baber/WOPTO huggingface dataset:
Patent GB-1163156-A (GB)
Title: Improvements in or relating to Paraboloidal Antennae with Counter-Reflectors.
IPC: H01Q19/19
Filed: 1967-07-31
Abstract: 1,163,156. Aerials. ELTRO G.m.b.H. & CO. GESELLSCHAFT FUR STRAHLUNGSTECHNIK. 31 July, 1967 [5 Aug., 1966], No. 35101/67. Heading H4A. A Cassegrain type aerial comprises a main paraboloidal reflector HR, a sub-reflector GR, an open-ended waveguide feed H, and a coaxially mounted dielectric body L which is positioned between the feed and the subreflector adjacent the former and spaced from the latter. The body L may be a spherical lens, and may be constructed as a Luneberg type lens, having several shells with differing dielectric constants. The feed H may be extended into a horn, and it may be filled with dielectric material. The said material may have the same dielectric constant as that of the outer shell of the body L, and may be extended to be in contact with it, in order to prevent reflections in a gap.
Patent GB-1211996-A (GB)
Title: Spraying of liquids
IPC: B05B1/26
Filed: 1969-07-11
Abstract: 1,211,996. Spray-producers. J. R. GEIGY A.G. 11 July, 1969 [12 July, 1968], No. 35124/ 69. Heading B2F. In an apparatus for the mechanical formation of aerosols, a film of liquid flowing down the outside of a widening mouthpiece 1, Fig. 2, of ring-shaped, elliptical or "race track" cross-section, is atomized by air escaping under slight excess pressure e.g. about 0.4 atm, from a mantle formed within the mouthpiece by a vertically adjustable limiting body 6. The aperture angles of the mouthpiece and limiting body may differ e.g. 90 and 120-140 respectively (Fig. 5, not shown). The liquid may be distributed through orifices 12 in a ring shaped distributing pipe 11 and the threads of liquid combined into a single film by the teeth 14 of a crown-like ridge 13. Alternatively, the liquid may flow from a single continuous aperture 12a, Fig. 3, from under an annular collecting chamber 20. The size of the aperture is regulated by vertical adjustment of the wall 23 of the chamber with the aid of screws 24. The apparatus may be employed for regulating the moisture in air conditioned rooms or for finely dispersing a liquid in a chemical reaction chamber. In agricultural applications, six such spraying devices together with the ancillary equipment can be mounted on a tractor. By the provision of two separate semicircular distributing pipes 11 Fig. 2, and two separating strips (not shown) two liquids chemically reactive with each other can be kept apart until they reach the spray cone forming below the device.
Patent GB-283112-A (GB)
Title: Improvements in process for the manufacture of acetal
IPC: C07C41/56
Filed: 1927-12-29
Abstract: 283,112. Soc. Anon. des Distilleries des Deux-SÞvrÚs. Jan. 3, 1927, [Convention date]. Acetal.-In the production of acetal by treating alcohol and acetaldehyde with a catalyst such as hydrochloric, sulphuric, toluene-sulphonic, or acetic acid, hydrogen phosphide, calcium chloride or certain metallic salts, the reaction mixture is treated to remove first the acetaldehyde with part of the alcohol, then the alcohol and water by means of an insoluble liquid forming an azeotropic mixture, leaving the acetal behind, and the aceotropic mixture is then treated to recover the auxiliary liquid and the alcohol. The process is described with the use of an acid catalyst (hydrochloric acid), and when the reaction is finished the acid is neutralized by sodium bicarbonate until a slight alkalinity is shown by bromo-thymol blue prior to distillation. In an example, 45 grs. of gaseous hydrochloric acid (used as a solution of 22‹ B.) is employed with 92 kilos of alcohol and 46 kilos of acetaldehyde. The reagents are placed in a reaction vessel having a cooling-coil 2, and the neutralized product is discharged to, a vessel 3, from which it is fed continuously to a still 4, which is arranged so that the free acetaldehyde, possibly with some alcohol, is distilled over and caught in a condenser 6 from which part is returned to the still 4 by a pipe 7 and the rest is collected in a tank 8 for use again. At the bottom of the still 4 the acetal collects with some alcohol, and the sodium chloride separates and is removed at 11. The liquor from the bottom of the still 4 is vaporized and taken by a pipe 9 to a still 10 which contains some benzene distributed over its upper part. An azeotropic mixture of benzene, alcohol, and water escapes to a condenser 12, from which a part is returned to the still 10 and the rest goes by a pipe 14 to a washing-column 15, to which water is supplied by a pipe 18. The acetal collects in the lower part of the still 10 and is withdrawn by a pipe 16 to a cooler 17. The benzene separates in the column 15 and returns to the still 10 by a pipe 19, and the diluted alcohol passes from the bottom of the column 15 by a pipe 20 to a still 21. from which concentrated alcohol is delivered by a pipe 22 to a tank 23, the residual water being discharged by a pipe 24. The Specification as open to inspection under Sect. 91 (3) (a) states that the condensation is effected with from one-fifth to one-tenth of the quantity of catalyst employed in the known processes. This subject-matter does not appear in the Specification as accepted.
