baber/WOPTO huggingface dataset:
Patent GB-896254-A (GB)
Title: Solid, thermoplastic, polyspirane resins
IPC: C08G4/00
Filed: 1958-06-09
Abstract: Crystalline, linear, thermoplastic polyspiranes having a melting point of at least 200 DEG C. are prepared by condensing, in an inert liquid which is a solvent for at least one of the reactants and in presence of an acidic catalyst, (1) a mixture containing pentaerythritol and up to 25 wt. per cent of dipentaerythritol, with (2) (a) succinaldehyde gluteraldehyde or mixtures thereof, or (b) cyclopentanediols, cyclohexanediols, o, m, or p-phthalic aldehydes or mixtures thereof, or (c) mixtures of (a) and (b), or (d) methyl or ethyl derivatives of (a).  10 to 100 parts of reactants are contained in 100 parts of the inert liquid, which may be an organic liquid boiling above 80 DEG C. or water.  If desired 0,5-10% by wt. of reactants, of a cationic, anionic or non-ionic dispersing agent, e.g. sodium lauryl sulphate may be present in the reaction mixture. Reaction may be effected under reflux. Preferably a slight molar excess of the pentaerythritol mixture over the aldehydes is used. Reaction is terminated by neutralizing the acid catalyst, cooling or removing the precipitated product which should be carefully washed. The preferred catalyst concentration is 0,1 to 1,0 wt. per cent of the reactants.  The products are readily soluble in alkyl phenols, and soluble with heat in other solvents, e.g. dimethyl sulphoxide, 2-pyrolidone, tricresyl phosphite, furfuryl alcohol or certain liquid epoxy resins.  In Examples (I) a mixture of 88% pentaerythritol and 12% dipentaerythritol was heated to reflux with sodium laurylsulphate, water and glutaraldehyde.  Reaction was initiated as soon as reflux started by addition of hydrogen lauryl sulphate. After 5 hours heating caustic potash was added, the supernatant liquid decanted and the reaction mixture stirred into aqueous methanol, filtered and washed.  (II) is similar without the dispersing agent.  (III) uses 3-methylglutaraldehyde. (IV) describes a copolymer from glutaraldehyde and 3-methylglutaraldehyde.  (V) is similar to (II) using oxalic or formic acid as the catalyst.  (VI) uses a mixture containing 25% of dipentaerythritol.  Uses.  The products are useful in coating or film-forming compositions.  They may be moulded or extruded alone or with other resins.  They may be heat cured with cross-linking agents, e.g. inorganic acids, phenolic resins, epoxide resins, isocyanates, anhydrides, esters or polyvalent ions.  They have good adhesion and high temperature resistance and outstanding electrical insulating properties.  Specification 718,502 is referred to.
Patent GB-615751-A (GB)
Title: Improvements in or relating to machines for producing hair curlers or the like articles
IPC: B21F45/16
Filed: 1946-06-19
Abstract: 615,751. Making hair-pins. THORNTON (TEDDINGTON), Ltd., A. A., and THORNTON, A. A. June 19, 1946, No. 18450. [Classes 83 (ii) and 83 (iv)] Shearing; angular bending.-In a machine for making hair-pins in which wire is intermittently fed, sheared and bent U-shape, means is provided for interrupting the feeding after a predetermined number of pins have been delivered. Feeding. Wire 5 is intermittently fed by gapped rolls 14, 15 rotated by an electromotor 7 which drives also through gearing 34 a cam 47 actuating a lever 28 to separate the rolls and interrupt the feed after a predetermined number of pins have been fed. The wire is fed along guides 41, 45 to a pivoted shear blade 50 actuated by a cam on shaft 6 which severs the wire into lengths. The wire is held during shearing by a camactuated clamp 58. Bending. The wire is positioned across guides 77, 78 and fingers 67 on a chain 65A engage the middle of the wire and pulls it between the guides to effect bending. The U-shaped wires are dropped on to a slowly rotated table 80 fitted with a collecting scraper 92. Specification 609,452, [Group XXV], is referred to.
Patent GB-313761-A (GB)
Title: An improved receptacle for collecting the dross from type casting metals and the like
IPC: B41B11/00
Filed: 1928-06-26
Abstract: 313,761. Stephenson, Blake, & Co., Ltd., and Stephenson, H. F. B. June 26, 1928. Refuse-bins.- A receptacle for collecting dross from type casting metals &c., and adapted to prevent escape of fumes, comprises a container a with handles c and feet b, the top of the container having doors d normally held closed by a spring or springs e but adapted to open under the weight of the dross; the bottom of the container has doors h normally held closed by a single or double armed lever i provided with a handle k, one lever having a slot which engages a pin on one of the doors.
