baber/WOPTO huggingface dataset:
Patent GB-1246432-A (GB)
Title: Improvements in or relating to temperature sensors
Inventor: BRICE JOHN CHADWICK
IPC: G01K11/00
Filed: 1970-03-24
Abstract: 1,246,432. Polarizing apparatus. MULLARD Ltd. March 24, 1970, No. 14212/70. Heading G2J. [Also in Division G1] A temperature indicating device comprises a body 1 of birefringent material the birefringence of which varies with temperature, the body having both a polarizing layer 2 and a reflective surface 3 disposed on opposite surfaces thereof. In use, the body 1 which may be a single crystal of barium strontium niobate in the form of a thin film is located in an environment the temperature of which is required and a parallel beam of white light 4 is directed to the body through a window defined on one side of the body. The colour of the output beam 6 from the device is observed and such colour is indicative of the temperature of the environment in which the device is located. The polarizing layers 2 which may be provided with or separate from the reflective surfaces 3 may be of plastics material.
Patent GB-716124-A (GB)
Title: Improvements in or relating to the production of acetic acid and/or the secondary butyl ester thereof
Filed: 1951-06-15
Abstract: Acetic acid and/or secondary butyl acetate is produced by treating secondary butanol in the liquid phase with molecular oxygen, or a gaseous mixture containing it, at a temperature of at least 120 DEG C. and at elevated pressure in the presence of a metal oxidation catalyst.  Preferably the temperature is maintained in the range 120-160 DEG  C. and the pressure exceeds 150 lb./sq. inch. It is convenient to carry out the reaction in the presence of a solvent, fatty acids containing 2-6 carbon atoms per molecule being particularly preferred.  The catalyst may be any of the usual oxidation catalysts, e.g. a manganese or cobalt salt.  The preferred salts are acetates.  It is desirable to add a small proportion of an initiator to the mixture and for this purpose methyl ethyl ketone or an aliphatic aldehyde may be used.  The reaction may be carried out batchwise or continuously.
Patent GB-1139002-A (GB)
Title: Bromophenol derivatives
IPC: C07D307/79
Filed: 1966-02-03
Abstract: 1,139,002. Derivatives of 2-bromophenol. FMC CORP. 3 Feb., 1966 [4 Feb., 1965 (3)], No. 14386/68. Divided out of 1,139,001. Heading C2C. 2-Bromophenol (or its salts) are heated with a methallyl halide and an acid acceptor to give 2-bromophenyl methallyl ether, and the latter heated at 150-300 C. to form 2-bromo-6- methallylphenol (I) and 2-bromo-6-isobutenylphenol (II); I or II may be heated to give 2,3- dihydro-2,2-dimethyl-7-bromobenzofuran (III). Compounds I and III are claimed per se.
Patent GB-1509173-A (GB)
Title: Radiation-sensitive switching circuits
IPC: F02P3/04
Filed: 1975-04-15
Abstract: 1509173 Automatic control of light intensity and voltage LUCAS ELECTRICAL Ltd 15 April 1975 [2 April 1974] 14461/74 Heading G3R [Also in Divisions Fl and G1] A radiation-sensitive switching circuit comprises: a radiation source in series with means for controlling the current therethrough; a photo-detector; a member arranged to expose the detector to the source at predetermined times; means responsive when the detector output attains a threshold level; and means responsive to the detector peak output for influencing the current controlling means in series with the source. In an ignition or fuel-injection timing device wherein the admission, or alternatively the blocking, of light from a controllable LED 44 to a phototransistor 43 is used to initiate a spark or fuel-injection pulse, the peak output from the phototransistor 43, transmitted by emitter followers 36, 41, determines the charging voltage on a capacitor 42. A conductor 49, maintained at the same voltage as that on the capacitor 42 by a differential amplifier and feedback circuit 81-87, acts as a subsidiary fluctuationfree supply rail for a low-voltage Widlar reference source 51-58. A portion of the voltage on the conductor 49, tapped off a voltage divider 88, 89, 91, is compared with the Widlar reference in a differential amplifier 59, 64, whose output, amplified by a transistor 48, is applied to the base of a transistor 46 controlling the current in the LED 44. The resultant changes, transmitted by the phototransistor 43, capacitor 42, line 49 and potential divider 88, 89 91 are arranged to minimise the deviation signal across the inputs of the differential amplifier 59, 64. Thus the peak illumination of the phototransistor 43, and the supply rail 49 to the Widlar reference, are both stabilized, the voltage on the line 49 being a predetermined multiple of the Widlar reference voltage itself. A transistor 93 in series with a resistor 94 to couple the main supply line 11 to the base of the transistor 46, constitutes a start-up device to provide current to the LED 44 when the circuit is first switched on, and before the capacitor 42 has had time to charge.
