baber/WOPTO huggingface dataset:
Patent GB-441193-A (GB)
Title: Improvements in and relating to amusement devices
IPC: G07F17/36
Filed: 1934-07-04
Abstract: 441,193. Valve relaying circuits. BRIGGS, G., 2A, Blomfield Road, Maida Hill, London. July 4, 1934, No. 35321/35. Divided out of 441,131, [Group XVIII]. [Class 40 (v)] [See also Group XVIII] The circuits of an optical projection lamp 37 and an electric motor 27 of the coin-freed fortune-telling apparatus described in Specification 441,131 are controlled by contacts 78 and 79 of a relay 70 associated with a gas discharge tube 69. The priming grid 73 of this tube is connected with an adjustable condenser 75 and a silver coating on the inside of a glass globe 24, the arrangement being such that, when the operator places his hands on the globe, a discharge occurs in the tube, and the relay 70 responds to close the contacts 78 and 79.
Patent GB-480209-A (GB)
Title: Automatic biassing circuit for thermionic amplifying tubes
IPC: H03F1/04
Filed: 1936-12-24
Abstract: 480,209. Valve amplifying circuits. MAGYAR WOLFRAMLAMPA GYAR KREMENEZKY JANOS R.T. Dec. 24,1936, No. 35402. Convention date, Dec. 24, 1935. [Class 40 (v)] An amplifying circuit of the kind in which the output valve is biassed practically to cut-off in the absence of signals, the fixed negative bias being opposed by a positive bias derived from rectification of signal voltage so that the anode current increases with signal intensity, is characterized by Coupling the output valve control grid to the anode side of the anode circuit of the preceding stage over a condenser. The invention has for its object to prevent distortion due to heavy negative bias on large signals. In the Figure, the constrol grid of an output pentode 1 is normally biassed to cut-off with no signal by the source C through the rectifier 9. With a large signal the voltage across the rectifier due to the signal is opposed to that applied from C so that the negative bias is reduced. The rectifier should be such that it passes a minimum current of 0À2 microamperes in either direction with an applied voltage of 1 volt; also the slope of the characteristic within the working range should be less than the conductance of the anode circuit of the preceding stage. The rectifier may be associated with series and/or parallel resistances to satisfy the above requirements, Figs. 2-5 (not shown). Specifications 388,292 and 439,205 are referred to.
Patent GB-1275687-A (GB)
Title: Manual positive pressure breathing device
Inventor: BIRD FORREST MORTON
IPC: A61M16/08
Filed: 1970-07-22
Abstract: 1275687 Respiratory apparatus F M BIRD and H L POHNDORF 22 July 1970 [22 Aug 1969] 35482/70 Heading A5T [Also in Division F2] A device forming part of a respiratory apparatus comprises a venturi assembly 21 having a venturi passage 27 having at one end passages 31 open to the atmosphere and a jet nozzle 29 directed along passage 27 and adapted to be connected to a source of gas under pressure, a housing 23 having a flow passage 52 connected and aligned with passage 27, said housing having an exhalation port 53 which has a seat 56 adapted to receive a manually operated valve member 54 having a conical surface 57 which closes the exhalation port, and a mouthpiece 24 having a flow passage 78 in alignment with passage 27. A nebulizer 22 may be provided between the venturi assembly and housing 23, said nebulizer having a jet nozzle 42 adapted to have air blown therethrough to draw medication up capillary tube 41, the medication being broken into small drops by ball 43 and entrained in the main air flow entering housing 23. Valve member 54 is carried on a stem support member (66) Fig. 3, (not shown), which has a passage 68 which is closed by a conical surface 71 on valve member 54. Air is supplied to a tee 74 from which it is carried by pipes to nozzles 42 and 29. When port 53 and passage 68 are closed by conical surfaces 57 and 71 respectively air passes through nozzles 29 and 42 and a flow of medicated air is supplied for inhalation by the patient through mouthpiece 24. When valve member 54 is raised to open port 53 and passage 68 substantially all the air supplied to the device bleeds through said port along with air exhaled by the patient.
