baber/WOPTO huggingface dataset:
Patent GB-1354597-A (GB)
Title: Process and device for determining the angle of jump of a projectile  leaving a gun barriel
IPC: F41G3/12
Filed: 1971-08-09
Abstract: 1354597 Ordinance testing RHEINMETALL GmbH 9 Aug 1971 [13 Aug 1970] 37385/71 Heading H4D [Also in Division G1] When a projectile 30 leaves the barrel 11 of a gun it has been deviated from the original sighted path by the jump of the end of the barrel. This jump is determined in x and y directions orthogonal to the barrel axis 12 in terms of angular deviation and lateral velocity by the shown apparatus wherein a corner reflector 13 and plane mirror 14 are mounted at the barrel nozzle spaced by 95 degrees in the x and y directions, and reflect the laser beams 9a, 9b respectively produced by sources 2a, 2b, on to photo-detectors 8a, 8b. The reflections from corner reflector 13 undergo lateral deflection only in both x and y directions such that the output of detector 8a enable means 17 to determine the lateral velocities. The reflection from mirror 14 undergoes angular deflections only thereby enabling the derivation of the angular deviations. The movement of the nozzle is continuously displayed on a C.R.T. in storage means 16, a cine-camera producing a permanent record. The instance the projectile leaves the barrel is signalled by the interruption of an X-ray beam 31 from source 20 to detector 15. The reflector 13 and mirror 14 can be replaced by 90 degree prisms, one giving the x component of lateral velocity and y component of angular deviation and the other giving the corresponding y and x components.
Patent GB-1439643-A (GB)
Title: Control system for an ac induction machine
IPC: H02P27/04
Filed: 1973-08-09
Abstract: 1439643 Asynchronous motor control WESTINGHOUSE AIR BRAKE CO 9 Aug 1973 37738/73 Heading H2J Apparatus for controlling the operating point of an asynchronous motor, preferably for use with an electric railway locomotive, comprises a control loop consisting of an inverter 2 to provide 3-phase A.C. at 4 to the stator of motor 1, the rotor being connected to the output of the system and also to a tachometer 10 which provides signals indicative of rotor speed at 9 to an adder 8 for addition with a slip command signal 11 produced by manually operable regulator 19, the resulting signal at 7 being applied to inverter control logic 6 whereby a signal 5 is produced to control the frequency of the A.C. and hence of the rotating field applied to the motor stator, and also comprises means responsive to a deviation in the voltage at the input D.C. on lines 3 to the inverter 2 in excess of a predetermined amount for adjusting the slip control signal 11 independently of the regulator 19 to bring about a change in the operating point of the motor 1 to counteract the voltage deviation. The object of this is to enable inverter commutation to continue when breaks in the supply conductor are encountered by the locomotive, and to prevent protective trip circuitry from operating in the presence of transient surges. A capacitor bank 26 is charged by supply 3 and discharged by the motoring mode of motor 1. A transducer 25 is arranged to provide a constant reference on line 23 and a voltage on line 24 indicative of the capacitor voltage, which two signals are applied to network 22 comprising two operational amplifiers 27, 28 connected conventionally to provide a signal on line 20 as shown in the Figure if the voltage at line 24 increases above a predetermined limit, and a signal on line 21 if it decreases below a second limit. These signals are provided firstly to a fast acting control network 32 where by means of amplifier 31 and an exponential feedback arrangement, an output of exponential character is provided at 34. This is passed through differentiating network 35, 36 to a second amplifier which produces an output 16 which is proportional to the sum of both the value of the input and its rate of change. The signals at 20, 21 are also applied to network 41 to override the input from regulator 19 and provide an alternative output 13. The outputs 13, 16 are added at 12 to provide an alternative slip signal 11. Thus if the power at 3 is cut-off and the motor 1 is in a driving mode, rapid discharge at 26 occurs and a signal at 21 will be produced. The network 32 will react very quickly owing to its exponential and derivative character and provide a large negative signal at 11 to send the motor into a very strong regenerative mode. The capacitor will charge up again and the network 32 will loose influence relative to network 41 and a regenerative balance will be brought about until power at 3 is restored.
