baber/WOPTO huggingface dataset:
Patent GB-629850-A (GB)
Title: Improvements relating to the cooling of the gaseous charge of internal combustion engines
IPC: F02B33/00
Filed: 1947-12-15
Abstract: 629,850. Cooling charge. CROSSLEY BROS., Ltd., and CARTER, H. D. Dec. 15, 1947, Nos. 32969/47 and 28227/48. [Class 7 (ii)] A refrigerater c cools the air intake supply of a compression ignition oil engine, the refrigerant being compressed and/or circulated by a pump f coupled to an exhaust-driven turbine h. Scavenging air from an engine-driven pump a passes through a preliminary water-cooler b and the refrigerator c to the intake manifold d. The refrigerating system comprises the refrigerater c, a condenser e and the pump f which is preferably a multi-stage turbo-compressor but may be a gear driven piston type compressor.
Patent GB-658799-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J17/00
Filed: 1948-12-22
Abstract: 658,799. Lamp caps. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 22, 1948, No. 33034. Convention date, Feb. 27. [Class 38 (i)] [Also in Group XL (a)] A discharge lamp 11 comprises a vitreous refractory translucent tube 12 preferably fused quartz, magnesia or alumina to the ends of which larger glass chambers 15, 16 are sealed (see Group XL (a)). The chambers are completed by sealing thereon metal caps 18, 19 to which are brazed the lamp electrodes 13, 14 in a non-oxidizing atmosphere.
Patent GB-282225-A (GB)
Title: Improvements relating to spectacles
IPC: G02C5/22
Filed: 1926-12-31
Abstract: 282,225. Maclean, W. Dec. 31, 1926. Spectacles.-Spectacle frames of non-metallic materials have the side members connected by the lens frames by universal joints. In the example given the universal joints are constructed of loops or rings 5 of wire, permitting movement of the sides in any direction. The loops are made of resilient material and arranged eccentrically to form toggle springs to assist in retaining the sides in either of two positions.
Patent GB-428240-A (GB)
Title: Improvements in and connected with mechanical stokers
IPC: F23H11/04
Filed: 1933-11-25
Abstract: 428,240. Travelling grates. TUTT, R. N., Babcock House, Farringdon Street, London. Nov. 25, 1933, No. 33049. [Class 51 (i)] A travelling grate in which the links or bars 5 are supported on bulb irons 4 carried by the driving chains 2, the carrier rails 1 are provided with a ramp or ramps 3 so shaped as to cause the driving chains and the bars 5 to rise and disturb the fuel bed and also form an opening 6 across the full width of the grate between the ends of adjacent bars for the admission of air.
Patent GB-286404-A (GB)
Title: Improvements relating to the distillation of carbonaceous or bituminous substances
IPC: C10B49/08
Filed: 1926-12-31
Abstract: 286,404. Evans, W. E., (Kohlenveredlung Akt.-Ges.). Dec. 31, 1926. Coking processes. -In the low temperature distillation of powdered or granular fuel which passes through the distilling chamber in suspension in a gas. hot producer or water gas is used immediately after leaving the gas producer and is fed into the distilling chamber together with the powdered fuel through a common nozzle. A number of distilling chambers may be used whereby distillation is effected in stages. When two rertorts A, B are used the powdered fuel from a hopper 4 is projected by hot combustible gas through a nozzle 3 into a shaft 2, the residue falling through the annular space surrounding the shaft and being collected with the distillates in a dust separator 10, from which the distillates pass through a condenser 11, the gases leaving by an outlet 14 and the tar by an outlet 15. The incompletely coked residue is transferred to a second retort B where it is treated in a similar manner by hot gases from a producer 26 entering by a nozzle 20. The distillation gases and unconsumed coke pass to a dust separator 23. the powdered coke from which is fed by a pipe 27 to the producer 26, the gas passing by a pipe 25 to a pump 9 and heater 6 before entering the retort A. In an alternative form of retort, Fig. 3, the heating gas and fuel are blown by nozzles 36 through inclined tubes 32 opening into a dust separator 33. A heating gas may be conducted through the space 43 surrounding the tubes to heat the latter on the outside.
