baber/WOPTO huggingface dataset:
Patent GB-314502-A (GB)
Title: An apparatus for grinding, surfacing and polishing the curved surfaces of parabolic lenses and the like
IPC: B24B13/04
Filed: 1929-06-28
Abstract: 314,502. Pass, A. June 28, 1928, [Convention date]. Curve - describing instruments. - Apparatus for grinding &c. parabolic lenses, &c. comprises a table to which is secured a rod, representing a dividing line between a pair of rods representing the angle of incidence and the angle of reflection of the lens, on which table, for short focus lenses, is mounted a rotary grinding-disc to operate on a lens rotatably mounted in a fixed position, or on which table, for long focus lenses, the lens is rotatably mounted to be operated on by a grinding- disc rotating on a fixed axis, the rods also being coupled by links causing the table to move in a parabolic path. The apparatus comprises a base 4 having thereon a slide 3 movable in guides 21 by a screw 23, and slidable on the plate 3, in guides at right-angles to the guides 21, is a plate 2 having pivoted thereon at 12 a table 1 carrying a dividing rod 5. An incidence rod 6 is secured to the plate 3, and a reflection rod 7, spaced at the same distance from the rod 5 as the rod 6, is secured to a part 8 pivoted on an adjustable part 26; the rods are parallel when the parts are in a central position. On the rods are elements 28, 29, 31, 32, the element 28 being secured to the rod 5 and the other elements being slidable on their respective rods; the elements are connected together by equal links 9. On the table 1 is a grooved wheel 11 around which pass a band 13 connected to the ends of the rods 6, 7 and a band 14 connected to the same rods 15, 16 and the rod 7 is held up to the wheel by a spring 17. Above the wheel 11, on pillars 33 on the table 1, is a plate 34 on which is slidable a plate 36, movable by a screw 36‹ and having slidable thereon, at right-angles to the movement of the plate 36, a plate 38 carrying, in a support 41, a grinding-wheel 43 driven, from a pulley 44, by a motor mounted on the apparatus or by overhead shafting. The support 41 is adjustable angularly on the plate 38. The lens 59 is mounted on a plate 58 carried by a shaft 57 in a support 56 slidable by a screw 55 on a framework 49 which may be adjustable on the base 4; the shaft 57 may be driven by a motor or by an overhead shaft. In operation, the plate 3 is moved on its slide, the linkwork causing the grinding-disc to move. in a parabolic path. When grinding large lenses, the lens support 56 is mounted on the table 1, and the plate 38 and associated parts are arranged on an extension of the base 4.
Patent GB-1089052-A (GB)
Title: Fluid flow apparatus
IPC: D21F1/02
Filed: 1965-05-11
Abstract: A flow spreader, of the type in which a plurality of pipes arranged in a plane feed the paper stock into one end of a wide, thin conduit disposed in a plane substantially perpendicular to the plane of the pipes, the stock flowing through the conduit onto the Fourdrinier wire, has the ratio of the flow area of the conduit between centre lines of adjacent pipes to the flow area of each of the pipes between 1.1 and 1.7 and preferably 1.5.  The pipes which are preferably of circular cross-section may be disposed above or below the conduit, and are connected to a tapered, stock-supply pipe.  The flow spreader may be incorporated into an exerting headbox.
Patent GB-1521426-A (GB)
Title: Process for the continuous manufacture of polymers and copolymers of vinyl chloride
IPC: C08F2/26
Filed: 1976-05-14
Abstract: Homopolymers and copolymers of vinyl chloride containing at least 85 % by weight of polymerised vinly chloride units are prepared continuously in aqueous emulsion. The polymerisation is carried out in the presence of water-soluble catalysts which form free radicals, polymerisation auxiliaries and 1.5 to 3 % by weight of an emulsifier mixture. The emulsifier mixture comprises a) alkali metal and/or ammonium salts of sulphosuccinic diesters and b) alkali metal and/or ammonium salts of alkylsulphonic acids and/or of alkylarylsulphonic acids of the type and composition defined in Claim 1. The dried polymers obtained are particularly suitable for the preparation of plastisols.
