baber/WOPTO huggingface dataset:
Patent GB-418936-A (GB)
Title: Improvements in and relating to means for regulating the current transmission of grid controlled discharge valves
IPC: H02M1/04
Filed: 1933-10-04
Abstract: 418,936. Converting. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 4, 1933, Nos. 27313 and 27314. Convention dates, Oct. 4, 1932 and July 1, 1933. [Class 38 (ii).] A grid controlled discharge device is regulated by means of a synchronous machine, the angular position of the field of which may be varied and in which the exciter windings producing the field are connected so that the currents flowing in them are independent of each other. A D.C. motor 1 is supplied from A.C. mains 3 through discharge devices 2, the grids of which are controlled by means of contact apparatus 4 driven by a synchronous motor 5 to obtain phase displacement of the moments of ignition, the stator of the motor 5 is provided with excitation windings S, R fed from a source of constant D.C. and a further winding T fed with D.C. in dependence on the motor load. As the current through the winding T varies the magnetic axis of the motor shifts and phase displacement of the grid potentials takes place. In the form shown, the winding 7 is connected across a resistance 8 in the motor 10 circuit. A variable resistance 9 enables manual regulation to be effected. In a modification, the grids are supplied from a synchronous generator, the excitation of which is controlled in the above manner. To start the motor 10 the winding T is connected temporarily to the D.C. circuit 7 through a variable resistance. In the arrangement shown in Fig. 3, provision is made for automatic voltage regulation and for compounding. With the relays 36, 37 in the position shown the field winding 32 is connected to the mains 40 to be supplied and the windings 33 are connected in parallel and to a source of constant D.C. When the rectifier is switched on the magnetic axis of the machine field will slowly shift permitting the voltage of the circuit 40 to build up. When this reaches approximately 90‹ full value the relay 36 operates to connect one part of the winding 33 to the load circuit 40 so that automatic voltage regulation takes place. To enable compounding to be effected the relay 37 is provided, this operates when the current in the load circuit 40 exceeds a predetermined value to connect the part of the winding 33 connected across the circuit 40, across a shunt 42.
Patent GB-833088-A (GB)
Title: Improvements in or relating to the production of ª‰-ionone
Inventor: CARRINGTON THOMAS RONALD
IPC: C07C403/00
Filed: 1957-08-30
Abstract: In a process for the cyclization of pseudoionone in the presence of concentrated sulphuric acid to yield substantially b -ionone, diisopropyl ether is employed as diluent.  Examples are furnished in some of which a -ionone is produced as a by-product.
Patent GB-220204-A (GB)
Title: Improvements relating to movable shuttering for use in concrete constructional work
IPC: E04G11/22
Filed: 1923-11-01
Abstract: 220,204. Rogers, R. H. Nov. 1, 1923. Moulding walls in situ. - Shuttering for use in course upon course construction consists of stayed uprights a, against which the shutters are supported, and box-like shutters with their working faces lined preferably with metal, such as leadfaced sheet iron, the upper edges l of which are splayed outwardly to form a guiding chute for the concrete. The upper surfaces d of the boxes may constitute workmen's platforms. Reinforcement of the type described in Specification 220,106, [Class 20 (iv). Floors &c.], may be used. According to the Provisional Specification, in the casting of hollow walls, cores lined on both faces may be used and means adopted to raise the core simultaneously with the shutters.
Patent GB-387758-A (GB)
Title: Improvements in manually operable valved outlet for a collapsible tube, bottle or other container
IPC: B65D47/24
Filed: 1931-10-02
Abstract: 387,758. Closures for collapsable tubes &c. LIPSHITZ, G., 101, West 42nd Street, New York, U.S.A. Oct. 2, 1931, No. 27442. Convention date, Jan. 6. [Class 125 (iii).] A manually operable valved outlet for a collapsable tube &c. with a hollow cap 15 and a discharge orifice 16<1>, includes a device 13, having a non-round aperture 30 in which travels a spiral screw 29 fixed axially of the valve body 23, the interior wall of the cap carrying slots 32 in which slide wings 33 attached to the valve body 23. The cap 15 is held from axial movement by two flanges 17, 19 engaged by a flange 12 on the neck of the container, a packing washer 18 being interposed. On manual rotation of the cap 15, the valve 23 will thus be moved by the spiral 29 to open or close the orifice 16<1>. In a modification the cap may carry an elongated spout from which the contents may be used in drop form instead of ribbon form.
