baber/WOPTO huggingface dataset:
Patent GB-1099944-A (GB)
Title: Wringing apparatus for squeezing liquid from wet material
IPC: D06F45/22
Filed: 1965-06-16
Abstract: 1,099,944. Wringers. PASSAT MASCHINEMBAU Gm.b.H. June 16, 1965 [June 18, 1964; Feb. 2, 1965; Feb. 4, 1965], No. 25409/ 65. Heading D1A. [Also in Division F2] Wringing apparatus comprises at least two rollers one of which has a resilient periphery and has a space inside it for a pressure medium; such as compressed air. As shown in figure 2 the upper roller 4 has a rigid outer sheath 4<SP>1</SP> of a material of good thermal conductivity. The lower roller 7 is constructed of tyre-like members 7<SP>1</SP> which are resilient and contain compressed air. End plates 12 are provided to prevent axial movement when a load is applied. In further embodiments (not shown) the compressed air may be admitted to a single volume in the roller or to a continuous spiral tube inside the resilient roller. Two resilient rollers may be provided above or below a rigid roller. The resilient roller may be supported on auxiliary rollers and loading and unloading conveyor belts may be provided.
Patent GB-476774-A (GB)
Title: Improvements in or relating to high-pressure metal-vapour electric discharge lamps
IPC: H01J61/073
Filed: 1936-09-18
Abstract: 476,774. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V. J. Sept. 18, 1936, No. 25437. [Class 39 (i)] The electrodes of high - pressure mercury vapour lamps (from 10-100 atmospheres) having envelopes 4 mm. or less in internal diameter are preserved from contact with the walls of the lamp by sheaths surrounding them. Fig. 1 shows an electrode 2 projecting ¢ - 1 mm. from a thin quartz sheath 4 collapsed onto the lead 3. Fig. 2 shows a sheath formed as a tungsten helix which can be held in place by distorting its rear end to grip the wall of the tube. Dimensions of the tungsten sheath and the electrodes are given. The extent to which liquid mercury extends in the space behind the electrode in operation is adjusted by collapsing the tube onto the lead after the tube is sealed.
Patent GB-589799-A (GB)
Title: Improved method of forging solid metal articles
IPC: B21J5/02
Filed: 1946-01-21
Abstract: 589,799. Forging-dies. BROWN, D. Jan. 21, 1946, No. 25456/44. [Class 83 (iv)] An article is forged from a billet d in a semi-plastic state within a two part die b, c, the base portion c of which has a cylindrical cavity terminating in a conical part provided with an air vent f continuing said cavity, whereby the metal of the blank is forced to flow by pressure applied by a plunger a so as to fill said cavity completely. The plunger is formed with an air vent e.
Patent GB-1043596-A (GB)
Title: Improvements in gating circuits
IPC: G08C15/06
Filed: 1963-06-26
Abstract: 1,043,596. Diode gating; transistor amplifying circuits. NORTH AMERICAN AVIATION Inc. June 26, 1963 [July 2, 1962], No. 25459/63. Headings H3P and H3T. In a circuit for reproducing at an output terminal a voltage signal applied at an input terminal comprising first and second PN junction semi-conductor devices connected back-to-back between the input and output terminals, a unity gain amplifier and constant current source controlled thereby are connected to the second device so that when the voltage applied to the input terminal varies, and hence the current flowing through the second device varies, the voltages across the junctions are maintained substantially equal. In the arrangement of Fig. 1 three input terminals V 1 , V 2 , V 3  receive voltages from three different sources which are to be telemetered and control signals are applied to gating diodes 3, 9, 15 so that only one of the signals at V 1 , V 2 , V 3  appears at output terminal 50. If the signal at V 1  is to be passed by the gate negative potential signals are applied to terminals C 2 , C 3  so that diodes 9, 15 are forward biased and diodes 8, 10, 14, 16 are reverse biased, and a positive signal is applied to C 1  so that diode 3 is reverse biased. If the potential at V 1  is positive with respect to ground then a decrease in its magnitude tends to increase current 34 and hence the voltage drop across diode 2. In order to counteract the effects of the voltage drops across the diodes 2, 4 so that the signal at the output terminal closely follows the input signal transistor 26, constituting a constant current source, is connected to supply current to diode 4 and is controlled by the output from unity gain amplifier 22. Thus as the voltage at point 46 becomes more negative due to the decrease in magnitude of V 1 , amplifier 22 causes current 42 to decrease which requires an increase in current 40 to cause the emitter of transistor 26 to be maintained at the Zener voltage of diode 30. The potential of point 46 therefore decreases, current 36 is increased and the voltage at the interconnection of diodes 2, 4 decreases, decreasing the current 34 to its original value. Since the values of resistors 24 and 28 are selected to cause the current 36 to be such that the voltage drops across diodes 2, 4 are kept equal and opposite, the potential at terminal 50 is equal to the potential V 1 . The amplifier 22 of Fig. 1 may be of the form shown in Fig. 2 which itself forms an embodiment of the invention, transistor 60 in this case forming the unity gain amplifier and the baseemitter diodes of transistors 52, 54 forming the semi-conductor devices.
