baber/WOPTO huggingface dataset:
Patent GB-1423038-A (GB)
Title: Pcm exchanges
IPC: H04Q11/06
Filed: 1973-05-18
Abstract: 1423038 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 18 May 1973 [18 May 1972] 23940/73 Heading H4K In a TDM, PCM switching matrix, each crosspoint gate FG is controlled by an associated coincidence circuit JA which produces an output in response to identical address signals arriving thereat over those row and column conductors IF and UF which define the crosspoint. Each time slot is divided into an initial address word portion and a final pcm word portion, an entry inserted in the former being used by the crosspoint circuitry to open the crosspoint for the accompanying pcm word. In operation, each channel of an incoming highway is gated into a respective storage cell of a buffer memory MM. An address memory AM associated with the buffer memory MM is filled, by a not shown common control, with the addresses of the column conductors to which each channel is to be connected via the matrix. Each column conductor is connected to a buffer store SM pertaining to an outgoing highway and also to an address register AR which repetitively emits the address of the column conductor. The memories MM, AM and SM and the register AR are all scanned synchronously so that during any one time slot a column address is initially read out of AM and applied to its associated row IF while at the same time the column address UF is read out of AR and applied to column UF. These two column addresses are effective to enable a unique coincidence circuit JA which thereupon opens its associated crosspoint gate FG so as to subsequently pass the buffered PCM word from MM to SM. The pulse series ##applied to each crosspoint clears the crosspoints between time slots. The coincidence circuit JA comprises a flipflop which is set to enable the associated crosspoint gate and an AND gate to which the bits of the address words from the row and column conductors are applied. Equal bits enable the AND gate to step a counter which on reaching a predetermined count (i.e. the number of bits in the address word) sets the flip-flop (Fig. 3, not shown). As an alternative, if the first bits are equal the flip-flop may be set by a clock pulse applied via a capacitor (Fig. 4, not shown) or an inhibit gate (Fig. 5, not shown), the flipflop being reset if there is any subsequent inequality. The system caters for 16 channels in a 125 Ásec. frame (2À048 MHz bit rate). The address and pcm words are both of 8 bits and may be transmitted in series (preferably) or parallel format. The matrix is constructed as an integrated circuit having (4n + 1) external connection terminals where n is the number of rows or columns. The singularity in the expression 4n + 1 represents the common resetting input for the crosspoint circuits. A prior art matrix (see Specification 1,417,036) of similar capacity has 2n + n<SP>2</SP> connection terminals.
Patent GB-1105924-A (GB)
Title: Preparation of substituted carboxylic acid esters
IPC: C07C67/04
Filed: 1965-06-04
Abstract: Substituted carboxylic acid esters are prepared by reacting a non-tertiary olefine with a source of carboxylate ions and an inorganic metal salt in the presence of a Group VIII metal salt and an anhydrous solvent at between 50 DEG  and 250 DEG  C. to produce a saturated carboxylic acid solvent substituted by the anionic component of the inorganic metal salt.  Ethylene, propylene, butene-1, cis-butene-2, transbutene-2, pentene-1, pentene-2, hexene-1, hexene-2, hexene-3, t-butylethylene, 3-methylbutene-1, norbornylene, norbornadiene, cyclopentene, cyclooctene, and cyclododecene are mentioned, and the inorganic metal salt may be a halide, cyanide, nitrate, nitrite, sulphate, sulphite, bisulphate, bisulphite, phosphate or phosphite, and the cupric and ferric salts are preferred.  Suitable solvents are carboxylic acids, nitriles and esters, and mixtures of carboxylic acids with up to 50 vol. per cent of pentane, hexane, isooctane, benzene, carbon tetrachloride, chloroform and dichloroethane. Examples describe the preparation of 1-chloro-2-acetoxy ethane from ethylene, 2-bromo-7-acetoxynorbornane from norbornylene, 1-bromo-2 -acetoxypropane and 2 - bromo - 1 - acetoxypropane from propylene, 1-chloro-2-acetoxybutane and 1 - acetoxy - 2 - chlorobutane from t-butyl ethylene, 1-chloro-2-acetoxycyclopentane from cyclopentene, 1-chloro-2-acetoxybutane and 1 - acetoxy - 2 - chlorobutane from butene - 1, B - nitrato - isopropyl propanoate from propylene, 1 - bisulphato - 2 - butyoxy-4-methylpentane from 4 - methyl - pentene - 1 and 1-nitrato-2-acetoxypropane from propylene.