Patent GB-553310-A (GB)
Title: Improvements in the treatment of sandstone for consolidating, sealing or strengthening the same
IPC: C04B41/50
Filed: 1941-11-10
Abstract: 553,310. Hardening stone. MOWLEM & CO., Ltd., J., and GUTTMANN, A. Nov. 10, 1941, No. 14472. [Class 22] Sandstone is treated to strengthen and consolidate it by impregnating the surface with a dilute solution of sodium or potassium silicate and subsequently applying a mixture of the dilute silicate solution with finely-divided limestone or dolomite to which barium or strontium carbonate, calcium phosphate, silica, calcined clay, calcium oxide or magnesium carbonate may be added. A silicate solution containing metastable silica may be used.
Patent GB-1268020-A (GB)
Title: Cold-rolling pilger mills
IPC: B21B21/04
Filed: 1970-03-25
Abstract: 1,268,020. Rolling. MANNESMANN-MEER A.G. 25 March, 1970 [16 May, 1969], No. 14476/70. Heading B3M. In a cold-rolling pilger mill, Fig. 2, a billet 2 is fed and rotated by a clamping slide 4 to pilger rolls 1 on a mandrel (not shown), a fresh billet 3 is fed to a feed trough and its length 2 measured by measuring the difference X in the distance travelled by a pusher feed 5 and a standard distance L before the fresh billet contacts a limit switch 9, the clamping slide and the rolls are stopped when the clamping slide has moved a distance Z and the clamping slide returned to its starting position. The mandrel block and the clamping slide are opened to receive the fresh billet and the mill restarted when they close after the fresh billet contacts the billet 2.
Patent GB-1104208-A (GB)
Title: Molecular sieve separation
IPC: C07C7/13
Filed: 1966-04-01
Abstract: A process for separating cycloparaffins or cyclo-olefins from mixtures containing them comprises contacting the mixture with a Type Y zeolite adsorbent whereby the cyclic compounds are selectively adsorbed.  The mixture may be jet fuel, kerosene or lubricating oil. Conditions may be 70-800 DEG  F., from subatmospheric pressure to 100 p.s.i.a., from 0.2 to 10 W./W./Hr. and from 1 minute to several hours.  Desorption may be by vacuum, heating or preferably by the use of a displacing agent, e.g. SO2, CS2, C1 to C5 alcohols, ethylene or propylene glycol, alkyl halides or nitro compounds or preferably ammonia or an amine.ALSO:A process for separating cycloparaffins or cyclo-olefines from mixtures containing them comprises contacting the mixture with a Type Y zeolite adsorbent whereby the cyclic compounds are selectively adsorbed.  The mixture may be jet fuel, kerosene or lubricating oil.  Conditions may be 70-800 DEG F., from p subatmospheric pressure to 100 p.s.i.a., from 0.2 to 10W/W/Hr and from 1 minute to several hours.  Desorption may be by vacuum, heating or preferably by the use of a displacing agent, e.g. SO2, CS2, C1 to C5 alcohols, ethylene or propylene glycol, alkyl halides, or nitro compounds or preferably ammonia or an amine.
