baber/WOPTO huggingface dataset:
Patent GB-1509392-A (GB)
Title: Dialysis
IPC: C08J5/22
Filed: 1975-06-03
Abstract: 1509392 Ion exchange dialysis membrane RHONE - POULENC INDUSTRIES 3 June 1975 [4 June 1974] 23946/75 Headings B1X and B2E [Also in Division B5] A dialysis membrane comprises a) an anion exchange polymer b) a cation exchange polymer, both in the form of particles of diameter-5-500Á and c) a nonionic film-forming polymer binder of percentage weight not exceeding 50%, the polymers a; b and c being insoluble in water, a and b being insoluble in at least one solvent for c and each polymer having an ionic conductivity # and a permeability U to non - electrolytes such that #/U > 20 min. #<SP>-1</SP> cm<SP>-3</SP>. The anion exchange polymer may be a quaternised phenoxy resin, the cation exchange polymer a sulphated ethylene - vinyl alcohol copolymer or a sulphonated polyaryl ether sulphone and the polymer binder a thermoplastic polyolefin, e.g. an ethylene - vinyl alcohol copolymer with xylene as solvent. A mixture of at least one ionic and one non - ionic species may be fractionated by dialysing the mixture with another solution where these species are present in zero concentration or at a lower concentration than in the mixture, the dialysis membrane being as above. The ionic and non - ionic species may be inorganic salts, sugars, aminoacids or urea. Such a membrane may be prepared by casting a suspension of particles of quaternised phenoxv resin and of sulphated ethylene/ vinyl alcohol copolymer in an ethylene vinyl alcohol copolymer solution in xylene on a cellulose film drying, heating under pressure, cooling and immersing for I minute in DMF.
Patent GB-984643-A (GB)
Title: Improvements in fittings for hoses
Inventor: GUARNASCHELLI STEPHEN
IPC: F16L33/18
Filed: 1961-07-03
Abstract: 984,643. Hose fittings. TITEFLEX Inc. July 3, 1961, No. 24008/61. Heading F2G. A hose fitting assembly comprises a hose 32 having a wall made of resilient material, an outer fitting member 10 provided with a locking portion, e.g. a ring 36, having an axially - extending, screw - threaded passage 37 that screws over the outer surface of the hose, a nipple 30 that extends into the hose and holds the hose wall engaged with the screw-threads of the passage 37 to lock the hose against axial sliding movement in the passage, and an end element 20 secured to the nipple and forming a shoulder 28 that abuts the end of the hose and is spaced from the confronting end face of the ring 36. The shoulder, end face and outer member form a chamber and the end of the hose extends radially outwardly and inwardly as shown across the faces of the locking portion and shoulder to form a flexible gasket 46. The member 10 has a connecting portion including a screw-thread to hold the locking portion or ring and the shoulder in assembled relation and with the folded end of the hose therebetween. As shown the hose has a braided reinforcement which is secured between the complementary tapered surfaces of the member 10 and ring 36 when the members 10 and 20 are screwed together. The ring 36 has a peripheral portion 42 which engages behind the wall 18 of an annular groove 16 in the member 10. In a modification, the ring 36 is dispensed with and the member 10 has a screw-thread which engages the outer surface of the non-reinforced hose, and an opening which permits an operator to determine by inspection when the gasket 46 has been formed.
Patent GB-599405-A (GB)
Title: Improvements in holders for attachment to or for use as pockets
IPC: A41D27/20
Filed: 1945-09-18
Abstract: 599,405. Retaining articles in pockets. MACMICKING, J. M. Sept. 18, 1945, No. 24024. [Class 43] A holder for attachment to, or use as, a pocket is divided into compartments and formed as a rigid plastic or like moulding. As shown, internal partitions 5 form compartments 6 open at the bottom and having tapering walls in order to grip an object such as a pencil. Alternatively the partitions 5 may be fitted with blade springs to retain an object. Ribs 8, to protect the rims of spectacles, may be provided in the central compartment which has a closed bottom. The back wall extends above the mouth of the holder and may extend below the bottom of the front wall. The bottom of the holder may be fitted with soft material, e.g., felt, and a slot may be formed at the bottom of the back wall for cleaning purposes. The holder may be provided with projecting tabs at the top and bottom in order that it may be secured to a garment by pins or buttons, or it may be secured within a pocket by a U-shaped clip.
