baber/WOPTO huggingface dataset:
Patent GB-390855-A (GB)
Title: Improvements in or relating to breathing appliances
IPC: A62B9/00
Filed: 1931-10-12
Abstract: 390,855. Respiratory appliances. DAVIS, R. H., 187, Westminster Bridge Road, London. Oct. 12, 1931, No. 28320. [Class 81 (ii).] In breathing-apparatus comprising a breathing-bag 12 containing a canister 13 of absorbent material secured by a flanged connecting member for the breathing tube 11 which member passes through the wall 22 of the bag, the wall 22 is of the same elasticity as that of the remainder of the bag, and the bag is provided with an opening, formed by two depending lips 19, through which the canister is inserted. After insertion the opening is closed by clamping the lips 19 between plates 20 by bolts provided with fly-nuts 21. The invention may be applied to the construction described in Specification 379,131. Specification 333,647, [Class 81 (ii), Medical &c. appliances], is referred to.
Patent GB-812923-A (GB)
Title: Steering mechanism of the rack and pinion type
IPC: B62D3/12
Filed: 1955-10-05
Abstract: 812,923. Vehicle steering. CAM GEARS Ltd., and LEESE, H. Dec. 19. 1956 [Oct. 5, 1955], No. 28329/55. Class 79(5) In a rack and pinion steering mechanism having the tie rods to the steered wheels connected to the ends of the rack the pinion on the steering wheel column is engaged with the rack through the intermediary of a gear train whereby the velocity ratio between the steering wheel and the rack is increased. As shown the steering shaft 14 is supported in a casing 11 integral with the rack housing 12, the shaft 14 being urged against a cover 13 by a spring 18. An pinion 19 on the shaft 14 meshes with a gear 20 on a shaft 21 which carries a gear 24 meshing with the rack 26, the gears 20, 24 being either integral with or splined to the shaft 21. The rack 26 is urged into engagement with the gear 24 by a spring disposed between a slipper and a cover plate 29. The gearing between the shaft 14 and the gear 24 may alternatively be worm and worm wheel or other form of gearing.
Patent GB-218179-A (GB)
Title: Improvements in and connected with lanterns for outdoor and other lamps
IPC: F21L19/00
Filed: 1923-11-10
Abstract: 218,179. Grier, T. Nov. 10, 1923. Ships' side and like lamps; lantern cowls.- A portable lamp is provided with a flame chamber A and an air or cooling chamber C which extends upwardly and encloses a long funnel B projecting into a cowl D. The flame chamber A has a glass J and a burner F slidably mounted in an opening O, and secured to the oil reservoir H is a plate G which forms a dividing partition between the flame chamber A and the air chamber C. The, back of the lamp is provided with suitable air inlets and with a sliding door M, and the cowl D is provided with perforations D<1> and is surmounted by two dome-shaped caps E.
Patent GB-187619-A (GB)
IPC: C08G2/00
Filed: 1922-10-19
Abstract: Synthetic resins are produced by subjecting an aldehyde or its products of condensation or polymerization to the continued action of a mineral acid or acid salt, in the presence of a solvent if desired and preferably at a raised temperature.  The products may then be hardened by prolonged heating at a high temperature, with or without the separation of the excess of acid.  Further hardening may be effected by fusion with metal oxide or esterification with an alcohol, such as glycerin, before or after the heat treatment.  The synthetic resins, when dissolved in the usual resin solvents, can be used as lacquers, polishes and finishes; and, being of low melting point, they can be added to other resins to render them more fusible. According to the examples, (1) acetaldehyde and sulphuric acid are heated together at 40 DEG  C. for some hours and then raised to 100 DEG  C. until a sample sets on cooling to a tough mass; the product is maintained in the molten condition, about 150 DEG  C., for a long time, and sets when cold to a hard resin; (2) crotonic aldehyde is heated with hydrochloric acid, or with sulphuric acid in the presence of acetic acid as a solvent, or acetaldehyde is heated with sodium bisulphate solution, and the products in each case are further treated as in example (1).  Specifications 16848/13, 17017/13 and 132557 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the oxidation of the resins to bleach them and to render them soluble in borax.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1434608-A (GB)
Title: Process for preparing magnesium oxide
IPC: C01F5/24
Filed: 1973-06-15
Abstract: 1434608 Preparation of MgO ENTE MINERARIO SICILIANO (EMS) ENTE DI DIRITTO PUBBLICO 15 June 1973 [27 June 1972] 28537/73 Heading C1A MgO is prepared from solutions (particularly sea-water and Mg plant effluents) by precipitating MgCO 3 /Mg(OH) 2  with a solution containing NH 3  and CO 2  substantially corresponding to (NH 4 ) 2 CO 3 , filtering and calcining. The ammonia is recovered from the mother-liquor, carbonated and re-cycled. The precipitation may be carried out at 10-85 C. using 100- 120% of the stoichiometric weight of (NH 4 ) 2 CO 3 . The starting solution may be diluted 1 : 1 to 1 : 2. Effluent from a plant producing K 2 SO 4  from kainite is exemplified.