Patent GB-1434305-A (GB)
Title: Aircraft control system using inertial signals
IPC: B64D45/04
Filed: 1973-05-21
Abstract: 1434305 Automatic control of aircraft BENDIX CORP 21 May 1973 [25 May 1972] 24106/73 Heading G3R A system for controlling an aircraft so as to capture and follow a radio beam comprises unspecified means 2 to produce "beam error" (angular departure of the aircraft from the beam) signal, means 6, 8, 12 to produce an attitude rate signal and means 20 to produce an inertially referenced signal, the signals being processed to produce a combined signal which is filtered at 24 and used to effect control. As shown, the system controls the glide path but a corresponding arrangement Fig. 4 (not shown) is used for control in azimuth. The "beam error" is expressed as the angle subtended by the aircarft and the beam, measured at the ground transmitter but all the apparatus shown is carried by the aircraft. The signal from 2 is smoothed by a "desensitizer" 4 and is combined with the other signals in the manner shown; equations for the mathematical terms are given. Control is not effected until a switch 40 is closed, and this occurs when polarity detectors 28, 30 and logic gates 32...36 establish that the aircraft is parallel to the beam. The overall arrangement and time constants of the filters are intended to cause the aircraft to capture the beam asymptotically without susceptibility to wind gusts and other disturbances.
Patent GB-1147141-A (GB)
Title: Improvements in or relating to liquid-fuel burners
Inventor: FINDLAY WILLIAM HUNTER
IPC: F23D11/08
Filed: 1965-06-08
Abstract: 1,147,141. Oil burners. JAMES HOWDEN & CO. Ltd. 24 March, 1966 [8 June, 1965], No. 24149/65. Heading F4T. A burner for liquid fuel such as paraffin oil has a rotary impeller 26 with a bottom set of blades 28 to cause a flow of combustion air into the combustion chamber through an annular slot 31, a rotary fuel tube 20 with a wheel 24 to spray fuel radially outwards into the chamber and upper blades 27 to induce a flow of hot gas downwards from the centre of the combustion chamber into the stream of fuel to assist in vaporization. Fuel is supplied into a cup 8 from a constant level reservoir and lifted therefrom by rotation of a tube 17 co-operating with a helical groove. The combustion air supply is controlled by a hit and miss valve 12 and ignition is effected by an electric glow coil 35. In a modification fuel enters through a rotatable wasted plug rotated manually or by a thermostat and coupled to valve 12 so that the combustion air supply is varied proportionately with the fuel supply.
Patent GB-332085-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B39/16
Filed: 1929-08-07
Abstract: 332,085. Aktiebolaget Svenska Kullager-Fabriken. Oct. 23, 1928, [Convention. date]. Rolling.-The halves 1, 2 of open guides are automatically closed around the work when or after it is gripped by the rolls, e.g. by an electromagnet 10 in shunt circuit or relay with the roll-driving motor so that the armature 11 moves frame 5 up, the inclined sides of which close the parts 1, 2 of the guides. A spring 9 re-opens the guides. Cooling water is supplied through the pipe 12. In Fig. 4, fluid pressure on piston in a cylinder 29 closes the guides, the fluid being turned on by the work emerging from the roll and tripping a levert 18 which moves a valve spindle 27 to open a valve 25 against spring pressure. When the work has passed a lever 18 falls, e.g. by spring pressure, and opens a relief valve 32 connected to the cylinder 29, allowing a spring 30 to re-open the guides. The guides may also be closed through toggle levers moved by the top roll when raised by the entering work.
