baber/WOPTO huggingface dataset:
Patent GB-652655-A (GB)
Title: Improvements in or relating to lapping machines
IPC: B24B53/017
Filed: 1948-04-16
Abstract: 652,655. Lapping. STEVENS, A. H. (Crane Packing Co.). April 16, 1948, No. 10606. [Class 60] Apparatus for forming a surface of predetermined contour upon one or more articles comprises a lap 1, means for holding the article or articles on the lap, means for establishing relative movement between the article or articles and the lap and means for preserving the contour of the lap which means comprises a ring 61 adapted to wear the surface of the lap and a support to allow the ring to rotate freely relative to the lap surface. The articles are received in holes in a plate 62, Fig. 3, free to rotate on the pointed end of a spindle 56 and are subjected to pressure by a plate 66 which may have previously been lapped to the same contour as the lap. A layer of felt 65 is interposed between the plate 65 and the articles. The plate 62 is surrounded by the ring 61 which is rotatively connected with the spindle 56. The latter supports a pulley 57 connected with those on the spindles for other similar work holders by a belt 77, Fig. 2. If all of the pulleys 57 are of the same diameter the wear rings will rotate at the same speed as'the lap, while if certain of the pulleys are reduced in diameter or if one of the pulleys is enlarged, the wear rings will rotate at a slower speed than the lap. The wear rings drive the plates 62. The spindles 57 are adjustably secured in slots in a framework of members 48, 49, 50 and by regulating the position of the spindles together with their wear rings .relative to the inner and outer edges of the lap the surface of the latter may be maintained at, or formed to, the desired contour. The member 48 is bolted to tubers 39 which are externally threaded, provided with nuts 42 and slide in tubes 40. Each tube 39 is provided with a number of holes 43 one of which is brought into alignment with a hole in the corresponding tube 40, a bar 46 then being inserted in the aligned holes and the nut 42 tightened when the member 48 is at the desired height. The lap is driven at about 50 r.pm. by a motor 10 through a reduction drive and is provided with an annular trough 25 mounted on adjustable supports 29. Oil-borne abrasive from an agitated vessel 78 is fed to the lap by a wire 80. Radial grooves 34, 35 then collect and discharge it to the trough where the abrasive settles out and the oil is drained off through an adjustable pipe 31 to a tank 33. Work tables 16, 17 are mounted on adjustable supports 19. The lap and the wear rings may be of cast iron. The lap surface may be dressed by a single wear ring of considerable weight, e.g: 250 pounds, which has an external diameter in excess of the radial width of the lap.
Patent GB-902373-A (GB)
Title: Steroids and preparation thereof
IPC: C12P33/00
Filed: 1960-03-25
Abstract: The invention comprises (1) a process for preparing steroids of the formula <FORM:0902373/IV (b)/1> (wherein R1 is hydrogen or methyl, R2 is hydrogen, fluorine, chlorine or methyl, R3 is hydrogen or hydroxyl, R4 is hydrogen, a -fluorine, a - or b -methyl, methylene, a -hydroxyl or acylated a -hydroxyl, at least three of R1, R2, R3 and R4 being hydrogen in a specific compound, and R5 is hydrogen, X is hydrogen, halogen, methoxy or ethoxy, and Y is keto or b -hydroxyl) which comprises reducing the corresponding 17-pyruvoyl compounds with a yeast of the genus Saccharomyces or an alkali metal hydride, and, if desired, converting the product to an acylate or 16, 17-acetonide thereof; and (2) 21-acylates of all the steroids of the above formula and 21-hydroxy steroids of the above formula when R2 is chlorine. The acyl group or groups contain only carbon, hydrogen and oxygen and are derived from mono- or di-carboxylic acids containing at most 10 carbon atoms, and those containing a free carboxyl group may be converted to alkali or alkaline earth metal salts.  The reduction is preferably conducted with S. cerevisiae or with a borohydride or alkoxy borohydride, desirably used in about an equimolecular proportion to the steroid, although if methanol is used as solvent up to 2.8 molar equivalents may be used.  Reduction products may be mono- or di-acylated or converted into 16,17-acetonides by standard procedures, or separated into 21-epimeric forms.  Examples are given and a list of suitable esterifying acids and aldehydes and ketones for the preparation of acetonides is provided.  21-Methyl - D 4 - pregnadiene-11b ,17a ,21-triol-3,20-dione is prepared by reacting cortisol with cupric acetate to give the 21-aldehyde, treating this with diazomethane to give the 21,22-epoxide, treating this with hydrogen chloride to give 21-chloromethyl-cortisol and warming this with bismuth trioxide.  The above 21-hydroxy-21-methyl steroids and their 21-acylates, which are stated to have adrenocortical activity, may be formulated as pharmaceutical compositions in admixture with suitable carriers.  Specification 870,390 is referred to.
