baber/WOPTO huggingface dataset:
Patent GB-647230-A (GB)
Title: Improvements in or relating to electrical servo-motor systems
IPC: G05D3/14
Filed: 1947-12-19
Abstract: 647,230. Automatic control systems. SPERRY GYROSCOPE CO., Inc. Dec. 19, 1947, No. 33603. Convention date, Dec. 21, 1946. [Class 38 (iv)] [Also in Group XXXVII] In a system in which a D.C. servomotor is controlled by variation of its field excitation, the armature is supplied from a rectifier connected to an A.C. source in series with a fixed reactive element so that armature current is maintained approximately constant irrespective of variations in back E.M.F. In Fig. 1 an infra-red scanner 1 is mounted for rotation in azimuth on a platform 2 stabilized about its roll and pitch axes on a craft by a gyro vertical 7 also on the craft. Selsyns 13, 14 associated with the pitch or roll of the gyro constitute coarse and fine transmitters, the rotors 15, 16 of which are supplied from an A.C. source 21 and are suitably coupled to a gimbal ring 10 of the gyro, the stators 18, 19 being connected to the stators 24, 25 of Selsyn receivers 26, 27. The outputs from the receiver rotors 28, 29 control, through a phase-sensitive demodulator and amplifier 32, the D.C. excitation of split field winding 33 of a servomotor 35 so that the latter runs in the appropriate direction to drive a gimbal ring 3 of the platform into correspondence with gimbal ring 10 of the gyro. The magnitude of the motor field excitation is dependent on the amount of relative angular displacement between the platform and the gyro and to ensure that motor torque is substantially proportional to field excitation motor armature 36 is supplied through a bridge rectifier 43 connected in series with a condenser across A.C. source 21 so that armature current is maintained approximately constant. In a modification, condenser 46 is replaced by an inductance. The armatures of two or more servomotors, e.g. two motors stabilizing the platform about pitch and roll axes respectively, connected in series across the output of the rectifier, is referred to.
Patent GB-316492-A (GB)
Title: Improvements in or relating to controlling devices for air heating installations of power driven vehicles
IPC: B60H1/34
Filed: 1928-11-16
Abstract: 316,492. Hornkohl, T., and Meyer, K. Nov. 16, 1928. Ventilating vehicles; ventilators; valves.-A controlling device for use in connection with fresh air heating installations of powerdriven vehicles comprises two aligned and relatively rotatable tubes 2, 5, one of which is disposed outside the vehicle body and is connected with the heater and has a valve 1 for permitting the passage of hot air either to the interior of the vehicle or to the outer atmosphere. The other tube 5 has a flared end 6 inside the body. The valve 1 is forced upon either of its seatings 9, 10 by a spring 13 and is operable by one or more handles 20 through a, link system 16. 18. The upper end of the tube 2 extends through the floor 4 of the vehicle and forms a guide 8 for the tube 5.
Patent GB-1124849-A (GB)
Title: A reinforcement mat and a method of constructing a plastered wall or ceiling by means of this mat
IPC: E04F13/04
Filed: 1966-07-27
Abstract: A fabric for reinforcing a plastered wall or ceiling comprises a plastics or fibreglass net or wire mesh, having individual blocks of plastics at all or some of the intersections of the net or mesh.  One face of the block parallel to the plane of the fabric is larger than the opposite face.  Reference has been directed by the Comptroller to Specification 1020708.
