baber/WOPTO huggingface dataset:
Patent GB-965291-A (GB)
Title: A process for preparing 3-(5-nitrofurfurylidene)-amino-2-oxazolidone
IPC: C07D413/12
Filed: 1961-12-01
Abstract: 3-(51-Nitrofurfurylidene)-amino-2-oxazolidone is prepared by reacting N-(5-nitrofurfurylidene)-N1-(carboxyethyl)-hydrazine with ethylene oxide.  N-(5-Nitrofurfurylidene-N1-(carboxyethyl)-hydrazine is prepared by reacting ethyl carbazinate with 5-nitrofurfural or a derivative thereof, e.g. the diacetate.
Patent GB-958747-A (GB)
Title: Improved process for the production of monosodium glutamate
IPC: B01J31/08
Filed: 1962-11-14
Abstract: Disodium glutamate is converted to monosodium glutamate by treating a solution of the former with an acrylic acid ion exchange resin. The monosodium glutamate may be recovered from its solution by evaporative crystallization and the ion exchange resin may be recovered and regenerated to the acid form for re-use. Specification 946,902 is referred to.
Patent GB-1058050-A (GB)
Title: Masking apparatus
Inventor: SHEPARD STANLEY CARDEN
IPC: H01L21/68
Filed: 1965-10-15
Abstract: <PICT:1058050/C6-C7/1> In the vapour deposition of a metal or dielectric material on a substrate which is moved on a frame through a series of vacuum chambers separated by seals, the frame is moved intermittently by a reciprocating slide, Fig.3 (not shown), and the substrate 47 is supported in a hole 50 in a plate 22 by lugs 51 on a plate 46. A mask 14 is carried by a support 48 and is moved vertically through the hole in the plate 22 to allow it to be clamped against the substrate, and inclined guides 37 position the substrate correctly.  The subtrate is heated before or during coating by a plate 15.  To form a capacitance-resistance network, Au or Cr is deposited on the base, then a Ni-Cr alloy, followed by Al, silicon monoxide and Al.
Patent GB-969213-A (GB)
Title: Primary amine catalyzed process for producing hydroxysilicon compounds
IPC: C08G77/00
Filed: 1960-12-20
Abstract: Hydroxyl-terminated diorganopolysiloxanes are prepared by reacting a completely condensed diorganopolysiloxane with water in the presence of at least one mole of an aliphatic primary amine per mole of water at a temperature of 75 to 150 DEG C. The hydroxyl-terminated siloxanes have the general formula: <FORM:0969213/C3/1> where a is at least 2 and R and R11 are substituted or unsubstituted monovalent hydrocarbon radicals of from 1 to 10 carbon atoms and may be alkyl, cycloalkyl, aryl (e.g. phenyl, tolyl, naphthyl), aralkyl, alkenyl and cycloalkenyl radicals which may be substituted by one or more amino, cyano, hydroxyl, alkoxy or aryloxy groups.  Some hydrolysis of cyano groups to carboxyl groups may take place. Examples are given. The products may be used as hydraulic fluids or they may be converted into silicone gums and then into silicone elastomers. Specification 969,212 is referred to.
Patent GB-1048676-A (GB)
Title: Improvements in or relating to resuscitation apparatus
IPC: A61M16/00
Filed: 1964-10-28
Abstract: 1,048,676. Breathing apparatus. P. L. S. CLEMENTZ. Oct. 28, 1964 [Nov. 4, 1963],No. 43942/64. Heading A5T. A resuscitation apparatus comprises an air pump 5 with air inlet valve 6, mask 1 for covering the nose and mouth, with air inlet and outlet valves 2 and 9 and hose 3, wherein the hose 3 is connected to pump 5 with a filter 4, acting as a connecting element, arranged to fit tightly into an aperture in the pumps, the aperture being large enough for the mask 1, valves 2, 9 and hose 3 to be inserted in the pump 5 when not in use, whereafter the filter 4 may be inverted and inserted in the aperture to act as a lid. The air intake in the filter 4 may be covered with a rubber cover when the filter is used as a lid.
