baber/WOPTO huggingface dataset:
Patent GB-1533725-A (GB)
Title: Spray apparatus
IPC: A01M7/00
Filed: 1976-06-18
Abstract: 1533725 Crop spraying HORSTINE FARMERY Ltd 8 June 1977 [18 June 1976] 25287/76 Heading AID [Also in Division B2] Apparatus suitable for spraying crops comprises first, second and third discs 16, 17, 18 mounted in vertically spaced relationship on a rotatable drive shaft 14, means 25, 26 for supplying spray material to said first and second discs respectively, and a mask 11 surrounding said first and second discs, and having circumferentially extending slots 28, 30, 31 through which 40 to 60% of the spray material centrifuged from said first and second discs is discharged, the remaining spray material being collected by a frusto-conical portion 21 of the mask and fed via a duct 27 to the third disc 18 to be centrifuged therefrom in a uniform spray pattern on which the spray pattern produced by the material discharged through the slots is superimposed. Fig. 6 (not shown) depicts crop spraying apparatus in which three such devices are mounted on a frame (50) carrying a supply tank (58) and batteries (61) for driving the shafts 14.
Patent GB-1253709-A (GB)
Title: Thiadiazole derivatives
Inventor: WASSON BURTON KENDALL
IPC: C07D263/06
Filed: 1969-05-19
Abstract: 1,253,709. Thiadiazoles. CHARLES E. FROSST & CO. 19 May, 1969 [22 May, 1968; 21 April, 1969], No. 25333/69. Heading C2C. Compounds of the general formula (R = H, Cl, Br, C 1-5  alkyl or alkoxy, C 2-5  alkenyl, C 3-6  cycloalkyl, Y-X-Z (Y = C 1-4  alkyl optionally substituted by Ph or Ph having one or more substituents selected from halogen atoms and OH, C 1-3  alkyl and alkoxy groups; Z= C 1-2  alkyl; X=O, S), R<SP>51</SP> HNCO (R<SP>51</SP>  = C 1-5  alkyl), Ph or Ph-(C 1-4  alkyl) optionally having one or more substituents selected from halogen atoms and C 1-3  alkyl and alkoxy groups attached to the ring, NR<SP>7</SP>R<SP>8</SP> (R<SP>7</SP> = H, C 1-4  alkyl, C 2-4  hydroxyalkyl R<SP>8</SP> = H, C 1-4  alkyl, C 2-4  hydroxyalkyl, Ph or NR<SP>7</SP>R<SP>8</SP> = 3-7 membered ring optionally having one or more substituents selected from OH, C 1-5  alkyl, C 1-3  hydroxyalkyl or R<SP>7</SP> and R<SP>8</SP> are joined through an O, N or S atom to form a 5-6 membered ring together with the N atom to which they are attached, optionally C 1-3  alkyl substituted), 5-6 membered heterocyclic ring linked through a carbon atom and having O, N or S as the hetero atom; R<SP>1,2,4</SP>=H, C 1-3  alkyl; R<SP>3</SP>=H, PhCO, C 2-  4  alkanoyl; R<SP>5</SP>=H, C 1-5  alkyl, Ph C 1-3  alkyl or C 2-5  alkanoyl; R<SP>6</SP>=C 1-20  alkyl, C 2-6  alkenyl or alkynyl optionally having one or more substituents selected from halogen atoms, OH, carboxy, (C 1-3  alkoxy) carbonyl, C 1-4  alkoxy and alkylthio, di-(C 1-3  alkyl) amino, pyrrolidinyl, piperazinyl, piperidinyl, morpholino, thiazolidinyl, thiazinyl, 5-6 membered heterocyclic rings attached through a nuclear carbon atom and having O, N or S as the hetero atom, Ph and PhO optionally having 1-3 substituents selected from halogen atoms, OH and C 1-3  alkoxy groups, Ph optionally substituted by C 1-3  alkyl, pyrrolidinyl, piperidinyl, C 3-6  cycloalkyl optionally substituted by C 1-3  alkyl or 5-6 membered N or O-containing ring, 5-6 membered heterocyclic ring containing O, N or S as the hetero atom and attached through a nuclear carbon atom and optionally substituted by C 1-3  alkyl or 5-6 membered N or O-containing heterocyclic ring, or NR<SP>5</SP>R<SP>6</SP>=4-6 membered ring which may contain in addition to but not adjacent to the N atom one or two different hetero atoms selected from O, S, N and which may be substituted by one or more C 1-3  alkyl radicals) and their salts are prepared by the following routes: optionally followed by esterification. The above compounds are #-adrenergic blocking agents and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-518731-A (GB)
