baber/WOPTO huggingface dataset:
Patent GB-799539-A (GB)
Title: Improvements in or relating to electrostatic precipitator systems
IPC: B03C3/66
Filed: 1956-06-14
Abstract: 799,539. Automatic control systems for electyostatic precipitators. RESEARCH CORPORATION. June 14, 1956 (Aug. 2, 1955], No. 18408/56. Class 38 (4). An electrostatic precipitator system for gases entering the precipitator 1<SP>1</SP> at 2<SP>1</SP>, and leaving at 3<SP>1</SP> after passing discharge electrode 28, comprises a voltage regulator 22 adjusted by motor 33 of electronic integrating and voltage control system 32 to keep the sparking rate within fixed limits by counting the voltage pulses impressed on primary of transformer 31 by the sparks, and distributing nozzles 52 and 53 for adding a conditioning agent such as a water spray, steam, or a conductive dust such as carbon black or coal dust when the precipitator current through ammeter 13<SP>1</SP> falls below a fixed value. This fall in current closes contact 39 and energizes relay 41 which energizes holding relay 49, and relay 44 for pump 51, and opens valves 46 and 47. When the precipitator current rises to a first upper value contacts 42 close and relay 43 de-energizes valve 47 to reduce the supply of conditioning agent; further rise in current causes relay 34 to open contacts 34<SP>11</SP> and completely shut off the conditioning system and also opens contacts 34<SP>1</SP> of system 32 to prevent further rise in precipitator voltage. In an alternative arrangement relays corresponding to 41 and 43 controlling the addition of conditioning agents are energized when the voltage across the primary of transformer 24 falls and rises respectively. Specification 740,394 is referred to.
Patent GB-578306-A (GB)
Title: Improvements in an exhaust turbosupercharger
IPC: F02B37/18
Filed: 1942-12-18
Abstract: 578,306. Superchargers. FORD MOTOR CO., Ltd. Dec. 18, 1942, No. 18053. Convention date, Feb. 9. [Class 7 (ii)] [Also in Groups XXVI and XXXIII] A centrifugal supercharger 36, Fig. 4, driven by a turbine 53 receiving the exhaust gas from an aircraft I. C. engine 12 is located at the rear of and beneath the I.C. engine. It receives air from a forwardly directed inlet 19 and delivers it through a cooler 34 to the I.C. engine. A part of its delivery goes through transversepassages 63 in the turbine rotor 53 to cool the latter. Air taken in at 38 passes over the cooler 34 and joins the turbine exhaust in a passage 55 leading to a propulsion jet. In the construction shown in Fig. 3, air is taken out at 50 between the two pump stages and passes into a chamber surrounding the turbine bearing 54 on its way to the cooling passages 63 in the turbine rotor. A valve 61 is provided for regulating- the turbine power by providing a by-passing route 60 for the I.C. engine exhaust. Specification 549,700 is referred to.
Patent GB-1505376-A (GB)
Title: Oscillator circuits
IPC: H03B5/24
Filed: 1975-05-02
Abstract: 1505376 Semi-conductor oscillator circuit SONY CORP 2 May 1975 [10 May 1974] 18509/75 Heading H3T In an oscillator circuit, using a semi-conductor device Q comprising a bipolar transistor with emitter E, base B and collector C regions of alternating conductivity type, with a fourth F.E.T. gate electrode G separated from the first (emitter) region by an insulating layer (Fig. 3, not shown) the collector current for fixed base-emitter current I B  is a function of the gate-emitter potential V G , its characteristic 15, similar to that of h FE  the commonemitter current amplification factor (Fig. 5, not shown), showing a valley symmetrical about some negative voltage V T : if the gate is biased to some point V A  negative of the centre of the valley V T  the negative differential coefficient of collector current w.r.t. the gate-emitter voltage V G  allows positive feedback from the output potential 14 across load Rc, through impedance divider Z 1 , Z 2 , to the gate to produce oscillation. With the collector-gate impedance Z 1  capacitative, the gate-bias impedance Z 2  may be resistive or inductive, the frequency of oscillation being a function of the two impedances. The conductivity types of the device may be reversed. The emitter region may contain a potential barrier formed by a sub-region of higher impurities concentration than in the first region, lying within the minority carrier diffusion distance from the emitter-base junction (Fig. 1, not shown). This can be augmented by a sub-region of reverse conductivity within the diffusion distance from the same junction (Fig. 2, not shown). Either device may carry the additional fourth gate electrode.
