baber/WOPTO huggingface dataset:
Patent GB-504914-A (GB)
Title: Improvements in multi-stage hydraulic torque converters
IPC: F16H47/06
Filed: 1937-07-30
Abstract: 504,914. Hydraulic power transmitters. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. July 30, 1937, No. 21212. Convention date, Aug. 1, 1936. [Class 69 (ii)] The invention relates to multi-stage hydraulic torque converters of the F÷ttinger type and of the kind comprising in a single working circuit an impeller followed in the direction of circulation of the working liquid by a number of turbine blade rings each of which either (a) is separated from the next following turbine blade ring by a guide blade ring, or (b) rotates oppositely to the next following turbine blade ring, no guide blade ring being interposed. Some of the turbine blade rings, taken in pairs, may rotate oppositely, and others be separated by a guide blade ring. According to the invention, one or more of the said turbine blade rings is adapted to be withdrawn from the circuit, so as to vary the number of turbine blade rings in the circuit. One form, Figs. 1, 1a, comprises an impeller 7, oppositely rotating turbines 10, 13, and a reaction member 14. The turbine 13 can be axially withdrawn from the circuit. The turbine 10 drives through gears 19, 21 an output shaft 20 which is also driven by the turbine 13 through freewheel 55 and gears 24, 25, 26. The turbines 10, 13 may alternatively drive separate or connected axles of a vehicle. The reaction member blades 14 are pivotally adjustable, thus affording means for interrupting the torque transmission, to facilitate, e.g. the operation of reversing gear. In a modification, Fig. 4, the pump blades 91 are pivotally adjustable ; the reaction member blades 90 are not adjustable but have a one-way mounting. In a modification, Fig. 5, both of the oppositely rotating turbines 103, 105 can be axially withdrawn from the circuit; when the turbine 103 is so withdrawn, a portion thereon 110 obstructs the outlet from the impeller 102 and so impedes the circulation. In a modification (not shown), the part 110 and the reaction member 107 are both omitted. In a further modification, Fig. 6, the turbines 117, 118, 119 all rotate in the same direction. The turbine 117, which is axially withdrawable, drives the shaft 122, and the interconnected. turbines 118, 119. drive the shaft 124. The pump blades 112 are pivotally adjustable; fixed guide blades 120, 121 are provided.
Patent GB-1135519-A (GB)
Title: Improvements in and relating to the production of para-formaldehyde
Inventor: SCHUMACHER ROLF
IPC: C08G2/08
Filed: 1967-05-08
Abstract: 1,135,519. Paraformaldehyde. KARL FISCHER APPARATE U ROHRLEITUNGSBAU. 8 May, 1967, No. 21213/67. Heading C2C. [Also in Division B1] Paraformaldehyde is prepared by the continuous rectification of aqueous formaldehyde solutions under reduced pressure in two consecutive steps wherein aqueous formaldehyde is suppliedat half the height to a rectification column operating above 100 mm. Hg, and the top mixture of vapours discharged is supplied to the lower end of a second column at a pressure below 100 mm. Hg. The heating of the first evaporator may be effected by a tubular evaporator and by recycling the vapours from the concentration of the first column sump by a twin roller vacuum appliance. The product is obtained from the concentrate discharged from the foot of the first column.
