baber/WOPTO huggingface dataset:
Patent GB-1245697-A (GB)
Title: Transducer
Inventor: MASKERY ARTHUR
IPC: G01D5/22
Filed: 1969-02-19
Abstract: 1, 245, 697. Measuring angular displacement electrically. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 4, 1970 [Feb. 19, 1969], No. 8881/69. Heading G1N. A transducer for measuring angular displacement of a shaft 2, Fig. 1, comprises a circular plate 1 of magnetic material and of varying thickness, centrally attached to the shaft and facing diametrically located coils 4, 5 on E-type cores 6, 7 whereby the inductances of the coils vary differentially with rotation of the shaft 2 and plate 1. The coils are connected in an A. C. bridge circuit, or form the two halves of the primary of a differential transformer. Further coil assemblies such as 4-7 may be located, displaced by 90 degrees, to obtain unambiguous measurements over 360 degrees. The variation in thickness of plate 1 may be other than linear.
Patent GB-735189-A (GB)
Title: Improvements in engine inertia starters
IPC: F02N5/04
Filed: 1952-04-08
Abstract: 735,189. Turning-gear. PECK, W. J. July 8, 1953 [April 8, 1952]. No. 8956/52. Class 7(5). [Also in Group XXIV] A centrifugal friction clutch (not shown), such as that described in Specification 735,187, used in an inertia-type engine starter,is provided with adjusting means to select one of two or more predetermined engaging speeds. The control shown is a part of that of Specification 735,187, wherein the outward movement of a masscarrier 45 about pivots 44, on a driving member 41 turns a clutch-control sleeve coaxial with the driving member, and, is opposed by a spring- loaded detent 67 also carried by the driving member 41 and engaging notches 69 in the masscarrier 45, as well as by a main loading-spring. The loading spring 68 of the detent 67 is compressed to either of two pre-set loads giving two different engaging speeds, by turning a member 75, in face-cam engagement with a non-rotary spring-abutment 70, the load being pre-selected, when the driving member begins to rotate, by thrusting inwards one of two connected stationary pins 80 or 81 into the path of a sector 79 fast with the cam 75 which latter is thereby caused to turn one step in one or other direction to select the appropriate spring loading. Alternatively the control may unload the detent or move it axially to two or more positions where it engages notches of different depths or a plain part of the member connected to the mass, or mass loading may be changed by one or more additional controllable springs.
Patent GB-851047-A (GB)
Title: Improvements in and relating to semi-conductor rectifier units
Inventor: MCCUTCHAN JOHN CHARLES
IPC: H01L23/473
Filed: 1956-03-22
Abstract: 851,047. Semi-conductor devices. ENGLISH ELECTRIC CO. Ltd. March 21,1957 [March 22, 1956], No. 8973/56. Drawings to Specification. Class 37 The subject-matter is the same as that in Specification 851,048. The claims are particularly directed to the provision of passages for the flow of a cooling fluid extending across a general direction of heat-transfer between the semiconductor element and the body member radiating from a common duct normal to the surface where the heat-transfer occurs. Specification 851,043 also is referred to.
Patent GB-308280-A (GB)
Title: New or improved methods for the production and use of stable sulpho-acid products ofhigh molecular weight
IPC: C11C1/04
Filed: 1927-12-20
Abstract: 308,280. Oranienburger Chemische Fabrik Akt.-Ges., (Assignees of Chemische Fabrik Milch Akt.-Ges.). April 1, 1927, [Convention date]. Divided on 288,126. Carbonizing fibres &c.-Sulphonated acids and their salts obtained by sulphonating the mixtures described in Specification 288,126 by means of sulphonating and dehydrating and/or condensing agents, excepting oleum and the mixtures employed according to Specification 288,126 are used in carbonization operations. The sulphonating agents include mixtures of phosphoric anhydride, metaphosphoric acid, phosphorus trichloride, phosphorus oxychloride or similar inorganic acid chlorides or anhydrous potassium or sodium sulphate or the like with concentrated or fuming sulphuric acid or chlorsulphonic acid.
