baber/WOPTO huggingface dataset:
Patent GB-1090103-A (GB)
Title: Process for the recovery of sulphur dioxide and ammonia from ammonium salts
IPC: C01B17/58
Filed: 1965-01-05
Abstract: Ammonia and sulphur dioxide are produced from ammonium salts of sulphuric acid (1) by heating a mixture containing mainly ammonium sulphate but also ammonium bisulphate, at 200-450 DEG  C., to produce ammonia and ammonium bisulphate and (2) reducing a mixture containing mainly ammonium bisulphate, but also ammonium sulphate, at 400-550 DEG  C., with hydrogen, hydrogen sulphide or sulphur as reducing agent, in the melt or vapour phase, finally to form sulphur dioxide and ammonium sulphate.  Steps (1) and (2) follow each other in a sequence, the residue from either step being combined with material of the same nature, e.g. bisulphate residue combined with a mixture containing mainly bisulphate, the process being conducted so that the quantity of residue remains constant throughout.  The expulsion of ammonia in step (1) may be accelerated by the introduction of an inert gas or steam or by vacuum.  In step (2), only a part of the bisulphate may be reduced as above, the remainder being added to ammonium bisulphite solution produced in step (2) which is extracted with ammonium sulphate or water and sulphur dioxide is liberated by heating.
Patent GB-994196-A (GB)
Title: Process for the production of improved cellulosic fabrics of the type having high crimp in the warp, or in the weft, or in both the warp and the weft
IPC: D06M11/38
Filed: 1962-01-05
Abstract: Stretchable or elastic properties are obtained in a cellulosic fabric of the type having high crimp by desizing the fabric and padding in a regulated concentration of a metallic hydroxide solution to control the degree of swelling of the fibres and allowing the fabric to shrink a regulated amount in the direction of the high crimp. Preferably the metallic hydroxide is caustic soda.  The fabric may be steamed in the relaxed state during desizing and the degree of shrinkage may be contolled by applying tension to the warp or weft or to both warp and weft.  In a preferred method, the fabric is desized in a steamer then dried and padded through a solution of 8% caustic soda at 50 DEG C., shrunk under control on a scray, washed without tension in brine at 70 DEG C. and dried in the relaxed state.  A crease resistant finish may be subsequently imparted to the cloth provided tensioning is avoided.  Alternatively the crease resistant finish may be applied to the fabric tension before it is subjected to the process of the invention.
Patent GB-684593-A (GB)
Title: Improvements in or relating to x-ray photographic processes and film units for use therein
IPC: G03C5/16
Filed: 1948-01-07
Abstract: 684,593. Self-developing Rontgen-ray film units. INTERNATIONAL POLAROID CORPORATION. Jan. 7, 1948 [Feb. 8, 1947], No. 497/48. Classes 98 (i) and 98 (ii). The unit comprises a layer of silver-halide material sensitive to X-rays or rays emanating from radio-active material. another layer of sheet material which may include a substance capable of precipitating silver from a silver complex, a container positioned, on stress of same, for discharge of its liquid content between the layers, and a developer and silverhalide solvent either in the container or placed so as to be dissolved by the liquid on discharge ; at least the outer surfaces of the unit being opaque to actinic rays and at least a part of them being transparent to X-rays or similar rays. As shown in Fig. 1, a base layer 10 as of black paper or black dyed cellulosic film base carries a silver halide emulsion layer 12 of X-ray type and the container 16 is positioned between this and the " other layer " ; or imagecarrying layer 14 of baryta paper having a light-opaque backing. On application of pressure to the unit as by rollers 20, Fig. 2, after exposure, the container 16 is raptured and its contained liquid is spread between the layers to effect development, and preferably, to produce a positive image in the layer 14, and this may be produced a few seconds after exposure. If a negative is desired as with use of the double layer photo-sensitive emulsions ordinarily used in X-ray photography, two photo-sensitive layers 24, Fig. 3, may lie on opposite sides of a base layer 22 each with its container 28 and an outer actinic-light opaque envelope 28 is provided. The container and the unit generally may be made in the manner described in Specification 684,592.
