baber/WOPTO huggingface dataset:
Patent GB-913836-A (GB)
Title: Improvements in and relating to the synthesis of hydrogen cyanide
Inventor: BELLRINGER FREDERICK JAMES
IPC: C01C3/02
Filed: 1960-06-21
Abstract: Hydrogen cyanide is produced by vapour phase reaction, at between 350 DEG -600 DEG C., of methanol, ammonia and oxygen over a tin oxide/antimony oxide catalyst.  The reaction may be effected over a fixed or fluidized bed of neat or supported catalyst.  The catalyst may be prepared by mixing the oxides or compounds which decompose to the oxides and heating to 550 DEG -1100 DEG C. in an oxygen containing atmosphere to give a catalyst with a molar ratio of tin to antimony in the range of 0,1 to 20:1.  The preferred method is to mix oxides obtained by the action of nitric acid of suitable concentration and calcining at 550 DEG -1100 DEG C.  Other methods of preparation are referred to.  When lower oxides are used as starting materials, the calcination is effected in two separate stages, the first stage being in the range of 300 DEG -650 DEG C.  The gaseous reaction mixture is preferably diluted with steam or steam and nitrogen and contains ammonia and methanol in the mole ratio of 1:2 to 2:1 and 1 to 20% by volume of oxygen.  Hydrogen cyanide recovery, after acid scrubbing to remove ammonia, may be by absorption in water or alkali metal hydroxides or carbonates.
Patent GB-201768-A (GB)
Title: Improvements in rims of wheels for road vehicles
IPC: B60B25/06
Filed: 1922-08-09
Abstract: 201,768. Dunlop Rubber Co., Ltd., and Matthew, J. S. Aug. 9, 1922. Tyre attachments to rims. -A split detachable flange which is sprung into a groove in the rim has overlapping ends between which a tool can be inserted so that the rim is not damaged in the process of removal. The space for the tool may be covered by a flap hinged to one end, or by other means so as to exclude moisture. The flange ends are strengthened by parts E, C, Fig. 3, the latter forming a fulcrum for the tool. The joint between the ends may be stepped or diagonally cut as shown in Fig. 8.
Patent GB-500223-A (GB)
Title: Improvements in or relating to the impregnation of porous materials
IPC: B27K3/15
Filed: 1937-08-05
Abstract: 500,223. Polymerization products. DU PONT DE NEMOURS & CO., E. I. Aug. 5, 1937, No. 21660. Convention date, Aug. 22, 1936. [Class 2 (iii)] Rigid porous materials, e.g. wood, cement, marble, tile, fibre board, cork, are impregnated to a depth appreciably below the surface thereof with one or more substantially - completely monomeric polymerizable acrylic compounds and with a polymerization catalyst in the same phase, and the impregnant is polymerized. The material may be immersed, after evacuation of its pores, in a solution of the catalyst in the monomer, with or without the use of raised pressure, or in an atmosphere of monomer and catalyst both in vapour phase, and polymerization brought about. There are specified: catalysts-organic peroxides such as acetyl and .benzoyl peroxides, sulphur dioxide, hydrogen peroxide, perborates, percarbonates, oxygen, ozone; monomers-esters, amides, acids, nitriles, and salts of the acrylic series, particularly esters, amides, nitriles, and salts of alpha-alkyl acrylic acids, o.g. methyl, ethyl, propyl, and higher acrylates, methyl, ethyl; n- and iso-propyl, isobutyl, and higher methacrylates, acrylic nitrile, acrylamide, methacrylonitrile, methacrylamide, sodium and lead methacrylates. For treating wood, there may be added dyes, e.g. Oil Red O, Sudan Brown 3G, Anthraquinone Violet R Base, or alpha-p-toluidoanthraquinone; the process may be applied to veneers, e.g. using methyl methacrylate, to plywoods (which maybe further laminated), to shingles, and to chair rungs. In examples: black walnut shot-gun fore-ends, apple saw-handles, maple textile-bobbin blanks, and white pine, oak and maple blocks were impregnated with liquid methyl methacrylate and benzoyl peroxide under raised pressure; white pine and maple blocks were placed in vacuo, then impregnated with methyl methacrylate vapour and sulphur dioxide ; white pine and maple blocks were half immersed in liquid methyl methacrylate containing dissolved sulphur dioxide, impregnation taking place by capillary action; the methacrylate being afterwards polymerized by heat in each case. Specications 418,449 and 436,084 are referred to. According to the Specification as open to inspection under Sect. 91, the rigid porous materials are impregnated with one or more monomeric polymerizable organic compounds, with or without a catalyst, which is subsequently polymerized in situ. There are additionally specified: monomers-vinyl esters, olefines, styrene ; dyes-Oil Yellow F. This subject-matter does not appear in the Specification as accepted.