Patent GB-834254-A (GB)
Title: Process for the production of aromatic hydroxy compounds
Filed: 1956-08-08
Abstract: Dihydric phenols are prepared by heating an ortho- or para-halophenol or a mixture of such compounds with an anhydrous alkali metal hydroxide to a temperature of about 150 DEG  to 350 DEG  C. under as far as possible anhydrous conditions and removing the volatile reaction products as quickly as possible by passing a current of inert gas through the reaction mixture or by azeotropic distillation. The products are resorcinol, pyrocatechol and hydroquinone with some high-boiling phenols, probably trihydroxydiphenyls.  In examples: (1) o-chlorophenol is added dropwise to sodium hydroxide heated to 280 DEG  C. while stirring and passing nitrogen through the mixture, water is distilled off, the mixture heated to 320 DEG  C., cooled, acidified with hydrochloric acid, extracted with butyl acetate and the extract distilled to give a resorcinolpyrocatechol mixture and a residue of high-boiling phenols; (2) a mixture of o-chlorophenol and o-dichlorobenzene is added dropwise to sodium hydroxide heated to 280 DEG  C., water is distilled off with dichlorobenzene and the mixture worked up to give a resorcinol and pyrocatechol. Further examples specify the use of potassium hydroxide, other temperatures or the use of a mixture of halophenols.
Patent GB-703147-A (GB)
Title: Kitchen utensil for cutting and slicing articles of food
Inventor: SCHAEFFER LEWIS CARLTON
IPC: A47J43/25
Filed: 1952-09-30
Abstract: 703,147. Slicing vegetables. KITCHEN-QUIP, Inc. Sept. 30, 1952, No. 24446/52. Class 5 (1) A rotated slicer or cutter 22 of hollow truncated cone shape is located to close the open bottom of a hopper 12 and is supported on a shaft 16 in an inclined bearing 15 integral with the hopper 12 which also has an integral depending stem 14. The slicer 22 is detachably connected to the hand rotated shaft 16 by slots 23 in the inner end of the cutter to receive inclined lugs 20 on a disc 18 on the shaft 16 whereby rotation inserts the lugs in the slots and reverse rotation withdraws the lugs. The hopper is provided with a hinged safety cover 28 which may be pushed down to press the material against the sharp edges 27 of slots through which the slices pass to the inside of the cutter which is inclined to discharge the slices. The stem 14 is hollow, and triangular so that it can be lifted off its clamp 38 or may receive the triangular uprights of support legs, Fig. 2 (not shown), resting on a table.
Patent GB-317991-A (GB)
Title: Throttle valves for carburettors
IPC: F02M1/00
Filed: 1928-08-25
Abstract: 317,991. Bentley Motors, Ltd., and Tomlins, R. Aug. 25, 1928. Spray carburettors.- To ensure that the correct area of opening of the outlet 8 of a slowrunning passage is exposed when the throttle valve 2 is in its closed position, packing pieces 4 are secured to the throttle disc adjacent the outlet. These packing pieces are inserted between shoulders 5, are secured by a screw 7 and serve to adjust the thickness of the controlling edge in the vicinity of the outlet 8.
Patent GB-379104-A (GB)
Title: Tin-openers
IPC: B67B7/44
Filed: 1931-09-01
Abstract: 379,104. Tin-openers. COOPER, S., 6, Queen's Court, Church Road, Upper Norwood, London. Sept. 1, 1931, No. 24524. [Class 66.] A tin-opener is provided with a piercer 10 separate from the cutter blade 4 and disposed perpendicular thereto, an enlarged head 11 facilitating the application of hand pressure. A guide 12, Fig. 3, formed either as a separate metal washer or integral with the head may be provided to enable the cutter to be used around the edge of a tin. The opener may be provided, as shown in Fig. 3, with a fulcrum 5 at the opposite side of the blade to the cutting edge 7, or a fulcrum 9, Fig. 4, may be formed on an off-set arm 8 of the opener, adjacent to the cutting edge.