Patent GB-194390-A (GB)
Title: Improvements in attachable spouts for tins
IPC: B65D47/00
Filed: 1921-12-09
Abstract: 194,390. Rosenberg, B. Dec. 9, 1921. Opening by cutting; spouts.-A spout adapted to be attached to a petrol tin &c. comprises a tubular body 1 containing a chamois-leather filtering cone 2 supported on a gauze 4, and vent tubes 18 by-passing the filter as shown in Fig. 2, and arranged so as to afford a grip for manipulating the spout. The connection with the' body may be by means of an adapter 7, Fig. 1, secured on the usual screwed mouth of the can, or bv means of piercing points 10 and cutting edges 11 forming a hole in which a screw-thread 12 takes, the joint being made tight by a washer 13. When this device is used with a screw-top can the washer 13 is omitted, the joint then being made by a thin washer 14. A dust cap 9 may be provided with the adapter 7. The ends 16 of the vent tubes may form a stop which ensures that the last stage of cutting out the hole in the tin must take place by rotation to ensure that the thread is not driven into the tin. The spout is completed by a hose member 20 and a nozzle 21 and either a cap 22, Fig. 1, or a second strainer 27, Fig. 3, the arrangement in the second case being such that the part 21 is held by a clip to the body 1, the hose part being then sharply bent at 25 to form a seal so that the spout mav be left on the can. Specifications 177,924 and 186,183 are referred to.
Patent GB-1336786-A (GB)
Title: Apparatus and method for winding a running length of thermoplastic web into a series of rolls and rolls of web made therefrom
IPC: B65H19/22
Filed: 1971-07-15
Abstract: 1336786 Winding webs E I DU PONT DE NEMOURS & CO 15 July 1971 [23 July 1970] 33218/71 Heading B8R In a web winding operation, the web running to full core is severed and the leading, severed end heat bonded to a replacement core. The web 31, which may be of thermoplastics material, issues continuously from a processing unit (not shown) and is fed through an accumulator unit 1 and via forwarding means 2, e.g. drive rollers, edge trimmers and a tensioning device, to a wind up unit 3. The web is normally wound at position 3 on a core, supported between air actuable chucks on a rotatable turret 8, a rider roll 6 facilitating this winding operation. When a footage sensor detects that the core is nearly full, the turret 8 is rotated, clockwise as shown, through 270 degrees to position 2 thus moving an empty core, initially at position 1, to position 4. The rider roll is raised, the forwarding means halted and the accumulator begins to collect the issuing web. Powder, which may be present on the web, is cleaned off in the vicinity of the empty core at position 4 by a temporary rotation of that core. A severing unit 4 on an arm 36 is then lowered until a clamp 42 and rubber aprons 46, 47 hold the web to the stationary empty core. A heated wire 41 cuts the web and heat bonds it to the core. The wire is then retracted and an air current cools the web. The severing unit is raised when the accumulator is full to a pre-determined extent, the turret rotates anticlockwise through 90 degrees and the empty core is rotated, at the wind-up position 3 and in contact with the lowered rider roll 6, firstly at overspeed to empty the accumulator, and then at normal winding speed. The above sequence of events is effected by a pneumatic control circuit incorporating pressure valves, electrical limit switches, and a cam sequencer.
Patent GB-1216290-A (GB)
Title: Fuel cells employing gas diffusion electrodes and liquid electrolytes
IPC: H01M8/04223
Filed: 1968-02-21
Abstract: 1,216,290. Fuel cells. SIEMENS A.G. 21 Feb., 1968 [23 Feb., 1967], No. 33233/70. Divided out of 1,215,630. Heading H1B. A method of operating a fuel cell with a porous, gas-diffusion electrode and a liquid electrolyte comprises temporarily establishing communication between the electrolyte and a gas at a higher pressure than that of the electrolyte when it is not in communication with the gas, at a location remote from the electrode so raising the hydrostatic pressure of the electrolyte and flushing the pores of the electrode therewith. Preferably the gas is the reaction gas and the communication of the gas with the electrolyte is controlled by an electromagnetic valve which is automatically operated when the electrode potential falls to a preselected value.
Patent GB-479889-A (GB)
Title: Improvements in means for regulating steam and gas turbines
IPC: F01D17/18
Filed: 1936-12-03
Abstract: 479,889. Fluid - pressure servomotor - control systems. AKTIEBOLAGET GOTAVERKEN. Dec. 3, 1936, No. 33236. Convention date, Dec. 7, 1935. [Class 135] [Also in Group XXVI] The working-fluid supply to a turbine rotor 21 is regulated by means of guide vanes 3, pivotally supported on pins 4, which are controlled automatically to vary the amount of fluid admitted. A disc 10 has an arm 6 to pivot the vanes 3 as a piston 34 is moved vertically to rock a control shaft 9. A governor 28 has a sliding sleeve 29 which controls the position of a double piston 31 in a servomotor, which admits oil to the under-side of the piston 34 when the turbine slows down due to increased load, and the sleeve 29 drops. Simultaneously the piston 31 brings the space above the piston 34 into communication with an oil outlet. The upward movement of the piston 34 opens the vanes 3 and admits more fluid to the turbine. If the sleeve 29 still continues to fall, the piston 31 approaches its highest position and oil under pressure is admitted below a piston 35 to open an overload valve 15 to admit fluid of a higher pressure than that in the chamber 2, to the turbine, via an inlet 16. The invention is not restricted to a turbine having one bladed rotor. A pressure governor may be used in place of the speed governor 28. A pressure regulator, which adjusts the vanes 3 in dependence of the pressure in the delivery conduit of a pump or compressor driven by the turbine, may be used.