Patent GB-303893-A (GB)
Title: Improvements in dyeing apparatus
IPC: D06B11/00
Filed: 1929-01-07
Abstract: 303,893. Eclipse Textile Devices, Inc., (Assignees of Hasbrouck, L. B.). Jan. 12, 1928, [Convention date]. Multiple-delivery piston pumps with stroke variation and crank and lever actuation.-A mass of yarn wound on a core such as a cone or bobbin is dyed through with bands of different colour, measured quantities of the dyes being withdrawn from the reservoirs and simultaneously injected by pistons through grooved needles into different parts of the mass. The cone C is mounted on a carriage W1 which is reciprocated along rods W8 against an adjustable stop W21 by a handle W16 so that the needles J2 enter the yarn mass. The needles J2 are adjustably mounted in pairs in chucks on nozzles J1 on the measuring chambers P2, into which chambers liquid is drawn past non-return valves P23 on raising the pistons P6. These pistons are mounted on a slide P13 having a guide P14, and are actuated simultaneously when the cone C is in advanced position, by a single turn of a crank P8 connected by a rod P9 and links P10, P12. The length of stroke of the slide P13 may be varied by the adjustment P16; while the lengths of stroke of some of the individual pistons may be adjusted by means of collars P20 which permit a regulatable amount of lost motion. The collars are so arranged that least dye is injected into the cone where it has the smallest diameter. Specification 303,892. [Class 15 (i), Dyeing &c., Apparatus for], is referred to.
Patent GB-910475-A (GB)
Title: Improvements in and relating to ventilating fans
Inventor: DOWNING JOHN KENNETH
IPC: F24F7/013
Filed: 1961-01-05
Abstract: 910,475. Ventilating-fans. VENT-AXIA Ltd. Jan. 5, 1961, No. 576/61. Class 137. In a ventilating fan comprising an openended casing for mounting in a through-opening in a wall, window partition or the like of the room to be ventilated, a rotary impeller mounted within the casing, and a protective grid at the outer end of the casing, the casing 2 has a detachable inner end portion 5 carrying the impeller 3, and the grid 4 is detachably mounted on the casing's cuter end portion 7 so that on detachment of the inner end portion 5 the grid 4 is releasable from a location within the room and is withdrawable into the room. The grid 4 is guided into a seating on a radially inwardly projecting peripheral lip 29 of the portion 7 by three peripherally spaced axial ribs 31. These ribs diverge slightly inwards to permit easy location of the grid from within the room, frictionally engaging the cylinder wall 30 of the grid 4. Three manually releasable catches 33 pivotally mounted on pins 34 for a movement in a transverse plane across the inner face 36 of the grid 4 lock the grid against withdrawal from the seating. The casing 2 is held in position in the through-opening by screwing the outer end portion 7 on to an intermediate portion 6 of the casing. Interposed between the glass pane or wall 1 and the end face of portion 7 and a flange 11 of portion 6 respectively, are two washers 14 and 12 of rubber or other resilient material. An electric motor 9 to drive the impeller 3 is mounted centrally, in the portion 5 by a spider 8. Inwardly projecting flanges 19 on four equispaced locking plates 15 engaged in grooves 16 in the portion 5 are secured by bolts 17 which also retain within the easing a shutter device (not shown). The flanges 19 engage in bayonet fashion behind four lugs in the flange 11, so securing the portion 5 to the portion 6. A pair of cords 18 projecting through bores in a pair of the bolts 17 are used by pulling one or the other to operate the shutter device.
Patent GB-392277-A (GB)
Title: An improved construction of money box
IPC: A45C1/12
Filed: 1932-01-08
Abstract: 392,277. Money-boxes. ROBINSON, P., 59, Eastcheap, London. Jan. 8, 1932, No. 640. [Class 18.] A money-box, for enabling a person to set aside money for different purposes, is divided into a number of compartments and has a lid formed with coin slots corresponding to the compartments and with guides for a strip of cardboard &c. bearing or adapted to bear designations of the purposes. As shown the lid 3 is slidably mounted in guides 4 at the sides of the box and can be locked by a padlock engaging a hole 8 in the lid and a hole in the contiguous end 2 of the box. The slots 5 are formed in the lid nearer to one longitudinal edge than the other and the indicating strip 6 is slidably mounted in guides 7 formed on a strip of metal fixed to the lid behind the slots. The partitions may be formed with curved parts forming the bottoms of the compartments to facilitate extraction of the contents or, according to the Provisional Specification, may form part of a strip of metal bent to rectangular zigzag shape.
