baber/WOPTO huggingface dataset:
Patent GB-972502-A (GB)
Title: Apparatus for making castings
Inventor: DREVER JAMES ROSS
IPC: B22D47/00
Filed: 1961-09-06
Abstract: 972,502. Foundry plant. GRIFFIN WHEEL CO. Sept. 6, 1961, No. 32047/61. Heading B3F. A foundry plant comprises a pouring station, an open conveyer circuit for transporting castings from the pouring station through casting processing stations, two closed conveyer circuits for transporting respectively the cope and the drag from the pouring station through processing stations and back to the pouring station, part of the open conveyer circuit lying in a straight line path and forming a common part for all three circuits, a refractory pouring tube preheat station adjacent the straight line path and close to the pouring station, a mould assembly station in the straight line path immediately preceding the pouring station, means for transferring preheated pouring tubes to the pouring station, and a mould disassembly station in the straight line path following the pouring station. The plant described is for making railway wheels pressure-cast in two-part graphite moulds, and comprises three adjoining sections, the melting furnace room, Fig. 1b the casting room, Fig. 1a, and the cleaning room, Fig. 1. The furnace room, Fig. 1b comprises two furnaces 10 in a ladle pit 28, and a scrap bin area 14 from which the charge is transported to the furnaces by a crane 16. A ladle filled from the furnace is transported to the pouring station 12 by crane 17, being positioned in a pit 15, and a pouring tube and tank cover assembly from the pouring tube processing and preheating area 18, is lowered on to the tank by a crane 23. Mould and cope sections are assembled on a reciprocating pusher conveyer 24 and placed by the, crane 23 in position over the pouring tube. After filling, the mould is lifted on to the reciprocating pusher conveyer 26 by the crane 23. The cope is removed by a crane 40, placed on a conveyer 42 and travels through processing stations including core and riser line removal station 110 clearing station 112, rotating core baking table 125, sand being supplied from bins 130 and mould wash spraying station 15. If the copes are too hot to spray they travel along a cooling by-pass 154, 168. The copes accumulate on conveyers 34, 38 for the next cycle. After removal of the cope the casting is removed from the drag by crane 46 and placed on one of a pair of conveyers 48, 50 and passes through a kiln 210 which allows slow cooling of the castings which then proceed to the wheel-processing station including sprue removal, stamping station 222, hub-cutting station 224, heat-treatment furnace 238, hub-cooling station 246, 248, stacking device 250 and storage area 258. From the storage area the wheels pass through shot blasting, grinding, boring &c. stations, finally reaching the loading platforms 304. The drag is placed on conveyer 58 and passes through cleaning and mould wash-spraying stations 64, 78 and proceeds via conveyer 88 to conveyer 98 in readiness for the next cycle.
Patent GB-227605-A (GB)
Title: Improvements in a thermostatic control for oil burners
IPC: F23N5/24
Filed: 1923-12-21
Abstract: 227,605. Shore, W. E. Dec. 21, 1923. Electrically controlling fuel supplies.-The oil supply to an oil burner is cut off in the event of extinction of the flame, by means of a thermostat situated in, or in an extension of, a tubular conduit arranged contiguous to the path of the flame. In the furnace shown, water from the boiler 1 circulates through a pipe 9, a loop 8, and a pipe 10, the flame from the burner 5 playing directly on the loop 8. If the flame is extinguished, the consequent cooling of the water in the conduit causes a thermostat arranged in an extension 11 on the pipe 10 to operate through a connector 12 a circuit-breaker on the control board 13 to arrest the current to the motor driving the fuel supply mechanism, or otherwise cuts off the fuel supply.
Patent GB-447190-A (GB)
Title: Apparatus and circuits for indicating or controlling electrical phase differences
IPC: G01R25/00
Filed: 1934-11-08
Abstract: 447,190. Automatic control systems. LABOUCHERE HILLYER BAINBRIDGEBELL, National Physical Laboratory, Tedding- ton, Middlesex. Nov. 8, 1934, No. 32091. [Class 38 (iv)] [See also Group XXXVI] Oscillation frequency.-A cathode-ray oscillograph for controlling phase and frequency differences, and wherein two electromagnetic or electrostatic fields rotating in opposite directions are combined and are applied to the plates of the oscillograph, has circuit connections such that when a change in phase or frequency of one of the fields occurs, the rectilineal path of the jet is deflected in position and is caused to operate upon one of the field sources to maintain synchronism. Sources 1, 4 are connected through resistances and condensers 2, 3, 5, 6 to deflector plates 8 ... 11, the anode 7 being connected between the resistors and condensers. When collector plates are provided the deflection of the jet is utilized to energize the windings of a differential relay connecting a reversible motor for varying the condenser 3 or 6 to effect synchronous running of the sources 1, 4. Specifications 366,989 and 444,173, [both in Group XL], are referred to.