Patent GB-1027092-A (GB)
Title: Method of and apparatus for producing stalks for tools such as kitchen implements
IPC: B21K11/00
Filed: 1963-06-27
Abstract: 1,027,092. Making handles for kitchen tools; forging; trimming dies. EKCO PRODUCTS CO. June 27, 1963 [March 25, 1963], No. 25594/63. Headings B3A, B3H and B3W. A one-piece stalk for a kitchen tool, comprising a tool end portion 11, a shank portion 13, preferably of non-circular cross-section, and a handle end portion 12, Fig. 6 (not shown), is made by pressing a workpiece cut from wire stock between dies and applying end pressure to form an intermediate upset 14. Wire stock R, Fig. 7, is fed by friction drive wheels through a straightener 31 to a shear 30, driven through linkage 34, 33, 32, Fig. 2 (not shown), from the press, and the cut workpieces are stacked vertically in a magazine 35. These workpieces are removed successively from the bottom of the magazine by a reciprocating shuttle mechanism 38, Fig. 9 (not shown), actuated through linkage 44, 43 and pinion 42. Shuttle 38 delivers the workpieces to a point 60, Fig. 7, where they are picked up and transferred successively through forging dies 20, 21 and trimming die 22, by sets of spring biased transfer fingers such as 65, 66 carried by a transfer arm 61. This is reciprocated horizontally through linkage 63, 64 and pinion 64a, Fig. 9 (not shown). Both pinions 42, 64a mesh with a rack 40 driven through rod 41, Fig. 1 (not shown), from the press. The transfer arm 61 is also rocked vertically about its left pivot for raising and lowering the workpieces, by mechanism 67 driven through linkage 68, Fig. 1 (not shown) from the press. The dies 20, 21, 22 are mounted on a press bed 18, Fig. 9 (not shown), and cooperate with upper dies 23, 24, 25 mounted on the press ram 19 which is actuated through toggle linkage 85, 86, 87, Fig. 3 (not shown), from the press crank-shaft 29 driven through gearing 27, 28 by motor M. Toggle bolster 91 is supported by a fluid pressure device 94 so as to be yieldable during insertion of the workpiece in the dies. Co-operating with dies 20, 21 are hydraulically operated heading tools 81, 82, Fig. 7, controlled by a cam driven by the press crank-shaft. These tools form a preliminary and final upset portion 14, Fig. 6 (not shown), which is shaped by end recesses in the cooperating dies. During the actual heading the tools 81, 82 are held firmly by legs 95, 96, Fig. 9 (not shown), on the ram 19. The trimmed workpiece is transferred from die 22 to an ejection station where the fingers are opened by a stop 78 and the workpiece falls into a discharge shoot 79. An air nozzle 80 removes the trimmings from die 22.
Patent GB-298223-A (GB)
Title: Improvements in or relating to undergarments
IPC: A41B9/08
Filed: 1928-09-06
Abstract: 298,223. Ryff & Co., Ltd. Oct. 6, 1927, [Convention date]. Combination undergarments; undervests. -The invention relates to an undergarment formed with an elastic tubular body on which main and auxiliary strengthening strips are provided and consists in a construction in which the auxiliary strips are approximately parallel to the main strips. As showrn, an undergarment is provided with main strengthening strips 2, 2<a> and has a lower part 8 which is without projecting parts and consists of two layers of material. Auxiliary strengthening strips 5, 6 are arranged as shown. A flap 3 may be provided at the lower part to convert the garment into camiknickers or the like.