Patent GB-647003-A (GB)
Title: Improvements in cathode-ray tube
IPC: H01J29/89
Filed: 1947-12-22
Abstract: 647,003. Cathode-ray tubes. PHILIPS ELECTRICAL, Ltd. Dec. 22, 1947, Nos. 33820 and 33821. Convention date, Oct. 24, 1946 and Oct. 26, 1946. [Class 39 (i)] In a television receiver, the fluorescent screen and the mirror, which reflects the image on to an external viewing screen, are mounted to form a preadjustable unit which can be supported in the tube independently of the electrode system. A silvered spherical mirror 7, Fig. 1, and a fluorescent screen 6 are adjustably mounted by screws respectively on a plate 9 and a spider 10 which are secured together by nuts on struts 8. Springs 13 facilitate adjustment of the mirror, and resilient members 16 and beads 17 register the structure with respect to the container. Reflections from parts, such as the struts, of the supporting structure and of the tube may be reduced by a suitable coating. In a modification, the aspherical correcting plate 18, Fig. 2, is secured to the structure through extensions of the struts 8 which are supported through springs 22 from the container. Slots in the spider arms 19 adjustably engage with bolts 21 on brackets 20 on the struts. In assembling the structure, the struts 8 are first secured to the plate 18 and the spider assembly and the mirror are then secured to the struts. The structure is then adjusted optically, with the aid of a light beam projected on to the screen 6, corrections being made in respect of operating temperatures, and the various screws are then locked by spraying with a quick-drying adhesive. Following the insertion of the structure within the container, the plate 18 is uniformly heated to seal it to the tube which is then evacuated.
Patent GB-1411313-A (GB)
Title: Buildings
IPC: E04H1/04
Filed: 1973-07-16
Abstract: 1411313 Multi-storey building HEV HOCHBAUTECHNIK - ENTWICKLUNGS - UND VERWALTUNGS GmbH & CO KG 16 July 1973 [9 Aug 1972] 33860/73 Heading E1A A building comprises a plurality of hollow columns 14 containing a lift and/or stair, each column having a plurality of storey units 16 spaced by an amount a equal to the height h of each unit, and the units of each column being partly inserted into the gap between units of an adjacent column. The columns carry service conduits. The columns may be arranged in straight lines, circles or stepped up a hillside.
Patent GB-632484-A (GB)
Title: Comb accessory
IPC: A45D24/42
Filed: 1947-12-23
Abstract: 632,484. Combs. HEYMAN, F. R. Dec. 23, 1947, No. 33939. [Class 131] A comb c is provided with a strip of rough-surfaced pile fabric 1 the teeth t being received in openings 3 provided in the strip. The edges 2 of the strip are folded back over the back b of the comb and held together by the fingers, by snap-fasteners or by stitching while the comb is in use.
Patent GB-1503927-A (GB)
Title: Electrical test clips
IPC: H01R11/24
Filed: 1975-08-14
Abstract: 1503927 Test probes CONTINENTAL SPECIALTIES CORP 14 Aug 1975 33948/75 Heading H2E A clip for connecting test leads to, e.g. dual-inline electronic packages has a core unit 11 comprising a pair of plates 16, 17 joined intermediate their ends by a deformable web 18, a plurality of resilient conducting strips 27 on the outer sides of one or both plates, and grooved covers 12, 13 holding the strips in place. The conductors are located longitudinally by enlargements 28 over part of their length which engage with co-operating recesses in respective grooves in the covers. In use the clip is opened from its resting position by squeezing the rear end until the stops 19 meet, is placed over the package to be tested and released allowing the teeth 30 to grip the package. The web 18 may take different forms (Figs. 8-12, not shown).
Patent GB-321568-A (GB)
Title: Improvements in portable refrigerating cabinets
IPC: F25D23/06
Filed: 1928-11-20
Abstract: 321,568. Partridge, W. H. Nov. 20, 1928. Nonconducting coverings for heat. - The cork insulation c of the base, sides, and ceiling of a portable refrigerator is lined with cement e reinforced with wire-netting or expanded metal d.
