baber/WOPTO huggingface dataset:
Patent GB-879304-A (GB)
Title: Improvements in or relating to the treatment of olefin polymers; and the resulting polymers and articles manufactured therefrom
IPC: C08F6/24
Filed: 1960-07-29
Abstract: Organic diluent is removed from an olefin polymer by treating with steam in the presence of an alkaline aqueous phase and in the presence of a water-insoluble salt of an organic carboxylic acid, e.g. a salt of a naphthenic or a fatty acid. The specified salts are those of Group II, IIIa and IVa metals, in particular calcium stearate or oleate.  Preferably, water-soluble salts of organic acids are included (e.g. alkali metal citrates, oxalates and tartrates), especially those which form complexes with metallic compounds contained in the polymer and derived from catalyst or the plant used. Other optional ingredients are alkali metal salts of fatty acids, e.g. sodium stearate, and bases or basic salts for use in adjusting pH.  The salts of the organic acids may be formed in situ in the vessel used in treating the polymer.  The process is especially concerned with the removal of diluent from polymers obtained by the Ziegler process as described for example in Specifications 799,392, 799,823 and 801,031.  The examples describe the removal of the gasoline diluent and the catalyst residues from polypropylene obtained by the use of TiCl4+AlEt3\sBAlEt2Cl as catalyst.  The treatment is applied after washing with HCl, ethanolic HCl and water. Specifications 804,072 and 831,123 also are referred to.
Patent GB-1092566-A (GB)
Title: Signal mixing and conversion apparatus
IPC: H03D7/12
Filed: 1966-06-14
Abstract: 1,092,566. Transistor mixer circuits. H. H. SCOTT Inc. June 14, 1966 [Dec. 14, 1965], No. 26437/66. Heading H3T. A signal mixing apparatus uses a field-effect transistor Q 1  as the mixing element. The input 21 is passed through a tuned circuit (not shown) to the source and the local oscillations 27 are passed through a tuned circuit L 2 , C 2  to the gate of the transistor Q 1 . The I.F. output is taken from the drain via tuned circuit C 3 , L 3 . Alternatively, the input may be passed to the gate and the oscillations to the source (Fig. 2, not shown), for higher conversion gain, or the input and oscillations may be connected to separate gates, the source being connected to a reference potential (Fig. 5, not shown). The local oscillator voltage and hence the conversion gain may be controlled by a D.C. signal provided by AGC detector 38 and fed to I.F. amplifier Q 3 , hence varying the bias across and the impedance of diode D 1 , and therefore varying the proportion of the local oscillations shunted to ground through diode D 1  and capacitor C 9 . Further AGO is provided in that a reduction of the voltage across resistor R 6 , caused by the AGC signal, causes diode D 2  to conduct, thus reducing the impedance of the tuned circuit C 3 , L 3 . This reduced impedance enables the mixer to handle larger input signals, at a reduced gain.
Patent GB-1269166-A (GB)
Title: Valve for removing liquid samples
Inventor: THIEL REINHARD
IPC: G01N1/20
Filed: 1970-06-02
Abstract: 1,269,166. Valves. FARBENFABRIKEN BAYER A.G. 2 June, 1970 [6 June, 1969], No. 26518/70. Heading F2V. Liquid samples, particularly of inflammable or solids-carrying liquids, are withdrawn from a container 2 by a valve arrangement comprising a rotatable ported ball valve 3 through the port 22 of which in open position there is inserted a tube 18. An annular passage 19 between this tube and a stem 11 carrying a valve 24, communicates with a sample outlet 20. The stem is operated by a lever 16 against a return spring 12. A nut 8 is in screw-threaded engagement with a member 9 to which is screwed a part 17 forming a guide for the stem 11. A seal 25 surrounds the tube 18 between the ball valve and the part 17. After transfer of a sample, e.g. into a closed cooler 21, the tube can be retracted within the seal 25 from the ball valve by rotating the nut 8 and the ball valve closed by a lever 29. The tube and valve 24 with its operating mechanism may then be wholly removed, e.g. for repair or replacement, by undoing securing studs 6.