Patent GB-106826-A (GB)
IPC: H02J7/22
Abstract: 106,826. Maschinenfabrik Oerlikon. May 25, 1916, [Convention date]. Lighting systems; regulation, automatic systems and apparatus for; systems of charging galvanic batteries.-In lighting and heating systems for vehicles employing a differentially compounded generator 1 and a battery 4, electromagnetic relays 7, 8, 9 are used to cut resistances 46, 47, 48 in or out of the shunt field circuit to regulate the generator output. These resistances are normally short-circuited by the relay switch arms. When the vehicle is at rest, the battery supplies the load 5 through the contacts 11, 12 of a generator cut-in switch 6, a compensating resistance 18, and relay coil 40 being short-circuited; the switch arm of the cut-in switch 6 is pulled to its lower position by a spring 20, and is adapted to move a switch arm 57 through tappets 54, 55, the arm being over the contact 16 with the vehicle at rest. As the generator is driven at increasing speed, the voltage coil 22 on the switch 6 finally becomes sufficiently strong to overcome the spring 20 and move the contact 11 on to the contact 13, and the switch arm 57 on to the contact 14. The resistance 52 is now included in the circuit of the voltage coil 22, the resistance 18 for compensating between the battery charging and discharging voltage and the series coil 40 on the overcharge switch 10 are included in the load circuit, and the battery is connected to the generator through the hold-on coil 21 of the switch 6. As the speed still rises, the resistances 46, 47, 48 are cut into the circuit in sequence; if the resistance 48 is sufficiently large, its insertion in the circuit causes the cutting-out of the resistances 46, 47, which may thereafter be used as further steps in the control of the field, the complete sequence being 46, 47, 48, 46, 47. The relay 7, when it has cut in the resistance 46, places a coil 38 on the relay 8 in parallel with the resistance 46; the relay 8 controls similarly a coil 39 on the relay 9. The battery overcharge preventing relay 40 has a voltage coil 41 with resistances 50, 51 in series, when the battery and generator are not connected. When the cut-in switch closes, the resistance 51 is short-circuited by the arm 57 and contact 14; on completion of charge, the relay arm opens the short circuit around the resistance 49, which is then in series with the shunt field, and at the same time connects the shunt field in parallel with the resistance 50 to ensure that the coil 41 keeps the resistance 49 in the field circuit until the dynamo speed falls to a predetermined minimum. The resistance relays, overcharge-preventer, and cut-in switch are combined in one apparatus and are connected to the load generator and battery through the terminals L, B, E, D, N.
Patent GB-696317-A (GB)
Title: Improvements in and relating to combination seat and table means
IPC: A47C7/42
Filed: 1951-05-07
Abstract: 696,317. Tables with seats. MONCKTON, W. J. B. May 7, 1951 [May 11, 1950; June 16, 1950], No. 10713/51. Classes 52(iii) and 52(v) A table 7 is provided with seats 13 solely supported by radial arms 15 pivoting horizontally about the table legs 8, 9, each seat having a foldable back-rest 18. The seats are pivoted on the ends of the arms and the latter may be telescopically adjustable.
Patent GB-1187355-A (GB)
Title: Improvements in Electrically Driven Sliding Panel Assemblies
IPC: B60J7/057
Filed: 1968-03-05
Abstract: 1,187,355. Couplings between relatively movable conducting parts. REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT. 5 March, 1968 [5 April, 1967], No. 10729/68. Heading H2E. Current is supplied to a motor (not shown), mounted on and driving the sliding-roof panel 4 of an automotive vehicle, by two or more pivoted collector-shoes 1 resiliently urged against current supply slide-bars 7 forming part of a fitting 8 secured to the fixed roof structure 12 of the vehicle. The collector shoes are pivoted on pins 2 housed in straps 3 carried by the panel, and are urged by hairpin springs 6 against the slide-bars 7. The slide-bars consist of spaced parallel metal strips secured to an insulating plate (11) firmly held in a metal frame 8 by the doubled-over edges (10) of the frame.