Patent GB-956055-A (GB)
Title: Improvements relating to the preservation of wood pulp
Inventor: OAKES VINCENT
IPC: C07F7/22
Filed: 1961-10-02
Abstract: The invention comprises trimethyl-, triethyl-, and tripropyl-tin 8-hydroxyquinolinates, and mixtures thereof. These compounds are prepared by heating the appropriate trialkyl-tin oxide with 8-hydroxyquinoline and filtering.  The compounds may be used as preservatives for wood-pulp (see Division D2).ALSO:A self-emulsifiable fungicidal dispersion is obtained by mixing salts of trimethyl-, triethyl- or tripropyltin 8-hydroxy quinolinate with an oil soluble non-ionic wetting agent and a diluent if required. Wetting agents include polyethylene glycol esters, and diluents may be mineral oil, kerosene, white spirit and light to medium petroleum fractions.ALSO:Wood pulp is protected against wood rotting fungi by treating with trimethyl-, triethyl, or tripropyl tin 8-hydroxy quinolinate or a mixture thereof or a mixture of tripropyltin oxide or hydroxide and 8-hydroxyquinoline.  The compounds may be applied in solvents such as methanol, ethanol, acetone and dioxane and 30-50 parts per million of preservative are used.  The preservative may also be applied in the form of an emulsifiable dispersion containing a non-ionic wetting agent and if desired a diluent such as mineral oil, kerosene, white spirit or light to medium petroleum fractions.
Patent GB-853392-A (GB)
Title: Removal of slag and waste products from thermo-chemically desurfaced metal slabs
IPC: B23K7/06
Filed: 1958-11-05
Abstract: 853,392. Flame desurfacing. UNION CARBIDE CORPORATION. Nov. 5, 1958 [Nov. 12, 1957], No. 35528/58. Class 83 (4). [Also in Group XXIX] In a flame desurfacing process slag is removed from the work by a high-velocity hollow stream of water issuing from a nozzle 2, which stream first converges from its source to a vena contracta and then expands to a substantially uniform diameter equal to that of its source. The nozzle, Fig. 3, comprises an inner core 6 fitted within an outer shell 4 by radial fins 8 tapered at both their upstream and downstream ends.
Patent GB-794099-A (GB)
Title: Improvements in or relating to the manufacture of sign members
Inventor: SANDERS NORMAN THOMAS
IPC: B44B5/00
Filed: 1953-12-22
Abstract: 794,099. Ornamenting. NEEDLE INDUSTRIES, Ltd. Dec. 21, 1954 [Dec. 22, 1953], No. 35584/53. Class 93 [ Also in Group XVIII] A sign is formed on a sheet constructed of laminae 11, 12 of contrasting colours by imparting the sign thereon in relief and then removing part or all of the raised portion 14 of the background lamina 12 so as to expose the underlying lamina 11. The sign may be formed in relief on the sheet by a punch and die or by a ball-pointed or roller-pointed stylus. In the latter case the under side of the sheet is supported by a travelling member, or by a member having. a locally yieldable surface or a stationary member having recesses conforming in configuration to the marking to be made. The background lamina 12 may be caused -after deformation-to recede, as by the application of heat, to expose the lamina 11. The sheet may also be made of polyvinyl chloride layers fused together or of layers of cellulose acetate glued together. Dimensions are given in the Specification.
Patent GB-976075-A (GB)
Title: Diaphragm pumps
IPC: C07D303/16
Filed: 1963-09-10
Abstract: 976,075. Diaphragm pumps. GENERAL MOTORS CORPORATION. Sept. 10, 1963 [Oct. 14, 1962], No. 35654/63. Heading F1A. A plate 62 has integral arms 92 which are pivoted on a shaft 66 and has a member 68 engaged by a rocker arm 10 also pivoted on the shaft 66 and in contact with an actuating cam 42. A diaphragm 48 is secured to the plate 62 and to a pump casing 14 by means of a ring 50 and a cover 58 crimped on to the casing 14. A spring 82 is disposed between the cover 58 and the plate 62.