Patent GB-1000689-A (GB)
Title: Improvements in or relating to electrical digital-to-analogue signal converters
Inventor: HUTCHINGS LEONARD HENRY
IPC: H03M1/00
Filed: 1964-06-26
Abstract: 1,000,689. Electric selective signalling. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. June 26, 1964, No. 26626/64. Drawings to Specification. Heading G4H. In an electrical digital-to-analogue converter, each bit of the digital input is fed to a corresponding section comprising bi-stable devices equal in number to the weight of the bit, to produce currents in two output leads (each connected to every section) in dependence on the number of bi-stable devices assuming one state and the other state respectively, the relative currents in the two output leads signifying the analogue equivalent of the digital input. In the particular embodiment, each bi-stable device (all identical) is a differential amplifier and each bit is supplied in normal and inverted form on a pair of leads. The two output leads may be connected to opposing deflection coils in a cathode-ray tube. Zero adjustment means are provided.
Patent GB-1428122-A (GB)
Title: Electron discharge devices having proximity focus
IPC: H01J31/50
Filed: 1972-06-08
Abstract: 1428122 Discharge tubes EMI Ltd 8 June 1973 [8 June 1972] 26688/72 Heading H1D In a discharge device employing proximity focusing between an electron source 1, 2 and a target 6, an electrode is provided for inhibiting the variation of electric potential in a region encompassing the target. In the arrangement shown, in which the source is a photocathode 1 on substrate 2, and the target 6 is an aluminized phosphor screen, the latter is enclosed by a metal box 13 having a grid face 3, whereby a potential gradient of 10 kv./mm. may be maintained between the photocathode and the box while the phosphor screen is in a substantially field-free region, thereby avoiding the pulling-off of the phosphor by a high field, and providing space for the mounting of antimony or alkali activation generators 4 and 5. If desired, a small potential difference may be maintained across the region bounded by the electrode 13, to increase the image intensification, by forming electrode 13 in two parts. Reference is also made to the use of the arrangement in a television camera in which the target further includes a scanned photosensitive storage layer (7, Fig. 2, not shown); in a tube in which the photocathode is replaced by a channel plate (10, Fig. 3, not shown); and in a tube having a diode array target with the diodes connected by wires to scanning timing circuits.
Patent GB-503153-A (GB)
Title: Improvements relating to motor vehicle lamps
IPC: F21V14/04
Filed: 1937-10-02
Abstract: 503,153. Vehicle lamps; directing. LUCAS, Ltd., J., LUCAS, O., and NEILL, R. L. Oct. 2, 1937, No. 26703. Divided out of 496,876. [Class 75 (iii)] A vehicle lamp mounting comprises an annular rubber diaphragm 8 and a rubber bush 2, integral or not with the diaphragm, having a metal tongue y secured by a spring m to a bracket x housing electromagnetic dipping means q. Specification 441,023 is referred to.
Patent GB-386926-A (GB)
Title: Improvements in or relating to the adjustment of ball valves and the like
IPC: F16K33/00
Filed: 1932-09-27
Abstract: 386,926. Ball-and-float valves. RUSH, A. R., 107, Rutterworth Road, and RUSH, S. R. G., 1, Chestnut Road, both in Northampton. Sept. 27, 1932, No. 26760. [Class 135.] To provide for the adjustment of water level in connection with a ball-andfloat cistern supply valve the float lever is made in two parts D, E connected by a bracket C having two inclined socket members A, B in which the lever parts can be adjusted and secured, such as by set screws F, G. If desired the arm D may incorporate the bracket C and holder B.
