baber/WOPTO huggingface dataset:
Patent GB-1508656-A (GB)
Title: Process for the manufacture of hydrophilic polyolefin fibres
IPC: D01D1/02
Filed: 1975-05-16
Abstract: 1508656 Paper comprising hydrophilic polyolefin fibres HOECHST AG 16 May 1975 [18 May 1974] 20856/75 Heading D2B [Also in Division C3]  Paper is produced from hydrophilic polyolefin fibres which contain an inorganic pigment produced by flash evaporating a superheated suspension which is at least under autogenous pressure and which comprises an hydrophobic inorganic pigment and an emulsion of a solution of a polyolefin in a solvent which is a hydrocarbon or chlorinated hydrocarbon having a boiling point low enough to permit superheating and flash evaporation of the solvent and a critical temperature high enough to ensure that the solvent remains in the liquid phase on the high-pressure side of the nozzle used in the flash-evaporation step, and an aqueous solution of a hydropholisation agent for the polyolefin. The polyolefin may be a polyethylene having a density of 0.93-0.97 gm/cm<SP>3</SP> or a polypropylene having an atacity of 0-25%. The hydrophilisation agent may be polyvinyl alcohol. Suitable solvents to be used are hydrocarbons (C 5-7 ) and chlorinated hydrocarbons (C 1-2 ). The temperature of the suspension may be 110-200C prior to flash evaporation and the pressure in the flash evaporation zone may be 10-1500 mm Hg. The pigment particles may be smaller than 50 microns and hydrophobisation may be carried out with a mono- or poly-basic organic acid (C 10 -C 50 ) or an organic amine or organo ammonium salt (C 6-20 ). The pigment may be soot or a silicate, aluminate, carbonate or oxide. In Examples 1 and 2 the polyolefin is polyethylene, the pigment hydrated aluminium silicate and the solvent is hexane and cyclohexane. In Example 3 polypropylene is pressed into fibres using the same hydrophobized pigment as Example 1 and 2 and as solvent isopentane.
Patent GB-485351-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/02
Filed: 1937-07-29
Abstract: 485,351. Frictional pocket igniters. FLORMAN, I. July 29, 1937, No. 21067. Convention date, Nov. 13, 1936. [Class 75 (iii)] The friction-wheel 38 and a spring-controlled operating pawl 42 are mounted in a frame 34 on the lower end of a flint tube 28 carried by a slidable cover A so that, on raising the latter, the pawl is rotated by engagement with a spring tongue 56 on the body B until it is released therefrom and rapidly returned by its spring for operating the wheel 38 to ignite the wick 14. The cover A is provided with a wick-cap 26 and a pin 60 for limiting its opening movement. The body B comprises a fuel chamber 6 with an extension 16 terminating in a top ring 18 so as to leave a space 20 for obtaining access to the wick. The fuel chamber is closed by a detachable cap 4, secured by a screw 8, and is provided with a filling plug 62 at the upper end. The wick is preferably formed of a rigid, porous material, such as meerschaum.
Patent GB-261484-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1925-08-22
Abstract: 261,484. Automatic Telephone Manufacturing Co., Ltd., (Automatic Electric Co.). Aug. 22, 1925. Automatic and semi-automatic exchange systems.-Incoming selectors having two sets of wipers are available in common to subscribers and trunk operators, the subscribers being able to make use of only one of the sets. The other set is brought into action by a trunk operator who has been unsuccessful in setting up a connection over the normal path and gives access over second selectors of ordinary type to trunk-offering connectors which are arranged to ring the line. provided the operator presses a ringing key, when it becomes idle. Cord circuit O and incoming selector P, Figs. 1 and 2. When the calling plug P1 is inserted and 'the dialling key K1 is thrown, sleeve relay 12 pulls up and locks itself. In the distant selector, line and release relays 36, 84, pull up and the selector is operated in known manner to extend the call over wipers 64 - - 66. If the subscriber is busy, the operator momentarily withdraws the plug to release the switch chain, and before dialling again, presses the key E2 to unbalance the differential relay 34. Wiper-changing relay 50 thereupon pulls up and locks itself. Trunk-offering connector H, Fig. 3. This responds to the tens digit in the usual way. The units digit is repeated to relay 133 and magnet 140 in series and to relay 147 in parallel with these. Relay 147 disconnects the talking wipers and energizes ringing-cut-off relay 121 which locks up. If the line is still busy, relay 129 pulls up and locks itself to the c-wiper and the relapse of relay 147 energizes reversing relay 100 over 117, 124. 142. When the dialling key is restored therefore the polarized relay 11 is not energized and the lamp L' remains dark. If the line becomes idle, relay 129 is released and relay 139 pulls up and locks itself and relay 100 is released, causing the lamp L<1> to glow. The operator can talk to the local connection but cannot break it down. Ringing current. After informing the wanted party of the trunk call the operator depresses key K2 to unbalance relay 106 which unlocks relay 121. Relay 100 falls back and lamp L<1> glows. When the wanted party hangs up the relapse of relay 129 and energization of relay 134 allow ringing current to go out over relay 121. When the call is answered, relay 121 locks up and reversing relay 100 which now acts as a back bridge relay extinguishes the lamp L<1>. It is necessary for key E2 to be pressed to initiateringing even if the line is already idle. Modification using separate cords. Wiper changing in the incoming selector may be effected automatically by plugging in a special cord having a normal battery connection to the a-wire. This battery connection would then be cut off by a. relay energized by dial off-normal springs and looked under control of relay 12.