Patent GB-950204-A (GB)
Title: Improvements in or relating to a process for scrubbing gases
IPC: C10K1/12
Filed: 1960-12-21
Abstract: In a process for removing CO2 and other acidic constituents from gaseous mixtures the gaseous mixture is scrubbed in a main and a supplementary scrubbing stage by a common alkaline scrubbing liquid, the common scrubbing solution after the main scrubbing stage being at least in part regenerated by electrodialysis to form a scrubbing solution containing a free base which is supplied to the supplementary scrubbing stage.  The scrubbing solution may be sodium or potassium hydroxide with or without activators, alkali salt solutions of weak inorganic or organic acids or solutions of ammonia, amines or aminoalcohols.  A main part of the scrubbing solution to be regenerated may be regenerated by a conventional thermal and/or stripping process. The supplementary scrubbing stage may be carried out in an upper part of the main scrubber.  The electrodialytic treatment may be carried out by passing a direct current through an electrodialytic cell divided into two or more compartments by one or more permselective membranes.ALSO:<PICT:0950204/C3/1> An electrodialytic cell used in regenerating alkaline solutions, e.g. potassium hydroxide, which have been used in purifying gases containing impurities such as carbon di-oxide (see Division C5) is divided by cationic permselective membranes into an anode and a cathode compartment and a central compartment to which the solution to be regenerated is fed.  The anode compartment contains a solution of an acid, e.g. sulphuric acid, and the cathode compartment contains water.  On passing a direct current through the cell a solution of e.g. potassium hydroxide is obtained in the cathode compartment and this is returned to the purifying process.  In a modified cell a simple cationic permselective membrane divides the cell into a cathode compartment and an anode compartment, the former containing the solution to be regenerated and a mercury cathode and the latter a solution of sulphuric acid. On passage of a current through the cell a potassium-mercury amalgam is formed in the cathode compartment and is withdrawn and reacted to produce potassium hydroxide and mercury. In cases where the solution to be regenerated contains additionally sulphate, thio-sulphate and/or thiocyanate ions the single cationic permselective membrane of the previous cell is replaced by an anionic permselective membrane.
Patent GB-1000159-A (GB)
Title: Heat-resistant chocolate article and process for its manufacture
IPC: A23G1/40
Filed: 1962-11-21
Abstract: 1,000,159. Heat-resistant chocolates. NESTLES PRODUCTS Ltd. Nov. 21, 1962 [Nov. 29, 1961], No. 44035/62. Heading A2B. Chocolate articles which do not soften readily, and so do not lose shape and adhere to wrappers in hot weather, are made by mixing a non-conched chocolate having at least the greater part of its sugar in amorphous form with about the same amount of a conched chocolate having its sugar in crystalline form, moulding the mixture, packing the moulded shapes in hermetic wrappers, and maintaining the wrapped shapes at a constant temperature between 20 and 35‹C. for 10-60 days. The amorphous sugar may be a mixture of sucrose and a reducing sugar such as invert sugar or dextrose in 70:30-90:10 ratio, and may contain fat to the extent of 5-10% of the sugars. The chocolate may contain milk, incorporated as whole or skim milk powder or as condensed milk, and may contain nuts.
Patent GB-877886-A (GB)
Title: Antibacklash differential mechanism
IPC: F16H57/12
Filed: 1959-12-29
Abstract: 877,886. Toothed gearing. COLLINS RADIO CO. Dec. 29, 1959 [April 22, 1959], No. 44131/59. Class 80 (1). In a differential mechanism comprising bevel gears 17, 17<SP>1</SP>, rotatably mounted on a shaft 12, and bevel planet pinions 22, 25, the pinion 22 is mounted on an L-shaped carrier 20 secured to the shaft 12, the pinion 25 is mounted on an L-shaped carrier 24 rotatably mounted on the shaft 12, and a spring 30 is arranged between the ends of the carriers 20, 24 in order to take up backlash in the gearing. Outputs from the bevel gears 17, 17<SP>1</SP> are transmitted to shafts 35, 35<SP>1</SP> through spur gears 18, 37, 181, 37<SP>1</SP>. Inputs may be provided to any two of the shafts 12, 35 and 351, the output being supplied at the third shaft. U.S.A. Specifications 2,607,238 and 2,900,846 are referred to.