Patent GB-1377312-A (GB)
Title: Benzophenone derivatives and process for their production
IPC: C07C237/02
Filed: 1973-05-04
Abstract: 1377312 Substituted amido-benzophenones CASSELLA FARBWERKE MAINKUR AG 4 May 1973 [12 May 1972] 21295/73 Heading C2C The invention comprises benzophenone derivatives of the formula and their acid addition salts, wherein R 1  and R 2  represent H or a C 1 -C 4  alkyl or alkenyl radical, R 3  represents CN, CONH 2 , COOH, COOCH 3  or COOMe where Me is a metallic cation, n is 1 or 2, m is 1, 2 or 3, and the rings A and B may be substituted. They may be obtained by reacting a compound of the formula with a compound of the formula one of X and Y represents R 2 NH- and the other is a halogen. Products wherein m is 2 or 3 may also be obtained by reacting a compound of Formula II wherein X is R 2 NH- with a compound containing an aliphatic double bond of the formula Products wherein R 3  is CN and is in the α-position in relation to the amino group of the side chain, a compound of Formula II wherein X is R 2 NH with an aldehyde or ketone of the formula and with HCN or an alkali metal cyanide. Compounds in which R 3  is carbomethoxy or carboethoxy may be saponified to give compounds in which R 3  is COOH or be subjected to give compounds in which R 3  is CONH 2 . Examples which illustrate the production of these compounds are given. Compounds of Formula I have a sedative action on the central nervous system. Some of these compounds also have muscle-relaxing and aggression-inhibiting properties. They may be administered as tablets, suppositories, capsules, emulsions or suspensions or in conjunction with diluents or carriers. 2 - (N - Methyl - N - # - chloropropionylamino)- 5-chlorobenzophenone is obtained by condensing 2-methylamino-5-chlorobenzophenone with #- chloropropionyl chloride in toluene. 2 - (Methylamino - acetamido) - 5 - ehlorobenzophenone is obtained by condensing 2-(chloroacetamido)-5-chlorobenzophenone in dioxane with methylamine in methanol.
Patent GB-156854-A (GB)
Title: Improvements in or relating to means for supplying fuel to internal combustion engines
IPC: F02M17/04
Filed: 1919-09-02
Abstract: 156,854. Neville, H. Sept. 2, 1919. Spray carburettors.-A carburettor in which the difference of pressure at two points of the engine intake is utilized to regulate the fuel valve automatically comprises a Venturi tube, a throttle valve, a diaphragm or piston, a fuel valve which tends to close and is adapted to be actuated by the diaphragm or piston, and ports or passages connecting both sides of the diaphragm or piston with chosen points in the Venturi tube, the arrangement being such that increase in the difference of pressure existing at the two points of the Venturi tube and due to the opening of the throttle valve causes an increase in the supply of fuel through the consequential opening of the fuel valve. As shown in Fig. 1, the intake pipe comprises a Venturi tube a open to the atmosphere at the end a<2> and provided at the throat with a fuel connection h and a fuel inlet valve b the stem of which rests on a diaphragm e. The chamber c above the diaphragm communicates with the throat of the Venturi tube through a port j, and the under side of the diaphragm communicates through a port k with another part of the Venturi tube, preferably near the throttle valve i and on the inner side thereof. The pressure on the underside of the diaphragm e may be regulated by air admitted through a valve l or through small ports in the cover d. An air valve may be provided in the wall of the chamber c to regulate the pressure above the diaphragm. Air may be supplied to the engine when the throttle is closed, through a port opening into the throat or other part of the Venturi tube, and controlled by a needle or other valve z, Fig. 5. The valve z may be operated independently, or may be operated by an arm w which is coupled to the throttleoperating lever v through a lost-motion device, so that continued movement of the lever v in the closing direction opens the valve z after the throttle is closed. Stops against which the arm wand the arm on the throttle valve abut may be provided to hold the valve z and throttle valve slightly open. In a modification, the throttle valve controls the outlet end of the Venturi tube, the fuel valve rests in a spindle projecting from the upper side of the diaphragm, and the port k is adjacent the end a<2> of the Venturi tube. In a further modification, which is preferably fitted vertically with the end a' of the Venturi tube uppermost, the inner side. of the diaphragm communicates through a valve-controlled port with the throat of the Venturi tube, and the fuel, controlled by a valve mounted directly on the outer side of the diaphragm, enters through the port k. In the form shown in Fig. 3, the fuel valve is carried by a piston e', the upper side of which is in communication through a passage o with the throat of the Venturi tube, and the under side of which communicates through a passage n and port k with another point in the Venturi tube. The passage n may be provided with an air inlet valve or port x<2>.