Patent GB-654855-A (GB)
Title: Polyvinyl alcohol-diketene reaction products and process for producing the same
IPC: C08F8/14
Filed: 1948-03-31
Abstract: Esters of a polyvinyl alcohol with aceto-acetic acid are prepared by reacting a polyvinyl alcohol with diketene, the reaction being preferably effective under substantially anhydrous conditions at a temperature of 60-175 DEG  C., preferably 100-150 DEG  C., in the presence of an inert solvent, preferably a liquid amide of a monocarboxylic acid in which the carboxylic acid residue contains from 1 to 6 carbon atoms, such as dimethyl formamide. The polyvinyl alcohol employed may be a partially or completely hydrolyzed polyvinyl carboxylate such as polyvinyl acetate, propionate, laurate, stearate and benzoate, or a partially or completely hydrolyzed vinyl carboxylate interpolymer such as vinyl chloride-vinyl acetate interpolymer, vinyl acetate-vinyl butyrate interpolymer and ethylene-vinyl acetate interpolymer, a preferred polyvinyl alcohol being water-soluble and having a viscosity in 4 per cent water solution ranging from 5 to 70, preferably 20 to 50 centipoises at 20 DEG  C.  Generally, amounts of diketene are employed so that from 5 to 100 per cent of the available hydroxyl groups in the polyvinyl alcohol are acylated; the reaction product may be obtained from solution in the inert solvent by precipitation by pouring into methanol or benzene. Specification 654,856 is referred to.  The Specification as open to inspection under Sect. 91 refers also to reacting a polyvinyl alcohol with 1-butene-1,3-diones of the general formula <FORM:0654855/IV (a)/1> wherein R and R1 are hydrogen or hydrocarbon radicals which may be aliphatic or aromatic.  This subject-matter does not appear in the Specification as accepted.
Patent GB-961111-A (GB)
Title: Motor road vehicle signal lamp system
IPC: B60Q1/26
Filed: 1963-03-07
Abstract: 961,111. Vehicle rear lamps. GENERAL MOTORS CORPORATION. March 7, 1963 [March 16, 1962], No. 9153/63. Heading F4R. [Also in Division G4] A lamp unit for a vehicle signalling system (see Division G4) comprises a parabolic reflector 70 with two filaments 12, 14, the first of which is at the focal point of the reflector. A fluted spreading lens 72 spreads the light from filament 12 over about 30 degrees, and that from filament 14 over about 46 degrees, so that with equal wattage filaments the beam from filament 14 is of lower intensity than that from filament 12.
Patent GB-567116-A (GB)
Title: Improvements in and relating to fluid pressure servo motors
IPC: F15B11/00
Filed: 1943-06-08
Abstract: 567,116. Actuation of switches. DAKIN, E. M., FLURSCHEIM, C. H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 8, 1943, No. 9209. [Class 38 (v)] A fluid-pressure servomotor has, in addition to a control valve for the motor, an auxiliary valve responsive to the fluid-pressure so as only to open and allow application of the pressure to the motor (in response to operation of the control valve) when the pressure is adequate. - The pressure is at least that required to complete the operation of the motor, or may be higher, for example, to provide also a blast of arc-extinguishing air for the switch controlled, by the motor. In the application of the invention to Fig. 3 of Specification 547,930, in which the control valve 64 places the supply pipe 56 in communication with a piston 62 adapted, through the medium of a toggle 70, to open the main valve 54 and supply fluid direct from the pipe 56 to the servomotor cylinder 44, the outlet port 80 of the control valve 64, instead of communicating directly with piston 62, is connected thereto through an auxiliary valve and pipe 105 which may be located in the valve-casing 78. The valve comprises a narrow extension 106 of a body 101 biassed to closed position by adjustable spring 108, the pressure, after opening, acting on the upper face of extension 106 to reinforce the opening-pressure and prevent valve-chatter. Both valves of Fig. 3 of Specification 547,930 may be so modified, the strength of the bias springs being adjusted. to the different pressures employed for the opening and closing operations.
Patent GB-250598-A (GB)
Filed: 1926-04-07
Abstract: 250,598. Soc of Chemical Industry in Basle. April 8, 1925, [Convention date]. 2 : 3-Aminonaphthoic acid is obtained by heating 2 : 3-oxynaphthoic acid in a closed vessel with aqueous ammonia in the presence of an ammonia double compound such as ammoniacal zinc chloride or ammoniacal calcium chloride. The product after heating is dissolved in dilute hydrochloric acid, filtered hot, and the filtrate is mixed with common salt; on cooling the hydrochloride of the amino acid separates. The hydrochloride is dissolved in sodium carbonate and the free acid precipitated by feebly acidifying the solution.
