baber/WOPTO huggingface dataset:
Patent GB-233915-A (GB)
Title: Combination cigarette carton and match box
IPC: B65D85/10
Filed: 1924-06-24
Abstract: 233,915. Nash, F. J. June 24, 1924. Drawer-and-shell boxes.-A receptacle for both cigarettes and matches consists of a carton of paper, cardboard, wood, metal &c. made from a strip 1 bent as shown in Fig. 2 to form two shells 2, 3 to take two drawers 4, 5, Fig. 1, of which the latter is made from a strip cut as shown in Fig. 3.
Patent GB-1432013-A (GB)
Title: Phosphorus containing fire retardant additives
IPC: C08L51/02
Filed: 1973-03-29
Abstract: 1432013 Phosphonomethyl amides HOOKER CHEMICALS & PLASTICS CORP 29 March 1973 [30 March 1972 (2)] 15185/73 Heading C2P [Also in Divisions C3 and D1] The invention comprises compounds of formula wherein R<SP>1</SP> is C 1-6  alkyl, C 1-6  haloalkyl, C 2-6  alkenyl, phenyl or halophenyl; and either (i) y is 1 to 4 and Z is where n is 0 to 5 such that n+y=2 to 6, and each X is Cl, Br, C 1-6  alkyl, carbamoyl or (hydroxymethyl)carbamoyl; or (ii) y is 1 and Z is H, C 2-8  alkyl optionally substituted by a carbamoyl or (hydroxymethyl)carbamoyl group, benzyl, halobenzyl, dialkylphosphonoalkyl, phenoxymethyl or carbamoyl; or (iii) y is 2 and Z is a direct bond or C 1-4  alkylene. Compounds I are prepared by reaction of P(OR<SP>1</SP>) 3  with (HOCH 2 NHCO) y -Z. Compounds I are used as flame-retardants for polymers and textiles (see Divisions C3 and D1).
Patent GB-1302097-A (GB)
IPC: A01C3/00
Filed: 1970-03-31
Abstract: 1302097 Rotary pumps H VOGELSANG 31 March 1970 [21 Jan 1970] 15271/70 Heading F1F In a pump of the Root's blower type for e.g. pumping liquid mud or sewage, the two intermeshing rotors are of figure-eight shape and have an outer surfacing 30 of elastomeric material supported on a rigid hub comprising a hollow sleeve 31 connected to a pair of diametrically opposed cylindrical members 32, 33 whose height is less than the thickness of the rotor, the pump having an unrestricted inlet opening 27, Fig.2 (not shown) to ensure agitation of the pumped liquid. The surfacing 30 may be keyed to the members 32, 33 by means of pins 38, and may have projecting portions 39 in the regions of mutual contact to facilitate sealing. The rotors are mounted on vertical axes in a pump chamber immediately below and sealed from a gear section which may be filled with lubricant. The pump is connected to a motor by a telescopic driving- shaft.
Patent GB-709466-A (GB)
Title: Improvements in or relating to the manufacture of silica hydrosols
IPC: C01B33/143
Filed: 1952-06-18
Abstract: Silica hydrosol, substantially free from alkali metals, is prepared by reacting an aqueous alkali metal silicate solution with an acid to produce a silica hydrosol containing excess acid together with the alkali metal salt of the acid, contacting the mixture with a cation exchange material to remove alkali metal ions and regenerate the acid, and separating the acid from the hydrosol.  Suitable acids are sulphurous, acetic, propionic, chloracetic, formic, tartaric, and nitric acids.  Sulphurous and other volatile acids may be separated from the final hydrosol by distillation, if desired under reduced pressure or by blowing in air or natural gas and recovering sulphur dioxide from the resultant gas by scrubbing with water or adsorption on charcoal. The acid may also be removed by treatment with a solvent, e.g. <PICT:0709466/III/1> chloroform or hydrocarbon oil. The mixture of acid and alkali metal silicate preferably has a pH of 2 to 5.  Before mixing with the acid, the silicate solution may be partially converted to an alkaline silica hydrosol by dialysis or treatment with a cation exchange material.  As shown silicate solution introduced at 10 mixes in pump 16 with a solution containing silica hydrosol and sulphurous acid from scrubbing tower 12.  Part of the mixture is recirculated to the tower 12 via line 48 and the remainder passes through line 22 to a vessel 24 or 62 containing cation exchange resin, and thence via heater 28 to stripper 34 where sulphurous acid is removed by gas introduced at 36; pure silica hydrosol is obtained at 42 and the sulphur dioxide evolved passes to the bottom of scrubbing tower 12 where it contacts recirculated original mixture and water entering at 54.  The process may be carried under superatmospheric pressure.  The cation exchange resin is periodically washed with water and regenerated with sulphuric or hydrochloric acid.  Hydrosols containing up to 15 per cent. silica may be obtained without deposition of silica on the exchange material.  The product may be allowed to gel or may be mixed with alumina hydrosol to produce silica-alumina cracking catalyst. Specification 645,703 is referred to.