Patent GB-835232-A (GB)
Title: Improvements in tubulous vapour generating and vapour heating units and a method of operating such units
Inventor: SCHAAP WILLEM FREDERIK CAREL
IPC: F22B21/34
Filed: 1955-09-07
Abstract: 835,232. Water-tube steam boilers. BABCOCK & WILCOX Ltd., Sept. 4, 1956 [Sept. 7, 1955], No. 25605/55. Classes 123(2) and 123(3) A high-capacity water-tube boiler which may be accommodated in a space affording relatively little headroom for example, a tunnel and which may be brought rapidly from idling to full load without endangering the unit or its associated turbine includes a furnace chamber 1 lined with steam generating tubes extending from lower headers such as 5 to a steam and water drum 9, combustion gases leaving the furnace through an outlet 17 and passing downwardly in an open pass 19 which they leave through an inclined tube screen 25. The gases then enter a horizontally extending gas passage 27 formed by a lining of refractory material within a steel casing and spanned by a secondary superheater 57, the passage thereafter being divided by a wall 37 into parallel passes 39, 41 respectively containing a reheater 43 and a primary superheater 49, economiser sections 59 being disposed downstream in each pass. Gas flow in the passes is controlled by outlet dampers 61 and, beyond the dampers, outlets 63 are provided through which cooled flue gas is withdrawn by fans 67, 69 and supplied through damper-controlled ducts to the bottom of the furnace and to the top and bottom of the open pass pass 19. For improving the operation of the unit when it is fired to give an output of 5 to 6% of its maximum when the turbine is idling, auxiliary gas recirculating means are provided comprising a fan 101 which withdraws gases from the passes 39, 41 downstream of the steam heaters 43, 49 and supplies them to the bottom of the furnace through a damper-controlled duct 109. When operating at full load gases are recirculated to the bottom of the pass 19 to mix with and temper the fresh furnace gas in the zone upstream of the superheater 57. As the load decreases, the recycled gas flow to the bottom of the pass 19 is decreased and that to the top of the pass increased to reduce radiation in the pass and maintain the superheater temperature, the reheat temperature being controlled by adjustment of the dampers 61. In the lower range of loads, gases are recycled to the furnace chamber. At turbine idling load the fan 101 recycles sufficient gas to the furnace to ensure that condensation in the steam heaters does not occur and that the temperatures of the heating surfaces of the unit and the turbine are such that the plant may be rapidly placed under load.
Patent GB-715831-A (GB)
Title: Improvements in and relating to sampling devices
IPC: G01N1/20
Filed: 1951-11-02
Abstract: 715,831. Grain samplers. BRIAN, J. C. Feb. 2, 1953 [Nov. 2, 1951], No. 25617/51. Class 58 A grain and powder sampler comprises a vertically disposed cylindrical container divided into top b and bottom g compartments by a horizontal plate f, an inlet a through which the grain is fed, blades c in the top compartment rotatable with a shaft k mounted coaxially with the container, apertures in the plate f through which some grain passes to the bottom compartment within which is a collector blade h also attached to the shaft k, a slot j in the bottom plate of the container through which the sample passes, and outlets in both the horizontal plate and the bottom plate through which excess grain passes into a discharge spout. The sample passes finally through a spout j'. The slot may be varied in size by a slide.
Patent GB-534668-A (GB)
Title: Improvements relating to electric switches and contacts therefor
IPC: H01H21/16
Filed: 1939-09-12
Abstract: 534,668. Snap-action switches; contacts. STANTON, H. B. Sept. 12, 1939, No. 25635. [Class 38 (v)] Fixed contacts i, j, adapted to be cramped into engagement with the hooked ends of movable blades e on a shaft f, are assembled on a shaft k with spacers o, the arrangement being such that when the blades e come into place, a wedging action is exerted between an adjustable cam s and the shaft k whereby the cramping is effected. The wedging is effected by the end v of an arm u fast on the handle spindle f<2>, a curved link z being connected to the arm u at 18 and to a dead-centre spring 16 to maintain the arm u in its clamping position. Adjacent pairs of contacts i, j are adapted to be connected together by adjacent pairs of blades e which are in a single U-shaped piece, the blades engaging the contacts i being directly in contact with the end contacts 19 of fuses 20. The remote fuse contacts 22 are each arranged to engage between similar contacts 21 on a further shaft 26 which is rotatable by means of a hand lever 28 and is threaded into the box wall so as to be capable of unclamping the contacts 22. A lost-motion device permitting 180 degrees rotation of the handle comprises lugs w, x on the arm u co-operating with a lug y on a freely-rotatable plate z, lugs 10, 11 on the latter co-operating in turn with a lug 12 on shaft f. The shaft f is finally moved by a deadcentre spring link 13, 14, pivoted to the plate z at 15.