Patent GB-356439-A (GB)
Title: Improvements in or relating to ball castors
IPC: B60B33/08
Filed: 1930-08-18
Abstract: 356,439. Ball castors. NEWTON, A. B., 65, Brandwood Road, Kings Heath, Birmingham. Aug. 18, 1930, No. 24623. [Class 52 (i).] An auxiliary race of antifriction members taking the thrust of the main ball in a ball castor has pockets in the side wall of the cage to allow certain of the members to be freed from pressure on entry. In the preferred form a separate annular ball race 12 is housed in the castor body and has spaced pockets with depending lips 14 into which the balls may drop. The castor may be attached by a stem with quick and slow threads cut thereon.
Patent GB-306604-A (GB)
Title: An improved process for removing rust, scale, dirt, or grease from iron and steel articles
IPC: C23C22/73
Filed: 1927-08-22
Abstract: 306,604. Cole, W. H. Aug. 22, 1927 Divided on 298,328. Cleaning; coating.-A process for removing rust, scale, dirt, and grease from iron and steel articles comprises heating them in an autoclave with dilute phosphoric acid. The resulting iron phosphate solution may be used for the production of rust-proofing solutions described in Specification 298,328.
Patent GB-827793-A (GB)
Title: Improvements relating to commercial motor vehicles
Inventor: WATTERS HAROLD
IPC: B60N2/01
Filed: 1957-08-03
Abstract: 827,793. Vehicle cabs. MORRIS COMMERCIAL CARS Ltd. July 23, 1958 [Aug. 3, 1957], No. 24680/57. Class 108(1) A forward control cab 1 has at least one of its rear corners truncated so as to create anobliquely disposed door opening 2. When open the door projects little beyond the cab 8 and the body 6 may be cut away at 7 if desired.
Patent GB-1107625-A (GB)
Title: A spreadable plug for securing fixing screws
IPC: F16B13/12
Filed: 1965-06-11
Abstract: 1,107,625. Wall plugs. A. FISCHER. 11 June, 1965, [18 June, 1964], No. 24780/65. Heading F2H. A resilient plastics wall plug for fixing corrugated sheeting comprises a sleeve 1 having a divided portion 1a and a sleeve portion 2. The sleeve portion 2 extends outwardly from a hole 8 and has longitudinal slots 3 so that it can collapse and accommodate screws of different lengths. The portion 1a has tongues 10 and notches 11 on its outer surface. The outermost part of the portion 2 is formed as a washer 5 which can seal the hole in the sheeting.
Patent GB-776227-A (GB)
Title: Improvements relating to disc rolling machines
IPC: B21H1/02
Filed: 1955-08-31
Abstract: 776,227. Rolling wheels and discs. GENERAL ELECTRIC CO. Aug. 31, 1955 [Sept. 1, 1954], No. 24996/55. Class 83 (4). In a method of rolling wheel discs 3, Fig. 1, such as are used in turbo-machines, pairs of radially disposed rolls 60 engage the discs on opposite faces and are moved towards each other to reduce the thickness and at least one pair is moved radially with respect to the blank according to a predetermined schedule. The rolls 60 and a second pair 61, Fig. 3, initially operate over the same region to form the web, but as the wheel increases in diameter the rolls 61 move radially outwards to form the web and a further pair of rolls 63 moves radially outwards to form the rim. The rolls are frustoconical in shape so that the velocities of the rolls and wheel discs are the same at any point of contact. A machine for rolling discs comprises a rotatably driven chuck 5 and three radially disposed beds 14 each of which carries one of the sets of rolls 60. The rolls are mounted in C-shaped frames 20 attached to housings 19 which are radially slidable on the beds 14 along guide-ways 16 under the action of pairs of cylinders or screw jacks 28. Pass adjustment of the rolls 60 is provided by wedges 48 which are slidable along guides 50 on the housings 19 and dovetail into wedges 54 which are vertically slidable in the frames 20 and carry bearings 58 for the rollers. Movement of the wedges 48 is obtained through rack- and-pinion mechanisms 44, 46 driven from cylinders or screw jacks 32 through a further rack-and-pinion mechanism 36, 40. The rolls 60 are driven through shafts 62 and universal couplings 64 from a motor 68 and gear-box 66. In a modification the rolls are mounted in bearings 42, Fig. 4, which are vertically slidable in the housings 20 under the action of eccentrics 84 and connecting rods 85. The eccentrics 84 are mounted on shafts 82 which are rotated by toggle and lever mechanisms 80 actuated from cylinder 32 attached to the housings 19.
