baber/WOPTO huggingface dataset:
Patent GB-1108582-A (GB)
Title: A frequency divider arrangement
IPC: H03K3/45
Filed: 1965-05-21
Abstract: 1,108,582. Circuits employing controlled saturable reactors; frequency dividers. CITCOMPAGNIE INDUSTRIELLE DES TELECOMMUNICATION. 21 May, 1965 [19 June, 1964], No. 21741/65. Headings H3B and H3T In a pulse-frequency divider, a magnetic amplifier has two D.C. control windings e 1 , e 2  connected to respective capacitor charge and discharge circuits as shown and arranged so that m.m.f.s. due to currents in the contro I windings oppose each other and that the m.m.f. due to a current in winding e 1  is great enough to cause transistor T to conduct whether or not a current is flowing in winding e 2 . Preferably the capacitors C 1 , C 2  and resistors R 1 , R 2  have equal values, winding e 1  having more turns than winding e 2 . Feedback from the output of transistor T is supplied to winding e 1  through resistor R 5 . The output terminal S delivers pulses at half the frequency of the pulse input at E. Several circuits of the type shown in Fig. 1, may be connected together, Fig. 2 (not shown) to provide a frequency division by 2<SP>n</SP> at the output of the nth circuit.
Patent GB-371718-A (GB)
Title: An improved device for fastening electrical apparatus, more especially time switches, in their casing
IPC: G04C23/04
Filed: 1931-07-30
Abstract: 371,718. Time switches. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. July 30, 1931, No. 21751. Convention date, Aug. 2, 1930. [Class 38 (v).] A time switch or other electrical device is secured in a casing a by first placing a crossbar c on the movement of the time switch so that its ends engage two hooks d fixed on the side walls of the casing and then swinging the movement about the bar c till its backplate b engages a rivet f on the top of the casing. In this position the movement is held by means of a spring catch e engaging its front plate b, the catch e being fixed to the casing by the rivet f.
Patent GB-243675-A (GB)
Title: Improvements in scarlet fever toxin and antitoxin and methods for producing same
Filed: 1925-08-31
Abstract: 243,675. Dick, G. F., and Dick, G. H. Nov. 28, 1924, [Convention date]. Antitoxins, toxins, and immunizing and like serums.-A toxin and an antitoxin of scarlet fever are prepared from hµmolytic streptococci obtained from a. patient suffering from the disease. The toxin is prepared by inoculating broth containing a small amount of blood with a pure culture of the specific streptococci, incubating, and removing or killing the bacteria by filtration, heating, or addition of an antiseptic. The toxin filtrate is tested for sterility and kept in a refrigerator. The toxin so obtained is standardized with reference to a previous batch by comparison of the local skin reactions on injecting a very small quantity into a susceptible person and may be employed for preventive immunization, for the production of antitoxin, and for injection in small quantities to determine susceptibility to scarlet fever. Any organism may be tested for identity with the specific scarlet fever streptococci by determining the capacity of its toxin obtained in the above manner to give characteristic local skin reactions and to be neutralized in this respect by admixture with sterile convalescent scarlet fever serum. Antitoxin is prepared by injecting a horse with increasing doses of sterile toxin, obtaining the antitoxis blood serum, and concentrating and renning the serum, for instance by fractional precipitations with ammonium sulphate. The concentrated serum is then standardized against previously standardized toxin by means of the skin reaction test and is used in the treatment of scarlet fever.
Patent GB-427877-A (GB)
Title: Improvements in or relating to oil immersed electric apparatus
IPC: H01F27/04
Filed: 1933-07-26
Abstract: 427,877. Switchgear structures. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, GARRARD, C. C., and KEELEY, F. J., c /o General Electric Co., Witton, Birmingham. July 26, 1933, No. 21799/32. [Class 38 (v)] A container for oil-immersed apparatus such as transformers, condensers, or (as shown) a tee-off connection for a three-phase busbar system, is provided with a diaphragm device adapted to accommodate expansion and contraction of the oil and to act with pressure upon the oil, and is arranged adjacent an electric contact so that, on contraction due to leakage of oil, the contact is operated to give a warning or otherwise safeguardthe apparatus. The bus-bars 2 of each phase are interconnected within the chamber 3 by a flexible conductor 6 and surrounded by a split tube 8 supported by resilient members 9 and embraced by clamps 10. An upper chamber 4 has a cock 24 whereby the entire chamber is filled with oil, the cock 24 being then closed. Oil is then forced in through a valve 23 to the pressure required and the valve 23 sealed off. The pressure causes the faces of a series of superposed cells 13 containing gas to collapse inwardly and compress the gas therein. In normal operation expansion and contraction of the oil are compensated by a corresponding contraction and expansion of cells 13, but if undue contraction occurs, due to a leak in the container, the cells expand sufficiently to bring a contact 14 on to a contact 15 and so close a circuit to an alarm 20 or protective device or oil-delivery pump. The cells are secured to a plate 12 carried on shoulders 11 and one set may serve for the three containers 3 of the bus-bar system. When applied to a transformer, Fig. 2, (not shown), the cellchamber may be placed on the lid, and a conservator and relief-valve may be provided.
