baber/WOPTO huggingface dataset:
Patent GB-1500479-A (GB)
Title: Screening of fine-grained bulk materials
IPC: B07B7/06
Filed: 1975-01-21
Abstract: 1500479 Screening apparatus A VON BENNIGSEN-MACKIEWICZ and C VON BENNINGSEN-MACKIEWICZ 21 Jan 1975 [23 Jan 1974 17 Dec 1974] 35423/77 Divided out of 1499141 Headings B2H and BIT An apparatus for screening flour comprises a chamber 28 connected into a conveyor pipeline through which air and flour are drawn by a fan, and a screen 23 having a portion in the chamber 28 and a portion in a cleaning device 30, the screen being rotatable to bring parts thereof successively into the chamber 28 and cleaning device 30. The flour passes upwardly through the screen 23 and the dirt which adheres to the screen is removed therefrom by passing air downwardly through the screen in the device 30, the dirt being collected in a container 32 made of textile material. The screen 23 is sandwiched between upper and lower housing discs 39 and 40 which remain stationary and are provided with aligned openings (41), Fig. 3 (not shown), the openings in the upper housing disc being greater in area than the openings in the lower housing disc. The screen 23 may be divided into sectors (36), Fig. 2 (not shown) by webs (37) and is rotated either continuously or intermittently. It may also be vibrated. A lower conical part 45 of the chamber may be provided with air inlet holes 46 and pipes 47, 48 and may be surrounded by a housing 49 having an adjustable air inlet 50.
Patent GB-835485-A (GB)
Title: Improvements in powder compacts and the like
Inventor: CROME ERNEST PETER
IPC: A45D33/00
Filed: 1957-11-13
Abstract: 835,485. Powder compacts. BROWN & CO. (MANUFACTURING) Ltd., A. S. Aug. 20, 1958 [Nov. 13, 1957], No. 35445/57. Class 18. In a powder compact for either a loose or a cream powder refill 8 the base of the outer container is formed with an aperture 11 (not shown) to allow a finger to be inserted and press on a substantially flat resilient sheet metal tongue 14 to raise the refill 8 to enable it to be withdrawn. The outer container has a hinged lid 3 and is formed with a false bottom 13 out of which the tongue is cut with its free end 15 closing the aperture 11 and slightly dished in shape. The refill 8 is retained in place by resilient catches 6 which engage an annular groove 7 on the refill.
Patent GB-897094-A (GB)
Title: Yohimbone and yohimbene derivatives
Filed: 1959-10-20
Abstract: The invention comprises 11-dimethylamino deserpidine and its 3a -isomer, 18b -acetoxy-11-dimethylamino - 17a  - methoxy - 16b  - methoxycarbonyl - D 3(14) - 20a  - yohimbene; 18b  - acetoxy-11 - dimethylamino - 17a  - methoxy - 16b  - methoxycarbonyl - 3b  : 20a - yohimbane and its 3a  - isomer and 11 - dimethylamino - 18b  - hydroxy - 17a  - methoxy - 16b  - methoxycarbonyl-3b  : 20a  - yohimbane and its 3a  - isomer. The compounds are prepared by reacting 6-dimethylamino tryptamine with dextrorotatory (pyridine) 1b - carboxymethyl - 2b  - methoxycarbonyl - 3a  - methoxy - 4b  - acetoxy - 6b  - formyl - cyclohexane, preferably in the presence of an organic base such as triethylamine, to give 18b -acetoxy-11-dimethylamino - 17a  - methoxy - 16b  - methoxycarbonyl - 2 : 3 - 3 : 4 - diseco - D 4(21) 20a  - yohimbene - 3 - oic acid, reducing, e.g. with a metal hydride such as potassium borohydride to 18b  - acetoxy - 11 - dimethylamino - 17a  - methoxy - 16b  - methoxycarbonyl - 2 : 3 - 3 : 4 - diseco - 20a  - yohimbane - 3 - oic acid which is cyclised in ring D by dehydration, e.g. by heating in a solution of a weak acid (giving 18b -acetoxy-11-dimethylamino-17a  - methoxy - 16b  - methoxycarbonyl - 3 - keto - 2 : 3 - seco - 20a  - yohimbane) and in ring C by the action of a dehydrating agent such as phosphorus oxychloride to give 18b -acetoxy-11-dimethylamino - 17a  - methoxy - 16b  - methoxycarbonyl - D 3(14) - 20a  - yohimbene, reducing under acid or alkaline conditions, e.g. with zinc and perchloric acid or with an alkali-metal borohydride, to give the corresponding yohimbene 3b  and 3a  isomers respectively as the major product, separating, e.g. by fractional crystallisation or chromatography, saponifying the appropriate isomer, e.g. by treatment with an alcoholic solution of an alkali or with an alkali metal borohydride, to give an 11-dimethylamino-18b -hydroxy - 17a  - methoxy - 16b  - methoxycarbonyl 3b  or 3a  : 20a  - yohimbane and esterifying with an acylating derivative of 3 : 4 : 5 - trimethoxy benzoic acid to yield an 11-dimethylamino deserpidine or its 3a isomer. Specifications 868,479 and 888,411 are referred to.