Patent GB-964303-A (GB)
Title: Improvements in or relating to improving the physical properties of polybutadiene
IPC: B29B13/00
Filed: 1962-07-25
Abstract: Cold flow in polybutadiene containing at least 40% cis-1-4 configuration is reduced by masticating the raw, uncompounded polybutadiene for 2-30 minutes at 240-460 DEG F. while limiting the available oxygen to the polymer so that the inherent viscosity of the polybutadiene does not decrease by more than 0.85%. The mastication is preferably such as to produce high shear while excluding oxygen and such that the maximum velocity gradient is at least 150 reciprocal seconds.  In a modification polybutadiene containing at least 75% cis-1-4 configuration is masticated in the presence of oxygen under high shear conditions in which the maximum velocity gradient is at least 200 reciprocal seconds and which will produce a 3-minute product temperature of at least 275 DEG F.  The product may be mixed with the usual compositing ingredients and cured.
Patent GB-910220-A (GB)
Title: Process for refining alkyl sulphochlorides
IPC: C07C309/80
Filed: 1961-08-08
Abstract: An alkyl sulphochloride or a mixture thereof with the oil used as starting material for its production is refined by treatment with anhydrous hydrofluoric acid, e.g. at the boiling point of the HF and under appropriate excess pressure, or at 0-15 DEG C. under atmospheric pressure.  In examples, hydrogenated diesel oil fractions are sulphochlorinated, the products refined with HF, and hydrolysed with caustic soda to the sulphonate or treated with a mixture of phenol and cresol to produce the corresponding sulphonic acid esters.
Patent GB-445303-A (GB)
Title: Improvements in or relating to jewel bearings
IPC: G01R11/12
Filed: 1934-10-06
Abstract: 445,303. Thrust bearings. BRITISH SANGAMO CO., Ltd., and LAMPHIER, R. C., Cambridge Arterial Road, Enfield, Middlesex. Oct. 6, 1934, No. 28688. [Class 12 (i)] [See also Group XVIII] A jewel bearing 6 for an electricity meter or other purpose is secured in a recess in holder 2 by an internal flange in a ring 4. The latter is formed with a groove 8 into which the metal of the holder is pressed or punched, as at 10, 11. In addition the edge of the holder 2 may be pressed inwards. A paper washer 9 is placed beneath the jewel. The holder is formed with a screw thread 1 to permit adjustment.
Patent GB-228996-A (GB)
Title: Improvements in or relating to the manufacture of printing and lithographic inks
IPC: C09D11/02
Filed: 1923-11-15
Abstract: 228,996. Leadbeater, J. W., and Towler, W. A. Nov. 15, 1923. Ink.-Charcoal made from peat or coco-nut or other shells is used for making printing and lithographic ink, mixed with some or all of the following materials, namely, pitch made from peat tar, glycerine, ordinary soap dried and reduced to powder, linseed-oil varnish, linseed oil, cotton-seed oil, and resin oil obtained by distillation of pine cones.