Patent GB-1307300-A (GB)
Title: Hip-joint prosthesis
IPC: A61F2/32
Filed: 1970-05-19
Abstract: 1307300 Hip-joint prosthesis F BAUMANN 19 May 1970 [23 May 1969] 24122/70 Heading A5R [Also in Division E2] A hip-joint prosthesis comprises a joint ball 1 and a joint pan 2 with a plurality of balls 4  therebetween. The space between the ball and pan is sealed and the ball I retained in the pan by an annular ring 3 and O-rings 5 and 6. The mobility of the joint may be altered by unscrewing or screwing up the ring 3 on the pan 2. The ball 1 plugs on to a pin for insertion in the femur. The ball 1 and pan 2 are preferably made of a Cr-Co-Mo alloy, the balls 4 of a harder material, and the O-rings of silicon rubber The wall thickness of the pan 2 preferably decreases continuously from its apex to its periphery. The joint may be lubricated using grease or polytetrafluoroethylene powder.
Patent GB-1395062-A (GB)
Title: Energy storage device
IPC: F03G1/00
Filed: 1972-05-23
Abstract: 1395062 Door-closer; damper FERAG AG 23 May 1972 [4 June 1971] 24213/72 Heading F2S An energy storage device for use as a doorcloser comprises an energy storage element 5, a pair of relatively movable supports 3, 4, said energy storage element acting upon a power take-off element 16 by means of said supports, said energy storage element being connected between said pair of movable supports so as to store and release energy as the supports move relatively to one another in opposite senses, said pair of movable supports forming the terminal elements of a power transmission in which the transmission ratio differs from 1 : 1, and wherein one of the said supports includes means 11 for producing, in a predetermined phase of operation of the device, a change in the transmission ratio, so as to change the force applied to the power take-off element by the energy storage element by means of said supports. A cable 9 attached to the drum 3 at any one of points 8 (to adjust tension) passes over a roll 10 to the drum 4 where it is anchored at the end 13 of a groove 12. An interwinding groove 14 carries the cable 16. The spring 5 seeks to rotate the drums in the directions P 3 , P 4 . If the cable 16, Fig. 2, is pulled opposite the direction P 16 , the drum 4 rotates and the cable 16 passes off the ratio-change projection 11 and starts to unwind from the drum groove 14 (position 11<SP>1</SP>). The cable 9 starts to unwind from the drum when the projection 11 reaches the position 11<SP>11</SP>, the cable being wound on to the drum 3, its speed being less than that of the drum 4 since it is of larger diameter. The tension of the spring 5 is thus increased. This increase is quite small as, thus, is the decrease when the cable 16 is retracted. Since the leverage of the crank-pin 11 passes over-centre at the end of a retraction movement, the force on the cable is increased. The forces exerted at the position of rest can be set by a stop or by moving the crank-pin. In use as a door-closer, the support 1 is fixed to the door and the cable end 16 to the frame or vice versa. A damper is unnecessary. Damper.-If a damper is provided, it is constituted by a rubber hose wound spirally around the shaft 2 beneath the drum 3. During dooropening, the hose fills with air through a flapvalve and empties, during closing, through a throttle. The cable 16 could then be replaced by a conventional toggle lever mechanism.
Patent GB-1354183-A (GB)
Title: Photochemical reactions
IPC: B01J19/12
Filed: 1971-04-19
Abstract: 1354183 Preparation of cycloalkanone oximes AQUITAINE TOTAL ORGANICO 19 April 1971 [17 March 1970 21 Jan 1971] 24436/71 Heading C2C [Also in Division B1] In a photochemical reaction; particularly one in which an alicyclic oxime is prepared by reacting a cycloalkane (e.g. cyclodedecane) in the liquid state or in solution with nitrosyl chloride in a liquid phase containing sulphuric acid, the formation of deposits on the transparent surface of the reactor is prevented by heating that surface to a temperature higher than that of the reaction mixture (but not higher than 95 C.) to reduce the viscosity of the material adjacent to the surface. The reactants are introduced at 7 into an annular reactor 1 arranged around a high-pressure mercury lamp 2. A heat-transfer fluid is passed between the lamp and the inner wall of the reactor and is circulated by a pump 6 through a heat exchanger 5. The reaction mixture is circulated by pump 8 through a heat exchanger 9. Gases are released at 10 and reaction mixture with product is withdrawn at 11, the product being separated from the organic reactant by centrifuging at 12 and part of the latter being recycled.
Patent GB-384716-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L23/028
Filed: 1931-09-02
Abstract: 384,716. Pipe joints. MERCER, E., 7, Alexandra Terrace, and PANKHURST, V. H. HAYES-, The Parade, both in Exmouth, Devon. Sept. 2, 1931, No. 24605. [Class 99 (i).] A pipe is joined to a plate 7 or other fitting by a split coned ring 2, an internally coned ring 5 bearing on the plate, a clamping member 8 and studs 12. A packing ring 9 is inserted between the ring 5 and the member 7 and a packing ring 11 may be inserted in an inner recess in the ring 5. In addition the pipe end may be flared with packing between it and the split ring.
