in a horizontal tubular shell 2, and the same degree of vacuum is maintained in the space between the shell and the steaming-tubes as is maintained inside the steaming-tubes. This may be achieved by connecting both the vent pipe 19 and the shell 2 to steam-ejectors.  The oil to be treated is filtered and then flows through a valve into one section of heat-exchanger 6.  The oil leaving the heat-exchanger flows through preheater 7, and then along tube 10 at such a rate as to half-fill the tube.  The oil leaving tube 10 flows back along tube 11, and is then introduced into tube 13 by an air-lift pump (not shown).  After the oil has passed along tube 13, it flows back along tube 14.  In each of the tubes 10, 11, 13 and 14, the oil is heated by pipes 26, and is contacted with live steam injected through pipes 25.  The mixture of steam and the vaporized components of the oil pass leaves the steaming-tubes through tubes 21, 22, 23 and 24 respectively and enters vent pipe 19; and the combined mixture is boosted and withdrawn to a barometric condenser maintained by the steam-ejectors.  The treated oil leaves tube 14, flows through the other section of heat-exchanger 6 and is withdrawn from the apparatus into a cooler.
Patent GB-602963-A (GB)
Title: Method and means for securing fittings to wire structures
IPC: H01R43/042
Filed: 1945-11-13
Abstract: 602,963. Jointing by rolling. AMERICAN STEEL & WIRE CO. OF NEW JERSEY. Nov. 13, 1945, No. 30366. Convention date, Nov. 13, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Groups I and XXV] An eye 16 is secured to a wire cable 10c by a collar 14 by mounting the collar in position, temporarily wedging the cable in the collar by insertion of a taper pin 30 and then subjecting the collar to a rolling &c. operation permanently to deform the collar. Making wire fabrics.-The strands of ropes forming a wire fabric are united by collars, Fig. 1 (not shown).
Patent GB-701678-A (GB)
Title: Improvements in or relating to secondary electric batteries
IPC: H01M10/04
Filed: 1950-12-06
Abstract: 701,678. Batteries. YARDNEY INTERNATIONAL CORPORATION, [formerly YARDENY INTERNATIONAL CORPORATION]. Dec. 6, 1950 [April 4, 1950], No. 30458/52. Divided out of 701,643. Class 53. The positive electrode of an accumulator consists of two portions of active material 12a, 12b enclosed in the limbs of a U-shaped envelope 15 of semipermeable material, the bight 20 of the envelope being free from active material. The negative electrode 11 is situated between the limbs of the envelope. The envelope may be made of layers of regenerated cellulose and absorbent paper and the positive electrode may be made by first enclosing the active material in porous paper wrappers 14a, 14b and placing the wrapped portions on a sheet of regenerated cellulose which is then folded over to enclose the wrapped portions of active material. Further wrappings of regenerated cellulose or paper may be added and the whole then folded into U-shape. The negative electrode is enclosed in a porous wrapper 13. The positive and negative active materials may consist respectively of silver and powdered zinc or zinc oxide mixed with yellow oxide of mercury, the electrolyte being a solution of caustic potash saturated with zinc oxide. Specifications 680,793, 682,164, 683,165, 698,405, 701,641, 701,642, 701,643 and 701,644 are referred to.
Patent GB-840754-A (GB)
Title: Improvements in or relating to electric contacts
Inventor: ELLIOTT WILLIAM JAMES
IPC: H01H85/20
Filed: 1957-09-30
Abstract: 840,754. Two-part couplings. GENERAL ELECTRIC CO. Ltd. Sept. 16, 1958 [Sept. 30, 1957], No. 30544/57. Class 38(1). An electric contact in a bridge carrier fuse comprises a copper strip bent into U-form, the limbs 2 having internal line protuberances 5 inclined at 90 degrees in order that good contact is made with contact block 8 and overheating avoided. The protuberances, made by pressing, run transverse to and along the limbs, the latter one ending in hole 6. The contact is attached to fuse body 7 by screw 4. In other embodiments the line protuberances are set at 45 degrees to the limbs whose free ends beyond are removed (Fig. 2 not shown) and a series of protuberances are set in lines at 45 degrees on the outer limb surfaces (Fig. 3 not shown) or along and transverse to the inner limb surfaces (Fig. 5 not shown).
Patent GB-188953-A (GB)
Title: Improvements in or relating to gyratory crushing apparatus and similar gyratory mechanism
IPC: B02C2/06
Filed: 1921-11-16
Abstract: 188,953. Vickers, Ltd., and Benfield, J. Nov. 16, 1921. Crushers with gyratory heads.-The gyratory shaft b of a gyratory crushing-apparatus or other mechanism is provided at one end with an inverted cup or socket a which forms a housing for an eccentric spherical bearing c rotatably mounted on the stationary support d and surrounded by a sleeve e enclosed in a liner f attached to the cup a. The sleeve c is preferably made in two parts, and the sleeve e and bearing d are formed with complementary recesses e<1>, c<1> in which is placed a ball g of such a size as to permit of the oscillatory motion. A wheel h<2> on the driving-shaft h<1> gears with a wheel h which is integral with the bearing c and is seated on a washer j disposed on an annular supporting-part k of the base-plate l. Lubricant delivered to the upper end of the bearing c by a pipe p from a supply pipe n, extending up through the hollow support d and connected to a pump &c., flows over all the bearing-surfaces enclosed by the cup a and collects in a well q whence it is returned by a pipe r to the pump &c. The liner may be longitudinally movable on the sleeve to effect vertical adjustment of the shaft relatively to the bearing.
