baber/WOPTO huggingface dataset:
Patent GB-1475328-A (GB)
Title: Isolation of rubbers
IPC: C08C1/00
Filed: 1974-06-21
Abstract: 1475328 Separating rubbers from latices BAYER AG 21 June 1974 [23 June 1973 25 May 1974] 27638/74 Heading C3P A process for separating a rubber from an anionically stabilized aqueous dispersion thereof comprises adding a C 1-4  alkyl cellulose or a hydroxyalkyl cellulose, and a water-soluble alkali metal salt, alkaline earth metal salt, aluminium salt or zinc salt, to the dispersion, and removing the water from this mixture. The water may be removed by for example either (a) adding further water to the mixture until the rubber coagulates, and separating the coagulate, or (b) by spray-drying. In the examples, latices of a polychloroprene, butadiene/acrylonitrile rubber, butadiene/styrene rubber, are treated with one or more of the following mixtures: methyl cellulose/sodium chloride; methyl cellulose/sodium chloride/aluminium sulphate; and hydroxypropylcellulose/sodium chloride, and coagulated by the addition of a large volume of water.
Patent GB-503619-A (GB)
Title: Improvements in or relating to thermostatic electric switches
IPC: H01H37/66
Filed: 1937-10-12
Abstract: 503,619. Thermal switches. SHERLOCK, J. E., and BRITISH THERMOSTAT CO., Ltd. Oct. 12, 1937, No. 27732. [Class 38 (v)] A thermal switch comprises a fixed contact 1 carried by a light spring 14 attached to a resilient plate 2 fixed to a bracket 3. The movable contact 8 is carried on a bimetallic strip 9 fixed to a bracket 10, and carrying an armature 12 which co-operates with a permanent magnet 13 on the plate 2 to give a snap-action. The 'operating temperature is varied by rotation of a spindle 7 carrying a face cam 6 which engages a stud 8 to move ptate 2 towards and away from the base. When spindle 7 is turned to an extreme position, stud 8 falls into a recess 16a and circuit cannot be made since an extension 9b of the strip 9 first engages a stop 16. The temperature range can be varied by flexing bracket 10 by means of a screw 18. A modification is described in which two movable contact arms engage two contacts on a common plate 2 having a single adjusting cam.
Patent GB-598343-A (GB)
Title: Improvements in fluid-pressure-actuated systems or apparatus
IPC: F15B11/076
Filed: 1945-10-22
Abstract: 598,343. Single-stroke pneumatic pressure apparatus. GRANT, C. R. A. Oct. 22, 1945, No. 27815. [Class 8 (ii)] Displacement of a ram 10 actuated by compressed air to move e.g. a work table 26, is controlled by a hydraulic ram 27 against which the ram 10 operates, the ram 27 displacing liquid from its cylinder 28 into a tank 31 through an adjustable restricted orifice 35 ; a non- return valve 34 permits a quick return of the ram 27. This ram may be engaged over part only nf the stroke of the ram 10 with which it is in abutting connection only.
Patent GB-717936-A (GB)
Title: Improvements in or relating to machines for forming indentations in a rod of toffee or other plastic material
Inventor: ROSE ALFRED GERMAN
IPC: A23G3/02
Filed: 1951-11-28
Abstract: 717,936. Moulding confectionery. ROSE BROS. (GAINSBOROUGH), Ltd. Dec. 24, 1952 [Nov. 28, 1951], No. 27860/51. Class 87 (2). A rod 11 of toffee is fed by rollers 13 to a marking device comprising a pair of oscillating arms 14 having one or a series of knives 19. The rod is fed continuously and as the arms 14 oscillate they are moved by an arm 31 in the direction of movement of and at the same rate as the rod. The rod is severed by a rotatable knife 33 at a position corresponding to one of the indentations formed by the knives 19. A severed length 34 is fed to a platform 36 from which it is transferred to the pocket of a wheel 37 of a wrapping machine. In a modification, the rod may be moved intermittently, the arms 14 then being oscillated only.
