baber/WOPTO huggingface dataset:
Patent GB-941510-A (GB)
Title: Improvements in or relating to fluid actuated control systems
IPC: B60T13/58
Filed: 1962-04-10
Abstract: 941,510. Fluid-pressure brakes. W. LUCK. April 10, 1962 [April 13, 1961], No. 13841/62. Heading F2F. A fluid actuated control system incorporating a main control system and a "fail-safe" emergency control system adapted to be operated in the event of at least a predetermined partial failure of the main control system has a main control cylinder 1 for operation of the main control system, and an energy converter 9 serves to operate actuating means for the emergency control upon the occurrence of said failure. The energy converter 9 is connected to an energy source through a switching arrangement 18, 19 connected to the cylinder 1 and effective in the event of said failure on operation of the main control system to connect the energy source to the energy converter so as to cause the actuating means to effect the emergency control. As shown a main brake control cylinder 1 of a motor car is connected by oil pressure pipes 2, 3 to the brake cylinders 6. A hand operated brake includes cables 7 connected from a hand-brake 8 to the rear wheels 5, the cables 7 also being connected to the piston of the energy converter 9. A pipe 10 connects the cylinder 9 to the main cylinder 1 and from there a pipe 11 is connected to the inlet manifold of the engine. When the brake pedal is actuated the piston 15 moves to the left to set up the required brake pressure and compress spring 16. If a large brake pressure is produced pin 25 impinges on rod 20 but the pressure behind the diaphragm 21 is arranged to be greater than the spring 24 so the latter is compressed. However if the brake pressure cannot be generated, e.g. because of leakage, the pin 25 pushes the valve rod 20 so as to open the valve 18 and connect the cylinder 9 to inlet manifold vacuum to actuate the hand-brake system. Alternatively the pin 25 may be used to close an electric contact switch to connect a battery to a solenoid.
Patent GB-1452466-A (GB)
Title: Process for the production of aniline and apparatus therefor
IPC: C07C209/36
Filed: 1975-04-04
Abstract: 1452466 Production of aniline CHEMOPETROL 4 April 1975 13867/75 Heading C2C A process for the production of aniline comprises catalytically hydrogenating nitrobenzene in the gaseous phase in a first processing step from which heat of reaction is withdrawn and continuing the hydrogenation in a second processing step without withdrawal of heat. In a preferred embodiment the first processing step is carried out at from 160‹ to 400‹ C. and is continued until from 70 to 99À9% by weight of the nitrobenzene is converted to aniline and the second step is continued to obtain the maximum possible conversion of the nitrobenzene.
Patent GB-1138857-A (GB)
Title: Rolling mill for treating metal
IPC: B21B13/10
Filed: 1966-03-29
Abstract: 1,138,857. Rolling; continuous casting. UNITED STATES STEEL CORP. 29 March, 1966 [7 April, 1965], No. 13885/66. Headings B3F and B3M. A rolling mill comprises four abutting rolls 13a, 13b, 13c, 13d each having a primary shaft 15a, 15b, 15c, 15d extending from one side and mounted in a chock l9a, l9b, 19c, 19d, respectively, and a secondary shaft 17a, 17b, 17c, 17d supported by the chock 19b, 19c, 19d, 19a of an adjacent roll. The shafts are restrained in the chocks 19a, 19b, 19c, 19d by removable capping means (25), Fig. 2 and 3 (not shown). The primary shafts 15a, 15b, 15c, 15d are mounted in friction or anti-friction bearings 23a, 23b, 23c, 23d in the chocks to allow free rolling of the rolls. The rolls are preferably independently driven by synchronized motors but since the rolls frictionally engage each other they may be driven from a single drive. Two nests of rolls 30, 40 may be arranged in tandem to draw a hot ingot direct from a continuous casting mould 35 in order to reduce it in two successive stages. If desired, further nests may be positioned to accomplish further reduction. The rolls may be altered to change the shape of the pass, e.g. circular or hexagonal.