Patent GB-1358405-A (GB)
Title: Heat-sinsitive copy-sheet
IPC: B41M5/30
Filed: 1971-07-20
Abstract: 1358405 Thermographic materials MINNESOTA MINING & MFG CO 20 July 1971 34076/71 Heading G2C A thermographic material contains in one or two layers (i) a colour former which reacts with an organic acid on heating to produce a dye and (ii) an adduct or salt of the acid with an organic nitrogen-containing compound, the acid having pK between 1 and 5 and volatalising below 150‹C. If in two layers, the acid layer may contain free acid but at least 10% of the total amount of acid must be in the form of an adduct or salt. Also if in two layers, different binders are preferably used, e.g. vinyl chloride (vinyl acetate copolymer for (i) and cellulose nitrate or poly-vinyl pyrrolidine for (ii). The material may be selfsupporting if a binder is included but is preferably crated on a support. Specified colour formers are compounds of formula and N-[bis-(p-dimethylamine-phenyl)methyl]- morpholine. Specified acids are salicylic, naphthoic acid 5-chlorosalicyte and bis (trifluoromethylsulphonyl) methase. Specified nitrogen-containing compounds are diethanolamise, naphthylamise, dimethylarilise, methyl, benzylamine, diphenylguanidine, urea, imidazole and benzimidazole.
Patent GB-618998-A (GB)
Title: Oiler with flexible body
IPC: F16N3/06
Filed: 1946-11-18
Abstract: 618,998. Lubricating appliances. SINGER, H. R. Nov. 18, 1946, No. 34148. Convention date, Nov. 19, 1945. [Class 66] The delivery tube 4 of an oiler can be telescoped into the flexible body 1, e.g., of cellulose acetate, and held there by a screw-cap 7 which is secured by a clip 9 pivoted at 10 and by a plug 5 which is screwed into a bush 3. After unscrewing the cap 7 and plug 5 and pulling the tube 4 (with the plug 5) partway outwardly, the body 1 may be filled with oil through the gap between the tube 4 and the bush 3 after which the tube 4 is pulled fully out and a plug 6 screwed upwardly into the bush 3 for using the oiler. In a modification packing is provided in a stuffing-box about the tube 4.
Patent GB-632615-A (GB)
Title: Improvements in or relating to the supply of scavenging air to internal combustion engines
IPC: F02B37/10
Filed: 1947-12-24
Abstract: 632,615. Pumps. AKTIEBOLAGET GOTAVERKEN. Dec. 24, 1947, Nos. 34231 and 34232. Convention dates, Nov. 2, 1946, and Nov. 3, 1947. [Class 7 (ii)] The output of an exhaust-driven turbo-charging blower 1, 2 is augmented at starting and low speeds by a hydraulic pump 6 geared thereto and operating as a motor supplied with pressure liquid by a second pump 8 driven by an electric motor 9 or the engine itself. A non-return valve 13, or a similar valve in a by-pass passage round the motor 6 relieves back pressure when the exhaust pressure is sufficient to operate the turbo blower efficiently. As shown lubricant, used as the pressure liquid, is supplied by the pump 6 to the bearings of the turbo-blower and a pressure-relief valve 14 and non-return valves 13, 15 are placed in piping connected to the lubricant supply tank 11. The pump 8, when driven by the engine, may be the lubricant pump, the pressure in the lubricating system and that delivered to the motor being limited by pressure-relief valves.
Patent GB-481687-A (GB)
Title: An improved valve mechanism for internal combustion engines
IPC: F01L1/12
Filed: 1936-12-14
Abstract: 481,687. Valves; cylinder ports. FILTNESS, O. Dec. 14, 1936, No. 34250. [Classes 7 (ii) and 7 (vi)] The inlet and exhaust valves are arranged at the side of the cylinder with their stems extending from that side of the valve heads which faces the direction-of opening, and so that each valve seat faces the inside of the combustion chamber and is partly in line with the cylinder bore. The Figure shows one of the valves 3 so arranged, the stem 4 extending in the direction the valve opens, namely downwards, the head entering a recess 11 when fully open, so as to leave a clear passage for the gases. The valves may be actuated by pull-rods 14 connected to levers 15 engaging cams 7. Adjustable screwed connections may be provided between the valve stems and the rods 14.