Patent GB-464585-A (GB)
Title: Improvements in or relating to apparatus for permanently waving hair
IPC: A45D6/02
Filed: 1935-11-06
Abstract: 464,585. Hair - curling appliances. McADIE, J. Nov. 6, 1935, No. 30705. [Class 131] A winding-apparatus comprises a tubular casing 1 slotted at 8 and open at one or both ends, a curved member 6 located partly within the casing adapted to exert a variable pressure on a curler, or on a tress of hair wound on a curler and to apply the tress of hair smoothly on to the curler, and a bridge piece 11 attached to the exterior of the casing carrying a roll of gauze &c. 13 which is wound by the apparatus to maintain the hair coiled on the curler. The curved plate 6 is carried by a spring 4 secured to the end of the tube 1 adjacent the handle 3 and passing through a hole in the tube. The slot 8 opposite the plate 6 is enlarged as shown at 9 and the tube also carries a guide 10 for the hair tress. The curved bridge 11 partly covers the spring 4, and carries a support 12 for the bobbin 13. The spindle of the bobbin is substantially parallel with the face 17-18 of the bridge piece 11 and inclined to the axis of the tube. In operation, a curler rod is inserted in the tube 1 with its split end 20 projecting beyond the open end of the tube and a tress of hair 21 is attached to the split end of the curler. A cursor 7 on the tube is moved towards the end 2 compressing the spring 4 and clamping the curler between the wall of the tube and the plate 6, The hair-tress is then drawn through the opening 9 and passed through the guide 10. The end 20 of the curler is held stationary in one hand and the apparatus is rotated counter-clockwise as viewed from the handle end. The tress then passes under the curved plate 6 on to the rod and the apparatus moves outwards along the rod. After hair has been wound on the rod to the desired extent, the free end of the gauze roll impregnated with adhesive is carried over the surface 17, 18 of the bridge 11 beneath a spring-pressed plate 16, passed under the tube, through the opening 9 and laid on the wound tress. Further rotation of the apparatus causes the gauze to pass under the curved plate 6 on to the wound tress. The apparatus may be rotated manually or otherwise. According to the Provisional Specification, the plate 6 may be flat, the spring 4 may be of any type and may be located within the tube, and the cut-away portion 9 may be of any other shape.
Patent GB-926484-A (GB)
Title: New or improved screw fastening device
Inventor: DISLEY AUBREY
IPC: F16B12/14
Filed: 1959-11-21
Abstract: 926,484. Screw sockets. GEORGE GOODMAN Ltd. Sept. 7, 1960 [Nov. 21, 1959], No. 30771/60. Divided out of 926,483. Class 89 (1). A sleeve of synthetic resinous material, for securing a screw, has an enlarged bore D<SP>1</SP>, and a smaller bore A, of lengths D and B respectively, and a wall thickness C which collapses when a screw is screwed into bore A. The relationship between the dimensions is where M is the major diameter of the screw, X lies between limits +0.0095 and +0.0155, Y lies between limits- 0.038 and +0.002, U lies between limits +0.055 and +0.095, V lies between limits 0 and +0.130, the units being inches.
Patent GB-151187-A (GB)
Title: Improvements in and connected with radiators for motor cars and such like
IPC: F28D1/04
Filed: 1919-12-10
Abstract: 151,187. Urie, J. C. Dec. 10, 1919. No Patent granted (Sealing fee not paid). Radiators, mounting and supporting. - The radiator C of a motor-ear is resiliently mounted on brackets B within a fixed frame A by means of springs G on one or more rods F at each side connecting the top and bottom tanks D, E. Spring washers M at the top of the rods allow for expausion and contraction of the tubes. The brackets B are received in guides B' in the frame and are secured by screws &c. J. The frame is attached to the chassis by screwed pins at the bottom. The filling nozzle K is removable to allow of the removal of the radiator from the frame for repair &c. Reference has been directed by the Comptroller to Specification 151,858.
Patent GB-808784-A (GB)
Title: Arrangement for shifting the needle of a sewing machine in its mounting in the needle bar
IPC: D05B55/02
Filed: 1956-10-11
Abstract: 808,784. Sewing machines. STROBEL, O. Oct. 11, 1956, No. 30997/56. Class 112 Needle holders. The needle 3 is held in a notch in a plate 2 which may be shifted transversely in the needlebar by a rotatable eccentric 4 engaging a recess in the plate. A spring 7 presses the clamping plate 5 away from the needle shank when the clamping screw 6 is loosened.
Patent GB-230191-A (GB)
Title: Improvements in or relating to automobile and other vehicle bodies
IPC: B62D29/04
Filed: 1923-12-10
Abstract: 230,191. Ward, G. L. Dec. 10, 1923. Bodies.-The body panels of road vehicles are treated by securing thereto by adhesive a textile fabric, plain or decorative, which is afterwards coated with layers of celluloid or other transparent varnish to fill the pores and subsequently with layers of oil varnish. The varnish may contain castor oil to give the required flexibility. According to the Provisional Specification, the fabric may be of animal origin.