Patent GB-1224239-A (GB)
Title: Method and apparatus for dosing two types of moulding sand into a moulding box of a foundry mould
Inventor: BUHRER ERWIN
IPC: B22C5/12
Filed: 1968-08-07
Abstract: 1,224,239. Moulding machine. E. BUHRER. 7 Aug., 1968 [16 Aug., 1967], No. 37751/68. Heading B3F. [Also in Division B8] Apparatus for dosing two types of moulding sand into a moulding box 9 comprises two sand silos 1, 2, each being provided with a discharge device 34, and an intermediate container 5 arranged below said discharge devices and provided with a louvre closure mechanism 10. At the beginning of the operative cycle, Fig. 1, the container 5 is moved towards the conveyer belt 3 while the latter supplies sand from the silo 1 to the container 5 via a shoot 6, with the result that a layer of sand is formed in the bottom of the container 5. When this first layer is complete, the container 5 is moved in the reverse direction (Fig. 3) while sand is supplied from silo 2 via conveyer belt 4 to form a second layer on top of the first. A baffle plate 23 and the shoot plate 6, which is now in a vertical position, help to achieve a uniform and loose layer of sand. When both layers are complete, the container 5 is positioned over a filling frame 8 placed on a mould box 9, and the louvre 10 opened. In a modification, both layers of sand in the container 5 are deposited simultaneously. The silos 1 and 2 may be provided with discharge flaps 12 and 13 joined together by an arm 11 pivotable about a shaft 14. The ratio of facing sand to backing sand is varied by appropriately pivoting the arm 11 and the total quantity of sand varied by vertical displacement of the shaft 14. The discharge devices may be shaker troughs 17 oscillated by vibrators 18.
Patent GB-1108776-A (GB)
Title: Fuel cells
IPC: H01M8/08
Filed: 1965-09-03
Abstract: 1,108,776. Fuel cells. ESSO RESEARCH & ENGINEERING CO. 3 Sept., 1965 [29 Sept., 1964], No. 37770/65. Heading HIB. The invention comprises a fuel cell having as electrolyte comprising water and an acid of formula R-SO 3 H, R 1 -SO 3 H, R-R 1 -SO 3 H, R-COOH or HOCO-R-COOH or an anhydride thereof. R is either a completely fluorinated C 2-30  saturated hydrocarbon chain, or a completely fluorinated C 2-30  saturated carbocyclic radical and R 1  is a completely fluorinated C 6-12  aromatic radical. The electrolyte may comprise 5-70% of the acid or anhydride, e.g. perfluorobutyric acid. It may be used in a cell comprising a container divided into 3 compartments by an anode and a cathode the electrolyte lying between these. The electrodes may comprise a conductive material coated with a hydrophobic material or a composite mass of two such materials and may have a contact angle with water of 85 degrees or more. They may be coated or impregnated with a catalyst. Hydrophobic materials specified include addition polymers and asbestos treated with a chlorosilane. Conductive materials and catalysts specified include carbon, metals, and doped semi-conductors. In Example 1 the electrodes are prepared by mixing platinized carbon, P.T.F.E. and ammonium oxalate and heating to decompose the latter. In Example 2 the electrodes comprise platinum black, P.T.F.E. and polyacrylonitrile. The fuel may comprise a liquid hydrocarbon immiscible with the electrolyte, e.g. decane. The oxidant may be an oxygen-containing gas. The cell may operate at 100 C.