Patent GB-1112623-A (GB)
Title: Process for manufacturing pellets of thermoplastic resin
IPC: B29B13/02
Filed: 1965-05-25
Abstract: 1,112,623. Pelletizing. CHISSO CORPORATION. 25 May, 1965 [18 June, 1964], No. 22056/65. Heading B5A. Pellets of thermoplastic resin are made by extrusion hot-cutting the resin in air and immediately introducing the viscous pellets thus formed into a whirling stream of a cooling fluid or into a stream of cooling fluid which is subsequently whirled. Apparatus adapted to carry out the former of the above alternatives (see Fig. 2) comprises an upright cylindrical vessel having a convergent lower end terminating in an outlet pipe 3. A whirling stream of water is maintained within the vessel by an inlet pipe 2 tangentially located at the upper end of the vessel and the hot-cut pellets drop into the stream, are cooled thereby, and flow with the stream through the outlet to a collecting device Apparatus adapted to carry out the latter of the above alternatives comprises a flat bottomed vessel 4 having a part 9 of circular cross-section and water inlet tubes 6. The hot-cut pellets fall into the streams issuing from the tubes 6 and are carried to the part 9 in which the streams are whirled due to the circular configuration of said part. The cooled pellets and water are continuously removed from one side of the part 9.
Patent GB-423602-A (GB)
Title: Improvements in locks, latches and fasteners
IPC: E05B55/00
Filed: 1933-08-05
Abstract: 423,602. Locks. ROBERTS, R., 110, Balmoral Road, Mt. Eden, Auckland, New Zealand. Aug. 5, 1933, No. 22091. [Class 44] A lock, having a bolt 1 retracted by means of a band 34 which is rotated after insertion of a key, or by manual operation of a knob 11 inside the door 51, is provided with locking bars 36, 23, each movable axially to the dotted position, Fig. 9, to prevent withdrawal of the bolt 1. The outer lock 32 contains a barrel 34, provided with a collar 35, which has holes co-operating with spring-pressed tumblers 39. A spring 48 presses against a plate 37 to restore the bar 36 to its outer position, upon insertion of a key in the lock to release the tumblers from the barrel 34. The knob 11 also contains a slidable barrel 21. An oval flange 31 can be pressed inwards to enable the bar 23 to pass behind the plate 3, and tumblers enter holes in the barrel 21. The barrel 21 can only be released by means of a key which presses back the tumblers. The bolt 1 is normally retracted by rotation of either barrel 34 or 21 which causes either lugs 20 or 13 to press against the plate 3. The locking bars may be adjustable in length. A catch 8<A> may be pressed upwards to prevent retraction of the bolt.