Patent GB-379550-A (GB)
Title: Improvements in and relating to processes and apparatus for combating pests
IPC: A01M13/00
Filed: 1931-10-16
Abstract: 379,550. Fumigating. SACHS, E., 10A, Manteuffelstrasse, Lichterfelde- West, Berlin. Oct. 16, 1931, No. 28839. [Class. 81 (i).] In order to produce a spray or jet of vapour containing a substance of high boiling point for combating pests a substance is heated in a closed container and a liquid of boiling point lower than the temperature in the container is admitted so that explosive evaporation occurs on the surface of the heated substance. A suitable apparatus comprises an insulated electrically-heated vessel a for the heated liquid to which the more volatile liquid is admitted from a dosing apparatus i, controlled by a cock k, through an inlet pipe m which may be prolonged as shown so as to preheat the liquid. The vapour &c. produced is led off through an outlet f having a branch g to which a tube h is connected. The substance to be vaporized may be that which is heated in the container, e.g. sulphur or beta naphthol are so heated and vaporized by the addition of water ; or the substance may be dissolved in the added liquid. According to examples stated to be useful for treating the air in greenhouses, sulphur is heated in the container until vapour begins to be evolved and water is then added, or a mixture of nicotine, beta naphthol, glycerine and isobutyl alcohol is heated in the container and water or an aqueous solution of glycerine is added. Nicotine may be dissolved in the added water. It is stated in the Specification that it has been known to fumigate with the vapours of perchlorethane, chloroformic acid ester, decahydronaphthalene, beta naphthol, isobutyl alcohol, and glycerine.
Patent GB-1285865-A (GB)
Title: Collapsible containers and blank for making same
Inventor: HIRSCHEY URBAN CHARLES
IPC: B65D5/18
Filed: 1970-06-15
Abstract: 1285865 Collapsible containers U C HIRSCHEY 15 June 1970 [18 June 1969] 28842/70 Heading A4G A collapsible container is made from a single blank of cardboard, paperboard &c. as shown in Fig. 1 having crease lines and glued portions such that it may be folded flat for storage and readily erected to the form shown in Fig.3 to define a top loading container with a protruding handle and a top member locked to one of the side panels. The blank of Fig. 1 has fold lines 40, 28, 20, 22, 24, 32, 115, 70, 68, 58, 60, 80, 78, 108 and 106 perforated fold lines 100, 98, 111 and 112, U-shaped slits 133, 124, glued portions 38, 72, 62, 113, 112 and L-shaped bottom portions 87, 86 which are glued on their undersides. To form the blank into a container the top flap is folded along the line 40 so that the portion 38 adheres to the underside of the under lid 26 and a handle 48 protrudes through a slot 36 in the underlid. The overlid 30 is then formed by folding a portion 118 through 90 degrees along the fold line 115, folding inwardly through 90 degrees tabs 120, 122 and then folding inwardly through 90 degrees tabs 102, 104 so that the glued portions 112, 113 bounded by the perforated fold lines 110, 111 adhere to the tabs 120, 122 to form a rim 102, 118, 104 Fig. 2 (not shown) which may be collapsed flat along the perforated fold lines 110, 111 Fig.9 (not shown). The inner end panels 64, 74 are then folded inwardly along the fold lines 58, 68 and the glued portions 62, 72 are folded along the lines 60, 70 so that they overlie the portions 64, 74, with the glue uppermost Fig.6 (not shown). The outer end panels 82, 84 are then folded inwardly bringing uppermost the glued portions of the L-shaped tabs 86, 87. The side panel 16 is then folded along the fold lines 22, 24 Fig. 6 (not shown) so that the glued portions of the tabs 86, 87 adhere to the lowermost portions of the outer end panels 82, 84. The side panel 14 is then folded along the fold line 20 so that the glued portions 62, 72 adhere to the outer end panels 82, 84 Fig. 10, (not shown). The container is erected by opening the end panels 82, 84 and pressing down into a flat condition the bottom panel which was previously folded along the fold lines 22, 24, Fig. 6 (not shown), folding inwardly the top end flaps 54, 56 Fig.2 (not shown) folding over the underlid 26 over the flaps 22, 24 and then folding the overlid 30 over the underlid 26 so that the handle 44 protrudes through a slit 134 in the overlid and tabs 124 formed by the U-shaped slits 124, 133 inter engage to prevent the overlid rising. Other embodiments Figs. 11 to 16 (not shown) are described which form different lids and bottoms to the container.