Patent GB-1207640-A (GB)
Title: Improvements in vacuum furnaces
IPC: H05B7/109
Filed: 1969-09-08
Abstract: 1,207,640. Feeding vacuum furnaces. LEYBOLD - HERAEUS - VERWALTUNG G.m.b.H. 8 Sept., 1969 [10 Sept., 1968], No. 44357/69. Heading F4B. In a vacuum melting furnace 1 in which a feed column 13 extending through a vacuum seal over the furnace roof carries a progressively melting block, load cells 3 carry a platform 4 supporting a driving unit 10 on columns 5 and 6, and the seal 15 makes a gas-tight joint with a flange 17 on said roof by a bellows 16. Driving unit 10 actuates a screwed spindle 11 engaging a nut 12 on said column 13 carried by a crossmember 9 attached to sleeves 7 and 8 on said columns 5 and 6. Lateral displacement of platform 4 is prevented by guide pins 40 in sockets 41. A pressure equalizing pipe 19 in a C-shaped arm 23 on the furnace body 2 connects the furnace interior with a bellows 18 similar to bellows 16. Friction between seal 15 and column 13 is balanced by a reaction in the driving unit 10 and with the balance between bellows 16 and 18 ensures that the weight registered by load cells 3 comprises only that of the platform and its associated equipment and that of the charge block. In a modification (Fig. 2) the body 2 of the furnace is extended upwardly to form a closed frame (24) with upper ledges (25) from which the load cells support the driving unit. A similar modification (Fig. 3) has the upper part (2a) of the furnace removable by hydraulic motors (27).
Patent GB-1499285-A (GB)
Title: Curing of amino-plastic plastics materials
IPC: C08L61/00
Filed: 1976-10-26
Abstract: 1499285 Curing aminoplasts with phosphogypsum CENTRALNA LABORATORIA PO PHYSIKO - CHIMICHESKA MECHANIKA PRI BAN 26 Oct 1976 [31 Oct 1975] 44512/76 Heading C3R An aminoplast composition contains phosphogypsum as curing agent, e.g. in amount 40-90 wt. per cent of the resin/gypsum mixture if used wet, or 30-50 wt. per cent if used dry. In examples 3 p.b.w. of phosphogypsum containing 40% water are added to 1 p.b.w. of a UF resin, and 2 p.b.w. containing 20% water are added to 3 p.b.w. of UF resin.
Patent GB-905098-A (GB)
Title: Filter plate of the shell structure type for filtration with filtering aids
IPC: B01D29/00
Filed: 1960-12-28
Abstract: 905,098. Filters. HOELSCHER, W. B. Dec. 28, 1960 [Dec. 29, 1959], No. 44515/60. Class 46. [Also in Group XXVIII] Two ribbed shells 3, 4 are assembled to form a filter plate which is completely covered with a filter cloth 10 and is then used with filter aid in a container. The juxtaposing of the shells provides hollow ribs 5 which extend from the periphery towards, and communicate with, a central transverse drainage opening 6. Shallower transverse connecting ribs 8, 11, may also be provided. Drainage holes 9 are formed in the faces of the ribs 8, 11; they may also be provided in their sides, and in the faces and sides of the ribs 5. The outer boundary of the plate is in the from of a hollow roll 12, 13. The shells may be metal or plastic.