Patent GB-649634-A (GB)
Title: Process for the preparation of arylcyanamides
IPC: C07C233/00
Filed: 1948-12-24
Abstract: Arylcyanamides are prepared by treatment of an N-aryl-S-alkyl-isothiourea with a strong base and separating the mercaptan formed from the cyanamide.  The aryl group may be mono- or poly-cyclic, e.g. phenyl or naphthyl, and may be substituted.  The strong base may be caustic soda or potash, or organic such as lower aliphatic amines, and it may be used with water, an alcohol such as methanol or ethanol, or aqueous alcohols.  The mercaptan is preferably removed by heating, and the cyanamide isolated by acidification, e.g. with acetic acid.  In the examples (1 and 2) p-chlorophenyl cyanamide, and (3) b -naphthyl cyanamide are prepared from the corresponding S-methyl-isothioureas.  The N-aryl-S-alkyl isothioureas, which may be used without isolation, are prepared by alkylation, e.g. with methyl sulphate, of the aryl thioureas.
Patent GB-1381670-A (GB)
Title: Core for a sandwich structure
IPC: B64C3/00
Filed: 1972-07-17
Abstract: 1381670 Honeycomb laminates SOC  NATIONALE INDUSTRIELLE AEROSPATIALE 17 July 1972 [26 July 1971] 33284/72 Heading B5N [Also in Division E1] A honeycomb core, for a composite sheet in the form of a sandwich comprising walls of sheet material enclosing the core, is formed by a number of corrugated strips A 1 , A 2  &c. the individual corrugations of which are each formed with an entry portion a, to the space within the corrugation which is narrower than the maximum width b of the corrugation, the strips being juxtaposed such that all the convex portions of the corrugations are in contact with both sides of the corrugation inlets in a similar adjacent strip. The strips may be of metal, e.g. titanium, or of plastics, and may be welded or otherwise secured together at the points of contact. The shape of the corrugations is as shown in Fig. 1 or Fig. 5. The corrugations may form opposite loops which are of different widths (Fig. 2, not shown).
Patent GB-685991-A (GB)
Title: Improvements in or relating to automatic frequency-control circuits for valve oscillators
IPC: H03J7/04
Filed: 1947-12-17
Abstract: 685,991. Automatic frequency control systems. PHILIPS ELECTRICAL, Ltd. Dec. 17, 1947 [Sept. 20, 1946], No. 33302/47. Class 38 (iv). Relates to frequency control systems for valve oscillators of the kind in which the output is mixed with that of a standard frequency source to produce a beat frequency which is used as a control voltage to correct the controlled frequency; and comprises means for enlarging the " catching " zone of the system by deriving a slowly-changing control voltage which is rendered inoperative as soon as the valve oscillator comes into step. As shown in Fig. 1, the mixer valve M is fed on one grid 4 with the standard oscillations or pulses, and on the other grid 6 with oscillation from the controlled valve oscillator 0. The beat produced at the anode of valve M is fed to a frequency-control grid 9 situated between the main anode 30 and the grid-anode 31 of the valve O, the electrodes 30, 31 being coupled by a condenser 29. If the beat frequency is too high, the oscillator O fails to come into step; and in order to avoid this the beat frequency is fed to a diode rectifier D, the cathode of which is connected by a series resistor 12 and shunt capacity 13 to the inner grid 6 of the mixer M. This grid assumes a slowly-rising positive voltage carrying it beyond its normal control range, with the result that the beat frequency disappears, and the grid voltage falls again. The anode potential of the tube M thus rises and falls substantially, with a frequency of a few cycles per second, and the oscillator frequency is swept slowly through the point of synchronism and is locked at that point, the beat frequency and the sweep frequency then disappearing. In Fig. 2, the diode rectifier is omitted, and the anode voltage of the oscillator O is fed back through a filter 16, 17, 18 to the grid 6 of the mixer valve M. The positive feed-back thus afforded causes an accentuated wobbling of the frequency of the oscillator O at a low rate dependent on the time constant of the RC filter 16, 18. In Fig. 3, the mixer BD is of the kind comprising a pair of diodes with one input 1 applied to the cathodes, and the other input applied to the anodes by a coupling loop 20, 21 from the oscillator O. The beat frequency is applied through a filter 22, 23 to the control grid 24 of a reactance valve R associated with the oscillator tuned circuit LC. In this modification, the slow oscillation is created by a tuned circuit 25 connected in the grid circuit of the valve R and back-coupled to an anode coil 27. As soon as the slow oscillation produces synchronism, the beat voltage and the slow oscillation cease. A neon indicator S may be connected across the circuit 25. The standard oscillation may be in the form of short impulses, and the variable oscillator may be synchronized with an harmonic of the impulse frequency.