Patent GB-1392908-A (GB)
Title: Salts thereof
IPC: C07D461/00
Filed: 1973-03-22
Abstract: 1392908 Apovincaminic acid derivatives SYNTHELABO 22 March 1973 [22 March 1972] 13911/73 Heading C2C The invention comprises compounds of general formula (I) in which A is a C 4 -C 6  alkylene group optionally substituted by one or more C 1 -C 6  alkyl groups and optionally interrupted by -O-, -S-, or -N(R)- (R is a hydrogen atom or a C 1 -C 6  alkyl group), and pharmaceutically acceptable acid addition salts thereof. The radical -NA may be, for example, a piperidino, morpholino, thiomorpholino, pyrrolidino, perhydroazepino, piperazino or N-methyl piperazino group. Suitable pharmaceutically acceptable acids are for example, hydrochloric acid, citric acid, tartaric acid and malic acid. The new compounds may be prepared, for example, by converting apovincamic acid or an alkali metal salt thereof into an acid halide, for example by treatment with oxalyl chloride or a thionyl halide and converting the halide to the amide by treatment with the corresponding heterocyclic amine. Alternatively the acid may be converted to another functional derivative, for example an alkyl ester, which is then reacted with the heterocyclic amine. The products are used with conventional carriers and diluents in pharmaceutical compositions.
Patent GB-627791-A (GB)
Title: Electric converting systems
Filed: 1947-05-23
Abstract: 627,791. Rectifying ; systems depending upon two or more sources ; automatic regulation. SIEMENS BROS. & CO., Ltd., and DOUBLE, H. S. May 23, 1947, No. 13963. [Classes 38 (ii) and 38 (iv)] [Also in Group XL (b)] So that the load may be suitably shared between a number of rectifiers in parallel, the D.C. magnetization current of a saturable regulating choke in each rectifier circuit is wholly or partly determined by the load current of another. Two three-phase rectifier systems CA, CB may be connected as shown to supply in parallel a load EXL such as telephone exchange equipment across which are connected by operation of switches JS, LS one or both secondary batteries BA, BB. With such parallel connection, the load current of one dry plate rectifier MR passes through seriesconnected windings II on regulating chokes CHA, CHB, CHC, each of which has its A.C. winding I connected between the star point and one of the primary windings PA, PB, PC of three-phase transformer TR, the secondary windings SA, SB, SC of which supply the other rectifier. One rectifier alone may be used by reversing switch PS and operating switches CAS, CBS, so that the windings II of that rectifier system are energized by its own load current. The regulation characteristic of each rectifier is also controlled by current through windings III of the regulating chokes supplied with D.C. through a rectifier AR from a magnetic amplifier which is energized from a transformer TRA and controlled by out-ofbalance current from a bridge VSN, one diagonal of which is connected across the rectifier output. The magnetic amplifier comprises two iron-cored chokes CHE, CHF with main windings I, control windings II and D.C. feedback III. The bridge VSN has two adjustable resistance arms YXA, YYA and two non- linear resistance arms BRX, BRY, the arrangement being such that energizing current through the windings III of the main control chokes progressively increases as the out-ofbalance current from the bridge VSN changes from a critical value in one direction to a limiting value in the other, with change in rectifier output volts. Main choke windings IV connected across the rectifier output form voltage control biassing windings. It is mentioned that where three rectifiers CA, CB, CC operate in parallel, the D.C. magnetization of their chokes may be partly determined by the load currents of CC, CA, CB respectively.
Patent GB-953259-A (GB)
Title: Utrasonic delay line
Inventor: HOOVER HERBERT LESLIE
IPC: H03H9/36
Filed: 1962-04-11
Abstract: 953,259. Electromechanical delay lines. CORNING GLASS WORKS. April 11, 1962, No. 14040/62. Drawings to Specification. Heading H3U. The acoustic properties of the vitreous silica transmission medium of an electromechanical delay line are improved by subjecting the medium to a direct electric potential of 1000- 1480 v./cm at a temperature of 950-1200‹ C. The invention may be applied to a conventional delay line using quartz piezo-electric input and output transducers. It is stated that the treatment improves the homogeneity of the silica body, principally by causing migration of impurities in the form of alkali metal ions towards one of the electrodes. This results in a smoother band-pass characteristic and diminished attenuation. The time of the treatment is determined experimentally; 24 hours is given as an example.