Patent GB-903919-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1960-12-29
Abstract: 903,919. Semi-conductor devices. WESTING- HOUSE ELECTRIC CORPORATION. Dec 29, 1960 [Feb. 29, 1960], No. 44599/60. Class 37. A multi-region semi-conductor device has a base region of one conductivity type and at least three regions of the opposite type spaced from each other and including first and second base electrodes fused to the base region, first and second emitter regions and a collector region and a low resistance non-rectifying bridge between the first emitter electrode and the second base electrode. As shown (Figs. 1 and 2), the device consists of a silicon wafer 5 with boron as a P-type impurity. The collector electrode 8 is made by alloying the wafer to a gold-antimony foil to produce an N, region 6. The first base electrode 9 which may be of P- type impurity containing gold or gold alloy, e.g. 0.3% by weight of boron. This first base electrode is surrounded successively by (1) a ring-shaped emitter region 10 made of the same material as the collector, (2) a ring-shaped base electrode 12, (3) a further emitter 14 and a third base. The first and second emitters 10, 14 and the second base are all joined together by brazing gold-plated silver bridges 18. The equivalent circuit of the device used as two transistors 35, 36 in cascade is shown in Fig. 6, the base connection to the second transistor being, if desired, only a single one by omitting base electrode 15. The device may be used as a unipolar or tetrode transistor by changing the bridging scheme. The various electrodes need not be circular and electrodes 12, 14 may be placed so close together that they short circuit. A section of emitter electrode 14 may be omitted and a low resistance path provided on the surface of wafer 5 between base electrodes 12 and 15.
Patent GB-1521726-A (GB)
Title: Beam collimation using multiple coupled elements
IPC: H01S5/12
Filed: 1975-10-29
Abstract: 1521726 Semiconductor lasers XEROX CORP 29 Oct 1975 [26 March 1975] 44610/75 Headings H1C and H1K In a heterostructure semiconductor laser in which distributed feedback is produced by a periodic corrugated boundary 14, Fig. 1, of a light waveguide layer 8, radiation generated in the layer is confined to a filamentary rectangular closed path 25, Fig. 3, extending orthogonally across the corrugations at two spaced regions 25a, 25b, an output beam 11, 11<SP>1</SP>, Fig. 2, being produced by the corrugations in a relatively vertical direction at each of the regions. The semiconductor body comprises a p-type GaAs layer 4, a p-type GaAlAs layer 6 having a corrugated surface 14 forming a light confining heteroboundary with a p-type light waveguide layer 8, and an n-type GaAs layer 10 forming a p-n junction 12. The body is formed as a rectangular parallopiped by cleaving the side surfaces 18-24, and has the corrugations inclined at 45 degrees with respect to these surfaces. A pair of strip electrodes 9 or a transparent electrode is provided on the light emitting surface and a single electrode is formed on layer 4, pumping current between these electrodes being confined to a filamentary rectangular current path 30-34 in an otherwise high resistance layer 4. Due to the restricted region of current flow, emission of radiation is confined to a corresponding filamentary rectangular closed path 25 in light waveguide layer 8, the radiation in this plane being contained within the semiconductor body by total internal reflection at the cleaved side surfaces. The semiconductor structure is formed on an n-type GaAs substrate 10 doped, e.g. with silicon, the corrugated boundary 14 being formed in one major surface by interferometric exposure of a photoresist material, using a divided laser beam, followed by ion milling, diffusion etching or surface milling. P-type layers 6 and 4 are then applied by liquid phase epitaxial growth. The p-n junction 12 is obtained by a diffusion process in which zinc arsenide is used to drive the p-type material into substrate 10 to form layer 8, the substrate being then polished to remove any diffused zinc. Formation of the filamentary rectangular current path in layer 4 is effected by covering the layer with a rectangular wire mask and implanting protons in the unshielded areas to create high resistance regions.
Patent GB-1179159-A (GB)
Title: Improvements in or relating to Indexing Tables.