Patent GB-1378333-A (GB)
Title: Process for manufacturing granular expanded ceramic materials
IPC: C04B20/06
Filed: 1972-02-29
Abstract: 1378333 Granular expanded ceramic E METZGER 29 Feb 1972 [5 March 1971] 9261/72 Heading B5A Granular expanded ceramic material, e.g. for use as lightweight aggregate for concrete, is formed from a material consisting of at least 25% gas forming mineral substances and the remainder of mineral substance with silica content exceeding 65% which is ground, homogenized and formed into pellets with water, these then being coated with cement by tumbling or rolling, dried and preheated in a kiln for about 20 minutes, the temperature raised to 1000 to 1200 C. for at least 3 minutes and then cooled to below 550 C. Suitable apparatus is described (Fig. 1, not shown), The gas-forming mineral may be a distensible clay, argillite or a volcanic earth such as pumice and the silica containing material may be sea sand or sandstone. Alternatively both substances may be present in a single naturally-occurring mineral such as a sandstone containing clay. About 1 to 3% of caustic soda may be added to the pelletizing water to improve the subsequent distension action. Cement dust may be blown into the granules in the firing kiln in a direction parallel to the burner flame. This process is said to produce granules having a uniform bubble structure, the dividing walls being substantially bubble-free and containing crystallites, and the cement coating being continuous and with a fine-grained roughened finish.
Patent GB-855915-A (GB)
Title: Improved loom for the production of stretchable elastic wool textile fabrics
IPC: D03D15/56
Filed: 1957-02-20
Abstract: 855,915. Looms. SIMONS & FROWEIN A. G., Feb. 20, 1957, [Feb. 20, 1956], No. 9296/60. Divided out of 855,914. Class 142(2). Rubber threads 2 supplied from a separate braked warp beam (not shown) pass round a braked roller 4 having a groove for each rubber thread; they then pass over a fixed bar 5 and between fixed bars 10 where they join the main warp 6.
Patent GB-1127872-A (GB)
Title: Supporting frames for sheet material
Inventor: ANONYME KODAK-PATHE SOCIETE
IPC: G03D13/12
Filed: 1967-02-28
Abstract: 1,127,872. Film processing frame. EASTMAN KODAK CO. Feb.28, 1967 [March 1, 1966], No. 9341/67. Heading G2A. A processing frame for holding a sheet of photographic film F comprises three angle sections 1 connected together to form three sides of a rectangle. The sections are perforated, as at 3. On each side of the frame is a rod 8 which slides in sleeves 10 secured to the side frame members. The top of each rod 8 is bent at right-angles to form an arm 9, which can be turned so as to engage under a latching member 13 carried by the upper cross frame section. Each rod 8 carries two detents 11 which, when arm 9 is engaged under member 13, clamp the edges of the sheet F after it has been slidden into the frame. The frame may be suspended in a processing bath by means of a bar 5.
Patent GB-271423-A (GB)
Title: Improvements in or relating to extrusion presses
IPC: B21C23/20
Filed: 1927-04-05
Abstract: 271,423. Krupp Grusonwerk Akt.- Ges., F. May 18, 1926, [Convention date]. Squirting.-A press, comprising a container, die and ram for extruding a heated billet, is constructed so that the ram 2 can be mounted on the plunger 4 or equivalent or on the stationary head 6, the container 8 remaining stationary during extrusion in the first case and in the second moving with the plunger. When the ram is fixed to the plunger 4 it is either solid or has its end closed by a plate 1 and the die 5 is secured by a ring 15 to the head 6. When the hollow ram 2, Fig. 2, is secured by a ring 3<1> to the head the die 5<1> is mounted in its end. The press may be provided with a mandrel as shown in Specification 270,665 if it is desired to make, hollow bodies.
Patent GB-743009-A (GB)
Title: Improvements in saws
IPC: B23D51/12
Filed: 1953-04-07
Abstract: 743,009. Hand saws. WELLS, B. May 31. 1954 [April 7, 1953], No. 9422/53. Class 61 The handle 6 of a saw is detachable from the frame 1 and pivotally carries locking and tensioning means 12, the arrangement being such that movement of the means 12 in one direction draws and retains the handle on to the frame and also tensions and locks the blade in position. As shown in Fig. 4 the handle is slotted at 5 to receive the frame and has a downward extension 7 having a slot 8 into which project studs 9 on which the means 12, in the form of a lever, is pivoted. A slot 10 between the studs permits passage of the saw blade 3 and a slot for the same purpose is provided at the adjacent end of the lever 12. Assembly of the parts is effected by fitting the lever 12 over the studs 9, and fitting the blade within a slot 2 in that end of the frame remote from the handle. The frame is then passed into the slot 5 and the blade fitted into the slotted hooked part 5a of the lever as shown in Fig. 2, the lever being subsequently swung into the operative position, Fig. 1. The studs 4 of the blade upon which the tension is exerted may be removably mounted by forming them with slots 18, Fig. 11, by which they can enter kevhole openings in the blade. Reference has been directed by the Comptroller to Specification 667,605.