Patent GB-401419-A (GB)
Title: Improvements in gas firing arrangements for multi-tubular boilers or water heaters
IPC: F23D14/00
Filed: 1932-07-01
Abstract: 401,419. Gas-fired furnaces. TOWN GAS BOILERS (BONECOURT), Ltd. and GRATER, N., 82, Victoria Street, London. July 1, 1932, No. 18591. [Class 51 (i).] A gas-fired boiler or water heater a of the kind comprising external burners each opposite to and adapted to project its flame into a tube a<1 >extending through the boiler or heater, is provided with means for closing off the end of any tube opposite a burner which is not in use, said means comprising a baffle-plate d and cam means g pivotally mounted on the respective gas distribution pipe c and adapted to hold the plate in airtight contact with the tube. In the form shown in Fig. 1, the plate d is adapted to close the ends of a vertical row of tubes opposite the burners of a vertical distribution pipe c and is provided at one end with a handle f which, when the plate is in position, rests on the end of the pipe c. In this form the distribution pipe carries two cam members g. As shown in detail in Fig. 4, the plate is provided with flanges d<1> and asbestos packing e. The cam means comprises a boss g, a projecting member g<1> adapted to receive an operating handle and a member g<2> formed with a foot h for engagement with the plate d. If only one tube is to be closed, the baffle may be in the form of a flanged circular cap.
Patent GB-863283-A (GB)
Title: Improvements in and relating to coal-cutting machines
Inventor: DIXON NORMAN HENRY PRICE
IPC: E21C29/12
Filed: 1958-06-11
Abstract: 863,283. Mineral mining machines. CRAWLEY INDUSTRIAL PRODUCTS Ltd. Sept. 8, 1959 [June 11, 1958], No. 18653/58. Class 68(1). [Also in Group XXX] A coal cutter-loader machine is moved across the coal face by hydraulically reciprocablechain grips 9,13 A bank of four hydraulic cylinders 5,6,7,8, is rigid with the machine and has forward. ly extending piston rods 5a 8a carrying a forward chair grip 9 at their outer ends Rearwardly extending pis ton rods 6a, 7a carry a rear ward chain grip 13. Rods 6b 7b rigid with the cylinder! are connected at their for ward ends to a bracket 11 of the machine. Similar bu rearwardly extending rods 5b, 8b (not shown), are con nected with a bracket 11a of the machine. Each grip 9, 13, comprises a rubbei sleeve 10 surrounded by a fluid filled cylinder a In operation, when fluid pressure is applied to the forward cylinder a, the chain is gripped and further fluid pressure is applied to cylinders 5, 8. Pressure if then released and applied to the rearward cylinder a and to the cylinders 6, 7.
Patent GB-797388-A (GB)
Title: Coin-operated meter for chargeable time
IPC: G07F17/24
Filed: 1956-06-15
Abstract: 797,388. Parking meters. SOC GENERALE DES COMPTEURS DE VOITURES. (TAXIMETRES). June 15, 1956 [June 16, 1955; Feb. 7, 1956], No. 18704/56. Class 27 A coin-operated time-metering device, such as a parking meter, comprises a coin carrier 3 rotated by timing mechanism and having a pair of diametrically-opposite coin recesses 2 and 9, an inlet dog A which is depressed by an inserted coin to start the timing mechanism and an outlet dog E which is operable by the coin to stop the timing mechanism after the carrier has made a timed rotation of 180 degrees. The operative state of the device is indicated by a shaded disc connected to the escapement balance of the clockwork or to the timing motor movement and the carrier is enclosed between transparent walls so that the coin can be seen and the unexpired time read against a scale 7. The inlet dog A is latched to a pin F on a lever B having a wire H that locks the escapement and depression of the dog A by a coin releases the escapement and lowers a link C so that the outlet dog E is pivoted into a coin outlet sheet 8. When the coin has been rotated through 180 degrees, it falls down the outlet shoot and depresses the outlet dog so that the lever B is raised and is again latched to the inlet dog. In a modification, the inlet dog is linked to a lever having a brake bearing on the disc 12 and the lever has a flexible connection to an outlet dog pivoted above the lower recess position 9. The outlet dog has an inclined surface so that it is automatically retracted when the carrier starts to rotate but can return into the lower recess when the coin falls into the outlet shoot. A transparent inlet shoot 1 for holding further coins may extend vertically above the recess 2 or, as shown in Fig. 3, a shoot 15 having a device 23 for rejecting too small. coins, may extend peripherally round the carrier and hold further coins 20, 21 which fall successively into a recess 2 at each half revolution of the carrier. A counter V, Fig. 4, may be geared to the carrier 3 or to the clockwork movement.