Patent GB-1130001-A (GB)
Title: Hooks
IPC: A47F5/08
Filed: 1967-04-04
Abstract: 1,130,001. Hooks. M. M. GUILLOT. 4 April, 1967 [14 April, 1966], No. 15399/67. Heading E2A. A hook to be supported by a perforated board has a hook finger 2 bent from a support having two parallel flat portions 3, 4 with their ends 6, 7 bent over in opposite directions. In use, the lower limb is passed through one perforation and the bent-over ends 6, 7 are sprung over the edges of the adjacent perforations. The upper bent-over end may be permanently deformed to prevent removal of the hook. For use with boards having circular perforations, the ends may be bent along arcuate lines, Fig. 6 (not shown).
Patent GB-779197-A (GB)
Title: Improvements in apparatus for processing a textile sliver or other continuous body of textile material
Inventor: KING BRIAN EDMUND
IPC: D01H5/42
Filed: 1954-05-26
Abstract: 779,197. Electric control systems. T.M.M. (RESEARCH), Ltd. May 25, 1955 [May 26, 1954], No. 15564/54. Class 40 (1). [Also in Groups IX and XXXVI] Apparatus processing a textile sliver or other continuous run of textile material comprises a device deriving mechanical or electrical signals due to measured variations of a physical characteristic thereof which operates means generating electric signals proportional in amplitude to the instantaneous values of the characteristic, which are then converted into a train of electric pulses of widths proportional to such instantaneous values, which are stored in a continuous record and after a predetermined time delay are reproduced as further signals actuating mechanism whereby the textile material is treated for the removal or reduction of the variable characteristic. A textile sliver 11 (Fig. 1) passes to drafting rollers A, B through transducer 10, which generates a signal of amplitude varying proportionally to the instantaneous thickness for conversion by device 12 to a pulse train of frequency inversely proportional to the instantaneous signal amplitude, which is shaped by device 13 to a train of square pulses of widths instantaneously proportional to the thickness, which are magnetically recorded by head 14 on a tape 15 driven at constant speed by the back pair A of the drafting rollers. A magnetic pickup 16, movable with regard to the recording head 14 to control the insertion of a time delay, reproduces the pulse train recorded as an electrical signal, which after amplification and squaring by device 17 is differentiated to trigger a sawtooth generator 18, whose output is proportional in amplitude to the input pulse width and is smoothed at unit 19 to a control signal for the variable speed driving mechanism 20 of the front pair B of the drafting rollers, whereby the draft speed is controlled, after a time delay by the occurrence of a thickness variation, in such a sense as to reduce such variation. The recording head may have the form of a roller (Fig. 2, not shown) against which the tape is pressed by a spring arm, and after reproduction the recording is erased by a permanent magnet. The signals may alternatively be recorded magnetically on a disc rotating in synchronism with the draft rollers.
Patent GB-394131-A (GB)
Title: Improvements in or relating to eye sunshields or the like
IPC: G02C7/10
Filed: 1932-06-02
Abstract: 394,131. Eyeshields. PENNEY, P. J., 14, Priory Avenue, Hastings. June 2, 1932, No. 15585. [Class 97 (i).] An eyeshield made of semi-transparent material comprises a part B fitting the forehead and a downwardly-extending part A of such depth as to extend over the upper parts of the eyes, leaving the pupils clear. Side shields C are attached to the part A. The parts B, C are hinged at a to the part A so that the shield can be collapsed into a flat form as shown. The part A may have a member A<1> to rest on the nose.