Patent GB-348482-A (GB)
Title: An improved process for the manufacture of sodium bicarbonate and ammonium bicarbonate
IPC: C01D7/18
Filed: 1930-08-21
Abstract: In the known ammonia-soda process for the manufacture of ammonium and sodium bicarbonates from a solution of ammonia or ammonia and salt in water by precipitation with carbon dioxide, the carbon dioxide used as precipitant is derived from the gas evolved, preferably freed from tar, by the low temperature carbonization of the coal or lignite which is used as fuel for supplying the energy requirements of the process.  The low temperature carbonization furnace replaces the usual carbon dioxide generator in the plant.  The effluent gases have a substantially higher calorific value and are valuable as fuel gases.
Patent GB-1342966-A (GB)
Title: Rotary turbine having an arrangement to contain a ruptured turbine wheel
IPC: F01D21/02
Filed: 1971-04-19
Abstract: 1342966 Radial flow turbines SUNDSTRAND CORP 19 April 1971 [20 April 1970] 25146/71 Heading FIT To assist containment of the turbine wheel 16 on rupture an annular shoulder 91 on the wheel hub 72 projects into a recess 90 in the backplate 30, the shoulder having surfaces at an acute angle and the recess having a flat bottom surface and a peripheral surface 93 which increases in diameter away from the mouth of the recess. Three radial slots 88 in the wheel hub 72 provide for rupture into three pieces. A sealing ring 65 is supported by a ring 75 having projections 89 in the slots 88.
Patent GB-656673-A (GB)
Title: Improvements in nib sections for fountain pens
IPC: B43K5/18
Filed: 1948-09-27
Abstract: 656,673. Pens. MABIE, TODD & CO., Ltd., and SEARS, E. S. Sept. 27, 1948, No. 25194. [Class 146 (iii)] A nib section for a fountain pen comprises a tubular holder 8, a feed bar 9, and a split nib 10 having a smooth shank, the holder having a countersunk front end 14 to fit corresponding shoulders 22 and 25 formed on the feed bar and the nib, respectively, the feed bar and holder being provided with co-operating screw-threads 16, 17, respectively, at their rear ends to clamp the nib in place with the shoulder 25 thereon between the shoulder 22 on the feed bar and the countersunk front end 14 of the holder. The front portion of the main bore 13 of the holder may be enlarged to accommodate the shank of the nib, or alternatively, the feed bar may be recessed for this purpose.
Patent GB-278694-A (GB)
Title: Apparatus and method for the dry distillation of shales, brown coal or the like
IPC: C10B7/14
Filed: 1927-09-24
Abstract: 278,694. Patentaktiebolaget Grondal- Ramen. Oct. 7, 1926, [Convention date]. Retorts; coking processes.-Shale, brown coal, &c. are distilled by being passed through a tunnel oven D on travelling grates having perforated plates A and an upstanding flange B and supported by wheels C. By manipulating dampers x - - x<3> the grates in juxtaposition are caused to pass in a substantially continuous manner through the oven. Combustion gases heat externally tubes g through which the steam and gases evolved are circulated by fans e, these gases passing continuously through passages f and through the heating tubes and shale. The distillation compartment d' is divided by partitions k, k<1> into separate chambers communicating by spaces around the partitions. Steam may be added to assist the distillation if the shale is not damp enough, or a part of the mixture of steam and distillates may be cooled to condense the latter and the steam passed back into circulation.