Patent GB-680761-A (GB)
Title: Improvements in turbine-driven power installations
IPC: B63H23/00
Filed: 1948-05-25
Abstract: 680,761. Friction clutches; reverse-gear. HINDMARCH, T. June 25, 1949 [May 25, 1948], No. 14131/48. Class 80 (ii). [Also in Groups XXVI and XXXIV] To ensure gradual engagement of a liquidpressure operated friction clutch h, Fig. 2, or brake k, Fig. 1, used e.g. in a marine or locomotive reverse-gear, having a pressure-space s, Fig. 2, into which pressure-liquid, under the control of adjustable liquid-pressure operated pressure-control means in the supply-line, is introduced to control the rate of engagement and disengagement of the clutch, one or more orifices 1 of restricted area communicate the pressure-space s with the atmosphere (through further bleed-holes 2) to allow the space s to fill with air when the clutch is disengaged, which air, when driven out through the orifices 1 by the supply of engaging liquid, builds up a resilient gaseous pressure in the space s, thus ensuring a gradual increase of engaging pressure. The clutches and brakes may be of the kind described in Specifications 382,865 and 438,563, in which the pressure forces apart axially-movable discs into frictional engagement with a surrounding toothed wheel h. The pressure-control means in the liquid supply-line may comprise an adjustable dashpot, or hydraulic accumulator with or without spring-loading and capacity-variation. The air inlet and escape orifices 1 are of less cross-sectional area than the liquid supply channel, and are proportioned to give the required pressure characteristic, whilst still ensuring sufficient continuous liquid flow during running to cool the clutch. In the reverse gear shown in Figs. 1 and 2 one or more turbines drive an input shaft a carrying a pinion b meshing a wheel c on a parallel shaft d, having fast wheels f, e, meshing respectively directly and through brakeable idlers k, clutchable wheels h, j and g, i on two parallel shafts l, m, having also fast wheels n, o, driving a common wheel p on the final parallel output shaft q. The control valve, not shown, may be interlocked with the control of the prime-mover. In Fig. 3, two groups, each of three turbines, one comprising high-t<SP>1</SP>, intermediate t<SP>2</SP>, and low-pressure t<SP>3</SP>, units, the other, one high t<SP>4</SP> and two low pressure units t<SP>5</SP>, t<SP>6</SP>, are arranged on opposite sides of a reverse-gear casing, each of the six turbines carrying forward and reverse clutchable wheels u, u', on three aligned pairs of shafts, the forward wheels meshing in groups of three each with two fast outer wheels v, v, on a parallel output shaft y, whilst the six reverse wheels meshing through three brakeable idlers x with a common central wheel w fast on the output shaft y. The spur gearing may reduce or increase speed and variable-speed gearing may also be used. Bevel gearing may alternatively be used. Specification 680,789 also is referred to.
Patent GB-1535848-A (GB)
Title: Treatment of effluent
IPC: B01D17/00
Filed: 1976-04-08
Abstract: 1535848 Treating aqueous effluent BRITISH PETROLEUM CO Ltd 28 March 1977 [8 April 1976] 14294/76 Heading B1D Water contaminated with oil and solids is divided in gravity separator 22 into an aqueous fraction 23, wet oil 24 and wet oily sludge 31, the wet oil 24 is heated in tank 28 and mixed with the sludge from line 32, the mixture is pumped into a candle, leaf or plate filter 33 to remove the solids and the filtrate is separated by settling in tank 35. Separated water may be recycled from tanks 28, 35 to separator 22, and oil is discharged at 36. Periodically the flow to the filter is suspended, residual liquid is forced therethrough in the filtering direction by hot water, steam or solvent and the resulting oil-free filter cake may be dried by air.
Patent GB-1455222-A (GB)
Title: Calender
IPC: D06C15/02
Filed: 1974-04-01
Abstract: 1455222 Rollers ESCHER WYSS Ltd 1 April 1974 [17 April 1973] 14308/74 Heading F2U [Also in Division D2]  In an arrangement of calender rolls 7, 8, 9, 10, 16, one roll, 16, is supported radially movable on a support member 17 by hydraulic pressure, the range of movement being at least as great as the sum of the spacings between the rolls when the calender is open so that operation of a valve 26 to remove the pressure opens the calender. The hydraulic movement is by piston and cylinder devices 21, 22, or by a single elongate piston element extending along the roll. The movement of the rolls 7, 8, 9 and 10 to create the spacings when the calender is opened is determined by screws 15 which limit the movement of bearing blocks 12 in guides 11. Guides 11 are adjustably supported on guides 2.
Patent GB-118182-A (GB)
Title: Depositing Chromium upon Metals, particularly Iron, Chemically.
Inventor: BURNETT EDWIN EBENEZER
IPC: C23C22/08
Filed: 1917-10-04
Abstract: 118,182. Burnett, E. E. Oct. 4, 1917. Coating.-Metals, particularly iron and steel, are provided with a coating of chromium by treatment in a hot phosphoric-acid solution of chromium or a chromium compound such as chromite, the proportions being preferably such as to give an excess of acid in the solution.
Patent GB-119298-A (GB)
Title: Improvements relating to the Printing of Textile Fabrics.