Patent GB-1069238-A (GB)
Title: Dial gauge vernier caliper
IPC: G01B3/20
Filed: 1966-04-28
Abstract: 1,069,238. Micrometers. J.A. SCHOLL. April 28, 1966, No. 18710/66. Heading G1M. A vernier caliper comprises a caliper bar 12 with at least one fixed jaw 14, a main carriage frame 20 mounted on said bar, another jaw 24 on said frame co-operating with said fixed jaw, said frame having a threaded bore 52 at its other end, a rack gear 44 carried by said frame, a second carriage frame 60 with a dial gauge 76 slidably mounted on said caliper bar, the gauge having a pointer 78 on a pin shaft 49 with a pinion gear 48 meshed with said rack gear, a rotatable connecting shaft 84 carried by the second carriage frame and terminating in a threaded end for engagement in said threaded bore 52, and a locking screw 70 for holding said second carriage frame stationary with respect to the caliper bar, whereby said main carriage frame will be moved relative to said second carriage frame by movement of said rack gear to rotate said pinion gear to give a measurement in said scale of said movement. The jaws 14, 24 are provided for external measurements and jaws 16, 26 are provided for internal measurements. In operation, the carriage frames 20, 60 are moved as a unit on bar 12 until the measuring jaws are approximately at the right spacing with the '0' index mark 42 Fig. 7 (not shown) coinciding with a line on the scale 11, the pointer 78 being at zero. The carriage frame 60 is then locked to bar 12 by screw 70. Knurled sleeve 86 is then rotated to rotate shaft 84 in bore 52 so that carriage frame 20 either moves towards or away from frame 60. During this movement, gear 48 rotates as rack 44 moves longitudinally and pointer 78 gives a vernier reading for addition to the reading on scale 11.
Patent GB-1458799-A (GB)
Title: Method for recovering oil from a fractured limestone formation  and oil recovered by such method
IPC: E21B43/24
Filed: 1975-05-05
Abstract: 1458799 Oil recovery SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 5 May 1975 18728/75 Heading E1F In a limestone formation comprising permeable blocks surrounded by a natural fracture network containing oil and water separated by an oil/water interface, the volume of water in the formation is controlled to raise the oil/water interface at a predetermined rate, and hot aqueous fluid is circulated through the fracture network to increase the temperature of the area covered by the rising oil/water interface, the increase in temperature causing the expulsion of oil trapped in the blocks by capillary action. The raising of the oil/water interface at a predetermined rate is controlled by allowing water to enter from a waterbearing formation communicating with the formation, or by injecting water into the formation. In a formation which has been wholly or partially depleted, a gas, e.g. a hot heatexchanging gas, is injected into the formation to lower the oil/water interface prior to the raising of this interface and prior to the circulation of hot aqueous fluid. The hot aqueous fluid may be steam for condensing in the fracture network, or hot water, the density of the latter being controlled by the addition of salt so that it is higher than the density of the oil but lower than the density of the water already present in the fracture network.
Patent GB-1310122-A (GB)
Title: Thread-sensing device for a textile machine
IPC: B65H63/028
Filed: 1970-04-20
Abstract: 1310122 Alarms and stop-motions in spinning &c. machines LA TELEMECANIQUE ELECTRIQUE 20 April 1970 [29 April 1969] 18742/70 Headings DID and D1F [Also in Division H1] In a device for detecting breakage of a running thread or fine wire in a spinning machine, loom or wire coiling machine, when the thread &c. 3 (normally pressing on a roller 9) breaks, the loss of tension therein between guides 4 permits pivotal movement of a permanent magnet 7 (assisted or ensured by the attracion of an adjustable pole-piece 27) which then attracts one end of a mild steel vane or latch 10 which is thus pivoted so as to disengage the other end from a nose 17a of a blade 16 which is then moved by a spring 19 to close the electrical contacts 14 and 18 and complete, through connectors 15, actuating circuit(s) for warning and/or thread-cutting apparatus (not shown). The device is reset by manual operation of a latch 22, which returns sensor 8, and therefore magnet 7 (to the position shown in full lines) until tension in the thread 3 is restored, and downward movement of a spring-loaded plunger 20 which swings latch 10 into the position shown whereat the electrical contacts are separated.