Patent GB-358617-A (GB)
Title: Improvements in and relating to couplings, clutches and the like
IPC: F16D43/21
Filed: 1930-07-22
Abstract: 358,617. Slipping clutches. HENDERSON, A., 12, King Edward Grove, Tedding- ton, Middlesex, ANDERSON, H. P. H., 62, Elgar Avenue, Tolworth, Surbiton, Surrey, and PORTER, W. E., 9, Alton Road, Birkenhead. July 22, 1930, No. 22093. [Class 80 (ii).] In slipping clutches of the type comprising axially-separable driving and driven plates, discs, &c. and jamming balls or rollers to transmit drive therebetween, means such as spring-controlled rods are provided to locate the balls &c. in recesses in one of the members. The driving-shaft a, which is spigoted in a member b<1> on the driven shaft b, carries a cup-shaped member c engaging by inclined recesses c3 projections a<2> on a collar a<1> keyed to or integral with the shaft, the member c being pressed by an adjustable spring d. Under normal load, a coned part c<1> engages balls or tapered rollers j which jam, in both directions of rotation, in recesses b4 in the part b<1>. On withdrawal of the member c by the inclines under overload or non-automatically by a lever m &c., the balls or rollers are returned to the centres of the recesses by spring-pressed rods k, drive being, however, maintained by slipping friction plates e, f splined to a hub b<2> of the part b<1> and to the cup c respectively and pressed by adjustable springs h and shouldered plungers g, in order to lessen the shock of re-engagement of the balls &c. The part b<1> may be the axially-displaceable element and may be mounted on the driving or driven shaft.
Patent GB-880582-A (GB)
Title: Improvements in or relating to the manufacture of bonded silica bricks
Inventor: PRESSLEY HARRY
IPC: C04B35/14
Filed: 1959-06-27
Abstract: A bonded silica brick is made by firing a pressed mixture consisting of substantially pure silica, a permanent bonding agent such as Ca(OH)2, Mg(OH)2 or hydrated dolomite, a temperary binder such as sulphite lye or molasses with 0,7% to 10,5% finely divided silicon and 1% to 5% by weight of an ammonium compound such as the chloride, sulphate, nitrate or diethylamine.  The silicon may be added as free silicon, silicon carbide, ferro silicon or combinations of these and the silica is added as quartzite.  Water is added to the mixture to give the desired consistency and after drying and firing a dense bonded silica brick is produced.  If a ferro silicon addition is made the ferro silicon should have a silicon content of 80%-90% so that the iron content of the fired brick is no higher than 0,6%. Specifications 3308/03 and 755,514 are referred to.
Patent GB-205268-A (GB)
Title: Improvements in and relating to the destructive distillation of coal and other carbonaceous substances
IPC: C10B47/18
Filed: 1922-08-15
Abstract: 205,268. Davidson, T. M. Aug. 15, 1922. No Patent granted (Sealing fee not paid). Retorts.-In the distillation of coal and the like, the material is fed through a horizontal or inclined retort in a direction towards the zone of highest temperature and the gases evolved are withdrawn at a point adjacent that at which the residue of distillation is discharged so that the gases pass through the retort in the same direction as the charge to be distilled. A retort of the kind described in Specification 195,711 suitably modified may be employed, or a retort having zones of increasing temperature with a coke cooling zone in which the air supply for combustion of the gas for heating is heated' bv the hot coke. The final temperature may be between 500‹ and 800‹ C.
Patent GB-1062656-A (GB)
Title: Ignition safety apparatus for a gas burner
Inventor: KRAJC ADOLF
IPC: F23Q9/04
Filed: 1964-05-29
Abstract: 1,062,656. Electric igniters. JUNKERS & CO. G.m.b.H. May 29, 1964, No. 22220/64. Addition to 1,001,167. Heading F4F. [Also in Division F1] If the flames at the burner are extinguished the heating of the thermo-element 31 is discontinued. The energization of the electromagnet 30 is reduced and releases the tongue 24. Sparking at the electrodes 20, 21 starts again and the burner is ignited. The thermo element- 31 may be heated by a pilot burner in place of the burner 32. The switch 13 may be operated by a thermostat, a timing relay, a switching clock, a diaphragm or the like (see also Division F1).