IPC: D06P5/15
Filed: 1917-10-05
Abstract: 119,298. Calico Printers' Association, and Ashton, F. Oct. 5, 1917. Printing.-Discharge effects are produced on textile fabrics by first chrome-mordanting the fabric, then padding with #-naphthol and drying, then printing with a diazo compound, overprinting with citric acid, tartaric acid, or a salt thereof, to discharge the mordant, such overprint fadling wholly or in part upon the diazo print, drying and steaming, and finally dyeing with a mordant dye. The chrome-mordanting may be effected in the manner described in Specification 117,715. Specifications 27539/03, 3709/06, and 6970/08 also are referred to.
Patent GB-512735-A (GB)
Title: Improvements in and relating to electromagnetically-operated switchgear
IPC: H01H9/16
Filed: 1938-05-14
Abstract: 512,735. Electromagnetic switches. BROOKHIRST SWITCHGEAR, Ltd., and LANCELEY, C. May 14, 1938, No. 14437. [Class 38 (v)] The electromagnet 3 of a contactor 10 for alternating current of say 500 volts has in addition to its main operating winding 4 a secondary winding 12 which by a step-down transformer action illuminates a low-voltage lamp 8 for indicating or other purposes when the contactor is closed. When a "start" button 5 is depressed the circuit to the winding 4 is completed and the contactor in closing closes' a maintaining circuit at contacts 13. The lamp 8 also lights up. The contactor is opened by a " stop " push button 6.
Patent GB-376888-A (GB)
Title: Improvement in cases for electrical switches
IPC: H01H21/06
Filed: 1931-05-16
Abstract: 376,888. Switch covers. HEATH, H., 22, Beaufort Avenue, Washwood Heath, and BILL, R. W., 1, Somerset Road, Handsworth Wood, both in Birmingham. May 16, 1931, No. 14517. [Class 38 (v).] The sliding lid A of a switch box is interlocked with the switch mechanism so that the lid cannot be opened when the switch is " off " and the switch cannot be moved "on" until the lid-is closed. For this purpose the switch handle E may have a projection F which can move into a recess H in the lid A when the lid is closed. Alternatively a cam on the opposite end of the switch spindle may engage a projection or notch on the lid.
Patent GB-565022-A (GB)
Title: Improvements in micro-porous separators or diaphragms
IPC: H01M2/16
Filed: 1942-10-17
Abstract: Micro-porous material suitable for use as separators or diaphragms, especially for electric accumulators, is prepared by incorporating in polyvinyl chloride fine particles of a substance which can be subsequently removed and a solvent for the polyvinyl chloride (which acts as a temporary plasticiser), the resulting "dough" being shaped, the solvent removed and the particles removed so as to leave micropores in the solid and the product dried.  In a preferred form of the process, starch or dextrin (screened) and a solvent, e.g. methyl cyclohexanone, cyclohexanone or chlorobenzene are mixed under reflux with polyvinyl chloride.  The dough may be extruded on to a conveyer or endless belt and may pass through a heated tunnel or channel, e.g. heated by radiant lamps.  The starch or dextrin may be solubilised by treatment with hot sulphuric acid, e.g. dilute acid, with or without first treating it with boiling water to swell the starch and/or hot caustic alkali.  When starch is used the dried material may be treated with boiling water, diastase and again with boiling water before final drying.  When dextrin is used, the dried material may be treated with boiling water with or without alkali or acid and then drying.  The material may be treated also with a wetting out agent before final drying, specified is a highly sulphonated oil, e.g. Calsolene (Registered Trade Mark) oil H.S. Plasticisers may also be incorporated in the polyvinyl chloride, tricresyl phosphate is specified.  Fillers, e.g. wood flour and colouring ingredients, may also be added.
Patent GB-315050-A (GB)
Title: An outdoor receiving cabinet for parcels, provisions and the like
IPC: A47G29/20
Filed: 1928-05-18
Abstract: 315,050. Buckland, R. H. May 18, 1928. Receiving devices for doors and the like.-An outdoor receiving cabinet 2 for use on walls, fences, &c. is provided with a number of movable partitions 7, which are lowered to divide the cabinet into compartments as the space beneath a partition becomes occupied by goods inserted through the opening 3, which can be closed by the lockable lid 20, while a lockable door 10 closing an opening in one of the vertical walls of the cabinet gives access to all the compartments. As goods are inserted in the cabinet, the partition above is lowered to form a shelf for further goods, and a spring-actuated catch 9 projecting from its front edge snaps into or under a recess 11 &c. in or on the inner surface of the locked door 10; the uppermost partition, on being closed, abuts against the leg 14 of a striker 15 connected to spring-controlled sliding catch 18, and when the goods are placed on the partition the striker is depressed to move the catch 18 into position to engage a spring catch 19 provided on the lid 20, which is locked thereby when it is closed. The partitions are hinged to supports 6 on the back of the cabinet and each partition, except the lowest one, has a block 13 on its under surface which prevents it being lowered unless the partition below has been already lowered. Gauze ventilators 21 may be provided for each compartment and strips 22 space the cabinet from the wall &c. to which it is secured.
