baber/WOPTO huggingface dataset:
Patent GB-464363-A (GB)
Title: Improvements relating to automatic couplings for railway vehicles
IPC: B61G5/06
Filed: 1936-02-06
Abstract: 464,363. Automatic couplings for vehicles. PETERS & CO., Ltd., G. D., and BLACKSHAW, J. E. Feb. 6, 1936, No. 3632. [Class 103 (v)] In an automatic coupling for railway vehicles of the kind in which the draught coupling is combined with connections for the compressed air or other fluid conduits and for electric circuits, a single fluid-actuated engine 6 on each vehicle controls both the working of a second engine 5 that actuates the coupler lock 4 and also a series of valves regulating the brake and other fluid conduits. As shown, the engine 6, which is of the differential pressureactuated type, effects a to-and-fro movement of a rock-shaft 19 on which are mounted a series of cams 20 ... 24 actuating valves 7 ... 11, of which the valve 7 via pipe 12 controls the brake trip-cock valve, the valves 8 and 11 control the brake and main compressed air lines 3, 2 respectively, while the valves 9, 10 via pipes 13, 14 control the working of the piston 15 in the cylinder 5. When the shaft 19 is rocked through 180‹ in an uncoupling direction, all the valves 7 ... 11 are operated, but when the shaft reverses through 180‹ only the valves 7, 8 and 11 are operated, the valves 9, 10 being actuated by pawl-and-detent mechanism. By means of gearing 30, 31 the shaft 19 is arranged, to drive a second shaft which controls the position of a number of electric contacts 33 adapted to open or close circuits leading to other contacts on the face of the couplers. The admission of fluid pressure to the two cylinders 6a, 6b is regulated by an automatically latching valve 36 actuated by a pair of electromagnetic coils 37, 40 included in circuits with an uncoupling switch 42 and a coupling switch 43. Delay devices 46 render the engine 6 sufficiently slow in operation to provide time for moving the vehicles towards or away from each other during the movement of the rockshaft 19. In the normal or coupled position of the vehicles, the valves 7 and 10 are closed, Fig. 2, while the valves 8, 9 and 11 are open, i.e. communication is established between the pipes 2, 3 on adjacent vehicles, and the piston 15 is advanced to lock the coupling. When the uncoupling key 42 is depressed, the shaft 19 is rotated, and the position of all the valves is changed, but the change of valves 8, 9 is only temporary since at the end of the movement they are restored to their initial position with the lock 4 again in locking position. During the released period of the lock, the vehicles are moved apart, and no sparking occurs at the coupler contacts since the contacts 33 have also been displaced. After a coupling is re-effected the coupling key 43 is depressed and the valves 7, 8 and 11 again restored to normal condition. Leads 45, 50 permit the engines 6 on two vehicles to be controlled simultaneously by the switches 42, 43 on either vehicle, while a key-controlled master switch 44 may be provided to prevent unauthorized actuation of the entire mechanism. Specifications 435,579 ; and 442,742, [Group XXVIII], are referred to.
Patent GB-537632-A (GB)
Title: Lapping machine for finishing metal surfaces
IPC: B24B35/00
Filed: 1940-02-28
Abstract: 537,632. Lapping machines. NORTON CO. Feb. 28, 1940, No. 3673. Convention date, Feb. 28, 1939. [Class 60] A lapping machine comprises means for rotating a cylindrical workpiece or one having a surface of revolution, and a lapping stick carried on a rocking support which is moved during its rocking movement so that the lapping stick follows a surface generator of the work piece. In a device which may form an attachment to an existing grinding machine, the work piece 10 is carried between centres 11, 12 and ground to size by a wheel 15 operating as described in Specification 463,334. The lapping is then effected by an attachment comprising two lapping sticks 20 clamped or cemented in a pivoted block 22 controlled by springs 30, the pivot pins 25 being located on a block 26 which is itself pivoted on a cross axis 27 to arms 28 thus giving universal freedom of movement to the lapping sticks. The arms 28 are secured to the side members 36 of a, rocking frame pivoted at 39 to blocks 38 which are slidable in short guides in the lapping head 42. The head 42 is slidable on ways on a cylinder 46 having an extension plate 48 secured by bolts 50 to a slide 54 which may be traversed to adjust the lapping tools transversely of the work by hand-operated rack and pinion gearing 58. The lapping frame is rocked by mechanism comprising a hydraulic or, as shown, by an electric motor 61 which drives an adjustable crank disc 62 connected by a link 64 to the upper part of the frame which is urged upwardly to engage a roller 74 with a cam 70. The cam is so shaped that as the frame is rocked it is reciprocated in the guides 38 so as to cause the lapping sticks to follow a rectilinear path for lapping cylindrical work. For other work such as a crowned roll, an appropriately modified cam is used. The supporting platform 72 of the motor is adjustable together with the head 42 by the cylinder 46 which is supplied with fluid from a valve 96 controlled by a handle 100. Specification 537,633 also is referred to.