Patent GB-791809-A (GB)
Title: Improvements in or relating to masts and towers
Inventor: RITCHIE JAMES
IPC: E04H12/02
Filed: 1954-07-29
Abstract: 791,809. Moulding resin-fibre articles. BRITISH INSULATED CALLENDER'S CONSTRUCTION CO., Ltd. Oct. 28, 1955 [July 29, 1954], No. 22228/54. Class 87(2). [Also in Group X] Resin bonded glass or other inorganic fibre members 38, e.g., those forming part of a pylon, are joined by means of glass reinforcing cords 39 projecting from their ends. The glass fibre cords are inter-woven and then wrapped with rovings, cords or tapes of glass fibres saturated with a thermosetting resin. A mould is then attached to the joint and filled with resin which may contain a filler, e.g., chopped up glass fibre, and when the mould is removed a moulded body 40 is left. Specification 745,317 [Group X], is referred to.
Patent GB-751952-A (GB)
Title: Improvements in or relating to electronic counting arrangements
IPC: H03K29/00
Filed: 1951-09-24
Abstract: 751,952. Multi-stable state circuits. ERICSSON TELEPHONES, Ltd., and BURNETT, L. C. Sept. 24, 1951, No. 22256/51. Class 40 (6). [Also in Group XIX] In arrangements for counting - electrical impulses, a voltage impulse to be counted is applied to a trigger electrode of a cold-cathode discharge tube the output from which is applied through different resistance-capacitor timing feed circuits to different electrode groups of a gaseous electric discharge device containing at least three groups of electrodes of the same kind in such manner as to cause a discharge therein to be moved by the action of potential differences from an electrode in one group of electrodes to another electrode in the same group by way of an electrode in each of the other groups; the application of a voltage impulse to the tube causes the output to apply sequentially separate voltage impulses of opposite polarity to at least two groups of electrodes of the same kind in the discharge device. The counting arrangement shown is similar to that described in Specification 712,171, [Group XIX], and comprises a multi-cathode discharge tube CTA having first and second guide electrodes GA1-GA10, GB1-GB10 and signal/ transit electrodes TC1-TC9 and SC arranged around the anode A, SC adjoining GA1. A glow normally invests SC but after start contacts SK1 are closed, a positive pulse at IPA applied to trigger electrode t will fire cold-cathode discharge tube TTA and, due to the characteristics of the network comprising resistors R2, R3, R5, R6 and capacitors C2, C3, negative pulses are applied in succession via C2, C3 to GA1, GB1 to step the glow to TC1. Successive pulses at IPA similar step the glow through TC2, TC3 ... TC9 until it again reaches SC when an output pulse is applied through C4 to OP and to a similar counting arrangement in the next higher denomination or to other counting or registering means. A potential applied to " radiant " electrode re maintains a certain degree of ionization in tube TTA. In a modification, each electrode in the signal/ transit series is maintained at a substantially, similar potential and the potentials of the guide electrodes are raised by bias batteries in series with R5, R6. In a further modification, the potentials applied to the guide electrodes are obtained from voltage dividers including R5, R6 and further resistors connected to positive supply line PA. Specification 712,171, [Group. XIX], is referred to.
Patent GB-203500-A (GB)
Title: Improvements in and relating to brake-mechanism for motor road vehicles
IPC: F16D49/10
Filed: 1922-08-16
Abstract: 203,500. Miller, J. A., and Miller, W. D. Aug. 16, 1922. Axle structures.-The casing of the brakemechanism comprises two sections A, D secured together by the set-screws or bolts G, the section D being fitted upon the torque-tube E and the section A being secured to the differential gearcase C or to another part of the torque-tube. Openings J in the casing give access to the lugs R of the brake-bands M and the brake-pulley L is arranged on the propeller-shaft F relatively to the casing in such a way as to permit the removal of the brake-band from the pulley by an axial movement. The bracket T, which supports the end of the operating brake-rod S is cast on the section A. Specification 169,596. [Class 7 (vi), Internal-combustion engines, Valves &c. for], is referred to.
