baber/WOPTO huggingface dataset:
Patent GB-1234778-A (GB)
Title: Improvements in or relating to surfaces for reflecting microwave energy
Inventor: HERSCH WOLFGANG
IPC: H01Q19/19
Filed: 1967-08-22
Abstract: 1,234,778. Aerials. E.M.I. Ltd. 26 July, 1968 [22 Aug., 1967], No. 38619/67. Heading H4A. A reflector in a microwave aerial arrangement comprises a layer of ferrite material over a non-ferromagnetic reflecting surface. The magnetic condition of different parts of the layer may be selectively changed by commutating means to produce a scanning system, each part then becoming relatively reflective of microwave energy instead of transparent thereto. As described, a sub-reflector 3 of a Cassegrain type aerial system comprises a thin non-ferromagnetic metallic disc 7 having on the outer annular portion of its reflecting surface a ring 6 of ferrite material. A number of U-shaped electromagnets having cores 8 and energizing windings 9 are located behind the part of the disc 7 which is covered by the ring 6. The poles of each U-shaped magnet are aligned so that each magnet, when energizing current is fed to the respective winding, produces flux lines 11 (shown in Fig. 4) which are parallel to each other. All the windings 9 are coupled to an electrical commutating device 10 by which they are successively energized. Thus, an apparent distortion of the sub-reflector rim is produced, the motion of which leads to a conical scanning of the beam from the associated main reflector when the sub-reflector is illuminated by the aerial feed with waves which are linearly polarized, with their H-vectors perpendicular to the flux lines 11. The ferrite ring 6 may be coated with a quarter-wave thick layer of dielectric material 12 having a dielectric constant approximating to the geometric mean of those of the ferrite material and of the air, to reduce mismatch when the ferrite is transparent to the radio wave. In another embodiment (Fig. 6, not shown) different sectors of the ferrite ring are arranged to be selectively magnetized by means of rod-type electromagnets which each have a single pole adjacent the rear surface of the sub-reflector. Thus, the electromagnets produce a magnetic field normal to the surface of the sub-reflector, and the arrangement may be used with linearly polarized radiation of any direction of H-vector, or with circularly polarized radiation.
Patent GB-1398941-A (GB)
Title: Adjustable bearing mounting assemblies
IPC: F16H57/021
Filed: 1973-08-16
Abstract: 1398941 Spanners GENERAL MOTORS CORP 16 Aug 1973 [16 Oct 1972] 38681/73 Heading B3N [Also in Division F2] A key 52 is adapted for use with an adjustable bearing mounting assembly comprising a carrier 10, a rotor 16, a pair of bearing means 22, 24, one of which 22 is a rolling bearing with its outer race 36 supported by a bearing block 26 and having on its outer diameter a series of serrations 42 and on its radial face a plurality of axially rising ramps 32. A spacer element 30 has similar serrations 34 and ramps 40 to provide an adjustable axial location for the rotor 16 against the second bearing means 24. The key 52 provides rotation of the spacer 30. A semicircular bearing cap 27 deforms a locking strip 43 into the serrations 42, 34 to maintain the adjusted position. The assembly may have a similar adjustment for the second bearing means 24.
