baber/WOPTO huggingface dataset:
Patent GB-970154-A (GB)
Title: Improvements in or relating to motor vehicles
Inventor: DONALDSON JAKE ALFRED
IPC: B60J7/12
Filed: 1960-02-19
Abstract: 970,154. Vehicle hoods. BIRMINGHAM SMALL ARMS CO. Ltd. Feb. 16, 1961 [Feb. 19, 1960], No. 5880/60. Heading B7B. The rear part 2 of a folding roof 1 is secured by clips 6 to a frame member 4 and a separate piece of material 7 secured to the upper surface of the part 2 is carried forward and secured to the forward edge 9 of the body panel 3. The longitudinal edges of the roof 2 and material 7 are secured together to form an envelope or pocket 10 to collect drainage water which is led away via a drain pipe. In an alternative arrangement the hood itself is carried round a tubular member and then forwardly to the edge 9 to form the pocket.
Patent GB-1486488-A (GB)
Title: Method of recovering residual energy from compressed gas when dispersing a gas in the liquid medium in a reactor
IPC: F01D15/00
Filed: 1975-02-12
Abstract: 1486488 Engine driven by pressurized gas from a reactor H MULLER 12 Feb 1975 [12 Feb 1974] 6005/75 Heading F1Q Apparatus for recovering residual energy from the gaseous effluent from a closed reactor 1, in which pressurized oxygen containing gas is passed through a liquid reaction medium within the reactor, comprises means for withdrawing oxygen containing gas at a superatmospheric pressure from above the liquid level in the reactor, an engine 12 operable by the difference in gas pressure  between the input and exhaust sides thereof,  means 13 driven by the engine for utilizing the energy output thereof and conduit means 11 for conveying the withdrawn gas to the input side of -the engine. The means 13 for utilizing the energy output of the engine may be an electrical generator which is in electrical connection with at least one electric motor. The electric motor can be used to drive ancilliary equipment, for example an agitator 2 or froth remover 5 or may participate in driving an air compreesor 7.
Patent GB-830764-A (GB)
Title: Improvements in and relating to engine and compressor units
IPC: F02B63/06
Filed: 1958-02-26
Abstract: 830,764. Crank-shafts. LIST, H. Feb. 26, 1958 [March 1, 1957], No. 6174/58. Class 80 (2). [Also in Group XXVIII] An engine and compressor unit wherein the engine cylinders 2 are at an angle of not more than 90 degrees to the compressor cylinders and their pistons are connected by rods to a common crank-shaft 6 has the following features: (a) the compressor connecting rods adjoining an engine connecting rod each engage directly adjacent crank-pins 9, 8 respectively of the same throw of the crank-shaft; (b) the radius 12 of the compressor cranks is smaller than the radius 11 of the engine cranks, the ratio preferably being 3: 4 and (c) the diameter of the compressor crank-pin 9 is larger than the diameter of the engine crank-pin 8. There are preferably two engine cylinders for each compressor cylinder, the other engine piston being connected to a separate throw of the crank-shaft.
Patent GB-471194-A (GB)
Title: Improvements in electric signalling systems
IPC: H04Q3/52
Filed: 1936-02-29
Abstract: 471,194. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 29, 1936, No. 6196. Convention date, Feb. 17, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 3, 1936.] [Class 40 (iv)] [Also in Group XL] A gas-filled discharge tube acting as a selector contains alternate layers of parallel horizontal bars and parallel vertical wires connected respectively, for example, to links SN and subscribers' lines AB, connections being established by applying an appropriate potential H to the bars and closing a loop or ground connection at the substation S. By making the layers of bars and wires slightly divergent upwards, preference will be given to the lowest bar owing to the shorter discharge path. When a connection has been made, the fall of potential in resistances W, W1 marks a link busy. The bars may be formed as concentric rings. Specification 471,193 is referred to.