Patent GB-223302-A (GB)
Title: Improvements in or relating to the heat treatment of solid carbonaceous materials and to the manufacture of briquettes
IPC: C10L5/02
Filed: 1923-07-17
Abstract: 223,302. Laing, B., and Nielsen, H. July 17, 1923. Carbonizing processes and apparatus.-Carbonaceous material is heated in a primary retort A until it reaches a plastic condition, e.g. at 350‹ C., when it is withdrawn, briquetted and whilst still hot introduced into a secondary retort A' for further or complete distillation, e.g. at 600‹ C., the retorts being interconnected through a flue B and internally heated by a continuous stream of gases passng from the secondary to the primary retort. Steam, water, or a binder such as pitch, may be admitted through a pipe Q into the primary retort and volatiles discharged through a pipe E. The carbonaceous material when plastic is delivered through an annular chamber F to a briquette press J, and the hot briquettes are conveyed by an elevator L, hopper N and shoot 0 into the secondary retort A'. Further heating gases may be admitted through a pipe P. When utilizing the sensible heat of producer gas, the combined heating and retort gases may, with reheating, be circulated several times through the retorts before passing to the condenser, or part of the gases, or the stripped gases may be readmitted. Any number of retorts may be employed for the primary and secondary stages of the process, and they may have baffles and shelves as described in Specification 212,961.
Patent GB-923315-A (GB)
Title: Thermally responsive electric switches
IPC: H01H61/00
Filed: 1959-05-29
Abstract: 923,315. Thermal switches. TEXAS INSTRUMENTS Inc. May 29, 1959 [July 2, 1958], No. 18466/59. Class 38 (5). A thermally-responsive switch has a bimetal 48 insulated from the circuit but responsive both to ambient heat and to heat generated in a conductor 36 of substantial resistance and to heat generated in a further conductor 34 which may be of high or low resistance. Specifically designed for motor protection the conductor 36 is in series with a starting winding 72 to protect against stall whilst the main winding 74 is fed from the conductor 34. In an embodiment (not shown) the two conductors 34, 36 are formed as a loop of metal arranged to have the desired resistance properties, e.g. by use of varying cross-sections or materials in its various parts. Although, as shown, the conductors are resilient they may have tension springs to provide some or all of the force restraining the switch action. The switch is creep acting but may have snap action, especially as disclosed in Specification 178,103.
Patent GB-613590-A (GB)
Title: Improvements in or relating to the utilisation of the exhaust gases from gas turbines
IPC: F01K23/10
Filed: 1946-06-19
Abstract: 613,590. Gas turbine plant. AKT.-GES. BROWN, BOVERI, & CIE. June 19, 1946, No. 18471. Convention date, June 21, 1945. [Class 110 (iii)] The exhaust passage of a gas turbine 1 is connected to at least two conduits 8, 9 leading to a pre-heater 4 and one or more steam generators 6. The exhaust is divided between the users by a valve such as 10. A burner may be provided in pipe 9 to supplement the exhaust gas heating.
Patent GB-331084-A (GB)
Title: Improvements in stockless anchors
IPC: B63B21/44
Filed: 1929-06-15
Abstract: 331,084. Baxter, F. U. June 15, 1929. Anchors.-The palms c of a stockless anchor have palms d across them, the plane of these palms being inclined to the centre line of the shank. In a modification these palms are carried along the arms b to the head in the form of a rib.
Patent GB-460517-A (GB)
Title: A medium for removing hair or wool and a process for the production thereof
IPC: C14C1/06
Filed: 1935-06-28
Abstract: 460,517. Depilating hides &c. GRUNWALD, O., and WEISS, E. E. June 28, 1935, No. 18548. [Class 76] In depilating hides &c. known alkaline media for the removal of hair, e.g. lime-alkali-sulphide, are mixed with 10 to 25 per cent of a water miscible liquid prepared from alkali hydroxide, ethyl alcohol and a vegetable oil in quantity more than sufficient to saponify the alkali. In preparing the water miscible liquid one part of potash lye of 40‹ Be., À2 parts of ethyl alcohol and 4 parts of vegetable oil may be mixed. Such a preparation may be added to an aqueous mixture of sodium sulphide, unslaked lime and salt. Mixtures of lime with alkali sulphate and sulphite may also be used.
Patent GB-169541-A (GB)
Title: Improvements in electrical accumulators
IPC: H01M2/12
Filed: 1920-07-05
Abstract: 169,541. Saunders Electrical Co., Ltd., and Saunders, C. July 5, 1920. Gas exits. - A gas exit consists of a tube A having notches A<3> at its lower end and a concave baffle B extending laterally beyond the sides of the tube.