Patent GB-344558-A (GB)
IPC: C09B5/04
Filed: 1929-12-17
Abstract: Vat dyestuffs of the pyrazolanthrone-acridone series are manufactured by first condensing pyrazolanthrone or 1 : 5-dipyrazolanthrone with an o-halogenaldehyde of the benzene, naphthalene or anthraquinone series, and treating the product so obtained with an alkaline condensing agent.  In examples, the method is applied to the condensation products of (1) pyrazolanthrone and o-chlorobenzaldehyde; (2) 1 : 5-dipyrazolanthrone and o-chlorobenzaldehyde; (3) pyrazolanthrone and 2 : 5-dichloroterephthalaldehyde, using in each case caustic potash and alcohol as the alkaline condensing agent; the products dye cotton yellowish-orange, olive-green and yellowish-brown shades, respectively.  2-Chloro-1-naphthaldehyde and 1-chloroanthraquinone-2-aldehyde are also specified as parent materials.  Specifications 298,775, and 332,316, [both in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) states that the process may be applied to nuclear substitution products of pyrazolanthrone or 1 : 5-dipyrazolanthrone.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1106583-A (GB)
Title: Current inverters
IPC: H02M1/06
Filed: 1966-08-30
Abstract: 1,106,583. Converting; control of A.C. motors. SIEMENS-SCHUCKERTWERK, A.G. 30 Aug., 1966 [28 Aug. 1965], No. 38715/66. Headings H2F and H2J. An inverter comprising main controlled rectifiers 4 to 9 supplies a polyphase motor 2. The main elements are turned off by commutating capacitors 10, 11, 12 and auxiliary controlled rectifiers 13 to 18. The arrangement is such that when a main controlled rectifier has been turned off one capacitor and the portion of the motor winding then in series with that capacitor form an oscillatory circuit which turns off the corresponding auxiliary controlled rectifier. The commutating capacitors also provide the reactive power required by the motor. The inverter may be supplied from a halfcontrolled rectifier bridge using gate turn off switches 23, 24, 25 and diodes 26, 27, 28 so that the arrangement becomes a frequency changer.
Patent GB-1125985-A (GB)
Title: Improvements in anti-corrosive coatings
IPC: C09D5/08
Filed: 1966-09-01
Abstract: 1,125,985. Modifying metallic surfaces. W. GLASER. June 21, 1967 [Sept. 1, 1966], No. 38963/66. Heading C7U. A metal e.g. steel surface is treated with a phosphoric acid ester together with a metal peroxide and Pb 3 O 4 . The ester may also include dimethyl phthalate or tricresyl phosphate. The mix may include MnO 2 , Fe 2 O 3 , Fe 3 O 4 , Fe 2 O 3 , H 2 O, TiO 2 , and lead and zinc chromate. Where anti-fouling is also required copper, copper oxides, mercury and mercuric oxides may be added. The film may be heated e. g. by frictional heat produced by rotating steel brushes.
Patent GB-836945-A (GB)
Title: Self-priming centrifugal pump
Inventor: PAASHAUS ROBERT FREDERICK
IPC: F04D9/02
Filed: 1957-12-16
Abstract: 836,945. Centrifugal pumps. WORTHING- TON CORPORATION. Dec. 16, 1957, No. 39003/57. Class 110 (1). A self-priming centrifugal pump comprises a separating chamber connected to the pump casing to receive fluid from the discharge, and a tube extending into the casing to recirculate fluid from the separating chamber to the casing, the tube being of such length that the leading and trailing edges of the end of the tube have a close clearance with the outer periphery of the impeller. In the centrifugal pump shown, the pumped liquid is discharged through an outlet 75 into a separating chamber 78, where entrained air separates out from the liquid. During priming, liquid freed from air is recirculated from the separating chamber 78 back into the pump volute 73 through a tube 80 which has a threaded portion by which it is screwed into the volute. The pump is assembled with an impeller 74 of the diameter necessary to give the required pump duty, and the tube 80 is screwed into the volute 73 until the leading and trailing edges of its slanted end have a close clearance with the impeller periphery. The tube 80 is held in adjusted position by a key 81. The tube 80 may instead be integral with the volute and cut to the length required to suit the size of impeller used. As a further alternative, the tube may be carried by a flange which is interposed between the mating flanges 76, 79a of the volute and separating chamber. If the impeller is changed for one of different diameter, the tube can be replaced by another flanged tube of appropriate length.