Patent GB-690292-A (GB)
Title: Improvements in or relating to electrical frequency indicating meters
IPC: G01R23/02
Filed: 1950-09-11
Abstract: 690,292. Frequency measurements. PEARSON, S. O. Sept. 11, 1951 [Sept. 11, 1950], No. 22314/50. Class 37. A frequency meter comprises two circuits, both supplied from an A.C. source, the frequency of which is to be measured, and constituted so that corresponding alternating currents in the two circuits respond differently to changes of frequency, a pair of full-wave rectifiers arranged to produce two direct currents proportional to the alternating currents, and a D.C. indicating instrument having a single coil through which is directly passed the algebraic difference between the two direct currents or a proportion of that difference so as to give a reading corresponding to the frequency of the source. In the arrangement shown the A.C. whose frequency is to be measured is applied to the terminals B<SP>1</SP>, B<SP>2</SP> of the primary winding A of a transformer having two equal secondary windings A<SP>1</SP>, A<SP>2</SP>. Each secondary winding supplies a resonant circuit D<SP>1</SP>, E<SP>1</SP> or D<SP>2</SP>, E<SP>2</SP> having a rectifier bridge G<SP>1</SP> or G<SP>2</SP> in series. The outputs of the rectifiers are connected in opposition, the difference between the output currents I<SP>1</SP>, I<SP>2</SP> being applied to a D.C. instrument H. Resistances J<SP>1</SP>, J<SP>2</SP> are included to reduce the shunting effect of the rectifiers G<SP>1</SP>, G2 on the instrument H. The inductance and capacitance values are so chosen that one circuit is resonant at a frequency lower than the minimum frequency to be indicated and the other is resonant at a frequency greater than the maximum frequency to be indicated. The rectified currents I<SP>1</SP>, I<SP>2</SP> may be arranged to be equal at a standard frequency so that current then passes through the instrument H. Fre. quencies higher or lower than this produce deflections on either side of this value, and the instrument may be calibrated in terms of frequency. In a modification, the two tuned circuits are replaced by two reactive circuits, of which one has only a condenser in series with the secondary winding and the rectifier and the other has only an inductance similarly connected. Alternatively, one circuit may be reactive while the other includes only an ohmic resistance. A number of indicators H may be connected in series or parallel and situated at widely spaced points. Specification 616,325 is referred to.
Patent GB-379077-A (GB)
Title: A combined cigarette case and lighter
IPC: A24F15/18
Filed: 1931-08-07
Abstract: 379,077. Combined cigarette case and lighter. NATIONALE SOC. ANON., 1, Rue des Falaises, Geneva, Switzerland. Aug. 7, 1931, No. 22414. Convention date, May 15. [Class 75 (iii).] A cigarette case comprising two parts 12, 13, connected by a spring hinge 14, is provided with a pyrophoric lighter 11 having a spring- operated friction-wheel 25, the spring 31 being adapted to be energized during the greater part of a closing movement of the case and released to operate the wheel at the end of the closing movement. On opening the case by releasing the fastening 15, a rod 38, pivoted to the part 13, moves a slide 40 carrying a spring-pressed lever 41, the hooked end 48 of which engages a projection 32 on a rack 28 in mesh with a one-way clutch pinion 27 connected with the wheel. During the closing of the case, the lever 41 moves the rack to compress the spring 31 and, towards the end of its travel, the end of the rack depresses a spring-pressed bell-crank lever 33 and thereby releases a spring-hinged cover 22 carrying a wick cap 21. At the end of the closing movement, the lever 41 is rocked by a projection 50 thereon engaging the part 13 to release the rack, which is returned by the spring 31 and rotates the wheel for igniting the wick 19.