Patent GB-513193-A (GB)
Title: Improvements in amusement devices
IPC: A63G15/00
Filed: 1938-07-22
Abstract: 513,193. Actuating controllers. RIDYARD, T. H. July 22, 1938, No. 21846. Convention date, July 24, 1937. [Class 38 (iii)] [Also in Group XV] An electric motor 15 of an amusement vehicle is provided with a main series circuit including a resistance 76 which is adjusted before the vehicle is used and the speed is then controlled by bringing into operation a circuit 70 including shunt field coils for the motor. A revolving drum 22 is driven from one of the axles of the vehicle by gearing including a geneva stop mechanism and the drum carries cams which when the object moves operate switches 59<1> so that at least one is open at a time and the position of this one is periodically changed. The player by means of reins 70 moves a swinging contact arm over the ends of leads 61 leading to switches 59'. Whenever the player operated arm is in contact with a lead 61 the switch of which is open, the shunt circuit 70 is broken and the speed of the vehicles rises to its maximum. Specifications 5474/03, [Class 1321, and 230,630, [Class 132 (i)], are referred to.
Patent GB-221343-A (GB)
Title: Improvements in or connected with the doors of hopper waggons for railways, or the like
IPC: B61D7/16
Filed: 1923-08-31
Abstract: 221,343. Rollinson, R. M. Aug. 31, 1923. Operating doors by lever, link, and like mechanism.-The fall-down door D of a wagon is provided with an angle-piece B attached to the door near its edge, the depending part being provided with a hook B<2> with which is adapted to engage a hook-ended implement such as H so that the operator can raise the door into the closed position when standing at the side of the wagon. L is the usual door-catch. A bracket A clamped to the usual V-piece that carries part of the brake mechanism serves as a rest and fulcrum for the operating lever.
Patent GB-316789-A (GB)
Title: Improvements in and relating to thermionic vacuum tubes or wireless valves
IPC: H01J25/68
Filed: 1923-08-31
Abstract: 316,789. Seymour, C., and Hodgson, B. Aug. 31, 1923. Vacuum tubes.-A two or three electrode valve for amplifying or detecting is arranged so that in operation a substantial change in the paths or orbits of the electrons or a deviation of the electrons from the paths of the lines of force between the electrodes is produced; the valve acts as a detector whether the working position corresponds to rectification at one of the bends of the characteristic curve or on the straight portion between the bends. The period of time taken by electrons to travel, for example, from the cathode to the anode, is arranged to be of the order of a complete oscillation of a frequency it is described to detect or amplify, so that the valve acts as a detector or amplifier of oscillations of a particular wave-length. In the valve shown, the anode A consists of straight wire facing the filament cathode C and bent so that the ends outside the envelope are twisted together. The intermediate electrode B consists of a wire, one end of which may be twisted with one of the cathode leads. The electrodes are preferably arranged in the same plane.
Patent GB-632984-A (GB)
Title: Improvements in and relating to gas or vapour filled thermionic discharge devices
IPC: H01J17/04
Filed: 1945-08-27
Abstract: 632,984. Thermionic valves. M-O VALVE CO., Ltd., and RAMSAY, H. T. Aug. 27,1945, No. 22034. [Class 39 (i)] A gas or vapour-filled thermionic discharge device comprises cathode 13, control grid 12 and anode 11, the latter or any other electrode which in operation is continuously or periodically negative with respect to the cathode, having a thin sheet of molybdenum 26 attached to it by rivets 27 &c. so that it is protected from positive ion bombardment, thus reducing the sputtering action which is assumed to " clean up " the gas filling. The cathode is surrounded by an apertured screen 14, to which it is connected. A " labyrinth " plate 23 is attached by metal supports 24, 25 to the screen 14 and is so disposed relatively to the aperture 22 that all straight lines from cathode to anode are intercepted. The control electrode 12 is insulated from the screen by bushes 19, 20 and is surrounded by a quartz sleeve 21. The filling may be hydrogen or mercury. Specifications 541,919, 602,234 and 603,778 are referred to.