Patent GB-204155-A (GB)
Title: Pulley blocks, improvements in construction of
IPC: B66D3/10
Filed: 1922-07-07
Abstract: 204,155. King, A. G. A. July 7, 1922. Self-sustaining gear.-Two superposed loops of rope, cord, or the like are caused to bind on one another to make a pulley-block self-sustaining. Fig. 1 shows a construction in which the hauling rope passes from a fixed point on the support S, round the pulleys A, B as shown before passing to the hauling point P. The load acting at C rotates the carrier until the two loops of rope on the pulley A bind on one another. The hauling force applied at P reverses the rotary movement until the rope is freed for hoisting. A releasing line P<1> is pulled to reverse the rotary movement to permit lowering. Modifications are described having additional parts, but these parts do not affect the general method of working.
Patent GB-1037114-A (GB)
Title: Forging method and apparatus
Inventor: BEARD JACK HERBERT
IPC: B21J13/10
Filed: 1964-05-06
Abstract: 1,037,114. Forging. DAVY & UNITED ENGINEERING CO. Ltd. May 3, 1965 [May 6, 1964], No. 18728/64. Heading B3H. A workpiece is forged between the movable die 27 and fixed die 31 of a press tool whilst being moved hydraulically at half the speed of the movable tool and in the same direction. The workpiece is moved by a manipulator (Fig. 2, not shown) at the desired speed under the control of a cylinder 10 and ram 11. The ram itself is operated through valves 15 and 16 by the outputs of a positional control 35 and pressure switch 36 on the press tool. The valves are supplied from a pump 12 and are actuated by solenoids 22-24, while an accumulator 17, counterbalance valve 18, and speed control valve 20 are in circuit with the cylinder 10. When the upper die 27 on its downward path contacts a workpiece, a pressure rise in the switch 36 causes the ram 11 to be supplied with oil pressure through the valve 20 which has previously been set to cause lowering of the workpiece at half the die speed. The die is automatically returned to its starting positions on completion of the working stroke. The workpiece is held in a peel 44, Fig. 2, which is movable vertically under the control of the ram 11. The inner end 49 of the peel is held between plates 54 which are pivoted at 53. Extension of the ram pivots the plates to raise the end 49, a pin 56 simultaneously drawing a cylinder assembly 51 and platform 50 to the left. A chain 46 is thereby moved by a pulley 48 to raise a block 45 by the same distance as the end 49 is raised, the peel thus remaining horizontal as it is moved.
Patent GB-1208758-A (GB)
Title: Apparatus for writing a configuration by deflecting a beam
IPC: G09G1/10
Filed: 1967-10-10
Abstract: 1,208,758. Photographic type-composing. HARRIS-INTERTYPE CORP. 10 Oct., 1967 [3 Nov., 1966], No. 18827/70. Divided out of 1,208,754. Heading B6W. The subject-matter of this Specification is substantially the same as that described in Specification 1,208,754 but the claims relate to the production of oblique characters by modifying the horizontal beam deflection as a function of the vertical beam deflection.
Patent GB-850130-A (GB)
Title: Process and apparatus for the sonic and ultrasonic treatment
IPC: B01F7/00
Filed: 1958-06-12
Abstract: <PICT:0850130/III/1> Liquids, including emulsions, are treated with sonic vibrations generated in an apparatus of the rotor stator type, in which the rotor has a different number of openings, and preferably a smaller number, than the stator.  In a suitable apparatus for converting a coarse suspension into an emulsion, a rotor member 11 is mounted within a stator which has a larger number of equally spaced channels 17 than in the stator 16.  The liquid is fed into the centre of the rotor and flows through the channels 16 until it meets the stator/rotor interface when flow is interrupted until a stator channel comes into register with the rotor outlet.  High intensity cavitation results which disperses the particles.  In a modification, the stator conduits are curved, and a number are longer than the other by 1/2 wave length at the frequency generated.  This form of apparatus may be applied to the coagulation of suspensions.