Patent GB-791458-A (GB)
Title: Improvements in metering devices for fuel supplied to furnaces
Inventor: LAUDER JOHN PATON
IPC: G01F1/00
Filed: 1955-09-20
Abstract: 791,458. Counting-apparatus; registering fuel feed. HODGKINSON (SALFORD), Ltd., J. Sept. 19, 1956 [Sept. 20, 1955], No. 26804/55. Classes 106 (1) and 106 (4). Apparatus for measuring the amount of fuel supplied to a boiler by means of a mechanical stoker comprises a constant speed motor A, Fig. 1, which, during the periods of operation of the stoker, drives a disc D which reciprocates a pawl arm P and pawl p which oscillates over the teeth t of a ratchet wheel R whereby rotary motion is transmitted by a shaft m to a counter M. The adjustment of the screw s bearing against a lug L of cam C causes variation in the number of teeth over which the pawl p oscillates and hence enables the counter M to register the supplied weight of fuels of varying density. An alternative arrangement is shown in Fig. 2, which also shows gearing capable of allowing an adjustment to the drive of the counter so as to allow for stokers whose fuel supply is variable such as for example stokers, wherein the raising and lowering of a guillotine controls the thickness of the firebed, rotation of the wheel W by means of the wire rope V causing change in the amount of movement of the rod e.
Patent GB-970843-A (GB)
Title: Improvements in or relating to apparatus for taking off suspension loops from screw conveyors
IPC: B65G33/02
Filed: 1963-07-08
Abstract: 970,843. Screw conveyers. O. OHRNELL. July 8, 1963 [July 9, 1962], No. 26995/63. Heading B8A. An apparatus for taking off, from a screw conveyer 1, a suspension loop 2 comprises a delivery bar 3 disposed on that side of the screw 1 towards which the loop 2 tends to move due to its frictional engagement with the screw 1. The distance of the bar 3 from the screw 1 increases in the direction of motion of the loop 2. The bar 3 may be turned to an inactive position (dot-dash, Fig. 2). Delivery bars may be provided on both sides of a screw arranged to be rotated in either direction (not shown).
Patent GB-1256330-A (GB)
Title: System for the transcutaneous inductive transmission of electrical signals generated in living organisms
Inventor: BECKER WINFRIED
IPC: A61B5/0488
Filed: 1970-06-04
Abstract: 1,256,330. Electro-medical apparatus. EUROPEAN ATOMIC ENERGY COMMUNITY. June 4, 1970 [June 19, 1969], No.27045/70. Heading GIN. Electric signals generated in a living body, e.g. E.M.G. signals, are transmitted outside the body by a transmission coil which includes a high permeability core 1 and a coil 2 whose ends terminate in gold electrodes 5, 6 which pickup the signals e.g. by implantation in a muscle. The transmitted signals are received by a coil disposed co-axially on the skin, the signals then being applied to an amplifier via filters. The transmission coil is covered by a plastics film 7.
Patent GB-410152-A (GB)
Title: Improvements in or relating to the manufacture of solutions of cellulose derivativesor conversion products
IPC: C08B11/20
Filed: 1932-09-29
Abstract: The solubility of cellulose derivatives or near conversion products of cellulose insoluble in water or aqueous caustic soda solution at ordinary temperatures, but which can be brought into solution in aqueous caustic soda by cooling below 0 DEG  C. until crystals of ice appear, and subsequently allowing the mixture to warm to atmospheric temperature, is increased by mixing the cellulose body, aqueous caustic soda, and a small quantity of a colloid substance or dispersing agent, preferably with high speed stirring.  Cellulose bodies which may be treated in this manner are the hydroxy-alkyl and methyl ethers of cellulose, and also the esters, for example, the sulphates, nitrates, and phosphates, containing a low percentage of the ester group.  Colloids or dispersing agents which can be used include alkyl aryl sulphonates, mineral oil sulphonates, aromatic sulphonic acids and salts thereof, monobenzyl alkaline sulphanilates, sulphite cellulose lye, alkali soluble cellulose, water- and alkali-soluble cellulose derivatives, condensation products of formaldehyde and naphthalene sulphonic acids, sulphonated fatty oils, sulphonated fish oils, prestabit oil, gelatine, glue, pastes or solutions of starch and starch-like substances, gums, turkey red oils, and alkylated polynuclear sulphonic acids and their soluble salts. The solutions made according to the invention may be filtered and used by the known methods for the manufacture of films, artificial threads, artificial horse-hair, cloth fillings, textile finishes, and the like.  Examples are given.  Specification 410,153 is referred to.