Patent GB-315799-A (GB)
Title: Process for making artificial marble
IPC: B28B1/00
Filed: 1929-07-18
Abstract: 315,799. Ter Smitte, J., Ter Smitte, J. C., and Ter Smitte, J. P. July 18, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Moulds. - A mould is coated with colouring matter which may be fluid or in powder form and uniform or variegated; the stone-forming composition is deposited thereon in a pappy state a portion at a time and after each portion has been deposited the mould is inclined or jogged to run the colour. The portions of stone-forming composition may themselves be variously coloured.
Patent GB-383661-A (GB)
Title: Improvements in or relating to the preservation of foodstuffs or other materials against rancidity
IPC: A23L3/26
Filed: 1931-08-04
Abstract: Human and animal foodstuffs, e.g. butter, potato chips or cattle feeds, and other commodities containing oils, fats and waxes and subject to rancidity, are preserved by exclusion or absorption of all light except that having wavelengths lying between 4900 and 5600 Angstrom units.  The commodity may be enclosed in a green protective screen, e.g. by wrapping in green transparent paper &c., or chemical means may be added to the commodity, capable of absorbing and excluding all the unwanted rays, e.g. an appropriate dye may be mixed with the commodity or a coating of chemicals having the required colour may be applied by painting on, dipping, &c.  The protective materials assist in maintaining the natural colour of the commodity. Specification 213,810, [Class 94 (i), Packing &c.], is referred to.
Patent GB-583629-A (GB)
Title: Improvements in or relating to signalling arrangements for electric pulse communication systems
IPC: H04Q1/442
Filed: 1944-11-09
Abstract: 583,629. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd. Nov. 9, 1944, No. 22121. Convention date, Oct. 11, 1943. [Class 40 (v)] In order to signal at a low frequency over a communication system using a pulse train for normal working of recurrence frequency greater than the highest frequency present in the transmitted intelligence, pulses are removed from the train at regularly recurring intervals leaving only pulses which recur at the required low frequency. The invention is described as applied to a multiplex intercalated pulse system in which at the transmitter a master synchronizing wave source 10, Fig. 1, controls pulse modulators 11, 12, 13 for the separate channels. through phase shifters 14; 15, their outputs being applied to a common line or radio link 18. At the receiver, the incoming pulses are applied to a control oscillator 20 and channel selectors 21, 22, 23. The synchronizing control output is applied also to the channel selectors through phase-shifters 24, 25 and the selected channel pulses are fed through condensers 27, 27A, 27B to demodulators 31, 32, 33. For low-frequency signalling over the first channel, for example, the output of modulator 11 is diverted by switch 17 through a frequency divider 16 controlled by the source 10 which provides a wave 30, curve b, Fig. 2, which is added to the pulses 1 of the channel to increase the amplitude of every fourth pulse. The latter pulses only are applied to the link 18 after clipping above the level 31. The frequency division factor is normally much greater than four. At the receiver, the wave 32, curve c, Fig. 2, is added to the pulses for channel selection and a subsequent clipping at level 33 yields the channel pulses only. When these are signalling pulses of low recurrence frequency they are not passed by condenser 27, but are fed through low-pass filter 28 to the signalling buzzer 29. Alternatively, the circuit 28, 29 may be connected to the output of demodulator 31, and instead of providing filter 28, the buzzer may respond only to low-frequency signals and act as a choke to the normal higher frequencies. The other channels have similar switches 17A, 17B, frequency dividers 16A, 16B, filters 28A, 28B and buzzers 29A, 29B, or a single frequency divider with appropriate switching may be used for all the channels.
Patent GB-405617-A (GB)
Title: Cylinder grinding tool
IPC: B24B33/08
Filed: 1932-08-06
Abstract: 405,617. Grinding cylinder bores. DEHN, F. B., 103, Kingsway, London.- (Automotive Maintenance Machinery Co. ; 816, West Washington Street, Chicago, U.S.A.) Aug. 6, 1932, No. 22129. [Class 60.] A tool for grinding cylinder bores, and comprising abrasive members 18 and guiding members 19 of felt or other fibrous material, has the guiding members impregnated with a lubricating medium. The abrasive members 18 may also be impregnated with the lubricant. A suitable lubricant comprises tallow or paraffin wax which is melted and graphite added to form a suspension therein, the felt then being immersed in the mixture or otherwise impregnated therewith. On cooling to the solid state the lubricant forms a stiffening medium for the felt, the guiding member being stated to wear awav at substantially the same rate as the abrasive members. Another lubricant comprises linseed oil, benzene, and graphite. The graphite may be omitted in either form. The tool comprises holders 15 for the abrasive members 18 and guiding members 19 slidable in grooves 20 in end plates 10, 11, being urged inwardly by springs 29 and adjusted radially by wedge members 23 on rotation of a screwed shaft 21 by a milled disc 30. A head 34 with a cross-pin 36 for engagement with the driving member is bolted to the upper plate 10. Specification 405,323 is referred to.