Patent GB-165234-A (GB)
Title: Improvements in or relating to compression pumps
IPC: F04B39/12
Filed: 1920-04-01
Abstract: 165,234. Chew, L., and Jennings, W. F. April 1, 1920. Check lift valves.-A compressor of the kind described in Specifications 127,225, [Class 8 (i), Air and gases, Compressing &c.], and 151,902, comprises a false or yielding cylinder head formed of two concentric discs 20, 22 wherein are housed ring valves 30, 31, retained in concentric position by spring-pressed plungers i, carrying steady pins which allow a limited movement; the valves are retained on their seats by light helical springs m. The discs 20, 22 are held together by a screwed bolt 21 and nut n, and the upper disc is held by helical springs q housed in cavities in its upper surface and bearing against the removable cover p. The lower disc rests on a seating r and is formed with inclined or other holes 27 communicating with annular slots in its upper surface, which are closed by the ring valves 30, 31. The upper disc is formed with an annular channel 37 enclosing the valves, in which the gas is collected and from which it is led by a passage 38 and chamber s to the discharge conduit. The plungers i carrying the steady pins are housed in holes h within the channel 37. Shoulders k on the pins limit the lifts of the valves.
Patent GB-549937-A (GB)
Title: Improvements in or relating to knitted fabric and machines for producing the same
IPC: D04B9/10
Filed: 1941-07-25
Abstract: 549,937. Knitting. HOLMES, H. H., HURD. J. C. H., and WILDT & CO.. Ltd. Juy 25, 1941, No. 9488. [Class 74 (ii)] Knitted fabrics, either flat or tubular, or knitted articles such as stockings, pullovers, or jackets are provided with pattern effects including pelerine stitches F, purl stitches ps, and wrap or embroidery thread effects G. The fabric may have, as shown, complete courses ps of purl stitches alternating with complete courses pc of plain stitches, or purl stitches and plain stitches may occur in the same course or courses. The pelerine stitches or the wrapthread effects occur in the plain stitch portions of the fabric. Jacquard purl designs may be' made. Garment lengths or the garments may be produced in string formation with separating courses or draw threads, and may have welts A and rib-knitted courses B. The fabric or articles may be made upon a superposed cylinder machine having pelerine stitch mechanism as described in Specification 540.922 and wrap striping mechanism including patterning mechanism for selectively operating the wrapthread guides as described in Specification 543,097. So that the thread-guide advancing and retracting cams do not affect the pelerine instruments. the corresponding butts of the thread-guides are longer than the butts of the pelerine instruments, and thin thread-guide cams are employed. In the place of radially disposed wrap thread-guides, axially disposed guides as described in Specification 455,801 may be used. Means are provided for shogging either the thread-guides or the pelerine instruments or both, and the pelerine instruments may be operated to collect and transfer to the adjacent needle or needles two or more sinker loops at a time. Pelerine stitch effects as shown are obtained by using instruments in pairs ; alternatively either left-handed, or right-handed instruments may be arranged singly so that a sinker loop is transferred only to one needle. The machine may have four or more feeders and patterning mechanism may be arranged at alternate feeders. Patterning mechanism as described in either Specification 282,904, [Class 74 (ii)] or 391.212 may be employed. The sinkers 36 may be formed with angular shaped front portions 36b to prevent expanded loops from sliding beneath the sinkers as the sinkers are moved forward. For removal or insertion of the pelerine instruments or wrap threadguides. a hinged door is provided in the upper surface of the instrument-carrying dial or bed. Specification 526,963 also is referred to in the Provisional Specification.