Title: Improvements in or relating to means for demonstrating control operations in electrical and other flow circuits
IPC: H01H9/16
Filed: 1938-08-30
Abstract: 518,731. Diagrams. JACKSON, E. W. Aug. 30, 1938, No. 25354. [Class 146 (ii)] Electric, hydraulic, or pneumatic circuit changes are demonstrated by a diagram comprising a fixed part showing the circuit to be controlled with gaps completed by one of several diagrams on a moving part to complete the circuit of that control position. Fig. 3 shows a four - heat electric circuit with a series - parallel switch, the varying connections being shown by diagrams 12 visible through an aperture 7 in a fixed part 1, the diagrams 12 being formed on a slider 3 having 'explanatory panels 21 visible through a window 20. The slider may travel right through part 1 or, as shown, may carry ears 3a limiting its travel, and the ears may project beyond the sheets 2 of part 1 and act as indicators. According to the Provisional, Specification, the fixed and moving parts may be pivoted together, and the moving part may consist of an arm or disc giving a direct representation of the circuit established atthe switch..
Patent GB-831085-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices
Inventor: JONES BERNARD CURTENELLE
IPC: C30B31/04
Filed: 1956-08-20
Abstract: An alloy consists of iron, nickel, and cobalt, in the approximate proportions 55 : 30 : 15 by weight.  Specification 831,086 is referred to.
Patent GB-922792-A (GB)
Title: Improvements in and connected with frameless boats
IPC: B63B3/00
Filed: 1959-07-24
Abstract: 922,792. Frameless boats. A. BRUMMER July 24, 1959 [July 26, 1958], No. 25476/59. Class 113. The hull of a frameless boat is constructed by joining the top part 1 to the bottom part 2 by e.g. rivetting along the flanges at 14 and by glueing the surfaces 9 and 11 together. When the two parts are joined, buoyancy compartments 16 and 17 are formed which may be filled with a foam material. The bottom part 2 is stiffened by ribs 13 and the flanges 14 support a rubbing strake 15. An outboard motor may be attached to the support 28 and the rail 20 forms an attachment for a sliding hood over the cabin 3. The back supporting bar 29 may be removed and the boat may be transported on a motor car or trailer. The boat is also provided with lights 25, 26 and 27, windscreen 22, hook 24 and steering wheel 21.
Patent GB-682902-A (GB)
Title: Improvements in or relating to automatic couplers for railway and like vehicles
IPC: B61G3/08
Filed: 1950-10-19
Abstract: 682,902. Rail vehicle couplers. ENGLISH STEEL CORPORATION, Ltd., and DADSWELL, C. J. July 24, 1951 [Oct. 19, 1950], No. 25548/50. Class 103 (v). The locking and unlocking lever 18 of an automatic coupling 1 is operated by hand levers 6 pivoted to the plate 4 rotatably mounted on a fixed pin 5. Rotation of the plate 4 reciprocates a linkage comprising link 11, spring link 12 and a chain 17 connected to the locking and unlocking lever 18 the arrangement being such that the spring link 12 retains the plate 4 in the over-centre position to hold the coupling in the unlocked position. The sleeve 19 is preferably screwed on to the piston-rod part of the link 12 to allow of adjustment.
Patent GB-532607-A (GB)
Title: Improvements in or relating to diaphragm pumps for air or like gaseous fluids
IPC: F04B27/04
Filed: 1939-09-11
Abstract: 532,607. Diaphragm air pumps. SPERRY GYROSCOPE CO., Inc. Sept. 11, 1939, No. 25573. Convention date, Sept. 10, 1938. [Class 8 (i)] Diaphragm pumps 26 are disposed around and actuated by an eccentric on a hollow partitioned rotary shaft 3. The pumps circulate air through aircraft instruments &c. by way of inlet and outlet passages 5, 12 open to the two ports of the hollow shaft, which is formed with inlet and outlet ports 36, 37 connected with the passages 39, 43 of the pumps in sequence.