Patent GB-1294084-A (GB)
Title: Improvements in or relating to liquefied gas storage systems
Inventor: MACCORMAC MICHAEL
IPC: F17C9/04
Filed: 1968-08-16
Abstract: 1294084 Gas storage installations GAS COUNCIL 12 Nov 1969 [16 Aug 1968] 39360/68 Heading F4P In a liquefied gas storage installation a heat storage liquid is used to both partly liquefy incoming gas and evaporate liquid gas leaving the store. In one embodiment, Fig. 1, the installation comprises a heat exchanger 25 and storage tanks 22 and 24 for the liquefied natural gas 21 and the storage liquid 23, respectively. Natural gas from a main 26 is passed through a purifier 33 and line 32 to the exchanger 25 wherein it is partially liquefied by counter current heat exchange with the storage liquid 23, it is then expanded in line 27 and passed to store. A pump 37 passes the liquid 23 from the bottom of tank 24 through the exchanger, and the relatively hot liquid returned to the top of tank 24 via line 36. The liquid gas leaves tank 22 via line 28, and is pumped through the heat exchanger wherein it is partly vaporized by a counter current flow of the now relatively hot liquid 23. The gas is then passed via line 30 to a heater 31 to raise the temperature to ambient before passing to the mains, and the cooled storage liquid is returned to tank 24. Vapour from tank 22 is also passed through the exchanger and the cold energy transferred to the storage liquid. In another embodiment, Fig. 2, two storage tanks are provided for the heat storage liquid. Liquid from the first tank 41 is used to cool the incoming gas, the resulting heated liquid being passed to the second tank 42 to be used to revaporize the leaving liquid gas. The cold liquid resulting from this latter exchange being passed back into the first tank. The first tank may be situated in the liquefied gas storage tank (Fig. 3, not shown). In a further embodiment (Fig. 5, not shown) another heat exchanger is situated in the circuit to aid the revaporization.
Patent GB-1367705-A (GB)
Title: Audio reproduction systems
IPC: H04S3/02
Filed: 1971-08-23
Abstract: 1367705 Four channel stereophonic systems DYNACO Inc 23 Aug 1971 [10 June 1971] 39514/71 Heading H4R In a four or more loud-speaker, two amplifier, stereophonic system in which two loud-speakers, arranged one each side at the front of a listening area, are fed with signals from the respective amplifiers, or the signal from the respective amplifier combined with a fraction of the signal from the other amplifier, the two loud-speakers arranged one each side at the rear of a listening area are each supplied with a signal from the respective amplifier which has subtracted from it a fraction of the signal from the other amplifier. As shown in Fig. 1, front loud-speakers 21, 22 are fed from respective L and R signals from a stereophonic source 11. The rear speakers 23, 24, each have a first terminal connected to receive the respective L and R signals from the source and their second terminals interconnected by a resistance pad 28 which adds a portion, either 25 or 50%, of the other channel, in antiphase to the signal applied to their first terminal. In order to provide greater presence to the sound in the front of the listening areas a matrix (37, 38, 40), Fig. 2 (not shown), can be provided to positively blend the L and R signals at the input to the amplifiers 12 and 13. A similar effect is provided by a fifth loud-speaker (41) connected in place of resistor 29 in the rear speaker coupling network 28 and arranged in the centre front of the listening area, Fig. 3 (not shown), alternatively the fifth speaker could be arranged to give monophonic reproduction in a separate listening area, Fig. 4 (not shown). In place of the resistive combining network 28 of the arrangements described above auto transformer may be used to combine the signals. In auto transformer arrangements described, positive blending of signals in the front speakers and negative bending of speakers in the rear speakers is provided in the arrangement of Fig. 5 (not shown) while a system giving just negative blending of the signal, in rear speakers is described with respect to Fig. 6 (not shown). Also described in an arrangement, Fig. 8 (not shown), for deriving the L and R channel signals from microphones placed at the corners of the source hall. The outputs of the microphones are combined first to simulate microphones placed at the centres of the front, back, and sides, of the source hall and then matrixed to apply the four resulting signals on two channels L and R so that, on reproduction by apparatus according to Figs. 2 or 5, each loud-speaker reproduces signals arising predominantly from the corresponding microphone with some signal from the two adjacent microphones, and no signal arising from the diagonally opposite microphone. The matrixing may employ cross feed of 50%, or, to provide reduced signals from the rear speakers, a cross feed of less than 50%, preferably 26À8%.