Patent GB-922558-A (GB)
Title: Improvements in or relating to plug or socket connectors
Inventor: POOLE DONALD FREDERICK CHARLES
IPC: H01R13/631
Filed: 1958-07-31
Abstract: 922,558. Two-part couplings. ENGLISH ELECTRIC CO. Ltd. July 17, 1959 [July 31, 1958], No. 24677/58. Class 38 (1). Limited self-aligning movement of a socket connector 10 with respect to a bracket 12 is permitted by a resilient mounting consisting of a circular section rubber or like ring 14 located in an annular space formed between flanges 10g, 12a on the socket housing 10b and bracket respectively, rotation of the housing with respect to the bracket being prevented by an interengaging key 12h and recess. A contactcarrying body 10a is positively located in the housing by projections 10c which engage slots in the housing. The plug connector 11 for engagement with the socket may be similarly mounted with respect to a bracket 13.
Patent GB-586540-A (GB)
Title: Improved process for degreasing hides and skins
IPC: C14C1/08
Filed: 1944-12-11
Abstract: 586,540. Degreasing hides and skins. BURCHILL, J., COCKBAIN, E. G., McLAREN, K., PARRY, E. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 11, 1944, No. 24769. [Class 76] Hides and skins are degreased either before or after tanning by treatment with an aqueous liquor containing an emulsifying agent obtained by condensing an alkyl phenol having a straight chain or branched alkyl group of from six to twelve carbon atoms or two or more alkyl groups of four or five carbon atoms, with at least five and not more than twenty molecular proportions of ethylene oxide, for example as described in Specifications 380,431 and 470,181, [Group IV]. Suitable emulsifying agents may be formed from p-octyl phenol and 7-9 molecular proportions of ethylene oxide, from a mixture of p-(di-iso-butyl) phenol and 2:4 di-tert-butyl phenol with eight molecular proportions of ethylene oxide, from an octylated mixture of cresols and 9-11 molecular proportions of ethylene oxide, and from a dodecylated mixture of cresols and 12-14 molecular proportions of ethylene oxide. The weight of liquor used is preferably not more than 200 per cent. of the weight of the skins, and the proportion of emulsifying agent may be 1-5 to 5 per cent. based on the weight of the skins. Treatment before tanning may be carried out at 25-35‹C. and the liquor may include an inorganic salt, such as sodium chloride, sodium sulphate, or potassium chloride, to depress swelling. In the treatment of tanned skins temperature up to 60‹C. may be used, and the liquor may contain formic, acetic, or sulphuric acid to reduce the loss of tanning material. Octyl alcohol, pine oil, or Turkey Red Oil may be added to the liquor as foam depressants. Treatment may be effected in a rotating drum, the skins then being washed with water which may contain the additives referred to above.
Patent GB-738541-A (GB)
Title: Improvements in the preparation of aryldichlorosilanes
IPC: C07F7/12
Filed: 1953-09-09
Abstract: Diaryldichlorosilanes are prepared by heating in the presence of a Friedel-Crafts type catalyst a monoaryl-dichlorosilane having one hydrogen atom attached to the silicon atom.  Suitable catalysts are aluminium and boron chloride.  The catalyst may be present in an amount from 0.0001 per cent to 5 per cent by weight of the silane reactant.  The preferred reaction temperature using aluminium chloride is at least 50 DEG  C. and using boron chloride at least 100 DEG  C.  In the examples diphenyldichlorosilane is prepared.ALSO:Dichlorosilane is obtained by heating an aryldichlorosilane having one hydrogen attached to the silicon atom, e.g. phenyldichlorosilane, in the presence of a Friedel-Crafts type catalyst, e.g. aluminium or boron chloride.