Patent GB-671700-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/54
Filed: 1949-12-14
Abstract: 671,700. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1949 [Dec. 27, 1948], No. 32113/49. Class 39 (i). A discharge device comprises liquid caesium or rubidium and a cathode supported from a ceramic member which forms part of the metal envelope and is adapted to be maintained at a temperature above that of the liquid metal by radiation from the cathode. The cathode comprises nickel vanes, coated with nickel mesh 10, Fig. 1, and supported on a nickel tube 9 which is sealed to the anode container 1 through collar 12, alumina or magnesium silicate insulator 11, brazed sleeves 14, 15 and header 7. The seal between metal and ceramic may be made in accordance with Specification 656,724, [Group XXXVI]. The cathode tungsten heater 23 is wound on a ceramic sleeve 22 on a rod 16 and is welded at one end to the rod and at the other to a stud 24 in the tube plug 25. The terminal rod 16 is sealed to the tube 9 through a sleeve 20, glass cylinder 19 and cap 17 made of an alloy of iron, nickel and cobalt and strengthened by metal plug 18. The cathode is surrounded by a heat shield 30 perforated for the discharge and lined with metal foil. A perforated ceramic disc supported by the tube 9 may space the lower end of the cathode from the anode. The lower header 2 holds the caesium container 3 which during operation has the lowest temperature of any part. Series-connected cooling- jackets are joined by the cylinder 31, with a welded spiral baffle 32, and members 33, 34 with spiral baffles 35, 36. The jacket formed by member 34 is extended over the insulator 11 by bellows 39, sleeves 38, 41 and insulating sleeve 40. Circulation of the silicone oil is effected by baffles 42, and is supplied through conduit 37 and returned to the radiator 45, and tank 46 by pump 47. Starting may be facilitated by a heater 50 spirally wound on the jacket 31. The caesium receptacle 3 is maintained at a temperature of 150-190‹ C. to produce a pressure of 9.2-54 microns. The cathode temperature for the monatomic caesium layer thereon is preferably 750‹ C.; temperature of the insulator 11 and anode and discharge currents are also specified. In a further form, the anode container comprises nickel-iron cylinders 51, 52, Fig. 3, sealed together through a ceramic member 58, and to an iron header 53 which supports the cathode 54 and carries the caesium receptacle 64. Splashing of the caesium is limited by tube 65. A copper anode 59 carries a contact stud 62 supporting cooling fins 63. The cathode 54 comprises mesh covered vanes in a container 60 open only at the end facing the anode. A housing 70 contains glass wool the density of which varies with the desired rate of cooling of the various tube parts.
Patent GB-624524-A (GB)
Title: Improvements relating to radio communication systems and apparatus
IPC: H04L27/10
Filed: 1946-10-30
Abstract: 624,524. Pulse modulation; frequency modulation; duplex radio signalling. MILLING, M. C. CROWLEY-, MILLER, C. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 30, 1946, No. 32232. [Class 40 (v)] In a radio transmitter-receiver which generates a transmitted signal consisting of a sinewave whose frequency is changed from one value f<2> to another value f<1> for short regularly repeated intervals, the duration of the intervals is varied according to the intelligence it is desired to transmit. Synchronizing pulses, derived from the receiver section of the waveform (1) (Fig. 1A) trigger a multivibrator giving a waveform (2), which is fed together with a modulating signal (3) to an amplifier so biassed that only positive peaks (4) are obtained. The variable pulses so formed are fed to a limiter giving a series of rectangular pulses (5) of varying length and of such a value as to vary the natural frequency of a reflex velocitymodulated valve oscillator from f<2> to f<1> when applied to the reflecting electrode. The oscillator output (6) is such that the pulses of frequency f<1> start midway between the synchronizing pulse (1) from the receiver section. At the receiver, a mixer is fed by signals (7) from a distant co-operating station and in addition with unmodulated signals from its own oscillator (8) so interlaced that the output from the mixer will consist of varying width pulses (9) of frequency f<1>-f<2>. The pulses are the amplified and limited to give waveform (10). Part of the output is rectified and smoothed to give an audio output (11) and (12), the unmodulated pulses having no effect, while a further part is differentiated (13) and rectified to produce pulses (14) which are used as synchronizing pulses for the transmitter to ensure correct interlacing.