Patent GB-952697-A (GB)
Title: Improvements in or relating to pneumatic tape feeding apparatus
IPC: B65G23/00
Filed: 1962-07-13
Abstract: 952,697. Feeding webs. COMPAGNIE DES MACHINES BULL. July 13, 1962 [July 18, 1961], No. 27120/62. Heading B6B. [Also in Division G5] In a web feeding roller of the suction type, the rim 11 of the rotor 10 of the roller, keyed to a shaft 100, has longitudinal slots 12 extending parallel to the axis of rotation of the roller. A segmental shaped stator 20 has two peripheral chambers 22 and 21 connected to a suction line 26 and a pressure line 25 respectively, and is provided with a series of holes or openings 230, 231, 240, Fig. 4c (not shown), which allow the chambers 21, 22 to communicate with the interior surface of the rim of rotor 10. Interposed between the stator and the rotor is a grid 31 which can take up either of two positions relative to the stator, or in further embodiments (not illustrated) relative to the rotor. In the embodiment shown, Fig. 1, the grid 31 is adapted to slide in a direction parallel to the axis of rotation of rotor, relative to the stator, and is controlled through a rod 35 by an electromagnet 40. With the grid 31 in its extreme left position, as shown in Fig. 1, the openings to the pressure chamber 21 communicate through the openings of the grid 31, with the interior surface of the rim, while the openings to the suction chamber 22 are closed. With the grid 31 in its extreme right position, the openings to the suction chamber 22 communicate with the rim 11, while the openings to the pressure chamber 21 are closed. Figs. 4a, 4b and 4c (not shown) illustrated coplanar developments of the curved surfaces of the rim 11, the grid 31 and the stator 20 respectively. In a second embodiment, Figs. 5, 6, and 7 (not shown), the grid 31 has a rotary motion about the axis of rotation of the rotor, to either of its two positions.
Patent GB-1285691-A (GB)
Title: Improvements in and relating to pants for sanitary towels
Inventor: RICKARD CHARLOTTE I
IPC: A41B9/04
Filed: 1968-08-20
Abstract: 1285691 Sanitary pants KIMBERLEYCLARK CORP 20 Aug 1969 [20 Aug 1968 29 May 1969] 39862/68 and 27221/69 Heading A3V Pants for holding a sanitary napkin 30 are made of a fabric stretchable in all directions, the crotch of the pants having means to restrict transverse stretching over part of its length. The pants which may be of one- or multi-piece construction have a crotch portion 17 joining the front and back body portions 11, 12 to define leg openings 14 having stretchable bindings 15. The crotch portion 17, which may be of double layer construction, is gathered at 21 by inelastic stitching 22 and inelastic reinforcing tape 28 across its narrowest portion. Two or more strips of gathering and stitching may be employed with or without tape provided longitudinal stretching of the crotch portion is not substantially restricted: where only a single strip is used it may be located anywhere in the crotch portion but preferably closer to the front portion 11 than the back portion 12. The restrictive means may be a single loop of string or thread drawn around the central crotch area. Adhesive bonding may be used to obtain the restriction. A nylon buckle, spring clip or tape may be sewn inside the pants for securing thereto the sanitary towel.