Patent GB-698134-A (GB)
Title: Improvements in or relating to electrical frequency converter arrangements or systems
IPC: H02K47/28
Filed: 1951-05-08
Abstract: 698,134. Frequency changers. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., and WOODS, J. V. May 6, 1952 [May 8, 1951], No. 10808/51. Class 35. A converter 6, 7 which converts current applied to its slip-rings 4 at one frequency to current at another frequency at its commutator, is driven by a pony motor 5 whose stator carries an additional winding 3 inductively linked to its normal stator winding 2 and serving to supply the slip-rings 4 by transformer action with current of the same or a different number of phases. In the form shown the stator 7 is unwound, the pony motor is a simple squirrel-cage motor fed through isolating switches and overload cut-outs 1, but in a modification, it may have a wound rotor connected through slip-rings to a speed-regulating resistance. In a further modification, the pony motor is a three-phase shunt stator-fed commutator machine whose brushes are connected back to the line through an induction regulator for speed control. Alternatively the motor brushes may be connected to the converter slip-ring brushes and both connected to the winding 3, the voltage of which may be bucked or boosted by an induction regulator. By this means simultaneous control of voltage and frequency is obtained.
Patent GB-1040740-A (GB)
Title: Azepine derivatives and process for their production
IPC: C07D223/28
Filed: 1965-03-15
Abstract: The invention comprises compounds of the formula <FORM:1040740/C2/1> wherein X represents an ethylene or vinylene group optionally substituted by a methyl group if Y is hydrogen, Y represents a hydrogen or chlorine atom or a C1- 5 alkoxy, C1- 3 alkylthio or C2- 8 dialkylsulphamoyl group, A represents a straight or brached chain C2- 4 alkylene group, at least 2 carbon atoms of which are between the nitrogen atoms, R1 represents the methyl group or <FORM:1040740/C2/2> represents a C-piperidinylalkyl group having 1 or 2 carbon atoms in the alkyl radical, and R2 represents a hydrogen atom or the acyl radical of an aliphatic or non-condensed aromatic mono- or di-carboxylic acid having at most 10 carbon atoms; and acid addition salts thereof.  When R2 represents an acyl radical it may represent, for example, an acetyl, propionyl, n-butyryl, isobutyryl, valeryl, isovaleryl, 2-methylbutyryl, pivaloyl, 3-carboxy-propionyl, benzoyl, mono-, di- or tri-methylbenzoyl or o-carboxy-benzoyl radical.  The compounds are prepared by reacting, in an inert solvent, an amine of the formula <FORM:1040740/C2/3> with an acyl peroxide to form an N-acyloxy compound of the formula <FORM:1040740/C2/4> wherein R21 has the meanings of R2 except hydrogen and, if desired, solvolysing the N-acyloxy compounds obtained and, if desired, converting the compounds obtained from Formula I, wherein R2 is hydrogen, with a carboxylic acid chloride or anhydride, into an O-acyl derivative of Formula I.  Pharmaceutical compositions, which antagonise the action of reserpine and tetrabenazine and potentiate that of noradrenaline, for peroral, rectal or parenteral administration, comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-852143-A (GB)
Title: Method of producing a metal or alloy article
IPC: C22B9/16
Filed: 1958-04-03
Abstract: 852,143. Crucible furnaces. CENTRE TECHNIQUE DES INDUSTRIES DE LA FONDERIE. April 3, 1958 [April 10, 1957], No..10897/58. Class 51 (2). Metal or an alloy is introduced into a crucible furnace in the form of an ingot having substantially the form and dimensions of the crucible. The ingot may be coated with a salt having a melting point lower than that of the metal concerned.
Patent GB-917744-A (GB)
Title: Electrical connector
Inventor: COLE JUDSON CHARLES
IPC: H01R12/70
Filed: 1961-03-24
Abstract: 917,744. Two-part couplings. BENDIX CORPORATION. March 24, 1961, No. 10911/61. Class 38 (1). A multi-contact separable electric coupling for flat multi-core cables 10<SP>1</SP> and 10 comprises a pair of cooperating insulating plates 36, 17, each having mounted therein a plurality of like laterally-spaced resilient electrically conductive contact members ; alternate contact members on each plate being invertedly mounted so that their contact portions 41 and 19 are inclined to opposite sides of the central plane of the plates and the embedded portions of successive contact members 40 and 22 emerge at opposite broad surfaces of their respective plate, for the soldering thereto of the cable conductors 11<SP>1</SP> and 11. Resilient insulating sheaths 43 and 25 enclose the plates 36 and 17, respectively, the latter having an extension member 30 formed with partitions 31 for separating the contact members, and are enclosed, in turn, by metal shells 54 and 32, formed with locating projections and notches 59 and 56, and with flanges 55, 35 for holding the two parts of the coupling in operative engagement. The ends of the sheaths 46, 27 are squeezed about the cable ends by narrowing portions 52 and 34. The ends of the contact members may be turned over at 42 and 24 for easier co-operation thereof.