Patent GB-1476714-A (GB)
Title: Motor control systems
IPC: H02P7/29
Filed: 1975-06-17
Abstract: 1476714 Control of D.C. motors RAYMOND CORP 17 June 1975 [12 July 1974] 25699/75 Heading H2J In a steerable vehicle having a pair of drive wheels required to rotate at mutually different speeds as the vehicle is steered and connected to a respective series-field motor M1, M2, each motor is connected to receive power from a common pulse-modulated power circuit, control means are provided to select the polarity relationships between the fields F1, F2 and the respective armatures A1, A2 of the motors to switch the motors between accelerating and plugging conditions, and a normally-closed contactor 15 is operable during plugging to connect the armatures in parallel and is energized during acceleration to interrupt the parallel connection. As described, the vehicle, Fig. 1 (not shown), has a steering wheel and an operator control, Fig. 3 (not shown), for controlling forward and reverse motion, speed and plugging. As shown in Fig. 4, when the steering wheel is within a first range of angles the switches S1R S1L, S2R, S2L are in the positions shown and when either the switch MS1 for forward motion or M2S for reverse motion or plugging is closed, the appropriate forward and reverse contactor coils 1R, 1F, 2R, 2F are energized to connect the field windings F1, F2 of the motors in series with the armatures A1, A2. In a second, greater range of steering angles one of the switches S1R or S1L is changed over to disconnect one of the motors and in a third, greater range of steering angles one pair of switches S1R, S2R or S1L, S2L is changed over to drive the motors in opposite directions. As shown in Fig. 2, the motors are supplied from a common thyristor control circuit which receives pulses over lines 16, 19-21 and 23 from a control circuit described with reference to Fig. 5 (not shown). This circuit basically comprises a flip-flop which has its frequency and period controlled in dependence upon the extent the operator moves the control limitations being imposed on the rate of acceleration and the maximum speed &c. During acceleration and normal movement the coil of contactor 15 is energized to open contactor 1S. Upon plugging, relay coils K1 and K2, connected across the armatures with diode rectifiers XR1 and XR2, are energized which cause respective contacts in the circuit of Fig. 5 to close and de-energize the coil of contactor 1S to close contactor IS and connect the armatures in parallel. A time delay is operative between movement of the operator control and the energization of the coil of contactor 1S, energization being prevented if a plugging condition occurs during the delay period. Closing of the switches of the coils K1 and K2 also varies the duty cycle of the circuit controlling the thyristors.
Patent GB-518031-A (GB)
Title: Indicator systems for wireless apparatus or the like
IPC: H03J7/32
Filed: 1938-09-02
Abstract: 518,031. Wireless receiving apparatus. STANDARD TELEPHONES & CABLES, Ltd. Sept. 2, 1938, No. 25743. Convention date, Sept. 9. 1937. [Class 40 (v)] [Also in Group XXXVI] A resonance indicator device for a radio receiver comprises a neon tube 3 fed from the anode circuit of a valve whose input is directly coupled to the detector, the tube being cyclically rotated by a driving motor 2 together with the tuning condenser 1 of the set, and co-operating with a stationary translucent dial 4 whereby, due to stroboscopic effect, illumination is shown at all frequencies in the range covered whereon a transmission is received. Alternatively the dial may be coated with phosphorescent material and the frequency range explored once only ; the tuning element may then be braked or arrested by a stop at the desired tuning position. The cyclic frequency variation may be effected electrically, e.g. by varying inductance by varying d.c. excitation of magnetic cores or using the reflected capacity of a thermionic reactance. The frequency response curve of the latter arrangement is of the saw-tooth form, and in a further embodiment this potential is used to control the horizontal sweep of the spot of a cathode ray tube. The set may be tuned to any one of the stations indicated by a manual potentiometer and a commutator, the latter to suppress the saw-tooth oscillations Automatic frequency correction circuits of known type may be employed with this embodiment. A circular path indication using a cathode ray tube may be employed by applying control potentials of sinusoidal form to the frequency-varying reactance; a second harmonic of the control frequency is then applied to one deflector system and the same harmonic dephased by a quarter cycle to the other. The stations received are then indicated by radial deflections of the cathode spot along the circular track of the spot on the screen. The invention may be applied to frequency measurement, station finding, location of call circuits &c.