Patent GB-430804-A (GB)
Title: Improvements in or relating to combination locks
IPC: E05B37/08
Filed: 1934-12-11
Abstract: 430,804. Locks. CHIUSURE AUTOMATICHE DI PROTEZIONE SOC. ANON. ITALIANA C.A.P.S.A.I., and GIORDANA, L., 11, Via Andrea Doria, Turin, Italy. Dec. 11, 1934, No. 35605. [Class 44] A sliding bolt 1 is retained in the shot positions by a permutation lock comprising two coaxial discs 8, 9 with slots 8<a>, 9<a> into which the bolt slides radially. The bolt is released by rotating the discs until the slots 8<a>, 9<a> are in alignment with the bolt. The discs are rotated by a rod 13 which carries a tooth 19, a pin 20 on the disc 9 and a tooth 22 on the disc 8. To set the disc 8, the rod 13 is rotated in one direction and to set the disc 9 the direction of rotation is reversed. The setting is indicated visually by a handle 23 and audibly by a spring metal plate 18 which snaps into notches in a plate 16. The starting position is indicated by a long notch. Unauthorized turning of the disc 9 is prevented by the bolt engaging peripheral teeth on the disc 9. Entry of the bolt into the slot 9<a> is masked by making the diameter of the disc 8 the same as the diameter of the root circle of the disc 9. When applied to the steering column of a motor car, the bolt engages a notch in the column. It may be shot either by a knob on the bolt or by the depression of a knob 33, Fig. 9, which actuates the bolt through racks and pinions 34, 38, 37, 35.
Patent GB-1389864-A (GB)
Title: Urethane foam compositions
IPC: C08G18/48
Filed: 1972-08-01
Abstract: 1389864 Water absorbable polyurethane foam DOW CHEMICAL CO 1 Aug 1972 [2 Aug 1971] 35894/72 Heading C3R Water absorbable open celled rigid polyurethane foam having the ability to absorb at least 70% by volume of water when immersed therein for 3 minutes may be prepared by reacting a mixture comprising (A) at least 20% by weight based on the combined weight of A, B and C of an amine initiated polyetherpolyol having an OH group to M.W. ratio of at least 1 : 333, (B) from 0 to 46% by weight when the combined weight of A and B is greater than 86À5 but less than 92% and from 0 to 63 % by weight when the combined weight of A and B is greater than 20% but less than 86À5% by weight based on the combined weight of A, B and C of a hydroxyl initiated polyether polyol having an OH group to M.W. ratio of at least 1 : 333, (C) from 9 to 50% by weight based on the combined weight of A, B and C of a hydroxyl initiated polyetherpolyol having a hydroxyl group to M.W. ratio of less than 1 : 500, (D) a polymethylene polyphenylisocyanate having a functionality of between 2 to 3À2, (E) from 0 to 2À5% by weight, based on A, B and C, of water, (F) a volatile blowing agent, (G) 0 to 0À5% by weight based on A, B and C of a catalyst for urethane formation and (H) a silicone oil cell control agent, the NCO : OH ratio in the mixture being from 0À5 to 0À9. The reactants are all those used conventionally in the manufacture of polyurethane foams. In a typical example a mixture is formed from a polyether derived from propylene oxide and aminoethylethanolamine, a polyether derived from glycerol and ethylene oxide, a polyether derived from glycerol and propylene oxide and end-capped with ethylene oxide, trichloromonofluoromethane and a silicone-glycol copolymer and mixed and reacted with a polymethylene polyphenylisocyanate of functionality 2À8 at an NCO : OH ratio of 0À75 : 1. The foams may be used in flower containers, in containers as a baffle to restrict motion of liquid placed in the container and as filter elements.