Patent GB-279141-A (GB)
Abstract: 279,141. Stern, W. J.. April 24, 1926. Fixed-abutment type.-The vanes of a rotary pump of the radially sliding vane or sliding-rocking vane type are provided with a decreased or sub-divided bearing surface by fitting rocking be&ring-pads in the rotor slots or in the slots of the oscillatory cylindrical guides. As shown, rocking bearing-pads k of the Michell type are situated between the two members of each of the strengthening rib members b described in Specification 274,944 with which the vane a is fitted. The oscillatory cylindrical guide m is formed with enlargements n in the vane slot, l and the curvature of the sides p of the enlargements n is such that the bearing points of the pads k thereon are unsymmetrically situated. Additional bearing-pads k<1> may be provided which only come into action if the vane bends unduly. Hard wearing plates may be fitted to the vanes at the bearing points. Specification 244,181 also is referred to.
Patent GB-1271848-A (GB)
Title: Polyester composite filament yarn having stable crimps
IPC: D01D5/30
Filed: 1969-06-04
Abstract: 1,271,848. Polyester yarn. TORAY INDUSTRIES Inc. 4 June, 1969 [11 June, 1968], No. 28148/69. Heading D1W. A polyester composite filament yarn comprises a plurality of individual filaments each consisting of polyesters arranged in an eccentric disposition in a side by side arrangement and mutually adhered along the entire length thereof, said yarn having an 'apparent shrinkage' of between 0 and 20% and a 'substantial shrinkage' of less than 3% when said yarn is treated in hot water at a predetermined stretched condition of 5 mg./denier, said individual filaments each having between 10 and 35 crimps per centimetre after treatment in boiling water and a mass density of more than 1.3850. Tests are described for the determination of 'apparent' and 'substantial shrinkage'. In a preferred embodiment, undrawn composite multifilament yarn is drawn whilst heated and then passed to a relaxation zone to impart primary bulk to the yarn. The yarn is then stretched to separate the multifilaments into individual filaments, and then relaxed. The yarn is then passed through a heated relaxation zone to set the crimps obtained. Several examples of suitable polyesters for use in the yarn are given in the Specification.
Patent GB-810763-A (GB)
Title: Improvements in or relating to air blast electric circuit breakers
IPC: H01H33/56
Filed: 1957-09-06
Abstract: 810,763. Valves. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 6, 1957 [Oct. 10, 1956], No. 28165/57. Class 135. [Also in Group XXXVII] In an air-blast circuit-breaker comprising a number of series-connected breaking gaps in containers carried on pillar insulators which are filled with compressed air, a valve is provided in the connection between each of the pillar insulators and a common air pressure source, each valve having a movable valve member with a nozzle through which the compressed air passes and which is directly actuated to the closed position by the pressure difference between its sides due to the throttling of the large air stream through the nozzle in the event of a burst insulator column. In Fig. 2 the movable valve member 11 is carried by a diaphragm 10 and connected by a spider 13 to a rod 14 carrying a disc 17. A spring 18 acting on the disc 17 normally biases the member 11 to the open position shown. When the air flow through the nozzle in the member 11 becomes excessive, the member 11 is moved to the right by the pressure differential into a position in which the nozzle is closed by a fixed member 12 and the air flow ceases. At the same time contacts 15, 16 are closed to complete a signal circuit. In Fig. 3 the movable valve member is a piston 21 which is normally biased open by a spring 23. In this case the fixed member 22 is carried by an insulating bushing and the member 22 and the piston 21 act as contacts to close the signal circuit.