Patent GB-707522-A (GB)
Title: Improvements in or relating to flow restricting valves
IPC: G05D16/06
Filed: 1952-10-14
Abstract: 707,522. Valves. LA BOUR, H. E. Oct. 14, 1952 [July 26, 1952], No. 25761/52. Class 135 A multiple beat lift valve is provided with two valves seats 7, 8 of the same diameter provided on a flanged ring formed with a cup 6, the ring being threaded externally and supporting the cup by means of two depending webs between which the lower part of the double closure member 11 can be inserted, and the latter comprises two cylindrical members interengaging spigotwise and having spiders 13, 18 at their outer ends connected together by a strut 12. There is a slight lost motion between the head of the closure member and the lower end 20 of the valve spindle 21. The latter moves vertically and carries a cam follower roller 29 which is engaged by a slot 30 in a horizontally moving slide 31. A loading spring 41 acting on the slide urges the valve to the closed position and the valve is opened by a subatmospheric pressure applied to a diaphragm 33 so as to cause the slide to move to the right. The valve controls the flow of oil to a pump and the diaphragm is subject to the pressure at the inlet of the pump, i.e. as at the valve outlet, or to the pressure at the eye of the impeller of the pump. Specification 707,521, [Group XXVI], is referred to.
Patent GB-637679-A (GB)
Title: Improvements relating to reciprocating pumps
IPC: F04B1/04
Filed: 1947-09-23
Abstract: 637,679. Reciprocating pumps. EDWARDS BROS. (TIPPERS), Ltd., EDGE, J. R., and COSGROVE, J. Sept. 23, 1947, No. 25825. [Class 102(i)] In a reciprocating pump, a body 10 is bored to provide two cylinders 11, 12 and a bar is shaped to form two pistons 13, 14 and has a slot 20 in which operates a crank pin 19 to reciprocate the pistons. Liquid is fed to the orifice 24 and drawn through the bores 25, 26 and valves 27, 28 in the pistons and delivered through the valves 22. The bores 26 are extended at 29, 30 to permit the liquid to lubricate the pin 19 in the slot 20. Specifications 497,005, 597,690 and 600,298 are referred to.
Patent GB-518828-A (GB)
Title: An improved carton or wrapper for electric lamps and other articles
IPC: B65D5/50
Filed: 1938-09-05
Abstract: 518,828. Cartons for electric lamps &c. BARTON, C. N. Sept. 5, 1938, No. 25880. [Classes 18 and 94 (ii)] A protective carton or wrapper for electric lamps, radio valves &c. moulded from paper pulp &c. comprises four diagonal sheets 2 between which are four projections 9 constituting a container, the inner surfaces being moulded as shown to fit the configuration of the article. The wrapper may be in four separate sections.
Patent GB-1134312-A (GB)
Title: Improvements in sailing ships
IPC: B63H9/06
Filed: 1967-06-06
Abstract: 1,134,312. Sailing ships. A. P. PEDRICK. 6 June, 1967, No. 25965/67. Heading B7V. A sailing ship has a central main mast 1 rotatable by an engine 8 at its base, horizontal upper and lower booms 2, 3 being secured to the main mast whilst auxiliary masts 4 extend between the booms. To each of the masts 4 is hinged a pair of rectangular panels or sails 5 of light alloy, fibreglass or stretched canvas. The position of the booms relative to the fore and aft line of the ship and the angle between the panels 5 in each pair is set by the engine 8 and by servomotors respectively which are all controlled from a cabin 6. Thus with the wind on the beam, Fig. 2B, the booms are set fore and aft and the panels set at the angle shown to provide a forward driving force. With the wind from aft the booms can be set athwartships and the panels aligned therewith, Fig. 2C (not shown), or, with the wind on the quarter, the booms set fore and aft and each of the panels of the pairs set at an equal angle thereto, Fig. 2D (not shown). The course of the ship may be automatically controlled by radio signals received by an aerial 10 either directly from land based stations or via a satellite and, if desired, the ship can sail unmanned under this control for the major part of its voyage. At the beginning and end of its voyage the ship is manned by a crew embarking and disembarking by helicopter for which a platform 13 is provided. The ship may also carry a nuclear rocket 14 for defence &c. purposes.