Patent GB-1401953-A (GB)
Title: Thermally-responsive switch-actuating members
IPC: H01H37/54
Filed: 1971-05-18
Abstract: 1401953 Temperature responsive actuating elements OTTER CONTROLS Ltd AND J C TAYLOR 5 June 1972 [18 May 1971] 15618/71 Heading G1D [Also in Divisions F2 and H1] A snap-acting binital sheet actuating member is similar to that described in Specification 1064643 except that the abutment 7 is provided on the free end of the tongue 3, the abutment 7 overlying the bridge 5 and/or the outer legs 4 of the sheet 1. Abutment 7 is welded to tongue 3 at 8.
Patent GB-612378-A (GB)
Title: Improvements in or relating to metal shearing, riveting, punching or like machines
IPC: B23D15/10
Filed: 1946-05-23
Abstract: 612,378. Metal-working presses; cutting shaped holes in plates. CARTLIDGE, A. E. May 23, 1946, No. 15621. [Class 83 (iv)] A shearing, bending, riveting, &c. machine comprises a lower fixed arm 1 supporting at one end a power or hand-operated eccentric shaft 17 with the ball end 20 of an extension of its sheave 19 spring-retained in a partspherical block 21 guided in a groove 22 of an upper arm 4. The arms 1, 4, are intermediately pivoted, and their other ends carry upper adjustable and lower fixed transverse shearing cutters 9, 8. For stroke variation the block 21 is screw adjusted and a manually operated lever 29 pivoted to the lower arm 1 shifts the sheave 19 against a spring 17 to hold the tools 8, 9 wider apart for inserting work without stopping the machine. Specification 566,216 is referred to.
Patent GB-770257-A (GB)
Title: Improvements in or relating to adjusters for relatively adjusting two lengths of wire, strip, or the like
Inventor: ROBERTON JAMES SAMUEL PATERSON
IPC: H04M1/05
Filed: 1955-06-01
Abstract: 770,257. Friction grip fastenings. STANDARD TELEPHONES & CABLES, Ltd. June 1, 1955, No. 15700/55.. Class 44. [Also in Group XXXIX] An adjuster for relatively adjusting longitudinally two seriallyarranged lengths 1, 10 of stiff wire, strip or the like comprises a shallow box having an internal depth substantially equal to the diameter or width of the wires, strips or the like, laterally spaced passages 9, 13 in said box for the ends of said lengths of wire, strip or the like, one at least of which is such that the corresponding lengths of wire, strip or the like can be longitudinally moved in the corresponding passage and means 14 in said box for frictionally holding the adjustable wires, strips or the like in an adjusted position while allowing limited movement out of or into said box when pulled or pushed. As shown, the adjuster is incorporated in the headband of a telephone head-set. In Fig. 7 the box consists of a central wall portion 19 at the top and bottom of which ledges 20 are formed for seating plates 3, 4. The passages 9, 13 are holes in opposite portions of the wall 19 and the means for holding the wires in an adjusted position is a resilient bush 14 which surrounds a piece 18 which spaces the two plates 3, 4 apart. A screw 5 or rivet passes through the plates 3, 4 and the spacing piece 18 to hold the plates and wall 19 together. The bush 14 is compressed between the ends of the wires 1, 10 and so frictionally holds them in any desired position. The ends of the wires are bent over as indicated at 8 and 17 to prevent them coming out of the box. In a modification the box can be formed of two plates each formed with a flange, one flange fitting inside the other. In a further modification the box can be made of two members which butt together ; these members can either be grooved to form the passages 9, 13 or be hollowed out with aligned apertures in the walls forming the passages. In a further modification, Fig. 10, the lengths 1, 10 are made of rectangular section strip and each is formed with rack teeth 21 engaging a pinion 22 which is substituted for the bush 14. The size of the pinion is such that it presses the ends of the lengths 1, 10 against the walls of the box to ensure sufficient lateral pressure to retain the lengths 1, 10 in their adjusted position. With this construction both of the lengths 1, 10 move together when an adjustment is made.