Patent GB-1148799-A (GB)
Title: Device for the remote operation of two diesel engines
Inventor: ARENDT HEINZ
IPC: G05G13/00
Filed: 1967-07-26
Abstract: 1,148,799. Change-speed control. SCHWERMASCHINENBAU " KARL LIEBKNECHT " MAGDEBURG VEB. 26 July, 1967, No. 34370/67. Heading F2D. An arrangement for the remote separate and joint control of the gear-ratios of a pair of parallel reversible marine engines comprises a pair of sprocket wheels 7 operable by separate hand wheels 1 through planetary gear trains and secured to ratio-indicator drums 5 mounted on telescopic shafts 2, 3 carrying the hand wheels 1, the drums being capable of being locked together by a pin 16 for joint ratio control by either hand wheel. The planetary train for each selector comprises a sun pinion 6 rotatable with the hand wheel, a planet pinion 9 and a fixed annulus 8, the planet pinion being carried on a hollow pin 10 housing a spring plunger 13 engageable in a circumferential series of recesses in a fixed disc 14 corresponding to definite ratio settings. The locking pin 16 is carried by a sleeve 15 loaded by a spring 21 and axially movable by a pin 20 on a rotary shaft 18 with a control lever 19, and which bears against an inclined cam surface on the fork member 17.
Patent GB-1087828-A (GB)
Title: Steroidal derivatives
IPC: C07D333/22
Filed: 1965-08-11
Abstract: The invention comprises compounds of the general formula <FORM:1087828/C2/1> wherein R is a hydrogen atom or a methyl radical; R1 is a hydrogen atom or an alkyl radical containing less than seven carbon atoms; Z is a methylene, hydroxymethylene or carbonyl radical, X is a carbonyl, b -hydroxy-methylene, a  - alkyl - b  - hydroxymethylene, - a  - alkenylb  - hydroxymethylene, a  - alkynyl - b  - hydroxy - methylene, b  - alkanoyloxymethylene, a  - alkyl - b - alkanoyloxymethylene, a - alkenyl - b  - alkanoyloxymethylene, or an a - alkynyl - b  - alkanoyloxymethylene radical, or a radical of the partial general formula <FORM:1087828/C2/2> or a radica of the partial general formula <FORM:1087828/C2/3> wherein R11 is a hydrogen atom or a hydroxy or an alkanoyloxy radical and Y is a fluorine or hydrogen atom or an acetoxy radical and a process for the preparation of steroidal derivatives which comprises contacting a steroid, the A and B ring structure of which is represented by the partial general formula <FORM:1087828/C2/4> with a diazoalkane of the general formula R1CHN2, to afford a compound represented by the following partial general structural formula <FORM:1087828/C2/5> wherein R is a hydrogen atom or a methyl radical and R1 is a hydrogen atom or an alkyl radical containing less than 7 carbon atoms.
Patent GB-791755-A (GB)
Title: Process for the production of combustible gases from liquid hydrocarbons
Inventor: WEST HARRY LONGHURST
IPC: C10G9/00
Filed: 1954-11-26
Abstract: 791,755. Oil gas; purifying gas. ESSO RESEARCH & ENGINEERING CO. Oct. 25, 1955 [Nov. 26, 1954], No. 34428/54. Drawings to Specification. Class 55 (2). In a process for producing combustible gases containing hydrogen and C 1  and C 2  hydrocarbons, a hydrocarbon feedstock having a viscosity not less than 45 S.S.U. at 210‹ F. is contacted with a fluidized bed of coke-covered, finely divided particles in a coking zone and the resulting gaseous and vaporous products are treated to remove C 3  and higher hydrocarbons, the removed C 3  and higher hydrocarbons being recycled, preferably after being heated to 1000‹ F., to the coking zone. The C 3  and higher hydrocarbons may be removed by cooling and washing with C 6  or higher hydrocarbons at from 60‹ to 70‹ F. The hydrocarbon feedstock may be a petroleum hydrocarbon such as a reduced crude oil, still bottoms or a residual oil and preferably has a viscosity not less than 160 S.S.U. at 210‹ F. Coke-covered particles from the coking zone may be passed to and from a heating zone to maintain a coking zone temperature between 1450‹ and 2200‹ F., preferably between 1800 and 22000 ‹ F. The particles in the coking zone may be fluidized by means of C 1  to C 3  gaseous hydrocarbons, hydrogen, steam or carbon monoxide and the fluidizing gas may be preheated to a temperature of not less than 1000‹ F. The residence time of the hydrocarbon feedstock in the coking zone is usually from 0.1 to 2 seconds. Specification 791,754 is referred to.