Patent GB-923916-A (GB)
Title: Improvements in or relating to electric eddy current transmissions
Inventor: TOWNDROW PERCY EDWIN
IPC: H02K49/04
Filed: 1961-10-23
Abstract: 923,916. Speedometers. S. SMITH & SONS (ENGLAND) Ltd. Oct. 23, 1961, No. 37913/61. Class 106 (3). In an electric eddy current transmission, in which eddy currents set up in an aluminium annulus 23 arranged in the field of a rotating annular permanent magnet 20 tend to make the annulus 23 rotate with the magnet 20 and in which a soft iron plate 35 is provided for adjusting the amount of magnetic flux intersecting the annulus 23, the permanent magnet 20 is composed of square loop magnetic material, e.g. barium ferrite. In the eddy current speedometer shown, the magnet 20 has a number of discrete poles near the periphery of its upper face, adjacent poles being of opposite polarity. The magnet is backed by a soft iron annular flex return member 21 and its upper face carries a temperature compensating annulus 22 of an alloy comprising 30% nickel and 70% iron. Grooves in the pointer spindle within a sleeve 32 held by a clip 33 and rivet 34 help to retain viscous material such as a silicone damping fluid. The flux adjusting plate 35 has two prongs 38 engaging sockets in the casing and a threaded hole engaged by a screw 41 whereby the plate may be flexed to vary the flux when calibrating the speedometer.
Patent GB-1013947-A (GB)
Title: Process for the production of high alloyed steels
IPC: C21C5/32
Filed: 1962-10-08
Abstract: A process for the production of high alloy steels in a refining receptacle without external heating comprises adding alloying elements and heating elements to an iron bath in a plurality of batches and refining by oxygen blow between such additions.  The heating element(s) (e.g. Si or Al) may be added alone in a given batch, together with the alloying elements or combined with the latter (e.g. Fe-Cr of high Si content).
Patent GB-523354-A (GB)
Title: Improvements in and relating to trucks, trolleys and the like
IPC: B62B5/00
Filed: 1938-12-31
Abstract: 523,354. Road-vehicle undercarriages. SCOFFIN & WILLMOTT, Ltd., and LEWIN, P. W. Dec. 31, 1938, No. 38006. [Class 108 (ii)] Means for attaching the spindle of travelling wheels of a truck, trolley, or the like comprise brackets 1, Fig. 1, secured by bolts 3 and nuts the heads 4 of which contact with a spindle 5 Fig. 2, so as to be locked against rotation. The spindle is also locked against rotation and endwise movement by a plate 7 entering slot 9 in the spindle. The plate 7 is secured to one of the limbs of the bracket 1. The travelling wheels (not shown) are preferably rubber tyred and are located between brackets by distance collars 10 or may be mounted on the outer ends of the spindles which are lengthened for the purpose.
Patent GB-1130778-A (GB)
Title: A friction clutch
IPC: F16D23/14
Filed: 1966-08-25
Abstract: 1,130,778. Friction clutches. LUK LAMELLEN UND KUPPLUNGSBAU AUGUST HAUSSERMANN. 25 Aug., 1966 [3 Feb., 1966], No. 38109/66. Heading F2C. In a motor vehicle plate clutch engaged by a diaphragm spring 12 fulcrumed at 14 on a driving housing 2, a pressure plate 5 is drivingly connected to the housing by three circumferentially spaced leaf springs 18 which abut the spring 12 and urge it into contact with the pressure plate, radial fingers 15 of the diaphragm spring being received in a disengaging sleeve 17. The springs 18 may be U-shaped, Fig. 2 (not shown), the legs extending radially inwards and connected at their ends to the housing by rivets (21), and at the base to lugs 26 on the plate 5 by rivets 19, a cut-out 22 on each spring 18 abutting the diaphragm spring 12. In Figs. 4, 5 (not shown), the leaf springs (18a) are substantially triangular with a central rectangular hole to increase flexibility. In Figs. 6-8 (not shown), the springs are formed as crank levers, the arms (20b) of which extend substantially tangentially to the plate (5). In Fig. 6 (not shown), the springs are replaced by a closed hexagonal, rectangular, or circular ring fixed in at least two places to each of the plate 5 and housing 2 respectively.