Patent GB-1078076-A (GB)
Title: Device for connecting rungs to ropes in rope ladders and rope ladder including such a device
Inventor: KEELE HERBERT CHARLES
IPC: E06C1/56
Filed: 1964-09-02
Abstract: 1,078,076. Rope ladders. KEELES OF HADLEIGH Ltd. Sept. 1, 1965 [Sept. 2, 1964], No. 35958/64. Heading A6L. Rope 10 of a rope ladder passes into a slot 6 in a rung end member 5 and over a curved member 9 and out of the slot on the same side so that the rope is gripped when it is taut. The rung 3 is a push fit on a spigot 2 projecting from the member 9.
Patent GB-1015394-A (GB)
Title: Improvements relating to foams
IPC: C08J9/00
Filed: 1962-09-21
Abstract: Open-celled polyurethane foam is prepared by reacting a polyalkylene ether polyol having an average molecular weight of 1000 to 6000 with an arylene diisocyanate in the presence of water, a tertiary amine catalyst and a water-soluble organosilicone polymer having a molecular weight of 2800 to 6000, wherein the reaction is carried out in the presence, as a cell regulator, of 1 to 15 parts by weight per 100 parts by weight of polyol of an alkylated amide of formula (1) R1CONR2R3 wherein R1 is hydrogen or a lower alkyl radical and R2 and R3 are lower alkyl radicals or (b) <FORM:1015394/C3/1> wherein R4 is hydrogen or a lower alkyl radical, R5 and R6 are lower alkylene radicals, and X is methylene, oxygen or sulphur; or (c) <FORM:1015394/C3/2> wherein R7 and R9 are lower alkylene radicals and R8 is a lower alkyl radical.  The water-soluble organo-silicone, polymer may be: <FORM:1015394/C3/3> wherein Y is a lower alkyl radical; Y1 is hydrogen or a methyl radical; Y11 is a lower alkyl radical; a is 1,2 or 3; b is 0, 1, or 2 and a + b = 3, n is an integer of value such that the molecular weight of the black of recurring siloxane units is not greater than 1500; m is an integer having a value such that the molecular weight of the block of recurring oxyalkylene units is 750 to 2000, and at least half the weight of said oxyalkylene units is made up of oxyethylene units. The cell regulator may be N,N-dimethylformamide, N,N1 - dimethylacetamide or N-methylpyrrolidene.  In addition a sulphoxide of formula <FORM:1015394/C3/4> or a sulphone of formula <FORM:1015394/C3/5> n being 0, or 1 and X1, X2, X3 and X4\t being lower alkyl radicals when n = 0 and lower alkylene radicals when n = 1 and R2, R3 and R8 may have the additional meaning of hydrogen. The mixture may contain 30-70 parts of amide per 100 of mixture. Acetamide and dimethyl sulphoxide may be used.  The polyether polyol may be polypropyleneether triol and the isocyanate a mixture of toluene 2, 4 and 2, 6 diisocyanates.  A supplementary blowing agent e.g.fluorotrichloro methane may be used.  The water silicone polymers are prepared by reacting three molecules of the monoether of a polyalkyleneether glycol: Y11 <FORM:1015394/C3/6> with a polysiloxane <FORM:1015394/C3/7> wherein Y111 is a lower alkyl radical and Y, Y1, Y11, a, b, m and n are as defined above, in the presence of an acid catalyst.  Filters, sponges, clothing interlinings and textile laminates may be made from the foams.