Patent GB-847280-A (GB)
Title: Improvements in artificial respiration apparatus
IPC: A61M16/00
Filed: 1957-11-12
Abstract: 847,280. Artificial respiration apparatus. ROSENSTIEL, R. A., PESTY, R., and ETABLISSEMENTS RICHARD S. A., J. Nov. 12, 1957 [Nov. 24, 1956], No. 35287/57. Class 81(2). Artificial respiration apparatus comprises means alternately operable to connect a source of gas under pressure to the lungs to induce inspiration and to cause the source of gas to act on a mechanism to induce expiration and means for connecting the lungs to atmosphere, for a free expiration period between induced inspiration and expiration. The apparatus comprises outer and inner concentric bellows E,I having common end plates P1, P2, the inner bellows I being connected to the patient's lungs via an inspiration valve S2 and a duct K2 and the outer bellows being connected to the lungs via a duct K1 and an expiration valve S1. Respiratory gas under pressure is supplied continuously to the inner bellows through a flow meter FM and a duct I. When the bellows is most contracted after an induced inspiration the inspiration valve is closed and both bellows are expanded against a spring TS by gas entering the inner bellows. The expiration valve S1 is open and for a short period of free expiration gas flows from the lungs through the outer bellows and to atmosphere through a normally open valve S4. When the bellows have expanded a desired amount the valve S4 is closed by a vertically adjustable valve head whereupon with continued expansion the pressure in the outer bellows falls and expiration is induced. As the bellows expand a toggle mechanism TM, carried by the top end plate PI, rises and on striking an upper abutment 21, a push rod B, which is connected to the inspiration valve, changes over the toggle mechanism to open the inspiration valve S2, and through a lever L, to close the expiration valve S1. Forced expiration then ceases and inspiration is induced by the passage of gas under pressure to the lungs from the inner bellows. Both bellows then collapse under the action of the spring until the push rod strikes a lower abutment 22 to cause the valves S1 and S2 to change over. During collapse of the bellows, gas escapes from the outer bellows through a normally closed valve S3 and, towards the end of the inspiratory period, through the valve S4.
Patent GB-301226-A (GB)
Title: Process for the preparation of fibres or cellulose from gramin-aceous or other plants of high siliceous content
IPC: D01C1/04
Filed: 1927-12-30
Abstract: 301,226. Gennaro, J., and Rossi, G. Dec. 30, 1927. Retting.-In the preparation of fibres or cellulose from graminaceous or other plants of high siliceous content, such as the straw of wheat, oats, rye, &c., or the leaves of stipa tenacissima, the materials, either whole or comminuted, are treated at a temperature up to 40‹ C. with a chemical reagent, such as caustic soda at a concentration of 3-4 per cent to dissolve or remove the silica. They are then washed until the reagent is removed, and then subjected to retting by a micro-biological or enzymic process such as Rossi's process using aerobic ferments in a current of gas. The material may finally be seasoned by allowing it to stand for the required period. The chemical reagent may be neutralized instead of being washed out of the material.
Patent GB-361620-A (GB)
Title: Improvements in or relating to apparatus for cutting sheets of paper, wood and the like
IPC: B26F1/38
Filed: 1930-11-24
Abstract: 361,620. Cutting fabrics. MIERITZ, J., 35, Luisenufer, Berlin. Nov. 24, 1930, No. 35397. [Class 31 (ii).] Cutting appliances.-An appliance for cutting fabrics has a knife 11 reciprocated through an eccentric from an electromotor 4, mounted adjustably in guides 1 on a transparent plate 15 resting upon the work. The knife 11 operates through an aperture in the plate 15. To lessen vibration, the motor casing rotates about a stationary armature connected to the frame and carries the eccentrics driving the knife. In a modification, Fig. 8, the knife guide 26a and motor are carried on a lever 29 hinged at 31 to a baseplate 30.