Patent GB-656499-A (GB)
Title: Improvements in and relating to electric frequency transformation systems
IPC: H01F38/04
Filed: 1948-10-05
Abstract: 656,499. Frequency changing. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 5, 1948, No. 25970. Convention date, Oct. 18, 1947. [Class 38 (ii)] [Also in Group XL (c)] A frequency transforming system comprises a saturable reactor 8 energized from an A.C. supply 1 saturating during opposite phase peaks of the latter, and applying impulses to a resonant circuit 3 tuned to a harmonic of the applied frequency, coupled with a load circuit, and simultaneously with the impulses a previously-charged condenser 5 discharges through the saturable reactor 8 to increase the impulsing effect. The condenser is charged through a phase-shifting circuit 11 for advancing and retarding the charging of condenser 5 for opposite phases of the A.C. input and comprising an adjustable self or other saturable reactor 12, in series with the condenser 5 through a choke 6. A shunt condenser 16 and inductance 17 in series of net capacitive reactance greater than the inductive reactance of the impulse circuit maintains substantially constant the output impulse voltage with change of phase due to circuit 11, and choke 6 suppresses interaction of the impulse circuit with the supply. The phase displacement between pulses is adjustable by varying the D.C. current through the reactor 8. A three-phase A.C. supply may be used, each phase operating independently as above and applying pulses sequentially to a common tuned circuit, and a switch may be used to reverse the phase of the pulses from one phase circuit, applying them across a tapping on the tuned circuit, so that together with the use of the pulse phasing means the resonant circuit may be tuned to any multiple of the supply frequency and not necessarily a multiple of three.
Patent GB-492421-A (GB)
Title: A new or improved milking pail
IPC: A01J9/10
Filed: 1937-09-25
Abstract: 492,421. Milking pails and stools. THOMSON, G. S. Sept. 25, 1937, No. 26071. [Class 66] [Also in Group XIV] A milking - pail comprises a cylindrical body part 1 provided with a tapered open - mouthed neck portion 5 at the end opposite to the closed end 4 and mounted upon feet 3. On the upper side of the body a seat 8 is detachably mounted by means of legs 9 engaging behind upstanding lugs 10, a third lug (not shown) projecting from the rear side of the seat taking within a laterally disposed socket. Transversely disposed handles 6, 7, are provided, and a gauze and cotton filter is provided fitting in and over the mouth 13. A modified construction is described in which the legs 9 are engaged and may be adjustably set in grooved holders, and one in which the seat is fixed and disposed to the rear of a single centrally situated handle.
Patent GB-203916-A (GB)
Title: Improvements relating to electric switches and fuses for use in connection with dynamo-lighting and battery-charging systems of motor-vehicles and the like
IPC: B60R16/00
Filed: 1922-09-28
Abstract: 203,916. Holt, W., and Brolt, Ltd. Sept. 28, 1922. Switchboards.- A switch-fuse in the dynamo field circuit of a motor vehicle consists of an insulating plate 1 carrying contacts 2 between which are connected a fuse 3, the plate 1 being secured to a sliding operating rod 10 with a handle 15 which when depressed brings the contacts 2 into engagement with fixed slip contacts 7. The rod 10 works in a collar 16, which is integral with a detachable plate 11 secured by screws 12 to the front plate 13 of a switchboard thus enabling the fuse carrier to be withdrawn through an aperture 14. The fuse wire 3 is threaded through holes 4 in the plate 1, Fig. 6, its ends being pressed between the contacts 2 and the plate 1. The plate 1 has an extension 17 which by working between the fixed contact clips 7 acts as a guide to the moving contact member. The ends 5 of the contacts 2 are brought over through holes 6 in the plate 1 and hammered down.
Patent GB-976989-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/38
Filed: 1961-07-19
Abstract: 976,989. Windscreen wipers. TRICO PRODUCTS CORPORATION. July 19, 1961 [July 19, 1960], No. 26187161. Heading A4F. A windscreen wiper blade 21 is detachably secured to a harness member by a latch member 29 of generally U-shaped sheet material and which is retained on the blade 21 by the engagement in a slot 34 therein of a projection 35 on the backing strip 20, and is provided with notches 32 for receiving claws 28 on the harness member from which it may be disengaged by pressing tabs 33 between the fingers to squeeze the legs 30 of the member 29 together. The blade 21, backing strip 20, and latching member 29 may then be slid away as a unit from the harness member. In another construction the latch member has downwardly turned tabs for engagement in an aperture in the backing strip, the projection 35 being omitted. In two further constructions the latch member has a single notch only for receiving one of the claws of the harness member.