Patent GB-838466-A (GB)
Title: Improvements relating to plate heat-exchangers
Inventor: BUCKMAN PETER
IPC: F28F9/00
Filed: 1957-11-20
Abstract: 838,466. Plate heat exchangers. MORRIS MOTORS Ltd. Nov. 5, 1958 [Nov. 20, 1957], No. 36100/57. Class 64(3) A plate heat exchanger of the cross flow type comprising plates 4 between which are sandwiched corrugated thin metal plates 2, 3 to provide secondary neat transfer surfaces and spacing bars 5 inserted marginally between alternate pairs of plates, is characterized by the corners of the plates and the extremities of the spacing bars being arranged to project diagonally from the exchanger to mutually overlap and each having a slot 8, 9, 10 which is frictionally engaged by a locating strip 7. Trays 11, 13 are provided at the top and bottom of the exchanger.
Patent GB-311181-A (GB)
Title: Improvements relating to the manufacture of designs, numerals, letters or the like
IPC: G09F7/16
Filed: 1928-12-07
Abstract: 311,181. Wilson, A. D. Dec. 7, 1928. Moulding sheet materials.- Sheet stock from which letters, numerals, or other designs b are to be blanked out is provided with projections or studs a so opened that each character blanked out has two or more studs which serve for attachment to a plate, &c. The stock may be prepared by casting or by rolling, and may be of vulcanite, condensation products, or other mouldable material. The spacing of the studs is varied according to the character to be blanked.
Patent GB-1512133-A (GB)
Title: Force measuring member for incorporation between a force receiving plate and base plate
IPC: G01L1/16
Filed: 1976-09-02
Abstract: 1512133 Force measurement KISTLER INSTRUMENTE AG 2 Sept 1976 [26 Sept 1975] 36336/76 Heading G1W A force measuring member 23 for incorporation between a force receiving plate 1 and a base-plate 2 of a force measuring system, in particular for measuring impact forces, comprises a body defining two plane parallel force transmission surfaces 14, 15 adapted to be secured by screws against respective ones of the plates, the body having a central passageway such that one of the surfaces 14 may be secured to its respective plate 2 by means of a screw 19 inserted into the passageway, and the body being adapted to be engaged by mounting screws 18, 19 at locations such that the forces due to the mounting screws are transmitted through the same areas of the force transmission surfaces as forces transmitted through the body from the force receiving plate to the base-plate. In Fig. 3, the force measuring member comprises a measuring element 32 sandwiched between end-plates 31, 33 held together by sleeve 34.
Patent GB-1381587-A (GB)
Title: Process for the manufacture of citral
IPC: B01J23/00
Filed: 1973-07-31
Abstract: 1381587 Oxidative dehydrogenation catalyst L GIVAUDAN & CIE SA 31 July 1973 [31 July 1972] 36372/73 Heading B1E [Also in Division C2] A supported copper catalyst is prepared by adding an aqueous Cu(NO 3 ) 2 /NH 4 OH solution to alumina-silica spheres, ageing, decanting the supernatant, and adding to it aqueous NaOH, mixing the resulting precipitate with a Ba(OH) 2 / acetic acid solution, adding the mixture to the previously impregnated spheres, removing the supernatant and heating the slurry coated spheres.
Patent GB-417749-A (GB)
Title: Improvements in or relating to door and the like bolts
IPC: E05B63/12
Filed: 1933-12-28
Abstract: 417,749. Sliding-bolts. BURD, S., 2, Massie Street, Cheadle, Cheshire. Dec. 28, 1933, No. 36451. [Class 44.] A bolt 3 is provided adjacent its locking end with a projection 8 and an enlargement 7 is formed on the housing 2 to receive the projection 8 when the bolt is retracted. When the bolt is shot, the projection passes along a channel 10 or slot in the keeper 9 and when the bolt is turned to the position shown engages behind the keeper to prevent separation of the bolt and its keeper. To retain the bolt in this position, a notch may be provided in the end of the keeper to receive the projection 8 and a corresponding notch may be provided for the operating arm 4. The projection 8 may cooperate with a stop surface 19 on the keeper to limit rotation of the bolt.