Patent GB-568453-A (GB)
Title: An improved method of welding metal bodies
IPC: B23K35/34
Filed: 1943-09-24
Abstract: 568,453. Thermo-aluminic processes. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. Sept. 24, 1943, No. 15719. Convention date, Sept. 30, 1942. [Class 83 (iv)] [Also in Group II] In welding bodies of light metals such as magnesium or aluminium or their alloys, or bodies of brass or a body of copper to a body of aluminium, the assembled parts are surrounded by an exothermic mass which is then caused to react without allowing the molten products to flow out of the mass, the heat supplied by the reaction welding the parts together. Rods, profile sections, tubes, cables or T-pieces for electric conductors of aluminium may thus be joined. The ends of the parts 1, 2 may be separated by an aluminium centring ring 6 which may form part of the joint which is effected by fusion or by upsetting. The parts are enclosed in a briquette 3 of the reaction mixture which may contain excess of iron oxides or consist of 23 per cent magnesium, 23 per cent of magnesium oxide and 54 per cent of small scale so as to prevent the molten iron formed by the reaction from running out of the mixture, or the mixture for this purpose may consist of a thermo-magnesium mixture with excess of iron oxide, or a mixture such as 20-30 per cent Mg, 2-7 per cent Al and 67-78 per cent small scale or 24-26 per cent Mg, 3-5 per cent A1 and 69-73 per cent small scale. Between the briquette and the parts 1, 2 may be placed a tube 4, which may be of aluminium so as to form part of the joint or may be of ceramic material or of a metal of higher melting point such as iron, with a folded joint so that it can be removed after welding. The briquette is surrounded by a cardboard tube 10 and is provided with end covers 11, any interstices into which moisture could penetrate being sealed by paraffin. The briquette may be ignited by a mixture 8 of potassium chlorate, aluminium powder, magnesium powder and sulphur provided with a tear-off strip 9. When welding tubes or hollow cables, the hollow may be provided with a tube of infusible material or of a metal of higher melting point. An intermediate piece, such as 6, may be placed near the joint instead of in the joint, so that it is melted during welding and runs into the joint. In cases where the parts cannot be pressed together, as in welding bus-bars, one or more intermediate pieces are placed between the parts after they soften or begin to melt, so that they serve, to effect the upsetting. In normal cases, the parts are secured between sets of clamps which are under spring pressure for effecting the upsetting. The upsetting device is light enough to be suspended on overhead aluminium cables during the welding thereof.
Patent GB-1004950-A (GB)
Title: Semiconductor devices and methods of making them
IPC: H01L29/00
Filed: 1963-04-22
Abstract: 1,004,950. Semi-conductor devices. RADIO CORPORATION OF AMERICA. April 22, 1963 [May 14, 1962], No. 15788/63. Heading H1K. A method of providing a junction in a crystalline semi-conductor wafer comprises epitoxially depositing semi-conductor material on a substrate from the liquid phase by flooding the substrate with a molten solvent in which is dissolved semi-conductor material and donor and acceptor impurities which have differential solubilities in the semi-conductor material, cooling to form a first recrystallized layer containing an excess of one impurity and a second recrystallized layer containing an excess of the other impurity, and decanting the remainder of the solvent. As shown, Fig. 1, a germanium wafer 10 is mounted in a furnace boat 11 together with a charge 12 comprising granulated germanium, a small amount of arsenic, a greater amount of indium and a solvent comprising lead and tin. Boat 11 is placed in a furnace tube 13 through which a reducing or inert gas is passed and is heated to about 600‹ C. to melt the leadtin solvent but not the germanium wafer. The germanium in charge 12 dissolves in the solvent and the charge is allowed to cool to about 560‹ C. and the tube 13 is leveled to flood charge 12 over wafer 10. The furnace is allowed to cool causing an epitaxial layer of germanium to be deposited on face 14 of wafer 10. The excess molten charge is then decanted. The layer contains both impurities but that part deposited first contains an excess of indium and is P-type. As the furnace cools the solubility of indium in germanium decreases more rapidly than that of arsenic and the second part of the layer thus contains an excess of arsenic and is N-type. As shown. Fig. 3f, a transistor is fabricated using a P+-type wafer 10, on which are deposited epitaxial layers 31<SP>1</SP>, 33<SP>1</SP> of P-type and N-type germanium by the above method, by alloying lead, antimony pellet 34 and indium pellet 35 to layer 33<SP>1</SP> to form base and emitter electrodes and then masking and etching the wafer to form a mesa 37. In. a second example an epitaxial layer of germanium is deposited on a gallium arsenide wafer. The method may be used with other semi-conductive materials such as silicon, germanium-silicon alloys, silicon carbide, the phosphides, arsenides and antimonides of aluminium, gallium and indium and the sulphides, selenides and tellurides of zinc and cadmium.