Patent GB-464876-A (GB)
Title: Improvements in or relating to apparatus for playing games
IPC: A63F3/06
Filed: 1935-12-23
Abstract: 464,876. Games of chance. GARNETT, C. A. Dec. 23, 1935, No. 35493. [Class 132 (ii)] A punch board has a large number of perforations closed at either end by sheets of paper or like material, the lower sheet 5 having distinctive markings 6 which become visible when the upper sheet is pierced above the winning holes. The upper sheet may be marked to indicate the location of each hole and may also bear a card or the like giving on a different scale an indication of the position of the winning holes.
Patent GB-1001623-A (GB)
Title: Method of producing ª-keto-nitriles from ª,ª-unsaturated ketones
IPC: C08L59/02
Filed: 1962-09-18
Abstract: g -Ketonitriles are made by contacting a mixture of a ,b -unsaturated ketone and hydrocyanic acid, advantageously diluted with an inert gas, with an alkaline catalyst supported on a solid carrier at 50 DEG to 350 DEG  C., the amount of HCN used not exceeding substantially 10% by weight of the total mixture introduced. Any known alkaline substance may be used as catalyst, the alkali metal, especially potassium, hydroxides or cyanides are preferred.  Specified starting materials include isophorone, mesityl oxide, 2-methyl cyclopentanylmethyl ketone, 2-ethyl cyclohexenyl benzyl ketone and 2-butyl cyclohexenylphenyl ketone. The examples refer to the conversion of isophorone and mesityl oxide, employing clay shard and g -alumina pellet supported sodium hydroxide)cyanide catalysts and nitrogen as diluent.
Patent GB-449231-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F01L7/02
Filed: 1935-12-23
Abstract: 449,231. Refrigerators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 23, 1935, No. 35591. Convention date, Dec. 27, 1934. [Class 29] [See also Group X] Heat - insulating strips 17, 22, com posed partly of rub ber or a condensa tion product, are secured betweer flanges 38, 39 anc 25, 28 respectively of outer and inner spaced sheet meta walls 15, 16 and 19 20 of a refrigerator and its door by resilient clamping means, whereby the use of screws is avoided. Yoke members 30 are engaged in loops 31 formed in the flanges and are held in place by coiled springs 29. The sheet metal walls are assembled with the usual heat insulation between them, and are sprung apart to enable the strips 17, 22 to be inserted. These strips have dovetailed middle portions 42 to provide engaging grooves. A rubber gasket 23 is also secured in the door by engagement between the strip 22 and the flange 25. At the corners of the door and frame the strips are cut away to accommodate metal angle pieces. The outer door plate is braced by crossed diagonal bars of channel section bolted together at the centre.
Patent GB-1472643-A (GB)
Title: Mowing machines
IPC: A01D34/66
Filed: 1974-04-25
Abstract: 1472643 Mowers C VAN DER LELY NV25 April 1974 [27 April 1973] 35632/76 Divided out of 1472641 Heading A1F  The subject matter is contained within the parent Specification 1472641 but the claims are directed to the detachable, freely rotatable guide dish 99, provided on each of the mowing elements 4-7. The dish 99, due to the  air-stream and friction, rotates in the same  direction B, C, D or E as the respective mowing element 4-7, so that the cut crop, impelled upwardly by the inclined blades 94, is conducted rearwardly.
Patent GB-1278367-A (GB)
Title: Ceramic-to-metal conductive glass sealing compositions
Inventor: KESTEN PATRICK NORMAN
IPC: H01T13/34
Filed: 1970-07-23
Abstract: 1278367 Glass-metal compositions GENERAL MOTORS CORP 23 July 1970 [1 Aug 1969] 35717/70 Heading C1M A glass-metal composition for sealing ceramic to metal, as in a spark plug, and which is electrically conductive, consists essentially of, in percentages by weight, iron at least 50; copper together with aluminium 4-6, there being not less than 3 of aluminium and 1 of copper; and not less than 30 glass. A small amount of carbon may be introduced to prevent oxidation of the metals during heat sealing and 0À7-3 of a glass flux such as Li 2 CO 3 , PbO or BaO may be added.
Patent GB-1152233-A (GB)
Title: Process for the Purification of Adipic Acid
Inventor: BURLEIGH DERECK JAMES SUTHERLA
IPC: C07C51/44
Filed: 1965-08-20
Abstract: 1,152,233. Adipic acid. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 July, 1966 [20 Aug., 1965], No. 35782/65. Heading C2C. Adipic acid prepared by the oxidation of cyclohexane is purified by contacting the aqueous solution with steam at an elevated pressure to strip monobasic acids from the adipic acid which is recovered by crystallization. The adipic acid solution may be at boiling-point under pressure, or high pressure steam may be introduced to the solution.