Patent GB-140245-A (GB)
Title: Improvements in doors
IPC: E06B5/16
Filed: 1919-05-02
Abstract: 140,245. Bell's United Asbestos Co., Hurden, E., and Cann, J. A. May 2, 1919. Fire-resisting doors. - Doors are constructed from a sheet C of cement asbestos of the full size of the door, and styles B and rails A fastened thereto on each side by pins &c. The door resists the spread of fire.
Patent GB-146545-A (GB)
Title: Navigation machine for determination of position from astronomical observations
IPC: G01C21/02
Filed: 1917-07-31
Abstract: 146,545. Baker, T. Y. July 31, 1917. Latitude instruments.-Consists of means for converting, without logarithmic calculation, a measured altitude of the sun, moon or a star into a position line on a chart by employing a member upon which are traced two sets of curves, one representing a system of small circles on the earth's surface whose common centre is the subsolar, sublunar or substellar point, and the other the orthogonal system of great circles through this point, and by adapting this member to move over the chart in the same way that the corresponding system of curves moves over the earth. The chart is preferably a Mercator chart, and is enclosed in a frame 2 to which is hinged a frame 1 carrying rollers 3 upon which is mounted a transparent diagram of the Mercatorial projection of the two sets of curves 7, 8. This diagram may be traversed across the chart by operating a handle, and has marked upon it a line 9 bearing a time scale to facilitate the correct setting of the diagram upon the chart. A set of diagrams is necessary, each for a different value of the declination.
Patent GB-1077746-A (GB)
Title: Improvements in or relating to metal sheathed mineral insulated cables or elements
Inventor: REIK HANUS
IPC: H01R4/72
Filed: 1965-03-16
Abstract: 1,077,746. Sheathed resistance heating elements. ISOPAD Ltd. March 4, 1966 [March 16, 1965], No. 11098/65. Heading H5H. [Also in Division H2] The crimped connection 7 between a conductor 6 and a heating element comprising a magnesium oxide insulated conductor 3 having metal sheath 1 is sealed by passing a sleeve of irradiated plastics material over it and heatshrinking the sleeve to makeintimate contact with the connection. Preferably the sleeve has an inner layer which is plastic at the shrinking temperature and fills the spaces around the crimped section. The sleeve may be of P.V.C. or P.T.F.E.
Patent GB-399888-A (GB)
Title: Improvements in and relating to direct current generators
IPC: H02J7/32
Filed: 1932-04-19
Abstract: 399,888. Exciting dynamos ; charging batteries. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G., Thames House, Millbank, London, and BECKETT, C. M., 55, Wordsworth Drive, Cheam, Surrey. April 19, 1932, No. 11202. Addition to 374,565. [Classes 35 and 38 (iv).] In a generator having the shunt field winding divided into two portions B, C, one connected across a battery D and the other B, which has a resistance H in parallel with it, cut out for battery charging as claimed in the parent 'Specification, the usual reverse-current relay is replaced by a resistance J in the battery circuit. In the full load position of the switch E, the resistance H is disconnected from the field winding B.
Patent GB-1390222-A (GB)
Title: Filters
IPC: B01D25/00
Filed: 1972-03-10
Abstract: 1390222 Filters MILLIPORE CORP 10 March 1972 [22 April 1971] 11219/72 Heading B1D Liquid is filtered by introducing it into housing 29 (Fig. 2) wherein it passes through a cylindrical filter element 32 formed by spirally winding, around core 21, a multilayer sheet 20 (Fig. 1) comprising a non- corrugated filter layer 6 sandwiched between two generally-flat spacer layers 4 and 5 having a high percentage of void volume, spacer layer 5 being backed by an impermeable layer 11. Some of the edges of the layers of sheet 20 are sealed by adhesive strips 10, 16, 18 as shown in Fig. 1 so that the liquid in housing 29 flows into the upper edge of spacer layer 5, passes downwards and inwards through filter layer 6, and leaves the filter element through the lower edge of spacer layer 4. The filtered liquid flows out of housing 29 through holes 37. The filter layer may be formed from cellulose acetate or cellulose nitrate, and have an average pore size as small as 0.025 micrometer. The filter layer may be laminated between two woven support layers formed with polyester fibre. Each spacer layer, which may be between 0.02 and 0.03 inches thick, may be formed by two sets of parallel plastics strands adhered to each other as shown in Fig. 5. The impermeable layer may comprise polyvinyl chloride, polyvinyl acetate, polyethylene or polypropylene. The type and amount of adhesive employed is such that adhesive penetrates into, but not through, the filter layer so that sealing on one surface of the filter layer does not result in sealing on the opposite surface. Epoxy or polyurethanebased adhesives are particularly useful for providing the desired sealing. A cylindrical filter element can also be produced by spirally winding a multi-layer sheet having more than one filter layer, more than two spacer layers, and more than one impermeable layer. Spacer layers could taper axially of the element from thick open edges. The impermeable layer may be longer than the others and thus form the cylindrical periphery of the element.