Patent GB-836260-A (GB)
Title: Improvements relating to methods of and apparatus for treating molten metals
IPC: C21C7/10
Filed: 1957-11-15
Abstract: 836,260. Degassing molten metals. DORTMUND-HORDER HUTTENUNION A. G. Nov. 15, 1957 [Nov. 29, 1956; Dec. 18, 1956], No. 35688/57. Class 72 A method of agitating a metal melt comprises repeatedly withdrawing a portion of the melt into a vessel disposed above the melt and at sub-atmospheric pressure and then rapidly increasing the distance between the vessel and the melt so that the portion is returned to the melt with high energy and the melt vigorously agitated. As shown, metal is withdrawn from a furnace 2 into a vacuum vessel. 4 so that its surface B is at a distance h from the surface of the melt L. The vessel 4 is then moved rapidly upwards, e.g. by hydraulic means, so that most of the metal in the vessel is returned to the melt. The pipe 3 through which the metal flows may be curved and the bottom of the furnace may also be shaped to increase the agitation. Specification 801,518 is referred to.
Patent GB-1499037-A (GB)
Title: Etchant suitable for etching aluminium
IPC: C23F1/36
Filed: 1975-08-29
Abstract: The etching fluid consists of a solution of alkali metal carbonate and/or alkali metal hydroxide, ferric cyanide and phosphate or phosphite. The carbonate is present in an amount from 0.1 to 2 mol/l, and the ferric cyanide in an amount between 5 g/l and saturation. The molar ratio hydroxide/ferric cyanide is less than or equal to 1. The pH of the solution is at least 11.5. The etchant produces satisfactory edge definition.
Patent GB-802440-A (GB)
Title: Improvements in the manufacture of spheroidal graphite cast iron
Filed: 1955-12-13
Abstract: The method of heat treating castings claimed in Specification 768,455 is modified by subjecting the castings to a three stage treatment comprising: (a) heating and quenching to produce a martensitic structure in the casting; (b) subjecting the casting to a nucleation treatment at 300-700 DEG C. for 1-4 hours; (c) graphitizing at 850-900 DEG C. for 3-8 hours.  In a modification of the process in which the castings have been cooled at a minimum rate equivalent to that undergone by a casting of 10 mm. thickness cast into a thin walled mould, the martensitic quenching and the nucleation treatment are omitted and the casting is subjected to graphitization at 880-950 DEG C. for 4 to 10 hours.  The treatments are stated to produce a structure comprising spheroidal graphite in a matrix of lamellar pearlite.
Patent GB-1437292-A (GB)
Title: Rotary retort furnace
IPC: F27B7/02
Filed: 1974-08-14
Abstract: 1437292 Rotary retort furnaces ALCO STANDARD CORP 14 Aug 1974 [29 Oct 1973] 35821/74 Heading F4B A rotary furnace 10 has a cluster of cylindrical retorts 21 anchored rigidly around a central cylinder 25 and secured within an outer drum 26 consisting of refractory brick 27 and a steel shell 29. The drum 26 is supported on four rollers 31, between end shells 15 and 16 within an outer jacket 11, and is rotated by the motor 35 around the axis 23. Workpieces from the hopper 40 pass through the gate 44 into the cylinder 25 and are distributed by vanes 47 and tubes 49 to the retorts 21. Augerlike screws 51 advance the workpieces along the retorts 21 for delivery to the shoot 54. Gas for the furnace atmosphere from the pipe 59 is heated by electric elements 57 and is circulated by a fan 60 aligned with a sleeve 61 on the end of the cylinder 25.