Patent GB-222542-A (GB)
Title: Improvements in lift pumps
IPC: F04B47/00
Filed: 1923-06-04
Abstract: 222,542. Pearce, G. W. June 4, 1923. Lever-actuated pumps; counterbalances; reciprocating-cylinder pumps; delivery pipes.- On pumps wherein the weight of the column of liquid being raised is counterbalanced either by a weight or by arranging two pumps working in opposition, the piston and delivery pipe are fixed, and the cylinder reciprocates. In Fig. 1, the cylinder a, which may be of inverted-U shape, carries inlet and outlet valves c, d, and is reciprocated by a weighted beam e over a fixed piston b. In the construction shown in Fig. 2, two cylinders a, a<4> are connected to a common chamber a<3>; one carries a delivery valve d and the other reciprocates over a fixed piston b. The beam may be connected to the chamber a<3> or the cylinder a'. In a further modification, pumps similar to that shown in Fig. 1 are connected to the opposite ends of a centrally-pivoted beam.
Patent GB-253542-A (GB)
Title: Improvements in or relating to the manufacture of synthetic camphor
IPC: C07C49/437
Filed: 1926-06-10
Abstract: 253,542. Darrasse, L., Darrasse, E.., and Dupont, L. June 12, 1925, [Convention date]. Bornyl esters.-In a process as described in Specification 164,357, for the production of bornyl esters by heating together turpentine, oxalic acid, and a solvent, simple hydrocarbons such as benzene, toluene, and other hydrocarbons of this series or mixtures thereof are used instead of chlorinated hydrocarbons. As the reaction is slower the relative proportion of solvent used is increased. In an example dry oxalic acid, turpentine, and a mixture of toluene and benzene are heated together, the quantity of solvent being two or three times the quantity of turpentine. Specification 14408/08. [Class 2, Acids and salts, Organic &c.], also is referred to.
Patent GB-876761-A (GB)
Title: Improvements in or relating to cigarette cases
IPC: A24F15/12
Filed: 1960-04-27
Abstract: 876,761. Cigarette cases. MELVILLE Ltd., WALTER. (Tschatsch, W.). April 27, 1960, No. 14814/60. Class 18. A cigarette case comprises a pouch 1, closure flap 2, a frame 3 loosely positioned within the pouch 1 to receive the cigarettes 7 and means e.g. metal members 8 and 9 pivoted to the frame 3 at 10, 11 and fitted at their other ends into pockets 12, 13 in the flap 2 for partial withdrawal of the frame from the pouch when the flap 2 is opened. In a modification additional uprights and cross-members are provided in the frame to keep the cigarettes in place, and' the two metal members are joined at their ends opposite the pivots by a cross-member.
Patent GB-721910-A (GB)
Title: Tube-forming pilger-rolling machine
Inventor: COOPER JAMES CORBETT
IPC: B21B21/00
Filed: 1952-06-12
Abstract: 721,910. Operating clutches. T.I. (GROUP SERVICES), Ltd. May 29, 1953 [June 12, 1952; Jan. 1, 1953], Nos. 14817/52 and 28/53. Class 80 (2) [Also in Group XXII] Rolling mill rolls 1, Fig. 1, are connected to a continuously rotating power source 8 through dog clutches 9 which are disconnected for removal of the work &c., and are re-engaged by driving the rolls through a separate driving means until the speeds of the clutch discs are the same. In one example the rolls are driven by an auxiliary motor 11 through gears 12, the motor also being used to reduce pressure on the clutch teeth before disengagement. In another example the rolls have an auxiliary drive through sun and planet pinions 13, 14, Fig. 2, of a differential gear which becomes operative when the planet gear casing 15 is held stationary by a manually-operated hydraulic brake 22. Phase adjustment of the clutch discs is obtained by partially rotating the brake back plate 23 and thereby the differential housing 15 by means of a manually-controlled hydraulic ram 28, Fig. 3, the correct phase being determined by the engagement of an actuating member 37 and switch 36 carried by discs 34, 35 coupled through gears 39-42 to the clutch discs 9 and operating the hydraulic clutch-engaging mechanism through an electromagnetic valve. In this example, pressure on the clutch teeth is relived for release of the clutch by a manually-controlled pneumatic ram 30 which also partially rotates the brake back plate 23. A separate small motor 44 and brake 45 are used for inching.