Patent GB-149304-A (GB)
Title: Process of absorbing nitrous vapours
IPC: C01B21/36
Filed: 1920-07-17
Abstract: 149,304. Soc. l'Azote Franþais, (Assignees of Guye, P. A., and Schmidt, A.). July 18, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Nitrogen oxides are recovered from gas mixtures in a concentrated state by absorbing them in anhydrous alumina which has been dehydrated at a comparatively low temperature such as 400‹ C. to form addition products such as 2Al2O3.NO2 which on heating to about 70-120‹ C. give up the nitrogen oxide. If the heating is effected in a partial vacuum, a lower temperature such as 40‹ C. may be used. The absorption is effected at a low temperature dependent on the dilution of the gas mixture. For arc gases, temperatures lower than -20‹ C. and as low as -80‹ C. may be used, whereas with concentrated gases ordinary temperatures are sufficient. It is stated that in the long run, traces of moisture which gain access to the apparatus cause the formation of hydrated aluminium nitrate which prevents absorption. When this stage is reached, the material is calcined at 400‹ C. to recover anhydrous alumina which is then again available for use.
Patent GB-941442-A (GB)
Title: Improvements in or relating to the electrochemical treatment of metallic surfaces
IPC: C25F5/00
Filed: 1960-06-20
Abstract: Metallic surfaces, such as comprising copper covered with a thin protective coating of chromium, are electro-chemically treated, e.g. by subjecting the surfaces to anodic oxidation or dissolution or cathodic reduction or deposition, using a potential difference to displace the ions through a photographic film emulsion layer previously applied to the surfaces, e.g. by conventional rotogravure processes, giving a non-uniformly permeable resist whose permeability varies over a continuous range.  In electrolytic etching, the metallic surface, which may be a printing block with a coating of silver or bichromated gelatine matrix previously exposed through a photographic film, constitutes the anode and is immersed between copper cathodes in a hydroscopic electrolyte, either employed alone or in the form of concentrated solutions such as LiCl, CaCl2, MgCl2 ZnCl2, FeCl3, CuCl2, KOOC.CH3, NaHSO4, KSCN, Na2Cr2O7 and CrO3. This electrolyte may b inert to the metal in the absence of an electric current, or may be capable of chemical attack and effecting electrolysis in which case a "positive" or "negative" potential difference is applied to increase or decrease the intensity of the treatment.  Dialysis of the gelatine may be slowed down by adding tanning products such as formaldehyde, tannin or glyoxal to the bath. The process may also be applied to the decoration of aluminium objects, the manufacture of medals and matrices for gramophone records, and the engraving of punches.
Patent GB-154356-A (GB)
Title: Method and apparatus for the fixation of atmospheric nitrogen
IPC: C01B21/20
Filed: 1919-09-03
Abstract: 154,356. Island, J. S. Sept. 3, 1919. Gases, treating with electric discharge.-In a nitrogen-oxide furnace, an arc bridging an annular space between electrodes is distended within an unrestricted space by an air current into the form of a double-walled tube having a length several times its diameter. As shown, an annular electrode 2 is provided with a renewable arcing ring 6 the surface of which is in the same plane as the end of an axial electrode 7. The adjacent surfaces of the electrodes are cylindrical so as to render the air current parallel with the axis, but the inner electrode has radial projections 12 for starting the arc, and is rotated in a bearing 10. Both electrodes are water-cooled. The arc chamber is lined with insulating material 14, and is sufficiently large to avoid interference with the arc; it terminates in a cooling-chamber 15.