Patent GB-1425335-A (GB)
Title: Machine for casting concrete slabs
IPC: B28B3/02
Filed: 1973-07-09
Abstract: 1425335 Vibrating concrete N HJARNO KNUDSEN AS 9 July 1973 [8 July 1972] 32573/73 Heading B5A A concrete slab is cast in a mould 1, and a plate 9 pivoted about a vertical support 17 to a position over the mould is lowered to tamp and transmit vibrations to the slab upper surface. The plate 9 is mounted on a vibrator 8 comprising a motor driven shaft and eccentric. A handle 13 is used to oscillate the plate 9 from side-to-side if necessary to contact all the exposed concrete. After vibrating, the plate 9 is pivoted away and replaced by a pallet held against the mould by pivoted arms 3, which are gripped by an operator simultaneously with mould handles 4 to invert the mould, slab and pallet, aided by a cylinder 15. A table 6, which is counterbalanced, or moved by a pedaloperated hydraulic or pneumatic mechanism 16 downwards, removes the pallet and slab from the mould while this is supported in its inverted position by stops 7 abutting a suspension system 5.
Patent GB-498348-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L29/04
Filed: 1937-11-26
Abstract: 498,348. Pipe couplings. ELEKTRONMETALL GES. Nov. 26, 1937, No. 32649. Convention date, Feb. 15. [Class 99 (i)] An elbow coupling for oil-brake pipes comprises a coupling - member 1 which fits within a coupling-member 2, each coupling - member having a valve, the valves being actuated by coupling and uncoupling, and the valve stems 10, 22 being arranged at an angle. The valve stem 22 engages a conical surface 5 to open the valve, and the stem 10 is engaged by the cap-nut 16 which is held rotatably by the member 2 and screws on to the extension 6 of the member 1.
Patent GB-486075-A (GB)
Title: Improvements in or relating to storage bins furnished with indicators or control mechanisms for use in regulating the level of materials therein
IPC: H01H35/18
Filed: 1937-11-27
Abstract: 486,075. Controlling level of material in hoppers. EUROPEESCHE FULLER VERVOERMAATSCHAPPIJ, N. V. Nov. 27, 1937, No. 32818. Convention date, Nov. 28, 1936. [Class 78 (i)] To control the level of material in hoppers, by apparatus arranged to give a signal or effect an automatic control of feeding or delivery whenever the material rises above or falls below a predetermined level, use is made of a motor which normally drives a paddle immersed in the material and which is adapted to be moved bodily through an arc when the paddle is stalled, thus operating the control device. Fig. 1 shows a motor 19 driving the paddle 14 on the shaft 11 provided with a flexible intermediate portion 13. The paddle is provided with a cylindrical wall 15 to minimize the effects of surging of the material and is stalled when completely immersed in the material. The continued rotation of the motor then causes the bevel wheel 28 to move round the bevel wheel 26 on the paddle shaft and so moves the motor angularly about the pivot 30 against the action of a weak restoring spring. This causes a cam 35 to engage a pin 36 of a switch and open the motor circuit to stop further movement and also initiate mechanism for stopping the feed. A second appliance mounted near the base of the hopper may re-start the feed when the paddle rotates on being freed from the material. A modification is shown in which a vertical motor is used. The members 35 and 37 can both be adjusted to vary the time of breaking the contact 36.
Patent GB-1197912-A (GB)
Title: Improvements in or relating to Regulated d.c. Power Supplies
Inventor: JENNER WILLIAM GEORGE PETER
IPC: G05F1/573
Filed: 1967-07-17
Abstract: 1,197,912. Automatic voltage control. HAWKER SIDDELEY DYNAMICS Ltd. July 17, 1967, No.32826/67. Heading G3R. A direct voltage stabilizer comprises a series transistor 1 connected with its collector on the output side and having a base drive from an amplifier 2 responsive to output voltage variations, as detected by a circuit including a voltage divider 3 and a reference Zener diode 4, there being connected in a parallel channel across the collector emitter path of the transistor 1 a voltage breakdown device 6, e.g. a Zener diode. The diode 6 will conduct only when the difference between input and output voltages exceeds its breakdown voltage; this condition obtains when the circuit is first switched on, thus enabling the amplifier 2 initially to apply bias to transistor 1, whereby the output voltage is established; there-after the said difference will be less than the breakdown voltage of the diode 6 which will then be non- conductive. A current limiting resistor 7 may be provided, and as shown in Fig.4, the diode 6 may be connected to the junction between a resistor 9 and a Zener diode 8 connected across the input terminals, the arrangement then being such as to ensure that the voltage applied to the diode 6 during normal operation is less than the sum of the output voltage and the breakdown voltage of the diode 6 so that the diode 6 will not conduct even if the input voltage should rise to a level greater than the said sum.