Patent GB-277938-A (GB)
Title: Process for the manufacture of carbon dioxide
IPC: C01B32/55
Filed: 1927-07-15
Abstract: 277,938. Haynes, P. E. Sept. 27, 1926. [Convention date]. Liquefying and solidifying. - Carbon dioxide liberated by heating calcium carbonate passing through a furnace-heated retort 13 in countercurrent to a stream of steam, is carried by a pipe through a scrubber 34 where the. steam is condensed by a. shower of water, and into a holder 37. The gas is withdrawn by a pump 25 and compressed to about 70 atm. into a cooler 41 where it becomes liquid. The liquid is expanded into a box 44 where it solidifies, and gas is returned through the cooler 41 to the pump 25. Waste gases from the retort furnace 16 are used to heat a steam generator 20 and the generated steam drives an engine 24 operating the pump 25.
Patent GB-569680-A (GB)
Title: Improvements in boiler dampers
IPC: F23L13/00
Filed: 1943-11-12
Abstract: 569,680. Dampers. CAMPBELL, A. Nov. 12, 1943, No. 18853. Addition to 536,314. [Class 51 (i)] [Also in Group XXVI] The sealing elements for sliding dampers described in the parent Specification are pressed against the edges of the damper by toggle mechanism or by cams. As shown in Figs. 1 and 2, the sealing element 11 engaging with the edge of a vertically sliding damper 6 is pressed inwardly by a bar 12 connected by toggle links 14 to the frame 9. The bar 12 moves downwardly under the action of gravity and may be assisted by the weight of the damper which is provided with a projection 16 engaging with the top of the bar 12 when the damper is near its closed position. The sealing element 11 has an inclined surface engaging with a correspondingly inclined surface on the damper edge to press the damper against a seating 25 on the frame. The sealing element also engages with grooves 13 having walls 26 inclined to correspond with the inclined surface of the sealing element 11. Fig. 3 shows a horizontally sliding damper 6 in which the sealing element 11 is pressed against the damper edge by a cam or cams 18 on a bar provided with a counterweighted lever 19.
Patent GB-231732-A (GB)
Title: Improvements in safety razors
IPC: B26B21/16
Filed: 1924-08-08
Abstract: 231,732. Watt, J. A. D. Aug. 28, 1924. Razors, safety. In a safety razor in which the blade is pivoted in a carrier slidably adjustable across the razor head to adjust the blade edge relatively to the guard, the blade carrier 11 and guard 12 are connected by a slidable member 14 having, two interconnected superposed sections 14a, 14b disposed in intersecting planes, the section 14a engaging a slot 11<a> in the underside of the carrier and the section 14<b> engaging a slot 12<c> in the guard; guide sections 11<c> on the carrier engage shoulders 12d at each side of the guard and prevent lateral movement of the carrier relative to the guard. The member 14 is slid to adjust the blade by a downturned tongue 14<c> which has an aperture 14d registering with one of a series of numerals on the rear face of the guard to give an indication of the setting of the blade. A modification is described.
Patent GB-861582-A (GB)
Title: Improvements in compressed scale measuring instrument circuits
IPC: G01R15/08
Filed: 1957-06-14
Abstract: 861,582. Measuring instruments. SANGAMO WESTON Ltd. June 14, 1957 [June 18, 1956], No. 18878/57. Class 37. A voltage - measuring instrument having a compressed scale for indicating voltage exceeding a certain level (Fig. 2, not shown) comprises a milliammeter 1 shunted by a series resistor 3 and a silicon rectifier diode in reverse polarity to a unidirectional voltage source 7 to be measured; the combined circuit being connected thereto over a series resistor 5. Up to a critical voltage (e.g. 10 volts), the rectifier has high impedance and the meter operates with resistor 5 as a high sensitivity voltmeter, while when the critical voltage is exceeded the rectifier breaks down to a low resistance in the reverse direction shunting the meter so that its voltage measuring sensitivity is reduced. In a modification (Fig. 3, not shown) the rectifier is shunted by a further resistor effective to increase the breakdown voltage of the diode and shunt the meter while the diode is non- conductive so that the compression of the upper part of the scale is also compressed (Fig. 4, not shown). A theoretical analysis is given. The value of resistor 3 is such that the highest reading of the lower scale range coincides with the lowest reading of the high range.