Patent GB-1467803-A (GB)
Title: Air cushion vehicles
IPC: B60V1/00
Filed: 1973-07-19
Abstract: 1467803 Air cushion vehicles BRITISH HOVERCRAFT CORP Ltd 17 July 1974 [19 July 1973] 34462/73 Heading B7K A sidewall air cushion vehicle has the leading edge portion of each sidewall shaped and constructured to reduce lateral forces thereon during high speed forward motion wherein the inner face 16 of each sidewall at the forward end, when viewed in plan is substantially straight and parallel to the centre line of the vehicle body thereby facilitating the attachment of a transverse flexible skirt 14 and the outer face 17 is inclined by a curved or straight portion 20 to meet the face 16 at a leading edge 18. To reduce the asymmetric loading resulting from such profile a plurality of wedge shaped members 19 are mounted on the inclined portion 20 to break up the water flow. In an alternative embodiment the portion 20 and members 19 are formed as an integral moulding and orifices and ducts may be incorporated for the discharge of a flow-resistance-reducing medium.
Patent GB-483980-A (GB)
Title: Improvements in or relating to roller bearings for variable-pitch propellers, and a method of manufacturing same
IPC: B64C11/06
Filed: 1937-12-14
Abstract: 483,980. Screw propellers. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S. I. A. M. Dec. 14, 1937, No. 34586. Convention date, Oct. 15. [Class 114] [Also in Groups XXXIV and XXII] A needle roller bearing, for use between the helicoidal surface of the blade carrier and the thread on the blade root of a variable-pitch propeller, is made by piercing blind holes 25 in the periphery of a flat metal ring 24 which is then cut along planes y-y, z-z, to leave a central ring. This central ring is then divided into sectors and needle rollers 27 with one rounded end are inserted in the cells therein. The sectors are bent into helical shape and are laid end to end in position in the propeller root. One of the extremities of a series of sectors is supported by a spring. In a modification a series of grooves 31, Fig. 7, is milled in the perimeter of a stout metal tube 30 which is afterwards cut into rings. The resulting rings are then cut into segments.
Patent GB-1104724-A (GB)
Title: Improvements in or relating to processes for the preparation of 9ª‡-fluoro steroids
IPC: C07J75/00
Filed: 1965-08-12
Abstract: The invention comprises 3a ,20b -dihydroxy-9a  - fluoro - 5b  - pregnan - 11 - one, 3a ,11b , 20b  - trihydroxy - 9a  - fluoro - 5b - pregnane, 3a ,20b  - dihydroxy - 9a  - fluoro - 16a  - methyl-5b  - pregnan - 11 - one and a process for the preparation of a 9a -fluoro steroid in which an 11-keto steroid free from other ketonic functions is reacted with the anhydride of an aliphatic carboxylic acid having 2-7 carbon atoms to form the corresponding 11-enol ester, which is reacted with perchloryl fluoride to yield the corresponding 9a -fluoro-11-keto steroid. The 11-keto product may subsequently be reduced to form an 11b -hydroxy compound, e.g. by means of a mixed hydride.