Patent GB-186843-A (GB)
Title: Improvements relating to clutch operating mechanism for motor cycle engines
IPC: B62M25/00
Filed: 1921-10-15
Abstract: 186,843. Corah, W. B. Oct. 15, 1921. Controlling by rider's knees; controlling apparatus, arrangements of transmission gear in conjunction with.-The clutch of a motor-cycle can be operated by the rider's knee in addition to the usual handle-bar control. The push-rod d that releases the clutch is operated by a lever a which is connected by a Bowden wire f to the handlebar lever, while its upper end a<1> is within reach of the rider's knee, and is adjustable by means of a clamping-bolt g.
Patent GB-673794-A (GB)
Title: Improvements in and relating to electrostatic charging devices
IPC: G01T1/142
Filed: 1950-11-13
Abstract: 673,794. Electrostatic generators. CHADFIELD, C. R. A. Nov. 13, 1950, No. 27722/50. Class 35. In a reciprocating electrostatic generator operated by depressing a spring - loaded plunger 2, an initial charge is obtained by friction between an insulating section 11 of the plunger and a metal guide bush 8 which also serves as the fixed electrode of a variable condenser whose movable electrode 12 is mounted on the insulation section. The potential of the charge is increased by separation of the condenser electrodes and, at the end of the plunger stroke, it is transferred through a pin 16 to a cup-shaped output terminal 13 mounted on an insulating body 14. The charge may be regulated by axial adjustment of a cylindrical earthed screen 18 by means of a spiral cam groove 21 in the body of the device.
Patent GB-1007315-A (GB)
Title: Stream analyzer and process for using same
IPC: G01N27/06
Filed: 1962-07-19
Abstract: 1,007,315. Determining relative quantities of fluid mixture constituents. UNIVERSAL OIL PRODUCTS CO. July 19,1962 [July 21, 1961], No. 27740/62. Heading G1N. In an arrangement for the continuous conductometric analysis of a stream of a non aqueous solution, of an ion forming substance such as a water soluble or hydrolyzable compound e.g. boron trifluoride, in a non-polar liquid carrier such as a liquid hydrocarbon the sample stream is contacted with a substantially immiscible polar solvent stream, the sample and solvent streams are subsequently separated, and the conductivity of the solvent phase containing the ion forming consistuent is measured. A dipole moment greater than 0. 7 x 10-18 is specified for the solvent which should exhibit a preferential absoritivity for the ion-forming constituent, and the carrier component system may be a true solution, an emulsion, a chemical complex, or a slurry. Water, the sample and air are applied through lines 1, 4, 7 respectively and flow indicating controllers 3, 6, 9 to a spiral mixing chamber 10 feeding a separating chamber 11. Withdrawal line 14 for the solvent phase includes a conductivity cell 16 with electrodes 23, 22 coated with platinum black, and a temperature compensating device 18 such as a thermistor coupled to an indicating device 21 which may comprise a self balancing A.C.bridge. The flow of air is necessary to ensure intimacy of contact between the two streams. Drift error due to impurities in the water may be avoided by using distilled water from a large tank to which the system has been calibrated. A paddle type mixer may alternatively be employed and the mixer and separator may be replaced by a single vessel. The conductivity electrodes may be housed in the tank. The resistance measurement may be used for automatic control and the apparatus may be immersed in a bath of constant temperature.
Patent GB-485730-A (GB)
Title: Control means for inductive heating apparatus
IPC: H05B6/02
Filed: 1936-09-19
Abstract: 485,730. Surface hardening metal articles. DENNTEEN, F. S., DUNN, W. C., and MITCHELL, C. N. Sept. 19, 1936, No. 27811/37. Divided out of 485,455. [Class 72] [Also in Group XXXV] Apparatus for the inductive heat treatment of articles comprises an inductor device 15, 16 which is initially supplied with heating current through a transformer 159<1> from a high-frequency source 159, a thermo-couple or photo-electric cell 154 being arranged to cause operation of relays 155, 157, 157<1> at a predetermined temperature of the member 18 under treatment, to open the primary and secondary circuits of the transformer 159<1> and close those of a transformer 160<1>, the apparatus being then supplied from a low-frequency source 160. A switch in the portion of the circuit common to the sources 159, 160 is opened by a relay 161 controlled by the device 154 at a temperature of the member 18 higher than the predetermined temperature, and a further switch 34 in this circuit is opened through the medium of a screw 37 on movement of the inductor member 15. Quenching fluid is supplied from a pipe 27 through a valve 30 and flexible pipes 28, 29 and is applied to the member 18 through orifices 33 in the inner walls of the members 15, 16, the valve 30 being opened when the inductor member 16 is swung outwards. The outer walls 24 of the members 15, 16 may be made of separate pieces of insulating material, and the air gap 20 may be regulated by means of the adjusting screw 19.