Patent GB-710535-A (GB)
Title: Process for the production of polymerisation products
IPC: A61K6/00
Filed: 1952-03-10
Abstract: Polymers are made by polymerization, e.g. in bulk, solution, or aqueous media, in the presence of a catalyst comprising a salt of sulphinic acid with an organic base and optionally a percompound and an additional reducing agent.  In bulk, preformed polymers, e.g. methyl methacrylate may be present.  Specified monomers are styrene, acrylic and methacrylic acids, acrylonitrile, methacrylonitrile and methyl methacrylate.  The salts may be those of isoamylsulphinic acid, n-octylsulphinic acid, benzenesulphinic acid or p-toluenesulphinic acid with methylamine, diethylamine, dibutylamine, diisobutylamine, dihexylamine, trihexylamine, aniline, p-toluidine, piperidine, or phenyl hydrazine.  Specified percompounds are hydrogen peroxide, potassium persulphate, dibenzoyl peroxide and p-chlorbenzoyl peroxide.  Additional reducing agents mentioned are tertiary amines, aryalkyldialkyl amines such as phenyl-ethyl-dibutyl amine and phenyl-butyl-dibutyl amine, tertiary alkanolamines, such as dibutyl-monoethanol amine, butyl-diethanolamine and triethanolamine, and the catalysts mentioned in Specification 708,077.  The polymers may be used in lacquers, adhesives, impregnants for fabrics, and moulded into safety glass, filters, spectacle lenses, artificial teeth and dental fillings.
Patent GB-1216415-A (GB)
Title: Device for regulating the intermediate direct current in a static frequency changer
IPC: H02M3/137
Filed: 1968-02-08
Abstract: 1,216,415. Frequency changing. ELINUNION AG FUR ELEKTRISCHE INDUSTRIE. 8 Feb., 1968 [10 Feb., 1967], No. 6278/68. Heading H2F. In a frequency changer comprising an inverter 38 supplied from a rectifier 20 . . . 25, the intermediate direct current is stabilized by alternately charging and discharging a capacitor 31 in series with the inverter 38 under control of a bridge of thyristors 27 . . . 30, an inductor 36 and free-wheeling diode 35 being included for smoothing. The bridge of thyristors 27 . . . 30 is preferably shunted by a further thyristor 31 which is made continuously conductive when full output is required. The inverter current is monitored by resistor 37 and determines the firing times of the regulating thyristors 27. . . 30. Each time a pair of thyristors 28, 29 or 27, 30 is triggered, capacitor 32 charges or discharges through the inverter 38 so that the inverter input voltage has the form of a spaced sawtooth (Fig. 3, not shown) the average value of which is determined by the trigger control circuit 40. A damped resonating inductor 33, 34 is included. The inverter 38 may include a resonant circuit 39 supplying an inductive heater. A plurality of bridges 27 . . . 30 may be connected in parallel and triggered sequentially.
Patent GB-549392-A (GB)
Title: Improvements in or relating to the production of cellulose derivatives
IPC: C08B15/06
Filed: 1941-05-16
Abstract: 549,392. Cellulose derivatives ; treating filaments, foils &c. ; di-cyanamides. DREYFUS, H. May 16, 1941, No. 6327. [Classes 2 (ii) and 2 (iii)] Cellulose derivatives are obtained by reacting cellulosic materials with an organic compound containing two cyanamide radicals. The cellulosic material may be cotton linters, chemical wood pulp, cotton yarns, regenerated cellulose material obtained by the viscose or cuprammonium process or by the saponification of cellulose esters, or material made of an organic derivative of cellulose containing free hydroxy groups. The process is applicable to the treatment of yarns, foils, and other formed articles. The safe ironing temperature and melting point of cellulose ester or ether materials is raised by the treatment. Yarns of high tenacity, in hank or fabric form, obtained by stretching acetone-soluble cellulose acetate yarns in wet steam or hot water under pressure, or yarns of regenerated cellulose made by saponification of such stretched yarns, may be subjected to the di-cyanamide treatment. The cyanamide used may be ethylene or hexamethylene di-cyanamide, ##<SP>1</SP>-di-cyanamido-diethyl ether, ##<SP>1</SP>-di-cyanamido-diethyl sulphide, or a di-(#-cyanamido-ethyl) benzene. The reaction may be effected by heating the materials in a solution of the di-cyanamide, e.g. at 50- 150‹C. The reaction may take place with the initial material in solution. Cellulose acetate in fibrous or powder form may be refluxed with a solution of a di-cyanamide in acetone, and on completion of the reaction, the product may be precipitated by the addition of a non-solvent or separated from the reaction mixture if it has become insoluble therein. Formed articles such as filaments and foils may be treated in a, reaction medium which does not deleteriously affect their physical condition. They may be treated with a solution of a di-cyanamide in alcohol, acetone, or chloroform, and the cyanamide may be concentrated on the materials by evaporation. The di-cyanamides may be obtained by hydrolysing the correspon ing di-thioureas which may be obtained by reacting diamines with thiocyanates particularly alkali thiocyanates. The di-thioureas may be hydrolysed by caustic soda or other strong base and this reaction is facilitated by the presence of a lead compound such as lead acetate or lead oxide. The Provisional Specification describes also the treatment of cellulosic materials with monoalkyl cyanamides in which the alkyl groups contain a large number of carbon atoms.