Patent GB-563277-A (GB)
Title: Improvements relating to containers supplied in unassembled condition for assembly by the user
IPC: B65D8/00
Filed: 1942-07-08
Abstract: 563,277. Containers of foldable sheet material. PAGE, J. E. July 8, 1942, No. 9508. Convention date, Aug. 12, 1941. [Classes 18 and 661 A container of the type adapted to be assembled by the user is made from a blank 20, Figs. 1 and 12, of sheet material, the upper edge of which is folded to form a rim 21 and the lower edge of which has tabs 25 foldable along a crease 31 to form a flange, the tabs forming substantially contiguous elements of the flange, the body wall being closed by securing its end 26 to the other end thereof by staples or dry moisture-proof adhesive such as latex. Such bodies may be folded flat along lines 22 and stacked for shipment &c., the blanks in the stack having the tabs at alternate ends. The bottom is constituted by an inner disc 28, Fig. 3, and an outer disc 29, Fig. 2, placed on opposite sides of the flange 25. Dry waterproof adhesive coatings A, A<1>, B<1>, B are applied to the parts so that the flange adheres to the periphery and the inner disc and the outer disc adheres to the centre of the inner disc. The container may be assembled by means of a jig 40, Fig. 12, with spring fingers 41 which direct the flanges 25 inwards. The inner disc is inserted when tabs 25 have been bent horizontal and the ends 42 of spring fingers 41 have entered recesses 43. The bottom is consolidated by pressure.
Patent GB-513006-A (GB)
Title: Improvements relating to the treatment of coal with gases while heating
IPC: C10G1/02
Filed: 1938-03-29
Abstract: 513,006. Coking processes. INSTITUTION OF GAS ENGINEERS, SOUTH METROPOLITAN GAS CO., and EVANS, E. V. March 29, 1938, No. 9569. [Class 55 (i)] Coal is heated through the temperature range in which it normally becomes plastic at such a rate of temperature, and in the presence of a current of gas or vapour, that oily matters are removed, and coking is prevented. Examples show that a coking coal may be heated through a temperature range of 375‹-400‹C. at the rate of 4‹C. rise per hour, while steam is passed at the rate of 570 lb./ton/hr.; that a less strongly coking coal may be heated at the rate of 100‹C. rise per hour and steam passed at the rate of 5,000 lb./ton/hr.; and that hydrogen at a pressure of 30 atmospheres may be used. Specification 239,993, [Class 55 (i)], is referred to.
Patent GB-885294-A (GB)
Title: Automatic weighing and feeding apparatus
IPC: G01G13/00
Filed: 1958-03-25
Abstract: 885,294. Jigging conveyers. FREEBODY, R. A., and HACKENSACK TRUST CO. March 25, 1958 [March 25, 1957], No. 9607/58. Class 78 (1). [Also in Group XVIII] The weighing receptacle 59 of an automatic feed weigher (see Group XVIII) is fed from a hopper 27 by vibrating shoots 28, 33 provided with an interconnecting hinged shoot 32 which, in the event of an excess of material collecting in shoot 33 operates a device to stop the vibrator 34 of shoot 28. A partition 55 in shoot 33 divides the shoot into a main feed channel 57, and a dribble feed channel 58 in which the articles being conveyed move in single file.
Patent GB-670032-A (GB)
Title: Improvements relating to dynamoelectric machines
IPC: H02P5/747
Filed: 1949-04-08
Abstract: 670,032. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. April 8, 1949. [April 16, 1948] No. 9618/49. Class 38 (iii). [Also in Group XXXV] A single or poly-phase variable speed induction motor comprises one or more squirrel-cage rotors acted on by at least two stator windings wound for different pole numbers energized inversely from a voltage divider. In its simplest form, shown in Fig. 1 for a single-phase machine, a pair of squirrel-cage rotors 10, 13 are coupled together and energized by a four-pole stator winding 11 and a six-pole stator winding 14 respectively, the latter including a starting circuit 15, 16. The stator windings are inversely energized from the supply 19, 20 by means of a potential dividing auto-transformer 18 so that the speed may be varied. In a modification, both stator windings are incorporated in the same machine. A further single phase modification involves four stator windings of different pole-numbers acting on two or four coupled rotors, as shown in Fig. 3. A circularly arranged auto-transformer 39 comprises three windings 40 energized from the supply and engaged respectively by three parallel connected brushes 42 controlled by a hand knob 43, and given a snap movement between windings by detents 44 on a stationary ring. A common connection from the stator windings is connected to the stationary segments 51-53, 51a-53a of a rotary switch coupled to the auto-transformer. One complete revolution of the hand knob changes the connection .through each pole number in turn.