Patent GB-483379-A (GB)
Title: Improvements relating to duplicating machines
IPC: B41L11/08
Filed: 1936-10-14
Abstract: 483,379. Duplicating-machines. FORD, F. R. Oct. 14, 1936, No. 27833. [Classes 100 (i) and 100 (ii)] Copying documents ; delivery apparatus.- A rotary duplicating-machine comprising an impression roller 8 co-operating with a printing- cylinder 3 carrying a mirror-script master sheet 5 is provided with a guide extending around the back of and beneath the cylinder and spaced away therefrom so that the printed sheets are directed first downwardly and then forwardly, being thus delivered from the machine face upwards. The guide may be in two parts 13, 14 attached to a cross-bar 12, the part 13 being hinged at 16 to provide access to the machine and normally resting against a stop 17. Cross-members 19 situated close to the surface of the cylinder 3 prevent the free end of the master sheet from obstructing the passage of the copy sheets between the cylinder and the guide. Specifications 384,771, 440,334, 447,184, and 483,403 are referred to.
Patent GB-629999-A (GB)
Title: Pressure-resisting water-tight box for electrical equipment
IPC: H02G15/14
Filed: 1947-10-17
Abstract: 629,999. Carrying conductors through partitions ; junction boxes. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 17, 1947, No. 27851. Convention date, Dec.. 10, 1946. [Classes 36 and 38 (i)] Conductors are led through the walls 2, 3 of a pressure-resisting waterproof junction box 1 by means of metallic lead through terminals 5 having inclined walls and embedded in insulation 6 in frusto-conical openings in the walls, so that external fluid pressure tends to force the terminals and insulation more tightly into the openings. The terminals 5 are connected to terminals 7 of equipment 8 by flexible leads 9. Two conductors may be led through the same opening by means of coaxial terminals, Fig. 9, the central one 22 being conical and the outer one 23 being annular and having inclined walls. Both are embedded in insulation 26. The junction box may be filled with air and contain a drying substance, or may be fitted with an insulating liquid, a flexible air-filled cell being incorporated therein to allow for changes in volume of the liquid.
Patent GB-779753-A (GB)
Title: Improving moisture impermeability of butadiene resins
IPC: C08K5/01
Filed: 1955-09-30
Abstract: Resins prepared by copolymerizing 100 to 50 per cent of butadiene-1,3 and 0 to 50 per cent of styrene in the presence of an alkali metal are cured at 100 DEG  to 250 DEG  C. with 5 to 20 per cent of a paraffinic or naphthenic hydrocarbon diluent boiling above 200 DEG C. to improve their moisture impermeability.  Suitable diluents are paraffin wax, lubricating oils, phenol extracts and white oils. The curing may be effected in the presence of a catalyst, e.g. tert. butyl peroxide.  Suitable copolymers may be prepared using a sodium catalyst in the presence of inert hydrocarbon diluents, e.g. Varsol, naphtha, butane, benzene, toluene, cyclohexanone and pentanes, promotors, e.g. dioxane, diethyl ether and the diethyl ethers of ethylene glycol and diethylene glycol, and activators, e.g. methanol, isopropanol and n-amyl alcohol.  Fillers, e.g. mica, asbestos, silica and "Dicalite" (Registered Trade Mark) may be added to the resins, which have high dielectric strengths.
Patent GB-1244058-A (GB)
Title: An improved fork-lift truck or similar load carrying vehicle
Inventor: KARLSSON JOHN OSKAR ROBERT
IPC: B66F9/06
Filed: 1969-06-03
Abstract: 1,244,058. Adjusting load on wheels. LIDHULTS MEK VERKSTAD A.B. 3 June, 1969 [6 June, 1968], No. 28109/69. Heading B7D. [Also in Division B8] A fork-lift truck or like vehicle having a frontally arranged hydraulically-operated lifting means comprises a wheel 9 at each side of the normal pair of front wheels 7 of the vehicle and adapted to be hydraulically lowered into contact with the gound by rams 12 connected to the hydraulic lifting system of the vehicle, whereby the wheels 9 relieve the load on the wheels 7 by engaging the ground with a force proportional to the load being carried by the vehicle. Each wheel 9, which is essentially the same diameter as the wheels 7, is mounted on the vehicle through a suspension device 10 and is axially aligned with the wheels 7 during use.