Patent GB-574194-A (GB)
Title: Improvements in electrically heated hot water bottles
IPC: A61F7/00
Filed: 1944-01-13
Abstract: 574,194. Two-part couplings. JONES, A. R. H. Jan. 13, 1944, No. 680. [Class 38 (i)] [Also in Group XI] A hot water bottle 10 carries an immersion electric heater A, B, mounted in a moulded screw cap 12 which carries the terminal pins 13 within an internally threaded ring 14. Connection is made by a plug 19 having sockets 20, which is placed in position and secured by a threaded ring 21 which is movable over the flex 15. The heater elements A, B are connected together at C, which is connected to one of the pins 13, and the other ends of the elements are connected to the other pins 13. A switch 16 enables the elements to be connected in series, in parallel, or only one element, to obtain three different temperatures, or, if the elements have unequal resistances they may be connected in series or either element may be used alone. Alternatively, only two connections may be used, for either of the elements alone. In another arrangement, a single heating element only may be used.
Patent GB-1303782-A (GB)
IPC: H01F10/06
Filed: 1971-01-07
Abstract: 1303782 Magnetic storage arrangements INTERNATIONAL BUISNESS MACHINES CORP 7 Jan 1971 [23 April 1970] 755/71 Heading H3B In a word organized store, each magnetic storage element 15, Fig. 1, comprises a pair of coaxial magnetic films 11, 13, separated by a conductive, non-magnetic film 12, and writing is by a burst of coincident pulses. A word conductor 10 passes along the axis of the element, and a bit conductor 19, Fig. 4, passes around the element. A sense amplifier is  connected to the bit conductor, but is disabled during writing. The magnetic films have easy axes of magnetization parallel to the element axis, the two stable states correspondto 0 and 1 being with the films magnetized in opposite directions along the element axis, Figs. 2, 3 (not shown). Writing.-The basic writing process is shown in Fig. 6. A word pulse 31 is passed along the central conductor, and a pair of oppositely poled pulses are passed along the bit conductor. The polarity of the first one of the pair of pulses determines whether a 1 or a 0 is stored. The magnetization of the inner film 11 changes more slowly than that of the outer film 13, as shown at D, Fig. 6, this also occurs during reading, and is essential to reading since the net output induced would otherwise be zero. The writing currents required by the basic Fig. 6 process are prohibitively large, and are reduced by using a burst of N pulses 31, each with its coincident pair of bit pulses, Fig. 9 (not shown). The reduction in bit current for a given word current and with 2#N#1000 is given by Figs. 10-12 (not shown). For reasons explained below, one or more pre-read pulses are applied on the central conductor alone when writing is terminated. Reading.-To read, a pulse is applied to the central word conductor; the effect of this is shown in Fig. 14 which is a plot of the storage element output against the bit current used in writing for various values of N. If a single read pulse is applied when a 1 has been stored, the stored bit may be destroyed by a reversal of magnetization for bit currents above 150 mA, as shown. If however the bit current is lower, say 100 mA, the first read pulse partially erases the stored bit, but a second read pulse restores it. Thus successive read pulses make the state more stable, through the maximum bit current remains around 150 mA. To achieve this stable state, pre-read pulses are applied at the end of a writing cycle while the sense amplifier is still disabled. Word line pulses should have a duration less than the damping time of the conductive film 12, Fig. 1; for a film 6000 Š thick this is some 70 nS. Two or three dimensional stores may be formed, and several words may be formed on each word line. In this latter arrangement, one word may be written into while others on the same line are read, Figs. 21, 22 (not shown).
Patent GB-1069195-A (GB)
Title: Process for the production of polyisocyanates
Inventor: MEISERT ERNST
IPC: C07C265/14
Filed: 1965-01-07
Abstract: Amidoisocyanates of the formula <FORM:1069195/C2/1> in which R is an alkylene or cycloalkyl radical, Q is an alkylene or cycloalkyl radical of more than 3 carbon atoms, X is a hydrogen atom or a group -CO-NH-R-NCO and z is 1-6, are prepared from a reaction mixture containing at least 4 mols. of an aliphatic or cycloaliphatic diisocyanate with 1 mol. of a dicarboxylic acid of the formula HOOC-Q-COOH at 50-200 DEG  C., the dicarboxylic acid being one that does not form an anhydride under the reaction conditions.  Examples are given of the manufacture of products from (1) hexamethylene diisocyanate and adipic, azelaic and sebacic acids; (2) tetramethylene diisocyanate and sebacic acid; and (3) cyclohexane-1,4-diisocyanate and adipic acid.  The products of some of the examples are resinous.  Other specified reagents are pentamethylene diisocyanate, cyclohexane - 1,3 - diisocyanate and 4,41 - diisocyanatodicyclohexylmethane on the one hand and hexahydroterephthalic acid on the other hand.