Patent GB-394990-A (GB)
Title: Manufacture of halogen derivatives of the benzophenone and anthraquinone series
IPC: C07C45/63
Filed: 1931-12-29
Abstract: Benzophenone and anthraquinone derivatives.--A halogenmethylbenzophenone of the formula <FORM:0394990/IV/1> wherein R stands for a residue of the benzene series which may be substituted, but is unsubstituted in one o-position to the CO-group, is reacted with halogen under conditions such that the methyl hydrogen atoms are completely or nearly completely exchanged for halogen atoms, and the product is subjected to the action of a saponifying and ring-closing agent, so as to form the corresponding halogenanthraquinone-carboxylic acid or aldehyde. By treating the halogenated products with an agent having a saponifying action only, such as caustic soda, halogenbenzophenone-carboxylic acid or aldehyde derivatives are obtained, and these may then be subjected to the action of a ring-closing agent to yield the corresponding anthraquinone derivatives.  Advantageous halogenation conditions comprise the presence of an indifferent diluent, such as trichlorobenzene, whilst exposing the mixture to the light of a mercury vapour lamp. In examples: (1) 2 : 5-dimethyl-4-chlorbenzophenone (prepared by condensing 1 : 4-dimethyl-3-chlorobenzene with benzoyl chloride) is chlorinated in trichlorbenzene at 170-180 DEG  C. whilst exposing to ultra-violet to give a o -hexachloro derivative; treating this product with concentrated sulphuric acid yields 2-chloranthraquinone-3-carboxylic acid, whereas by using caustic soda 4-chlorbenzophenone-3 : 6-dicarboxylic acid is first obtained and this can then be ring-closed as above; the chlorination process can be interrupted when the o -pentachloro derivative is formed, and this, on ring-closing by means of sulphuric acid, yields a mixture of 2-chloranthraquinone-3-carboxylic acid and aldehyde which are separated by adding sodium carbonate; (2) 2 : 5 : 4<1>-trimethyl-4 : 5<1>-dichlorobenzophenone (prepared by condensing 2-chloro-p-xylene with 3-chloro-4-methylbenzoic acid chloride) is chlorinated as in (1) and the product treated with concentrated sulphuric acid to give 2 : 6-dichloroanthraquinone-3 : 7-dicarboxylic acid; the 2 : 7-dichloranthraquinone-3 : 6-dicarboxylic acid is similarly prepared from 2 : 5 : 5<1>-trimethyl-4 : 4<1>-dichlorbenzophenone. Specification 10790/13 (as open to inspection under Sect. 91), [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1090719-A (GB)
Title: Electrode-tool for electrochemical machining apparatus
IPC: B23H9/10
Filed: 1965-08-20
Abstract: An electro-chemical machining tool 4 having a machining surface 5 shaped to the required profile of the workpiece 2 is provided with an <PICT:1090719/C6-C7/1> electrolyte supply chamber 6 having at least one outlet passage 7 passing through the machining surface and extending over the entire depth of the profile.  In a tool having one outlet passage only this should be positioned centrally of the profile length, and if the required workpiece profile is of twisted form, the passage may also be of twisted form such that the electrolyte is always fed normally to workpiece surface.  The supply chamber 6 may be provided with a plurality of outlet passages (70) Fig.3 (not shown) distributed over the profile length, each extending over the depth of the profile to be machined, there being positioned intermediate between each pair of adjacent outlet passages a discharge passage (71) for discharge of electrolyte from between tool and workpiece.  The sides 10 of the tool may be formed with an insulating coating.