Patent GB-999396-A (GB)
Title: Process for the manufacture of ethers of the yohimbane series
Filed: 1961-08-02
Abstract: Compounds of the general formula <FORM:0999396/C2/1> (wherein R1 and R3 each represent an unsubstituted or substituted aliphatic hydrocarbon group, R2 represents a C1-4 alkoxy group, R4 R5 and R6 each represent a hydrogen or halogen atom or a C1-4 alkyl, alkoxy or alkylmercapto group or two of them in adjacent positions together represent an alkylenedioxy group of 1 or 2 carbon atoms, and R7 represents a hydrogen atom or a C1-4 alkyl group) and their N-oxides, and salts of these compounds, are manufactured by subjecting a compound of the general formula <FORM:0999396/C2/2> (wherein R1 represents the acyl radical of an organic sulphonic acid), or an N-oxide thereof or a salt of either compound, to alcoholysis with an alcohol of aliphatic character, and, if desired, converting a resulting tertiary amine into an N-oxide or vice versa and/or a resulting base into a salt thereof or vice versa.  Specifications 885,981, 897,053 and 999,395 are referred to.
Patent GB-816644-A (GB)
Title: Support for the rotatable part of measuring, recording, indicating or switching apparatus, and particularly for a relay armature
IPC: H01H50/28
Filed: 1957-09-06
Abstract: 816,644. Electric measuring instruments. STANDARD TELEPHONES & CABLES Ltd. Sept. 6, 1957 [Sept. 13, 1956], No. 28164/57. Class 37. [Also in Groups XIX and XXXVII] In a suspension mounting as in Specification 715,427 for the rotatable part of a measuring, recording or indicating instrument, the compression spring for initially tensioning the blade spring 3 carrying the rotatable part 6 is replaced by a stiff, flat spring 5 against which presses an adjusting screw 7 mounted in the plane of the blade spring 3.
Patent GB-1283839-A (GB)
Title: Angular-contact rolling bearings
IPC: F16C19/16
Filed: 1970-06-10
Abstract: 1283839 Bearings TEXTRON Inc 10 June 1970 [11 June 1969] 28177/70 Heading F2A The assemblage of balls in an angular-contact bearing is facilitated by the inclusion in one race ring 14 of an annular member 26 of resilient material. The member is moulded directly in a recess 27 in the ring. The surfaces of the recess and the member may be cylindrical as shown, or frusto-conical. One race ring may carry a resilient ring 23 which in its unstressed state protrudes axially beyond the end face of the other race ring; the ring 23 allows the bearing to be safely axially preloaded by tightening up a nut 19.
Patent GB-196312-A (GB)
Title: Improvements in or relating to lenses for telescopes, photographic cameras and other purposes
IPC: G02B1/06
Filed: 1921-10-24
Abstract: 196,312. Gunn, M. J. Oct. 24, 1921. Liquid lenses are constructed of separate curved glasses of even thickness throughout and are filled with glycerine, preferably chemically pure of approximately 1.260 specific gravity, or with oil of camphor or oil of cedarwood. A certain proportion of gelatine may be added with the object of thickening the filling medium or altering the focal length. In this case, formalin or other preservative may be added. A compound lens is constructed of several lenses as above, having different filling media for the better correction of aberrations. The shells or the media may be tinted. Specifications 19189/92 and 101,260 are referred to.
Patent GB-723984-A (GB)
Title: Machine for clearing away the ballast from under the railway track sleepers
IPC: E01B27/10
Filed: 1951-12-01
Abstract: 723,984. Motor vehicle driving arrangements. DROUARD, J., and BOULARD, G. Dec. 1, 1951, No. 28214/51. Classes 79(2) and 79(3). [Also in Group XXX] In a machine for clearing, screening and spreading ballast cleared away from beneath railway sleepers (see Group XXX) the machine, when inoperative, is propelled along the track at a certain speed by a power unit 38 of any suitable description driving wheels 3 through any convenient transmission means 39 provided with a clutch and gearbox and when operative the power unit 38 drives an electric generator 40 which supplies current to drive the various mechanisms and motors 41, 42 which through reduction gears propel the machine along the track at a speed lower than the certain speed. Fig. 2 shows the forward end of the machine.