Patent GB-440353-A (GB)
Title: Improvements in or relating to photographic cameras provided with range finders
IPC: G03B13/14
Filed: 1934-06-27
Abstract: 440,353. Photographic cameras with telemeters. KODAK, Ltd., Kingsway, London.-(Eastman Kodak Co. ; 343, State Street, Rochester, New York, U.S.A.) June 27, 1934, No. 18938. [Classes 97 (i) and 98 (i)] The telemeter comprises fixed reflecting means for reflecting the rays received at one end of the base along the whole length of the base and is provided with a pair of telescope objective lenses which serve to focus the reflected and direct rays to form images in the field of view of a telescope eyepiece, the lens in the path of the direct rays being coupled to the camera focusing means for movement parallel to the base. In the form shown, incoming rays are reflected by the prisms A, B to a prism C combined with a prism D for reflecting the rays to the eye through an eyepiece G. The prisms A, C are twice the height of the prism B so that an image is formed the lower half of which is focused by reflection from the prism B and the upper half by reflection from the prism A. Lenses E,F are arranged in the paths of the rays to form the images, the lens F being carried by a bracket &c. adapted to be moved laterally by a cam J on or coupled to the focusing adjustment of the camera lens. A direct vision view finder formed of positive and negative lenses L, K is also provided. The prism B may be combined with the lower half of the prism C, the upper part of this being replaced by a plane mirror. The Provisional Specification refers also to the use of a field of view consisting of a central circular part surrounded by an annular part; of a cam groove out in the face of a rotatable member coupled to the focusing adjustment ; of a collapsible strut between the body and the camera front ; and to a tubular telescopic casing or bellows between the movable lens and the optical viewing system.
Patent GB-485424-A (GB)
Title: Improvements in reciprocating pumps and compressors
IPC: F04B53/12
Filed: 1937-12-04
Abstract: 485,424. Pumps and compressors. GARDNER & SONS, Ltd., L., and GARDNER, J. K. Dec. 4, 1937. No. 18971. [Classes 8 (i) and 102 (i)] In a pump or compressor the piston ring b is movable axially in its groove and acts as the discharge valve by controlling a passage e from the ring groove to the interior of the piston. To facilitate reversal of the ring, the lower edge of the ring is chamfered and the upper face of the groove recessed, as shown.
Patent GB-238531-A (GB)
Title: Improvements in means for detecting the presence of methane or other hydrocarbon gases
IPC: G01N25/32
Filed: 1925-07-27
Abstract: 238,531. Sejvl, J., Winkler, R., and Palkon, M. Aug. 15, 1924, [Convention date]. Gas analysis.-The tungsten filament 2 of an incandescent electric lamp 1 is connected in series or in parallel with a catalytic filament 3 of platinum &c. enclosed in a glass body 4 open to the atmosphere at points 5, 6, the filaments being supplied with current from an accumulator 10, while opposed thermopiles 7, 8 arranged near the filaments are connected with a galvanometer 9; the presence of methane &c. in the atmosphere is indicated both by increased glow of the filament 3, and by differential-current indication on the galvanometer. When the filaments are arranged in parallel, Fig. 2. a movable contact 11 and resistance 12 are provided. The device may be arranged in a miners' lamp, in which event it is surrounded by a glass cylinder closed at the ends by screens of gauze.
Patent GB-596468-A (GB)
Title: Improvements in or relating to soap and sponge or like baskets
IPC: A47K5/03
Filed: 1945-07-25
Abstract: 596,468. Soap-holders. YOUNGMAN, Ltd., W. C., and PRICE, F. S. July 25, 1945, No. 19040. [Class 131] A soap and sponge basket is constructed from bent wire members 3 threaded by means of eyes 7 on rod members 1 and held in position by spacing tubes 4 also adapted for threading on the rod members the ends of the rod members being screw-threaded for connection with internally threaded extension members 5. As shown, connecting members 6 are secured by grub screws 16 near each end of the extension members 5 and receive cross rod members which support the spacing tubes and bent wire members of the soap basket 14. The bent wire members of the soap and sponge baskets 14, 15 are bent to differing degrees to provide dished baskets. Telescopic handles for suspending the basket across a bath are inserted in the outer ends of the extension members 5.
Patent GB-760276-A (GB)
Title: Improvements relating to the manufacture by centrifugal casting of tubular bodies with external protuberances
IPC: B22D13/10
Filed: 1954-06-30
Abstract: 760,276. Centrifugal casting - machines. ROTHFISCHER, A., and ROTHFISCHER, G., [trading as ROTHFISCHER MASCHINENFABRIK UND EISENGIESSEREI GEB.]. June 30, 1954, No. 19119/54. Class 83 (1). In a machine for centrifugally-casting tubular bodies having integral protuberances, the part of the mould defining that part of the casting having protuberances comprises a two-part split cone, and a socket cone which co-operate in such a manner that they are hold in position in the mould by axial pressure applied to the socket cone. The enlarged headportion 151 of a drain-pipe 15 is formed by a two-part cone 16 and a socket cone 17, engaging along complementary surfaces 171, 162, and held in position in the mould 10 by spring- loaded levers 19. The split cone 16 is shaped to produce a pair of beads 152 around the headportion 151 and fixing-lugs 153, holes 154 in the lugs 153 being formed by inserts dovetailed into the cone. Specification 642,611 is referred to.