Patent GB-1344587-A (GB)
Title: Mixing apparatus for gases
IPC: B01F23/10
Filed: 1972-01-26
Abstract: 1344587 Mixing gases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 26 Jan 1972 [28 Jan 1971] 3725/72 Heading B1C Apparatus for mixing first and second mutually reactive gases (e.g. a hydrocarbon and air) comprises an inlet 4 for a second gas 2, a gas velocity and static pressure stabilizing zone 6, a mixing zone 7 having at least one sparger as at 8, 9 10 (see also Fig. 2, not shown) for a first gas, and a mixed gas outlet 25 which may lead to a reactor 26. A sample of the product taken through line 28 may be tested at 29 and used by a control 31 to adjust the proportions of second gas 1 and an inert gas 3 supplied to the spargers to maintain a stable reaction. If there is more than one sparger they are preferably of progressively decreasing size as shown. Preferred dimensions and proportions are given and the conditions necessary to prevent backflow of second gas into the spargers with formation of explosive mixtures are discussed. Flow stabilization in zone 6 may be promoted by increasing the gas velocity as by reducing the conduit cross-section or by adding a flow resistance such as a baffle, screen, perforated partition, honeycomb or the elbow 5.
Patent GB-1525953-A (GB)
Title: Ball valves
IPC: F16K5/06
Filed: 1975-01-28
Abstract: 1525953 Valves SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 26 Jan 1976 [28 Jan 1975] 3730/75 Heading F2V A slot 1 in the ball of a ball valve in which the actuating spindle fits is provided, at each end, with shaped extensions 5, 7, in which an adjustable compound wedge 13, 14 can be positioned so as to substantially fill the space left within the slot when the actuating shaft is in position. The extensions 5, 7 are so shaped as to provide lugs 10, 11 between them against which the wedge member can be held. Each compound wedge consists of a first member 13 having a threaded extension 20, a second member 14 having a bore for the extension 20 and a nut 15 for securing the wedge members in position.
Patent GB-585292-A (GB)
Title: A new or improved device for catching rabbits and the like
IPC: A01M23/32
Filed: 1945-02-15
Abstract: 585,292. Rabbit-catching devices. BAKER, S., and BAKER, O. D. Feb. 15,1945, No. 3812. [Class 5 (i)] A hand-applied net for ensnaring rabbits comprises a flexible web 6 attached to two divergent arms 1, 2 of springy material kept apart by cross-bar 4. Two sleeves 8, 10 situated respectively on the under-side of the cross-bar and upper side of the junction of the arms 1, 2 receive the handle 7 so that it is inclined to the plane of the arms 1, 2. A cord 5 to which the web is attached joins the divergent ends of the arms, 1, 2.
Patent GB-1141410-A (GB)
Title: Improvements in or relating to pulsed doppler radar systems
Inventor: AGAR WILLIAM OLIVER
IPC: G01S7/288
Filed: 1967-01-25
Abstract: 1,141,410. Pulse doppler radar. MARCONI CO. Ltd. 24 Oct., 1967 [25 Jan., 1967], No. 3832/67. Heading H4D. The Specification describes a coherent pulsed doppler radar comprising a transmitting microwave oscillator 1 having a radio-frequency resonant circuit. The oscillator is pulsed by source 2 and the microwave pulses are fed via circulator 3 and duplexer 4 to a mixer 6 where they are converted into intermediate-frequency signals by the output of local oscillator 7. Sufficient amount of the local oscillator output is fed via coupler 9 and circulator 3 to the resonant circuit of the oscillator 1 to produce injection phase priming thereof. The operating frequency of the oscillator 1 is equal to the local oscillator frequency plus or minus the intermediate frequency. Thus at the start of each pulsing of the oscillator 1, the output of the oscillator is locked in phase with the output of the local oscillator 7. As the power output of the oscillator 1 increases, its frequency reverts to its operating value. The transmitted pulses are thus coherent. The microwave oscillator may be of the Gunn diode type.