Patent GB-1303584-A (GB)
IPC: C07D209/48
Filed: 1971-04-19
Abstract: 1303584 Phthalimides INSTITUT FRANCAIS DU PETROLE DE CARBURANTS ET LUBRIFIANTS and ENTERPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES-ELF 19 April 1971 [21 Jan 1970] 20036/71 Headings C2C and C2P [Also in Division C5] Novel compounds of the general Formula I where the hydrocarbon ring is a cyclohexanic, aromatic, dihydroaromatic or tetrahydroaromatic ring, each of R 1 ,R 2 ,R 2 and R 4 (which may be similar or dis-similar) is a hydrogen atom or an aliphatic radical, with the proviso that R 1 and R 4 together may represent a divalent C 1-2 radical and that the total number of carbon atoms in R 1 to R 4 is 0-30, n is 2-10, m is 1-10 and R is a univalent aliphatic C 1-30  hydrocarbon radical, are made by reacting a linear amine of formula with an equimolecular amount of an ester-acid or anhydride respectively of formula wherein R 5 is a univalent aliphatic HC radical or an optionally substituted phenyl radical, and removing the water formed during the reaction; the reaction may be carried out in an inert solvent consisting of at least one aromatic hydrocarbon that forms an azeotrope with water, and the water formed during the reaction may thus be removed by azeotropic entrainment. Salts of the compounds of Formula I may be obtained by reaction with a mono- or di-alkyl phosphoric acid of formula R<SP>1</SP>-P(O)-(OH) 2  or (R<SP>1</SP>O) 2 P(O)-OH where R<SP>1</SP>is a univalent saturated aliphatic HC radical and is used in such amount that the number of OH groups does not exceed the number of amine groups. The compounds I and salts thereof are useful as fuel additives (Division C5).
Patent GB-265130-A (GB)
Title: Adjustable grid for machines for opening, cleaning, beating, carding or parallelising cotton, waste, and fibres of all kinds
IPC: D01G9/22
Filed: 1926-08-13
Abstract: 265,130. Wehli, M. Jan. 28, 1926, [Convention date]. Carding-engines; openers, &c.-In a machine for cleaning, beating, carding, &c. fibres the grid bars are adjustable relatively to one another and to the striker, beater, scutcher, or like member of the machine. The bars A are secured at their ends by soldering, or otherwise to members D, which are slotted as at E and are secured to end plates H having curved slots G therein by bolts F or the like which pass through the slots E, G. Each bar A is provided at its upper edge with a flange B and below the flange with a recess C to facilitate the passage of impurities through the grid. Specification 265,128 is referred to.
Patent GB-153684-A (GB)
Title: Air pressure balancing device for aeroplanes
IPC: B64C1/00
Filed: 1919-08-15
Abstract: 153,684. Erede, G. Aug. 15, 1919. Propelling. - Lateral and longitudinal balancing of aeroplanes is effected by centrifugal blowers driven by the main or an auxiliary engine through clutches under the control of the pilot. Two fans 1, Fig. 1, are driven by a shaft 2 in opposite directions for restoring lateral balance when clutched in by the pilot. The shaft 2 may be rotated in either direction by the pilot sliding a keyed double cone 10 into engagement with one of the cones 11 on wheels 9 which are free on the shaft and are driven by a wheel 8. The wheel 8 is driven by gearing, Fig. 5, from the shaft 23 of the engine. A similar arrangement of fans on the longitudinal axis is used for restoring longitudinal balance. The speed of the bevel-wheels 9 is 6000 revolutions per minute, and the clutch mechanism is therefore enclosed in an oil-tight box.
Patent GB-1108415-A (GB)
Title: Echo suppression in long distance telephone circuits
Inventor: MOYE LAURENCE STANLEY
IPC: H04B3/23
Filed: 1966-05-06
Abstract: 1,108,415. Echo suppressors. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 6 May, 1966, No. 20132/66. Heading H4R. In a 2-way long distance transmission system, reference signals, such as random noise, are injected into the forward channel and are monitored on their return to determine the echo characteristics of the system, and a dummy echo is applied to the return channel to cancel the real echo. As shown in Fig. 1, random noise from a source 4 applied to the forward channel goes also to a delay line 7, from which the tappings are taken to multipliers 8 receiving the echo from the return channel. Integrators 9 give the mean square product of the pulse amplitudes and the relevant delay response. An adaptive filter comprises multipliers 11 which receive the outputs from the integrators 9 and also delayed versions of the transmitted signals from a delay line 10, and an adder 12 fed by these multipliers produces a dummy echo which is injected in interse form into the return channel to cancel the actual echo. A burst of monitor noise may be sent merely at the beginning of each new call to avoid interference with the speech signals. In another embodiment, Figs. 4, 5 (not shown), the actual speech signals are used to determine the echo characteristics, the arrangement being generally similar.