Patent GB-447506-A (GB)
Title: Improvements in and relating to rectifiers
IPC: H02M7/15
Filed: 1934-12-13
Abstract: 447,506. Converting. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Dec. 13, 1934, No. 35792. Convention date, Dec. 30, 1933. [Class 38 (ii)] In a polyphase rectifier in which the anodes 11 ... 16 associated with individual phase windings are equipped with grids 4 capable of extinguishing the arc while the anodes are under positive voltage, a star point anode 18 is provided for conducting current during the period following interruption of current in one main anode and while current is building up in the next. Where a divided secondary is used in conjunction with an interphase transformer 7, Fig. 2, star point anodes 18a, 18b are provided for each star point. Specifications 409,331 and 430,915, [both in Group XL], are referred to. The Specification as open to inspection under Sect. 91 states that the invention may be applied to inverters. This subject-matter does not appear in the Specification as accepted.
Patent GB-1271679-A (GB)
Title: Quartz crystals for piezoelectric devices
Inventor: ROYER JAMES JEROME
IPC: H03H9/19
Filed: 1969-07-16
Abstract: 1,271,679. Piezoelectric resonators. WESTERN ELECTRIC CO. Inc. 16 July, 1969 [23 July, 1968], No. 35820/69. Heading H1E. A quartz crystal resonator for the range 800 to 2200 KHz consists of a plate 10 having a (yzw) orientation of - 51 degrees/0 degrees/0 degrees (a DT cut) and a length to width ratio in the range 23 to 29, the plate being provided at both ends with similar, asymmetrical tapers of angle α = 1 to 5 degrees by cutting away a substantial portion of one edge. The taper enables the length of the plate to be reduced. The length l 1  is preferably 40 to 50% of the length l, and an appreciable portion of the length l 1  is covered by electrodes 11. The width w of the plate lies between 0À0825 and 0À030 inch. The thickness t is less than 0À030 inch. It is stated that suppression of unwanted resonances is obtained.
Patent GB-726651-A (GB)
Title: Method of and apparatus for drying tubing
Inventor: WAKEFIELD SIDNEY JOHN
IPC: F26B21/00
Filed: 1953-12-24
Abstract: 726,651. Dielectric heating. VISKING CORPORATION. Dec. 24, 1953, No. 35885/53. Class 39 (3). [Also in Group XIII]. In the drying of regenerated cellulose tubing, [Croup XIII], the tubing 2 is passed in an inflated state through a series of spaced, axially aligned ring electrodes 124 of which adjacent electrodes are connected to leads 126, 128 of opposite polarity, from a ratio frequency oscillator 130. Each electrode has a pair of circular end members 140 with inwardly extending flanges supporting a cylindrical conductive mesh forming a member 144, of which the ends of the mesh are brought into contact to provide an arm 146 which is secured to a post 160 of insulating material by a screw 156, the end members 140 having rounded peripheral edges 150 to prevent sparking. It is stated that a frequency of 25 to 80 megacycles per second and a power of 2 to 5 kilowatts is satisfactory, the preferred frequency being 27 megacycles per second at a power of 2 kilowatts.
Patent GB-812583-A (GB)
Title: Improvements in or relating to exothermic mixtures and the use thereof
Inventor: CORNES LESLIE GEORGE
IPC: C22B5/06
Filed: 1956-11-23
Abstract: An exothermic composition formed into a hard water-resistant shape, contains finely divided aluminium, a preferably stoichiometric deficit of an oxidizing agent for the aluminium, a refractory filler and a binding material consisting of a water-insoluble, infusible polymeric substance such as phenolformaldehyde resin, a hardened drying oil such as linseed oil, or an alkyd resin.  In one example, to a mixture of aluminium powder, iron oxide, potassium aluminium fluoride and a refractory filler containing 0.15 to 0.3 per cent by weight of sodium perborate, was added 3.5 per cent by weight of boiled linseed oil and the composition was shaped.  After standing, the mixture hardened without recourse to stoving; for greater strength the shape could be stoved at 200 DEG C. for 2 hours. Specification 627,678 is referred to.