Patent GB-1069480-A (GB)
Title: Memory system
IPC: G06F13/36
Filed: 1965-07-05
Abstract: 1,069,480. Digital computers; memory systems. HUGHES AIRCRAFT CO. July 5, 1965 [Oct. 27, 1964], No. 28344/65. Heading G4A. In a memory system having a plurality of memory banks and a plurality of memory access sources, different sources may access different banks simultaneously but different sources may access a single bank only according to a predetermined priority. Each bank includes an address register and selection means including a priority network responsive to said register and also to memory access request signals from said sources. Said plurality of sources may include an arithmetic unit and one or more inputoutput devices, these devices taking priority over said arithmetic unit. The memory banks may comprise arrays of magnetic cores, films or wires. The input-output devices may include magnetic tape or discs, punched tape, radar or communication systems. The addresses provided by the various sources have a portion which is common to all memory banks and a bank selector portion for identifying a particular bank. A two-bank system is schematically shown in Fig. 1, each bank 10, 12 including an address register 18, 20 and a data register 22, 24. A single input-output device, which may include standard interface equipment, is shown at 46. The arithmetic unit is taken to include a buffer register 28, a (parallel) adder 30, an accumulator register 32, a sequencer 34 and also a program control unit comprising a program counter 38, a command register 40 and a program control unit sequencer 42. Each memory bank includes a feed-back network for inhibiting operation of the arithmetic unit whenever the input-output device is accessing the same bank as requested by the arithmetic unit. The selection means and other parts consist of networks of transistorized NAND gates (as in Fig. 6, not shown) arranged to operate as AND and OR gates inverters and toggle flip-flops (Fig. 7, not shown).
Patent GB-319146-A (GB)
Title: Improved means enabling the fluid pressure in pipe and like systems to be tested or ascertained
IPC: F16L41/16
Filed: 1928-10-03
Abstract: 319,146. Saunders, P. K. Oct. 3, 1928. Indicating and locating leaks.-A pressure-testing valve forming a self-contained unit for determining leakages in pipes is screwed into a housing cast integral with the wall of a length of pipe in a compressed air or like conduit. The valve housing is formed with a surrounding wall 10 to protect the valve from accidental damage. Alternatively the housing may be cast integral with a short section of pipe for insertion in a pipe line, or it may be formed in a removable fitment to be clamped over an aperture in an existing pipe. The valve consists of a ball 14 which bears, under the action of a spring 16, and the fluid pressure within the pipe, on a renewable seating 7 of fibre or other suitable material. A tubular or fluted member 9 is adapted to be depressed on the insertion of the pressure-gauge connecting means in a recess 21 formed at the upper end of the valve body. The length of the depressing member 9 is such that the ball is forced from its seat before the connecting means makes a pressuretight joint in the recess 21, thereby ensuring that any dirt may be blown clear before the gauge is connected.
Patent GB-1042896-A (GB)
Title: Improved process for the preparation of lactams
IPC: C07C45/46
Filed: 1963-07-18
Abstract: Lactams of the general formula <FORM:1042896/C2/1> wherein n is greater than 5, are prepared by reacting ketones of the general formula <FORM:1042896/C2/2> wherein Y is an alkyl or an aryl radical, in the presence of sulphuric acid with substances yielding NO ions in a molar ratio of said ketone to said substance greater than one, at - 5 DEG  C. to +120 DEG  C. and wherein the molar ratio of NO ions to sulphuric acid is between \1/2 and \1/4. The sulphuric acid may advantageously be present together with sulphur trioxide, or in an amount of water not higher than 15% by weight as calculated on the total quantity of sulphuric acid, or anhydrous sulphuric acid may be used.  Specified substances yielding NO ions are nitrosyl sulphate, its anhydride, nitrosyl chloride or nitrous anhydride. The reaction is advantageously effected in the presence of inert organic or inorganic solvents which are easy to evaporate.  Cyclododecyl phenyl ketone is obtained by reaction of cyclododecanoyl chloride with benzene in the presence of AlCl3 at less than 30 DEG  C.
Patent GB-204555-A (GB)
Title: Improvements in or relating to the safety guards of hydro-extractors
IPC: B04B7/06
Filed: 1922-10-20
Abstract: 204,555. Manlove, Alliott, & Co., Ltd., and Philps, A. M. Oct. 20, 1922. Casings.-A centrifugally-actuated locking-device for the cover A of a hydro-extractor B comprises flange-rings E, F fixed to the drum-shaft D, between which is mounted a disc G having a large hole G<1> therein. On closing the cover A, an opening C therein passes over the members E - - G. The disc G is thrown outwards when the drum is rotated, and locks the cover.