Patent GB-323906-A (GB)
Title: Improvements in domestic hand shovels or scoops
IPC: F24B15/06
Filed: 1928-12-28
Abstract: 323,906. Carter, F. Dec. 28, 1928. Shovels and scoops.-A domestic hand shovel or scoop is provided with a reinforced front bottom edge or end of V-shape by folding over the front bottom corner parts 3 towards one another and pressing them flat upon the main part 1 of the shovel. The parts bent over may overlap the sides 4 as shown at 5. Parts of the corner portions may be cut off before folding over as indicated at 6.
Patent GB-922025-A (GB)
Title: Cyanophenylsiloxanes
IPC: C08G77/00
Filed: 1959-11-13
Abstract: A siloxane consisting of units of the formula <FORM:0922025/IV(a)/1> wherein R is a monovalent hydrocarbon radical (saturated or unsaturated), n is 0 or 1, x is 1, 2 or 3, y is 0, 1, 2, 3 or 4 and the sum of x + y does not exceed 5, may be made by hydrolysing the corresponding alkoxy silane in the presence of an acidic or basic catalyst, e.g. HCl, H2SO4, CF3COOH, CH3COOH, (COOH)2, NaOH, KOH or NH4OH, and preferably in the presence of a solvent.  The hydrolysis and condensation can be effected at 0 DEG  to 100 DEG C.  Copolymers of the above siloxanes with conventional siloxanes may be made in known manner.  In a typical example (1) 3-cyanophenylpolysiloxane was made by stirring for 16 hours a mixture of 3-cyanophenyltriethoxysilane, ether and O-IN HCl, replacing the ether with toluene, removing the ethanol formed and water by distillation, distilling off the toluene, solidifying the tacky residue in liquid nitrogen and pulverizing the resulting white powder.  Uses: for coating compositions and for making elastomer-forming gums. Specification 922,026 is referred to.
Patent GB-1454456-A (GB)
Title: Hydraulically operated brake pressure modulator
IPC: B60T8/40
Filed: 1974-09-04
Abstract: 1454456 Modulators MIDLAND-ROSS CORP 4 Sept 1974 [7 Sept 1973] 38696/74 Heading F2F  In an anti-skid modulator 10 having a piston 35 separating a variable volume chamber 46, connected to an outlet 18 to brakes, and a variable pressure chamber 38 fed by pressure from an inlet 72 from a secondary source 74, a control member 48 movable with respect to the piston is operated by a fail-safe member 60 such that upon pressure failure at the secondary inlet, the member 60 moves to cause the member 48 to hold open a valve 28 controlling flow from a primary source, e.g. a master cylinder, to the outlet, the members 48, 60 having cooperating parts constituting a valve which, upon pressure failure at the secondary inlet, closes communication between the variable pressure chamber 38 and the secondary inlet to hold the piston stationary. A skid signal actuated solenoid 84 causes an inlet valve constituted by a shoulder 100 of a needle valve member 96 to abut a wall of the housing to block flow from the secondary source 74, e.g. an accumulator, or power steering system, to the chamber 38 to cease actuation of the piston 35; further solenoid movement moves a hollow stem 92 from the needle valve member 96, constituting an outlet valve, to allow flow from the chamber 38 to a sump 78 via a hole 94. Upon such pressure decrease in the chamber 38, the piston 35 and the control member 48 move rightwardly (the latter originally being held to open the valve 28 by a circlip 52 engaged by the piston) to close the valve 28 and increase the volume of the chamber 46.
Patent GB-1275079-A (GB)
Title: Improvements in or relating to measuring instruments
Inventor: JAKO JANOS JOSZEF
IPC: G01R27/28
Filed: 1969-08-01
Abstract: 1275079 Measuring resonant frequency STANDARD TELEPHONES & CABLES Ltd 29 July 1970 [1 Aug 1969] 38731/69 Heading G1U In order to compare the resonant frequency of a resonant circuit 1, Fig. 1, with the frequency of a sine wave alternating current, the circuit is connected in series with a resistor 2, the sine wave is applied across the series connection, and the phase of the potential across the circuit is compared with the phase of the sine wave, as described the phase difference is determined by producing pulses whose widths correspond to the phase difference, and using these pulses to charge a capacitor, which is reset at the end of every cycle, so that its average potential, which may be displayed on a logarithmically graduated meter, corresponds to the required phase difference. The arrangement can be used when tuning the resonant circuit: the sine wave is set to the desired frequency and the resonant circuit adjusted until there is no phase difference.