Patent GB-123422-A (GB)
Title: A Pneumatic Operated Transmitter and Receiver for the Visual Indication of Signals, Orders and the like.
Inventor: COLE STANTON WILDING
IPC: F15B7/00
Filed: 1918-03-06
Abstract: 123,422. Cole, S. W., and Hannaford, C. March 6, 1918. Pneumatic telegraphs.-A pneumatically-operated order telegraph for use on ships, aeroplanes, &c., comprises flexible air chambers B, B<1> at the transmitting and receiving stations, respectively. arranged in casings A, A<1>, fitted with indicating dials over which move pointers K, K'. The pointer K is attached to a screwed shaft F, operable by a nut H, and on turning this nut movement is imparted to the chamber B through lever and link mechanism E<1>, E<2>, E<3>, the last of which moves about an adjustable pivot n carried by an adjustable screw-block n'. Variations in pressure in the chamber B are transmitted by a pipe c to the chamber B<1>, and movements of the flexible chamber B' are transmitted to the pointer K<1> by means of a lever P and chain passing over a drum Q on the spring-controlled shaft of the pointer K'. When the pointer K is at zero position it is held by a spring-catch I engaging a recess in the top of casing A, and in this position a valve J connects the pipe c to atmosphere. A call signal consisting of a buzzer, or a glow lamp, may be used in connexion with the device.
Patent GB-939612-A (GB)
Title: Shaped metal and process for its production
Inventor: PASHAK JOHN FRANCIS
IPC: C22C1/04
Filed: 1960-02-04
Abstract: Sintered foamed metal articles are formed by extruding a powder mixture of metals or alloys and a gas generating compound at a temperature below the melting temperature of the metal and below the decomposition temperature of the compound and finally sintering the extruded article at a temperature below the melting temperature so that the compound decomposes and generates a gas which expands the metal structure.  The metallic powders are Al or Mg or their alloys and preferably contain at least 80% Al or Mg. A preferred alloy contains Mg with up to 6% Al and/or Zn and up to 0.8% Zr but alloys containing Cu and Cr are also specified.  The metal powder should be minus 10 mesh with a maximum of 10% minus 325 mesh.  The gas generating compound which may be cadmium carbonate and/or magnesium carbonate such as nesquihonite, magnesite or hydromagnesite, is present in a proportion of 0.5-20% of the weight of the metal and should have a particle size less than 50 microns.  The mixed powders are extruded at 200-450 DEG  C. and the heat treatment for sintering and expanding is at 527 DEG -565 DEG  C. depending on the composition of the Al or Mg alloy.  The extruded compact may also be cellulausea in situ in a die to give the required shape and size.  The density of the expanded product is less than 1.1 g/cc. and the pores have a diameter of 0.01-20 mm.
Patent GB-396797-A (GB)
Title: Improvements in or relating to filing cabinets such as magazine cabinets for gramophone records
IPC: A47B81/06
Filed: 1932-02-12
Abstract: 396,797. Filing-cabinets for gramophone records &c. PERCIVAL, R., 45, Mansfield Road, Edwinstowe, Nottinghamshire. Feb. 12, 1932, No. 4194. [Class 18.] A filing-cabinet for gramophone records, documents, and other articles consists of two superposed groups of compartments for large and small records respectively, the compartments containing slidable trays 10, 100, Figs. 1 and 2, moved by heads 15, 115 carried on rods 13, 113 pivoted at 14, 114 to a block 12 slidable on guides 11 and rocked by spring- controlled press-buttons 20, 120 connected by links 21, 121 with the rods 13, 113 and mounted in a slidable spring-controlled block 19. The block 19 is slid over the index shown in Fig. 2 until one of the two pointers coincides with a desired point thereon, whereafter the appropriate one of the two buttons 20, 120 is pressed.