Patent GB-823963-A (GB)
Title: Electric arc welding apparatus
IPC: B23K9/10
Filed: 1956-06-20
Abstract: 823,963. Control systems for welding arcs; rectifying. LINCOLN ELECTRIC CO. June 20, 1956 [Oct. 17, 1955], No. 19126/56. Classes 38 (2) and 38 (4). A combined A.C.-D.C. arc welding equipment comprises a transformer 20, having a tapped secondary winding 56 and an auxiliary secondary winding 63, high series reactances 21-25, a full-wave rectifier 82 and a series reactor 80. By combinations of the secondary windings with reactors 21-25, three rates of A.C. output can be selected by switch 28. The p.d. between a transformer tap 59 and a tap 72 on reactor 22 is applied to a half-wave rectifierrelay combination 74, 75 which operates a further relay 69 to place an additional reactor 78 across reactors 21-23 when the current exceeds a certain value to assist initiation of the arc. A second switch 81 a, b, c has 3 positions giving A.C., or - ve or +ve polarity D.C. The equipment can be supplied without the rectifier 82 and reactor 80, which may be added at a later date. The rectifier is protected against overload by a thermostat 105 having a currentoperated heater winding 107, thus giving protection against high temperatures, and high currents of short duration. A similar circuit is provided to protect the main transformer and reactor windings.
Patent GB-121783-A (GB)
Title: Improvements in Brackets or Stanchions for Handrails, Balusters, Barriers or the like.
Inventor: BRINE CHARLES THOMAS
IPC: E04F11/18
Filed: 1917-12-28
Abstract: 121,783. Brine, C. T. Dec. 28. 1917. Balusters; hand -rails.-Brackets or stanchions for hand-rails, balus. ters, &c. are constructed from head and base members 1, 2, lengths of screwed rod 5, and tubes 4, interposed between the members 1, 2 and surrounding the rod 5, the advantage being that the tube and rod can be cut to the required dimensions from long lengths of the material while the parts 1, 2 are made of standard pattern. The rod is screwed throughout its length and may screw partly into or completely through the base 2. To facilitate adjustment when the wall &c. is not vertical or horizontal, two disks 10, 11, cut with sloping surfaces, are interposed between the base piece and the supporting structure and rotated to give the necessary adjustment.
Patent GB-1504628-A (GB)
Title: Solid-liquid separation
IPC: C02F11/126
Filed: 1975-05-07
Abstract: 1504628 Dewatering sludge WILLIAM JONES (CHEMICAL ENGS) Ltd 7 May 1975 [8 May 1974] 19236/75 Heading BID Sludge is mixed with polyelectrolyte flocculant in rotary mixer 1 and dewatered first in an outward-flow rotary sieve drum 3 and then in a moving band press filter 10, the filter band 9 is washed with water from nozzle 14 and the used wash water and/or filtrate from collector 64 is recycled to the inlet end of drum 3. Filtrate from drum 3 is collected in vessel 69, part is directed by pump 70 to nozzle 14 and the rest discharged at 73. The filter band 9 may be wire cloth. The initial sludge may contain 0.5-15% solids and can be sewage sludge, ceramic slurry, paper slurry, vegetable puree, mineral ores, food waste, alum or lime wastes or coal tailings. Drum 3 may be internally divided by annular baffles 4. Mixer 1 and drum 3 may be arranged coaxially or parallel (Fig. 2, not shown).
Patent GB-628557-A (GB)
Title: Improvements in or relating to lifting magnets
IPC: H01F7/20
Filed: 1946-06-28
Abstract: 628,557. Electromagnets. IGRANIC ELECTRIC CO., Ltd. June 28, 1946, No. 19391. Convention date, June 29, 1945. [Class 35] The annular coil of a lifting magnet is sealed within a metal enclosure so that it may be readily detached from the magnet core. As shown, the coils 10 are sealed in a welded casing comprising a magnetic core part 11 adapted to fit round the pole projection 2, a magnetic top plate 12 and a magnetic outer shell 14, the whole being closed by a bottom plate 13 of non-magnetic material, e.g. stainless steel. A tubular entry 20 is provided for each of the terminal pins 19 which are connected by flexible connectors 32 to binding posts mounted in a connection box 29. The coil is insulated by mouldable material 22 cast into the enclosure, this being retained in position in the magnet core by removable pole shoes 6, 7 and a non-magnetic shield 5 having an asbestos pad 25.