Patent GB-1018732-A (GB)
Title: Vehicle for carrying fluent granular material in bulk
Inventor: ATKINSON RICHARD LESLIE
IPC: B60P1/60
Filed: 1963-10-03
Abstract: 1,018,732. Pneumatic discharge for vehicles. ATKINSON'S OF CLITHEROE Ltd. Dec. 29, 1964 [Oct. 3, 1963], No. 38893/63. Heading B8E. A vehicle having a container 10 for bulk fluent granular material, such as coal, has a belt conveyer delivering the material to an outlet trough 11 opening at the bottom into a rotary seal 13 in turn opening into a discharge pipe 17. The seal 13 is driven by gearing 19 to discharged spaced quantities of material into the pipe 17 which is open at each end. Discharge can be made to either side of the vehicle by connecting a flexible pipe, by quickrelease couplings, between the opposite end of the pipe 17 and the fixed outlet of an air compressor mounted on the vehicle.
Patent GB-1017386-A (GB)
Title: Multiple memory system
IPC: G11C21/02
Filed: 1962-10-15
Abstract: 1,017,386. Delay line data stores. TOKYO SHIBAURA DENKI KABUSHIKI KAISHA. Oct. 15, 1962, No. 38989/62. Heading G4C. A time-division multiplex data store comprises a delay line 16 and input and output gates 10-13 and 18-21, the input gates being fed with four sampling pulse trains SP1-4 and the output gates with a cyclic permutation of these trains which separate three of the four separated data words into flip-flops 24-26 and the fourth direct to one of the synchronous output flip-flops. Waveforms illustrating the action appear in Fig. 5 (not shown).
Patent GB-1255920-A (GB)
Title: Improvements in devices for ventilating pockets in multicylinder driers
Inventor: BERG NILS-CHRISTIAN
IPC: D21F1/00
Filed: 1970-08-13
Abstract: 1,255,920. Ventilator for web-dryer. VALMET OY. 13 Aug., 1970 [9 Sept., 1969], No. 39004/70. Heading F4G. A device for ventilating the pockets 5 of multicylinder web driers which incorporate porous felt drying rolls 4 comprises a partition 7 and a flap 7<SP>1</SP>. The pockets 5 are formed by two free runs of the web 3 to be dried, the surface of a large roller 1c and the felt roll 4. The partition 7 extends parallel with the rollers, radially from the felt roller 2 and between the web rollers 1a and 1b. Several sections 7<SP>1</SP> are hinged at 8 to the partition 7 so that their ends remote from the hinge are close to the felt roller 2 when they are in the position shown to the left of Fig. 1. In this position, a non-cyclic air stream in the direction ADC is produced but in the position shown to the right of Fig. 1, a cyclic flow ABDC results. Three further embodiments comprise an additional set of air ducts (9), Figs. 3, 4 (not shown); a box-like partition (7), Figs. 5, 6 (not shown), and vertically sliding sections (7<SP>1</SP>), Figs. 7, 8 (not shown).