Patent GB-1263842-A (GB)
Title: Method of and apparatus for induction heating of flat bodies
Inventor: YAITSKOV SERGEI ALEXANDROVICH
IPC: H05B6/02
Filed: 1970-06-15
Abstract: 1,263,842. Induction heating coils. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ELEKTROTERMICHESKOGO OBORUDOVANIA. 15 June, 1970, No. 28906/70. Heading H5H. Uniform heating of a flat rectangular body 2 is obtained using inductors 1, 3, generating orthogonal magnetic fields H 1 , H 2 , of controlled power at the same frequency and with means for periodically reversing the phase of one of the fields, the fields H 1 , H 2  acting in the plane of the flat body 2. The main inductor 1 is an elongate rectangular shape coil surrounding the body 2, preferably with its centre and end winding sections fed from separate sources of power supply. Two supplementary inductors 3, with magnetic yokes 4, are located mainly along the length of body 2, but in the direction of its width at the end sections, as shown. Thus the induced currents i 1 , i 2  oppose or reinforce one another at the end sections, to give greater or lesser heating of body 2 in these sections than in the central section, and thus the polarity of current flow in inductor 3 is periodically reversed to achieve a mean intensity of heating at the comers of body 2 equal to the intensity of heating in its central zone.
Patent GB-409761-A (GB)
Title: An improved rabbit trap
IPC: A01M23/36
Filed: 1933-01-17
Abstract: 409,761. Animal traps. MUNRO, R. B., Rumbling Bridge, Dunkeld, Perthshire. Jan. 17, 1933, No. 28918/32. [Class 5 (i).] A rabbit trap designed solely for use within the burrow comprises a tilting platform or treadplate coacting with a pivoted detent, a trapping jaw movably attached to the base plate and a spring so linked to the jaw that the latter can be subjected to or released from the action of such spring. The link comprises a bar 20 pivoted to the spring 17 and of such shape that it may engage the wire loop 18 carrying the jaw 19 or may pass through such loop : for the purpose of adjusting the tension on the loop 18, two bars 20 may be provided, one above the other. The treadplate 9 is slotted medially and is mounted on arms 8 pivoted to the base, one of the arms 8 comprising a projection 11 or notch engaging the knife edge 15 of the detent 12 ; alternatively, two detents may be provided to coact with projections or notches on each of the arms ; a stop 10 coacts with the arms 8. The jaw 19 comprises a rectangular metallic frame supporting pivoted spiked cross-bars 21, catches being provided to hold the bars 21 in positions in which the spikes lie flat upon the frame or project normally thereto. A safety locking device 31, jaw guides 26 and a strap 25, for preventing excessive movement of the jaw, are provided.
Patent GB-713109-A (GB)
Title: Improvements relating to the inlet and exhaust passages of internal-combustion engines
IPC: F02B77/02
Filed: 1951-12-11
Abstract: 713,109. Casting composite articles. N.S.U. WERKE.-GES. Dec. 11, 1951 [Dec. 15, 1950], No. 28999/51. Drawings to Specification. Class 83 (1). [Also in Group XXVII] A lining for the inlet passage of an internalcombustion engine, (see also Group XXVII], is fixed in a chill mould and the cylinder head cast around it. The lining, in the form of a tube, is he'd in place in the mould by extensions of the tube which are removed after casting.
Patent GB-290619-A (GB)
Abstract: 290,619. Bornhardt, F. May 18, 1927, [Convention date]. Addition to 282,765. R÷ntgen-ray apparatus.-The arrangement in the parent Specification is simplified by mounting the tubes B1, B2 so that the separation of the focal spots can be adjusted to the measured distance between the optical centres of the eyes of the observer. The tube B2 can be adjusted laterally by a rack and pinion mechanism R, R1 which is provided with an inter-ocular scale N. The stroboscopic viewing-apparatus M1, M2 is provided with enlarged observation apertures or it may be adjustable. In the latter case, with an accurate setting of the tubes B1, B2, the stroboscope need only be adjusted to the approximate eye spacing of the observer. The simultaneous movements of the viewing apparatus and! the tubes towards and from the screen L is obtained by linkwork F, F1 - - F4, link rods PI, P2 maintaining the parallel relationship with the screen. The plane of the eye centres need not be parallel to the plane of the screen so long as the inclination is the same as that of the plane cf the tubes B1, B2. The complete apparatus is mounted on a support S sliding on vertical pillars D1, D2.