Patent GB-826845-A (GB)
Title: Improvements in methods of cleaning heating surfaces of economisers and similar plant
Inventor: ENERUS ERIK OSKAR
IPC: B08B9/032
Filed: 1957-03-22
Abstract: 826,845. Cleaning heat-exchangers. K. E.- PATENTER A. B. March 22, 1957, No. 36452/58. Divided out of 826,844. Class 99(2). In a method of cleaning the heating surfaces of economisers and similar plants by subjecting the surfaces to a falling shower of shot, the fallen shot being collected and raised in order to return the shot to the surfaces to be cleaned, the return of the shot occurs intermittently in bulk portions and during the return conveyance of the shot the latter substantially maintains the temperature it had when collected.
Patent GB-1436469-A (GB)
Title: Time lapse camera
IPC: G03B7/10
Filed: 1973-08-01
Abstract: 1436469 Photographing at regular intervals NATIONAL RESEARCH DEVELOPMENT CORP 25 July 1974 [1 Aug 1973] 36492/73 Heading G2A Pedestrian traffic is photographed automatically at regular intervals with a camera having a fixed shutter speed, automatically controlled aperture size, and end of film autostop. An intervalometer having a crystal oscillator provides pulses, at a variable rate, for operation of the camera. The aperture size is controlled by a photo-cell and servomechanism. The camera may have a frame counter and operation light, and may be situated within a casing having a window and heating means to prevent the window from misting up. The apparatus may be attached to a tripod or lamp post using a locking mount or toggle straps.
Patent GB-1386078-A (GB)
Title: Brake adjusting pins
IPC: F16D65/48
Filed: 1971-08-04
Abstract: 1386078 Brake adjusting pins; mounting cams on shafts S ARTHUR and P W JOHNSON 3 Aug 1972 [4 Aug 1971] 36542/71 Headings F2E F2H and F2U A brake adjusting pin comprises a tool engaging part 14, an abutment 16 engaging the backing plate 10 of an internal shoe drum brake, an intermediate bearing portion 20 rotatably mounted in a hole 12 in plate 10, a cam 32, engaging portion 24 comprising teeth 28 and an inner screwed threaded portion 34, the arrangement being such that the pin is mounted by passing it through hole 10 and cam 32 and a nut 36 mounted thereon whereby rotating parts 14 and nut 36 results in teeth 28 cutting complementary teeth in cam 32. A strong compression spring 40 is located between the backing plate 10 and cam 32. The pin may be case hardened and corrosion resistant.
Patent GB-1527140-A (GB)
Title: Linear electric motors
IPC: F04B17/04
Filed: 1975-09-19
Abstract: 1527140 Reciprocating linear motors TECUMSEH PRODUCTS CO 19 Sept 1975 [19 Sept 1974] 36543/76 Divided out of 1527136 Heading H2A In a linear motor wherein an armature 40/41 reciprocates along an air gap axis which is normal to the axis of two coaxial rectangular poles 32a, 32b of a magnetic circuit 31, the surfaces 32c, 32d of the poles define between the poles a space of part-circular cross-section normal to the air gap axis, and these surfaces include parts 140x, 142x, 140y, 142y forming opposed pairs of coplanar surfaces in planes X, Y, the maximum distance between the planes X, Y being less than the maximum diameter of the part-circular cross-section. In the compressor arrangement shown, the poles 32a, 32b define a conical air gap.