Patent GB-1481551-A (GB)
Title: Method for forming an electrostatic image
IPC: G03G15/22
Filed: 1974-06-25
Abstract: 1481551 Electrostatic printing FUJI PHOTO FILM CO Ltd 25 June 1974 [25 June 1973 10 Aug 1973] 28224/74 Heading G2H An electrostatic image is formed on a material 1, having a conductive surface layer 4 on the front face of an electrostatically insulating support 2 from which portions of the layer 4 have been removed imagewise to reveal areas 3 of the insulating support 2 which are electrically isolated from earth, by uniformly charging both the revealed areas 3 and the remaining conductive layer areas 4, and subsequently grounding the surface of each charged conductive layer portion 4', 4" to earth to remove the charges therefrom so that the charges on the revealed areas 3 remain to form the electrostatic image. Grounding may be effected by connection to earth directly or via a resistor; or via an intermediate stage in which a bias voltage is first applied between the conductive areas 4 and earth, and then the bias is removed. The Specification also discloses apparatus that forms the subject of Specification 1481552 divided herefrom.
Patent GB-355549-A (GB)
Title: Improvements in and relating to fan-operated induced-draught installations
IPC: F04D29/54
Filed: 1930-09-22
Abstract: 355,549. Chimneys. SCHMIDT'SCHE HEISSDAMPF-GES., 2, Rolandstrasse, Wilhelmshohe, Cassel, Germany. Sept. 22, 1930, No. 28324. Convention date, Oct. 14, 1929. [Class 25.] In an induceddraught installation for furnaces, particularly marine boiler furnaces, comprising an overhung screw fan 2 arranged in the funnel or chimney 1, the latter is fitted with an annular insertion disposed on the suction side of the fan and having a clear diameter not greater than that of the blade-tip circle of the fan. The insertion may be a simple ring 5, Fig. 3, or may take the form of a conical fitting 6 as shown in Fig. 4. Specification 5749/86, [Class 137, Ventilation], is referred to.
Patent GB-757961-A (GB)
Title: An improved combined crushing and mixing or like machine
IPC: B01F7/16
Filed: 1954-10-01
Abstract: 757,961. Crushing and mixing machines. USINES TANVEZ AND COUQUET, H. D. J. Oct. 1, 1954 [Dec. 12, 1953], No. 28368/54. Classes 59 and 86. A combined crushing and mixing machine comprises a set of rotary tools 3 mounted within a vat 1 provided with a discharge spout 10, a jacket 8 the lower portion of which is of quadrilobate cross-section being mounted within the vat to provide an annular space 9 between it and the vat, which space communicates with the interior of the jacket both at the upper and lower edges of the jacket. The upper portion of the jacket is of circular cross-section, and the discharge spout 10 is closable by a cowl 11. The set of rotary tools 3 is in the form of three equi-angularly spaced knives which centrifuge the material, which may be mixed with water, and cause it to rise through the space 9. The vat has a removable cover 7.
Patent GB-446667-A (GB)
Title: Improvements in or relating to apparatus for use in sorting letters or like articles
IPC: B07C3/08
Filed: 1934-10-04
Abstract: 446,667. Endless - chain conveyers. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and WILMAN, C. W., c/o Ericsson Telephones, Ltd., Beeston, Notting- ham. Oct. 4, 1934, No. 28391. [Class 78 (i)] [See also Groups XVIII and XXXVIII] Letters &c. to be sorted are placed on a conveyer and discharged therefrom on to predetermined cross conveyers 11, the sorting being effected by an electric relay system controlled by a keyboard 16. The letters may be removed from the conveyer 1 by electromechanical or electro-pneumatic means, e.g. a suction tube may be applied electromagnetically to the letter and, after lifting the letter, may be swung to a position in which the vacuum is broken and the letter dropped at a required station. Preferably, the conveyer is built of hinged trays 3, the pivotal axes 4 of which are coupled by side links 5 and have rollers 8 running in channel tracks 9. The conveyer runs over end drums built of side discs notched at the periphery to accommodate the rollers 8. The trays may remain open along the lower run of the conveyer or may be provided with springs to reclose them after discharge of the letters. The guide channels 9 are carried by standards 19 on ledges 17 between which run cross-conveyers 11 on which the letters are selectively discharged from the trays, the crossconveyers delivering the letters deposited thereon to receptacles 18. The actuation of the keys is rendered operative to result in the discharge of the letters on to the selected crossconveyers by the energizing of electromagnets 20, the armature 21 of which cause stops 23 to move into the path of the arms 24 on the trays, thereby tilting the trays to discharge their contents.