Patent GB-876109-A (GB)
Title: Improvements in or relating to data processing apparatus
Inventor: LEWIS CHARLES HENRY
IPC: G01N30/86
Filed: 1958-10-09
Abstract: 876,109. Digital electric calculating-apparatus. GAS COUNCIL. Jan. 8, 1960 [Oct. 9, 1958], No. 782/60. Divided out of 873,936. Class 106 (1). A variable, whose value is initially at zero, then rises to a maximum and returns to zero at which it remains for a variable period before the cycle is repeated, is integrated separately over each of the intervals in which it is non- zero by apparatus comprising digital sampling means responsive to an analogue input representing the variable and providing electric signals representing the digital equivalent of samples of the variable sampled at different instants, means for adding the digital values from the sampling means, and means responsive to the occurrence of a zero value of the variable to evaluate the sum of the values received by the summing means in the interval following the last preceding zero value. The variable, e.g. the position of a pen recorder in gas-phase chromatography apparatus, is represented in analogue form by the angular position of a code disc 1 having output conductors 2 selectively energized to represent the variable in digital form, preferably in a reflected decimal code. A sampler 3 comprising a number of trigger tubes converts the input on conductor 2, at regular sampling intervals, to decimal form on three sets of output conductors 4, 5, 6 representing units, tens and hundreds, by means of relay circuits in the anode circuits of the trigger tubes. The output from sampler 3 energizes one solenoid in each of three groups 7 of a mechanical calculating machine, the number being entered into the machine and printed by actuation of solenoid 19. When the variable is again zero, slow-to-operate relay 25 is actuated by sampler 3, and solenoid 26 is energized to actuate the "Total" key of the calculating machine which then prints the sum of all the sampled values since the last preceding zero. Relay 30 then operates to cut out solenoid 26, but relay 25 remains operated until the sampled value again departs from zero. Cam-operated contacts 13-16 provide timing and energizing pulses to sampler 3 and solenoid 19.
Patent GB-137588-A (GB)
Title: Improvements in or relating to fasteners for hinged doors or windows, such as the doors of show cases, and the like
IPC: E05C9/08
Filed: 1919-01-13
Abstract: 137,588. Bruce, J. S. Jan. 13, 1919. Multiple fastenings for doors. - A fastening for show-case doors, windows, &c., of the espagnolette type, with a vertical rod turning in bearings and having engaging members at its ends, is operated by a handle which passes through the door. In the arrangement illustrated, the spindle 1 of the handle 2 carries on its inner end a bifurcated arm 3 in which is mounted a rod 8 capable of turning and sliding. Sliding through the rod 8 is a rod 9 parallel with the main fastener rod 4 and eccentric to it. By these connexions, a rotary movement is given to the rod 4 when the handle is turned. The fastening-members 10 at the ends of the rod 4 may have rounded ends 11 and co-operate with hook-shaped members 13 on the framing. In the case of double doors, the members 13 are placed on the opposite door, and additional similar members are mounted on the frame, as shown. As will be seen from Fig. 4, when the rod 4 is turned, the door 2a is forced open, while at the same time the opposite door is held stationary in the closed position.
Patent GB-102394-A (GB)
Title: Improvements in Apparatus for Drying Wool or other Fibrous Material.