Patent GB-1405823-A (GB)
Title: Vibrating quartz crystal and other time base oscillator horological  instruments
IPC: G04C13/10
Filed: 1973-07-10
Abstract: 1405823 Electric timepieces UNION HORLOGERE DU GROS VOLUME GROUPEMENT D'INTERET ECONOMIQUE 10 July 1973 [11 July 1972] 32916/73 Heading G3T In a timepiece having a time standard, such as a quartz crystal oscillator 1, which provides pulses via a frequency divider 3 and an amplifier 4 to drive an oscillatory electro-mechanical transducer and a time display train which includes a seconds spindle 6, a rotor 30 of the transducer is freely pivoted on the spindle 6 and carries a pawl 11  which drives a ratchet wheel 9 fixed to the spindle. The pivotal angle of the rotor is limited to about 9 degrees by a fixed stop 29 acting in a slot in one arm of the rotor, the wheel 9 having 60 teeth and also being engaged by a non-return pawl 12. The spindle 6 thus moves with the rotor in the drive direction and friction between these parts occurs only in the reverse direction of the rotor. Reverse torque is provided by springs 21, 22 fixed to the rotor and to a circuit board 20 and providing electrical leads to coils 8, 8'which are connected in series and attached to respective arms of the rotor. The coils co-operate with fixed cylindrical magnets (37, 37' Fig. 6 not shown) in soft iron cups 7,7'. Tubular magnets with iron centre-pieces may alternatively be used. As shown the timepiece is a clock with a case 24 containing a battery 28 and the movement assembly, and having slides 25, 25' to locate the board 20. Each of the pawls 11, 12 contains an aperture (39), Figs. 9, 10 (not shown) through which some of the ratchet wheel teeth pass and is fixed to the rotor or to a support 13 by a tongue (40) on one edge of the pawl and by engagement with three fixed pillars (42, 42', 43).
Patent GB-306635-A (GB)
Title: Improvements in and relating to brake apparatus for vehicles
IPC: B60T13/36
Filed: 1927-12-06
Abstract: 306,635. Consolidated Brake & Engineering Co., Ltd., Palmer, B. W., and Cardwell, C. H. Dec. 6, 1927. Fluid-pressure; covers and protectors for brakes.-A control valve for fluid pressure brakes particularly for motor vehicles comprises opposed differential pressure members positively connected together and having their pressure areas facing away from one another, arranged in two chambers in communication with one another and the brake cylinders, the operative connection, incorporating a spring, from the driver's pedal being made between the pressure members and the exhaust passage passing through one of the pressure members to the atmospherical space between them and adapted to be closed by the exhaust valve connected by a loose connection to the inlet valve. A lever 15, Fig. 2, connected to the foot pedal operates in a slot in a connecting rod 28 connected by the two pressure members or pistons 27, 29, and on brake operation first moves a seat 36 on the piston 27 against the exhaust valve 37 and then bv means of a loose connection 39 with the exhaust valve opens the inlet valve 25. Pressure admitted from a pipe 22 builds up in chambers 23, 30 and in the brake cylinder connected at 24; until the pressure on piston 27 which is the larger of the two and the pressure of springs 26, 33 overcomes the pressure on the piston 29 and the valve 25 is reclosed, to maintain a certain degree of brake pressure. Graduated braking is thus obtained, and graduated release is also obtained by lessening the depression of the pedal which will allow the pressure members to move and open the exhaust valve 37, this movement of the pressure members will stress spring means in the valve connection which will re-close the exhaust valve after a certain reduction in pressure in chambers 23, 30 and the brake cylinders. The spring means comprises two levers 16, 17, Fig. 5, pivoted at 44 and pivotally connected to the valve lever and the brake pedal rod respectively. The lever 17 is provided with a pocket 46 in which slides an adjustable spring plunger 47 carrying a roller 52 co-operating with a pocket 53, Fig. 6, and an incline 54 on the lever 16. The roller is normally located in the pocket 53 which allows a small travel of the roller therein. This spring means permits of the necessary movement of the pressure members in brake application. A modified valve is shown in which diaphragms replace the pistons 27, 29. Flanges 42, 43, Fig. 2, are provided on the valve casing and lever 15 respectively to prevent entrance of dust. The rod from the brake pedal is connected to the brake rodding by a lost motion connection in order that the brakes may be applied directly by foot pressure.