Patent GB-325124-A (GB)
Title: Improvements in and relating to gramophone or loud-speaker horns and the like
IPC: G10K11/02
Filed: 1929-02-26
Abstract: 325,124. Rosen, E. E. Feb. 26, 1929. Sound - magnifying appliances. - A horn f o r gramophones comprises a throat portion dividing into two channels 2 and 3 of gradually increasing cross section which re-unite in a common flare 5, a wedge-shaped partition 6, which terminates well back from the mouth of the flare, joining the two conduits. The portions 2 and 3 contain two semicircular bends 2b, 2c and 3b, 3c which may or may not be in a plane parallel with the mouth of the flare. The sound waves are reflected into the sound chamber by reflectors 2e, 3e. The walls of the sound chamber may be strengthened by embossing or by the addition of strengthening pieces.
Patent GB-649143-A (GB)
Title: Impulse operated selector switch for alternating and direct current
IPC: H01H51/08
Filed: 1948-02-28
Abstract: 649,143. Electromagnetic switches. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 28, 1948, No. 6332. Convention date, Oct. 8, 1940. [Class 38(v)] A predetermined number of impulses delivered to an electromagnet 32 causes the reciprocation of its armature 36 and the step-by-step rotation of a ratchet wheel carrying a contact arm 22 till the arm engages a selected; contact 16 and so prepares a circuit 17 which is only completed through contacts 73, 74 and 85, 86 when an arm 82 of timing mechanism 83 which has been depressed by the armature 36 is allowed to rise slowly sufficiently to close the contacts 73, 74. The contacts 85, 86 were previously closed by the energization of an electromagnet 56 from a source between lines 105, 107 when contacts 75, 76 were closed by the first actuation of the armature 36. The arm 82 continues to rise after the closure of contacts 73, 74 till after a further time interval the contacts 75. 76 open causing de-energization of magnet 56, opening of contacts 85, 86 and breaking of the selected circuit 17. The de-energization of magnet 56 also causes a check pawl to be moved away from the ratchet wheel so that a spring returns this and the contact arm 22 to starting position. The timing mechanism 83 comprises a train of gearing connected to the arm 82 and which is spring loaded by rachet and pawl mechanism.
Patent GB-413796-A (GB)
Title: Improvements in automatic cookers for waffles and the like
IPC: A21B5/02
Filed: 1933-03-02
Abstract: 413,796. Cooking - apparatus. SATCHWELL, L., Farnham Road, Slough, Buckinghamshire. March 2, 1933, No. 6334. [Class 28 (i).] In an electric hot-plate for cooking purposes, or in waffle irons, the increase in the dimensions of the plate consequent on the plate rising to a predetermined temperature is utilized to interrupt the heating circuit. As shown in Fig. 1 the hot plate 1, which is made of a material having a high coefficient of expansion, is heated by an element 2 preferably having two windings, i.e., a high resistance winding giving just sufficient heat to maintain the temperature of the plate, and a low resistance winding which is brought into and cut out of the circuit to supply the additional heat to effect cooking. A rod 3 of non-expanding metal, e.g., that known by the Registered Trade Mark " Invar," is secured at one end to a lug 4 at one end of the plate 1. The other end of the rod 3 is freely movable in a depending lug 5 and carries a bracket 6 having an adjusting screw 7 which bears on the arm 9 of a switch 8 of which the lug 5 forms the base. The arm 9 is pivoted in the bracket 10 and is spring loaded in such manner that the contacts are closed when the plate is cold. In a modification, Fig. 3, the member 3 is in the form of a bent strip which is looped under a pin 12 connected to the bracket member 6 of the switch. In Fig. 3, the invention is applied to waffle irons, the movement of the switch 8 being arranged to light a lamp 18 or to energize a bell or buzzer to give warning of the completion of the cooking. The switch used may be that described in Specification 305,077, [Class 38 (v)]. Reference has been directed by the Comptroller to Specification 354,282, [Group XXXVII].