Patent GB-814298-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H04N9/26
Filed: 1955-10-06
Abstract: 814,298. Colour television tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Oct. 6,1955 [Oct. 18, 1954], No. 28450/55 Class 39(1). The linear conductors comprising the colour control electrode of a cathode ray tube are disposed as elements of a cylindrical surface the axis of which is parallel to one axis of symmetry of the multi-colour phosphor screen of the tube. The phosphor screen may be spherical, flat or barrel-shaped and the control grid is preferably concave towards the electron gun of the tube. The mathematical relationships between the parameters of the screen, the control grid and the deflecting means for the beam are discussed in the Specification. The two interleaved sets of wires 23, 25 comprising the grid are strung across notches 14 in a glass or ceramic end beam 15 of curved shape which rests on a frame 13, 13<SP>1</SP> and secured by hooks 171, 19<SP>1</SP> depending at right angles from continuous strips 17, 19 which are held to the beam by insulating cement. A strip of insulation 21 overlies the strip 19 and prevents contact of the wires 23 therewith. The laced wires hold the beam 15 securely against the frame. The wires are electron-optically centred on the red-andblue-sensitive phosphors of a 3 colour screen, a metallic layer e.g. aluminium, overlaying the phosphors.
Patent GB-1466274-A (GB)
Title: Process for obtaining sulphur from ammonium salts of sulphur oxyacids
IPC: C01B17/06
Filed: 1974-06-27
Abstract: 1466274 Sulphur DAVY POWERGAS GmbH 27 June 1974 [28 June 1973] 28487/74 Heading C1A Sulphur is obtained from an ammonium salt of a sulphur oxyacid by introducing the ammonium salt and a reducing agent selected from hydrogen and gaseous reducing hydrogen compounds into a reaction chamber at 800- 1300‹ C. and the reaction gas issuing from the reaction chamber is cooled to a temperature of 125-325‹ C. to condense out a substantial part of the sulphur formed in the chamber. The hydrogen may be supplied as coke oven gas or town gas. Hydrogen sulphide, ammonia and lower aliphatic hydrocarbons of up to 5 carbon atoms (e.g. methane, ethane, propane) may be employed as reducing agents. In addition, a fuel may be burnt in the reaction chamber with an approximately stoichiometric (i.e. 99À5- 100À5% of stoichiometric) amount of oxygen. After condensing out the sulphur, the reaction gas may be further converted in a Claus furnace installation using, e.g. an aluminium oxide catalyst.
Patent GB-1115916-A (GB)
Title: Improvements in or relating to a monorail transport system and self driven pallets therefor
IPC: B61C13/04
Filed: 1965-07-06
Abstract: 1,115,916. Monorail system. EASTMAN KODAK CO. 6 July, 1965 [6 July, 1964], No. 28498/65. Heading B7L. In: a monorail system in which self-driven pallets 10, Fig. 1, for carrying work components 12 may be stopped at various sub-assembly stations, e.g. 22, 23, along the track 21, each pallet comprisesan electric motor 16 mounted on an arm 41 pivoted at 40 to the pallet frame 14 and urged towards the track 21 by a leaf-spring 42, the motor having a drive-wheel 18 with a large diameter drive surface 19 for engaging the surface 17 of the track rail 21 and a small diameter drive surface 20 for engaging a track ramp 30 at a station, and a brake shoe (43), Figs. 2 and 3 (not shown), engageable with the surface 19 by means of a lever arm (46) of a torsion bar means (44) carrying the shoe, when the arm (46) engages a leading pallet on the track. The torsion bar means 44 is mounted in bearings 45 on the frame. When the surface 20 engages the ramp 30 the surface 19 is disengaged from the surface 17 of the track and the pallet slowed down. The pallet is stopped at a station, by a latch stop 32 operable by a solenoid 33 on the track, with the motor 16 continuously energized. The motor is supplied with electric power from conductor rails 26, mounted on insulating pads 29 on the track, via brushes (27), Fig. 2 (not shown), and a line (28). Each pallet has roller bearings (38) engaging the top and sides of the rail 21, which latter is supported by struts (36).