Patent GB-1360596-A (GB)
Title: Control means for change-speed mechanism
IPC: F16H59/20
Filed: 1971-08-04
Abstract: 1360596 Change-speed control WILSON MILLER & CO Ltd 4 Aug 1971 [5 May 1970] 21690/70 Addition to 1201612 Heading F2D An electronic circuit, for initiating up and downshift of a change-speed, e.g. overdrive gear, on a motor vehicle driven by a spark-ignition I.C. engine comprises first and second circuits C1, R1 and C2 R2, producing voltage signals representing engine speed and torque respectively from pulses in the engine ignition circuit, applied at 4, which signals are applied in opposition to the base of a transistor TR1 forming one of a bi-stable pair TR1, TR2; controlling energization of a shift solenoid or electromagnetic valve 7, through a two-stage amplifier circuit TR3, TR4. A long time-constant provided by R1 C1 in the first circuit uses the square-wave make and break pulse of the ignition contact breaker to supply charging current related to engine speed to a capacitor C3, which, with the aid of pumping diodes D3, D4, and a leakage resistor R3, is charged to a voltage proportional to engine speed, the negative side of which is applied to the base of the transistor TR1, the emitter of which is biased negatively with respect to battery positive terminal 1 by a voltage divider R14, R16, R17, R18, across the battery terminals 1, 6, so that when the engine-speed negative signal exceeds emitter potential, TR1 conducts, causing conduction of TR2, TR3, TR4 to produce upshift. The much shorter time-constant of R2, C2 in the second circuit similarly charges a capacitor C4 from the high frequency transient at the ignition contact breaker, this charging voltage representing engine torque. The negative voltage of the capacitor C4 is applied to the emitter of TR1, whilst its positive voltage is applied through resistors R6, R7 to its base, this torque voltage being thus in opposition to the speed voltage from C3. A bias resistor R10 biases the torque signal on the emitter in accordance wth the direction of current flow in that resistor, bias being towards positive at low speeds and negative at high, so that greater torque increments are required to produce downshift at higher speeds, adjustment of a resistor R9 determining the current reversal point. In the TR1, TR2 circuit a resistor R11 renders the circuit bi-stable and also prevents hunting. Temperature compensation is provided by negative temperature characteristic resistors NTC1 and NTC2 arranged respectively near the ignition coil or engine, and in the circuit. Closure of a kickdown switch across terminals 2, 3 applies more positive potential to the base of TR1 through a resistor R5, producing downshift up to any desired speed. Connection of the terminal 2 to the capacitor-side of the resistor R4 would provide a delay in kickdown in accordance with the time required to reduce the charge in C3.  An inhibitor switch, not shown, disables the automatic control in lower ratios of the main gear. The Specification also includes the kickdown switch forming the subject-matter of Specification 8484/74.
Patent GB-188768-A (GB)
Title: Improvements in and relating to means for use in connecting electric conductors to railway and like rails
IPC: B60L5/42
Filed: 1921-08-16
Abstract: 188,768. British Power Railway Signal Co., Ltd., and Cox, H. E. Aug. 16,1921. Junction boxes.- Connecting boxes for coupling wires in conduit or wooden trunking to railway and like rails comprises a hollow metallic body 3 open at the top, tubular means 5 connecting the lower end of the body with the conduit 2 or trunking, a solid insulating bushing 9 filling and seated in the open top, a connecting cap 14 secured above the bushing and provided with a member to which one or more, wires 20 directly connected to the rail or rails may be coupled and a terminal or binding port 17 secured to the cap and within the box. The bottom of the box may be detachably screwed to it so that connecting tubes of different gauges may be employed. These tubes may screw into a T-piece 6 on conduit, or a flange piece secured upon the trunkmg and support .the fitting.
Patent GB-737577-A (GB)
Title: Improvements in or relating to ratemeter circuits
Inventor: FRANKLIN ERNEST
IPC: G01R23/09
Filed: 1952-08-29
Abstract: 737,577. Frequency discriminators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 30, 1953 [Aug. 29, 1952], No. 21764/52. Class 40 (5). The mean frequency of pulses is measured by a ratemeter circuit of the type comprising a series capacitor C1 and resistor R1 of low time constant compared with the mean spacing of the pulses, the capacitor C1 being periodically discharged by the pulses being applied to a cold cathode or like tube V shunting it, and the mean charging current measured by a meter M in series with C1, R1, and forming part of a circuit C2, R2 smoothing the discharge pulses to a steady current proportional to the pulse frequency. According to the invention a further series capacitor C3 and resistor R4 of longer time constant than C1, R1 is shunted across the circuit C1, R1 and its junction connected through a rectifier a to the capacitor C1, so that C3 is discharged simultaneously with C1 down to the extinction voltage of the tube V, but during charging of C1 the rectifier a is blocked, and C3 charges through the meter M with the longer time constant of C3, R4 and introduces a predetermined non-linearity to the meter deflection, e.g. a logarithmic indication may be obtained. Similarly connected R.C. and rectifier circuits, e.g. C4, R5, b, may be employed in succession as shown. For a logarithmic characteristic the time constants must be in geometric progression. Specification 638,883, [Group XXXVI], is referred to.