Patent GB-459418-A (GB)
Title: A process for the desulphurisation of gases
IPC: C10K1/12
Filed: 1936-03-02
Abstract: <PICT:0459418/III/1> Hydrogen sulphide and sulphur dioxide are removed from gases with the production of sulphur by introducing hydrogen sulphide and sulphur dioxide with intense mechanical agitation into a solution of a thiosulphate, whereby the thiosulphate content of the solution is reduced to a predetermined degree and a substantially neutral reaction and the original content of sulphur is maintained in the solution (sulphur being precipitated), and then treating the gases to be freed from sulphur compounds with this activated solution.  Under the above conditions, it is stated that sulphur dioxide and thiosulphate react to form an oxide of the thiosulphate, e.g. Na2S2O3.O and sulphur, and this oxide then reacts with hydrogen sulphide to reform thiosulphate and a further quantity of sulphur, no polythionates being formed.  In an example of a gas-washing process, gases containing hydrogen sulphide and a thiosulphate solution containing sulphur dioxide are introduced into vessel I, where the solution is activated, and reacts with 90--95 per cent of the hydrogen sulphide.  The solution is filtered from sulphur and passed to vessel II together with the untreated hydrogen sulphide, wherein the purification is completed.  The solution then passes to vessel III where it is charged with sulphur dioxide and immediately returned to vessel I.  The flow of solution from vessel to vessel is arranged to be continuous, only a small amount passing to the second phase.  If it is desired only to produce sulphur from hydrogen sulphide, and not completely purify the gases, the three phases may be combined into one.  The volume and concentration of the thiosulphate solution are regulated in accordance with the absorption coefficient of hydrogen sulphide and the flow velocity of the gases, and the process may be carried out at raised temperatures.  Gases containing sulphur dioxide can be desulphurized if a source of hydrogen sulphide is available. Other compounds such as sulphides, sulphites or polysulphides which are converted into thiosulphate during the reaction may be used.  Finely-divided a -sulphur is precipitated, and is readily soluble in carbon disulphide.
Patent GB-811810-A (GB)
Title: Improvements in apparatus for determining and measuring thump
IPC: G01M17/02
Filed: 1957-02-26
Abstract: 811,810. Testing tyres. UNITED STATES RUBBER CO. Feb. 26, 1957 [May 28, 1956], No. 6389/57. Class 144 (1). [Also in Groups XIX and XXXVIII] Apparatus for determining irregularities in the rolling resistances to a motor tyre comprises a roller 10 pressed against the tyre by two cantilever-mounted leaf springs 11, whereby variations in rolling resistance produce lateral movements of the roller 10, the rate of change being indicated by the output from a coil 17a movable in the field of a permanent magnet 20, the coil being attached to the roller by an arm 18. The rate of change of rolling resistance is said to be indicative of the tendency of the tyre to produce a thumping noise in use.
Patent GB-566511-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D1/143
Filed: 1943-04-21
Abstract: 566,511. Slicing-machines. HOBART MANUFACTURING CO. April 21, 1943, No. 6408. Convention date, Aug. 22, 1942. [Class 28 (ii)] The base of a slicing-machine is so shaped as to form a slice-receiving tray 13 and a higher cover portion 16 protecting the rods 20, 21 of the sliding food carriage 35, from food dropping, the tray 13 also extending as in Fig. 5, beyond the plane of the disc knife 90 where cutting is done, and forming a trough 13A to receive food scraps dropping from the knife. The carrier 51 for the thickness gauge plate 50 is supported from beneath the cover portion 16 of the base on skewed guide rods 60, 61, Fig. 6, slidable in bosses in the base. An extension 55 of the gauge plate carrier 51 overlies the ends of the rods 60, 61 to collect and protect them from food particles, preferably throughout the range of adjustment of the gauge plate. The extension guard 55 preferably forms a groove sloping downwardly towards the knife and terminates in a lip 56 from which the food particles and juice drop directly on the slice-receiving tray surface. The food carrier 35, Fig. 4, is bolted at 37 to the upright flange 31 of an undercarriage or guide 24 sliding on the rods 20, 21. Binding of the undercarriage 24 on the rods 20, 21 is prevented by a flexible connection 27 comprising a rubber-lined bearing 26 with compression adjustment screw 30. The food holder comprises a trough 38, 39 (with thumb rest 40) into which is swung a pusher plate 41 carrying the operating handle 43. The pusher plate 41 can be held up out of the way by spring 49 and pin 48 to permit of direct manual feed. Slice thickness is set by a lever 76 operating an underlever with pin and slot 68, 70, causing actuation of the slide rod 61, to which is coupled the gauge plate. The motor 81 and its knife-driving mechanism is encased in housing 80, Fig. 3, integral with the base and closed by a pivoted cover 141. The knife grinder unit 145 is also enclosed in this housing, the bracket 146 of which is formed as a guard underlying the grinding wheels and collecting the particles of stone and metal. The grinder is attached in operative position by the overhanging part 152 and a bolt 153 securing it to the gauge plate 50 which can be adjusted to or from the knife as previously described. Fig. 9 shows the knife guard in two semicircular parts 105, 106, having flanges (107 &c.) received in a groove 100 formed in the housing 86, 80 and on turning each half round, becomes locked by a lug engaging the flange. The guard parts have hand grip holes 109 which also allow a knife cleaning rag to be inserted. The second section 106 is secured by a spring-pressed locking pin 118 which has a finger-operable portion 120 for release. The second section locks the first section 105 in position. The two sections form a dished guard for the knife, the radially extending portion 125 masking most of the knife edge and receiving food particles from the knife and dropping them on the tray.