Patent GB-1100997-A (GB)
Title: Refrigeration method and apparatus
IPC: F25D3/10
Filed: 1966-06-17
Abstract: 1,100,997. Refrigerators. CHEMETRON CORPORATION. 17 June, 1966 [1 July, 1965], No. 27249/66. Heading F4H. A chamber is refrigerated by vaporizing liquid nitrogen or carbon dioxide in two vaporizers 31 and 33 which are in thermal contact with the walls of the chamber, and passing resultant vapour from each vaporizer in thermal contact with the ceiling of the chamber and with the other vaporizer to assist in vaporization at the other vaporizer. Vapour from the vaporizer 31 passes through ceiling ducts 30, and around the vaporizer 33 and a header 36, and then through ducts 38, header 39 and ducts 42 to an exhaust port (45), Fig. 1 (not shown). The ducts 30, 38 and 42 and headers 36 and 39 are in thermal contact with metal walls of the chamber. An identical duct system leads from the vaporizer 33. Cold gas may be bled to the enclosure through vents V<SP>1</SP>. Each vaporizer comprises a flexible perforated tube 46 which is fed with liquefied gas and is located by spiders 50 in a rectangular section duet 47. The vapour ducts may be formed as grooves (66) in a layer of insulation (62) located against the interior metal wall (61) of the enclosure, Fig. 12 (not shown), or may be formed as grooves in the metal wall which are covered by an exterior layer of insulation (70), Fig. 14 (not shown), or may be formed as grooves in a metal plate located against the chamber wall, Figs. 13 and 15 (not shown).
Patent GB-728049-A (GB)
Title: Improvements relating to hop-picking apparatus
Inventor: HARRISON ROBERT VEALE
IPC: A01D46/02
Filed: 1951-11-21
Abstract: 728,049. Hop pickers. HARVESTEX HOPPICKERS, Ltd. Feb. 23, 1953 [Nov. 21, 1951], No. 27283/51. Class 58. Hop picking apparatus comprises a mechanically operated elongated element 23 with serrations along its length to admit hop stalks for severance, and which operates in or adjacent an opening 24 to which suction is applied for bringing the hops into engagement with the element and for drawing the picked hops through the opening. The element or cutter bar consists of a stem 1 enclosed in a tube 2 having annular grooves 3 cut therein. The tube is driven by suitable gearing from a shaft 9. Teeth 11 integral with the stem 1 correspond to the grooves 3, and during each revolution of the tube 2 the stem is reciprocated between positions wherein the teeth are exposed in the grooves and housed within annuli 13. The stem is reciprocated by means of cams 16 and 17 (and returned to position by a spring 18) which are so designed that reciprocation occurs during one.half only of each revolution of the tube 2. A cleaning comb 20 is mounted at the rear of the cutter bar. Fig. 3 shows an apparatus using several such bars 23, the hop bines being detachably secured to an endless conveyer 28. Fig. 4 shows a mobile form of apparatus having a common suction chamber 30 on a chassis 31. Sets of cutter bars 23 are on arms 33 driven by a shaft 34 and are in a housing 35 closed except for an opening 36, by means of which the bines are brought into engagement with the bars 23, and an inner opening which communicates with the chamber 30 wherein are housed suction fans 32. In modifications, the cutter bar need not be rotated ; the serrations 13 may be. replaced by separate discs on a tube ; and the cutter bars may be replaced by shafts having close-set circumferential serrations which will admit hop stalks. Specifications 720,265 and 722,185 are referred to.
Patent GB-481491-A (GB)
Title: Improvements in or relating to rotating dividers for grain binders and like machines
IPC: A01D63/02
Filed: 1937-10-08
Abstract: 481,491. Harvesting-machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. (International Harvester Co.) Oct. 8, 1937, No. 27339. [Class 6 (iii)] A divider for a binder or like harvesting-machine is made in two separately adjustable parts pivoted together the front part comprising a rotating helically ribbed member 9, 10 extending rearwardly from a point 12, and the rear part being formed as a stationary shield 29 protecting the gears 27, 28 driving the rotating member 9. The front end of the rotating member is mounted in a bearing in a shoe 6 pivoted to a forwardly extending narrow triangular frame 5 itself secured by a pivot 4 to the main frame 2. A bracket 14 also secured by the pivot 4 carries an upwardly extending pipe 15 within which a rod 18 carrying a forked member 19 may be adjustably secured by a clamp 17. The forked member 19 carries a pivot for a yoke 22 in which bearings 23, 24 for the driving shaft 25 and the shaft 11 of the rotating member 9 are respectively mounted. The shield 29 is supported by an extension 36 of the pivot pin for the yoke 22 but is given a further adjustment by being carried on a bracket 32 that can be clamped adjustably to this extension. The ribs on the rotating member may be covered by a shield when it is desired to use the device as a stationary divider. Specification 344,563 is referred to.