Inventor: WALKER HUBERT
IPC: F26B13/00
Filed: 1916-01-19
Abstract: 102,394. Walker, H. Jan. 19, 1916. Endless-band conveyers, fibrous material carried on.-In drying-apparatus of the kind comprising a chamber with a series of superposed perforated cylinders, which are caused to revolve and are arranged in staggered relationship, and a fan or blower for forcing hot air through the cylinders to dry fibrous material passing round them, two endless aprons or two sets of endless tapes are passed under and over the cylinders and supporting-rollers to enable hanks of yarn and short lengths of wool, cloth, &c. to be passed through the apparatus and dried. In the apparatus shown, the material passes from a back-washing machine through two pairs of nip-rollers F<1>, F<2> and a pair of travelling aprons or tapes f, f<1> between them to the feedrollers C of the drying-apparatus, whence they are carried between aprons or tapes B around the series of perforated cylinders A, and discharged by the delivery rollers D. Guide-rollers or small drying-cylinders b, b<1> cause the aprons or tapes to cover nearly the whole circumferences of the first and last cylinders A. The aprons or tapes in their return path are supported bv small rollers b<2>. Reference has been directed by the Comptroller to Specification 10806/86.
Patent GB-1526631-A (GB)
Title: Semiconductor injection lasers
IPC: H01S5/00
Filed: 1977-01-11
Abstract: 1526631 Semiconductor lasers HITACHI Ltd 11 Jan 1977 [12 Jan 1976] 00993/77 Heading H1C In a semiconductor laser having an active layer 4 sandwiched between a P-layer 5 and an N-layer 3 either the P-layer or the N-layer is of stripe mesa form having a base whose thickness lies between 0À8 and 1À5 Ám.
Patent GB-578298-A (GB)
Title: Improvements in electric cables
IPC: H01B7/29
Filed: 1942-01-23
Abstract: In an electric cable, the rubber insulation is protected against the action of external air or air trapped between the strands of the conductor or between the conductor and insulation by an outer and/or inner layer of a composition comprising a mixture of polyisobutylene with a synthetic rubber-like material consisting of (a) polymerized-chloro butadiene, or (b) a copolymer of butadiene and acrylic acid nitrile, the ratio of the polyisobutylene to the synthetic rubber-like material being greater than 4 to 1 and not greater than 5 to 1.  Solid polymers of ethylene may be incorporated in the first composition.  The outer layer is enclosed by a thin covering of a material which is at least temporarily heat-resistant, e.g. a thin film of "Cellophane" (Registered Trade Mark), or cellulose triacetate or a layer of polymerized 2-chlorbutadiene or a copolymer of butadiene.  Examples of suitable compositions are given. Specification 530,512 is referred to.
Patent JP-H11194792-A (JP)
Title: Speech recognition system, method of speech recognition, and recording medium recorded method therefor
Inventor: AMANO AKIO
IPC: G10L15/28
Filed: 1998-01-05
Abstract: PROBLEM TO BE SOLVED: To achieve speech recognition of a large vocabulary by a small throughput without deterioration in precision of recognition. SOLUTION: A speech inputted from a speech input means 1 is analyzed by a speech analysis means 2 and a time series of feature vectors is outputted, and a speech section is judged by a speech detection means 3. In an acoustic verification means 4, the time series of the feature vectors is collated with a standard pattern to a speech basic unit stored in a standard pattern storage means 5, and in a word evaluation means 6, a recognition object is evaluated based on the result of the collation. In the acoustic collation means 4, each standard pattern is collated with the above-mentioned input voice over the entire interval of the feature vector time series, and the result of the collation is obtained for each standard pattern as a time series.  The word evaluation means 6 evaluates each word and obtains the evaluation result according to the recognition result, based on the result of the collation of each standard pattern obtained as the time series and information of a word dictionary 7 in which words to be recognized are described as a list of speech basic units.
Patent JP-H04234507-A (JP)
Title: Composite cam shaft and its manufacture
Inventor: YOSHIMOTO KAZUYUKI
IPC: F01L1/04
Filed: 1991-01-07
Abstract: PURPOSE:To improve the torsional rigidity of a shaft part and the joining strength between cam pieces and the shaft part by unevenly distributing hard particles (carbide particles), added in a molten light alloy, in the outer peripheral vicinity of the shaft part. CONSTITUTION:Carbide particles 4 are unevenly distributed in the outer peripheral vicinity of a shaft part 3 of a composite cam shaft 1 composed by casting plural cam pieces 2, consisting of material having excellent abrasion resistance, in the shaft part 3 composed of a light alloy material. To manufacture the composite cam shaft 1, respective cam pieces 2 are set in a mold 6, then a molten light alloy, in which the carbide particles 4 are added, is poured in the mold 6, and finally the mold 6 is turned to disperse the carbide particles 4 by centrifugal force of the mold itself.