Patent GB-780102-A (GB)
Title: Improvements in or relating to anti-skid devices for vehicle wheels
IPC: B60C27/08
Filed: 1955-05-20
Abstract: 780,102. Anti-skid devices. LIECHTI, F. May 20, 1955 [May 20, 1954], No. 14627/55. Class 144 (2). The cross members 2 of an anti-skid chain ladder comprise flexible rubber or like straps having on one face spaced tread projections 11, through each of which projects the shank 13 of a metal stud ; which has an enlarged head 14 to lie between the strap 2 and the wheel or tyre periphery. As shown, the straps are secured at each end to a side chain 3 by a pair of plates 5 between which the end of the strap and one side of the adjacent chain link are clamped. The ends 4 of the straps are beaded to seat in grooves 6 in the abutting surfaces of the plates 5, similar grooves 8 being provided for the side of the chain link. The clamping plates 5 are detachably secured together by a screw 9.
Patent GB-507967-A (GB)
Title: Manufacture of disazo dyestuffs
IPC: C09B35/04
Filed: 1938-05-17
Abstract: 507,967. Dyes. GEIGY AKT.-GES., J. R. May 17, 1938, No. 14699: Convention date, May 19, 1937. [Class 2 (iii)] Disazo dyes of the general formula. (where X = H, alkyl or alkoxy, R = the residue of a phenol coupled in p-position and A = aryl) are made by coupling the diazo compound of a mono-azo dye of the formula and coupling with a phenol capable of coupling in p-position, and treating the disazo dye with an arylsulphochloride, or by coupling the diazo compound of a monoazo dye of the formula with 2 : 8 : 6-acid in acid solution, and treating the disazo dye with an arylsulphochloride. In examples : (1) the dyestuff 4-nitro- or 4-acetylamino - 1 - aminobenzene - 6 sulphonic acid # 2 : 8 : 6-acid is reduced or saponified, diazotized, coupled with phenol and the product treated with p-toluenesulpho-chloride (violet on wool); other components specified are m-cresol and 1 : 3 : 6-xylenol ; 3-methoxy- or 3 - methyl - 4 - acetylamino - 1 - aminobenzene - 6-sulphonic acid; benzene- or p-chlorbenzene sulphochloride; (2) the dyestuff 4-amino-4<1>- oxyazobenzene-3-sulphonic acid (from 4-nitro- or 4 - oxalylamino - 1 - aminobenzene - 3 - sulphonic acid # phenol and reducing or saponifying or by heating with ammonia under pressure the dyestuff 4-chlor-1-aminobenzene-3- sulphonic acid# phenol) is diazotized and coupled with 2 : 8 : 6-acid in acid solution and the product treated with p-toluenesulphochloride. Specification 25866/12, [Class 2 (iii)], is referred to.
Patent GB-235228-A (GB)
Title: Apparatus for marking out or cutting curves in metal
IPC: B23Q35/10
Filed: 1925-06-08
Abstract: 235,228. Weimer, A. June 7, 1924, [Convention date]. Milling-machines.-In a machine for milling cams, the cutter is mounted on an arm which is given an oscillatory. movement corresponding to the movement of the roller-arm which is to engage the cam. The cutter 5 is mounted on a removable cover-plate 9 which agrees exactly with the length of the roller-arm and is pivoted about a driving-shaft 13. The coverplate is oscillated by a link 12 connected to a rack 15 reciprocated by a toothed sector on a shaft 18 having a second sector 19 engaging a rack 20, the latter being actuated by a block 21 sliding in an inclined guide 22 mounted on a table 24 reciprocated by a screw driven through change-gearing 25. The inclination of the guide 22 is adjustable. The work 1 is carried by a spindle, 6 rotated through change-gearing 25a from a common pulley 28, the spindle being rotatable through 90‹ for milling face-cams and the drive then taking place through a shaft 27 instead of the shaft 26. The axis of rotation of the work is adjustable relatively to the axis of oscillation of the cutter through known means for adjusting the work-spindle carriage vertically and horizontally, and setting is provided by a plate 10, Fig. 4, embracing the cutter-pivot 13 and the work-spindle 6 and attached to the carriage at 11. The cutter is driven from the shaft 13 through change-gears mounted on adjustable plates.