Patent GB-491840-A (GB)
Title: Improvements in or relating to the production of resilient material for stuffing upholstery, mattresses and the like
IPC: D04H1/68
Filed: 1936-12-08
Abstract: A bulky reticulated fibrous mass or structure reinforced with rubber or the like is made by causing a fluid bearing rubber or the like to extend itself as a foam through the interstices of a fibrous mass, collapsing the foam, and setting it.  The rubber or like may be subsequently vulcanized.  The fibrous mass may be fibres of horsehair, cellulose, asbestos, coconut fibre &c. bonded or locked together by an adhesive before being permeated by the foam, or may be woven or knitted fabric, felt, &c.  Rubber-like materials specified are "Duprene" (Registered Trade Mark) and thiokol which is a reaction product of sodium tetrasulphide and ethylene dichloride. Specifications 341,936 and 455,138 are referred to.
Patent GB-459866-A (GB)
Title: Improvements in or relating to splitting, skiving or like machines
IPC: A43D8/34
Filed: 1935-07-16
Abstract: 459,866. Splitting-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., CLARKE, T. B., and BOOTHROYD, H., Union Works, Belgrave Road, Leicester. July 16, 1935, No. 20235. [Class 31 (i)] In a splitting-machine in which a workpiece is fed to a fixed splitting knife by upper and lower feed rolls, movements of the lower spring-pressed roll due to variations in hardness of the workpiece impart compensating movements to the upper roll whereby the thickness of the upper split is maintained constant. The upper roll 11 is mounted in bearings 47 having inclined upper faces 10 which are held by light springs 12 against corresponding faces on an adjusting bar 7 which is moved laterally by a hand-wheel 49 operating a screw and nut device 45, 51. Above the bar 7 are two blocks 13 movable vertically, a double-wedge bar 9 movable laterally, and two fixed wedge blocks 19 adjustable vertically by screws 25 ; anti-friction rolls 15, 21 are supported in cages 17, 23 between the wedge surfaces. The bar 9 has pivoted to it a pendant arm 29 which passes between projections 36 on controlling levers 33 pivoted to the machine frame at 31 and coupled together by teeth 71. The lower ends of the levers 33 have wedge surfaces 37 which co-operate with projections 39 on the bearings 41 of the lower feed roll 43. Any upward movement of the lower roll thus produces a proportionate downward movement of the upper roll 11. Guiding arms 67 pivoted at 31 and drawn together by a spring 69 engage opposite edges of the workpiece. The wheel 49 is held in various positions for particular depths of splitting by a spring 75 engaging notches 73 ; a scale 78 and pointer 77 indicate the depth of splitting. Specification 221,865, [Class 31 (i)], is referred to.
Patent GB-830134-A (GB)
Title: Improvements in oil burners for furnaces
Inventor: JUDGE HAROLD RUPERT
IPC: F23C7/00
Filed: 1955-07-13
Abstract: 830,134. Spray burners. BENZ Ltd. July 13, 1956 [July 13, 1955], No. 20299/55. Class 75(1) In an oil burning furnace particularly burning heavy oil having air for supporting combustion supplied by a fan (not shown) through a duct 2 leading to an opening 4 in the furnace wall 3 and housing an atomizing nozzle 9 for the fuel two distinct sets of vanes 6, 10 are located in the duct between the fan and the nozzle, the vanes in each set extending radially and being adjustable to varying angles to the air stream to produce a pressure drop in the air on passing the vanes and at the same time to impart a spinning motion to the air stream about the axis of the duct. The two sets of vanes 6, 10 may be inclined in opposite senses. The vanes are sector-shaped such that when aligned perpendicular to the air stream there is hardly any gap between the vanes when viewed axially. Each vane is.mounted on a radial rod in a central ring 12 and can be turned in the ring and then locked in position. The vanes 10 extend radially from the burner pipe to the wall of the duct 2 but the vanes 6 are of less radial extent having a clearance between the tips and the duct wall and around the burner pipe.