Patent GB-1080807-A (GB)
Title: Heterocyclic amino-isobutyl compounds
IPC: C07D239/04
Filed: 1965-01-25
Abstract: The invention comprises compounds of formula <FORM:1080807/C2/1> in which R is hydrogen or a C1-C5 alkyl group, R1 is hydrogen or a C1-C5 alkyl group, Y is NH2, n is 0 or 1 and R2 is a hydrocarbon radical containing from 1 to 25 carbon atoms, or the group <FORM:1080807/C2/2> The compounds may be produced by reacting from 2 to 3 moles of formaldehyde and from 1 to 2 moles of 2-nitropropane with one mole of an amine of formula <FORM:1080807/C2/3> in which R3 is hydrogen or a hydrocarbon radical having from 1 to 25 carbon atoms or, when R2 in the product is the Group (II), R3 is hydrogen, for 0.5 to 8 hours at a temperature up to 150 DEG  C. and catalytically hydrogenating the product. Examples are given of the preparation of 1,3-bis-(2-aminoisobutyl) imidazolid using ethylene diamine as the starting amine.  Other amines which may be used as starting materials are, for example, 1,2-propanediamine, 1,3 - propanediamine, 1,2-butanediamine, N1 - isopropyl - 2 - methyl-1,2 - propanediamine, N1 - cyclohexyl - 2 - methyl - 1,2 - propanediamine and N1-phenylethylenediamine.
Patent GB-1397799-A (GB)
Title: Treating of a workpiece to be weld-clad
IPC: B23K9/235
Filed: 1972-08-25
Abstract: 1397799 Decarburizing metal surface for cladding SIEMENS AG 25 Aug 1972 [25 Aug 1971] 39866/72 Heading C7D A metal surface is decarburized, preferably to a depth of 1-5 mm, before cladding by welding. Treatment may be carried out by gas carburization or by coating with a suitable paste and heating the temperature in either case not exceeding 1000C and preferably being 800-900C. The process is applied particularly to cladding steel with austenitic stainless steel or with a highly alloyed wear resistant material, for use in nuclear reactor engineering, chemical engineering or machine  construction suitable gases are nitrogen-hydrogen, hydrogen-argon, or hydrogen-carbon dioxidecarbon monoxide, while to decarburize steel from 0.2 to 0.06% to a depth of 3 mm. a suitable treatment is 5 hours at 900C.
Patent GB-1004438-A (GB)
Title: Improvements relating to fruit cleaning and/or polishing machines
IPC: A23N12/00
Filed: 1962-10-22
Abstract: 1,004,438. Cleaning fruit. B. ZAVALLONI. Jan. 16, 1964 [Oct. 22, 1962; April 23, 1963], Nos. 39967/62 and 16016/63. Heading A4C. A fruit cleaning and/or polishing machine, e.g. for apples, oranges or peaches, comprises a feed bed composed of helically grooved 6a feed rollers 6 mounted side-by-side and arranged to pass fruit therealong in an axial direction for treatment by overlying transverse roller brushes or polishes 21 rotatably mounted above the feed bed. Fruit is fed from a tray 8 to be carried by the rollers 6 to be dried beneath blowers 37, 38 prior to passage beneath the adjustably mounted brushes 21 and discharge to a tray 20. The transversely arranged brushes 21 are simultaneously adjusted in height by a lever 28 and are rotated in the direction indicated by a motor 19 which also rotates the feed rollers 6 in the same direction. The rollers 6 may be clad with a friction material such as bristle and are cleaned by longitudinally arranged scrapers. Additionally feed rollers may be located above the rollers 6 at the input end to aid initial propulsion of fruit. Preferred dimensions associated with the rollers 6 and brushes 21 are given.