Patent GB-182713-A (GB)
Title: Improvements in or relating to trousers
IPC: A41D1/10
Filed: 1921-08-22
Abstract: 182,713. Pearce, A. Aug. 22, 1921. Crease-forming in trousers. -To preserve the crease of trousers and prevent bagging at the knees, two lengths of waterproof material B, C are sewn into the seams of the legs and united by a strip D of webbing which extends from the bottom edge of the strips B, C to the waist-band. The strip D is formed by stitching with a permanent fold or crease, which is adapted to fit into the crease of the trousers and is attached to the leg at suitable positions. The trousers may also be coated adjacent to the crease with a gum solution and the strips B, C are made to resist stretch in warp and weft and are somewhat smaller than the trousers legs.
Patent GB-206919-A (GB)
Title: Prepared food products and the process of preparing the same
IPC: A23L1/164
Filed: 1922-08-15
Abstract: 206,919. Luft, S. Aug. 15, 1922. Cereal preparations. - Cereals such as oats, barley, wheat, or rye, are hulled, moistened, flaked and roasted. The roasting is performed with agitation at a temperature, for oats, of 150‹ or 180‹ F. rising for an hour until 300‹ F. is reached, and produces a protective surface on the flakes. After roasting, the flakes from two or more kinds of grain may be mixed, and are then agitated at 200‹ F. while sugar, molasses, or syrup, and, if desired, aromatic or flavouring seasonings are added. Reference has been directed by the Comptroller to Specifications 3259/94, [Class 58, Grain &c.], and 10927/00.
Patent GB-222690-A (GB)
Abstract: 222,690. Wilkin, J. B. Oct. 31, 1923. Drawings to Specification. Knitting-appliances, hand, are graduated to serve as measures of length and the graduations are filled flush with a substance, preferably coloured and of similar material to the needle &c.
Patent GB-1088134-A (GB)
Title: Stocking suspender
IPC: A41F11/02
Filed: 1965-05-26
Abstract: 1,088,134. Stocking suspenders. E. Q. LAKE. May 25, 1966 [May 26, 1965], No. 22282/65. Heading A3V. A harness for use as ladies stocking suspenders comprises first and second straps 20, 21 having clips 13 for attachment to the stockings. The straps 20, 21 pass over the wearers' shoulders and are attached at the back to a back strap 12 which pass round the wearer's body and is attached to the straps 20, 21 at points 14, 15. A front strap comprising two portions 16, 17 is worn under the wearer's bust and has fastening means 18, such as ribbon which may be tied together. The front and back straps may be combined in a single body encircling strap which passes through slots in the straps 20, 21. The harness is particularly suitable for pregnant women. The straps may be made of resilient material.
Patent GB-1380129-A (GB)
Title: Benzofuran derivatives and preparation thereof
IPC: C07D307/79
Filed: 1972-05-12
Abstract: 1380129 Benzofuras-derived aminoalcohols KAKENYAKU KAKO CO Ltd 12 May 1972 [13 May 1971 14 July 1971 20 Oct 1971 6 Jan 1972] 22294/72 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein A is COR<SP>1</SP>, C( :NR)R<SP>1</SP> or Et; B is H when A is other than Et, or is 3- or 4- COR<SP>11</SP> when A is Et; R is C 1-5  alkyl; R<SP>1</SP> is C 1-4  alkyl, C 1-3  alkoxy or Ph; and R<SP>11</SP> is C 1-4  alkyl, Ph or Ph-C 1-2 -alkyl. In examples, the imines are prepared by reacting an acyl/3- chloro-2-hydroxypropoxybenzofuran with excess RNH 2 , and the ketones are prepared by (1) reacting an acyl/glycidyloxybenzofuran with RNH 2 ; (2) hydrolysing (e.g.) 7-(2-hydroxy-3- isopropylaminopropoxy) - 2 - (2 - methyl - 1,3- dioxolan-2-yl)benzofuran; (3) reacting an alkyl halide with the appropriate primary amine; (4) reacting a 3-alkylamino-2-hydroxypropyl halide with an acyl/hydroxybenzofuran; or (5) hydrolysing a corresponding N-acetyl derivative or an acyl/3 - alkyl - 2 - oxo- or 2 - phenyl - oxazolidin-5-ylbenzofuran. Starting materials otherwise prepared are 4 - acetyl - 5 - butoxy - 2 - ethylbenzofuran and 5- and 7-acetoxy-3-acetyl-2-ethylbenzofuran. Therapeutic compositions for oral and parenteral administration comprise compounds of the above formula, which are active in respect to diseases of the circulatory and peripheral systems, e.g. they show beta-adrenergic blocking activity and local anaesthetic activity.