Patent GB-828038-A (GB)
Title: Improvements in or relating to discharging apparatus
IPC: B63B9/00
Filed: 1958-02-28
Abstract: 828,038. Slipways. HOESCH WERKE A. G., and BERG-UND HUTTENBETRIEBE A. G. FUR. Feb. 28, 1958 [April 27, 1957], No. 6581/58. Class 68(2) A slipway comprises a pair of rails 3 on which run a carriage 2 which has wheels 11, 12, 13, 14, 15 and 16. At the upper end the slipway is crossed by a second rail track 10 on which run the units 8 and 9 of a tipping apparatus which receives load containers 1 from the carriage 2. The rails 3 are continuous at the intersection with the sea-ward rail of the track 10 but are interrupted at the other rail and the wheels 12 and 15 at one side of the carriage and 13 and 16 at the other side co-operate to bridge the resultant gap. The section 17 of track 10 is movable on a trolley 18 which is pushed ahead by the carriage 2 as it approaches the top of the slipway and is left in its operative position as the carriage runs down the slipway.
Patent GB-352388-A (GB)
Title: Photo-electric apparatus
IPC: H01J43/16
Filed: 1930-02-27
Abstract: 352,388. Photo-electric cells. TOULON, P. M. G., 173, Boulevard Haussmann, Paris. Feb. 27, 1930, No. 6593. Convention date, March 15, 1929. [Class 39 (i).] In a photo-electric cell means such as grids are provided for producing and utilizing a secondary emission of electrons from the anode. As shown, a grid 2 near a cathode 1 of potassium hydride is maintained at a positive potential, for example of 40 volts, sufficient to prevent electrons from returning to the cathode; a potential of several thousand volts is applied between the grid 2 and the anode 5, which may be coated with oxides of rare earths, whereby an intense secondary emission of electrons from the anode is obtained. A grid 4 near the anode is maintained at a higher potential than the anode, and receives the secondary electrons so as to produce a current in an output circuit 8, 9. Additional grids 34, 35 may be provided for modulating the discharge. The potentials may be derived from an alternating-current supply through a transformer having several secondary windings with rectifying and smoothing devices.
Patent GB-1531353-A (GB)
Title: Device for producing concert effects
IPC: G10H1/10
Filed: 1976-02-19
Abstract: 1531353 Electronic musical instruments ROLAND CORP 19 Feb 1976 [6 March 1975] 06602/76 Heading G5J In an arrangement for providing chorus effect with no attendant vibrato (amplitude modulation) the signal path is split each part passing through a variable delay circuit A, B, C, D where the signal is phase modulated by a sawtooth waveform A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>, D<SP>1</SP> respectively and then an amplitude modulator W, X, Y, Z respectively. The modulating signals A<SP>1</SP>, B<SP>1</SP> are mutually inverted and effectively shift the frequency up and down respectively by a fixed amount during the period Ta. Similarly G<SP>1</SP>, D<SP>1</SP> are inverted and are 180 degrees out of phase with A<SP>1</SP>, B<SP>1</SP>. The amplitude modulating signals WX<SP>1</SP>, YZ<SP>1</SP> are 180 degrees out of phase and are arranged to provide minima of the modulation envelopes during the small flyback portion Tb of the sawtooths. Hence when the resultant signals AGs and GGs are mixed the result is a constant amplitude signal whose frequency is shifted upwardly from the input frequency and similarly combination of BGs and DGs provides a signal shifted downwardly from the input frequency. The two constant amplitude signals may be combined aurally via separate loudspeakers or electronically in an amplifier to provide the desired chorus effect. The delay devices A, B, C, D may be charge coupled devices with variable shifting frequency applied by oscillators AM, BM, CM, DM frequency modulated by the sawtooth waves.