Patent GB-367756-A (GB)
Title: Improvements in and relating to soldering by means of an electric arc
IPC: B23K9/067
Filed: 1930-08-20
Abstract: 367,756. Uniting by fusion. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Soc. Generale de Constructions Electriques et Mecaniques Alsthom; 146, Avenue des Champs Elysees, Paris.) Aug. 20, 1930, No. 24944. Convention date, Aug. 20, 1929. Void [Published under Sect. 91 of the Acts]. [Class 83 (iv).] Electric arc welding is effected by an arc produced between the work and a metal electrode of very high melting point, such as tungsten, without supplying additional metal to the joint. The arc between the electrode 3 and the parts 1, 2 to be welded may be maintained and also started without bringing the parts into contact by an auxiliary spark or arc. For this purpose a condenser 8 in series with an auxiliary spark gap 9 across the terminals of the arc may be used, the condenser being charged by an auxiliary transformer 10. In another form an auxiliary electrode may be used connected either to one of the poles of a discharge device such as described or to a transformer fed either from the supply 4 or by another alternating current supply. The other pole is connected either to the electrode 3 or to the work. A hood 6 supplied with gas may surround the electrode to provide a neutral or reducing atmosphere, or the gas may be supplied through an inclined nozzle arranged in front of the electrode. The electrode, together with the hood or nozzle may be mounted in a carriage traversed over the joint by an electric motor, and the electrode may be oscillated across the joint. The electrode may be fed towards the work by a clockwork or electric motor, the rate of feed being, if necessary, automatically dependent on the output of the arc or on the tension at its terminals. The feed may be stopped automatically by an electromagnetic brake when the supply to the carriage traversing motor is cut off, or a relay acting as soon as the current to the arc is cut off may be used for this purpose.
Patent GB-843580-A (GB)
Title: Improvements in radiator blinds or curtains
IPC: F01P7/10
Filed: 1958-08-05
Abstract: 843,580. Radiator blinds. TORGNER, J. G. Aug. 5, 1958 [Oct. 30, 1957], No. 25044/58. Class 64(3) Means for raising and lowering a radiator blind 1 which is wound upon a roller 3 and is fixed at its lower end, e.g. by a bar 2, comprises a cord or chain 5 which is wound on to a reduced diameter 4 of the roller and in the opposite direction to the winding of the blind 1 (see Fig. 2), so that upon exerting a pull on the cord or chain 5 the roller is positively set. in rolling motion along the face of the radiator 10 in the direction of the pull while unrolling the blind, whereby the unrolling of the blind may be effected without the use of springs and no metallic or other means are required for mounting the roller. The reduced diameter 4 may be positioned at the ends of the roller or (as shown) at the centre.
Patent GB-671026-A (GB)
Title: Improvements in powder distributors, in particular for agricultural purposes
IPC: A01M9/00
Filed: 1950-10-13
Abstract: 671,026. Manure distributers. ALLIENNE, V. G. R. Oct. 13, 1950 [Oct. 14, 1949], No- 25067/50. Class 6(i) An agricultural powderblower having one or more foldable, transverse, hollow booms 13, 13a is characterized in that the booms taper longitudinally and are provided internally with baffles 28 which direct the air-stream through adjacent orifices 27. The powder is contained in a hopper 1 the lower part 5 of which is surrounded by a ring 4 connected to it by springs 6. The ring carries a stud 3 engaged periodically by a projection 2 on a shaft 9 to impart shocks to the ring 4, and indirectly, to the hopper base 5. The ring 4 is formed with a sieve 8 at its bottom and the hopper base 5 includes an internal grid supporting the powder. The ejected powder is sucked into the casing 10 of the blower-fan which is provided with an outlet both above and below the impeller shaft 9, each leading to one of the booms. To equalize the powder supply to the two booms, a butterfly valve 44 is provided at the fan inlet. The boomsections are foldable about shafts 14, 14a and are strengthened by adjustable struts 16, 17. The booms are of rectangular crosssection and have two convergent lines of apertures 27 in their bases 23, each aperture being backed by an upstanding baffle- 28. The ends 29 of the booms are open. Adjustable fabric wind-guards, Fig. 3, (not shown), hang on each side of the booms. Where only one lateral boom is carried, a wheel, such as 20, may be used to support it intermediately of its length. A seat 21 is provided for an operator and the machine is towed by an adjustable drawbar 50.
Patent GB-993296-A (GB)
Title: Door spring and check
IPC: E05F3/10
Filed: 1963-06-24
Abstract: 993,296. Door closers. J. I. ADAMS. June 24, 1963, No. 25093/63. Heading E2M. In a door closer of the type shown the diecast housing 1 has a removable insert comprising a cross-plate 30 which acts as an abutment for the spring or springs 8, 9 and a pair of arms 31, 32 which extend from the cross-plate towards the spindle 2 and guide and support the fluid check mechanism 10, 11. The insert is preferably made of a metal such as iron or steel of greater strength than that of the aluminium housing. Specification 934,236 is referred to.