Patent GB-488061-A (GB)
Title: Improvements in or relating to thermostatic regulators
IPC: G05D23/13
Filed: 1937-07-30
Abstract: 488,061. Thermostatic mixing-valves. SADLER, A. L. (Leonard-Rooke Co.) July 30, 1937, No. 21098. [Class 135] A thermostatic mixing regulator for hot and cold fluids comprises a mixing chamber 31, opposed inlets 21, 22 for conducting the hot and cold fluids to the mixing chamber, and a valve unit in the form of two oppositely disposed conical closure members 32, 33 which differentially control the inlets when reciprocated by a coiled thermostat member 46 provided with means to convert its rotary movement into rectilinear movement of the valve unit. The regulator shown in Figs. 3, 4 comprises two casing parts 15, 16 clamped together to form a housing for the spiral thermal strip 46 secured at its outer end to an arm on a spindle 47 mounted in the cover 16. The inner end of the spiral 46 engages a slot in a rod 63 rotatably supported in the casing part 15 and in the end of the spindle 47. The latter carries an external handle and a setting pointer co-operating with a scale on the cover 16. The supply pipes 23, 24 for the hot and cold fluids and the outlet pipe 69 for the mixture are connected to the part 15, the two former leading to chambers 25, 26 whence the fluids pass through valve seat members 29, 30 into the mixing chamber 31. The two closure members 32, 33 each have parts 40, 41 with different degrees of conicity, and are united by an intermediate bar 35. Each closure member has a guide stem 36. The valve and its seats are removable through openings closed by plugs 44, 45. The shoulders formed by the opposed faces of the closure members are engaged by an arm 66 on the rod 63. In a modification, Fig. 9, the two closure members are formed as double beat valves so as to be unaffected by the supply pressures. The four valve beats 81 ... 84 seat on aligned bushes 76 ... 79. The fluid passing the outer valve parts 81, 84 passes to the mixing chamber 85 by ducts 86, 87. In further modifications, the valve has a transverse slot but no reduced part and is supported and guided by a semicylindrical recess or saddle in the part 15 and may have closure parts with stop shoulders thereon.
Patent GB-705050-A (GB)
Title: Improvements in and relating to magnetic fluids
IPC: H01F1/44
Filed: 1952-08-22
Abstract: 705,050. Magnetic compositions. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 22, 1952 [Aug. 23, 1951], No. 21121/52. Class 38 (2) A magnetic fluid suitable for use in magnetic clutches comprises a suspension of magnetic particles, e.g. of carbonyl iron between 2 and 100 microns in size or of iron oxide, in a liquid carrier of natural or synthetic oil to which is added a small proportion of water soluble alcohol, mercaptan, ether, amine or amide which is insoluble in the carrier. This coats the particles so that their tendency to settle is markedly reduced. The carrier is preferably a lubricant and numerous examples are given of suitable mineral oils, mixtures of mineral oils and fixed oils and of synthetic lubricating oils. Many examples are also given of materials suitable for. coating the particles in such carriers. Small amounts of antioxidants, corrosion inhibitors, extreme pressure and anti-wear agents may be added.