Patent GB-651102-A (GB)
Title: Improvements in or relating to flushing cisterns
IPC: E03D1/30
Filed: 1948-11-03
Abstract: 651,102. Flushing cisterns. FORDHAM PRESSINGS, Ltd., and PARKER, J. F. Nov. 3, 1948, No. 28502. [Class 26] In a lifting mechanism for the discharge valve of a flushing cistern of the kind incorporating a suction device which releases its suction after a perod of time, the suction device comprises a suction pad 6 carried by a rod 4, the pad 6 having an annular rim 7 which coacts with a disc 3 carried by a tube 2 connected to the lifting hook 2a. On actuating the lifting mechanism the suction pad 6 with the rod 4 and hook are raised to lift the discharge valve. When the pad 6 and disc 3 are raised clear of the water air is permitted to break the suction of the suction device by means of a bleed hole 9 or the like whereupon the discharge valve descends on to its seating again.
Patent GB-601428-A (GB)
Title: Improvements in or relating to core bits
IPC: E21B10/48
Filed: 1945-10-29
Abstract: 601,428. Diamond &c. core bits. WHEEL TRUEING TOOL CO. OF DELAWARE. Oct. 29, 1945, No. 28528. Convention date, June 18. [Class 124] A core bit comprises a hollow cylindrical member the working end face 15 of which is formed integrally with an annular series of projecting nibs 16 spaced apart by gaps 18 of substantially the same height as the nibs, each nib being impregnated throughout by abrasive particles and having an arcuate contour of smaller radius of curvature than the internal radius of the cylindrical member. The nibs may be of cylindrical or double cylindrical form, their height preferably does not exceed their diameter, and they may extend radially inwards and outwards beyond the remainder of the bit. Laterally projecting portions 24, 24a may be provided along the junction lines of double cylindrical nibs 22. Each nib may comprise a matrix of iron, tungsten or tungsten carbide, impregnated with diamonds or diamond particles, and brazed together by bronze.
Patent GB-943403-A (GB)
Title: Improvements relating to copying processes
Inventor: GAMES ABRAM
IPC: G03B27/30
Filed: 1959-02-11
Abstract: 943,403. Copying documents. IMAGIC PROCESS Ltd. Feb. 4, 1960 [Feb. 11, 1959], No. 28729/63. Divided out of 943,401. Heading B6C. [Also in Division G2] The subject-matter is the same as part of that of Specification 943,401 and the claims are directed to powder development of a latent oil image.
Patent GB-1280536-A (GB)
Title: Fastener means for securing two members to one another
Inventor: FORD DAVID JULIAN
IPC: F16B5/00
Filed: 1969-06-06
Abstract: 1280536 Releasable fastenings CARR FASTENER CO Ltd 31 March 1970 [6 June 1969] 28830/69 Heading E2B Fastener means for securing two members a, b to one another, comprises a pair of expansible bushes and a connecting part, each bush consisting of a body 1 made of resilient, semi-rigid plastics material, and formed with a bore which is tapered in the region of expansibility of the bush and the connecting part consisting of a shank 7 made of resilient, semi-rigid plastics material and formed with end portions for snapping engagement with the bushes, each end portion being of such diameter as to act to expand the corresponding bush when engaged therein and formed with longitudinally spaced shoulders 9, 10 engageable with the bush to secure the connecting part thereto. In the construction shown each of the bushes has a flange 2 and the bore in each in addition to the tapered portion has a portion which extends inwardly from the flanged end of the body which is of greater diameter than the maximum diameter of the tapered portion and which is joined to the tapered portion by a sloping surface formed in the bore between the inner ends of the bore portions. In addition the body is formed with axial slots (not shown) so that the tapered bore portion is defined by segments of the body. The fastener allows the two members which are fastened together to be disposed at an angle and also allows for any slight misalignment of the members. The members can be parts of an article of furniture or a wooden wall panel and a wall structure.