Patent GB-1161112-A (GB)
Title: Improvements in or relating to Pulse-Width Modulators
Inventor: THOMPSON LIONEL RAYMOND FRANK
IPC: G06G7/161
Filed: 1965-06-14
Abstract: 1,161,112. Integrators. HAWKER SIDDELEY DYNAMICS Ltd. 22 July, 1966 [14 June, 1965], No. 25099/65. Heading G4G. [Also in Divisions G3, H2 and H3] A pulse-width modulator comprises an integrating amplifier 1 having feedback around a hysteretic switch 13 so as to be self-oscillating and having reactance in the feedback path so that the average value of the pulse-width modulated output is a function of the integral of the input. Proportional and integral control circuits.- Fig. 11 shows a circuit for energizing a generator or motor field winding 99 with a voltage proportional to the magnitude and time integral of input voltages Va, Vd. Integrating amplifier 1 provides a ramp output at 3, the slope of which is dependent on its effective input and continues to rise or fall until a predetermined voltage is reached when the state of a Schmitt trigger or other bi-state device 13 becomes reversed so that symbolic contacts 96 alter the effective input to amplifier 1 such that it integrates in the -opposite direction. This sequence continues at a frequency and with a mark/space ratio dependent upon the magnitude of the effective input to amplifier 1. It is shown that if a capacitor C 2  is connected between symbolic contacts 96 and the inverting input to amplifier 1, the mark/space ratio and hence the average value of the output from device 13 has both proportional and integral components. SCR 97 is turned on by the leading edge of each positive half-cycle from 13, initiating current in winding 99; commutating SCR 107 is turned on by each negative halfcycle from device 13, extinguishing 97 via capacitor 102. The average current in winding 99 is thus dependent upon the magnitude and time integral of the input. In a servomechanism, and additional feedback path 108 is provided to control the magnitude of Va in response to the demanded change in Vd. The proportional term may be omitted from the output if the input signal is supplied to the junction of R 2  and C 2  (Fig. 10, not shown). In Fig. 12 (not shown), C 2  is replaced by a transformer the primary of which is fed with different values of current in the two states of device 13.
Patent GB-272739-A (GB)
Title: Improvement in spark plug
IPC: H01T13/54
Filed: 1926-10-11
Abstract: 272,739. Marks, E. C. R., (Champion Spark Plug Co.). Oct. 11, 1926. Sparking - plugs. - Two seatings 11, 12 are provided in the plug casing for engagement by corresponding shoulders on the insulator, gaskets 16, 18 being interposed at either or both places according to the conditions under which the plug is to be used. One seating 11 is situated in that part of the plug casing which engages the cylinder, and the other 16 outside that zone.
Patent GB-254299-A (GB)
Abstract: 254,299. Deutsche Gasgl³hlichtauer Ges. June 27, 1925, [Convention date]. Respirators.-In devices for indicating the presence of moisture or other impurities or additions in gases, such as air passing through a breathing filter, or for controlling devices in such presence, the moisture &c. acts directly upon a test substance which crumbles or disintegrates due to the alteration in its chemical or physical state and not to fusion or destruction by heat, and which thus causes or permits the mechanical actuation of the indicator &c. A brick of test substance may be mounted in the breathing filter in or behind catalysts for the oxidation of carbon monoxide to indicate when the catalysts are becoming inoperative due to absorption of moisture, the brick crumbling due to exposure to water vapour at a pressure above that harmful to the catalysts and in quantities sufficient to render the catalysts inoperative. A brick of compressed calcium carbide powder may, on crumbiing, close a spring-loaded valve and warn the user of the filter by a change in the air pressure. The Specification as open to inspection under Sect. 91 (3) (a) comprised also a breathing filter with a brick of hygroscopic substance. This subject-matter does not appear in the Specification as accepted.
Patent GB-1260559-A (GB)
Title: Improvements in or relating to single-cylinder circular knitting machines
Inventor: FLEISCHMANN HARDI
IPC: D04B9/46
Filed: 1969-05-19
Abstract: 1,260,559. Knitting-machines. FEINSTRUMPFWERKE "ESDA" VEB. 19 May, 1969, No. 25447/69. Headings D1C and D1K. A circular stocking machine is provided with a half-dial 3 pivotable downwards to transfer sinker loops from an arc of toe needles to an arc of instep needles by means of pairs of co-operating transfer bits 4, 4a. One bit of each pair with an upwardly directed hook is advanced to engage a loop while the other is retained by a tooth 20. The bit is then retracted to hold the loops in the hooks. The dial axis carries a pinion 12, meshing with a rack 16 whose upper end 14 can be urged upwards by a spring 15, but is normally depressed by a member 18. When the member is withdrawn the dial inverts into the transfer position as knitting of the toe proceeds. The dial cam is raised during inversion to avoid fouling the bit butts; the dial may also be raised for clearance. In the transfer position the instep needles are raised between splayed parts of the bits to receive the loops.