Patent GB-1458455-A (GB)
Title: Valve
IPC: F16K3/16
Filed: 1974-08-21
Abstract: 1458455 Valves TAPCO INTERNATIONAL Inc 21 Aug 1974 [27 Sept 1973] 36680/74 Heading F2V A valve for sealingly closing a flow path for high pressure, high temperature erosive solids (e.g. powder) or fluid, comprises upstream and downstream rotary slide valve members 14a and 14b. Each valve member is provided with pressure seals 24a, 26a and 24b, 26b preferably of double bellows construction. The valve members are opened and closed by rotary actuators 36a, 36b and are guided by arcuate ribs (50a, 50b), Fig. 2 (not shown). A circuit, Fig. 4 (not shown), employing a series of AND gates (52 to 62) and solenoid-actuated pressurefluid control valves (64 to 72), controls the sealing sequence on opening and closing of the valve. Thus, e.g. when the "close" button is pressed the actuator 36a closes the valve member 14a, whereafter the seals 24a, 26a are made effective by supplying them with pressure fluid via conduits 32a, 34a. Then the valve member 14b is closed by its actuator 36b and the seals 24b, 26b are made effective by supplying pressure fluid via conduits 32b, 34b. Moreover a chamber 16 intermediate the closed valve members is supplied with sealing pressure fluid via conduit 28. The valve housing includes a pair of sweptback solids collection chambers (37a, 37b), Figs. 2 and 3 (not shown), each fitted with a drain pipe (41a, 41b).
Patent GB-926822-A (GB)
Title: Method of fixing atomic wastes for disposal
Inventor: GANT PRESTON LENELL
IPC: G21F9/16
Filed: 1959-11-13
Abstract: 926,822. Processing and disposal of radioactive waste. CONTINENTAL OIL CO. Nov. 13, 1959 [Dec. 31, 1958], No. 36812/59. Drawings to Specification. Class 39 (4). Liquid radio-active waste is rendered more suitable for disposal by the addition of clay minerals in an amount of 1 to 60% by weight of the total mixture, lime in an amount of 2 to 30% by weight of the liquid waste, and basic metal hydroxide to give a pH of 10 to 13. Alternatively, the amount of lime added may be sufficient to give a Ca ion concentration of ¢ to 25% by weight of all components excepting the hydroxide. The treated waste may be pumped into subterranean spaces or injected into artificial fractures in impermeable rock formations, as described in Specification 926,821; the waste solidifies at normal or increased temperature. Suitable clay minerals are bentonite, calcium montmorillonite, and natural clays containing montmorillonite, kaolin, chlorite, and attapulgus clays. The basic metal hydroxide may be sodium, potassium, or calcium hydroxide in the form of a concentrated solution or as pellets. Portland cement may be added to hasten setting. To render the mixture more suitable for pumping, quebracho, tannins, or carboxymethyl hydroxyethyl cellulose may be added as thinners. Examples of liquid waste which may be treated are the aqueous layers resulting from the extraction with tributyl phosphate of solutions of spent fuel elements; these solutions are obtained by dissolving uraniumaluminium alloy elements in nitric acid, zirconium-uranium alloy elements in hydrofluoric acid, or stainless steel-uranium oxide elements in dilute aqua regia.
Patent GB-1089347-A (GB)
Title: Air sifter
IPC: B07B7/083
Filed: 1965-08-27
Abstract: 1,089,347. Pneumatic separators. POLYSIUS G.m.b.H. Aug. 27, 1965 [May 18, 1965], No. 36847/65. Heading B2H. In an air classifier wherein material is separated into coarse and fine fractions by means of an upward ail current, a fan 10 for inducing the air current, a rotating vane assembly 11 which defines the degree of fineness of the fine particles and a scatter-plate 12 for throwing the material outwardly are carried below one another in that order on a driven tubular member 8, 9 which is rotatably mounted in upper and lower bearings 6, 7, the fixed parts of the bearings being mounted on a non-rotatable common axle 2 which is suspended in pendulum fashion from the top part 1a of the classifier and is held at its lower end by radially extending struts 3 which are radially adjustable by means of nuts 5 so that the bearings can be easily brought into strict axial alignment. The tubular member consists of tube parts 8, 9 rigidly held together and is driven by means of a pulley 13 connected to the part 8. In operation, the fan 10 maintains an air current as shown by the dotted lines in the figure. Material to be classified and air are supplied from outside the classifier to the interior of the classifier. The material is fed on to the plate 12 and is scattered thereby into the upward air current. The major part of the coarse particles, due to their relatively high specific gravity, are not affected by this air current and fall into the funnel 4. The remaining material is, carried upwards by the air current and enters the counter-vane system 11 which rejects coarse particles centrifugally but allows the light particles to pass through and be discharged into the space between the casing 1 and the funnel 4.