Patent GB-947060-A (GB)
Title: Improvements in hydraulic pumps or motors
IPC: F01B3/00
Filed: 1960-04-27
Abstract: 947,060. Pistons. H. THOMA. April 27, 1960 [April 30, 1959], No. 14817/60. Heading F2T. [Also in Division F1] In an hydraulic pump or motor, circumferentially-spaced grooves 7 and 8 retain pressurized oil bodies which absorb side thrust on the piston. Oil from the cylinder working space is supplied direct to the grooves 7 and via ducts 12a, 12 to the grooves 8. A duct 13, which may connect with an annular piston surface recess, communicates with atmosphere via a duct 16. The grooves 7, 8 may be formed in the cylinder when their inner ends are connected by respective annular cylinder surface recesses fed from the cylinder working space by cylinder borings, and there is an intermediate annular cylinder surface recess connected to atmosphere.
Patent GB-579272-A (GB)
Title: Improvements in hpmv electric discharge lamps
IPC: H01J61/073
Filed: 1941-11-26
Abstract: 579,272. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and KETTLEWELL, E. Nov. 26, 1941, No. 15204. Drawings to Specification. [Class 39 (i)] In a high-pressure mercury vapour discharge lamp wherein the maximum width of at least one running electrode is as great as or greater than the length of the shortest line between the two running electrodes, the said running electrode is formed by a number of solid metal cylinders secured together with their axes parallel to each other and to the said shortest line and with their ends opposed to the other said running electrode all lying in a plane substantially perpendicular to the said shortest line. The cylinders may be of tungsten and welded or strapped together. Flats may be provided at lines of contact of the cylinders.
Patent GB-751897-A (GB)
Title: Improvements in composite sealing washers or gaskets
IPC: F16B43/00
Filed: 1954-05-24
Abstract: 751,897. Joint-making packing. DOWTY SEALS, Ltd., and BASTOW, F. Sept. 9, 1954 [May 24, 1954], No. 15232/54. Classes 122(3) and 122(5) [Also in Groups XXII and XXVIII] In a composite gasket comprising a metal plate 13 having one or more apertures 12 containing resiliently deformable sealing rings 11, each aperture is formed first by stamping to provide a cylindrical wall and then by pressing to render the wall generally convex or concave in section, the sealing ring being either moulded in the aperture or formed separately with an outer surface complemental to the aperture in which it is subsequently fitted. A cylindrical bore 15 is stamped in the plate 13 and then deformed to either, a convex section by a pair of frusto-conical dies pressed oppositely into the bore or, a concave section by a pair of annular dies 17, Fig. 6, pressed oppositely against the plate and forming V-shaped annular depressions 18 in the plate around the aperture 12. The sealing rings 11 are made of synthetic rubber and project axially beyond the plate 13 to which they may be bonded.
Patent GB-702316-A (GB)
Title: Process and apparatus for desalting liquids by means of ion-exchangers, and for regenerating said exchangers
IPC: B01J49/00
Filed: 1952-06-17
Abstract: 702,316. Purifying liquids by ion-exchange. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST - NATUURWETENSCHAP - PELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. June 17, 1952 [June 19, 1951], No. 15255/52. Class 46. [Also in Group XXXVI] A multiple bed comprising layers 2 of cationexchange material (e.g. a sulphonated phenol-formaldehyde resin) alternating with layers 4 of anionexchange material (e.g. a phenol-formaldehyde resin with amino groups in the aromatic nucleus) is regenerated by passing a salt solution which on electrolysis forms acid at the anode and alkali at the cathode in the planes of the layers from pipes 7 ... 11 to pipes 12 ... 16 while simultaneously forming such acid and alkali by electrolysis between anodes 5 in the cation-exchange layers and cathodes 6 in the anion-exchange layers. Some of the liquid intended to be treated by the bed may be used as the salt solution for regeneration. During normal treatment of liquid to remove ions the liquid is passed vertically through the column. In a modification, Fig. 2 (not shown), the column is rectangular in crosssection, the two wider walls (with which the regenerant pipes communicate) are double and provided on the inside with horizontal rows of perforations spaced 1 cm apart, and the electrodes are located in the planes of the rows of perforations.