Patent GB-571457-A (GB)
Title: Improvements in the manufacture of synthetic rubber-like materials and in abrasive articles embodying such materials
Filed: 1943-12-17
Abstract: A composition, which may be used as a bond for abrasive articles, sheeted, moulded or attached to fabric or metal, consists of the vulcanization product of a mixture of a synthetic rubber-like material which will vulcanize with sulphur to a state comparable to hard rubber, sufficient sulphur to enable this vulcanization to take place, and a synthetic rubber-like material which will cure to a soft, but not to a hard, rubber-like substance.  The hard, rubber-like material may be prepared from copolymers consisting of a major proportion of butadiene with a minor proportion of a monovinyl compound such as styrene, alkyl styrene, acrylic nitrile or alkyl-acrylic nitrile to which is added about half its weight of sulphur.  The soft, rubber-like material may be polymerized chloroprene, copolymers of a major proportion of isobutylene with a minor proportion of a diolefine such as butadiene, 2-methyl butadiene, 2,3-dimethylbutadiene or pentadiene, or the olefine polysulphide plastic known under the Registered Trade Mark of "Thiokol."  The preferred proportions of the two types of synthetic materials are from 1 : 5 to 5 : 1 parts by weight.  Antioxidants, accelerators, such as diphenyl guanidine and curing agents, such as magnesium and zinc oxides, may also be added.  In examples of the preparation of abrasive articles such as grindingwheels, 80 parts of abrasive grains such as aluminium oxide or silicon carbide are mill mixed with 20 parts of the mixed rubber-like materials and the resultant mass sheeted out to the desired thickness and then shaped either before or after curing, for example, at 50 pounds steam pressure for 3 hours.  Specification 523,248, [Group IV], and U.S.A. Specifications 1,890,191, 1,938,730, 1,950,432, 1,973,000 and 2,216,044 are referred to.
Patent GB-253390-A (GB)
Title: Improvements in or relating to reservoir brushes
IPC: A46B11/02
Filed: 1925-08-24
Abstract: 253,390. Kattell, S. M. Aug. 24, 1925. Piston apparatus for discharging receptacles. - In a reservoir brush the paste is introduced into the handle through a tubular screw which serves to advance the piston. The brush comprises a tube 14, rotatable in bearings 16, 17 in the hollow handle 12 and having a screwthread 15 for attachment of the collapsable container indicated in dotted lines from which the paste passes by holes 19 into the handle. The tube 14 is cleared by insertion of a pusher-rod 30 which is secured in the tube by a screw-thread 32. On rotating the tube 14 by the knob 31 on the rod 30, the piston 20 screwed on the tube expresses the paste through a duct 26 in a sliding sleeve 22 on to the outer end of the bristletuft.
Patent GB-934236-A (GB)
Title: Door spring and check
IPC: E05F3/10
Filed: 1961-06-13
Abstract: 934,236. Door closers. J. I. ADAMS. June 13, 1962 [June 13, 1961], No. 21330/61. Class 65(1). [Also in Group XXXII] In a door closer comprising a vertical spindle 2 connected to the door and carrying a cam 4 which co-operates with either the piston 10 or cylinder 11 of the fluid dashpot, the cylinder has a circumferential tapered groove 18 in that portion of its inner surface which is covered by the piston and a fluid outlet 14 (not shown) in the region of maximum cross-section of the groove and the piston has a groove 17 for the passage of fluid from the cylinder space 16 to the groove 18, means being provided for adjusting the checking action by altering the relative positions of the piston and cylinder about their axes. In the embodiment described the cylinder has a roller 12 which is held against the cam by a spring 13, and the adjusting means comprises a plate 20, Fig. 5, with a spiral face thread 21 which engages a toothed cylindrical portion 19 of the piston. An extension 22 on the plate can be turned from outside the cover 23 of the closer. The housing 1 may be die cast in aluminium or other suitable metal, an iron or steel insert with arms 31, 32 to guide and support the dashpot and a plate 30 to act as an abutment for the door closing springs 8, 9 being provided. A further steel insert 29 (not shown) is provided as a bearing for the spindle 2 and cam 4. The springs 8, 9 bear upon a slide 7 having notches engaged by eccentric pins 5, 6 mounted on the spindle. The groove 17 may be parallel to the piston axis or inclined, as shown.
Patent GB-913708-A (GB)
Title: Apparatus for melting and casting mouldable material
IPC: B41B11/82
Filed: 1961-06-13
Abstract: 913,708. Ingot-casting machines. HAMMOND MACHINERY BUILDERS Inc. June 13, 1961 [July 5, 1960], No. 21361/61. Class 83 (1). Apparatus for melting and casting mouldable material comprises a melting pot supported on the upper end of a base frame, a mould supported on the base frame directly below the melting pot for rotation about a substantially horizontal axis, a discharge pipe extending downwardly from the melting pot, a spout mounted on the discharge pipe and extending into the space between the melting pot and the mould, the spout being movable in a substantially horizontal plane and relative to the discharge pipe, and a valve for controlling flow of molten material into the spout. In a machine for casting ingots of printers' metal for linecasting machines, the gas-heated melting pot 18 is mounted in a frame 11 about a mould 38 having cavities 42, 43 on opposite faces and rotatable about a horizontal axis by means of a handle 47 to bring either face uppermost and eject cast ingots 121, Fig. 1. The mould is locked in either operative position by spring- loaded, hooked arms 50, 51. A discharge pipe 61 from the pot 18 carries a spout 84 rotatably mounted thereon so that, by means of a handle 113 it may be aligned with any chosen mould cavity and vertically moved against spring pressure to open a valve 98 and allow metal to flow from the pot into the spout and thence to the mould. The spout is spring urged to a central position and is engaged by the mould during its rotation and moved out of the way thereof.