Patent GB-389056-A (GB)
Title: Improvements relating to single-phase induction motors
IPC: H02P1/44
Filed: 1932-04-27
Abstract: 389,056. Alternating-current induction motors. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, ROBERTS, L. and BALL, R. D., Phoenix Works, Bradford, Yorkshire. April 27, 1932, No. 35930. Divided on 386,503. [Class 35.] A split-phase induction motor utilizing both primary windings for starting and running is started with an impedance comprising external capacity in series with the running winding, and when the motor has run up to speed the impedance in the circuit of the starting winding is increased. In the diagram the main running winding is shown at 1 and the auxiliary starting winding at 2. With the switch 5 in the upper position for starting, contacts 6 .. 10 are closed so that the winding 2 is connected directly across the mains A, B, and the winding 1 is connected across the mains in series with parallel-connected condensers 3, 4. With the switch 5 in the lower position for normal running, contacts 6 .. 10 are open and contacts 11 .. 14 closed so that the capacity is transfeered to the circuit of winding 2, the condensers 3, 4 however being series-connected. In order to maintain the same direction of rotation of the field, the switchgear reverses the connections of the winding 1. Two or more condensers in series or in parallel may replace each of the condensers 3, 4 or the two plates at the same potential may be combined to form the intermediate plate of a three-plate condenser.
Patent GB-464454-A (GB)
Title: An improved method and means for mixing paints, distempers and other liquid preparatins
IPC: B01F29/62
Filed: 1935-12-30
Abstract: 464,454. Mixing-apparatus. PEARSON, Ltd., W., and PEARSON, W. E. Dec. 30, 1935, No. 35981. [Class 86] A mixing-apparatus for paints comprises an elongated double conical vessel a with openings e, g of different sizes at its ends carried by trunnions c mounted in the forked uprights h, i, of a portable stand having a folding part j on which the operator can stand.
Patent GB-939630-A (GB)
Title: A delivery unit for a coffee machine
IPC: A47J31/46
Filed: 1961-10-10
Abstract: 939,630. Coffee making machines. E. VALENTE. Oct. 10, 1961 [April 6, 1961; June 13, 1961], No. 36276/61. Class 129. [Also in Group XXVI] In a coffee making machine a pump 13 delivers hot water through a duct 5 to a spray head 2 which sprays the water through coffee in a filter 3, the pump being switched on or off by opening or closing a stop cock 26 in the duct 5. A valve in the outlet pipe 17 from the pump connects the outlet pipe to the inlet pipe 11 when a predetermined pressure is exceeded; alternatively both the inlet and outlet pipes may be connected to a two-way, by-pass balancing valve (Fig. 6, not shown), through a non-return valve in the case of the outlet pipe, which renders the outlet pipe water pressure independent of the actual water supply pressure in the inlet pipe. A boiler may be interposed between the pump 13 and stop-cock 26 and the pump connected to a cold water supply. A silent operating electric motor-driven rotary vane pump is described.
Patent GB-1435246-A (GB)
Title: Explosive-powered fastener-driving tool
IPC: B25C1/18
Filed: 1974-08-19
Abstract: 1435246 Fastener driving tool HILTI AG 19 Aug 1974 [27 Sept 1973] 36340/74 Heading B4C  An explosively driven fastener mating tool comprises a barrel 2 spring urged outwardly and which has to be pressed in by the surface into which the fastener is to be inserted and sensing members 9 pivotable about axes 8 which allow complete retraction of the barrel and hence firing only if they are all pivoted so that their respective ends 10 do not abut a projection 11 on the barrel. All the sensing members are urged into the position shown by a spring 12.
Patent GB-1161423-A (GB)
Title: Improvements in and relating to Composite Materials and their Method of Production
IPC: B29C65/00
Filed: 1966-08-15
Abstract: 1,161,423. Laminates. CARTONNERIES MODERNES ANCIENS ETS. ACHER, OMONT & DUBOSC and M. MIGEOT. 15 Aug., 1966 [17 Aug., 1965], No. 36391/66. Heading B5N. [Also in Divisions B8 and F2] A method of producing blanks of composite material for the manufacture of containers or tubes having sealed joints, comprises chamfering at least one edge 4 of a bearing sheet 2, e.g. of thin cardboard, applying to one side and the edge a sealing layer 5, e.g. of a polyethylene film or foil, and cutting the blanks from the material so as to leave intact the chamfered edge. The edge may be protected by a foil 5 as shown in Fig. 1 by extending the foil at 7 and folding it under the chamfered edge 4. A sealed joint is formed as shown in Fig. 2. In alternative methods, the foil maybe applied to both sides of the sheet 2 and the extensions 7 joined together, or the foil may be applied to a single side and the extension 7 left as in Fig. 1b In this event the sealed joint is formed as shown in Fig. 7. In further embodiments, the chamfered edge of the sheet 2 may be protected by a sealing layer which is separate from that applied to one or both sides of the sheet 2 and which is folded around the chamfered edge only. The sealing layer may alternatively consist of aluminium, or synthetic resin applied as a solution and the bearing sheet may alternatively be of paper, fabric or metal.