Patent GB-756286-A (GB)
Title: Improvements in or relating to a surgical fracture fixation device
IPC: A61B17/74
Filed: 1954-09-22
Abstract: 756,286. Fracture fixation appliances. PUGH, W. L., and PUGH, H. G. Sept. 22, 1954 No. 27347/54. Class 81(2). A fixation appliance for fractures of the neck of the femur comprises a tubular member for securing to the shaft of the femur and a nail, slidable therein, for driving into the head section of the bone. Frictional means between the nail and the tubular member ensures that the two bone parts are properly held together but allows gradual outward displacement of the nail which results from bone resorption. A flat plate member 16, Fig. 2, for securing to the femur shaft carries a tubular extension 18 which is passed into the neck of the femur. The tube 18 is provided with an internal keyway to receive a projection 24, Fig. 3, on a nail 25 which is a close fit in the tube and is thereby prevented from rotating. The leading part 10 of the nail may be finned or ribbed as desired and, when it has been driven in, it is held by frictional engagement of a spring ring 30, in a groove 28, with the inner face of the tube.
Patent GB-518110-A (GB)
Title: Improvements in or relating to tank cap protectors
IPC: B60K15/04
Filed: 1938-09-20
Abstract: 518,110. Fastenings. MALLUK, A. M. Sept. 20, 1938, No 27397. Addition to 495,344. [Class 44] [Also in Group XVII] A cap protector for the filling necks of tanks comprises an annular member 4 having a depending semi-annular wall 15 and a semi-annular hinged wall 16 that is locked in closed position by a latch 8<xx>. The latch support is slidably mounted on the underside of the plate 4 and is withdrawn against spring action by a stud on a key-operated rotary member disposed within a neck 5.
Patent GB-826037-A (GB)
Title: Thiophosphoric acid esters and a process for their production
IPC: C07F9/165
Filed: 1956-09-07
Abstract: The invention comprises thiophosphoric esters of formula <FORM:0826037/IV (b)/1> wherein R is alkyl or phenyl, A is C2-4 alkylene, and R1 is a carboxylate ester radical, the radical of an organic or inorganic ester of a hydroxyalkyl mercaptan or an alkylmercapto, arylmercapto, alkoxy or aryloxy radical, or, when R is phenyl, R1 may also be a hydroxyalkyl mercaptan radical or a tertiary aminoalkyl radical which may be heterocyclic.  They may be prepared by reacting O,O-diesters of thiophosphoric acid halides with alcohols of formula R1-CH2-S-A-OH in the presence of acid binding agents, preferably in an inert solvent.  Alternatively the alcohol may be reacted as an alcoholate.  Metal catalysts such as copper powder may be used. Temperatures of 0-250 DEG C. are mentioned.ALSO:Pesticidal compositions comprise thiophosphoric esters of formula <FORM:0826037/VI/1> where R is alkyl or phenyl, A is C2-4 alkylene, and R1 is a carboxylic ester radical, the radical of an organic or inorganic ester of a hydroxyalkyl mercaptan, an alkylmercapto, arylmercapto, alkoxy or aryloxy radical, or, when R is phenyl, R1 may also be an hydroxyalkylmercaptan radical or a tertiary aminoalkyl radical which may be heterocyclic.  Solid or liquid carriers may be used and other pesticides may be present.