Patent GB-1277541-A (GB)
Title: Bleaching method and product thereof
IPC: D06L4/70
Filed: 1970-04-28
Abstract: 1277541 Bleaching GILLETTE CO 28 April 1970 [29 April 1969] 20329/70 Heading D1P Hair or wool is bleached by first impregnating it with an aqueous solution containing 0.05-0.15 molar dissolved ferrous salt and a dissolved chelating agent with a concentration of 0.2-5 times the molar concentration of the salt at 20C to the boiling point of the solution and then contacting it with aqueous hydrogen peroxide at pH 8-11. The chelating agent has a chelate formation constant (K ma ) with ferrous ion such that log K ma , is 2-8 and the total ionic strength of the solution is 0.5-2.5. The ferrous salt solution may also contain 0.005-0.05 molar reducing agent e.g., alkali metal formaldehyde sulphoxylates, alkali metal sulphites and alkali metal thiosulphates. Preferably in the impregnating stage a buffer system is included to maintain the pH between 3.5-6 and to maintain the total ionic strength above the minimum desired level. Examples of the chelating agents used are ascorbic acid, citric acid, serine and ethylene diamine. In the bleaching stage the fibres are maintained in contact with an aqueous solution containing 1-6 % hydrogen peroxide by weight and adjusted to pH 8-11 by a suitable base preferably ammonium hydroxide at 20-60C.
Patent GB-143109-A (GB)
Title: An improved machine for treating floors
IPC: A47L11/12
Filed: 1919-08-19
Abstract: 143,109. Meyer, E. Aug. 19, 1919. Floors, cleaning.-Floors are polished &c. by tools 18 which are reciprocated in parallel planes and on opposite sides of the central plane of motion AB of the wheeled frame 1 carrying a motor and operating gear. In the form shown, the tools are connected by stirrups 17 to levers 11 pivoted at 16 and oscillated by rods 10 and a double-crank shaft 8 rotated from the motor by sprocket gearing. The paths of the tools overlap slightly at their inner ends to ensure complete treatment of the floor. In a modification, the tools are mounted on screwed spindles driven by the motor through friction gearing, the direction of drive being intermittingly reversed to cause the tools to reciprocate along their spindles.
Patent GB-1209875-A (GB)
Title: Improvements relating to heating and ventilation systems for motor vehicles
IPC: B60H1/00
Filed: 1969-04-22
Abstract: 1,209,875. Heating and ventilating vehicles; heat exchangers. DAIMLER-BENZ A.G. 22 April, 1969 [23 April, 1968], No. 20488/69. Headings F4U and F4V. In a motor vehicle heating and ventilating system, fresh air flows through a heat exchanger which is fed with engine coolant and which has two zones at different temperatures, air which .has passed through the higher temperature zone being admitted to the lower part of the passenger compartment, and air which has passed through the lower temperature zone being admitted to the upper part of the compartment. As illustrated, two heat exchangers are provided, each having an inflow vessel 8 and an outflow vessel 9 connected by ribbed tubes 4 to a return header 6. The heat exchangers serve opposite sides of the passenger compartment and are so disposed in a easing 12 that air heated by coolant flowing to the return header passes through a connection 13 to the passenger footspace, and that air heated by coolant flowing from the return header passes via a duct 14 to windscreen nozzles and via at least one duct 15 to lateral nozzles. The air flows to or from the casing 12 may be controlled by flaps.
Patent GB-350758-A (GB)
Title: Improvements relating to the preservation of meat, carcases or the like
IPC: A23B4/10
Filed: 1930-07-07
Abstract: Meat, poultry, &c. is preserved by coating with blood serum obtained from the same or another animal.  The serum may be separated by allowing the blood to stand or by centrifuging and may be applied to the meat by brushing, spraying, &c.