Patent GB-423746-A (GB)
Title: Improvements in or relating to curtain drawing and supporting devices
IPC: A47H5/032
Filed: 1933-08-10
Abstract: 423,746. Suspending curtains. MILEY, F., 10, Clarence Avenue, Whitefield, Manchester. Aug. 10, 1933, No. 22337. [Class 52 (v)] A curtain drawing and suspending device comprises a coil spring d extensibly mounted on and anchored at one end to a fixed guide rod a disposed within a hem at the upper end of the curtain, the free end of the spring being formed or provided with a loop or ring k not encircling the guide rod for the attachment of a reeving cord i. Two L-shaped supporting rods a have their short limbs b pivotally attached at c to the top of the window frame, the outer ends of their long limbs resting in hooks g on brackets e. These outer ends are hollow to provide an anchorage for the ends of the coil springs d secured by pegs l or the ends may be drilled transversely for this purpose. At its free end each spring has a split pin, loop or turned-up coil k for the attachment of the reeving cord i which passes from one spring over a pulley f on the bracket e at the opposite side of the window to the other spring and then over the other pulley f and hangs down beside the window, the end having a ring adapted to be hooked over a screw or peg. The pivots for the pulleys f are formed by the upper fixing screws h of the brackets e. The guide rods a overlap at their inner ends, the overlapping portions being spaced apart to allow clearance for the curtains. To attach the curtain, the rod a is lifted off its hook g and swung down about the pivot c, the hem on the curtain slipped over the spring and its inner end fastened to the end loop of the spring. The outer end of the curtain may be fastened to the hook g.
Patent GB-775628-A (GB)
Title: Cuffs for garments
IPC: A41B7/00
Filed: 1955-08-04
Abstract: 775,628. Garment cuffs. CLUETT, PEABODY & CO., Inc. Aug. 4, 1955 [Aug. 18, 1954], No. 22521/55. Class 141. A method of making a cuff consists in assembling a lining layer 1 and two face layers 2, 3 in superposed relationship and turning inwardly the edges of all of the superposed layers, then removing the face layer 3, inverting it, and placing it with its inturned edges in alignment with those of the other layers, as in Fig. 14, the layers being secured by stitching 5 along the side edges and free end of the cuff. The garment sleeve 7 is inserted in the unstitched edge 8 of the cuff, and secured thereto by stitching 9. The lining layer is preferably cut away at the corners 12, 13.
Patent GB-634600-A (GB)
Title: Process for improving the tensile strength of polymeric materials
IPC: B29C55/14
Filed: 1947-08-15
Abstract: Molecular oriented polymers and copolymers of ethylene and vinylidene chloride in the form of sheets, films, strips, ribbons, tapes, bands and tubes are cold-drawn by applying tension at an angle greater than 30 degrees to the direction of the original orientation.  The first alignment of the molecules may be effected by cold-drawing, and/or rolling, and/or extrusion.  The cold-drawing may be effected by winding a strip or band into a tight roll, gripping the roll around the circumference with clamps and exerting tension parallel to the width of the strip, unwinding the strip and applying tension parallel to the length of the strip.  Another method is by expanding radially by internal pressure, e.g. gas or liquid, an extruded tube in conjunction with intermittent longitudinal stress, splitting the tubing lengthwise and re-drawing by applied longitudinal tension. When the width of a film is suitably chosen fibres of high tensile strength may be obtained.  Copolymers specified are those with vinyl acetate, which may be subsequently hydrolyzed, vinyl chloride, styrene and acrylic acid.  Lubricants, plasticizers, dyes, pigments, fillers, abrasives, heat, light or oxidation stabilizers may be included. The films may be used for furniture coverings, wearing apparel, fishing apparatus, dental floss, fabrics, packaging, backing tapes, in optics, and in laminated sheet materials.  Specification 471,590 is referred to.