Patent GB-937200-A (GB)
Title: Air-cooled internal combustion engine
IPC: F02F1/08
Filed: 1962-04-19
Abstract: 937,200. Air-cooled cylinders. KLOCK-. NER-HUMBOLDT-DEUTZ A.G. April 19, 1962 [April 22, 1961], No. 15275/62. Class 7(2). The flanged upper end 12 of a liner 3 of an air-cooled engine is seated in a ring 13 of heavy metal clamped between the cylinder head 6 and barrel 2. The head and barrel are preferably of light metal, the liner 3 may be of cast iron, and the ring 13 may be of a good heat conducting material such as copper or bronze. The liner 3 may be a sliding or force fit in the barrel 2 and the thickness of the barrel may increase towards each end.
Patent GB-515253-A (GB)
Title: Improved method of refining pig iron for conversion into steel
IPC: C21C1/02
Filed: 1938-05-23
Abstract: 515,253. Iron, manufacture of. MEHTA, F. P. May 23, 1938, No. 15293. Convention date, June 28, 1937. [Class 72] In the production of low sulphur, phosphorus and silicon iron suitable for conversion into steel pig iron containing about 0.5 per cent. of silicon, 0.1 of sulphur and 0.35 of phosphorus is desulphurized until the sulphur content is below 0.06 per cent. and then dephosphorized and desiliconized by filtration through liquid basic oxidizing slag, preferably produced as described in Specification 515,255. The dephospherization &c. may be carried out as described in Specification 509,306. The treated iron may then be converted into steel in an open hearth furnace.
Patent GB-1542387-A (GB)
Title: Detergent composition
IPC: C11D1/78
Filed: 1977-04-13
Abstract: A detergent composition for cleaning viscous or solid organic soil and stains from surfaces comprising an organic phosphoric acid ester, an alkaline material and an anionic or non-ionic surfactant.
Patent GB-231050-A (GB)
Title: Arrangement for automatically firing selfloading guns
IPC: F41A19/46
Filed: 1924-06-25
Abstract: 231,050. Hansen, H. C. June 25, 1924. No Patent granted (Sealing fee not paid). Breech actions, sliding breechblock. - The trigger mechanism of automatic guns which normally fire a single shot for each pull of the trigger is provided with a lever mechanism which can be set to operate the sear automatically under the action of the breech-block. The invention is shown in Fig. 3 applied to the firing mechanism shown in Fig. 1, which comprises a hammer 10 pivoted on the pin 8 and adapted to be held cocked by a sear 12, 14 pivoted on a pin 9, a trigger 16 pivoted on the pin 9 and having a sear-actuating projection 15 at the rear and a forward arm 20 co-operating with a safety bolt 22, and a bell-crank safety lever 24, 26 co-operating with a projection on the trigger arm 20 to lock the trigger except when, in the closed position of the breech-block, the horizontal arm 24 is depressed by the breech-block. The mechanism for adapting for continuous firing comprises a lever 29, Fig. 3, pivoted on the sear pivot 9, having at the front a lateral projection which engages under the horizontal arm 24 of the bell-crank lever, and at the rear carrying a pivoted eccentric 32, Fig. 5, adapted, when raised to the position shown in Fig. 3, to engage the underside of the sear, so that, when on the closing of the breech the horizontal arm 24 of the bell-crank lever is depressed by the breech-block, the sear is actuated. The position of the eccentric 32 is determined by a transverse pin 36 frictionally mounted in the trigger so that it can be moved to project slightly on one side or the other. When it projects in one direction, it engages the eccentric when the trigger is pulled and raises it to the position for continuous firing.