Patent GB-496956-A (GB)
Title: Improvements in or relating to the refining of hydrocarbon oils
IPC: C10G19/02
Filed: 1937-06-08
Abstract: Hydrocarbon oils are treated with a selective solvent in the presence of an aqueous alkaline solution, whereby three layers are formed, which are then separated.  Selective solvents which are non-reactive to alkali are used, e.g. pyridine or its homologues, alone or mixed with nitrobenzene, aniline, or chloraniline.  The presence of alkali accelerates the separation into layers and the raffinate phase is obtained free from extract.  Lubricating oil is led to the second stage of a series of four mixing and settling vessels, and flows in countercurrent with pyridine containing some water admitted to the last stage.  A 35 per cent solution of caustic soda or ammonium hydroxide is admitted at each mixing stage where it is agitated with the extract and preferably added water, and then separated in a settler.  When solvent mixtures containing nitrobenzene are used, the final raffinate may be dark coloured, and is improved by a final extraction with pyridine alone.
Patent GB-1255271-A (GB)
Title: Radiation-detector cryostats
IPC: G01T1/24
Filed: 1969-03-26
Abstract: 1,255,271. Refrigerating. SIEMENS A.G. 26 March, 1969 [26 March, 1968], No. 15933/69. Heading F4H. A cryostat for cooling a radiation detector comprises a Dewar vessel 30 containing a liquefied gas, a vacuum chamber unit 20 releasably connected to the mouth of vessel 30, a heat transfer member 28 which supports the detector D and partially bounds the vacuum chamber, connection 25, 26 for evacuating unit 20, electrical connections 24 on unit 20 and a cold-conveying device for cooling the member 28. As shown in Fig. 1, the device is a copper rod 1 screwed to a projection 29 on the underside of member 28 and depending into the liquefied gas; it may alternatively comprise a tube 40 (Fig. 5) having outlet ports 44 in its upper end positioned within a sintered body 45. In the embodiment of Fig. 1 coolant vapour passes through the inner tube of the neck of vessel 30 while in Fig. 5 the inner tube is sealed by a plate 41 which is urged by a spring 42 against a seat 43. In both cases the vapour exits through an aperture 4 in a correcting flange 32. The aperture may be controlled by a valve 48. Unit 20 is in two parts, the upper of which has a radiation permeable wall 21; it may also include an angled section (Figs. 7, 8 and 12, not shown) and may be arranged beneath vessel 30 (Figs. 9-12, not shown). In the latter case the coolant may be supplied to the vacuum chamber unit by gravity under the control of a valve which is arranged in the base of the vessel and has an activating rod accessible from above the vessel.
Patent GB-114437-A (GB)
Title: Improvements in or relating to Electric Cooking Stoves.
Inventor: FLETCHER FRANK PURSER
IPC: F24C15/10
Filed: 1917-05-07
Abstract: 114,437. Fletcher, F. P. May 7, 1917. Electric stoves. - A hot plate 1 is suspended from the underside of the hob 3. The plate has a number of lugs 4 through which pass bolts 5 fixed to the hob and carrying springs 6 upon which the plate rests. The plate normally projects above the surface of the hob, and several plates may be provided to project through a single opening in the hob. The supply leads may be carried through passages in the lugs 4. The mounting of the plate enables it to be tilted in various directions.
Patent GB-1471062-A (GB)
Title: Process for enzymatically isomerising glucose to fructose
IPC: C12N9/92
Filed: 1974-04-10
Abstract: 1471062 Isomerizing glucose to fructose ROQUETTE FRERES 10 April 1974 [10 April 1973] 15980/74 Heading C2S [Also in Division C3] A method of isomerizing glucose to fructose comprises using an enzyme produced by a strain of the species Streptomyces violaceoniger, e.g. CBS 409-73 having the following taxonomic characteristics: appearance of spores: globular, measuring 0À9 to 1À2 Á and having smooth or slightly rough walls; appearance of mycelium: sporulating, greyish brown, liquefying into moist damp spots and having monopodial sporophores; appearance of spirals: short, in lumps, having more than 1 tendril; appearance of mycelium: whitish to yellow (chamois); A pale pink soluble pigment can be extracted therefrom and is produced in skimmed milk; cultivation in "iron-peptone agar": no melanoid pigments (these do not appear either in a culture on tyrosine-agar). Diastasic action: agarpositive; starch-positive. Proteolytic action: coagulation of milk, good, peptonization, liquefaction of gelatine. Sugars assimilated by the strain: saccharose, inositol, rhamnose.