Patent GB-742206-A (GB)
Title: Merocyanine dyes containing a chain substituent
IPC: C09B23/10
Filed: 1953-09-14
Abstract: 2 - Alkylmercapto - 4 - (2 - thienyl)thiazoles are made by a process analogous to that of example 2 of Specification 594,558 using 2-bromacetylthiophene.  2 - Alkylmercapto - 41 - methoxythionaphtheno - 71 : 61 : 4 : 5 - thiazole is made from b -bromo - b  - thienoylpropionic acid which is treated by a process analogous to that of example 14 of Specification 593,024 to produce a 2 - alkylthio - 4 - (21 - thienyl)thiazole - 5-acetic acid. The ring is then closed by a process analogous to that of example 12 of Specification 593,025 to give a 41-acetoxy-2-alkylthio - thionaphtheno - 71 : 61 : 4 : 5 - thiazole which is hydrolysed and methylated to give the 41-methoxy derivative.  2 - Acetanilidovinyl - 4 - (2-thienyl)thiazole is made by treating the 2-methyl derivative with diphenylformamidine.  2 - Acetanilidovinyl-41 - methoxythionaphtheno - 71 : 61 : 4 : 5 - thiazole is similarly made from the 2-methyl compound.  1- and 3-acetanilidovinyl-isoquinolines are also similarly made.  4 - (a  - ethoxyethylidene) - 2 - benzylthio - 5-thiazolone is made by heating N-dithiocarbobenzyloxyglycine, ethyl orthoacetate and acetic anhydride and distilling off the ethanol formed. Specifications 344,409, 513,170, 537,961, 593,024, 593,025, 594,558; 603,492, 625,347, [both in Group IV (c)], 633,736, 633,873, [Group IV (c)], and 633,874 are referred to.ALSO:Merocyanine dyes having the general formula:-<FORM:0742206/IV(c)/1> wherein R is an alkyl or hydroxy alkyl group, R1 is an alkyl group of 1 to 4 carbon atoms, n and d are 0 or 1, Z completes a heterocyclic nucleus and Q completes a nucleus of the 5-thiazolone or 5-oxazolone series, are prepared by condensing a cyclammonium quaternary salt containing an alkythio, aralkylthio, arylthio or acylarylaminovinyl group in the a  org -position with a compound of the general formula:- <FORM:0742206/IV(c)/2> R may be a methyl, ethyl, iso-propyl iso-butyl, n-butyl, n-amyl or b -hydroxy ethyl group.  Nuclei which Z may complete include those of the thiazole (including 2-thienyl thiazole), benzthiazole naphthathiazole, thionaphtheno-71, 61, 4 : 5-thiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzselenazole, naphthaselenazole, thiazolino, quinoline, iso-quinoline and 3 : 3 dialkylindolenine series.  The condensations are preferably carried out in a solvent such as pyridine, an alcohol or 1 : 4 dioxane, and a basic condensing agent can be used.  Examples of the preparation of the dyes are given, including those wherein the 5-thiazolone nucleus carries a 2-ethylthio, 2-benzylthio, or 2-phenyl substituent. Specifications 344,409, 513,170, 537,961, 593,024, 593,025, 594,558, 603,492, 625,347, 633,736, [Group IV(b)], 633,873 and 633,874 [Group IV(b)], are referred to.
Patent GB-1099908-A (GB)
Title: Improvements relating to shaped articles and their production from powdered high molecular weight organic polymers
IPC: B29C43/00
Filed: 1965-06-15
Abstract: 1,099,908. Moulding polymeric articles. E. 1. DU PONT DE NEMOURS & Co. June 15, 1963 [June 18, 1964], No. 25310/65. Heading B5A. Shaped articles are prepared by compacting and shaping a powdered linear polymeric resin, having a second under transition temperature above 250 C. and a room temperature flexural modulus of above 300,000 p.s.i., under a pressure of 10,000 to 100,000 p.s.i. whilst maintaining it at a temperature below 400 C. preferably below 300 C. The product thus formed may subsequently be sintered in an inert atmosphere to give enhanced strength. Resins suitable for use in the process are aromatic polyimides; aromatic polyamides, aromatic polyamide-imides, aromatic polyketones, polybenzotriazoles and aromatic polythiazoles.