Patent GB-221946-A (GB)
Title: Improvements in and relating to electromagnetic relays
IPC: H01H51/30
Filed: 1923-09-06
Abstract: 221,946. British Thomson-Houston Co., Ltd., and Fitzgerald, A. S. Sept. 6, 1923. Alternating-current relays of the kind in which energization of a main winding closes a direct current or other circuit to an auxiliary maintaining winding in order to prevent chattering of the rela.v contacts. Two constructions of relay are shown in each of which the operating winding 18 and the auxiliary winding 19 are arranged upon the same core portions in non-inductive relation, the flux due to the winding 18 circulating round the U-shaped core 15 and the armature 14 and the flux due to the winding 19 moving in parallel paths in the same direction along the limbs 15 and thence through the armature 14 and along a bracket 11. Energization of the winding 18 by an alternating current attracts the armature 14 which moves to close contacts 21, 22 in the circuit 19 and also to close or open any other circuits that are to be controlled by the relay.
Patent GB-180946-A (GB)
Title: Improvements in and connected with shaving brushes
IPC: A46D1/00
Filed: 1921-08-25
Abstract: 180,946. Batting, T. G. N. Aug. 25, 1921. Bristles. fixing; india-rubber brushes.-In a shaving-brush of the kind having the bristles B formed by slitting a strip A of rubber, the strip is rolled and tied and inserted from the handle end into a body C, to which the removable handle D is afterwards secured.
Patent GB-158598-A (GB)
Title: A new or improved clip or fastener for use with soft collars
IPC: A41B3/08
Filed: 1920-04-21
Abstract: 158,598. Belman, S., (trading as Belman & Co., S.). April 21, 1920. Fastening wearing-apparel.-Relates to devices for securing the flaps of soft collars, of the kind comprising a bar having pivoted at its ends two members which project towards each other when in the closed position, and are held closed by a blade spring secured to the bar. According to the invention, the ends 6 of the blade-spring 5 are bent, as shown, to form protuberances which engage with the ends 7 of the pivoted members 3, so as to hold them open or closed. The parts 3 are pivoted between lugs 2 on the base-plate, and in use are passed through the flaps of the collar before being closed down into the position shown in Fig. 2.
Patent GB-916822-A (GB)
Title: Microbiological reduction of keto-carboxylic acids
Inventor: MUYS GERARD TUYNENBURG
IPC: A23L27/24
Filed: 1959-07-01
Abstract: Optically active hydroxycarboxylic acids and lactones are prepared by microbiological reduction of ketocarboxylic acids of the general formula R.CO.(CHR1)nCOOH (wherein R represents an aliphatic non-acetylenic hydrocarbon radical of 1-14 carbon atoms, R1 represents hydrogen or a C1-5 alkyl group and n is 2 or 3), by incorporating the ketocarboxylic acid in an aqueous medium containing a viable micro-organism having a reductive capacity, allowing reduction to proceed and separating the product from the medium.  The products are useful as fungistatic agents or flavouring substances. According to the Provisional Specification, R may represent an unsubstituted or substituted, saturated or unsaturated aliphatic hydrocarbon radical or a cycloaliphatic or mixed aliphatic-cycloaliphatic radical.ALSO:Micro-organisms having a reductive capacity, which have been inactivated in the course of microbiological reduction of ketocarboxylic acids, can be reconstituted by suspending them in a phosphate buffer solution of pH 6-8 containing glucose, for a few hours with aeration.  Less effective reconstitution can be effected by omitting the aeration, or by simply suspending the inactivated micro-organism in a new medium for the main reaction. The micro-organisms may be yeasts (e.g. Saccharomyces cerevisiae, S. fragilis, Candida dattila, C. globiformis, C. monosa, C. pseudotropicalis or C. lactis), moulds (e.g. Penicillium notatum, Margarinomyces bubaki or Cladosporium butyri) or bacteria (e.g. Sarcina lutea or Escherichia freundi).