IPC: F16H27/04
Filed: 1967-10-02
Abstract: 1,179,159. Conveying rotary motion. GIDDINGS & LEWIS Inc. 2 Oct., 1967 [13 April, 1967], No. 44689/67. Heading F2Q. In an indexing mechanism, stepped rotation of a ring gear 10 is effected by reciprocation of a pinion 44, meshing ring gear 10, along an arcuate path, a rack 84 being moved into engagement with pinion 44 during the forward strokes, and being moved out of engagement therewith during the return strokes when the ring gear 10 is braked by a gear segment 62. The pinion 44 is mounted at one end of a link 40, the other end of which engages an eccentric pin 38 on a plate 36 secured to a driving shaft 32. Engagement and disengagement of rack 84 and gear segment 62 is effected by a cam 56 driven from shaft 32. Rack 84 is pivotally mounted on a bell-crank lever 80 and link 88. Another bell-crank lever 74 is pivotally mounted at the end of the short arm of lever 80 and carries a roller 76 which is urged into engagement with cam 56 by a spring 66. The bell-crank lever 80 is mounted on a fixed pivot 60 on which a link 58 is also mounted. The link 58 carries at one end gear segment 62 and at the other end a pad 64 which is engaged on one side by the spring 66 and engages on the other side a spindle 72 carrying roller 76. Bell-crank lever 74 comprises a roller 96 which is normally spring-pressed into engagement with a notch 94 in a link supporting rack 84 but is adapted to yield in the event of jamming. A spring- pressed roller 102 functions to balance some forces. A cam 108 may be turned to engage pad 64 and move gear segment 62 out of engagement with gear ring 10 to permit free rotation thereof.
Patent GB-1374017-A (GB)
Title: Release paper for use in forming plastics laminates
IPC: C09J7/02
Filed: 1972-09-28
Abstract: 1374017 Laminates SCOTT PAPER CO 28 Sept 1972 [8 Oct 1971] 44900/72 Heading B5N Sheets of acrylic or polyester resins are laminated by a method which includes the step of pressing a sheet of the resin against a piece of paper having an easy release surface, wherein the release coating comprises polyvinylalcohol and up to 20% of methyl cellulose based on the weight of the polyvinylalcohol. In the examples (1) paper is coated with an aqueous composition containing polyvinylalcohol and methylcellulose. This is pressed against a polyester resin prepeg which is supported on chipboard in a press. The assembly is removed and the paper peeled off; (2) paper is similarly coated and pressed against two superimposed sheets of polyester saturated kraft paper in a press and the release paper stripped off; and (3) a similarly coated paper is pressed against a layer of acrylic resin supported on an asbestos board impregnated with a vinyl resin, in a press and the release paper again removed from the assembly.
Patent GB-1491673-A (GB)
Title: Glazing
IPC: E06B3/54
Filed: 1974-11-25
Abstract: 1491673 Laminates BENTSFIELD AIR CONDITIONING Ltd 25 Nov 1974 [26 Sept 1973] 45120/73 Heading B5N [Also in Division E1] A glazing member 2 is covered on one side by a plastics film having closed pockets 5. The film is of polyethylene and is secured to pane 2 by adhesive, or may be secured to a frame which is then attached to the glazing. A further pane (11) is preferably provided. The pockets have interior coatings 3 of air impervious material.
Patent GB-1119474-A (GB)
Title: Flux-gate head reading
IPC: G11B5/335
Filed: 1966-10-10
Abstract: 1,119,474. Flux-responsive magnetic reproducing heads; local circuits. TELEDYNE INDUSTRIES Inc. 10 Oct., 1966 [8 Oct., 1965], No. 45176/66. Heading G5R. The density of a flux (e.g. from a tape T) is measured by saturating and unsaturating at least a portion of a magnetic head H at a periodic rate (as shown, by means of windings X fed by a square wave generator A) while deriving an intelligence signal (from windings S as shown) proportional to the flux but chopped at this periodic rate, generating a reference signal varying at the same periodic rate, synchronizing the phase of the reference signal with the chopping of the intelligence signal adding the two signals to form a resultant signal, and amplitude demodulating the resultant signal.