Patent GB-1009657-A (GB)
Title: Inspection arrangement for vacuum installations
IPC: C23C14/52
Filed: 1963-10-10
Abstract: 1,009,657. Observation window for vacuum chambers. W. C. HERAEUS G.m.b.H. and DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. Oct. 10, 1963 [Nov. 7, 1962], No. 400l9/63. Heading F1X. [Also in Division F4] In an inspection arrangement for vacuum installations a vacuum-tight inspection port 2 in wall 1 has a movable transparent panel 6 e.g. of glass, disposed in front of the port inside the chamber and a rotor or oscillator 9 having an aperture 10 is disposed on the side of the panel remote from the port. A motor 12 rotates the rotor 9 so that at least 20 images per second can be seen through telescope 4. The panel 6 clouds over only when the aperture 10 uncovers it, the remainder of the panel being covered by a fixed shield 8, an arm 7 being rotated to bring clear sections of the panel 6 into operation. In modifications, the motor 12 and an electromagnetically driven toothed-wheel drive for the panel 6 may be arranged entirely within the chamber or the rotor may be replaced by a reciprocating disc-shaped segment.
Patent GB-1115068-A (GB)
Title: Coil former for incorporation in an electrical moving coil measuring instrument
IPC: G01R5/04
Filed: 1965-09-22
Abstract: 1,115,068. Moving coil meters. SAUSER, A. G. Sept. 22,1965 [Sept. 29, 1964], No. 40422/65. Heading G1Q. The coil of a moving coil meter is wound on a rectangular metal former with recessed sides so that members movable with the coil - such as the pointer 15, an anchor member 16 for the control spring and bearing pins 19- can be accommodated within the recesses and held in position by the coil windings 22. The former 11 consists of a length of tubing which has been pressed into rectangular shape and the recesses 13 for the pointer and spring anchors are annular recesses surrounding, preferably concentrically, the recesses 20 for the bearing pins.
Patent GB-1273087-A (GB)
Title: Fluid applicator apparatus
IPC: B05C5/00
Filed: 1970-08-21
Abstract: 1,273,087. Coating-apparatus. ACUMETER LABORATORIES Inc. 21 Aug., 1970 [5 Jan., 1970], No. 40449/70. Heading B2L. Apparatus for coating a substrate comprises a reservoir 6 for coating medium, a pump 6 for pumping the medium from the reservoir through a distribution member having a value 2' movable between two positions to open and block fluid communication between inlet position 9 and an outlet position 11 and thence to a nozzle member 13, the nozzle 13 having an inlet passage 11 and an outlet passage 30 and an intermediate passage 13", the intermediate and outlet passages being wider in the transverse direction than the inlet passage and the intermediate passage 13" providing an expansion chamber. The valve 2' has an opening 14 which connects the fluid supply line 4' with either the outlet 11 or return pipe 4" and is moved between these positions by a piston and cylinder 16 controlled by a valve (not shown) in the substrate feed mechanism. The dimension of the slit in the application nozzle is also varied by a rotatable screw drive 30' from the substrate feed mechanism in order to produce an even coating.
Patent GB-1161237-A (GB)
Title: Improvements in or relating to Indicating Instruments
IPC: G01D13/26
Filed: 1966-09-09
Abstract: 1,161,237. Indicating-apparatus. PARKER INSTRUMENT CORP. Sept. 9, 1966, No.40474/66. Heading G1J. In an indicating meter having a rotor disc 24, with a pointer 17, limit sensing devices are provided comprising vanes 44 extending from the periphery of the disc which pass through slots 47 in photo-sensing devices 46 so as to interrupt a light beam from a lamp to the photocell. The position of the photo-sensing devices and therefore the limit positions may be changed by moving pointers 54,57. In one embodiment two separate vanes 44 are provided so as to pass a signal when the beam of light is interrupted but in another embodiment one continuous vane is provided half way round the disc which passes a signal when the beam is no longer interrupted. In the embodiment shown in Fig. 9 (not shown) the photo-sensing devices are rotated for adjustment by knobs 126,129 through gears 112,117.