Patent GB-802749-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K3/24
Filed: 1956-02-10
Abstract: 802,749. Cooling dynamo-electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL, CO. Feb. 10, 1956 [Feb. 17, 1955], No. 4216/56. Class 35. In a machine with coolant circulated in a sealed casing, coolant from one side of a fan or circulator passes through a hollow terminal lead into a terminal bushing which has an internal passage for circulating the fluid which emerges into a space sealed from the machine interior by a barrier through which the terminals pass and is then passed back to the fan or circulator. Hydrogen passes from the fan 80 into the cooler 84, Fig. 2B, from which some flows to the other end of the machine by passages 85 at the back of the stator core and some enters the right-hand end of the rotor, as shown by arrows 105, 106, whence it flows in heat-exchange relationship with the rotor slot conductors and escapes into the airgap near the rotor centre and then returns to the fan. Of the gas reaching the left-hand end of the machine, part enters the rotor as shown by arrow 105 to join the rest of the rotor gas at the rotor centre while the rest enters the stator end windings, interconnections or terminal leads by apertures 39, Fig. 2A, 89 and 90, Fig. 1. The stator slot conductors are in two stacks, separated by coolant ducts. Gas from the terminal leads passes from the hollow conductor 44, Fig. 2A, into the tube 57 via a flexible connection 94, then flows upward through the hollow terminal stem 58 and escapes into the terminal housing 54, returns to the fan inlet via passage 87 and tubes 88. Specifications 722,151, 722,152 and 753,144 are referred to.
Patent GB-646475-A (GB)
Title: Improvements in or relating to circuit arrangements in which high-frequency oscillations are generated or amplified
IPC: H03J3/24
Filed: 1948-02-13
Abstract: 646,475. Valve circuits. PHILIPS ELECTRICAL, Ltd. Feb. 13, 1948, No. 4242. Convention date, Feb. 17, 1947. [Class 40 (v)] In a high-frequency oscillator or amplifier in which the frequency is determined by a tuned circuit comprising a variable condenser 6 and an inductance 7 variable in steps to give two or more ranges, and in which the law of variation of frequency with variation of the capacity is modified in the higher frequency ranges by the stray inductance of the leads and of the coupling-coil 11 in conjunction with the valve capacities, a similar law is obtained in the lower frequency ranges by means of an auxiliary circuit comprising a condenser 14 and inductance 13 coupled to and having a natural frequency higher than the frequencydetermining circuit. The auxiliary circuit may alternatively comprise part of the inductance 7 shunted by a condenser, Fig. 4 (not shown).
Patent GB-271137-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/38
Filed: 1926-02-15
Abstract: 271,137. Woods, R. Feb. 15, 1926. No Patent granted (Sealing fee not paid). Condensers wherein the plates are so arranged that when the condenser is secured in the usual manner to a panel they extend in a plane at right angles to that of the panel to minimize hand-capacity effect, have the fixed plate, carried as a unitary structure by an insulating support in which the movable plates are mounted as an independent structure. The fixed plates 1 are mounted by means of a spindle 3 between the arms 5 of a support 6 of " Bakelite," and in addition three outer plates on each side are extended and secured by screwed rods 8 to lugs 7 on the arms 5. The movable plates 11 which are shaped to give a straight line frequency are connected at one end by a spindle 12 and at the other by a spindle which is pivoted in the arms 5 by screws 15 having conical bearings in the ends of the spindle. The centre spacing washer on this spindle is formed as a fibre worm wheel 17 engaging a worm 18 on a spindle 19, at one end of which is a spherical head 20 engaging a hole in an inclined plate 21 of hardened, tempered steel, the ends of which are secured to lugs 23 on the ends of the arms 5. The other end of the spindle 39 has a shoulder 27 engaging a formed part of the bore of a bush 24 so that the spindle can rock therein to a limited extent. Owing to the inclination of the plate 21, the parts of the gearing are held in mesh and also wear at the bush 24 is automatically taken up. Indicating means comprises a numbered and notched disc 28 pivoted at 29, the notches being engaged in succession by a pin on the spindle and the numbers being observed through a hole in the panel. A gearing ratio is stated to be 40:1 and in the event of damage to the teeth, the plate 21 can be removed and the wheel 17 rotated so that other teeth are presented to the worm. The Provisional Specification describes another form in which the arrangement of plates is modified. Specification 255,147. [Class 37, Electricity. Measuring &c.], is referred to.