Patent GB-176455-A (GB)
Title: Improvements in holt landing lights or flares for attaching to aircraft
IPC: B64D47/04
Filed: 1920-11-25
Abstract: 176,455. Holt, H. E. S. Nov. 25, 1920. Pyrotechnic apparatus and devices. -A landing light or flare for aircraft, which comprises a flare attached to an arm or bracket secured to the wing &c. and electrically ignited, is provided with a shade or shades to avoid the dazzling effect of upwardly directed light rays and interference with the observations of the ground below. The shade, which may act as a reflector, is formed in two parts a which are pivoted on pins b on the flare c and, when folded together, form a casing of stream-line shape open at the bottom, overlapping plates a', Fig. 4, intercepting upward rays of light. The shades a are held in the closed position against the action of springs d on the pins b by wire fastenings e engaging a metal strip e<1> or other attachment on the bottom c<1> of the flare body c. When the flare is ignited, the strip e<1> falls away and the movement of the shades is limited by flexible wires f, attached to the flare by tapes which are released when the flare burns, or by sinuous metal strips f<1>, Fig. 12, attached at intervals to the flare c. The pins b, carrying the shades a, are screwed to a plate g, Fig. 6, secured to the lower ends of a bifurcated arm or bracket h pivoted at its upper end to an attachment fit,- ting k for the wing &c. of the aeroplane &c. The flare c is detachably connected to the bracket h by bolts i which pass through an insulation plug j, the plate g and an insulating plate g<1>. The bolts i also form terminal screws for the ignition wires from the aeroplane. To permit of easy replacement or the correct positioning of the fuse, the detonator o resting on a short length of quickmatch p is fixed in an hermetically-sealed tube q which is inserted in a passage r in the flare and is carried by a wooden plug q<1> screwed into the plug and having a central aperture for the ignition wires s. In a modification, an insulating disc on the disc g' is pivoted on a central screw and is provided with key-hole slots for the pins i. The shades may also be operated by a Bowden wire mechanism. Specifications 158,580 and 162,694 are referred to.
Patent GB-1428284-A (GB)
Title: Photographic material
IPC: G03C1/76
Filed: 1973-07-12
Abstract: 1428284 Photographic silver halide element and processing EASTMAN KODAK CO 12 July 1973 [17 July 1972] 33316/73 Heading G2C and G2X A radiation-sensitive photographic silver halide element containing a developing agent and possibly also a stabilizer precursor, and useful in holography, has a support impermeable to water or ammonia or amines e.g. polyethylene terephthalate, and an outermost supercoat layer impermeable to water but permeable to ammonia or an amine. The exposed element is processed by contact with a gaseous amine or ammonia vapour or with a solution of ammonia or an amine to give a substantially dry and non-tacky processed element. Processing may take place without moving the element after exposure thus dispensing with the need in holography to re-register the processed element with respect to the reference beams. The polymeric overcoat layer may comprise cellulose acetate or butyrate, polyvinyl butyrol, copoly (methyl methacrylate/2-(N: N-dimethylamino/ethyl methacrylate) or the terpolymer with acrylic acid, a mixture of copoly (methyl methacrylate/butyl acrylate) and the partial ester of copoly (styrene-maleic acid) with or without a polysiloxane. Other polymer types are mentioned. Developing agents are listed including methyl gallate. Stabilizer precursors include hydroxyalkyl-isothiouronium salts, isothioureidoacetic and propionic acids, α-nitrilo-α- carboethoxy, or α-amido-#-(2-morpholinoethylthio)- #-phenylpropionitrile salts, S-thiouronium alkylene sulphonates and S-ethyl-carbamoyl derivatives of  2-mercapto isobutyric acid, 2-mercaptoethylamine  and its N-acetyl derivative and 3-mercapto propane sulphonic acid. A large selection of amines is specified for processing including imidazoles, alkylamines, alkylene di- and polyamines, hydroxy- and methoxyalkylamines and guanidine.