Patent GB-157556-A (GB)
Title: Improvements in or relating to signalling arrangements, applicable to telegraph, telephone and like purposes
IPC: H04J1/10
Filed: 1919-10-20
Abstract: 157,556. Automatic Telephone Manufacturing Co., Ltd., and Harrison, H. H. Oct. 20, 1919. Thermionic relays and repeaters.-Relates to a repeating station for use in telegraph, telephone or like signalling systems in which, in addition to the normal low-frequency signalling currents, a number of carrier waves are employed for transmitting messages in both directions simultaneously, the carrier waves for transmitting messages in opposite directions being of different frequency. The carrier waves and the ordinary signalling currents are allotted separate paths at the repeating station, amplifiers being placed in any or all of the paths. In the arrangement shown, modulated carrier waves sent in the direction L<1> - - L<2> are amplified by the amplifier 4, and are transmitted to line L<2>. A rejector circuit 7, inserted in the anode circuit of the receiving amplifier 3 and tuned to the frequency of the carrier waves transmitted in the direction L<1> - - L<2>, prevents these waves from passing back to the line L<1> through the amplifier 3. Similarly, a rejector circuit 5 tuned to the carrier waves sent in the direction L<2> - - L<1> prevents " side tone " in the line L<2>. Ordinary low-frequency speech currents are transmitted from one line to the other through the transformer 8. Rejector circuits 9 and 10 are provided to prevent amplified carrier waves from being passed back over the transformer 8, whilst condensers 11 and 12 avoid short-circuiting of the windings of the transformer 8. An arrangement is described in the Provisional Specification whereby two conversations may be carried on at the same time by modulated carrier waves, two carrier waves coming in from each direction. The incoming lines are cornected to two transformers in series, the primary of the first being shunted by an inductance and capacity tuned to the frequency of one incoming carrier wave, and the primary of the second being shunted by a circuit tuned to the other. The secondaries of the transformers are connected to amplifiers. the output sides of which are connected in series with rejector circuits tuned to impede carrier waves from the other direction.
Patent GB-1075664-A (GB)
Title: Improvements relating to the sifting of fibre flock of textile fibre material
IPC: B05C19/00
Filed: 1964-06-22
Abstract: 1,075,664. Electrostatic separators. VEREINIGTE GLANZSTOFF-FABRIKEN A.G. June 22, 1964 [June 24, 1963], No. 25728/64. Heading B2J. [Also in Division D1] Fibre flock is separated according to length by use of an electrostatic field between two opposing condenser plates and a Faraday cage in the form of a screen belt 13. As shown, the lower condenser plate comprises a rotatable drum electrode 8 and carries the screen belt 13 spaced from it a distance equal to the length of fibre to be sorted out. The upper condenser plate comprises a screen electrode 18 disposed at the base of a flocking box 6 which is fed with material through an electrically-charged vibratory screen 4. Since the cavities in the belt 13 fulfil the conditions of a Faraday cage, only the fibres which project beyond the surface of the belt jump back into the field; the other fibres lose their charge and remain on the drum until removed by a stripper disposed above a discharging device 14. The overlength fibres move backwards and forwards and in a lateral direction until they enter through a screen 19 for removal by a suction device attached to the chamber 7 of the box; lateral movement is effected by either converging the condenser plates or providing a third condenser plate. Various sizes of flock may be separated out by arranging for a series of separating stages.