Patent GB-739979-A (GB)
Title: Magnetic bearing
IPC: G01R11/14
Filed: 1954-04-20
Abstract: 739,979. Magnetic bearings. ROULEMENTS A BILLES MINIATURE SOC. ANON. April 20, 1954 [April 22, 1953], No. 11310/54. Class 12 (1). In a magnetic bearing for the shaft 3 of a measuring instrument, comprising a permanent magnet 8 which operates through attraction, the magnetic flux is concentrated at the slightly truncated tips of two opposed cones formed on the magnet 8 and on the end of the shaft 3 respectively. A ball 10 is disposed at the tips of the cones. Another permanent magnet 9 is located at the opposite end of the shaft 3 and is spaced from a core 6 on the shaft 3. Alternatively the shaft 3 is supported on the lower magnet 9. The cores 5, 6 are of soft iron and are forced on the shaft 3 which is preferably of aluminium.
Patent GB-1314491-A (GB)
Title: Vehicle brake testing apparatus
IPC: G01L5/28
Filed: 1971-04-26
Abstract: 1314491 Testing brakes dynamometrically O BEISSBARTH 26 April 1971 [26 May 1970] 11344/71 Heading G1W A brake testing device comprises two pairs of rollers 8, 10 and 17, 18, each pair being driven by a common electric motor 1 through a separate drive path, each drive path including means for measuring the braking load on the corresponding roller pair. Motor 1 drives a shaft 4 having a flywheel 3. Roller 10 is driven from shaft 4 by means of a chain or belt 7 engaging a sprocket or pulley 4a on the shaft. The chain or belt also passes around sprockets or pulleys 5a, 5b mounted on a measuring arm 6 which is rotatable about shaft 4 against a spring 12 to measure the torque applied to roller 10. The torque measured is applied to indicator 14 via a magnifying linkage 13. Roller 17 is driven from shaft 4 by a similar torque measuring belt or chain drive and via a shaft 16 which passes through roller 8, the torque applied to roller 17 being indicated on a separate indicator 14.
Patent GB-1470281-A (GB)
Title: Automated apparatus for jointing wood plates in side-by-side  relation
IPC: B27M1/08
Filed: 1975-03-19
Abstract: 1470281 Nailing machine SUNTORY Ltd 19 March 1975 [4 July 1974] 11349/75 Heading B4C Apparatus for nailing together a plurality of planks in side-by-side relationship comprises means for feeding strips of sealing material between the planks in the form of chucks movable vertically and transversely of the longitudinal direction of the body of the apparatus. As shown in Fig. 3 a wooden plate is placed against a holding means 11 and nails are driven by a driver 9. The means 11 is then moved backwards by a predetermined distance. Seal feeding means 14 in the form of chucks feed a sealing strip to a position adjacent the tips of the nails and a second plank is impaled on the nails thus firmly locating the sealing strip. The process is repeated until the required number of planks are joined together. A nail hopper 13 (Fig. 4) is provided with an apertured sliding plate 16 beneath it to selectively place nails in position in channels A, B, C, D, E by moving either to the right or left.
Patent GB-1530495-A (GB)
Title: Internal combustion engine having a variable size choke carburettor with an electronic air/fuel ratio control syste
IPC: F02M7/24
Filed: 1976-03-22
Abstract: 1530495 Carburetter with electronic mixture control NISSAN MOTOR CO Ltd 22 March 1976 [20 March 1975] 11373/76 Heading F1H A carburetter with an electronic air-fuel ratio control system 30, 31 operable in accordance with an operating variable of an I.C. engine comprises a metering needle 18 mounted on a suction responsive piston 14 and co-operating with a nozzle 21 of a tubular nozzle carrying member 22 slidable in a fuel passageway 20 and an air passageway 33 communicating with the nozzle 21 and controlled by the electronic control system 30, 31. The control system may respond to the exhaust gas oxygen content to adjust a valve 32. The position of member 22 may be manually adjusted by a screw (25), Fig. 2 (not shown) whose head can carry a temperature scale (50), Alternatively the position of member 22 may depend upon the temperature sensed by a bi-metal arm (26b'), Fig. 3 (not shown) of lever 26 or upon atmospheric pressure sensed by a bellows (29) Fig. 4 (not shown) or both.