Patent GB-1488964-A (GB)
Title: Apparatus for identification marking of material webs
IPC: B24C1/04
Filed: 1975-07-09
Abstract: 1488964 Selective printing L EMDE 9 July 1975 [26 July 1974] 28846/75 Heading B6F Apparatus for applying identification markings to webs as numerals or other characters comprises a plurality of spray guns, each spray gun providing a bar or strip marking forming part of a numeral or character by means of a suitably shaped orifice for the ink spray. Ink or dyestuff is provided to a central nozzle 13, and air to outer nozzles 16; together with a wide orifice 12, a strip marking 14 can be produced. Seven of such guns can be arranged to provide all the elements of a numeral eight. Figs. 2 and 3 (not shown), remaining numerals from nought to nine being producable by cutting off the ink supply to one or more of the guns, Fig. 4 (not shown).
Patent GB-755219-A (GB)
Title: Improvements in or relating to impedance transformer networks
IPC: H03H7/38
Filed: 1953-10-19
Abstract: 755,219. Impedance transforming networks. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 19, 1953 [Oct. 18, 1952], No. 28860/53. Class 40 (8). [Also in Group XL (c)] An impedance transformer network comprises at least three reactance elements disposed in groups of three in star or delta formation, the sum of the susceptances of each group of three star-connected elements being zero and the sum of the reactances of each group of three deltaconnected elements being zero. The star network of Fig. 2, wherein the sum of the susceptances of the three elements C<SP>1</SP>, C<SP>2</SP>, L3 is zero, constitutes an ideal voltage transformer whose transformation ratio is equal to - C<SP>1</SP>/C<SP>2</SP>. In order that the ratio of C<SP>1</SP> and C2 may be varied whilst maintaining their sum constant, the capacitors C<SP>1</SP> and C<SP>2</SP> comprise two stators and a common rotor. The theoretical transformation ratio varies from 0 to #. By circular transposition of the elements a network may be obtained having a transformation ratio varying between 0 and 1. The data network of Fig. 5, wherein the sum of the reactances of the elements γ1, y3, #2 is zero, constitutes an ideal current transformer whose transformation ratio is equal to - γ3/γ1. In order to vary the ratio of γ1 and y3 between 0 and - oo whilst maintaining the sum of their reciprocals constant the capacitors γ1 and y3 consist of two fixed plates 5, 6 and a common movable plate 7. By circular transposition of the elements a network is obtained whose transformation ratio varies between 0 and + co. The arrangement of Fig. 8 is a combination of star and delta formations each fulfilling the conditions set forth above. The voltage and current transformation ratios are respectively - -l3fl1 and - l<SP>1</SP>/l<SP>3</SP>. The circuit may be tuned by varying the capacitances C<SP>2</SP> and C4 which follow the same frequency law.
Patent GB-230762-A (GB)
Title: Improvements in or relating to garters, suspenders and the like
IPC: A41F11/16
Filed: 1924-12-02
Abstract: 230,762. Hamson, G. P. Dec. 2, 1924. Stocking suspenders.-In a suspender having a pad a and button and loop e, one or more press button elements c are fixed on a slotted base e<1> stitched to the garter b and engaging with complementary fastenings on the pad.