Patent GB-1325056-A (GB)
Title: Phenyl-cyclohexane carboxylic acids and derivatives thereof
IPC: C07C39/23
Filed: 1970-08-24
Abstract: 1325056 Phenylcyclohexane carboxylic acid derivatives BRISTOL-MYERS CO 24 Aug 1970 [22 Aug 1969 4 May 1970] 40679/70 Heading C2C Novel compounds XIV and XV wherein R is OH, 1-12C alkyl, trihalomethyl, 3-10C cycloalkyl, or OR<SP>3</SP> ; R<SP>3</SP> is 1-12C alkyl, 1-12C aminoalkyl, 1-12C alkanoyl, or 3-10C cycloalkyl; R<SP>1</SP> is 1-12C alkyl; Z is COOR<SP>2</SP> or R<SP>4</SP>; R<SP>2</SP> is H, 1-12C alkyl, or 1-12C aminoalkyl; R<SP>4</SP> is -CHO, tetrazolyl, or CH 2 OR<SP>5</SP>; R<SP>5</SP> is H or -COR<SP>6</SP>; and R<SP>6</SP> is 1-12C alkyl are prepared by reacting compounds I with compounds II in which Ar is R substituted phenyl and Hal is halo, or with compounds III to give compounds IV dehydrating compounds IV to give compounds V optionally hydrogenating compounds V to give compounds VI and epimerizing the so-produced 1, 2-cis isomers to the 1,2-trans isomers by esterification, refluxing the esters with anhydrous base and hydrolysing the esters to give compounds VII. If desired the compounds so produced may be conventionally modified to give other products XIV and XV. cis - Ethyl - 2 - methyl - 4 - oxo - cyclohexanecarboxylate is prepared by hydrogenation of 4- carbethoxy - 3 - methyl - 2 - oyclohexen - 1- one. cis - 2 - Methyl - 4 - oxo - cyclohexanecarboxylic acid is prepared by hydrolysis of the former intermediate. Pharmaceutical compositions comprise one of the novel compounds XIV or XIV together with a suitable excipient and are used in treatment of prostate hypertrophy and hypercholesterolemia.
Patent GB-1531412-A (GB)
Title: Coagulation process
IPC: C07K1/30
Filed: 1976-09-30
Abstract: 1531412 Coagulating proteins BP CHEMICALS Ltd 30 Sept 1976 [6 Oct 1975] 40821/75 Heading C3H A process for coagulating protein present in a protein-containing liquid comprises adding an ionene polymer to the liquid and separating the coagulated protein formed thereby. By an ionene polymer is meant throughout this Specification a polymer having positively charged nitrogen atoms in its main polymer chain. They may be represented as polymers or copolymers having the following structural unit in their main polymer chain: in which the R radicals, which may be the same or different, represent monovalent organic groups and X and Y represent divalent organic groups which make up part of the main polymer chain. The anionic part of the polymer (not shown in the above representation) can be, for example, halide or other inorganic or organic anions. In preferred polyionenes the R groups are lower alkyl groups having from 1 to 6 carbon atoms and the X and Y groups are alkylene groups having from 1-6 carbon atoms. The juice employed in the present invention can be any protein-containing liquid, for example, such liquid derived from vegetable, animal or fermentation sources. Examples of suitable liquids are those obtained by crushing and pressing grass, lucerne or other green crops. The polyionene employed may be the product of reacting a tetra substituted diamine with an organic dihalide, e.g. the diamine N,N,N<SP>1</SP>,N<SP>1</SP>- tetra-methyl ethylene diamine and the organic dihalide hexane-1, 6-dibromide or 1,4-dichlorobutene-2. Preferably the protein-containing liquid is heated in the presence of the ionene polymer.