Patent GB-1126153-A (GB)
Title: Novel polygalacturonic acid derivative
Inventor: HALPERN ALFRED
IPC: C08B37/06
Filed: 1967-05-11
Abstract: 1,126,153. Analgesic compositions. MUNDIPHARMA A.G. 11 May, 1967 [17 May, 1966], No. 21942/67. Heading A5B. [Also in Division C3] The novel compound choline salicylate polygalacturonate is used as analgesic agent in pharmaceutical compositions, which may take the form of powders, tablets or capsules containing conventional excipients.
Patent GB-1492529-A (GB)
Title: Treatment of planographic printing blanks
IPC: B41N3/08
Filed: 1976-05-26
Abstract: 1492529 Treatment of lithographic plates VICKERS Ltd 26 May 1976 21945/76 Heading B6C A planographic printing blank provided with two layers of different lithographic properties and a protective surface layer is imaged and then treated with a composition which removes the protective layer, promotes the water-receptive characteristics of one layer, maintains these characteristics up to the time of printing, and promotes the inter-receptivity of the other layer. The blank is preferably a plastics material, e.g. polyester, with a vapour-deposited layer of aluminium and a protective surface material. The solvent for the protective material is acetone ethanol, monoethylene glycol, propanol, water or mixtures thereof; the desensitizer promoting water-receptivity may be gum arabic, mesquite gum, sodium carboxymethyl cellulose, sodium alginate, ammonium alginate, sodium hexametaphosphate, starch acetate, phosphoric acid or a salt, citric acid tartaric acid oxalic acid, or a citrate, tartaric or oxalate; the humectant maintaining water-receptivity is a dihydric or polyhydric alcohol, e.g. diethylene glycol, glycerine trimethylol propane, sorbitol, hexylene glycol hexanetroil, or monoethylene glycol; the ink-receptivity is promoted with a high-boiling solvent, diacetone alcohol, ethyl lactate, ethylene glycol, monoethyl ether acetate or diethylene glycol monobutyl ether. One constituent may perform two functions, e.g. monoethylene glycol, as solvent and humectant.
Patent GB-1130762-A (GB)
Title: Carrier for transportation of radioactive materials
Inventor: BONNET GEORGES
IPC: G21F5/08
Filed: 1966-05-17
Abstract: 1,130,762. Shielded containers for radioactive material. EUROPEAN ATOMIC ENERGY COMMUNITY. 17 May, 1966 [18 May, 1965], No. 21953/66. Heading B4Q. A transport flask comprises a container 1 having thick lead walls and provided with fins 2, the container being bolted to a platform 3 and surrounded at its sides and top by a box-like cover 5 having an open lower end, this cover also being bolted to the platform. The cover 5 is formed by a framework of beams 7, 8 and each of its sides and top consists of a thick layer 9 of heat insulation material. The lower edge of each side of the cover has a row of six holes 11 and the top of the cover has four rows of six holes (11a) (Fig. 3, not shown), these holes communicating with the air space between the container 1 and cover 5 to permit a natural convection circulation of air to cool the container. In the event of a fire external to the flask, the holes are automatically closed by sliding shutters 13 biased at one end by a spring 16 and retained at the other end by fusible material 14.
Patent GB-616321-A (GB)
Title: Process for the production of food preparations from potatoes and similar farinaceous tubers
IPC: A23L19/18
Filed: 1946-07-23
Abstract: Crisp, ready-to-eat food preparations are made by partly or wholly cooking potatoes or similar farinaceous vegetables, mashing, adding to the mash an edible starch, e.g. potato, arrowroot, cereal or banana flour, in amount insufficient to cause the mixture to cease to flow under pressure, converting the mixture into a form suitable for rapid and uniform drying, e.g. by extruding or rolling to rods, filaments, tubes, sheets, flakes or discs, subjecting to a short intense baking, e.g. 8-12 min. at 240 DEG  C., followed by 5-8 min. at 140 DEG  C., and finally drying to a low moisture content, e.g. at 55-60 DEG  C.  The mixture of mash and starch preferably contains dextrinised starch in addition to unbroken starch granules.  Salt and flavouring ingredients may be added to the mixture.  Specification 569,914 is referred to.