Patent GB-300360-A (GB)
Title: Improved process for the cleavage of oils and fats
IPC: C11C1/04
Filed: 1927-09-29
Abstract: 300,360. Imperial Chemical Industries, Ltd., and Chapman, E. Sept. 29, 1927. Splitting fats and fatty oils.-Fats and oils are split by the sulphonic acids or their salts obtained as described in Specification 274,611 by the condensation of an alcohol with sulphonated mineral oil fractions. The acids are preferably first washed with dilute sulphuric acid whereby their splitting power and the colour of the split fatty acids are improved. In an example 126 lb. of Roumanian white spirit, B.P. 110-230‹ C., are stirred into 135 lb. of 100 per cent sulphuric acid, and maintained at 60-65‹ C. for 2 hrs. After cooling, settling, and separating unsulphonated oil, 60 lb. of 95 per cent sulphuric acid are added, and then 36 lb. of isopropyl alcohol are gradually stirred in. The mixture is kept at 60-65‹ C. for 3 hrs., cooled and allowed to settle. The lower layer of sulphuric acid it run off, the upper viscid layer stirred with sulphuric acid of 25 per cent strength, and allowed to settle out. 4 lb. of this reagent are mixed with 300 lb. of tallow, 120 lb. of water, and 2 lb. pure oil of vitriol, and the mixture boiled for at least 6 hours.
Patent GB-1346645-A (GB)
Title: Emulsions
IPC: A23L9/20
Filed: 1971-04-19
Abstract: 1346645 Emulsifiers; preparing emulsions UMLEVER Ltd 19 April 1973 [1 April 1970] 25823/71 Headings B1C and B1V [Also in Divisions A2 and C5] An emulsion is prepared by injecting a first liquid into a stream of a second liquid, with a pressure difference between the liquids of at least 100 atmospheres (preferably 100-400 atmospheres). The pressure of the second liquid is 0.3 atmospheres above ambient pressure (preferably 1.5 atmospheres). The first liquid may be injected in the direction of flow of the second liquid, or inclined or counter to it, and is preferably injected as a cone. The second liquid is preferably in a pipe, for example circular or elliptical of such diameter that the cone does not touch the walls of the pipe. The length of the pipe downstream of the injection point is at least 20 times the diameter of the cone, preferably 20 times the diameter of the pipe. A number of injection points may be arranged in series or in parallel. Where the injection points are in series, doublewalled tubular coolers may be arranged between the injection points. The two liquids may be fatty and aqueous liquid, for example, an edible oil or fat and skim milk. The invention may be used to produce filled milk or reconstituted milk (e.g. from powdered skim milk and powdered butter fat), cream, cheese or yoghurt, in which case the skim milk is injected into the fat (see Division A2), or margarine, in which case the fat is injected into the skim milk (see Division C5). A 19% paraffin-methanol emulsion may be prepared by injecting paraffin into methanol which contains 1.25% nonionic emulsifier.
Patent GB-809043-A (GB)
Title: New dyestuffs of the anthraquinone series
Inventor: BELSHAW PHILIP LEIGH
IPC: C09B1/22
Filed: 1956-08-24
Abstract: 5 - Nitro - 1 - aminoanthraquinone - 2 - carbonyl chloride is made by reacting 5-nitro-1-aminoanthraquinone-2-carboxylic acid with thionyl chloride in nitrobenzene at 85 DEG  C., cooling the mixture and filtering off the product.  Specification 267,164, [Class 2 (3)], is referred to.ALSO:The invention comprises red dyes of the formula <FORM:0809043/IV (c)/1> where n is 1, 2 or 3 and R is hydrogen or alkyl, and a process for making them either by heating 5-nitro-1-aminoanthraquinone-2-carboxylic acid with an alcohol of the formula H(OCH2CH2)nOR or by treating the corresponding acid chloride with such an alcohol.  Excess alcohol may be present, and sulphuric acid or hydrogen chloride may be used to catalyse the reaction between the acid and alcohol. Alcohols which may be used are 1 : 2-di-(b -hydroxyethoxy)-ethane, B : B1 - dihydroxydiethylether, diethyleneglycol monoethylether, ethylene glycol, ethyleneglycol monobutylether and diethyleneglycol monomethyl ether.  Examples are given.  The dyestuffs may be used for dyeing acetate rayon and polyethylene terephthalate, and may be dispersed by milling with sodium methylene bis-(naphthalene-2-sulphonate) to form an aqueous paste, which may be dried, if desired, to form a re-dispersible powder.  Specification 267,164, [Class 2 (3)], is referred to.