Patent GB-688189-A (GB)
Title: Electrical measuring instrument
IPC: C25D21/12
Filed: 1951-12-12
Abstract: 688,189. Electric. control systems. UNITED STATES STEEL CO. Dec. 12; 1951 [Dec. 13, 1950]; No. 29085/51. Class 40 (i) [Also in Group XXXVI] The relative thickness of tin coating on opposite sides of a continuous strip moving in an electrolytic bath is measured by measuring the ratio of the currents supplied to the two sides of the strip. The strip S to be coated passes over a conductor roll 4 into a tank 2 containing the electrolyte and thence over rolls 66 to a second conductor roll 12, the strip passing between anodes 8T, 8B, 10T, 10B. Plating current is supplied to these anodes by identical generators 14, 16, 18, 20, the negative terminals of which are connected to the conductor rolls 4, 12, through shunts 34, 36, 38, 40. The potential terminals of the shunts 34, 38 are connected by pairs of resistances 44, 50 and 42, 52, the junctions of which are connected to a slide wire potentiometer 62. The shunts 36, 40 are similarly interconnected by pairs of resistances 66, 72 and 64, 74, the junctions of which are connected to a slide wire potentiometer 84. The negative terminals of the potentiometers 62,- 84 are connected through a resistance 86. A motor 92 adjusts the contact arms 88, 90 of the potentiometers 62, 84 and also moves a pointer 94 over a dial 96. The motor 92 is a reversible induction motor having two windings, of which one is continuously energized, from an A.C. supply L1, L2 and the other is energized from a power amplifier 98. The contact arm 90 is connected, to the vibrating contact 100 of a converter 102, the stationary contacts 104, 106. of which are connected to the primary winding 108 of a transformer 110. The contact arm 88 is connected to a centre tap 112. on the winding 108. The converter 102 is operated in synchronism with the supply voltage by means of an energizing coil 114 connected to the A.C. supply L1, L2, and is polarized by a permanent magnet so that one of its stationary contacts 104 or 106 is in contact with the vibrating contact 100 during the positive halfcycle and the other is in contact during the negative half-cycle. The secondary winding 116 of the transformer 110 is connected to a voltage amplifier 118 which supplies the power amplifier 98. The direction and speed of rotation of the motor 92 is dependent upon the magnitude and polarity of the potential between the contact arms 88, 90, which are moved to the position at which there is zero potential between them. The pointer 94 is simultaneously moved to indicate the ratio of the current supplied to the top and bottom anodes 8T, 10T and 8B, 10B and therefore the ratio of .the tin coating on the two sides of the strip S. Specification 649,490 is referred to.
Patent GB-1511794-A (GB)
Title: Process for sulphonation and apparatus therefor
IPC: C07B45/02
Filed: 1976-07-13
Abstract: 1511794 Sulphonation KAO SOAP CO Ltd 13 July 1976 [21 July 1975] 29091/76 Heading C2C A process for the sulphation or sulphonation of a liquid organic compound by means of a two-stage reaction with an SO 3 -containing gas, in which the first-stage reaction is carried out by passing, in parallel flow relation, the organic compound and the SO 3 -containing gas upwardly into the lower ends of a plurality of vertical cylinders, and the second-stage reaction is carried out by collecting the reaction product of the first stage reaction, adding fresh SO 3 - containing gas to the reaction product thus collected and passing parallel flow arrangement the reaction mixture containing the fresh SO 3  downwardly into the upper end of a single vertical cylinder.
Patent GB-653264-A (GB)
Title: Processes of purifying crude amino dicarboxylic acids
Filed: 1947-10-31
Abstract: Crude amino dicarboxylic acids are purified by neutralizing a solution of an amino dicarboxylic acid mineral acid addition salt with a solution of a mono alkaline metal salt of the same amino dicarboxylic acid.  The aqueous solutions of the mineral acid addition salt and of the alkaline metal salt are preferably decolourized beforehand.  The pH of the mixture is adjusted to that of the isoelectric point of the aminodicarboxylic acid being purified.  The "alkaline metals" mentioned are sodium, potassium, lithium, calcium, barium, strontium, the ammonium radical and magnesium.  The mineral acids mentioned are hydrochloric acid, phosphoric acid and sulphuric acid.  In the examples, crude glutanic acid obtained by the hydrochloric acid hydrolysis of wheat gluten is divided into two parts.  One is treated with caustic soda and the other with hydrochloric acid. Both resulting solutions are decolourized and are then mixed. Glutanic acid of relatively high purity is precipitated.