Patent GB-355127-A (GB)
Title: Improvements relating to rock drills, cutting picks and other hard metal tools
IPC: E21B10/58
Filed: 1930-11-05
Abstract: The shaft of a hard metal tool to be soldered to a cutting portion of tungsten carbide alloy is made of steel having a hardening temperature below the soldering temperature.  With a solder of copper the shaft may consist of a steel alloy containing 0,3 per cent of carbon, 3 per cent of chromium, 9 per cent of tungsten, and 0,3 per cent of vanadium.  With a solder of bronze it may consist of a steel containing 0,2 per cent of carbon, 2,3 per cent of nickel, 2,3 per cent of chromium, 9,5 per cent of tungsten, and 1,5 per cent of vanadium.  With a solder of brass it may consist of steel containing 0,2 per cent of carbon, 0,8 per cent of tungsten, 4,3 per cent of nickel, and 1,52 per cent of chromium.
Patent GB-834950-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02D41/30
Filed: 1957-10-25
Abstract: 834,950. Electromagnetic valves. BOSCH G.m.b.H., R Oct. 25, 1957 [Oct. 26, 1956], No. 33333/57. Class 7(6) [Also in Group XL(c)] The time of opening of an electromagnetically operated fuel injection valve P is determined by a switch a and the time of closing is determined by a timing circuit which comprises a transistor T in the circuit of the valve coil M controlled by a condenser C with a variable leak resistance R 2 . Closing of the switch a by an engine driven cam N connects the electricity source G to the coil M, to open the valve P immediately, and also to the condenser C, which begins to charge, and to relay coil W which after a predetermined interval opens a switch e to disconnect the source G from the coil C and transistor T. The valve P, however remains open while the condenser C, which discharges through the resistance R 2 , and at a voltage sufficient to maintain the transistor T conductive. The voltage to which the condenser C is charged is varied by adjustment of the resistance R 1  and the discharge rate of the condenser C is varied by adjustment of the resistance R 2 . The discharge rate of the condenser C may be varied automatically with engine speed by a resistance R 4  which is connected in parallel with R 2  for periods varying with engine speed by an engine driven cam Q. The period of injection can also be varied by using as the source G a generator whose voltage rises with engine speed and the relay D may be replaced by a monostable relaxation oscillator.
Patent GB-623377-A (GB)
Title: Improvements in or relating to anti-toxic agents
IPC: C07H15/04
Filed: 1945-12-10
Abstract: Sugar ethers of vicinal dithiol alcohols are prepared by reacting a tetra aceto bromo sugar derivative with an alkenyl alcohol in the presence of a catalyst such as silver carbonate, thereby producing a tetra acetyl alkenyl glycoside, subjecting said glycoside to bromination to produce a vicinal dibromo derivative and reacting the bromo derivative with alkali metal hydrosulphide or thioacetate with simultaneous or subsequent de-acetylation of the acetyl glycoside. Alternatively, a sugar may be reacted with an alkenyl alcohol in the presence of a catalyst such as hydrogen chloride to produce an alkenyl glycoside, which is brominated to produce a vicinal dibromo alkyl derivative and then reacted with alkali metal hydrosulphide or thioacetate.  Dithiol alkyl ethers of polyhydric alcohols such as mannitol, sorbitol, pentaerythritol and inositol may be prepared by similar means.  The detailed preparation of 2.3-dithiol propyl glucoside is given.ALSO:A preparation having a high therapeutic activity against the toxic action on living cells of metals such as arsenic comprises an aqueous solution of a polar mono-thiol or a polar vicinal or near vicinal dithiol, which compounds have at least four carbon atoms in the molecule, said solution being substantially isotonic with blood plasma.  Sugar ethers of vicinal or near vicinal dithiol alcohols, polyhydric alcohol ethers of such dithiols, and mono- or dithiol acids are examples of which 2, 3-dithiol propyl glucoside, dithiol alkyl ethers of mannitol, sorbitol, pentaerythritol and inositol, and a -thiol- and a , a 1 dithiol adipic acids are specified.  Other polar groups specified are the sulpho-, sulphonamido-and keto-amido groups.