Patent GB-537663-A (GB)
Title: Improvements in or relating to apparatus for the remote control of a speed regulating governor
IPC: H02P23/16
Filed: 1939-12-28
Abstract: 537,663. Electric control systems. SULZER FRERES SOC. ANON. Dec. 28, 1939, No. 32973. Convention date, April 6. [Class 40 (i)] The centrifugal governor 2 of an internalcombustion engine 1 is adjusted for speedregulation by the driver's hand lever 19, which moves the armature 16 of a transmitter 9 energized from A.C. mains 10, and so produces a resultant e.m.f. in a circuit 17, 18, including the armature 13 of a receiver 8. Normally the armature windings have induced e.m.fs. which neutralize one another due to their being in similar positions relative to their fields 11, 12, and the resultant e.m.f. rotates armature 13 one way or the other, depending on its direction, and, by means of linkage 7 and piston 5 and valve 6, varies the tension of the governorcontrol spring 3. The engine-driven generator 20 is excited to constant voltage by means of the resistance 21, 23 operated by piston 5. In a modification, Fig. 2 (not shown) a D.C. shunt generator has three additional brushes which are rotated by the driver to vary the current in a three-lead circuit to brushes of a receiver armature, which adjusts its position relative to the stator field and operates a similar linkage.
Patent GB-174262-A (GB)
Title: An improved construction of press and strainer for extracting juice from fruit and the like
IPC: A47J19/00
Filed: 1920-11-23
Abstract: 174,262. Simpson, J., and McClure, R. P. Nov. 23, 1920. Pressing and squeezing fruit &c. - Apparatus for extracting juice from fruit &c. comprises an outer casing 1, an inner perforated casing 10, a detachably-mounted screw press, and a strainer 6 below the inner casing. The casing 10 is attached to and supported by a ring 11, partly conical and partly cylindrical, and provided with a flange which rests upon the flange 8 of the outer casing. The screw 19 of the press works through the central boss of a spider 14, the arms of which have their ends secured by pins 16 in slots forced in lugs fixed to the ring 11. The press plate 20 is mounted on a spider 23, held between collars 24 on the shaft, and is recessed at the edges to correspond with inwardly pressed ribs 26 in the sides of the casing 10, which prevent rotation of the plate. The strainer 6 is of flannel, stretched over a ring 5, and is supported by lugs 4.
Patent GB-469227-A (GB)
Title: Improved carbonating apparatus
IPC: B01F3/04
Filed: 1936-12-02
Abstract: 469,227. Valves. GWATKIN, F. A. S. (Welker, M. M., Vaughn, C. R., and General Dry Batteries, Inc.) Dec. 2, 1936, No. 33076. [Class 135] [Also in Group VI] A valve for balancing the pressures of the water and gas in a carbonating-apparatus comprises a bellows 45 the inside of which is connected by the pipe 61 to the water supply, and the end plate 46 of which is fitted with stirrup arms 50 carrying a member 55 which abuts against a spring-influenced plug 39 regulating the orifice 35 through which the gas is supplied. The plate 46 is also under the influence of an adjustable spring 65.
Patent GB-172855-A (GB)
Title: Improvements in or relating to machines or moulds for making concrete blocks or slabs, for building or paving purposes
IPC: B28B7/00
Filed: 1920-11-24
Abstract: 172,855. Clarke, E. G. Nov. 24, 1920. Moulds.-A mould for use in moulding blocks or slabs is formed with three sides d, e, f hinged together as one member, the other side g being independent and having notches p to engage with projections on the ends of the sides e, f. The mould is made adjustable in length by making the hinge member n adjustable in the side d, packing being used to make the mould narrower. The pallet comes partly under the mould side d and the removable side closes the mould and is held by cam bolts or wedges.
Patent GB-376623-A (GB)
Title: Improvements in buffer stops
IPC: B61K7/18
Filed: 1931-12-01
Abstract: 376,623. Railway buffers. BUCKHAN, F., Bridge Wharf, Chalk Farm Road, London. Dec. 1, 1931, No. 33291. [Class 104 (ii).] In a buffer stop of the kind adapted to slide on the ballast, the struts 13 supporting the buffer block 12 are connected to auxiliary rails slidably clamped to a mat of sleepers 19 and to coupled pairs of sleepers 20. When the rails are moved by impact on the block 12, brackets 25 thereon move the sleepers. At the rear end, rails or sleepers 28 are embedded in the ballast to support the sliding mat 19 and prevent it from digging into the ballast.