Patent GB-407290-A (GB)
Title: Improvements in or relating to control devices for the knitting members of flat knitting machines, particularly pearl machines
IPC: D04B7/06
Filed: 1933-12-22
Abstract: 407,290. Knitting-machines. DUBIED ET CIE SOC. ANON, E., Neuchatel, Switzerland. Dec. 22, 1933, No. 36149. Convention date, Dec. 24, 1932. [Class 74 (ii).] A device for controlling positions of needles 3 jacks 4 or auxiliary members 5, particularly in purl machines, consists of a positively actuated cam 26 on the cam carriage and an elongated arresting member 30 resiliently mounted in a groove of the needle bed. This member prevents disengagement of jacks 4 and associated pushers 5 within loop sinking range and prevents also the ends of the jacks from jumping the needle bed 1. The cam 26 is raised or lowered by a striking bolt 28 on the carriage. The pushers 5 are raised for selection by jacquard controlled bits 9. The pushers not raised are advanced to working position by a bar 7.
Patent GB-1144901-A (GB)
Title: Improvements in or relating to toothed gear transmissions having means for limitingbacklash
Inventor: MURTON KENNETH EDWARD
IPC: G04B35/00
Filed: 1964-09-03
Abstract: 1,144,901. Toothed wheels. SMITHS INDUSTRIES Ltd. 3 Sept., 1965 [3 Sept., 1964], No. 36166/64. Headings F2Q and F2U. [Also in Division G3] To prevent backlash a resilient polyacetal gear 30 is radially deformable between meshing gears 26, 31, deformation being permitted by circumferentially extending curved spokes 35, connecting the rim to the hub. In addition, the included angles between the sides of the teeth of the wheel 30 and those of its meshing wheel are different, one being 90, the other 60 degrees. The gear 30 drives a gear sector 26 having an axial arm 28, Fig. 1 (not shown) engaging and adapted to vary the effective length of a spiral spring 20 controlling an electromagnetically oscillated clock balance.
Patent GB-937830-A (GB)
Title: Improvements in apparatus for cooling air or water
IPC: F24F7/007
Filed: 1961-10-09
Abstract: 937,830. Air conditioning. R. E. W. BUTT. Aug. 17, 1962 [Oct. 9, 1961], No. 36199/61. Class 137. [Also in Group XIII] In apparatus which may without modification be used to cool water or air to a temperature lower than the initial wet bulb temperature of the air supplied to the apparatus, an electrically driven fan 8 causes air to flow along two parallel paths 4 and 5, in a metal casing 1, separated by a partition 3. Air passing along the path 5 is cooled and humidified by evaporation of water from a spray 17, water-air contact being facilitated by loose packing material 24, e.g. glass wool. The unevaporated water is also cooled, and falls to a sump 15 from which a pump 19 passes it through the tubes of a finned tube heat exchanger 10 in the air path 4 and back to the spray 17. The air from path 5 passes to waste. Air passing along the path 4 is first cooled with no change of dew point temperature by the heat exchanger 10 and is then humidified and further cooled by evaporation of water from a spray 16, above loose packing 25. This air constitutes the useful output when the apparatus is used as an air cooler. Unevaporated, cooled water from the spray 16 collects in a sump 13 and is passed by a pump 18 through a valve 27 back to the spray 16 in the air cooling function. If the apparatus is used for water cooling, the air from both paths goes to waste, the valve 27 is closed, and water to be cooled reaches the spray 16 through a valve 29 and returns to use through a valve 28 and a pipe 26. Make-up water for both water circuits is from a supply 22 by means of ball valves 21 and 23 in the sumps 13 and 15 respectively. The pumps 18 and 19 are driven by the fan motor 9.