Patent GB-409652-A (GB)
Title: Energy saving method of air drying and means therefor
IPC: F26B21/08
Filed: 1932-07-29
Abstract: 409,652. Ventilation. WACHTER, S., 171, Thiersteiner Rain, Basle, Switzerland. July 29, 1932, No. 21363. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 2, 1932]. [Class 137.] In a ventilating system, dry outgoing air is cooled and then utilized to cool and dehumidify warm humid air entering the building. Relatively dry vitiated air withdrawn from a room q enters a chamber b where it is cooled to its dew point temperature and then passes to the outer atmosphere by way of one passage d of a heat exchanger. The other passage l is separated therefrom by a thin porous wall e. Entering fresh humid air from outside is cooled to its dew-point temperature in a chamber j and then enters the passage l of the heat exchanger where it is further cooled by the cold outgoing air and deposits moisture on the porous wall e. This moisture is absorbed by the outgoing air which is gradually warmed in its passage through the exchanger. The entering air may be further cooled in a chamber o.
Patent GB-213985-A (GB)
Abstract: 213,985. Marks, E. C. R., (U.S. Industrial Alcohol Co.). Jan. 11, 1923. Liquid - meters. - Two streams of liquid to be mixed together in about equal volumes are passed through separate measuring tanks 6 in which the liquid is supplied by a central inlet pipe 8 terminating in a container 9 with lateral discharge spouts 10, 11. The liquid passes down a cylinder 12 with a vertical slot 13 on the side of which is marked a scale 14 indicating the rate of flow.
Patent GB-1484612-A (GB)
Title: Composite film suitable for use as an ion exchange membrane in electrolysis
IPC: C25B9/23
Filed: 1975-05-20
Abstract: 1484612 Laminates E I DU PONT DE NEMOURS & CO 20 May 1975 [21 June 1974] 21578/75 Heading B5N [Also in Division C7] A composite ion-exchange polymer film comprises pendant sulphonyl groups in ionexchangeable form, each attached to a C atom to which at least one F atom is also attached, not more than 1/3 of the thickness thereof comprising polymer (i) which has an EW at least 250 greater than polymer (ii) comprising the remainder of the film. The film is used with polymer (i) facing the cathode in conventional diaphragmcell chlor-alkali production. Polymer (i) may have an EW no more than 2000 and polymer (ii) an EW of 1000-1500. The membrane may comprise a copolymer of an ethylenically unsaturated fluorocarbon, e.g. TFE with an unsaturated fluoro-sulphonyl compound of formula CF 2 =CFORfSO 2 F where the ether link is optional and Rf is a bivalent C 2-8  perfluoro radical with or without ether linkages, e.g. CF 2  = CFOCF 2 CF(CF 3 )OCF 2 CF 2 SO 2 F, and wherein the SO 2 F groups are subsequently converted to ion-exchange form such as a sulphonamide or sulphonic acid or salt group. The ion-exchange groups of polymers (i) and (ii) may be the same or different. A reinforcement of fabric of fluorinated resin, glass or quartz may be embedded in the polymer (ii). A laminate with a PTFE cloth is disclosed.
Patent GB-136908-A (GB)
Title: Improvements in and relating to Portable Planers.
Inventor: KRABER GEORGE LOGAN
IPC: B27C1/00
Filed: 1918-12-23
Abstract: 136,908. Kraber, G. L. Dec. 23, 1918. Planing; cutters.-A portable wood-planer comprises a body a supporting a motor or turbine f having a vertical shaft on which the cutter e is secured, and a sole-plate d connected to the body by pivoted arms c arranged so as to cause a slight divergence between the sole-plate and the body, thereby slightly tilting the cutter shaft to cause the oppositely-disposed blades e' to cut and rest alternately and so remain comparatively cool. The degree of divergence is adjustable by a lever k. The cutters shown are shaped to make a concave cut, adapted for the meeting edges of ships' timbers to hold the caulking-material.