Patent GB-569326-A (GB)
Title: Improvements relating to die casting, injection moulding and like machines
IPC: B29C45/67
Filed: 1943-11-12
Abstract: 569,326. Casting-machines. E.M.B. CO., Ltd., and CATLIN, L. A. Nov. 12, 1943, No. 18887. [Class 83 (i)] [Also in Groups V and XXIX] Clamping moulds.-A die-casting, injectionmoulding or like machine has a mould part c operated by a piston b<1> which is moved, to close the mould, by liquid forced from a receptacle e by a plunger m through a valve h, is held in the closed position by a higher pressure applied by a plunger g<2> and fluidoperated piston g<1> arranged in line with the piston-rod b<2>, and is returned by fluid pressure on the other side of the piston b<1>. The fluid may be gas or liquid and is first applied above a piston n to move the plunger m through a space q having a vent and filling opening r, past packing o into the receptacle e containing oil. The valve h is then opened by a hand lever to admit the oil to the cylinder a and move the piston b<1> to the left. The valve is then closed and the fluid is applied to the piston g' to move it to the left. When the mould is to be opened, the valve h is opened and all the pistons are returned by admitting fluid pressure to their reverse sides. Valves, for controlling the admission and release of fluid to and from the different parts, may be controlled by cams on the spindle of the valve h and this may be formed with a cam surface v to engage a flat w on a rod x attached to the part c to limit the angular movement of the spindle j in certain positions of the part c.
Patent GB-353199-A (GB)
Title: Apparatus for use in connection with the making, infusing, or heating of coffee and the like
IPC: A47J31/50
Filed: 1930-06-21
Abstract: 353,199. Heating water. MELROSE, T. A., 22, Broughton Place, Edinburgh. June 21, 1930, No. 18948. [Class 64 (i).] A container A with a false bottom B is partly filled with water, which is heated to boiling by a gas ring, and tea or coffee jugs H, G are placed on the false bottom. When the water in the container is sufficiently hot, boiling water from a kettle &c. is poured into the jugs G, H. The beverage is then infused without the water in the jugs G, H boiling.
Patent GB-670526-A (GB)
Title: Improvements in or relating to alkyl lead compounds or compositions which are stabilized against decomposition
IPC: C10L1/10
Filed: 1949-07-19
Abstract: Alkyl lead compositions which are stabilized against thermal decomposition comprise an alkyl lead compound and one or more aryl fused ring hydrocarbons or aryl substituted olefinic hydrocarbons, which latter may also be substituted with a negative radical. The aryl compound may comprise from 0.01 to 5 per cent by weight of the alkyl lead compound.  The aryl compound may be a styrene, a substituted styrene, e.g. a bromo-styrene, or a naphthalene.  In a process for the manufacture of an alkyl lead compound including the steps of reaction, separation, purification and blending, one or more of these steps may be conducted in the presence of one or more of the aryl compounds referred to above, e.g. after the synthesis of an alkyl lead compound, the reaction mixture may be distilled in the presence of one or more of the above aryl compounds.  Alkyl lead compounds which may be stabilized are tetraethyl-, tetramethyl-, tetrapropyl-, dimethyldiethyl-, and triethylphenyl-lead and triethyl lead bromide. p  The Specification as open to inspection under Sect. 91 refers to a large number of organic chemical compounds which may be used to stabilize the alkyl lead compounds.  This subject-matter does not appear in the Specification as accepted.
Patent GB-171954-A (GB)
Title: A combined knife, fork and spoon
IPC: A47G21/06
Filed: 1921-07-13
Abstract: 171,954. Abram, E. W. July 13, 1921. Spoons.-A combination knife, fork, and spoon comprises two members A, A<1>, one end of each of which is formed as a half spoon, the other ends being formed as, or provided with1 a knife blade B and fork prongs C respectively. The part A<1> has a. pin or other projection d which takes into a socket on the other member, and the fork is slotted to accommodate the blade B when the two parts are fitted together to form a complete spoon.
Patent GB-1033997-A (GB)
Title: Window latch mechanisms
Inventor: BETTS ARTHUR JOHN
IPC: E05C1/16
Filed: 1964-05-07
Abstract: 1,033,997. Latch fastenings. FORD MOTOR CO. Ltd. May 7, 1964, No. 19044/64. Heading E2A. A latch mechanism adapted to be mounted on a sliding window, comprises a part 7 which when the latch mechanism is mounted on the window is manually rotatable about an axis perpendicular to the general plane of the window, a latch part 5 which is between the rotatable part and the window and is movable relative to the window towards or away from a position in which the latch part is adapted to contact a stop part 37, the latch part and the rotatable part being pivotally connected at an axis which is parallel to the first axis so that rotation of the rotatable part moves the latch part, and when the latch part is in contact with the stop part the window is prevented from being slid open. In the embodiment shown the rotatable part is a plastics knob 7, rotatable on a stud 17 on a base portion 11 bonded to the window, and having an aperture which receives with play a pin 2 on the latch 5, rotation of the knob causing sliding of the latch 5 into or out of contact with the stop 37. The latch is guided during sliding by the engagement of the stud 17 with an elongated aperture 19 in the latch, and contact between its side edges 22 and the end wall portions 23, 25 of an upstanding wall 9 on the base portion 11.