Patent GB-863336-A (GB)
Title: Improvements in or relating to transistor circuit arrangements
IPC: H03F1/30
Filed: 1958-11-11
Abstract: 863,336. Transistor circuits. SIEMENS & HALSKE A.G. Nov.11, 1958 [Nov. 13, 1957], No. 36225/58. Class 40(6) A temperature compensating arrangement including a temperature-dependent circuit element is connected to the input terminals of a transistor circuit, the arrangement also including a further circuit element which causes the resistance of the compensating circuit across the transistor input to remain substantially constant. A P-N-P transistor 1, Fig. 1, is connected in a common emitter circuit, and a voltage divider consisting of resistors 2 and 3 is connected between terminals 10 and 11 of the voltage source, the resistor 3 having a negative temperature coefficient and the resistor 2 having a positive temperature coefficient. The junction 6 between the resistor 2 and resistor 3 is connected through resistor 4 to the base electrode of the transistor 1. If the temperature rises the resistance of the negative temperature coefficient resistor 3 is reduced and as a result the potential of the junction 6 becomes more positive and the base current of the transistor is reduced tending to reduce the collector current. The values of the circuit elements are adjusted such that the reduction of collector current due to the reduction of base current balances the increase of collector current due to rise in temperature so that the collector current actually remains substantially constant. The sensitivity of the arrangement remains constant due to the resistance of resistor 4 being high relative to the input resistance of the transistor. In a modification (Fig. 2, not shown) a capacitor is connected in series with the input lead for A.C. inputs. In a second embodiment (Fig. 3, not shown) a number of circuits such as shown in Fig. 1 are all connected across a common potential divider whilst in a third embodiment (Fig. 4, not shown) the circuit is used in an amplifier for a photo-electric device, the amplifier output circuit comprising a relay shunted by a diode.
Patent GB-997333-A (GB)
Title: Production of fumaric acid
IPC: C07C51/353
Filed: 1961-10-09
Abstract: Fumaric acid is prepared by heating an aqueous maleic acid solution with a watersoluble bromine providing material having the oxidation state of the bromine less than 5, with an oxidizing agent having a standard oxidation-reduction potential of at least 1.23 volts, and in the presence of molecular oxygen. Ammonium bromide, sodium bromide, cadmium ammonium bromide, hydrogen bromide, manganese bromide and N-bromo-succinimide are mentioned and oxidizing agents are hydrogen peroxide, peracetic acid, cumene hydroperoxide, benzoyl peroxide, sodium perborate, and preferably ammonium persulphate.  Preferably air is continuously sparged through the reaction mixture.
Patent GB-929123-A (GB)
Title: Apparatus for intense cooling of gas
IPC: F25J3/02
Filed: 1959-10-26
Abstract: 929,123. Cold separation of gas mixtures. SULZER FRERES S.A. Oct. 26, 1959 [Oct. 27, 1958], No. 36230/59. Class 8(2). In apparatus for cooling and freezing out condensible impurities from crude gas prior to rectification in a column 6 and comprising in series (a) switchable groups of series arranged heat exchangers 5a, 5c, 5e and 5b, 5d, 5# having their secondary passages 4a .. 4f traversed by crude gas and their primary passages 14a . . .14f traversed by coolant gas e.g. effluent from the column 6 of which a portion traverses primary passages 19, 20. 21 of a second group of exchangers 22, 23, 24 in series (b) a compressor 30 and (c) the secondary passages 32, 34, 36 of the second group of exchangers having located between them expansion turbines 33, 35 passages 51, 52 connect points between each pair of crude gas heat exchangers to points between each two second heat exchangers. The passages 51, 52 serve to supply coolant to the primary passages of crude gas exchangers having been defrosted and thus requiring cooling from a relatively high temperature.
Patent GB-1549938-A (GB)
Title: Sectional water heating boiler
IPC: F24H1/32
Filed: 1977-08-30
Abstract: The boiler contains sections (1, 2) which contain, between water chambers, the gas passes (12, 14). The door (3) has, on the inner side, a thick insulating material (3a) in which two depressions (9a, 13) are arranged. The lower depression (9a) forms a part of the combustion chamber (9) and the upper depression (13) serves as a deflection vane for the flue gases between the two gas passes (12, 14). An uncooled gas-pass deflection plate (11) separates the combustion chamber (9) from the first gas pass (12). The door (3) with its insulating material (3a) and the depressions (9a, 13) thus assumes the task of an additional front section of the boiler. <IMAGE>