Patent GB-206207-A (GB)
Title: Improvements in or relating to the treatment of sulphide ores and minerals
IPC: C01B17/16
Filed: 1922-07-27
Abstract: 206,207. Petersson, E. F., (Representative of Petersson, F. J. A. G.), and Field, S. July 27, 1922. Sulphur.-Sulphide ores are treated with steam, preferably superheated, to recover sulphuretted hydrogen. A limited quantity of air may be ad. mitted with the steam or may be added to the gases coming from the ore chamber, and the mixed gases may be passed over an iron oxide catalyst for the production of sulphur. A temperature of 650‹ C is mentioned for zinc blende or higher temperature such as 900‹ C. when other interfering reactions are not induced. Sulphur may be obtained from the sulphuretted hydrogen by mixing it with sulphur dioxide obtained by roasting a portion of the ore. When the ore contains excess of sulphur, as in the case of iron pyrites, a part of the sulphur distils off by heat alone, and is recovered in the subsequent stage of recovering sulphur from the sulphuretted hydrogen. The apparatus described comprises a chamber heated by fireclay tubes a which carry the products of combustion of gaseous fuel produced or introduced at C. These tubes a are arranged in staggered relation. The floor D of the furnace is formed of bricks resting upon iror. bars without any mortar between them so that the superheated steam which is passed into the space E beneath the floor, can rise up through the interstices of the floor and pass through the ore charge. The gases passing out of the tubes a pass around a steam superheater F in a flue G and then pass through pipes b to the chimney. The pipes b serve to preheat the ore. The furnace floor is sloped to facilitate discharge. The sulphuretted hydrogen passes out at H without having come in contact with any iron part. Reference has been directed by the Comptroller to Specifications 3087/74, 500/78, 983/79, 2055/83, 5428/83, [all in Class 1, Acids, Alkalies &c.], 9765/84, 13892/85, [both in Class 51, Furnaces and kilns], 6909/87, 13474/90, 2789/07, 18598/12, [both in Class 51 (ii), Furnaces and kilns for applying &c.], 18007/14 and 172,101.
Patent GB-187204-A (GB)
Title: Improvements in and relating to cuffs for shirts or the like
IPC: A41B7/00
Filed: 1922-07-28
Abstract: 187,204. Heusen, J. M. van. Oct. 12, 1921, [Convention date]. Double and multiple fabrics; double and single fabrics combined; fabrics with tubular portions; cutting out, weaving to facilitate.-A multiple-ply woven fabric for cuffs is adapted to facilitate the binding of the cuff edges. The fabric shown in Fig. 4 is three-ply with warp and weft threads 7, 8 respectively and interweaving threads 6, and is woven with a single-ply extension 4 and a two-ply extension 3 in which the threads 6 are incorporated. These extensions are turned in to form a binding, or for attachment to the shirt sleeve 2, and the surface of the extension 3 has the same appearance as the body of the cuff owing to the threads 6. The fabric may be woven to form a series of cuff-blanks united by the extensions 3, 4, and may have weakened fold portions for double cuffs. In a modification, the fabric is four-ply, and each extension is two-ply with interweaving threads.
Patent GB-1397105-A (GB)
Title: Menstrual-liquid absorption tampon and an insertion tool
IPC: A61F13/20
Filed: 1972-05-04
Abstract: 1397105 Tampon and insertion tool SVENSKA CELLULOSA AB 4 May 1972 [25 May 1971] 20734/72 Heading A5R A menstrual liquid absorption tampon 6 in combination with an insertion tool (I) is characterised in that the tampon comprises two longitudinally extending channels 9, 10 and in that the insertion tool comprises fingers 3, 4 each of which is disposed in one of the said channels, the fingers extending from, a handle of portion 2 of the insertion tool. The tampon 6, may be formed by folding- over or folding-in and compacting a sheet-like liquid absorptive material, and the channels, 9, 10 which in Fig 5, open outwardly, are formed by postioning the fingers 3, 4 of the insertion tool in the folds of the tampon before the compacting operation. The tampon is compacted such that the cross-section is substantially oval or rectangular and the channels may open to the narrow sides of the tampon through narrow slots, or the channels are bores in the tampon. The insertion tool (Figs 1 and 2, not shown) is formed as an integral unit of small thickness comprising a flat handle and two substantially straight fingers projecting from the handle and in the plane of the handle. The insertion tool is formed of a material having a low friction coefficient when in contact with the tampon material, and may entirely or in part consist of an easily dissolvable fibrous material or a water-soluble plastic material.
Patent GB-148921-A (GB)
Title: Improvements in or relating to building blocks and the like and structures produced thereby
IPC: E04B2/28
Filed: 1920-07-10
Abstract: 148,921. Brissart, M. C. A. Sept. 30, 1916, [Convention date]. Addition to 148,355, [Class 87 (i), Bricks &c.]. Void [Published under Sect. 91 of the Act]. Draining-channels; kerbs. - The angled blocks for building purposes having the vertical portions thicker than the horizontal portions, as described in the parent Specification, are applied to various other constructions of brickwork and are modified where necessary. Channels are formed of abutting pairs of blocks, Fig. 5, or the limbs 2 may overlap. Fig. 7 shows a kerb.