Patent GB-1126102-A (GB)
Title: Mass spectrometer
IPC: H01J49/02
Filed: 1966-05-16
Abstract: 1,126,102. Mass spectrometers. VARIAN ASSOCIATES. 16 May, 1966 [17 May, 1965], No. 21594/66. Heading H1D. In a mass spectrometer employing cyclotron resonance in crossed magnetic and R.F. electric fields the ions are generated in a first region 32 and move into and through a second region 33 under crossed static and electric fields, the R.F. field being superimposed on the static electric field in region 33. The resonant ions are collected on the side walls of region 33 while the non-resonant ions are collected on collector 43. The resonant condition may be varied by modulating the magnetic field, the R.F. frequency or the electrode voltages. The magnetic field may be reversed and a collector 45 provided at the opposite end of region 32 used to measure the total ion current.
Patent GB-925094-A (GB)
Title: Improvements in coin gauging and selecting mechanism such as used in coin-freed apparatus
Inventor: ROUNSIVELL WILFRED ARTHUR
Filed: 1960-06-21
Abstract: 925,094. Coin testing. FISHER & LUDLOW. May 26, 1961 [June 21, 1960], No. 21704/60. Class 27. A coin tester comprises in sequence an overweight balance 11 which will accept only coins which do not exceed a maximum predetermined weight, a magnet 17 and an impact surface 19 upon which a coin retarded a predetermined amount by the magnet will bounce either to an accepted or rejected path. An inserted coin is first tested for excess diameter between the edge 7 of a block 6 on the hinged clearing wall 2 and a flange 8 on the fixed wall 1 and falls to a runway 9 past a projection 10, which is described in Specification 925,093, and which controls the initial speed of the coin down the runway. A ledge 11 on a counterweighted lever forms a continuation of the runway and an over-weight coin will depress the ledge so that the coin tilts through an opening 13 under the block 6 and lies against a tongue 14 where it is held by a stop 16. A coin which is not over-weight but is too small in diameter will also tilt against the tongue 14. A coin of correct weight and diameter rolls along the ledge 11 and past the poles of the magnet 17. If the coin is of correct composition the retarding effect of the magnet is such that the coin bounces from the surface 19 against a stop 21 and rebounds to an " accept " runway 22. Coins of incorrect composition are trapped by the magnet or fall short of the surface 19 and bounce from a surface 23 and over a plate 25 into a " reject " path. An under-weight balance 26 is prefer. ably provided after the impact test but it may be provided after the over-weight balance or after the magnet. This balance is similar to the balance 11 but it tilts if the coin is underweight and rejects it to a passage 28. Coin-clearing.-The clearing wall may be moved against the action of a spring 3 by depressing a platform 29 so that a lever 30 rotates and causes a projection 32 to push on a roller 33. Depression of the platform also causes a shelf 34 to push off coins held in the region of a slot 34 and causes a finger to move through a slot 37 and remove any coin on the ledge 26. A stripping lever 36 is also swung between the magnet and the fixed wall 1. Alternatively, the clearing wall may be operated electrically so that it is closed for a set time interval, during which a coin can be accepted or rejected, and then re-opened.
Patent GB-357683-A (GB)
Title: Improvements in or relating to electrical insulators
IPC: H01B17/02
Filed: 1930-07-18
Abstract: 357,683. Insulators. HERMSDORFSCHOMBURG-ISOLATOREN GES., Hermsdorf, Thuringia, Germany. July 18, 1930, No. 21783. Convention date, Aug. 12, 1929. Addition to 289,709 and 337,748, [both in Class 36, Electricity, Conducting &c.]. [Class 36.] A spring ring type of insulator of the kind described in the parent Specification in which pressure-transmitting bodies are placed round the pin core to form a composite head of width exceeding that of the neck of the pin cavity, has spring rings 7, 8 arranged between the pressure-transmitting surface of the pin cavity and the underside of the composite pin head 5, 3.
Patent GB-287777-A (GB)
Title: Improvements in or relating to gilled radiators
IPC: F28D1/03
Filed: 1927-08-19
Abstract: 287,777. Chavara, M., and Churruca, I. Aug. 19, 1927. Gills for tubes.-The walls of the vertical water ways of a radiator are deeply corrugated as at B to receive thin flat gill-plates C which are clinched therein and extend across the air space. The folds are then bent upwards or downwards, Fig. 9, for their whole length, or in some cases bent at the front and back edges of the radiator in a direction opposite to that in which they are bent in the intermediate parts. The thickness of the gill-plate may be from one tenth to half a millimetre.