Patent GB-729637-A (GB)
Title: Improvements in or relating to multi-electrode gaseous-discharge tube circuits
Inventor: BARNES RICHARD CHARLES MOSS
IPC: G11C11/26
Filed: 1951-02-22
Abstract: 729,637. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 22, 1952 [Feb. 22, 1951], No. 4301/51. Class 106 (1). A .circuit comprises a block of multi-cathode gaseous-discharge tubes of the type wherein the discharge is moved by the application of pulses to the first guide cathodes and related pulses to second guide cathodes, an array of connections each common to the first guide cathodes of all tubes in a row of the block and an array of connections each common to the second guide cathodes of all tubes in a column of the block, switch means in each common connection of one of the arrays and a common feed connection to the switches. Trains of pulses providing the first pulse of each pair are fed to a line L and trains of intercalated pulses providing the second pulse of each pair are fed to a cross-bar 1x, 10x or 100x according to the digital significance of the train. Thus trains of pulses are routed to any one tube by means of a single switch S1, S2 or S3. Specifications 699,696, 707,458 and 729,638 are referred to.
Patent GB-579348-A (GB)
Title: Operating gear for pivoted sky-lights and fan-lights
IPC: E05F11/02
Filed: 1944-03-09
Abstract: 579,348. Fanlight &c. operating gear. ADAMS, J. I. March 9, 1944, No. 4385, [Class 20 (iii)] [Also in Group XXV] In operating gear of the sliding rod and bracket type for weight or otherwise loaded pivoted skylights &c. wherein a locking plate 28, hooked or hinged to a sleeve 24 pivoted to the bracket 19, is normally inclined to provide a frictional grip on the rod 13, release is effected by pulling the window operating cord 39 laterally, thus bringing the locking plate into a position at right angles to the rod. Gravity may serve to bring the plate 28 into the locking position the spring 9 being omitted. The device is shown as applied to a skylight 10, the bracket 19 being secured to the fixed frame 12; downward tension on the cord 39, passing over pulleys 33 on the bracket and 15 at the end of the rod, forces the rod and skylight upwards, the end of the cord being attached to the sleeve 24 or to a second locking plate 37 serving to prevent opening by pulling on the skylight from above.
Patent GB-581692-A (GB)
Title: Improvements in or relating to steam generator furnaces combined with gas producers
Filed: 1941-04-02
Abstract: 581,692. Steam generator and gas producer plant. BAILEY, R. W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. April 2, 1941, Nos. 4445/42 and 5654/42. Divided out of 581,681, [Group XXVI]. [Classes 51 (i) and 55 (i)] In a combined steam generator and gas producer plant a part or the whole of the coal, prior to entering the furnace of the steam generator, is subjected to a temperature of from about 300‹ to 500‹C. to distil off gaseous products, which may be led to the gas producer, and is then partly burnt on the furnace grate and delivered to the gas producer the gas from which may be burnt in the furnace or utilized for driving a gas engine. As shown, fuel is fed from a hopper 11 on to a travelling grate 9 the front portion of which is arranged in a distillation chamber 28 where it is subjected to the heat of furnace gases led from the furnace chamber by a conduit 25. The distillates and other gases are led through a conduit 29 to the gas producer 13 and the fuel on the grate after being partly burnt is delivered to the producer which may be of the kind described in Specification 579,967. The steam generator may be of the water-tube type with water tubes 23 connected to a drum 24 restricting the passage between the chamber 28 and furnace chamber. Steam or gas may be delivered by nozzles 32 to prevent the passage of furnace gases into the distillation chamber. Specifications 581,680 and 581,681, [both in Group XXVI], also are referred to.