Patent GB-275941-A (GB)
Title: Improvements in or relating to address printing plates
IPC: B41L47/14
Filed: 1927-06-08
Abstract: 275,941. American Multigraph Co., (Assignees of Osborn, H. C.). Aug. 12, 1926, [Convention date]. Addition to 270,676. Addressing-machines; printing-surfaces. - The addressplate described in the parent Specification is modified by terminating some of the intermediate rows of overhanging projections 10, 10<a> short of one end of the plate, to provide a space bounded by the longer side rows and the ends of the shorter rows to receive an index tab 15, which is retained by the projections on the longer rows.
Patent GB-1351814-A (GB)
Title: Electrographic recording method and apparatus
IPC: G06K15/14
Filed: 1971-05-17
Abstract: 1351814 Developing XEROX CORP 17 May 1971 [20 May 1970 15337/71 Heading G2H [Also in Divisions B6 and G4] In an electrostatic printer wherein a row of styli 6 is moved across a recording paper 2 on a carriage 26 a semi-cylindrical toner absorbant pad 37 is rotated against the paper to develop the recording. (For Figure see next page)
Patent GB-102147-A (GB)
Title: Improved Apparatus for Protecting the Brake Drums from the Leakage of Lubricant in Motor Cars.
Inventor: BARBAROU MARIUS JEAN BAPTISTE
IPC: F16D65/10
Filed: 1916-10-30
Abstract: 102,147. Barbarou, M. J. B. Nov. 9, 1915, [Convention date]. Covers and protectors for brakes.-A device for protecting the brake drums of motor vehicles from the leakage of lubricant comprises a flared casing c attached to the wheel a and a stationary gutter d fitted with a discharge pipe f. The edge of the gutter may be curved inwards and backwards.
Patent GB-1293734-A (GB)
Title: Wheel speed sensor for an anti-skid braking system
IPC: G01P3/488
Filed: 1971-05-18
Abstract: 1293734 Machines with permanent magnets BENDIX CORP 18 May 1971 [1 June 1970] 15499/71 Heading H2A In a wheel speed sensor for use in an antiskid braking system wherein a toothed rotor 32 is secured to a hub portion of a vehicle wheel and co-operates with a stationary pick-up 60, the rotor comprises a cupshaped support 34 to which is secured a toothed ferromagnetic ring 36. As shown in Fig. 2, the sensor is mounted within a brake drum 30, the support 34 of the rotor being clamped between an axle flange 14 and the brake drum, and the pick-up being carried by a bracket 48 attached to the brake backing plate 18. The pick-up comprises a coil and permanent magnet secured in a housing by potting compound and is radially adjustable on the bracket with respect to the rotor by means of a pair of rearwardly extending ears 66 which are drawn into clamping engagement with the bracket by a bolt 68. The potting compound projects beyond the housing to form a spacer between the pick-up and rotor. Ring 36 may be welded to the face of a radial flange 44 on the support 34 and may be fabricated from a strip or bar which is first formed with teeth and then rolled into circular form. Alternatively, Fig. 6, the ring 136 may be pressed onto an axial flange 78 on the support 134 and secured in place by rolling up the outer end of the flange.
Patent GB-1033247-A (GB)
Title: An electric connector for use with printed circuit boards
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R12/71
Filed: 1964-04-15
Abstract: 1,033,247. Connectors for printed circuit boards. PRESSAC Ltd. March 18, 1965 [April 15, 1964], No. 15556/64. Heading H2E. An electric connector for use with printed circuit boards comprises a flat insulating body 1 which supports contacts 7 which are held in position by the end 8 of the contact engaging in a groove at the end of the body, said contacts at the opposite end being connected to cables 3 which are relieved of longitudinal stress by means of a buckle-type grip 2. The connector is held in contact with the printed-circuit board by means of resilient lugs 10 which engage in specially shaped slots either in the printed-circuit board or at the edge of the board.