Patent GB-899229-A (GB)
Title: Piston ring assembly
IPC: F16J9/06
Filed: 1959-10-13
Abstract: 899,229. Piston packing. GOETZEWERKE F. GOETZE A.G. Oct. 13, 1959 [Nov. 28, 1958], No. 34716/59. Class 122 (1). Piston packing comprises two sealing rings 2, 3, Fig. 1, which act independently of each other at all, or substantially all, points around the periphery and are pressed axially against the sides of the groove 5 and radially outwards by a helically-coiled spring 4 which has sufficient play in the axial direction to allow the spring to follow unequal radial movements of the rings without lifting from either ring. The rings may be of rectangular cross-section as shown in Fig. 1 with tapered faces to provide support for the spring 4 or they may be of circular crosssection with similarly tapered support faces. If desired, the rings may have tabs directed radially inwards for the support of the spring. In another form the spring may be of triangular cross-section as shown in Fig. 5. Axial play of the spring in the arrangement shown in Fig. 6 is determined by an additional ring 13 and recess 14 in the flank of the groove 5. If desired, the parts of the packing may be held together initially by an adhesive which subsequently dissolves away during operation. In an alternative construction, the two rings and the spring are formed from a single length of wire, the rings being bent from the two ends of the central helically-wound part.
Patent GB-784666-A (GB)
Title: Improvements in safety pins
IPC: A44B9/18
Filed: 1955-12-05
Abstract: 784,666. Safety pins. KYVON, R. DE. Dec. 5, 1955, No. 34820/55. Class. 43. A safety pin comprises a locking member pivotally mounted on the conventional head of the pin and turned back on to this head to mask the usual slot provided in the head to prevent inadvertent opening of the pin. The locking member, a plate 6, has an inwardly curved tab 7 at one end, which is passed through a slot 8 in the head 3 of a safety pin to form a pivot by means of which the plate can be turned over the head of the pin to cover the slot 4. The plate has an inwardly curved tab 9 at the free end, with notches 10, 11 which yieldingly engage the arms 1, 2 of the pin when the plate is in locking position. The tab 9 may also have an inwardly bent flange 12 which engages behind the end of the head 3 to lock the plate in position.
Patent GB-394654-A (GB)
Title: Improvements relating to the use of peat in plant cultivation
IPC: C05F11/04
Filed: 1931-12-17
Abstract: 394,654. Manures, insecticides, &c. DYCKERHOFF, E., Schloss Blumenau, near Wunstorf, Hanover, Germany. Dec. 17, 1931, No. 35002. [Class 111.] A material for promoting plant cultivation is made by compressing under a pressure of the order of 130-150 kg cm<2> a mixture of dry peat and fertilizing-material and/or other material which will promote plant cultivation, such as materials containing favourable soil bacteria or which promote the activity of the soil bacteria or materials for warding off or destroying harmful animal or vegetable action. The peat may be replaced wholly or in part by water-resisting peat, i.e. peat which has been treated so as to render it resistant to the absorption or emission of liquids or solutions, e.g. by heating to 120‹ C. as described in Specification 206,266, [Class 140, Waterproof &c. fabrics]. The water-resisting peat retards the emission of the fertilizing material &c. when the mixture is added to the soil. Alternatively the water-resisting peat may be added to the already compressed mixture of peat and fertilizing material &c. and the mixture then compressed again to such an extent only that the mixture will adhere. The materials may be mixed in the dry state, or the fertilizing material &c. may be dissolved in water prior to the admixture ; thus according to examples the peat may be stirred or sprayed with solutions containing (a) urea and ammonium sulphate, (b) leunasaltpeter, superphosphate and potassium salts and (c) ammonium sulphate, calcium arsenate and copper arsenate. The mixture may be compressed or rolled into briquettes, ovoids, sheets, &c. which may be suitably profiled or indented as shown for example in Fig. 2 to assist division, or the mixture may be prepared in the form of small bodies such as granules, small balls or flakes. German Specification 501,476 is referred to. The Provisional Specification refers to British Specification 339,067, [Class 64 (ii), Heating systems &c.].