Patent GB-1117648-A (GB)
Title: Improvements in or relating to silos
IPC: B65D88/32
Filed: 1965-10-26
Abstract: 1,117,648. Silo. SOC. ANON DES ATELIERS ET CHANTIERS DE LA SEINE-MARITIME. 26 Oct., 1965 [27 Oct., 1964], No. 45242/65. Heading B8S. In order to avoid bridging, the silo 14 is divided by partitions 16 which are formed curved as shown, there being six partitions in the said silo. Each partition is formed of a series of stepped sheets 19 which are mounted on helices 17 and 18 secured respectively to the internal post 15 and the internal wall of silo 14. Air may be blown through the spaces of the steps to aerate the material in the silo.
Patent GB-1185480-A (GB)
Title: Improvements in and relating to Transfer-Sheet Systems.
Inventor: FIRTH DONALD
IPC: B41M5/10
Filed: 1966-10-26
Abstract: 1,185,480. Polymer compositions. DATACOPY Ltd. 19 Oct., 1967 [26 Oct., 1966; 5 Oct., 1967], Nos. 48082/66 and 45520/67. Heading C3P. [Also in Division D2] A transfer composition for a transfer-sheet system (see Division D2) comprises a spiritsoluble resin and a spirit-insoluble pigment, and the receptor composition comprises a thermoplastic polyalkylene and alkyl-cellulose or alkyl-hydroxyalkylcellulose. The transfer compositions of the examples comprise: a rosin-maleic adduct esterified with pentaerythritol, ethyl - hydroxyethyl - cellulose, mixed dimethylcyclohexyl adipates, titanium dioxide, finely divided silica, a long-chain amide, polyvinyl-pyrrolidone and 2,6-ditertiarybutylparacresol. That of Example (1) also includes white spirit, carbon black, a dark grey pigment and a deodorant, that of Example (2) isopropyl alcohol, and blue pigments, that of Example (3) isopropanol, carbon black and a dark grey pigment. The receptor composition of Example (5) comprises white spirit, polyethylene, ethyl-hydroxyethyl-cellulose, long chain amides and titanium dioxide, that of Example (4) the same ingredients plus china clay.
Patent GB-1219396-A (GB)
Title: A process for the crystallisation of p-xylene
Inventor: YOUNG ELDRED EMSLEY
IPC: B01D9/00
Filed: 1969-09-16
Abstract: 1,219,396. Crystallizing p-xylene. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Sept., 1969 [18 Sept., 1968], No. 45534/69. Heading B1G. [Also in Division C5] Hydrocarbon feed from a tank 10 is mixed with liquid CO 2  from a compressor and storage unit 20, cooled in exchanger 30 by direct heat exchange with mother liquor from a separator 50, mixed with a portidn of the slurry from a crystallizer 40, partially crystallized in crystallizer 40 by evaporation of liquid CO 2 , and converted to a p-xylene crystal cake in separator 50.
Patent GB-1401922-A (GB)
Title: Cutter assembly
IPC: A01D34/13
Filed: 1973-09-28
Abstract: 1401922 Cutter assembly SANDVIK AB 28 Sept 1973 [29 Sept 1972] 45597/73 Heading A1F A cutter assembly comprises a holder bar 2, to which are attached blades 6, 7 arranged alternately along both sides of the holder bar, plus a flexible cutter bar 1 having teeth 3 and which is slidably mounted at the end of the holder bar so that neighbouring blades lie on opposite sides. The distance between neighbouring blades measured normal to the surface of the holder bar is less than the thickness of the cutter bar, so that the latter is flexed by the blades, which then cooperate with the teeth 3 to produce a scissors action as the cutter bar reciprocates. The teeth 3 extend beyond the blades 6, 7 and increase in width towards their forward ends which may be rounded or straight.