Patent GB-1012873-A (GB)
Title: Mower
IPC: A01D34/30
Filed: 1963-10-04
Abstract: 1,012,873. Mowing machines. FORD MOTOR CO. Ltd. Oct. 4, 1963 [Oct. 18, 1962], No. 39092/63. Heading A1F. A tractor-mounted mower comprises a support 16 attachable to a tractor and a cutter-assembly 17 carried by the support and provided with a power-driven reciprocating blade, the assembly being pivotally mounted on the support about an axis extending transversely of the direction of movement of the blade and downwardly inclined towards the blade in order to reduce the vertical distance between the blade and the axis so as to minimise the turning moment of the blade about the axis. The axis is defined by a pair of aligned bearings 56, 57 by which the whole cutterassembly is pivoted upon the lower end of the support 16. The support is pivoted at its upper end upon a frame 10 attachable to the hitch-links of a tractor 15 and carries pulleys by which the drive is transmitted from the power take-off shaft 62 via the belt 67 to a pulley 66 on the cutterassembly. The pulley is fixed to a driveshaft 32 journalled in a housing 30 mounted on the cutter-bar 20. The drive-shaft is cranked and the cranked end 35 is journalled in a sleeve 36 which is journalled in a yoke 41 by a pair of horizontal pivots 45. The yoke is also pivoted within the housing 30 by vertically-spaced pivots 42, 44 and includes a forwardly-extending arm 47 which is attached to the knife-bar by a pivot-bolt 50. Rotation of the drive-shaft oscillates the sleeve 36 about the vertical and horizontal pivots 44, 42 and 45 but only the horizontal component of motion is transmitted to the knife-bar via the arm 47. The mower incorporates a break-back arrangement which includes a sleeve 60 encircling a spring connected between the frame 10 and the lower end of the support 16.
Patent GB-864321-A (GB)
Title: Electron tube
IPC: H01J7/18
Filed: 1958-12-04
Abstract: 864,321. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 4, 1958 [Dec. 5, 1957], No. 39166/58. Class 39(1). In an electron discharge device, particularly a diode comprising an envelope 15, Fig. 2, sealed to a wafer stem 13, Fig. 1, through which pass the leads 27 to a cathode 23, there is provided an anode 17, Fig. 2, surrounding the cathode and an electron shield 29 disposed between the electrodes and the wafer stem 13 and in the shield 29 are disposed a number of chambers 33 designed to contain getter, and arranged when the getter is flashed to direct material towards the stem 13. The anode is preferably cup-shaped and mounted on top cap 19 as shown. The leads 27, Fig. 1, which pass through stem 13 are sealed through glass beads 37, as shown, so as to lengthen the leakage path between the various leads. The getter chambers are preferably arranged to direct getter material into the space on the stem between the glass beads. A shield member 24 is provided on one cathode lead to minimize electrostatic forces acting on the cathode.
Patent GB-1371557-A (GB)
Title: Aflatoxin control
IPC: A01N57/12
Filed: 1972-08-23
Abstract: 1371557 Food treatment SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 23 Aug 1972 [25 Aug 1971] 39231/72 Heading A2D A method of controlling the amount of mycotoxin produced by fungi of the class fungi imperfecti comprises subjecting the fungi to a compound of formula: wherein R and R' are C 1-4  alkyl and may be the same or different, A is H or CH 3 , Y is H O # or halogen and Z is halogen or -COR. The compound may be applied as a solution, in the vapour phase or the compound may be incorporated in a resinous material from which it is slowly released. The method may be used in the treatment of grain and nuts.
Patent GB-1018822-A (GB)
Title: Improvements in and relating to babies' feeding means
IPC: A61J11/00
Filed: 1961-11-03
Abstract: 1,018,822. Feeding bottle teats. H. A. MOONFASIR. Oct. 26, 1962 [Nov. 3, 1961; June 8, 1962], 1962], Nos. 39355/61 and 221963/62. Heading A5X. A valve for insertion in a feeding bottle nipple to prevent back-flow of liquid from the nipple to the bottle comprises a plate 10 with a three-lobed aperture 11, and a valve closure 13 consisting of a stem having at one end a head 13b which closes the aperture when the nipple is compressed and at the other end a retaining stud 13c which only partially overlaps the aperture when it abuts the plate. The plate is held in place in the nipple by an internal flange 16a The nipple has a base flange 16b which is secured to a feeding bottle by a screw cap 18, the periphery of the aperture 18a in the screw cap being spaced from the neck 16c of the nipple. Air enters the bottle through an air hole in the nipple base flange, the hole communicating with recesses 16e in the nipple. The air hole may be covered by the end face 18b of the screw cap and communicate with the aperture 18a through a groove 18c and slots 18d in the screw cap.